//packer version (function(global) { // ************************************************************* // LiteGraph CLASS ******* // ************************************************************* /** * The Global Scope. It contains all the registered node classes. * * @class LiteGraph * @constructor */ var LiteGraph = (global.LiteGraph = { VERSION: 0.4, CANVAS_GRID_SIZE: 10, NODE_TITLE_HEIGHT: 30, NODE_TITLE_TEXT_Y: 20, NODE_SLOT_HEIGHT: 20, NODE_WIDGET_HEIGHT: 20, NODE_WIDTH: 140, NODE_MIN_WIDTH: 50, NODE_COLLAPSED_RADIUS: 10, NODE_COLLAPSED_WIDTH: 80, NODE_TITLE_COLOR: "#999", NODE_SELECTED_TITLE_COLOR: "#FFF", NODE_TEXT_SIZE: 14, NODE_TEXT_COLOR: "#AAA", NODE_SUBTEXT_SIZE: 12, NODE_DEFAULT_COLOR: "#333", NODE_DEFAULT_BGCOLOR: "#353535", NODE_DEFAULT_BOXCOLOR: "#666", NODE_DEFAULT_SHAPE: "box", NODE_BOX_OUTLINE_COLOR: "#FFF", DEFAULT_SHADOW_COLOR: "rgba(0,0,0,0.5)", DEFAULT_GROUP_FONT: 24, WIDGET_BGCOLOR: "#222", WIDGET_OUTLINE_COLOR: "#666", WIDGET_TEXT_COLOR: "#DDD", WIDGET_SECONDARY_TEXT_COLOR: "#999", LINK_COLOR: "#9A9", EVENT_LINK_COLOR: "#A86", CONNECTING_LINK_COLOR: "#AFA", MAX_NUMBER_OF_NODES: 1000, //avoid infinite loops DEFAULT_POSITION: [100, 100], //default node position VALID_SHAPES: ["default", "box", "round", "card"], //,"circle" //shapes are used for nodes but also for slots BOX_SHAPE: 1, ROUND_SHAPE: 2, CIRCLE_SHAPE: 3, CARD_SHAPE: 4, ARROW_SHAPE: 5, GRID_SHAPE: 6, // intended for slot arrays //enums INPUT: 1, OUTPUT: 2, EVENT: -1, //for outputs ACTION: -1, //for inputs NODE_MODES: ["Always", "On Event", "Never", "On Trigger"], // helper, will add "On Request" and more in the future NODE_MODES_COLORS:["#666","#422","#333","#224","#626"], // use with node_box_coloured_by_mode ALWAYS: 0, ON_EVENT: 1, NEVER: 2, ON_TRIGGER: 3, UP: 1, DOWN: 2, LEFT: 3, RIGHT: 4, CENTER: 5, LINK_RENDER_MODES: ["Straight", "Linear", "Spline"], // helper STRAIGHT_LINK: 0, LINEAR_LINK: 1, SPLINE_LINK: 2, NORMAL_TITLE: 0, NO_TITLE: 1, TRANSPARENT_TITLE: 2, AUTOHIDE_TITLE: 3, VERTICAL_LAYOUT: "vertical", // arrange nodes vertically proxy: null, //used to redirect calls node_images_path: "", debug: false, catch_exceptions: true, throw_errors: true, allow_scripts: false, //if set to true some nodes like Formula would be allowed to evaluate code that comes from unsafe sources (like node configuration), which could lead to exploits registered_node_types: {}, //nodetypes by string node_types_by_file_extension: {}, //used for dropping files in the canvas Nodes: {}, //node types by classname Globals: {}, //used to store vars between graphs searchbox_extras: {}, //used to add extra features to the search box auto_sort_node_types: false, // [true!] If set to true, will automatically sort node types / categories in the context menus node_box_coloured_when_on: false, // [true!] this make the nodes box (top left circle) coloured when triggered (execute/action), visual feedback node_box_coloured_by_mode: false, // [true!] nodebox based on node mode, visual feedback dialog_close_on_mouse_leave: false, // [false on mobile] better true if not touch device, TODO add an helper/listener to close if false dialog_close_on_mouse_leave_delay: 500, shift_click_do_break_link_from: false, // [false!] prefer false if results too easy to break links - implement with ALT or TODO custom keys click_do_break_link_to: false, // [false!]prefer false, way too easy to break links search_hide_on_mouse_leave: true, // [false on mobile] better true if not touch device, TODO add an helper/listener to close if false search_filter_enabled: false, // [true!] enable filtering slots type in the search widget, !requires auto_load_slot_types or manual set registered_slot_[in/out]_types and slot_types_[in/out] search_show_all_on_open: true, // [true!] opens the results list when opening the search widget auto_load_slot_types: false, // [if want false, use true, run, get vars values to be statically set, than disable] nodes types and nodeclass association with node types need to be calculated, if dont want this, calculate once and set registered_slot_[in/out]_types and slot_types_[in/out] // set these values if not using auto_load_slot_types registered_slot_in_types: {}, // slot types for nodeclass registered_slot_out_types: {}, // slot types for nodeclass slot_types_in: [], // slot types IN slot_types_out: [], // slot types OUT slot_types_default_in: [], // specify for each IN slot type a(/many) default node(s), use single string, array, or object (with node, title, parameters, ..) like for search slot_types_default_out: [], // specify for each OUT slot type a(/many) default node(s), use single string, array, or object (with node, title, parameters, ..) like for search alt_drag_do_clone_nodes: false, // [true!] very handy, ALT click to clone and drag the new node do_add_triggers_slots: false, // [true!] will create and connect event slots when using action/events connections, !WILL CHANGE node mode when using onTrigger (enable mode colors), onExecuted does not need this allow_multi_output_for_events: true, // [false!] being events, it is strongly reccomended to use them sequentially, one by one middle_click_slot_add_default_node: false, //[true!] allows to create and connect a ndoe clicking with the third button (wheel) release_link_on_empty_shows_menu: false, //[true!] dragging a link to empty space will open a menu, add from list, search or defaults pointerevents_method: "pointer", // "mouse"|"pointer" use mouse for retrocompatibility issues? (none found @ now) // TODO implement pointercancel, gotpointercapture, lostpointercapture, (pointerover, pointerout if necessary) ctrl_shift_v_paste_connect_unselected_outputs: true, //[true!] allows ctrl + shift + v to paste nodes with the outputs of the unselected nodes connected with the inputs of the newly pasted nodes /** * Register a node class so it can be listed when the user wants to create a new one * @method registerNodeType * @param {String} type name of the node and path * @param {Class} base_class class containing the structure of a node */ registerNodeType: function(type, base_class) { if (!base_class.prototype) { throw "Cannot register a simple object, it must be a class with a prototype"; } base_class.type = type; if (LiteGraph.debug) { console.log("Node registered: " + type); } const classname = base_class.name; const pos = type.lastIndexOf("/"); base_class.category = type.substring(0, pos); if (!base_class.title) { base_class.title = classname; } //extend class for (var i in LGraphNode.prototype) { if (!base_class.prototype[i]) { base_class.prototype[i] = LGraphNode.prototype[i]; } } const prev = this.registered_node_types[type]; if(prev) { console.log("replacing node type: " + type); } if( !Object.prototype.hasOwnProperty.call( base_class.prototype, "shape") ) { Object.defineProperty(base_class.prototype, "shape", { set: function(v) { switch (v) { case "default": delete this._shape; break; case "box": this._shape = LiteGraph.BOX_SHAPE; break; case "round": this._shape = LiteGraph.ROUND_SHAPE; break; case "circle": this._shape = LiteGraph.CIRCLE_SHAPE; break; case "card": this._shape = LiteGraph.CARD_SHAPE; break; default: this._shape = v; } }, get: function() { return this._shape; }, enumerable: true, configurable: true }); //used to know which nodes to create when dragging files to the canvas if (base_class.supported_extensions) { for (let i in base_class.supported_extensions) { const ext = base_class.supported_extensions[i]; if(ext && ext.constructor === String) { this.node_types_by_file_extension[ ext.toLowerCase() ] = base_class; } } } } this.registered_node_types[type] = base_class; if (base_class.constructor.name) { this.Nodes[classname] = base_class; } if (LiteGraph.onNodeTypeRegistered) { LiteGraph.onNodeTypeRegistered(type, base_class); } if (prev && LiteGraph.onNodeTypeReplaced) { LiteGraph.onNodeTypeReplaced(type, base_class, prev); } //warnings if (base_class.prototype.onPropertyChange) { console.warn( "LiteGraph node class " + type + " has onPropertyChange method, it must be called onPropertyChanged with d at the end" ); } // TODO one would want to know input and ouput :: this would allow through registerNodeAndSlotType to get all the slots types if (this.auto_load_slot_types) { new base_class(base_class.title || "tmpnode"); } }, /** * removes a node type from the system * @method unregisterNodeType * @param {String|Object} type name of the node or the node constructor itself */ unregisterNodeType: function(type) { const base_class = type.constructor === String ? this.registered_node_types[type] : type; if (!base_class) { throw "node type not found: " + type; } delete this.registered_node_types[base_class.type]; if (base_class.constructor.name) { delete this.Nodes[base_class.constructor.name]; } }, /** * Save a slot type and his node * @method registerSlotType * @param {String|Object} type name of the node or the node constructor itself * @param {String} slot_type name of the slot type (variable type), eg. string, number, array, boolean, .. */ registerNodeAndSlotType: function(type, slot_type, out){ out = out || false; const base_class = type.constructor === String && this.registered_node_types[type] !== "anonymous" ? this.registered_node_types[type] : type; const class_type = base_class.constructor.type; let allTypes = []; if (typeof slot_type === "string") { allTypes = slot_type.split(","); } else if (slot_type == this.EVENT || slot_type == this.ACTION) { allTypes = ["_event_"]; } else { allTypes = ["*"]; } for (let i = 0; i < allTypes.length; ++i) { let slotType = allTypes[i]; if (slotType === "") { slotType = "*"; } const registerTo = out ? "registered_slot_out_types" : "registered_slot_in_types"; if (this[registerTo][slotType] === undefined) { this[registerTo][slotType] = { nodes: [] }; } if (!this[registerTo][slotType].nodes.includes(class_type)) { this[registerTo][slotType].nodes.push(class_type); } // check if is a new type if (!out) { if (!this.slot_types_in.includes(slotType.toLowerCase())) { this.slot_types_in.push(slotType.toLowerCase()); this.slot_types_in.sort(); } } else { if (!this.slot_types_out.includes(slotType.toLowerCase())) { this.slot_types_out.push(slotType.toLowerCase()); this.slot_types_out.sort(); } } } }, /** * Create a new nodetype by passing a function, it wraps it with a proper class and generates inputs according to the parameters of the function. * Useful to wrap simple methods that do not require properties, and that only process some input to generate an output. * @method wrapFunctionAsNode * @param {String} name node name with namespace (p.e.: 'math/sum') * @param {Function} func * @param {Array} param_types [optional] an array containing the type of every parameter, otherwise parameters will accept any type * @param {String} return_type [optional] string with the return type, otherwise it will be generic * @param {Object} properties [optional] properties to be configurable */ wrapFunctionAsNode: function( name, func, param_types, return_type, properties ) { var params = Array(func.length); var code = ""; var names = LiteGraph.getParameterNames(func); for (var i = 0; i < names.length; ++i) { code += "this.addInput('" + names[i] + "'," + (param_types && param_types[i] ? "'" + param_types[i] + "'" : "0") + ");\n"; } code += "this.addOutput('out'," + (return_type ? "'" + return_type + "'" : 0) + ");\n"; if (properties) { code += "this.properties = " + JSON.stringify(properties) + ";\n"; } var classobj = Function(code); classobj.title = name.split("/").pop(); classobj.desc = "Generated from " + func.name; classobj.prototype.onExecute = function onExecute() { for (var i = 0; i < params.length; ++i) { params[i] = this.getInputData(i); } var r = func.apply(this, params); this.setOutputData(0, r); }; this.registerNodeType(name, classobj); }, /** * Removes all previously registered node's types */ clearRegisteredTypes: function() { this.registered_node_types = {}; this.node_types_by_file_extension = {}; this.Nodes = {}; this.searchbox_extras = {}; }, /** * Adds this method to all nodetypes, existing and to be created * (You can add it to LGraphNode.prototype but then existing node types wont have it) * @method addNodeMethod * @param {Function} func */ addNodeMethod: function(name, func) { LGraphNode.prototype[name] = func; for (var i in this.registered_node_types) { var type = this.registered_node_types[i]; if (type.prototype[name]) { type.prototype["_" + name] = type.prototype[name]; } //keep old in case of replacing type.prototype[name] = func; } }, /** * Create a node of a given type with a name. The node is not attached to any graph yet. * @method createNode * @param {String} type full name of the node class. p.e. "math/sin" * @param {String} name a name to distinguish from other nodes * @param {Object} options to set options */ createNode: function(type, title, options) { var base_class = this.registered_node_types[type]; if (!base_class) { if (LiteGraph.debug) { console.log( 'GraphNode type "' + type + '" not registered.' ); } return null; } var prototype = base_class.prototype || base_class; title = title || base_class.title || type; var node = null; if (LiteGraph.catch_exceptions) { try { node = new base_class(title); } catch (err) { console.error(err); return null; } } else { node = new base_class(title); } node.type = type; if (!node.title && title) { node.title = title; } if (!node.properties) { node.properties = {}; } if (!node.properties_info) { node.properties_info = []; } if (!node.flags) { node.flags = {}; } if (!node.size) { node.size = node.computeSize(); //call onresize? } if (!node.pos) { node.pos = LiteGraph.DEFAULT_POSITION.concat(); } if (!node.mode) { node.mode = LiteGraph.ALWAYS; } //extra options if (options) { for (var i in options) { node[i] = options[i]; } } // callback if ( node.onNodeCreated ) { node.onNodeCreated(); } return node; }, /** * Returns a registered node type with a given name * @method getNodeType * @param {String} type full name of the node class. p.e. "math/sin" * @return {Class} the node class */ getNodeType: function(type) { return this.registered_node_types[type]; }, /** * Returns a list of node types matching one category * @method getNodeType * @param {String} category category name * @return {Array} array with all the node classes */ getNodeTypesInCategory: function(category, filter) { var r = []; for (var i in this.registered_node_types) { var type = this.registered_node_types[i]; if (type.filter != filter) { continue; } if (category == "") { if (type.category == null) { r.push(type); } } else if (type.category == category) { r.push(type); } } if (this.auto_sort_node_types) { r.sort(function(a,b){return a.title.localeCompare(b.title)}); } return r; }, /** * Returns a list with all the node type categories * @method getNodeTypesCategories * @param {String} filter only nodes with ctor.filter equal can be shown * @return {Array} array with all the names of the categories */ getNodeTypesCategories: function( filter ) { var categories = { "": 1 }; for (var i in this.registered_node_types) { var type = this.registered_node_types[i]; if ( type.category && !type.skip_list ) { if(type.filter != filter) continue; categories[type.category] = 1; } } var result = []; for (var i in categories) { result.push(i); } return this.auto_sort_node_types ? result.sort() : result; }, //debug purposes: reloads all the js scripts that matches a wildcard reloadNodes: function(folder_wildcard) { var tmp = document.getElementsByTagName("script"); //weird, this array changes by its own, so we use a copy var script_files = []; for (var i=0; i < tmp.length; i++) { script_files.push(tmp[i]); } var docHeadObj = document.getElementsByTagName("head")[0]; folder_wildcard = document.location.href + folder_wildcard; for (var i=0; i < script_files.length; i++) { var src = script_files[i].src; if ( !src || src.substr(0, folder_wildcard.length) != folder_wildcard ) { continue; } try { if (LiteGraph.debug) { console.log("Reloading: " + src); } var dynamicScript = document.createElement("script"); dynamicScript.type = "text/javascript"; dynamicScript.src = src; docHeadObj.appendChild(dynamicScript); docHeadObj.removeChild(script_files[i]); } catch (err) { if (LiteGraph.throw_errors) { throw err; } if (LiteGraph.debug) { console.log("Error while reloading " + src); } } } if (LiteGraph.debug) { console.log("Nodes reloaded"); } }, //separated just to improve if it doesn't work cloneObject: function(obj, target) { if (obj == null) { return null; } var r = JSON.parse(JSON.stringify(obj)); if (!target) { return r; } for (var i in r) { target[i] = r[i]; } return target; }, /** * Returns if the types of two slots are compatible (taking into account wildcards, etc) * @method isValidConnection * @param {String} type_a * @param {String} type_b * @return {Boolean} true if they can be connected */ isValidConnection: function(type_a, type_b) { if (type_a=="" || type_a==="*") type_a = 0; if (type_b=="" || type_b==="*") type_b = 0; if ( !type_a //generic output || !type_b // generic input || type_a == type_b //same type (is valid for triggers) || (type_a == LiteGraph.EVENT && type_b == LiteGraph.ACTION) ) { return true; } // Enforce string type to handle toLowerCase call (-1 number not ok) type_a = String(type_a); type_b = String(type_b); type_a = type_a.toLowerCase(); type_b = type_b.toLowerCase(); // For nodes supporting multiple connection types if (type_a.indexOf(",") == -1 && type_b.indexOf(",") == -1) { return type_a == type_b; } // Check all permutations to see if one is valid var supported_types_a = type_a.split(","); var supported_types_b = type_b.split(","); for (var i = 0; i < supported_types_a.length; ++i) { for (var j = 0; j < supported_types_b.length; ++j) { if(this.isValidConnection(supported_types_a[i],supported_types_b[j])){ //if (supported_types_a[i] == supported_types_b[j]) { return true; } } } return false; }, /** * Register a string in the search box so when the user types it it will recommend this node * @method registerSearchboxExtra * @param {String} node_type the node recommended * @param {String} description text to show next to it * @param {Object} data it could contain info of how the node should be configured * @return {Boolean} true if they can be connected */ registerSearchboxExtra: function(node_type, description, data) { this.searchbox_extras[description.toLowerCase()] = { type: node_type, desc: description, data: data }; }, /** * Wrapper to load files (from url using fetch or from file using FileReader) * @method fetchFile * @param {String|File|Blob} url the url of the file (or the file itself) * @param {String} type an string to know how to fetch it: "text","arraybuffer","json","blob" * @param {Function} on_complete callback(data) * @param {Function} on_error in case of an error * @return {FileReader|Promise} returns the object used to */ fetchFile: function( url, type, on_complete, on_error ) { var that = this; if(!url) return null; type = type || "text"; if( url.constructor === String ) { if (url.substr(0, 4) == "http" && LiteGraph.proxy) { url = LiteGraph.proxy + url.substr(url.indexOf(":") + 3); } return fetch(url) .then(function(response) { if(!response.ok) throw new Error("File not found"); //it will be catch below if(type == "arraybuffer") return response.arrayBuffer(); else if(type == "text" || type == "string") return response.text(); else if(type == "json") return response.json(); else if(type == "blob") return response.blob(); }) .then(function(data) { if(on_complete) on_complete(data); }) .catch(function(error) { console.error("error fetching file:",url); if(on_error) on_error(error); }); } else if( url.constructor === File || url.constructor === Blob) { var reader = new FileReader(); reader.onload = function(e) { var v = e.target.result; if( type == "json" ) v = JSON.parse(v); if(on_complete) on_complete(v); } if(type == "arraybuffer") return reader.readAsArrayBuffer(url); else if(type == "text" || type == "json") return reader.readAsText(url); else if(type == "blob") return reader.readAsBinaryString(url); } return null; } }); //timer that works everywhere if (typeof performance != "undefined") { LiteGraph.getTime = performance.now.bind(performance); } else if (typeof Date != "undefined" && Date.now) { LiteGraph.getTime = Date.now.bind(Date); } else if (typeof process != "undefined") { LiteGraph.getTime = function() { var t = process.hrtime(); return t[0] * 0.001 + t[1] * 1e-6; }; } else { LiteGraph.getTime = function getTime() { return new Date().getTime(); }; } //********************************************************************************* // LGraph CLASS //********************************************************************************* /** * LGraph is the class that contain a full graph. We instantiate one and add nodes to it, and then we can run the execution loop. * supported callbacks: + onNodeAdded: when a new node is added to the graph + onNodeRemoved: when a node inside this graph is removed + onNodeConnectionChange: some connection has changed in the graph (connected or disconnected) * * @class LGraph * @constructor * @param {Object} o data from previous serialization [optional] */ function LGraph(o) { if (LiteGraph.debug) { console.log("Graph created"); } this.list_of_graphcanvas = null; this.clear(); if (o) { this.configure(o); } } global.LGraph = LiteGraph.LGraph = LGraph; //default supported types LGraph.supported_types = ["number", "string", "boolean"]; //used to know which types of connections support this graph (some graphs do not allow certain types) LGraph.prototype.getSupportedTypes = function() { return this.supported_types || LGraph.supported_types; }; LGraph.STATUS_STOPPED = 1; LGraph.STATUS_RUNNING = 2; /** * Removes all nodes from this graph * @method clear */ LGraph.prototype.clear = function() { this.stop(); this.status = LGraph.STATUS_STOPPED; this.last_node_id = 0; this.last_link_id = 0; this._version = -1; //used to detect changes //safe clear if (this._nodes) { for (var i = 0; i < this._nodes.length; ++i) { var node = this._nodes[i]; if (node.onRemoved) { node.onRemoved(); } } } //nodes this._nodes = []; this._nodes_by_id = {}; this._nodes_in_order = []; //nodes sorted in execution order this._nodes_executable = null; //nodes that contain onExecute sorted in execution order //other scene stuff this._groups = []; //links this.links = {}; //container with all the links //iterations this.iteration = 0; //custom data this.config = {}; this.vars = {}; this.extra = {}; //to store custom data //timing this.globaltime = 0; this.runningtime = 0; this.fixedtime = 0; this.fixedtime_lapse = 0.01; this.elapsed_time = 0.01; this.last_update_time = 0; this.starttime = 0; this.catch_errors = true; this.nodes_executing = []; this.nodes_actioning = []; this.nodes_executedAction = []; //subgraph_data this.inputs = {}; this.outputs = {}; //notify canvas to redraw this.change(); this.sendActionToCanvas("clear"); }; /** * Attach Canvas to this graph * @method attachCanvas * @param {GraphCanvas} graph_canvas */ LGraph.prototype.attachCanvas = function(graphcanvas) { if (graphcanvas.constructor != LGraphCanvas) { throw "attachCanvas expects a LGraphCanvas instance"; } if (graphcanvas.graph && graphcanvas.graph != this) { graphcanvas.graph.detachCanvas(graphcanvas); } graphcanvas.graph = this; if (!this.list_of_graphcanvas) { this.list_of_graphcanvas = []; } this.list_of_graphcanvas.push(graphcanvas); }; /** * Detach Canvas from this graph * @method detachCanvas * @param {GraphCanvas} graph_canvas */ LGraph.prototype.detachCanvas = function(graphcanvas) { if (!this.list_of_graphcanvas) { return; } var pos = this.list_of_graphcanvas.indexOf(graphcanvas); if (pos == -1) { return; } graphcanvas.graph = null; this.list_of_graphcanvas.splice(pos, 1); }; /** * Starts running this graph every interval milliseconds. * @method start * @param {number} interval amount of milliseconds between executions, if 0 then it renders to the monitor refresh rate */ LGraph.prototype.start = function(interval) { if (this.status == LGraph.STATUS_RUNNING) { return; } this.status = LGraph.STATUS_RUNNING; if (this.onPlayEvent) { this.onPlayEvent(); } this.sendEventToAllNodes("onStart"); //launch this.starttime = LiteGraph.getTime(); this.last_update_time = this.starttime; interval = interval || 0; var that = this; //execute once per frame if ( interval == 0 && typeof window != "undefined" && window.requestAnimationFrame ) { function on_frame() { if (that.execution_timer_id != -1) { return; } window.requestAnimationFrame(on_frame); if(that.onBeforeStep) that.onBeforeStep(); that.runStep(1, !that.catch_errors); if(that.onAfterStep) that.onAfterStep(); } this.execution_timer_id = -1; on_frame(); } else { //execute every 'interval' ms this.execution_timer_id = setInterval(function() { //execute if(that.onBeforeStep) that.onBeforeStep(); that.runStep(1, !that.catch_errors); if(that.onAfterStep) that.onAfterStep(); }, interval); } }; /** * Stops the execution loop of the graph * @method stop execution */ LGraph.prototype.stop = function() { if (this.status == LGraph.STATUS_STOPPED) { return; } this.status = LGraph.STATUS_STOPPED; if (this.onStopEvent) { this.onStopEvent(); } if (this.execution_timer_id != null) { if (this.execution_timer_id != -1) { clearInterval(this.execution_timer_id); } this.execution_timer_id = null; } this.sendEventToAllNodes("onStop"); }; /** * Run N steps (cycles) of the graph * @method runStep * @param {number} num number of steps to run, default is 1 * @param {Boolean} do_not_catch_errors [optional] if you want to try/catch errors * @param {number} limit max number of nodes to execute (used to execute from start to a node) */ LGraph.prototype.runStep = function(num, do_not_catch_errors, limit ) { num = num || 1; var start = LiteGraph.getTime(); this.globaltime = 0.001 * (start - this.starttime); var nodes = this._nodes_executable ? this._nodes_executable : this._nodes; if (!nodes) { return; } limit = limit || nodes.length; if (do_not_catch_errors) { //iterations for (var i = 0; i < num; i++) { for (var j = 0; j < limit; ++j) { var node = nodes[j]; if (node.mode == LiteGraph.ALWAYS && node.onExecute) { //wrap node.onExecute(); node.doExecute(); } } this.fixedtime += this.fixedtime_lapse; if (this.onExecuteStep) { this.onExecuteStep(); } } if (this.onAfterExecute) { this.onAfterExecute(); } } else { try { //iterations for (var i = 0; i < num; i++) { for (var j = 0; j < limit; ++j) { var node = nodes[j]; if (node.mode == LiteGraph.ALWAYS && node.onExecute) { node.onExecute(); } } this.fixedtime += this.fixedtime_lapse; if (this.onExecuteStep) { this.onExecuteStep(); } } if (this.onAfterExecute) { this.onAfterExecute(); } this.errors_in_execution = false; } catch (err) { this.errors_in_execution = true; if (LiteGraph.throw_errors) { throw err; } if (LiteGraph.debug) { console.log("Error during execution: " + err); } this.stop(); } } var now = LiteGraph.getTime(); var elapsed = now - start; if (elapsed == 0) { elapsed = 1; } this.execution_time = 0.001 * elapsed; this.globaltime += 0.001 * elapsed; this.iteration += 1; this.elapsed_time = (now - this.last_update_time) * 0.001; this.last_update_time = now; this.nodes_executing = []; this.nodes_actioning = []; this.nodes_executedAction = []; }; /** * Updates the graph execution order according to relevance of the nodes (nodes with only outputs have more relevance than * nodes with only inputs. * @method updateExecutionOrder */ LGraph.prototype.updateExecutionOrder = function() { this._nodes_in_order = this.computeExecutionOrder(false); this._nodes_executable = []; for (var i = 0; i < this._nodes_in_order.length; ++i) { if (this._nodes_in_order[i].onExecute) { this._nodes_executable.push(this._nodes_in_order[i]); } } }; //This is more internal, it computes the executable nodes in order and returns it LGraph.prototype.computeExecutionOrder = function( only_onExecute, set_level ) { var L = []; var S = []; var M = {}; var visited_links = {}; //to avoid repeating links var remaining_links = {}; //to a //search for the nodes without inputs (starting nodes) for (var i = 0, l = this._nodes.length; i < l; ++i) { var node = this._nodes[i]; if (only_onExecute && !node.onExecute) { continue; } M[node.id] = node; //add to pending nodes var num = 0; //num of input connections if (node.inputs) { for (var j = 0, l2 = node.inputs.length; j < l2; j++) { if (node.inputs[j] && node.inputs[j].link != null) { num += 1; } } } if (num == 0) { //is a starting node S.push(node); if (set_level) { node._level = 1; } } //num of input links else { if (set_level) { node._level = 0; } remaining_links[node.id] = num; } } while (true) { if (S.length == 0) { break; } //get an starting node var node = S.shift(); L.push(node); //add to ordered list delete M[node.id]; //remove from the pending nodes if (!node.outputs) { continue; } //for every output for (var i = 0; i < node.outputs.length; i++) { var output = node.outputs[i]; //not connected if ( output == null || output.links == null || output.links.length == 0 ) { continue; } //for every connection for (var j = 0; j < output.links.length; j++) { var link_id = output.links[j]; var link = this.links[link_id]; if (!link) { continue; } //already visited link (ignore it) if (visited_links[link.id]) { continue; } var target_node = this.getNodeById(link.target_id); if (target_node == null) { visited_links[link.id] = true; continue; } if ( set_level && (!target_node._level || target_node._level <= node._level) ) { target_node._level = node._level + 1; } visited_links[link.id] = true; //mark as visited remaining_links[target_node.id] -= 1; //reduce the number of links remaining if (remaining_links[target_node.id] == 0) { S.push(target_node); } //if no more links, then add to starters array } } } //the remaining ones (loops) for (var i in M) { L.push(M[i]); } if (L.length != this._nodes.length && LiteGraph.debug) { console.warn("something went wrong, nodes missing"); } var l = L.length; //save order number in the node for (var i = 0; i < l; ++i) { L[i].order = i; } //sort now by priority L = L.sort(function(A, B) { var Ap = A.constructor.priority || A.priority || 0; var Bp = B.constructor.priority || B.priority || 0; if (Ap == Bp) { //if same priority, sort by order return A.order - B.order; } return Ap - Bp; //sort by priority }); //save order number in the node, again... for (var i = 0; i < l; ++i) { L[i].order = i; } return L; }; /** * Returns all the nodes that could affect this one (ancestors) by crawling all the inputs recursively. * It doesn't include the node itself * @method getAncestors * @return {Array} an array with all the LGraphNodes that affect this node, in order of execution */ LGraph.prototype.getAncestors = function(node) { var ancestors = []; var pending = [node]; var visited = {}; while (pending.length) { var current = pending.shift(); if (!current.inputs) { continue; } if (!visited[current.id] && current != node) { visited[current.id] = true; ancestors.push(current); } for (var i = 0; i < current.inputs.length; ++i) { var input = current.getInputNode(i); if (input && ancestors.indexOf(input) == -1) { pending.push(input); } } } ancestors.sort(function(a, b) { return a.order - b.order; }); return ancestors; }; /** * Positions every node in a more readable manner * @method arrange */ LGraph.prototype.arrange = function (margin, layout) { margin = margin || 100; const nodes = this.computeExecutionOrder(false, true); const columns = []; for (let i = 0; i < nodes.length; ++i) { const node = nodes[i]; const col = node._level || 1; if (!columns[col]) { columns[col] = []; } columns[col].push(node); } let x = margin; for (let i = 0; i < columns.length; ++i) { const column = columns[i]; if (!column) { continue; } let max_size = 100; let y = margin + LiteGraph.NODE_TITLE_HEIGHT; for (let j = 0; j < column.length; ++j) { const node = column[j]; node.pos[0] = (layout == LiteGraph.VERTICAL_LAYOUT) ? y : x; node.pos[1] = (layout == LiteGraph.VERTICAL_LAYOUT) ? x : y; const max_size_index = (layout == LiteGraph.VERTICAL_LAYOUT) ? 1 : 0; if (node.size[max_size_index] > max_size) { max_size = node.size[max_size_index]; } const node_size_index = (layout == LiteGraph.VERTICAL_LAYOUT) ? 0 : 1; y += node.size[node_size_index] + margin + LiteGraph.NODE_TITLE_HEIGHT; } x += max_size + margin; } this.setDirtyCanvas(true, true); }; /** * Returns the amount of time the graph has been running in milliseconds * @method getTime * @return {number} number of milliseconds the graph has been running */ LGraph.prototype.getTime = function() { return this.globaltime; }; /** * Returns the amount of time accumulated using the fixedtime_lapse var. This is used in context where the time increments should be constant * @method getFixedTime * @return {number} number of milliseconds the graph has been running */ LGraph.prototype.getFixedTime = function() { return this.fixedtime; }; /** * Returns the amount of time it took to compute the latest iteration. Take into account that this number could be not correct * if the nodes are using graphical actions * @method getElapsedTime * @return {number} number of milliseconds it took the last cycle */ LGraph.prototype.getElapsedTime = function() { return this.elapsed_time; }; /** * Sends an event to all the nodes, useful to trigger stuff * @method sendEventToAllNodes * @param {String} eventname the name of the event (function to be called) * @param {Array} params parameters in array format */ LGraph.prototype.sendEventToAllNodes = function(eventname, params, mode) { mode = mode || LiteGraph.ALWAYS; var nodes = this._nodes_in_order ? this._nodes_in_order : this._nodes; if (!nodes) { return; } for (var j = 0, l = nodes.length; j < l; ++j) { var node = nodes[j]; if ( node.constructor === LiteGraph.Subgraph && eventname != "onExecute" ) { if (node.mode == mode) { node.sendEventToAllNodes(eventname, params, mode); } continue; } if (!node[eventname] || node.mode != mode) { continue; } if (params === undefined) { node[eventname](); } else if (params && params.constructor === Array) { node[eventname].apply(node, params); } else { node[eventname](params); } } }; LGraph.prototype.sendActionToCanvas = function(action, params) { if (!this.list_of_graphcanvas) { return; } for (var i = 0; i < this.list_of_graphcanvas.length; ++i) { var c = this.list_of_graphcanvas[i]; if (c[action]) { c[action].apply(c, params); } } }; /** * Adds a new node instance to this graph * @method add * @param {LGraphNode} node the instance of the node */ LGraph.prototype.add = function(node, skip_compute_order) { if (!node) { return; } //groups if (node.constructor === LGraphGroup) { this._groups.push(node); this.setDirtyCanvas(true); this.change(); node.graph = this; this._version++; return; } //nodes if (node.id != -1 && this._nodes_by_id[node.id] != null) { console.warn( "LiteGraph: there is already a node with this ID, changing it" ); node.id = ++this.last_node_id; } if (this._nodes.length >= LiteGraph.MAX_NUMBER_OF_NODES) { throw "LiteGraph: max number of nodes in a graph reached"; } //give him an id if (node.id == null || node.id == -1) { node.id = ++this.last_node_id; } else if (this.last_node_id < node.id) { this.last_node_id = node.id; } node.graph = this; this._version++; this._nodes.push(node); this._nodes_by_id[node.id] = node; if (node.onAdded) { node.onAdded(this); } if (this.config.align_to_grid) { node.alignToGrid(); } if (!skip_compute_order) { this.updateExecutionOrder(); } if (this.onNodeAdded) { this.onNodeAdded(node); } this.setDirtyCanvas(true); this.change(); return node; //to chain actions }; /** * Removes a node from the graph * @method remove * @param {LGraphNode} node the instance of the node */ LGraph.prototype.remove = function(node) { if (node.constructor === LiteGraph.LGraphGroup) { var index = this._groups.indexOf(node); if (index != -1) { this._groups.splice(index, 1); } node.graph = null; this._version++; this.setDirtyCanvas(true, true); this.change(); return; } if (this._nodes_by_id[node.id] == null) { return; } //not found if (node.ignore_remove) { return; } //cannot be removed this.beforeChange(); //sure? - almost sure is wrong //disconnect inputs if (node.inputs) { for (var i = 0; i < node.inputs.length; i++) { var slot = node.inputs[i]; if (slot.link != null) { node.disconnectInput(i); } } } //disconnect outputs if (node.outputs) { for (var i = 0; i < node.outputs.length; i++) { var slot = node.outputs[i]; if (slot.links != null && slot.links.length) { node.disconnectOutput(i); } } } //node.id = -1; //why? //callback if (node.onRemoved) { node.onRemoved(); } node.graph = null; this._version++; //remove from canvas render if (this.list_of_graphcanvas) { for (var i = 0; i < this.list_of_graphcanvas.length; ++i) { var canvas = this.list_of_graphcanvas[i]; if (canvas.selected_nodes[node.id]) { delete canvas.selected_nodes[node.id]; } if (canvas.node_dragged == node) { canvas.node_dragged = null; } } } //remove from containers var pos = this._nodes.indexOf(node); if (pos != -1) { this._nodes.splice(pos, 1); } delete this._nodes_by_id[node.id]; if (this.onNodeRemoved) { this.onNodeRemoved(node); } //close panels this.sendActionToCanvas("checkPanels"); this.setDirtyCanvas(true, true); this.afterChange(); //sure? - almost sure is wrong this.change(); this.updateExecutionOrder(); }; /** * Returns a node by its id. * @method getNodeById * @param {Number} id */ LGraph.prototype.getNodeById = function(id) { if (id == null) { return null; } return this._nodes_by_id[id]; }; /** * Returns a list of nodes that matches a class * @method findNodesByClass * @param {Class} classObject the class itself (not an string) * @return {Array} a list with all the nodes of this type */ LGraph.prototype.findNodesByClass = function(classObject, result) { result = result || []; result.length = 0; for (var i = 0, l = this._nodes.length; i < l; ++i) { if (this._nodes[i].constructor === classObject) { result.push(this._nodes[i]); } } return result; }; /** * Returns a list of nodes that matches a type * @method findNodesByType * @param {String} type the name of the node type * @return {Array} a list with all the nodes of this type */ LGraph.prototype.findNodesByType = function(type, result) { var type = type.toLowerCase(); result = result || []; result.length = 0; for (var i = 0, l = this._nodes.length; i < l; ++i) { if (this._nodes[i].type.toLowerCase() == type) { result.push(this._nodes[i]); } } return result; }; /** * Returns the first node that matches a name in its title * @method findNodeByTitle * @param {String} name the name of the node to search * @return {Node} the node or null */ LGraph.prototype.findNodeByTitle = function(title) { for (var i = 0, l = this._nodes.length; i < l; ++i) { if (this._nodes[i].title == title) { return this._nodes[i]; } } return null; }; /** * Returns a list of nodes that matches a name * @method findNodesByTitle * @param {String} name the name of the node to search * @return {Array} a list with all the nodes with this name */ LGraph.prototype.findNodesByTitle = function(title) { var result = []; for (var i = 0, l = this._nodes.length; i < l; ++i) { if (this._nodes[i].title == title) { result.push(this._nodes[i]); } } return result; }; /** * Returns the top-most node in this position of the canvas * @method getNodeOnPos * @param {number} x the x coordinate in canvas space * @param {number} y the y coordinate in canvas space * @param {Array} nodes_list a list with all the nodes to search from, by default is all the nodes in the graph * @return {LGraphNode} the node at this position or null */ LGraph.prototype.getNodeOnPos = function(x, y, nodes_list, margin) { nodes_list = nodes_list || this._nodes; var nRet = null; for (var i = nodes_list.length - 1; i >= 0; i--) { var n = nodes_list[i]; var skip_title = n.constructor.title_mode == LiteGraph.NO_TITLE; if (n.isPointInside(x, y, margin, skip_title)) { // check for lesser interest nodes (TODO check for overlapping, use the top) /*if (typeof n == "LGraphGroup"){ nRet = n; }else{*/ return n; /*}*/ } } return nRet; }; /** * Returns the top-most group in that position * @method getGroupOnPos * @param {number} x the x coordinate in canvas space * @param {number} y the y coordinate in canvas space * @return {LGraphGroup} the group or null */ LGraph.prototype.getGroupOnPos = function(x, y) { for (var i = this._groups.length - 1; i >= 0; i--) { var g = this._groups[i]; if (g.isPointInside(x, y, 2, true)) { return g; } } return null; }; /** * Checks that the node type matches the node type registered, used when replacing a nodetype by a newer version during execution * this replaces the ones using the old version with the new version * @method checkNodeTypes */ LGraph.prototype.checkNodeTypes = function() { var changes = false; for (var i = 0; i < this._nodes.length; i++) { var node = this._nodes[i]; var ctor = LiteGraph.registered_node_types[node.type]; if (node.constructor == ctor) { continue; } console.log("node being replaced by newer version: " + node.type); var newnode = LiteGraph.createNode(node.type); changes = true; this._nodes[i] = newnode; newnode.configure(node.serialize()); newnode.graph = this; this._nodes_by_id[newnode.id] = newnode; if (node.inputs) { newnode.inputs = node.inputs.concat(); } if (node.outputs) { newnode.outputs = node.outputs.concat(); } } this.updateExecutionOrder(); }; // ********** GLOBALS ***************** LGraph.prototype.onAction = function(action, param, options) { this._input_nodes = this.findNodesByClass( LiteGraph.GraphInput, this._input_nodes ); for (var i = 0; i < this._input_nodes.length; ++i) { var node = this._input_nodes[i]; if (node.properties.name != action) { continue; } //wrap node.onAction(action, param); node.actionDo(action, param, options); break; } }; LGraph.prototype.trigger = function(action, param) { if (this.onTrigger) { this.onTrigger(action, param); } }; /** * Tell this graph it has a global graph input of this type * @method addGlobalInput * @param {String} name * @param {String} type * @param {*} value [optional] */ LGraph.prototype.addInput = function(name, type, value) { var input = this.inputs[name]; if (input) { //already exist return; } this.beforeChange(); this.inputs[name] = { name: name, type: type, value: value }; this._version++; this.afterChange(); if (this.onInputAdded) { this.onInputAdded(name, type); } if (this.onInputsOutputsChange) { this.onInputsOutputsChange(); } }; /** * Assign a data to the global graph input * @method setGlobalInputData * @param {String} name * @param {*} data */ LGraph.prototype.setInputData = function(name, data) { var input = this.inputs[name]; if (!input) { return; } input.value = data; }; /** * Returns the current value of a global graph input * @method getInputData * @param {String} name * @return {*} the data */ LGraph.prototype.getInputData = function(name) { var input = this.inputs[name]; if (!input) { return null; } return input.value; }; /** * Changes the name of a global graph input * @method renameInput * @param {String} old_name * @param {String} new_name */ LGraph.prototype.renameInput = function(old_name, name) { if (name == old_name) { return; } if (!this.inputs[old_name]) { return false; } if (this.inputs[name]) { console.error("there is already one input with that name"); return false; } this.inputs[name] = this.inputs[old_name]; delete this.inputs[old_name]; this._version++; if (this.onInputRenamed) { this.onInputRenamed(old_name, name); } if (this.onInputsOutputsChange) { this.onInputsOutputsChange(); } }; /** * Changes the type of a global graph input * @method changeInputType * @param {String} name * @param {String} type */ LGraph.prototype.changeInputType = function(name, type) { if (!this.inputs[name]) { return false; } if ( this.inputs[name].type && String(this.inputs[name].type).toLowerCase() == String(type).toLowerCase() ) { return; } this.inputs[name].type = type; this._version++; if (this.onInputTypeChanged) { this.onInputTypeChanged(name, type); } }; /** * Removes a global graph input * @method removeInput * @param {String} name * @param {String} type */ LGraph.prototype.removeInput = function(name) { if (!this.inputs[name]) { return false; } delete this.inputs[name]; this._version++; if (this.onInputRemoved) { this.onInputRemoved(name); } if (this.onInputsOutputsChange) { this.onInputsOutputsChange(); } return true; }; /** * Creates a global graph output * @method addOutput * @param {String} name * @param {String} type * @param {*} value */ LGraph.prototype.addOutput = function(name, type, value) { this.outputs[name] = { name: name, type: type, value: value }; this._version++; if (this.onOutputAdded) { this.onOutputAdded(name, type); } if (this.onInputsOutputsChange) { this.onInputsOutputsChange(); } }; /** * Assign a data to the global output * @method setOutputData * @param {String} name * @param {String} value */ LGraph.prototype.setOutputData = function(name, value) { var output = this.outputs[name]; if (!output) { return; } output.value = value; }; /** * Returns the current value of a global graph output * @method getOutputData * @param {String} name * @return {*} the data */ LGraph.prototype.getOutputData = function(name) { var output = this.outputs[name]; if (!output) { return null; } return output.value; }; /** * Renames a global graph output * @method renameOutput * @param {String} old_name * @param {String} new_name */ LGraph.prototype.renameOutput = function(old_name, name) { if (!this.outputs[old_name]) { return false; } if (this.outputs[name]) { console.error("there is already one output with that name"); return false; } this.outputs[name] = this.outputs[old_name]; delete this.outputs[old_name]; this._version++; if (this.onOutputRenamed) { this.onOutputRenamed(old_name, name); } if (this.onInputsOutputsChange) { this.onInputsOutputsChange(); } }; /** * Changes the type of a global graph output * @method changeOutputType * @param {String} name * @param {String} type */ LGraph.prototype.changeOutputType = function(name, type) { if (!this.outputs[name]) { return false; } if ( this.outputs[name].type && String(this.outputs[name].type).toLowerCase() == String(type).toLowerCase() ) { return; } this.outputs[name].type = type; this._version++; if (this.onOutputTypeChanged) { this.onOutputTypeChanged(name, type); } }; /** * Removes a global graph output * @method removeOutput * @param {String} name */ LGraph.prototype.removeOutput = function(name) { if (!this.outputs[name]) { return false; } delete this.outputs[name]; this._version++; if (this.onOutputRemoved) { this.onOutputRemoved(name); } if (this.onInputsOutputsChange) { this.onInputsOutputsChange(); } return true; }; LGraph.prototype.triggerInput = function(name, value) { var nodes = this.findNodesByTitle(name); for (var i = 0; i < nodes.length; ++i) { nodes[i].onTrigger(value); } }; LGraph.prototype.setCallback = function(name, func) { var nodes = this.findNodesByTitle(name); for (var i = 0; i < nodes.length; ++i) { nodes[i].setTrigger(func); } }; //used for undo, called before any change is made to the graph LGraph.prototype.beforeChange = function(info) { if (this.onBeforeChange) { this.onBeforeChange(this,info); } this.sendActionToCanvas("onBeforeChange", this); }; //used to resend actions, called after any change is made to the graph LGraph.prototype.afterChange = function(info) { if (this.onAfterChange) { this.onAfterChange(this,info); } this.sendActionToCanvas("onAfterChange", this); }; LGraph.prototype.connectionChange = function(node, link_info) { this.updateExecutionOrder(); if (this.onConnectionChange) { this.onConnectionChange(node); } this._version++; this.sendActionToCanvas("onConnectionChange"); }; /** * returns if the graph is in live mode * @method isLive */ LGraph.prototype.isLive = function() { if (!this.list_of_graphcanvas) { return false; } for (var i = 0; i < this.list_of_graphcanvas.length; ++i) { var c = this.list_of_graphcanvas[i]; if (c.live_mode) { return true; } } return false; }; /** * clears the triggered slot animation in all links (stop visual animation) * @method clearTriggeredSlots */ LGraph.prototype.clearTriggeredSlots = function() { for (var i in this.links) { var link_info = this.links[i]; if (!link_info) { continue; } if (link_info._last_time) { link_info._last_time = 0; } } }; /* Called when something visually changed (not the graph!) */ LGraph.prototype.change = function() { if (LiteGraph.debug) { console.log("Graph changed"); } this.sendActionToCanvas("setDirty", [true, true]); if (this.on_change) { this.on_change(this); } }; LGraph.prototype.setDirtyCanvas = function(fg, bg) { this.sendActionToCanvas("setDirty", [fg, bg]); }; /** * Destroys a link * @method removeLink * @param {Number} link_id */ LGraph.prototype.removeLink = function(link_id) { var link = this.links[link_id]; if (!link) { return; } var node = this.getNodeById(link.target_id); if (node) { node.disconnectInput(link.target_slot); } }; //save and recover app state *************************************** /** * Creates a Object containing all the info about this graph, it can be serialized * @method serialize * @return {Object} value of the node */ LGraph.prototype.serialize = function() { var nodes_info = []; for (var i = 0, l = this._nodes.length; i < l; ++i) { nodes_info.push(this._nodes[i].serialize()); } //pack link info into a non-verbose format var links = []; for (var i in this.links) { //links is an OBJECT var link = this.links[i]; if (!link.serialize) { //weird bug I havent solved yet console.warn( "weird LLink bug, link info is not a LLink but a regular object" ); var link2 = new LLink(); for (var j in link) { link2[j] = link[j]; } this.links[i] = link2; link = link2; } links.push(link.serialize()); } var groups_info = []; for (var i = 0; i < this._groups.length; ++i) { groups_info.push(this._groups[i].serialize()); } var data = { last_node_id: this.last_node_id, last_link_id: this.last_link_id, nodes: nodes_info, links: links, groups: groups_info, config: this.config, extra: this.extra, version: LiteGraph.VERSION }; if(this.onSerialize) this.onSerialize(data); return data; }; /** * Configure a graph from a JSON string * @method configure * @param {String} str configure a graph from a JSON string * @param {Boolean} returns if there was any error parsing */ LGraph.prototype.configure = function(data, keep_old) { if (!data) { return; } if (!keep_old) { this.clear(); } var nodes = data.nodes; //decode links info (they are very verbose) if (data.links && data.links.constructor === Array) { var links = []; for (var i = 0; i < data.links.length; ++i) { var link_data = data.links[i]; if(!link_data) //weird bug { console.warn("serialized graph link data contains errors, skipping."); continue; } var link = new LLink(); link.configure(link_data); links[link.id] = link; } data.links = links; } //copy all stored fields for (var i in data) { if(i == "nodes" || i == "groups" ) //links must be accepted continue; this[i] = data[i]; } var error = false; //create nodes this._nodes = []; if (nodes) { for (var i = 0, l = nodes.length; i < l; ++i) { var n_info = nodes[i]; //stored info var node = LiteGraph.createNode(n_info.type, n_info.title); if (!node) { if (LiteGraph.debug) { console.log( "Node not found or has errors: " + n_info.type ); } //in case of error we create a replacement node to avoid losing info node = new LGraphNode(); node.last_serialization = n_info; node.has_errors = true; error = true; //continue; } node.id = n_info.id; //id it or it will create a new id this.add(node, true); //add before configure, otherwise configure cannot create links } //configure nodes afterwards so they can reach each other for (var i = 0, l = nodes.length; i < l; ++i) { var n_info = nodes[i]; var node = this.getNodeById(n_info.id); if (node) { node.configure(n_info); } } } //groups this._groups.length = 0; if (data.groups) { for (var i = 0; i < data.groups.length; ++i) { var group = new LiteGraph.LGraphGroup(); group.configure(data.groups[i]); this.add(group); } } this.updateExecutionOrder(); this.extra = data.extra || {}; if(this.onConfigure) this.onConfigure(data); this._version++; this.setDirtyCanvas(true, true); return error; }; LGraph.prototype.load = function(url, callback) { var that = this; //from file if(url.constructor === File || url.constructor === Blob) { var reader = new FileReader(); reader.addEventListener('load', function(event) { var data = JSON.parse(event.target.result); that.configure(data); if(callback) callback(); }); reader.readAsText(url); return; } //is a string, then an URL var req = new XMLHttpRequest(); req.open("GET", url, true); req.send(null); req.onload = function(oEvent) { if (req.status !== 200) { console.error("Error loading graph:", req.status, req.response); return; } var data = JSON.parse( req.response ); that.configure(data); if(callback) callback(); }; req.onerror = function(err) { console.error("Error loading graph:", err); }; }; LGraph.prototype.onNodeTrace = function(node, msg, color) { //TODO }; //this is the class in charge of storing link information function LLink(id, type, origin_id, origin_slot, target_id, target_slot) { this.id = id; this.type = type; this.origin_id = origin_id; this.origin_slot = origin_slot; this.target_id = target_id; this.target_slot = target_slot; this._data = null; this._pos = new Float32Array(2); //center } LLink.prototype.configure = function(o) { if (o.constructor === Array) { this.id = o[0]; this.origin_id = o[1]; this.origin_slot = o[2]; this.target_id = o[3]; this.target_slot = o[4]; this.type = o[5]; } else { this.id = o.id; this.type = o.type; this.origin_id = o.origin_id; this.origin_slot = o.origin_slot; this.target_id = o.target_id; this.target_slot = o.target_slot; } }; LLink.prototype.serialize = function() { return [ this.id, this.origin_id, this.origin_slot, this.target_id, this.target_slot, this.type ]; }; LiteGraph.LLink = LLink; // ************************************************************* // Node CLASS ******* // ************************************************************* /* title: string pos: [x,y] size: [x,y] input|output: every connection + { name:string, type:string, pos: [x,y]=Optional, direction: "input"|"output", links: Array }); general properties: + clip_area: if you render outside the node, it will be clipped + unsafe_execution: not allowed for safe execution + skip_repeated_outputs: when adding new outputs, it wont show if there is one already connected + resizable: if set to false it wont be resizable with the mouse + horizontal: slots are distributed horizontally + widgets_start_y: widgets start at y distance from the top of the node flags object: + collapsed: if it is collapsed supported callbacks: + onAdded: when added to graph (warning: this is called BEFORE the node is configured when loading) + onRemoved: when removed from graph + onStart: when the graph starts playing + onStop: when the graph stops playing + onDrawForeground: render the inside widgets inside the node + onDrawBackground: render the background area inside the node (only in edit mode) + onMouseDown + onMouseMove + onMouseUp + onMouseEnter + onMouseLeave + onExecute: execute the node + onPropertyChanged: when a property is changed in the panel (return true to skip default behaviour) + onGetInputs: returns an array of possible inputs + onGetOutputs: returns an array of possible outputs + onBounding: in case this node has a bigger bounding than the node itself (the callback receives the bounding as [x,y,w,h]) + onDblClick: double clicked in the node + onInputDblClick: input slot double clicked (can be used to automatically create a node connected) + onOutputDblClick: output slot double clicked (can be used to automatically create a node connected) + onConfigure: called after the node has been configured + onSerialize: to add extra info when serializing (the callback receives the object that should be filled with the data) + onSelected + onDeselected + onDropItem : DOM item dropped over the node + onDropFile : file dropped over the node + onConnectInput : if returns false the incoming connection will be canceled + onConnectionsChange : a connection changed (new one or removed) (LiteGraph.INPUT or LiteGraph.OUTPUT, slot, true if connected, link_info, input_info ) + onAction: action slot triggered + getExtraMenuOptions: to add option to context menu */ /** * Base Class for all the node type classes * @class LGraphNode * @param {String} name a name for the node */ function LGraphNode(title) { this._ctor(title); } global.LGraphNode = LiteGraph.LGraphNode = LGraphNode; LGraphNode.prototype._ctor = function(title) { this.title = title || "Unnamed"; this.size = [LiteGraph.NODE_WIDTH, 60]; this.graph = null; this._pos = new Float32Array(10, 10); Object.defineProperty(this, "pos", { set: function(v) { if (!v || v.length < 2) { return; } this._pos[0] = v[0]; this._pos[1] = v[1]; }, get: function() { return this._pos; }, enumerable: true }); this.id = -1; //not know till not added this.type = null; //inputs available: array of inputs this.inputs = []; this.outputs = []; this.connections = []; //local data this.properties = {}; //for the values this.properties_info = []; //for the info this.flags = {}; }; /** * configure a node from an object containing the serialized info * @method configure */ LGraphNode.prototype.configure = function(info) { if (this.graph) { this.graph._version++; } for (var j in info) { if (j == "properties") { //i don't want to clone properties, I want to reuse the old container for (var k in info.properties) { this.properties[k] = info.properties[k]; if (this.onPropertyChanged) { this.onPropertyChanged( k, info.properties[k] ); } } continue; } if (info[j] == null) { continue; } else if (typeof info[j] == "object") { //object if (this[j] && this[j].configure) { this[j].configure(info[j]); } else { this[j] = LiteGraph.cloneObject(info[j], this[j]); } } //value else { this[j] = info[j]; } } if (!info.title) { this.title = this.constructor.title; } if (this.inputs) { for (var i = 0; i < this.inputs.length; ++i) { var input = this.inputs[i]; var link_info = this.graph ? this.graph.links[input.link] : null; if (this.onConnectionsChange) this.onConnectionsChange( LiteGraph.INPUT, i, true, link_info, input ); //link_info has been created now, so its updated if( this.onInputAdded ) this.onInputAdded(input); } } if (this.outputs) { for (var i = 0; i < this.outputs.length; ++i) { var output = this.outputs[i]; if (!output.links) { continue; } for (var j = 0; j < output.links.length; ++j) { var link_info = this.graph ? this.graph.links[output.links[j]] : null; if (this.onConnectionsChange) this.onConnectionsChange( LiteGraph.OUTPUT, i, true, link_info, output ); //link_info has been created now, so its updated } if( this.onOutputAdded ) this.onOutputAdded(output); } } if( this.widgets ) { for (var i = 0; i < this.widgets.length; ++i) { var w = this.widgets[i]; if(!w) continue; if(w.options && w.options.property && this.properties[ w.options.property ]) w.value = JSON.parse( JSON.stringify( this.properties[ w.options.property ] ) ); } if (info.widgets_values) { for (var i = 0; i < info.widgets_values.length; ++i) { if (this.widgets[i]) { this.widgets[i].value = info.widgets_values[i]; } } } } if (this.onConfigure) { this.onConfigure(info); } }; /** * serialize the content * @method serialize */ LGraphNode.prototype.serialize = function() { //create serialization object var o = { id: this.id, type: this.type, pos: this.pos, size: this.size, flags: LiteGraph.cloneObject(this.flags), order: this.order, mode: this.mode }; //special case for when there were errors if (this.constructor === LGraphNode && this.last_serialization) { return this.last_serialization; } if (this.inputs) { o.inputs = this.inputs; } if (this.outputs) { //clear outputs last data (because data in connections is never serialized but stored inside the outputs info) for (var i = 0; i < this.outputs.length; i++) { delete this.outputs[i]._data; } o.outputs = this.outputs; } if (this.title && this.title != this.constructor.title) { o.title = this.title; } if (this.properties) { o.properties = LiteGraph.cloneObject(this.properties); } if (this.widgets && this.serialize_widgets) { o.widgets_values = []; for (var i = 0; i < this.widgets.length; ++i) { if(this.widgets[i]) o.widgets_values[i] = this.widgets[i].value; else o.widgets_values[i] = null; } } if (!o.type) { o.type = this.constructor.type; } if (this.color) { o.color = this.color; } if (this.bgcolor) { o.bgcolor = this.bgcolor; } if (this.boxcolor) { o.boxcolor = this.boxcolor; } if (this.shape) { o.shape = this.shape; } if (this.onSerialize) { if (this.onSerialize(o)) { console.warn( "node onSerialize shouldnt return anything, data should be stored in the object pass in the first parameter" ); } } return o; }; /* Creates a clone of this node */ LGraphNode.prototype.clone = function() { var node = LiteGraph.createNode(this.type); if (!node) { return null; } //we clone it because serialize returns shared containers var data = LiteGraph.cloneObject(this.serialize()); //remove links if (data.inputs) { for (var i = 0; i < data.inputs.length; ++i) { data.inputs[i].link = null; } } if (data.outputs) { for (var i = 0; i < data.outputs.length; ++i) { if (data.outputs[i].links) { data.outputs[i].links.length = 0; } } } delete data["id"]; //remove links node.configure(data); return node; }; /** * serialize and stringify * @method toString */ LGraphNode.prototype.toString = function() { return JSON.stringify(this.serialize()); }; //LGraphNode.prototype.deserialize = function(info) {} //this cannot be done from within, must be done in LiteGraph /** * get the title string * @method getTitle */ LGraphNode.prototype.getTitle = function() { return this.title || this.constructor.title; }; /** * sets the value of a property * @method setProperty * @param {String} name * @param {*} value */ LGraphNode.prototype.setProperty = function(name, value) { if (!this.properties) { this.properties = {}; } if( value === this.properties[name] ) return; var prev_value = this.properties[name]; this.properties[name] = value; if (this.onPropertyChanged) { if( this.onPropertyChanged(name, value, prev_value) === false ) //abort change this.properties[name] = prev_value; } if(this.widgets) //widgets could be linked to properties for(var i = 0; i < this.widgets.length; ++i) { var w = this.widgets[i]; if(!w) continue; if(w.options.property == name) { w.value = value; break; } } }; // Execution ************************* /** * sets the output data * @method setOutputData * @param {number} slot * @param {*} data */ LGraphNode.prototype.setOutputData = function(slot, data) { if (!this.outputs) { return; } //this maybe slow and a niche case //if(slot && slot.constructor === String) // slot = this.findOutputSlot(slot); if (slot == -1 || slot >= this.outputs.length) { return; } var output_info = this.outputs[slot]; if (!output_info) { return; } //store data in the output itself in case we want to debug output_info._data = data; //if there are connections, pass the data to the connections if (this.outputs[slot].links) { for (var i = 0; i < this.outputs[slot].links.length; i++) { var link_id = this.outputs[slot].links[i]; var link = this.graph.links[link_id]; if(link) link.data = data; } } }; /** * sets the output data type, useful when you want to be able to overwrite the data type * @method setOutputDataType * @param {number} slot * @param {String} datatype */ LGraphNode.prototype.setOutputDataType = function(slot, type) { if (!this.outputs) { return; } if (slot == -1 || slot >= this.outputs.length) { return; } var output_info = this.outputs[slot]; if (!output_info) { return; } //store data in the output itself in case we want to debug output_info.type = type; //if there are connections, pass the data to the connections if (this.outputs[slot].links) { for (var i = 0; i < this.outputs[slot].links.length; i++) { var link_id = this.outputs[slot].links[i]; this.graph.links[link_id].type = type; } } }; /** * Retrieves the input data (data traveling through the connection) from one slot * @method getInputData * @param {number} slot * @param {boolean} force_update if set to true it will force the connected node of this slot to output data into this link * @return {*} data or if it is not connected returns undefined */ LGraphNode.prototype.getInputData = function(slot, force_update) { if (!this.inputs) { return; } //undefined; if (slot >= this.inputs.length || this.inputs[slot].link == null) { return; } var link_id = this.inputs[slot].link; var link = this.graph.links[link_id]; if (!link) { //bug: weird case but it happens sometimes return null; } if (!force_update) { return link.data; } //special case: used to extract data from the incoming connection before the graph has been executed var node = this.graph.getNodeById(link.origin_id); if (!node) { return link.data; } if (node.updateOutputData) { node.updateOutputData(link.origin_slot); } else if (node.onExecute) { node.onExecute(); } return link.data; }; /** * Retrieves the input data type (in case this supports multiple input types) * @method getInputDataType * @param {number} slot * @return {String} datatype in string format */ LGraphNode.prototype.getInputDataType = function(slot) { if (!this.inputs) { return null; } //undefined; if (slot >= this.inputs.length || this.inputs[slot].link == null) { return null; } var link_id = this.inputs[slot].link; var link = this.graph.links[link_id]; if (!link) { //bug: weird case but it happens sometimes return null; } var node = this.graph.getNodeById(link.origin_id); if (!node) { return link.type; } var output_info = node.outputs[link.origin_slot]; if (output_info) { return output_info.type; } return null; }; /** * Retrieves the input data from one slot using its name instead of slot number * @method getInputDataByName * @param {String} slot_name * @param {boolean} force_update if set to true it will force the connected node of this slot to output data into this link * @return {*} data or if it is not connected returns null */ LGraphNode.prototype.getInputDataByName = function( slot_name, force_update ) { var slot = this.findInputSlot(slot_name); if (slot == -1) { return null; } return this.getInputData(slot, force_update); }; /** * tells you if there is a connection in one input slot * @method isInputConnected * @param {number} slot * @return {boolean} */ LGraphNode.prototype.isInputConnected = function(slot) { if (!this.inputs) { return false; } return slot < this.inputs.length && this.inputs[slot].link != null; }; /** * tells you info about an input connection (which node, type, etc) * @method getInputInfo * @param {number} slot * @return {Object} object or null { link: id, name: string, type: string or 0 } */ LGraphNode.prototype.getInputInfo = function(slot) { if (!this.inputs) { return null; } if (slot < this.inputs.length) { return this.inputs[slot]; } return null; }; /** * Returns the link info in the connection of an input slot * @method getInputLink * @param {number} slot * @return {LLink} object or null */ LGraphNode.prototype.getInputLink = function(slot) { if (!this.inputs) { return null; } if (slot < this.inputs.length) { var slot_info = this.inputs[slot]; return this.graph.links[ slot_info.link ]; } return null; }; /** * returns the node connected in the input slot * @method getInputNode * @param {number} slot * @return {LGraphNode} node or null */ LGraphNode.prototype.getInputNode = function(slot) { if (!this.inputs) { return null; } if (slot >= this.inputs.length) { return null; } var input = this.inputs[slot]; if (!input || input.link === null) { return null; } var link_info = this.graph.links[input.link]; if (!link_info) { return null; } return this.graph.getNodeById(link_info.origin_id); }; /** * returns the value of an input with this name, otherwise checks if there is a property with that name * @method getInputOrProperty * @param {string} name * @return {*} value */ LGraphNode.prototype.getInputOrProperty = function(name) { if (!this.inputs || !this.inputs.length) { return this.properties ? this.properties[name] : null; } for (var i = 0, l = this.inputs.length; i < l; ++i) { var input_info = this.inputs[i]; if (name == input_info.name && input_info.link != null) { var link = this.graph.links[input_info.link]; if (link) { return link.data; } } } return this.properties[name]; }; /** * tells you the last output data that went in that slot * @method getOutputData * @param {number} slot * @return {Object} object or null */ LGraphNode.prototype.getOutputData = function(slot) { if (!this.outputs) { return null; } if (slot >= this.outputs.length) { return null; } var info = this.outputs[slot]; return info._data; }; /** * tells you info about an output connection (which node, type, etc) * @method getOutputInfo * @param {number} slot * @return {Object} object or null { name: string, type: string, links: [ ids of links in number ] } */ LGraphNode.prototype.getOutputInfo = function(slot) { if (!this.outputs) { return null; } if (slot < this.outputs.length) { return this.outputs[slot]; } return null; }; /** * tells you if there is a connection in one output slot * @method isOutputConnected * @param {number} slot * @return {boolean} */ LGraphNode.prototype.isOutputConnected = function(slot) { if (!this.outputs) { return false; } return ( slot < this.outputs.length && this.outputs[slot].links && this.outputs[slot].links.length ); }; /** * tells you if there is any connection in the output slots * @method isAnyOutputConnected * @return {boolean} */ LGraphNode.prototype.isAnyOutputConnected = function() { if (!this.outputs) { return false; } for (var i = 0; i < this.outputs.length; ++i) { if (this.outputs[i].links && this.outputs[i].links.length) { return true; } } return false; }; /** * retrieves all the nodes connected to this output slot * @method getOutputNodes * @param {number} slot * @return {array} */ LGraphNode.prototype.getOutputNodes = function(slot) { if (!this.outputs || this.outputs.length == 0) { return null; } if (slot >= this.outputs.length) { return null; } var output = this.outputs[slot]; if (!output.links || output.links.length == 0) { return null; } var r = []; for (var i = 0; i < output.links.length; i++) { var link_id = output.links[i]; var link = this.graph.links[link_id]; if (link) { var target_node = this.graph.getNodeById(link.target_id); if (target_node) { r.push(target_node); } } } return r; }; LGraphNode.prototype.addOnTriggerInput = function(){ var trigS = this.findInputSlot("onTrigger"); if (trigS == -1){ //!trigS || var input = this.addInput("onTrigger", LiteGraph.EVENT, {optional: true, nameLocked: true}); return this.findInputSlot("onTrigger"); } return trigS; } LGraphNode.prototype.addOnExecutedOutput = function(){ var trigS = this.findOutputSlot("onExecuted"); if (trigS == -1){ //!trigS || var output = this.addOutput("onExecuted", LiteGraph.ACTION, {optional: true, nameLocked: true}); return this.findOutputSlot("onExecuted"); } return trigS; } LGraphNode.prototype.onAfterExecuteNode = function(param, options){ var trigS = this.findOutputSlot("onExecuted"); if (trigS != -1){ //console.debug(this.id+":"+this.order+" triggering slot onAfterExecute"); //console.debug(param); //console.debug(options); this.triggerSlot(trigS, param, null, options); } } LGraphNode.prototype.changeMode = function(modeTo){ switch(modeTo){ case LiteGraph.ON_EVENT: // this.addOnExecutedOutput(); break; case LiteGraph.ON_TRIGGER: this.addOnTriggerInput(); this.addOnExecutedOutput(); break; case LiteGraph.NEVER: break; case LiteGraph.ALWAYS: break; case LiteGraph.ON_REQUEST: break; default: return false; break; } this.mode = modeTo; return true; }; /** * Triggers the node code execution, place a boolean/counter to mark the node as being executed * @method execute * @param {*} param * @param {*} options */ LGraphNode.prototype.doExecute = function(param, options) { options = options || {}; if (this.onExecute){ // enable this to give the event an ID if (!options.action_call) options.action_call = this.id+"_exec_"+Math.floor(Math.random()*9999); this.graph.nodes_executing[this.id] = true; //.push(this.id); this.onExecute(param, options); this.graph.nodes_executing[this.id] = false; //.pop(); // save execution/action ref this.exec_version = this.graph.iteration; if(options && options.action_call){ this.action_call = options.action_call; // if (param) this.graph.nodes_executedAction[this.id] = options.action_call; } } this.execute_triggered = 2; // the nFrames it will be used (-- each step), means "how old" is the event if(this.onAfterExecuteNode) this.onAfterExecuteNode(param, options); // callback }; /** * Triggers an action, wrapped by logics to control execution flow * @method actionDo * @param {String} action name * @param {*} param */ LGraphNode.prototype.actionDo = function(action, param, options) { options = options || {}; if (this.onAction){ // enable this to give the event an ID if (!options.action_call) options.action_call = this.id+"_"+(action?action:"action")+"_"+Math.floor(Math.random()*9999); this.graph.nodes_actioning[this.id] = (action?action:"actioning"); //.push(this.id); this.onAction(action, param, options); this.graph.nodes_actioning[this.id] = false; //.pop(); // save execution/action ref if(options && options.action_call){ this.action_call = options.action_call; // if (param) this.graph.nodes_executedAction[this.id] = options.action_call; } } this.action_triggered = 2; // the nFrames it will be used (-- each step), means "how old" is the event if(this.onAfterExecuteNode) this.onAfterExecuteNode(param, options); }; /** * Triggers an event in this node, this will trigger any output with the same name * @method trigger * @param {String} event name ( "on_play", ... ) if action is equivalent to false then the event is send to all * @param {*} param */ LGraphNode.prototype.trigger = function(action, param, options) { if (!this.outputs || !this.outputs.length) { return; } if (this.graph) this.graph._last_trigger_time = LiteGraph.getTime(); for (var i = 0; i < this.outputs.length; ++i) { var output = this.outputs[i]; if ( !output || output.type !== LiteGraph.EVENT || (action && output.name != action) ) continue; this.triggerSlot(i, param, null, options); } }; /** * Triggers a slot event in this node: cycle output slots and launch execute/action on connected nodes * @method triggerSlot * @param {Number} slot the index of the output slot * @param {*} param * @param {Number} link_id [optional] in case you want to trigger and specific output link in a slot */ LGraphNode.prototype.triggerSlot = function(slot, param, link_id, options) { options = options || {}; if (!this.outputs) { return; } if(slot == null) { console.error("slot must be a number"); return; } if(slot.constructor !== Number) console.warn("slot must be a number, use node.trigger('name') if you want to use a string"); var output = this.outputs[slot]; if (!output) { return; } var links = output.links; if (!links || !links.length) { return; } if (this.graph) { this.graph._last_trigger_time = LiteGraph.getTime(); } //for every link attached here for (var k = 0; k < links.length; ++k) { var id = links[k]; if (link_id != null && link_id != id) { //to skip links continue; } var link_info = this.graph.links[links[k]]; if (!link_info) { //not connected continue; } link_info._last_time = LiteGraph.getTime(); var node = this.graph.getNodeById(link_info.target_id); if (!node) { //node not found? continue; } //used to mark events in graph var target_connection = node.inputs[link_info.target_slot]; if (node.mode === LiteGraph.ON_TRIGGER) { // generate unique trigger ID if not present if (!options.action_call) options.action_call = this.id+"_trigg_"+Math.floor(Math.random()*9999); if (node.onExecute) { // -- wrapping node.onExecute(param); -- node.doExecute(param, options); } } else if (node.onAction) { // generate unique action ID if not present if (!options.action_call) options.action_call = this.id+"_act_"+Math.floor(Math.random()*9999); //pass the action name var target_connection = node.inputs[link_info.target_slot]; // wrap node.onAction(target_connection.name, param); node.actionDo(target_connection.name, param, options); } } }; /** * clears the trigger slot animation * @method clearTriggeredSlot * @param {Number} slot the index of the output slot * @param {Number} link_id [optional] in case you want to trigger and specific output link in a slot */ LGraphNode.prototype.clearTriggeredSlot = function(slot, link_id) { if (!this.outputs) { return; } var output = this.outputs[slot]; if (!output) { return; } var links = output.links; if (!links || !links.length) { return; } //for every link attached here for (var k = 0; k < links.length; ++k) { var id = links[k]; if (link_id != null && link_id != id) { //to skip links continue; } var link_info = this.graph.links[links[k]]; if (!link_info) { //not connected continue; } link_info._last_time = 0; } }; /** * changes node size and triggers callback * @method setSize * @param {vec2} size */ LGraphNode.prototype.setSize = function(size) { this.size = size; if(this.onResize) this.onResize(this.size); } /** * add a new property to this node * @method addProperty * @param {string} name * @param {*} default_value * @param {string} type string defining the output type ("vec3","number",...) * @param {Object} extra_info this can be used to have special properties of the property (like values, etc) */ LGraphNode.prototype.addProperty = function( name, default_value, type, extra_info ) { var o = { name: name, type: type, default_value: default_value }; if (extra_info) { for (var i in extra_info) { o[i] = extra_info[i]; } } if (!this.properties_info) { this.properties_info = []; } this.properties_info.push(o); if (!this.properties) { this.properties = {}; } this.properties[name] = default_value; return o; }; //connections /** * add a new output slot to use in this node * @method addOutput * @param {string} name * @param {string} type string defining the output type ("vec3","number",...) * @param {Object} extra_info this can be used to have special properties of an output (label, special color, position, etc) */ LGraphNode.prototype.addOutput = function(name, type, extra_info) { var output = { name: name, type: type, links: null }; if (extra_info) { for (var i in extra_info) { output[i] = extra_info[i]; } } if (!this.outputs) { this.outputs = []; } this.outputs.push(output); if (this.onOutputAdded) { this.onOutputAdded(output); } if (LiteGraph.auto_load_slot_types) LiteGraph.registerNodeAndSlotType(this,type,true); this.setSize( this.computeSize() ); this.setDirtyCanvas(true, true); return output; }; /** * add a new output slot to use in this node * @method addOutputs * @param {Array} array of triplets like [[name,type,extra_info],[...]] */ LGraphNode.prototype.addOutputs = function(array) { for (var i = 0; i < array.length; ++i) { var info = array[i]; var o = { name: info[0], type: info[1], link: null }; if (array[2]) { for (var j in info[2]) { o[j] = info[2][j]; } } if (!this.outputs) { this.outputs = []; } this.outputs.push(o); if (this.onOutputAdded) { this.onOutputAdded(o); } if (LiteGraph.auto_load_slot_types) LiteGraph.registerNodeAndSlotType(this,info[1],true); } this.setSize( this.computeSize() ); this.setDirtyCanvas(true, true); }; /** * remove an existing output slot * @method removeOutput * @param {number} slot */ LGraphNode.prototype.removeOutput = function(slot) { this.disconnectOutput(slot); this.outputs.splice(slot, 1); for (var i = slot; i < this.outputs.length; ++i) { if (!this.outputs[i] || !this.outputs[i].links) { continue; } var links = this.outputs[i].links; for (var j = 0; j < links.length; ++j) { var link = this.graph.links[links[j]]; if (!link) { continue; } link.origin_slot -= 1; } } this.setSize( this.computeSize() ); if (this.onOutputRemoved) { this.onOutputRemoved(slot); } this.setDirtyCanvas(true, true); }; /** * add a new input slot to use in this node * @method addInput * @param {string} name * @param {string} type string defining the input type ("vec3","number",...), it its a generic one use 0 * @param {Object} extra_info this can be used to have special properties of an input (label, color, position, etc) */ LGraphNode.prototype.addInput = function(name, type, extra_info) { type = type || 0; var input = { name: name, type: type, link: null }; if (extra_info) { for (var i in extra_info) { input[i] = extra_info[i]; } } if (!this.inputs) { this.inputs = []; } this.inputs.push(input); this.setSize( this.computeSize() ); if (this.onInputAdded) { this.onInputAdded(input); } LiteGraph.registerNodeAndSlotType(this,type); this.setDirtyCanvas(true, true); return input; }; /** * add several new input slots in this node * @method addInputs * @param {Array} array of triplets like [[name,type,extra_info],[...]] */ LGraphNode.prototype.addInputs = function(array) { for (var i = 0; i < array.length; ++i) { var info = array[i]; var o = { name: info[0], type: info[1], link: null }; if (array[2]) { for (var j in info[2]) { o[j] = info[2][j]; } } if (!this.inputs) { this.inputs = []; } this.inputs.push(o); if (this.onInputAdded) { this.onInputAdded(o); } LiteGraph.registerNodeAndSlotType(this,info[1]); } this.setSize( this.computeSize() ); this.setDirtyCanvas(true, true); }; /** * remove an existing input slot * @method removeInput * @param {number} slot */ LGraphNode.prototype.removeInput = function(slot) { this.disconnectInput(slot); var slot_info = this.inputs.splice(slot, 1); for (var i = slot; i < this.inputs.length; ++i) { if (!this.inputs[i]) { continue; } var link = this.graph.links[this.inputs[i].link]; if (!link) { continue; } link.target_slot -= 1; } this.setSize( this.computeSize() ); if (this.onInputRemoved) { this.onInputRemoved(slot, slot_info[0] ); } this.setDirtyCanvas(true, true); }; /** * add an special connection to this node (used for special kinds of graphs) * @method addConnection * @param {string} name * @param {string} type string defining the input type ("vec3","number",...) * @param {[x,y]} pos position of the connection inside the node * @param {string} direction if is input or output */ LGraphNode.prototype.addConnection = function(name, type, pos, direction) { var o = { name: name, type: type, pos: pos, direction: direction, links: null }; this.connections.push(o); return o; }; /** * computes the minimum size of a node according to its inputs and output slots * @method computeSize * @param {number} minHeight * @return {number} the total size */ LGraphNode.prototype.computeSize = function(out) { if (this.constructor.size) { return this.constructor.size.concat(); } var rows = Math.max( this.inputs ? this.inputs.length : 1, this.outputs ? this.outputs.length : 1 ); var size = out || new Float32Array([0, 0]); rows = Math.max(rows, 1); var font_size = LiteGraph.NODE_TEXT_SIZE; //although it should be graphcanvas.inner_text_font size var title_width = compute_text_size(this.title); var input_width = 0; var output_width = 0; if (this.inputs) { for (var i = 0, l = this.inputs.length; i < l; ++i) { var input = this.inputs[i]; var text = input.label || input.name || ""; var text_width = compute_text_size(text); if (input_width < text_width) { input_width = text_width; } } } if (this.outputs) { for (var i = 0, l = this.outputs.length; i < l; ++i) { var output = this.outputs[i]; var text = output.label || output.name || ""; var text_width = compute_text_size(text); if (output_width < text_width) { output_width = text_width; } } } size[0] = Math.max(input_width + output_width + 10, title_width); size[0] = Math.max(size[0], LiteGraph.NODE_WIDTH); if (this.widgets && this.widgets.length) { size[0] = Math.max(size[0], LiteGraph.NODE_WIDTH * 1.5); } size[1] = (this.constructor.slot_start_y || 0) + rows * LiteGraph.NODE_SLOT_HEIGHT; var widgets_height = 0; if (this.widgets && this.widgets.length) { for (var i = 0, l = this.widgets.length; i < l; ++i) { if (this.widgets[i].computeSize) widgets_height += this.widgets[i].computeSize(size[0])[1] + 4; else widgets_height += LiteGraph.NODE_WIDGET_HEIGHT + 4; } widgets_height += 8; } //compute height using widgets height if( this.widgets_up ) size[1] = Math.max( size[1], widgets_height ); else if( this.widgets_start_y != null ) size[1] = Math.max( size[1], widgets_height + this.widgets_start_y ); else size[1] += widgets_height; function compute_text_size(text) { if (!text) { return 0; } return font_size * text.length * 0.6; } if ( this.constructor.min_height && size[1] < this.constructor.min_height ) { size[1] = this.constructor.min_height; } size[1] += 6; //margin return size; }; /** * returns all the info available about a property of this node. * * @method getPropertyInfo * @param {String} property name of the property * @return {Object} the object with all the available info */ LGraphNode.prototype.getPropertyInfo = function( property ) { var info = null; //there are several ways to define info about a property //legacy mode if (this.properties_info) { for (var i = 0; i < this.properties_info.length; ++i) { if (this.properties_info[i].name == property) { info = this.properties_info[i]; break; } } } //litescene mode using the constructor if(this.constructor["@" + property]) info = this.constructor["@" + property]; if(this.constructor.widgets_info && this.constructor.widgets_info[property]) info = this.constructor.widgets_info[property]; //litescene mode using the constructor if (!info && this.onGetPropertyInfo) { info = this.onGetPropertyInfo(property); } if (!info) info = {}; if(!info.type) info.type = typeof this.properties[property]; if(info.widget == "combo") info.type = "enum"; return info; } /** * Defines a widget inside the node, it will be rendered on top of the node, you can control lots of properties * * @method addWidget * @param {String} type the widget type (could be "number","string","combo" * @param {String} name the text to show on the widget * @param {String} value the default value * @param {Function|String} callback function to call when it changes (optionally, it can be the name of the property to modify) * @param {Object} options the object that contains special properties of this widget * @return {Object} the created widget object */ LGraphNode.prototype.addWidget = function( type, name, value, callback, options ) { if (!this.widgets) { this.widgets = []; } if(!options && callback && callback.constructor === Object) { options = callback; callback = null; } if(options && options.constructor === String) //options can be the property name options = { property: options }; if(callback && callback.constructor === String) //callback can be the property name { if(!options) options = {}; options.property = callback; callback = null; } if(callback && callback.constructor !== Function) { console.warn("addWidget: callback must be a function"); callback = null; } var w = { type: type.toLowerCase(), name: name, value: value, callback: callback, options: options || {} }; if (w.options.y !== undefined) { w.y = w.options.y; } if (!callback && !w.options.callback && !w.options.property) { console.warn("LiteGraph addWidget(...) without a callback or property assigned"); } if (type == "combo" && !w.options.values) { throw "LiteGraph addWidget('combo',...) requires to pass values in options: { values:['red','blue'] }"; } this.widgets.push(w); this.setSize( this.computeSize() ); return w; }; LGraphNode.prototype.addCustomWidget = function(custom_widget) { if (!this.widgets) { this.widgets = []; } this.widgets.push(custom_widget); return custom_widget; }; /** * returns the bounding of the object, used for rendering purposes * bounding is: [topleft_cornerx, topleft_cornery, width, height] * @method getBounding * @return {Float32Array[4]} the total size */ LGraphNode.prototype.getBounding = function(out) { out = out || new Float32Array(4); out[0] = this.pos[0] - 4; out[1] = this.pos[1] - LiteGraph.NODE_TITLE_HEIGHT; out[2] = this.size[0] + 4; out[3] = this.flags.collapsed ? LiteGraph.NODE_TITLE_HEIGHT : this.size[1] + LiteGraph.NODE_TITLE_HEIGHT; if (this.onBounding) { this.onBounding(out); } return out; }; /** * checks if a point is inside the shape of a node * @method isPointInside * @param {number} x * @param {number} y * @return {boolean} */ LGraphNode.prototype.isPointInside = function(x, y, margin, skip_title) { margin = margin || 0; var margin_top = this.graph && this.graph.isLive() ? 0 : LiteGraph.NODE_TITLE_HEIGHT; if (skip_title) { margin_top = 0; } if (this.flags && this.flags.collapsed) { //if ( distance([x,y], [this.pos[0] + this.size[0]*0.5, this.pos[1] + this.size[1]*0.5]) < LiteGraph.NODE_COLLAPSED_RADIUS) if ( isInsideRectangle( x, y, this.pos[0] - margin, this.pos[1] - LiteGraph.NODE_TITLE_HEIGHT - margin, (this._collapsed_width || LiteGraph.NODE_COLLAPSED_WIDTH) + 2 * margin, LiteGraph.NODE_TITLE_HEIGHT + 2 * margin ) ) { return true; } } else if ( this.pos[0] - 4 - margin < x && this.pos[0] + this.size[0] + 4 + margin > x && this.pos[1] - margin_top - margin < y && this.pos[1] + this.size[1] + margin > y ) { return true; } return false; }; /** * checks if a point is inside a node slot, and returns info about which slot * @method getSlotInPosition * @param {number} x * @param {number} y * @return {Object} if found the object contains { input|output: slot object, slot: number, link_pos: [x,y] } */ LGraphNode.prototype.getSlotInPosition = function(x, y) { //search for inputs var link_pos = new Float32Array(2); if (this.inputs) { for (var i = 0, l = this.inputs.length; i < l; ++i) { var input = this.inputs[i]; this.getConnectionPos(true, i, link_pos); if ( isInsideRectangle( x, y, link_pos[0] - 10, link_pos[1] - 5, 20, 10 ) ) { return { input: input, slot: i, link_pos: link_pos }; } } } if (this.outputs) { for (var i = 0, l = this.outputs.length; i < l; ++i) { var output = this.outputs[i]; this.getConnectionPos(false, i, link_pos); if ( isInsideRectangle( x, y, link_pos[0] - 10, link_pos[1] - 5, 20, 10 ) ) { return { output: output, slot: i, link_pos: link_pos }; } } } return null; }; /** * returns the input slot with a given name (used for dynamic slots), -1 if not found * @method findInputSlot * @param {string} name the name of the slot * @param {boolean} returnObj if the obj itself wanted * @return {number_or_object} the slot (-1 if not found) */ LGraphNode.prototype.findInputSlot = function(name, returnObj) { if (!this.inputs) { return -1; } for (var i = 0, l = this.inputs.length; i < l; ++i) { if (name == this.inputs[i].name) { return !returnObj ? i : this.inputs[i]; } } return -1; }; /** * returns the output slot with a given name (used for dynamic slots), -1 if not found * @method findOutputSlot * @param {string} name the name of the slot * @param {boolean} returnObj if the obj itself wanted * @return {number_or_object} the slot (-1 if not found) */ LGraphNode.prototype.findOutputSlot = function(name, returnObj) { returnObj = returnObj || false; if (!this.outputs) { return -1; } for (var i = 0, l = this.outputs.length; i < l; ++i) { if (name == this.outputs[i].name) { return !returnObj ? i : this.outputs[i]; } } return -1; }; // TODO refactor: USE SINGLE findInput/findOutput functions! :: merge options /** * returns the first free input slot * @method findInputSlotFree * @param {object} options * @return {number_or_object} the slot (-1 if not found) */ LGraphNode.prototype.findInputSlotFree = function(optsIn) { var optsIn = optsIn || {}; var optsDef = {returnObj: false ,typesNotAccepted: [] }; var opts = Object.assign(optsDef,optsIn); if (!this.inputs) { return -1; } for (var i = 0, l = this.inputs.length; i < l; ++i) { if (this.inputs[i].link && this.inputs[i].link != null) { continue; } if (opts.typesNotAccepted && opts.typesNotAccepted.includes && opts.typesNotAccepted.includes(this.inputs[i].type)){ continue; } return !opts.returnObj ? i : this.inputs[i]; } return -1; }; /** * returns the first output slot free * @method findOutputSlotFree * @param {object} options * @return {number_or_object} the slot (-1 if not found) */ LGraphNode.prototype.findOutputSlotFree = function(optsIn) { var optsIn = optsIn || {}; var optsDef = { returnObj: false ,typesNotAccepted: [] }; var opts = Object.assign(optsDef,optsIn); if (!this.outputs) { return -1; } for (var i = 0, l = this.outputs.length; i < l; ++i) { if (this.outputs[i].links && this.outputs[i].links != null) { continue; } if (opts.typesNotAccepted && opts.typesNotAccepted.includes && opts.typesNotAccepted.includes(this.outputs[i].type)){ continue; } return !opts.returnObj ? i : this.outputs[i]; } return -1; }; /** * findSlotByType for INPUTS */ LGraphNode.prototype.findInputSlotByType = function(type, returnObj, preferFreeSlot, doNotUseOccupied) { return this.findSlotByType(true, type, returnObj, preferFreeSlot, doNotUseOccupied); }; /** * findSlotByType for OUTPUTS */ LGraphNode.prototype.findOutputSlotByType = function(type, returnObj, preferFreeSlot, doNotUseOccupied) { return this.findSlotByType(false, type, returnObj, preferFreeSlot, doNotUseOccupied); }; /** * returns the output (or input) slot with a given type, -1 if not found * @method findSlotByType * @param {boolean} input uise inputs instead of outputs * @param {string} type the type of the slot * @param {boolean} returnObj if the obj itself wanted * @param {boolean} preferFreeSlot if we want a free slot (if not found, will return the first of the type anyway) * @return {number_or_object} the slot (-1 if not found) */ LGraphNode.prototype.findSlotByType = function(input, type, returnObj, preferFreeSlot, doNotUseOccupied) { input = input || false; returnObj = returnObj || false; preferFreeSlot = preferFreeSlot || false; doNotUseOccupied = doNotUseOccupied || false; var aSlots = input ? this.inputs : this.outputs; if (!aSlots) { return -1; } // !! empty string type is considered 0, * !! if (type == "" || type == "*") type = 0; for (var i = 0, l = aSlots.length; i < l; ++i) { var tFound = false; var aSource = (type+"").toLowerCase().split(","); var aDest = aSlots[i].type=="0"||aSlots[i].type=="*"?"0":aSlots[i].type; aDest = (aDest+"").toLowerCase().split(","); for(var sI=0;sI= 0 && target_slot !== null){ //console.debug("CONNbyTYPE type "+target_slotType+" for "+target_slot) return this.connect(slot, target_node, target_slot); }else{ //console.log("type "+target_slotType+" not found or not free?") if (opts.createEventInCase && target_slotType == LiteGraph.EVENT){ // WILL CREATE THE onTrigger IN SLOT //console.debug("connect WILL CREATE THE onTrigger "+target_slotType+" to "+target_node); return this.connect(slot, target_node, -1); } // connect to the first general output slot if not found a specific type and if (opts.generalTypeInCase){ var target_slot = target_node.findInputSlotByType(0, false, true, true); //console.debug("connect TO a general type (*, 0), if not found the specific type ",target_slotType," to ",target_node,"RES_SLOT:",target_slot); if (target_slot >= 0){ return this.connect(slot, target_node, target_slot); } } // connect to the first free input slot if not found a specific type and this output is general if (opts.firstFreeIfOutputGeneralInCase && (target_slotType == 0 || target_slotType == "*" || target_slotType == "")){ var target_slot = target_node.findInputSlotFree({typesNotAccepted: [LiteGraph.EVENT] }); //console.debug("connect TO TheFirstFREE ",target_slotType," to ",target_node,"RES_SLOT:",target_slot); if (target_slot >= 0){ return this.connect(slot, target_node, target_slot); } } console.debug("no way to connect type: ",target_slotType," to targetNODE ",target_node); //TODO filter return null; } } /** * connect this node input to the output of another node BY TYPE * @method connectByType * @param {number_or_string} slot (could be the number of the slot or the string with the name of the slot) * @param {LGraphNode} node the target node * @param {string} target_type the output slot type of the target node * @return {Object} the link_info is created, otherwise null */ LGraphNode.prototype.connectByTypeOutput = function(slot, source_node, source_slotType, optsIn) { var optsIn = optsIn || {}; var optsDef = { createEventInCase: true ,firstFreeIfInputGeneralInCase: true ,generalTypeInCase: true }; var opts = Object.assign(optsDef,optsIn); if (source_node && source_node.constructor === Number) { source_node = this.graph.getNodeById(source_node); } var source_slot = source_node.findOutputSlotByType(source_slotType, false, true); if (source_slot >= 0 && source_slot !== null){ //console.debug("CONNbyTYPE OUT! type "+source_slotType+" for "+source_slot) return source_node.connect(source_slot, this, slot); }else{ // connect to the first general output slot if not found a specific type and if (opts.generalTypeInCase){ var source_slot = source_node.findOutputSlotByType(0, false, true, true); if (source_slot >= 0){ return source_node.connect(source_slot, this, slot); } } if (opts.createEventInCase && source_slotType == LiteGraph.EVENT){ // WILL CREATE THE onExecuted OUT SLOT if (LiteGraph.do_add_triggers_slots){ var source_slot = source_node.addOnExecutedOutput(); return source_node.connect(source_slot, this, slot); } } // connect to the first free output slot if not found a specific type and this input is general if (opts.firstFreeIfInputGeneralInCase && (source_slotType == 0 || source_slotType == "*" || source_slotType == "")){ var source_slot = source_node.findOutputSlotFree({typesNotAccepted: [LiteGraph.EVENT] }); if (source_slot >= 0){ return source_node.connect(source_slot, this, slot); } } console.debug("no way to connect byOUT type: ",source_slotType," to sourceNODE ",source_node); //TODO filter //console.log("type OUT! "+source_slotType+" not found or not free?") return null; } } /** * connect this node output to the input of another node * @method connect * @param {number_or_string} slot (could be the number of the slot or the string with the name of the slot) * @param {LGraphNode} node the target node * @param {number_or_string} target_slot the input slot of the target node (could be the number of the slot or the string with the name of the slot, or -1 to connect a trigger) * @return {Object} the link_info is created, otherwise null */ LGraphNode.prototype.connect = function(slot, target_node, target_slot) { target_slot = target_slot || 0; if (!this.graph) { //could be connected before adding it to a graph console.log( "Connect: Error, node doesn't belong to any graph. Nodes must be added first to a graph before connecting them." ); //due to link ids being associated with graphs return null; } //seek for the output slot if (slot.constructor === String) { slot = this.findOutputSlot(slot); if (slot == -1) { if (LiteGraph.debug) { console.log("Connect: Error, no slot of name " + slot); } return null; } } else if (!this.outputs || slot >= this.outputs.length) { if (LiteGraph.debug) { console.log("Connect: Error, slot number not found"); } return null; } if (target_node && target_node.constructor === Number) { target_node = this.graph.getNodeById(target_node); } if (!target_node) { throw "target node is null"; } //avoid loopback if (target_node == this) { return null; } //you can specify the slot by name if (target_slot.constructor === String) { target_slot = target_node.findInputSlot(target_slot); if (target_slot == -1) { if (LiteGraph.debug) { console.log( "Connect: Error, no slot of name " + target_slot ); } return null; } } else if (target_slot === LiteGraph.EVENT) { if (LiteGraph.do_add_triggers_slots){ //search for first slot with event? :: NO this is done outside //console.log("Connect: Creating triggerEvent"); // force mode target_node.changeMode(LiteGraph.ON_TRIGGER); target_slot = target_node.findInputSlot("onTrigger"); }else{ return null; // -- break -- } } else if ( !target_node.inputs || target_slot >= target_node.inputs.length ) { if (LiteGraph.debug) { console.log("Connect: Error, slot number not found"); } return null; } var changed = false; var input = target_node.inputs[target_slot]; var link_info = null; var output = this.outputs[slot]; if (!this.outputs[slot]){ /*console.debug("Invalid slot passed: "+slot); console.debug(this.outputs);*/ return null; } // allow target node to change slot if (target_node.onBeforeConnectInput) { // This way node can choose another slot (or make a new one?) target_slot = target_node.onBeforeConnectInput(target_slot); //callback } //check target_slot and check connection types if (target_slot===false || target_slot===null || !LiteGraph.isValidConnection(output.type, input.type)) { this.setDirtyCanvas(false, true); if(changed) this.graph.connectionChange(this, link_info); return null; }else{ //console.debug("valid connection",output.type, input.type); } //allows nodes to block connection, callback if (target_node.onConnectInput) { if ( target_node.onConnectInput(target_slot, output.type, output, this, slot) === false ) { return null; } } if (this.onConnectOutput) { // callback if ( this.onConnectOutput(slot, input.type, input, target_node, target_slot) === false ) { return null; } } //if there is something already plugged there, disconnect if (target_node.inputs[target_slot] && target_node.inputs[target_slot].link != null) { this.graph.beforeChange(); target_node.disconnectInput(target_slot, {doProcessChange: false}); changed = true; } if (output.links !== null && output.links.length){ switch(output.type){ case LiteGraph.EVENT: if (!LiteGraph.allow_multi_output_for_events){ this.graph.beforeChange(); this.disconnectOutput(slot, false, {doProcessChange: false}); // Input(target_slot, {doProcessChange: false}); changed = true; } break; default: break; } } //create link class link_info = new LLink( ++this.graph.last_link_id, input.type || output.type, this.id, slot, target_node.id, target_slot ); //add to graph links list this.graph.links[link_info.id] = link_info; //connect in output if (output.links == null) { output.links = []; } output.links.push(link_info.id); //connect in input target_node.inputs[target_slot].link = link_info.id; if (this.graph) { this.graph._version++; } if (this.onConnectionsChange) { this.onConnectionsChange( LiteGraph.OUTPUT, slot, true, link_info, output ); } //link_info has been created now, so its updated if (target_node.onConnectionsChange) { target_node.onConnectionsChange( LiteGraph.INPUT, target_slot, true, link_info, input ); } if (this.graph && this.graph.onNodeConnectionChange) { this.graph.onNodeConnectionChange( LiteGraph.INPUT, target_node, target_slot, this, slot ); this.graph.onNodeConnectionChange( LiteGraph.OUTPUT, this, slot, target_node, target_slot ); } this.setDirtyCanvas(false, true); this.graph.afterChange(); this.graph.connectionChange(this, link_info); return link_info; }; /** * disconnect one output to an specific node * @method disconnectOutput * @param {number_or_string} slot (could be the number of the slot or the string with the name of the slot) * @param {LGraphNode} target_node the target node to which this slot is connected [Optional, if not target_node is specified all nodes will be disconnected] * @return {boolean} if it was disconnected successfully */ LGraphNode.prototype.disconnectOutput = function(slot, target_node) { if (slot.constructor === String) { slot = this.findOutputSlot(slot); if (slot == -1) { if (LiteGraph.debug) { console.log("Connect: Error, no slot of name " + slot); } return false; } } else if (!this.outputs || slot >= this.outputs.length) { if (LiteGraph.debug) { console.log("Connect: Error, slot number not found"); } return false; } //get output slot var output = this.outputs[slot]; if (!output || !output.links || output.links.length == 0) { return false; } //one of the output links in this slot if (target_node) { if (target_node.constructor === Number) { target_node = this.graph.getNodeById(target_node); } if (!target_node) { throw "Target Node not found"; } for (var i = 0, l = output.links.length; i < l; i++) { var link_id = output.links[i]; var link_info = this.graph.links[link_id]; //is the link we are searching for... if (link_info.target_id == target_node.id) { output.links.splice(i, 1); //remove here var input = target_node.inputs[link_info.target_slot]; input.link = null; //remove there delete this.graph.links[link_id]; //remove the link from the links pool if (this.graph) { this.graph._version++; } if (target_node.onConnectionsChange) { target_node.onConnectionsChange( LiteGraph.INPUT, link_info.target_slot, false, link_info, input ); } //link_info hasn't been modified so its ok if (this.onConnectionsChange) { this.onConnectionsChange( LiteGraph.OUTPUT, slot, false, link_info, output ); } if (this.graph && this.graph.onNodeConnectionChange) { this.graph.onNodeConnectionChange( LiteGraph.OUTPUT, this, slot ); } if (this.graph && this.graph.onNodeConnectionChange) { this.graph.onNodeConnectionChange( LiteGraph.OUTPUT, this, slot ); this.graph.onNodeConnectionChange( LiteGraph.INPUT, target_node, link_info.target_slot ); } break; } } } //all the links in this output slot else { for (var i = 0, l = output.links.length; i < l; i++) { var link_id = output.links[i]; var link_info = this.graph.links[link_id]; if (!link_info) { //bug: it happens sometimes continue; } var target_node = this.graph.getNodeById(link_info.target_id); var input = null; if (this.graph) { this.graph._version++; } if (target_node) { input = target_node.inputs[link_info.target_slot]; input.link = null; //remove other side link if (target_node.onConnectionsChange) { target_node.onConnectionsChange( LiteGraph.INPUT, link_info.target_slot, false, link_info, input ); } //link_info hasn't been modified so its ok if (this.graph && this.graph.onNodeConnectionChange) { this.graph.onNodeConnectionChange( LiteGraph.INPUT, target_node, link_info.target_slot ); } } delete this.graph.links[link_id]; //remove the link from the links pool if (this.onConnectionsChange) { this.onConnectionsChange( LiteGraph.OUTPUT, slot, false, link_info, output ); } if (this.graph && this.graph.onNodeConnectionChange) { this.graph.onNodeConnectionChange( LiteGraph.OUTPUT, this, slot ); this.graph.onNodeConnectionChange( LiteGraph.INPUT, target_node, link_info.target_slot ); } } output.links = null; } this.setDirtyCanvas(false, true); this.graph.connectionChange(this); return true; }; /** * disconnect one input * @method disconnectInput * @param {number_or_string} slot (could be the number of the slot or the string with the name of the slot) * @return {boolean} if it was disconnected successfully */ LGraphNode.prototype.disconnectInput = function(slot) { //seek for the output slot if (slot.constructor === String) { slot = this.findInputSlot(slot); if (slot == -1) { if (LiteGraph.debug) { console.log("Connect: Error, no slot of name " + slot); } return false; } } else if (!this.inputs || slot >= this.inputs.length) { if (LiteGraph.debug) { console.log("Connect: Error, slot number not found"); } return false; } var input = this.inputs[slot]; if (!input) { return false; } var link_id = this.inputs[slot].link; if(link_id != null) { this.inputs[slot].link = null; //remove other side var link_info = this.graph.links[link_id]; if (link_info) { var target_node = this.graph.getNodeById(link_info.origin_id); if (!target_node) { return false; } var output = target_node.outputs[link_info.origin_slot]; if (!output || !output.links || output.links.length == 0) { return false; } //search in the inputs list for this link for (var i = 0, l = output.links.length; i < l; i++) { if (output.links[i] == link_id) { output.links.splice(i, 1); break; } } delete this.graph.links[link_id]; //remove from the pool if (this.graph) { this.graph._version++; } if (this.onConnectionsChange) { this.onConnectionsChange( LiteGraph.INPUT, slot, false, link_info, input ); } if (target_node.onConnectionsChange) { target_node.onConnectionsChange( LiteGraph.OUTPUT, i, false, link_info, output ); } if (this.graph && this.graph.onNodeConnectionChange) { this.graph.onNodeConnectionChange( LiteGraph.OUTPUT, target_node, i ); this.graph.onNodeConnectionChange(LiteGraph.INPUT, this, slot); } } } //link != null this.setDirtyCanvas(false, true); if(this.graph) this.graph.connectionChange(this); return true; }; /** * returns the center of a connection point in canvas coords * @method getConnectionPos * @param {boolean} is_input true if if a input slot, false if it is an output * @param {number_or_string} slot (could be the number of the slot or the string with the name of the slot) * @param {vec2} out [optional] a place to store the output, to free garbage * @return {[x,y]} the position **/ LGraphNode.prototype.getConnectionPos = function( is_input, slot_number, out ) { out = out || new Float32Array(2); var num_slots = 0; if (is_input && this.inputs) { num_slots = this.inputs.length; } if (!is_input && this.outputs) { num_slots = this.outputs.length; } var offset = LiteGraph.NODE_SLOT_HEIGHT * 0.5; if (this.flags.collapsed) { var w = this._collapsed_width || LiteGraph.NODE_COLLAPSED_WIDTH; if (this.horizontal) { out[0] = this.pos[0] + w * 0.5; if (is_input) { out[1] = this.pos[1] - LiteGraph.NODE_TITLE_HEIGHT; } else { out[1] = this.pos[1]; } } else { if (is_input) { out[0] = this.pos[0]; } else { out[0] = this.pos[0] + w; } out[1] = this.pos[1] - LiteGraph.NODE_TITLE_HEIGHT * 0.5; } return out; } //weird feature that never got finished if (is_input && slot_number == -1) { out[0] = this.pos[0] + LiteGraph.NODE_TITLE_HEIGHT * 0.5; out[1] = this.pos[1] + LiteGraph.NODE_TITLE_HEIGHT * 0.5; return out; } //hard-coded pos if ( is_input && num_slots > slot_number && this.inputs[slot_number].pos ) { out[0] = this.pos[0] + this.inputs[slot_number].pos[0]; out[1] = this.pos[1] + this.inputs[slot_number].pos[1]; return out; } else if ( !is_input && num_slots > slot_number && this.outputs[slot_number].pos ) { out[0] = this.pos[0] + this.outputs[slot_number].pos[0]; out[1] = this.pos[1] + this.outputs[slot_number].pos[1]; return out; } //horizontal distributed slots if (this.horizontal) { out[0] = this.pos[0] + (slot_number + 0.5) * (this.size[0] / num_slots); if (is_input) { out[1] = this.pos[1] - LiteGraph.NODE_TITLE_HEIGHT; } else { out[1] = this.pos[1] + this.size[1]; } return out; } //default vertical slots if (is_input) { out[0] = this.pos[0] + offset; } else { out[0] = this.pos[0] + this.size[0] + 1 - offset; } out[1] = this.pos[1] + (slot_number + 0.7) * LiteGraph.NODE_SLOT_HEIGHT + (this.constructor.slot_start_y || 0); return out; }; /* Force align to grid */ LGraphNode.prototype.alignToGrid = function() { this.pos[0] = LiteGraph.CANVAS_GRID_SIZE * Math.round(this.pos[0] / LiteGraph.CANVAS_GRID_SIZE); this.pos[1] = LiteGraph.CANVAS_GRID_SIZE * Math.round(this.pos[1] / LiteGraph.CANVAS_GRID_SIZE); }; /* Console output */ LGraphNode.prototype.trace = function(msg) { if (!this.console) { this.console = []; } this.console.push(msg); if (this.console.length > LGraphNode.MAX_CONSOLE) { this.console.shift(); } if(this.graph.onNodeTrace) this.graph.onNodeTrace(this, msg); }; /* Forces to redraw or the main canvas (LGraphNode) or the bg canvas (links) */ LGraphNode.prototype.setDirtyCanvas = function( dirty_foreground, dirty_background ) { if (!this.graph) { return; } this.graph.sendActionToCanvas("setDirty", [ dirty_foreground, dirty_background ]); }; LGraphNode.prototype.loadImage = function(url) { var img = new Image(); img.src = LiteGraph.node_images_path + url; img.ready = false; var that = this; img.onload = function() { this.ready = true; that.setDirtyCanvas(true); }; return img; }; //safe LGraphNode action execution (not sure if safe) /* LGraphNode.prototype.executeAction = function(action) { if(action == "") return false; if( action.indexOf(";") != -1 || action.indexOf("}") != -1) { this.trace("Error: Action contains unsafe characters"); return false; } var tokens = action.split("("); var func_name = tokens[0]; if( typeof(this[func_name]) != "function") { this.trace("Error: Action not found on node: " + func_name); return false; } var code = action; try { var _foo = eval; eval = null; (new Function("with(this) { " + code + "}")).call(this); eval = _foo; } catch (err) { this.trace("Error executing action {" + action + "} :" + err); return false; } return true; } */ /* Allows to get onMouseMove and onMouseUp events even if the mouse is out of focus */ LGraphNode.prototype.captureInput = function(v) { if (!this.graph || !this.graph.list_of_graphcanvas) { return; } var list = this.graph.list_of_graphcanvas; for (var i = 0; i < list.length; ++i) { var c = list[i]; //releasing somebody elses capture?! if (!v && c.node_capturing_input != this) { continue; } //change c.node_capturing_input = v ? this : null; } }; /** * Collapse the node to make it smaller on the canvas * @method collapse **/ LGraphNode.prototype.collapse = function(force) { this.graph._version++; if (this.constructor.collapsable === false && !force) { return; } if (!this.flags.collapsed) { this.flags.collapsed = true; } else { this.flags.collapsed = false; } this.setDirtyCanvas(true, true); }; /** * Forces the node to do not move or realign on Z * @method pin **/ LGraphNode.prototype.pin = function(v) { this.graph._version++; if (v === undefined) { this.flags.pinned = !this.flags.pinned; } else { this.flags.pinned = v; } }; LGraphNode.prototype.localToScreen = function(x, y, graphcanvas) { return [ (x + this.pos[0]) * graphcanvas.scale + graphcanvas.offset[0], (y + this.pos[1]) * graphcanvas.scale + graphcanvas.offset[1] ]; }; function LGraphGroup(title) { this._ctor(title); } global.LGraphGroup = LiteGraph.LGraphGroup = LGraphGroup; LGraphGroup.prototype._ctor = function(title) { this.title = title || "Group"; this.font_size = 24; this.color = LGraphCanvas.node_colors.pale_blue ? LGraphCanvas.node_colors.pale_blue.groupcolor : "#AAA"; this._bounding = new Float32Array([10, 10, 140, 80]); this._pos = this._bounding.subarray(0, 2); this._size = this._bounding.subarray(2, 4); this._nodes = []; this.graph = null; Object.defineProperty(this, "pos", { set: function(v) { if (!v || v.length < 2) { return; } this._pos[0] = v[0]; this._pos[1] = v[1]; }, get: function() { return this._pos; }, enumerable: true }); Object.defineProperty(this, "size", { set: function(v) { if (!v || v.length < 2) { return; } this._size[0] = Math.max(140, v[0]); this._size[1] = Math.max(80, v[1]); }, get: function() { return this._size; }, enumerable: true }); }; LGraphGroup.prototype.configure = function(o) { this.title = o.title; this._bounding.set(o.bounding); this.color = o.color; this.font = o.font; }; LGraphGroup.prototype.serialize = function() { var b = this._bounding; return { title: this.title, bounding: [ Math.round(b[0]), Math.round(b[1]), Math.round(b[2]), Math.round(b[3]) ], color: this.color, font: this.font }; }; LGraphGroup.prototype.move = function(deltax, deltay, ignore_nodes) { this._pos[0] += deltax; this._pos[1] += deltay; if (ignore_nodes) { return; } for (var i = 0; i < this._nodes.length; ++i) { var node = this._nodes[i]; node.pos[0] += deltax; node.pos[1] += deltay; } }; LGraphGroup.prototype.recomputeInsideNodes = function() { this._nodes.length = 0; var nodes = this.graph._nodes; var node_bounding = new Float32Array(4); for (var i = 0; i < nodes.length; ++i) { var node = nodes[i]; node.getBounding(node_bounding); if (!overlapBounding(this._bounding, node_bounding)) { continue; } //out of the visible area this._nodes.push(node); } }; LGraphGroup.prototype.isPointInside = LGraphNode.prototype.isPointInside; LGraphGroup.prototype.setDirtyCanvas = LGraphNode.prototype.setDirtyCanvas; //**************************************** //Scale and Offset function DragAndScale(element, skip_events) { this.offset = new Float32Array([0, 0]); this.scale = 1; this.max_scale = 10; this.min_scale = 0.1; this.onredraw = null; this.enabled = true; this.last_mouse = [0, 0]; this.element = null; this.visible_area = new Float32Array(4); if (element) { this.element = element; if (!skip_events) { this.bindEvents(element); } } } LiteGraph.DragAndScale = DragAndScale; DragAndScale.prototype.bindEvents = function(element) { this.last_mouse = new Float32Array(2); this._binded_mouse_callback = this.onMouse.bind(this); LiteGraph.pointerListenerAdd(element,"down", this._binded_mouse_callback); LiteGraph.pointerListenerAdd(element,"move", this._binded_mouse_callback); LiteGraph.pointerListenerAdd(element,"up", this._binded_mouse_callback); element.addEventListener( "mousewheel", this._binded_mouse_callback, false ); element.addEventListener("wheel", this._binded_mouse_callback, false); }; DragAndScale.prototype.computeVisibleArea = function( viewport ) { if (!this.element) { this.visible_area[0] = this.visible_area[1] = this.visible_area[2] = this.visible_area[3] = 0; return; } var width = this.element.width; var height = this.element.height; var startx = -this.offset[0]; var starty = -this.offset[1]; if( viewport ) { startx += viewport[0] / this.scale; starty += viewport[1] / this.scale; width = viewport[2]; height = viewport[3]; } var endx = startx + width / this.scale; var endy = starty + height / this.scale; this.visible_area[0] = startx; this.visible_area[1] = starty; this.visible_area[2] = endx - startx; this.visible_area[3] = endy - starty; }; DragAndScale.prototype.onMouse = function(e) { if (!this.enabled) { return; } var canvas = this.element; var rect = canvas.getBoundingClientRect(); var x = e.clientX - rect.left; var y = e.clientY - rect.top; e.canvasx = x; e.canvasy = y; e.dragging = this.dragging; var is_inside = !this.viewport || ( this.viewport && x >= this.viewport[0] && x < (this.viewport[0] + this.viewport[2]) && y >= this.viewport[1] && y < (this.viewport[1] + this.viewport[3]) ); //console.log("pointerevents: DragAndScale onMouse "+e.type+" "+is_inside); var ignore = false; if (this.onmouse) { ignore = this.onmouse(e); } if (e.type == LiteGraph.pointerevents_method+"down" && is_inside) { this.dragging = true; LiteGraph.pointerListenerRemove(canvas,"move",this._binded_mouse_callback); LiteGraph.pointerListenerAdd(document,"move",this._binded_mouse_callback); LiteGraph.pointerListenerAdd(document,"up",this._binded_mouse_callback); } else if (e.type == LiteGraph.pointerevents_method+"move") { if (!ignore) { var deltax = x - this.last_mouse[0]; var deltay = y - this.last_mouse[1]; if (this.dragging) { this.mouseDrag(deltax, deltay); } } } else if (e.type == LiteGraph.pointerevents_method+"up") { this.dragging = false; LiteGraph.pointerListenerRemove(document,"move",this._binded_mouse_callback); LiteGraph.pointerListenerRemove(document,"up",this._binded_mouse_callback); LiteGraph.pointerListenerAdd(canvas,"move",this._binded_mouse_callback); } else if ( is_inside && (e.type == "mousewheel" || e.type == "wheel" || e.type == "DOMMouseScroll") ) { e.eventType = "mousewheel"; if (e.type == "wheel") { e.wheel = -e.deltaY; } else { e.wheel = e.wheelDeltaY != null ? e.wheelDeltaY : e.detail * -60; } //from stack overflow e.delta = e.wheelDelta ? e.wheelDelta / 40 : e.deltaY ? -e.deltaY / 3 : 0; this.changeDeltaScale(1.0 + e.delta * 0.05); } this.last_mouse[0] = x; this.last_mouse[1] = y; if(is_inside) { e.preventDefault(); e.stopPropagation(); return false; } }; DragAndScale.prototype.toCanvasContext = function(ctx) { ctx.scale(this.scale, this.scale); ctx.translate(this.offset[0], this.offset[1]); }; DragAndScale.prototype.convertOffsetToCanvas = function(pos) { //return [pos[0] / this.scale - this.offset[0], pos[1] / this.scale - this.offset[1]]; return [ (pos[0] + this.offset[0]) * this.scale, (pos[1] + this.offset[1]) * this.scale ]; }; DragAndScale.prototype.convertCanvasToOffset = function(pos, out) { out = out || [0, 0]; out[0] = pos[0] / this.scale - this.offset[0]; out[1] = pos[1] / this.scale - this.offset[1]; return out; }; DragAndScale.prototype.mouseDrag = function(x, y) { this.offset[0] += x / this.scale; this.offset[1] += y / this.scale; if (this.onredraw) { this.onredraw(this); } }; DragAndScale.prototype.changeScale = function(value, zooming_center) { if (value < this.min_scale) { value = this.min_scale; } else if (value > this.max_scale) { value = this.max_scale; } if (value == this.scale) { return; } if (!this.element) { return; } var rect = this.element.getBoundingClientRect(); if (!rect) { return; } zooming_center = zooming_center || [ rect.width * 0.5, rect.height * 0.5 ]; var center = this.convertCanvasToOffset(zooming_center); this.scale = value; if (Math.abs(this.scale - 1) < 0.01) { this.scale = 1; } var new_center = this.convertCanvasToOffset(zooming_center); var delta_offset = [ new_center[0] - center[0], new_center[1] - center[1] ]; this.offset[0] += delta_offset[0]; this.offset[1] += delta_offset[1]; if (this.onredraw) { this.onredraw(this); } }; DragAndScale.prototype.changeDeltaScale = function(value, zooming_center) { this.changeScale(this.scale * value, zooming_center); }; DragAndScale.prototype.reset = function() { this.scale = 1; this.offset[0] = 0; this.offset[1] = 0; }; //********************************************************************************* // LGraphCanvas: LGraph renderer CLASS //********************************************************************************* /** * This class is in charge of rendering one graph inside a canvas. And provides all the interaction required. * Valid callbacks are: onNodeSelected, onNodeDeselected, onShowNodePanel, onNodeDblClicked * * @class LGraphCanvas * @constructor * @param {HTMLCanvas} canvas the canvas where you want to render (it accepts a selector in string format or the canvas element itself) * @param {LGraph} graph [optional] * @param {Object} options [optional] { skip_rendering, autoresize, viewport } */ function LGraphCanvas(canvas, graph, options) { this.options = options = options || {}; //if(graph === undefined) // throw ("No graph assigned"); this.background_image = LGraphCanvas.DEFAULT_BACKGROUND_IMAGE; if (canvas && canvas.constructor === String) { canvas = document.querySelector(canvas); } this.ds = new DragAndScale(); this.zoom_modify_alpha = true; //otherwise it generates ugly patterns when scaling down too much this.title_text_font = "" + LiteGraph.NODE_TEXT_SIZE + "px Arial"; this.inner_text_font = "normal " + LiteGraph.NODE_SUBTEXT_SIZE + "px Arial"; this.node_title_color = LiteGraph.NODE_TITLE_COLOR; this.default_link_color = LiteGraph.LINK_COLOR; this.default_connection_color = { input_off: "#778", input_on: "#7F7", //"#BBD" output_off: "#778", output_on: "#7F7" //"#BBD" }; this.default_connection_color_byType = { /*number: "#7F7", string: "#77F", boolean: "#F77",*/ } this.default_connection_color_byTypeOff = { /*number: "#474", string: "#447", boolean: "#744",*/ }; this.highquality_render = true; this.use_gradients = false; //set to true to render titlebar with gradients this.editor_alpha = 1; //used for transition this.pause_rendering = false; this.clear_background = true; this.clear_background_color = "#222"; this.read_only = false; //if set to true users cannot modify the graph this.render_only_selected = true; this.live_mode = false; this.show_info = true; this.allow_dragcanvas = true; this.allow_dragnodes = true; this.allow_interaction = true; //allow to control widgets, buttons, collapse, etc this.multi_select = false; //allow selecting multi nodes without pressing extra keys this.allow_searchbox = true; this.allow_reconnect_links = true; //allows to change a connection with having to redo it again this.align_to_grid = false; //snap to grid this.drag_mode = false; this.dragging_rectangle = null; this.filter = null; //allows to filter to only accept some type of nodes in a graph this.set_canvas_dirty_on_mouse_event = true; //forces to redraw the canvas if the mouse does anything this.always_render_background = false; this.render_shadows = true; this.render_canvas_border = true; this.render_connections_shadows = false; //too much cpu this.render_connections_border = true; this.render_curved_connections = false; this.render_connection_arrows = false; this.render_collapsed_slots = true; this.render_execution_order = false; this.render_title_colored = true; this.render_link_tooltip = true; this.links_render_mode = LiteGraph.SPLINE_LINK; this.mouse = [0, 0]; //mouse in canvas coordinates, where 0,0 is the top-left corner of the blue rectangle this.graph_mouse = [0, 0]; //mouse in graph coordinates, where 0,0 is the top-left corner of the blue rectangle this.canvas_mouse = this.graph_mouse; //LEGACY: REMOVE THIS, USE GRAPH_MOUSE INSTEAD //to personalize the search box this.onSearchBox = null; this.onSearchBoxSelection = null; //callbacks this.onMouse = null; this.onDrawBackground = null; //to render background objects (behind nodes and connections) in the canvas affected by transform this.onDrawForeground = null; //to render foreground objects (above nodes and connections) in the canvas affected by transform this.onDrawOverlay = null; //to render foreground objects not affected by transform (for GUIs) this.onDrawLinkTooltip = null; //called when rendering a tooltip this.onNodeMoved = null; //called after moving a node this.onSelectionChange = null; //called if the selection changes this.onConnectingChange = null; //called before any link changes this.onBeforeChange = null; //called before modifying the graph this.onAfterChange = null; //called after modifying the graph this.connections_width = 3; this.round_radius = 8; this.current_node = null; this.node_widget = null; //used for widgets this.over_link_center = null; this.last_mouse_position = [0, 0]; this.visible_area = this.ds.visible_area; this.visible_links = []; this.viewport = options.viewport || null; //to constraint render area to a portion of the canvas //link canvas and graph if (graph) { graph.attachCanvas(this); } this.setCanvas(canvas,options.skip_events); this.clear(); if (!options.skip_render) { this.startRendering(); } this.autoresize = options.autoresize; } global.LGraphCanvas = LiteGraph.LGraphCanvas = LGraphCanvas; LGraphCanvas.DEFAULT_BACKGROUND_IMAGE = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAIAAAD/gAIDAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAQBJREFUeNrs1rEKwjAUhlETUkj3vP9rdmr1Ysammk2w5wdxuLgcMHyptfawuZX4pJSWZTnfnu/lnIe/jNNxHHGNn//HNbbv+4dr6V+11uF527arU7+u63qfa/bnmh8sWLBgwYJlqRf8MEptXPBXJXa37BSl3ixYsGDBMliwFLyCV/DeLIMFCxYsWLBMwSt4Be/NggXLYMGCBUvBK3iNruC9WbBgwYJlsGApeAWv4L1ZBgsWLFiwYJmCV/AK3psFC5bBggULloJX8BpdwXuzYMGCBctgwVLwCl7Be7MMFixYsGDBsu8FH1FaSmExVfAxBa/gvVmwYMGCZbBg/W4vAQYA5tRF9QYlv/QAAAAASUVORK5CYII="; LGraphCanvas.link_type_colors = { "-1": LiteGraph.EVENT_LINK_COLOR, number: "#AAA", node: "#DCA" }; LGraphCanvas.gradients = {}; //cache of gradients /** * clears all the data inside * * @method clear */ LGraphCanvas.prototype.clear = function() { this.frame = 0; this.last_draw_time = 0; this.render_time = 0; this.fps = 0; //this.scale = 1; //this.offset = [0,0]; this.dragging_rectangle = null; this.selected_nodes = {}; this.selected_group = null; this.visible_nodes = []; this.node_dragged = null; this.node_over = null; this.node_capturing_input = null; this.connecting_node = null; this.highlighted_links = {}; this.dragging_canvas = false; this.dirty_canvas = true; this.dirty_bgcanvas = true; this.dirty_area = null; this.node_in_panel = null; this.node_widget = null; this.last_mouse = [0, 0]; this.last_mouseclick = 0; this.pointer_is_down = false; this.pointer_is_double = false; this.visible_area.set([0, 0, 0, 0]); if (this.onClear) { this.onClear(); } }; /** * assigns a graph, you can reassign graphs to the same canvas * * @method setGraph * @param {LGraph} graph */ LGraphCanvas.prototype.setGraph = function(graph, skip_clear) { if (this.graph == graph) { return; } if (!skip_clear) { this.clear(); } if (!graph && this.graph) { this.graph.detachCanvas(this); return; } graph.attachCanvas(this); //remove the graph stack in case a subgraph was open if (this._graph_stack) this._graph_stack = null; this.setDirty(true, true); }; /** * returns the top level graph (in case there are subgraphs open on the canvas) * * @method getTopGraph * @return {LGraph} graph */ LGraphCanvas.prototype.getTopGraph = function() { if(this._graph_stack.length) return this._graph_stack[0]; return this.graph; } /** * opens a graph contained inside a node in the current graph * * @method openSubgraph * @param {LGraph} graph */ LGraphCanvas.prototype.openSubgraph = function(graph) { if (!graph) { throw "graph cannot be null"; } if (this.graph == graph) { throw "graph cannot be the same"; } this.clear(); if (this.graph) { if (!this._graph_stack) { this._graph_stack = []; } this._graph_stack.push(this.graph); } graph.attachCanvas(this); this.checkPanels(); this.setDirty(true, true); }; /** * closes a subgraph contained inside a node * * @method closeSubgraph * @param {LGraph} assigns a graph */ LGraphCanvas.prototype.closeSubgraph = function() { if (!this._graph_stack || this._graph_stack.length == 0) { return; } var subgraph_node = this.graph._subgraph_node; var graph = this._graph_stack.pop(); this.selected_nodes = {}; this.highlighted_links = {}; graph.attachCanvas(this); this.setDirty(true, true); if (subgraph_node) { this.centerOnNode(subgraph_node); this.selectNodes([subgraph_node]); } // when close sub graph back to offset [0, 0] scale 1 this.ds.offset = [0, 0] this.ds.scale = 1 }; /** * returns the visually active graph (in case there are more in the stack) * @method getCurrentGraph * @return {LGraph} the active graph */ LGraphCanvas.prototype.getCurrentGraph = function() { return this.graph; }; /** * assigns a canvas * * @method setCanvas * @param {Canvas} assigns a canvas (also accepts the ID of the element (not a selector) */ LGraphCanvas.prototype.setCanvas = function(canvas, skip_events) { var that = this; if (canvas) { if (canvas.constructor === String) { canvas = document.getElementById(canvas); if (!canvas) { throw "Error creating LiteGraph canvas: Canvas not found"; } } } if (canvas === this.canvas) { return; } if (!canvas && this.canvas) { //maybe detach events from old_canvas if (!skip_events) { this.unbindEvents(); } } this.canvas = canvas; this.ds.element = canvas; if (!canvas) { return; } //this.canvas.tabindex = "1000"; canvas.className += " lgraphcanvas"; canvas.data = this; canvas.tabindex = "1"; //to allow key events //bg canvas: used for non changing stuff this.bgcanvas = null; if (!this.bgcanvas) { this.bgcanvas = document.createElement("canvas"); this.bgcanvas.width = this.canvas.width; this.bgcanvas.height = this.canvas.height; } if (canvas.getContext == null) { if (canvas.localName != "canvas") { throw "Element supplied for LGraphCanvas must be a element, you passed a " + canvas.localName; } throw "This browser doesn't support Canvas"; } var ctx = (this.ctx = canvas.getContext("2d")); if (ctx == null) { if (!canvas.webgl_enabled) { console.warn( "This canvas seems to be WebGL, enabling WebGL renderer" ); } this.enableWebGL(); } //input: (move and up could be unbinded) // why here? this._mousemove_callback = this.processMouseMove.bind(this); // why here? this._mouseup_callback = this.processMouseUp.bind(this); if (!skip_events) { this.bindEvents(); } }; //used in some events to capture them LGraphCanvas.prototype._doNothing = function doNothing(e) { //console.log("pointerevents: _doNothing "+e.type); e.preventDefault(); return false; }; LGraphCanvas.prototype._doReturnTrue = function doNothing(e) { e.preventDefault(); return true; }; /** * binds mouse, keyboard, touch and drag events to the canvas * @method bindEvents **/ LGraphCanvas.prototype.bindEvents = function() { if (this._events_binded) { console.warn("LGraphCanvas: events already binded"); return; } //console.log("pointerevents: bindEvents"); var canvas = this.canvas; var ref_window = this.getCanvasWindow(); var document = ref_window.document; //hack used when moving canvas between windows this._mousedown_callback = this.processMouseDown.bind(this); this._mousewheel_callback = this.processMouseWheel.bind(this); // why mousemove and mouseup were not binded here? this._mousemove_callback = this.processMouseMove.bind(this); this._mouseup_callback = this.processMouseUp.bind(this); //touch events -- TODO IMPLEMENT //this._touch_callback = this.touchHandler.bind(this); LiteGraph.pointerListenerAdd(canvas,"down", this._mousedown_callback, true); //down do not need to store the binded canvas.addEventListener("mousewheel", this._mousewheel_callback, false); LiteGraph.pointerListenerAdd(canvas,"up", this._mouseup_callback, true); // CHECK: ??? binded or not LiteGraph.pointerListenerAdd(canvas,"move", this._mousemove_callback); canvas.addEventListener("contextmenu", this._doNothing); canvas.addEventListener( "DOMMouseScroll", this._mousewheel_callback, false ); //touch events -- THIS WAY DOES NOT WORK, finish implementing pointerevents, than clean the touchevents /*if( 'touchstart' in document.documentElement ) { canvas.addEventListener("touchstart", this._touch_callback, true); canvas.addEventListener("touchmove", this._touch_callback, true); canvas.addEventListener("touchend", this._touch_callback, true); canvas.addEventListener("touchcancel", this._touch_callback, true); }*/ //Keyboard ****************** this._key_callback = this.processKey.bind(this); canvas.addEventListener("keydown", this._key_callback, true); document.addEventListener("keyup", this._key_callback, true); //in document, otherwise it doesn't fire keyup //Dropping Stuff over nodes ************************************ this._ondrop_callback = this.processDrop.bind(this); canvas.addEventListener("dragover", this._doNothing, false); canvas.addEventListener("dragend", this._doNothing, false); canvas.addEventListener("drop", this._ondrop_callback, false); canvas.addEventListener("dragenter", this._doReturnTrue, false); this._events_binded = true; }; /** * unbinds mouse events from the canvas * @method unbindEvents **/ LGraphCanvas.prototype.unbindEvents = function() { if (!this._events_binded) { console.warn("LGraphCanvas: no events binded"); return; } //console.log("pointerevents: unbindEvents"); var ref_window = this.getCanvasWindow(); var document = ref_window.document; LiteGraph.pointerListenerRemove(this.canvas,"move", this._mousedown_callback); LiteGraph.pointerListenerRemove(this.canvas,"up", this._mousedown_callback); LiteGraph.pointerListenerRemove(this.canvas,"down", this._mousedown_callback); this.canvas.removeEventListener( "mousewheel", this._mousewheel_callback ); this.canvas.removeEventListener( "DOMMouseScroll", this._mousewheel_callback ); this.canvas.removeEventListener("keydown", this._key_callback); document.removeEventListener("keyup", this._key_callback); this.canvas.removeEventListener("contextmenu", this._doNothing); this.canvas.removeEventListener("drop", this._ondrop_callback); this.canvas.removeEventListener("dragenter", this._doReturnTrue); //touch events -- THIS WAY DOES NOT WORK, finish implementing pointerevents, than clean the touchevents /*this.canvas.removeEventListener("touchstart", this._touch_callback ); this.canvas.removeEventListener("touchmove", this._touch_callback ); this.canvas.removeEventListener("touchend", this._touch_callback ); this.canvas.removeEventListener("touchcancel", this._touch_callback );*/ this._mousedown_callback = null; this._mousewheel_callback = null; this._key_callback = null; this._ondrop_callback = null; this._events_binded = false; }; LGraphCanvas.getFileExtension = function(url) { var question = url.indexOf("?"); if (question != -1) { url = url.substr(0, question); } var point = url.lastIndexOf("."); if (point == -1) { return ""; } return url.substr(point + 1).toLowerCase(); }; /** * this function allows to render the canvas using WebGL instead of Canvas2D * this is useful if you plant to render 3D objects inside your nodes, it uses litegl.js for webgl and canvas2DtoWebGL to emulate the Canvas2D calls in webGL * @method enableWebGL **/ LGraphCanvas.prototype.enableWebGL = function() { if (typeof GL === undefined) { throw "litegl.js must be included to use a WebGL canvas"; } if (typeof enableWebGLCanvas === undefined) { throw "webglCanvas.js must be included to use this feature"; } this.gl = this.ctx = enableWebGLCanvas(this.canvas); this.ctx.webgl = true; this.bgcanvas = this.canvas; this.bgctx = this.gl; this.canvas.webgl_enabled = true; /* GL.create({ canvas: this.bgcanvas }); this.bgctx = enableWebGLCanvas( this.bgcanvas ); window.gl = this.gl; */ }; /** * marks as dirty the canvas, this way it will be rendered again * * @class LGraphCanvas * @method setDirty * @param {bool} fgcanvas if the foreground canvas is dirty (the one containing the nodes) * @param {bool} bgcanvas if the background canvas is dirty (the one containing the wires) */ LGraphCanvas.prototype.setDirty = function(fgcanvas, bgcanvas) { if (fgcanvas) { this.dirty_canvas = true; } if (bgcanvas) { this.dirty_bgcanvas = true; } }; /** * Used to attach the canvas in a popup * * @method getCanvasWindow * @return {window} returns the window where the canvas is attached (the DOM root node) */ LGraphCanvas.prototype.getCanvasWindow = function() { if (!this.canvas) { return window; } var doc = this.canvas.ownerDocument; return doc.defaultView || doc.parentWindow; }; /** * starts rendering the content of the canvas when needed * * @method startRendering */ LGraphCanvas.prototype.startRendering = function() { if (this.is_rendering) { return; } //already rendering this.is_rendering = true; renderFrame.call(this); function renderFrame() { if (!this.pause_rendering) { this.draw(); } var window = this.getCanvasWindow(); if (this.is_rendering) { window.requestAnimationFrame(renderFrame.bind(this)); } } }; /** * stops rendering the content of the canvas (to save resources) * * @method stopRendering */ LGraphCanvas.prototype.stopRendering = function() { this.is_rendering = false; /* if(this.rendering_timer_id) { clearInterval(this.rendering_timer_id); this.rendering_timer_id = null; } */ }; /* LiteGraphCanvas input */ //used to block future mouse events (because of im gui) LGraphCanvas.prototype.blockClick = function() { this.block_click = true; this.last_mouseclick = 0; } LGraphCanvas.prototype.processMouseDown = function(e) { if( this.set_canvas_dirty_on_mouse_event ) this.dirty_canvas = true; if (!this.graph) { return; } this.adjustMouseEvent(e); var ref_window = this.getCanvasWindow(); var document = ref_window.document; LGraphCanvas.active_canvas = this; var that = this; var x = e.clientX; var y = e.clientY; //console.log(y,this.viewport); //console.log("pointerevents: processMouseDown pointerId:"+e.pointerId+" which:"+e.which+" isPrimary:"+e.isPrimary+" :: x y "+x+" "+y); this.ds.viewport = this.viewport; var is_inside = !this.viewport || ( this.viewport && x >= this.viewport[0] && x < (this.viewport[0] + this.viewport[2]) && y >= this.viewport[1] && y < (this.viewport[1] + this.viewport[3]) ); //move mouse move event to the window in case it drags outside of the canvas if(!this.options.skip_events) { LiteGraph.pointerListenerRemove(this.canvas,"move", this._mousemove_callback); LiteGraph.pointerListenerAdd(ref_window.document,"move", this._mousemove_callback,true); //catch for the entire window LiteGraph.pointerListenerAdd(ref_window.document,"up", this._mouseup_callback,true); } if(!is_inside){ return; } var node = this.graph.getNodeOnPos( e.canvasX, e.canvasY, this.visible_nodes, 5 ); var skip_dragging = false; var skip_action = false; var now = LiteGraph.getTime(); var is_primary = (e.isPrimary === undefined || !e.isPrimary); var is_double_click = (now - this.last_mouseclick < 300); this.mouse[0] = e.clientX; this.mouse[1] = e.clientY; this.graph_mouse[0] = e.canvasX; this.graph_mouse[1] = e.canvasY; this.last_click_position = [this.mouse[0],this.mouse[1]]; if (this.pointer_is_down && is_primary ){ this.pointer_is_double = true; //console.log("pointerevents: pointer_is_double start"); }else{ this.pointer_is_double = false; } this.pointer_is_down = true; this.canvas.focus(); LiteGraph.closeAllContextMenus(ref_window); if (this.onMouse) { if (this.onMouse(e) == true) return; } //left button mouse / single finger if (e.which == 1 && !this.pointer_is_double) { if (e.ctrlKey) { this.dragging_rectangle = new Float32Array(4); this.dragging_rectangle[0] = e.canvasX; this.dragging_rectangle[1] = e.canvasY; this.dragging_rectangle[2] = 1; this.dragging_rectangle[3] = 1; skip_action = true; } // clone node ALT dragging if (LiteGraph.alt_drag_do_clone_nodes && e.altKey && node && this.allow_interaction && !skip_action && !this.read_only) { if (cloned = node.clone()){ cloned.pos[0] += 5; cloned.pos[1] += 5; this.graph.add(cloned,false,{doCalcSize: false}); node = cloned; skip_action = true; if (!block_drag_node) { if (this.allow_dragnodes) { this.graph.beforeChange(); this.node_dragged = node; } if (!this.selected_nodes[node.id]) { this.processNodeSelected(node, e); } } } } var clicking_canvas_bg = false; //when clicked on top of a node //and it is not interactive if (node && this.allow_interaction && !skip_action && !this.read_only) { if (!this.live_mode && !node.flags.pinned) { this.bringToFront(node); } //if it wasn't selected? //not dragging mouse to connect two slots if ( !this.connecting_node && !node.flags.collapsed && !this.live_mode ) { //Search for corner for resize if ( !skip_action && node.resizable !== false && isInsideRectangle( e.canvasX, e.canvasY, node.pos[0] + node.size[0] - 5, node.pos[1] + node.size[1] - 5, 10, 10 ) ) { this.graph.beforeChange(); this.resizing_node = node; this.canvas.style.cursor = "se-resize"; skip_action = true; } else { //search for outputs if (node.outputs) { for ( var i = 0, l = node.outputs.length; i < l; ++i ) { var output = node.outputs[i]; var link_pos = node.getConnectionPos(false, i); if ( isInsideRectangle( e.canvasX, e.canvasY, link_pos[0] - 15, link_pos[1] - 10, 30, 20 ) ) { this.connecting_node = node; this.connecting_output = output; this.connecting_output.slot_index = i; this.connecting_pos = node.getConnectionPos( false, i ); this.connecting_slot = i; if (LiteGraph.shift_click_do_break_link_from){ if (e.shiftKey) { node.disconnectOutput(i); } } if (is_double_click) { if (node.onOutputDblClick) { node.onOutputDblClick(i, e); } } else { if (node.onOutputClick) { node.onOutputClick(i, e); } } skip_action = true; break; } } } //search for inputs if (node.inputs) { for ( var i = 0, l = node.inputs.length; i < l; ++i ) { var input = node.inputs[i]; var link_pos = node.getConnectionPos(true, i); if ( isInsideRectangle( e.canvasX, e.canvasY, link_pos[0] - 15, link_pos[1] - 10, 30, 20 ) ) { if (is_double_click) { if (node.onInputDblClick) { node.onInputDblClick(i, e); } } else { if (node.onInputClick) { node.onInputClick(i, e); } } if (input.link !== null) { var link_info = this.graph.links[ input.link ]; //before disconnecting if (LiteGraph.click_do_break_link_to){ node.disconnectInput(i); this.dirty_bgcanvas = true; skip_action = true; }else{ // do same action as has not node ? } if ( this.allow_reconnect_links || //this.move_destination_link_without_shift || e.shiftKey ) { if (!LiteGraph.click_do_break_link_to){ node.disconnectInput(i); } this.connecting_node = this.graph._nodes_by_id[ link_info.origin_id ]; this.connecting_slot = link_info.origin_slot; this.connecting_output = this.connecting_node.outputs[ this.connecting_slot ]; this.connecting_pos = this.connecting_node.getConnectionPos( false, this.connecting_slot ); this.dirty_bgcanvas = true; skip_action = true; } }else{ // has not node } if (!skip_action){ // connect from in to out, from to to from this.connecting_node = node; this.connecting_input = input; this.connecting_input.slot_index = i; this.connecting_pos = node.getConnectionPos( true, i ); this.connecting_slot = i; this.dirty_bgcanvas = true; skip_action = true; } } } } } //not resizing } //it wasn't clicked on the links boxes if (!skip_action) { var block_drag_node = false; var pos = [e.canvasX - node.pos[0], e.canvasY - node.pos[1]]; //widgets var widget = this.processNodeWidgets( node, this.graph_mouse, e ); if (widget) { block_drag_node = true; this.node_widget = [node, widget]; } //double clicking if (is_double_click && this.selected_nodes[node.id]) { //double click node if (node.onDblClick) { node.onDblClick( e, pos, this ); } this.processNodeDblClicked(node); block_drag_node = true; } //if do not capture mouse if ( node.onMouseDown && node.onMouseDown( e, pos, this ) ) { block_drag_node = true; } else { //open subgraph button if(node.subgraph && !node.skip_subgraph_button) { if ( !node.flags.collapsed && pos[0] > node.size[0] - LiteGraph.NODE_TITLE_HEIGHT && pos[1] < 0 ) { var that = this; setTimeout(function() { that.openSubgraph(node.subgraph); }, 10); } } if (this.live_mode) { clicking_canvas_bg = true; block_drag_node = true; } } if (!block_drag_node) { if (this.allow_dragnodes) { this.graph.beforeChange(); this.node_dragged = node; } this.processNodeSelected(node, e); } else { // double-click /** * Don't call the function if the block is already selected. * Otherwise, it could cause the block to be unselected while its panel is open. */ if (!node.is_selected) this.processNodeSelected(node, e); } this.dirty_canvas = true; } } //clicked outside of nodes else { if (!skip_action){ //search for link connector if(!this.read_only) { for (var i = 0; i < this.visible_links.length; ++i) { var link = this.visible_links[i]; var center = link._pos; if ( !center || e.canvasX < center[0] - 4 || e.canvasX > center[0] + 4 || e.canvasY < center[1] - 4 || e.canvasY > center[1] + 4 ) { continue; } //link clicked this.showLinkMenu(link, e); this.over_link_center = null; //clear tooltip break; } } this.selected_group = this.graph.getGroupOnPos( e.canvasX, e.canvasY ); this.selected_group_resizing = false; if (this.selected_group && !this.read_only ) { if (e.ctrlKey) { this.dragging_rectangle = null; } var dist = distance( [e.canvasX, e.canvasY], [ this.selected_group.pos[0] + this.selected_group.size[0], this.selected_group.pos[1] + this.selected_group.size[1] ] ); if (dist * this.ds.scale < 10) { this.selected_group_resizing = true; } else { this.selected_group.recomputeInsideNodes(); } } if (is_double_click && !this.read_only && this.allow_searchbox) { this.showSearchBox(e); e.preventDefault(); e.stopPropagation(); } clicking_canvas_bg = true; } } if (!skip_action && clicking_canvas_bg && this.allow_dragcanvas) { //console.log("pointerevents: dragging_canvas start"); this.dragging_canvas = true; } } else if (e.which == 2) { //middle button if (LiteGraph.middle_click_slot_add_default_node){ if (node && this.allow_interaction && !skip_action && !this.read_only){ //not dragging mouse to connect two slots if ( !this.connecting_node && !node.flags.collapsed && !this.live_mode ) { var mClikSlot = false; var mClikSlot_index = false; var mClikSlot_isOut = false; //search for outputs if (node.outputs) { for ( var i = 0, l = node.outputs.length; i < l; ++i ) { var output = node.outputs[i]; var link_pos = node.getConnectionPos(false, i); if (isInsideRectangle(e.canvasX,e.canvasY,link_pos[0] - 15,link_pos[1] - 10,30,20)) { mClikSlot = output; mClikSlot_index = i; mClikSlot_isOut = true; break; } } } //search for inputs if (node.inputs) { for ( var i = 0, l = node.inputs.length; i < l; ++i ) { var input = node.inputs[i]; var link_pos = node.getConnectionPos(true, i); if (isInsideRectangle(e.canvasX,e.canvasY,link_pos[0] - 15,link_pos[1] - 10,30,20)) { mClikSlot = input; mClikSlot_index = i; mClikSlot_isOut = false; break; } } } //console.log("middleClickSlots? "+mClikSlot+" & "+(mClikSlot_index!==false)); if (mClikSlot && mClikSlot_index!==false){ var alphaPosY = 0.5-((mClikSlot_index+1)/((mClikSlot_isOut?node.outputs.length:node.inputs.length))); var node_bounding = node.getBounding(); // estimate a position: this is a bad semi-bad-working mess .. REFACTOR with a correct autoplacement that knows about the others slots and nodes var posRef = [ (!mClikSlot_isOut?node_bounding[0]:node_bounding[0]+node_bounding[2])// + node_bounding[0]/this.canvas.width*150 ,e.canvasY-80// + node_bounding[0]/this.canvas.width*66 // vertical "derive" ]; var nodeCreated = this.createDefaultNodeForSlot({ nodeFrom: !mClikSlot_isOut?null:node ,slotFrom: !mClikSlot_isOut?null:mClikSlot_index ,nodeTo: !mClikSlot_isOut?node:null ,slotTo: !mClikSlot_isOut?mClikSlot_index:null ,position: posRef //,e: e ,nodeType: "AUTO" //nodeNewType ,posAdd:[!mClikSlot_isOut?-30:30, -alphaPosY*130] //-alphaPosY*30] ,posSizeFix:[!mClikSlot_isOut?-1:0, 0] //-alphaPosY*2*/ }); } } } } } else if (e.which == 3 || this.pointer_is_double) { //right button if (this.allow_interaction && !skip_action && !this.read_only){ // is it hover a node ? if (node){ if(Object.keys(this.selected_nodes).length && (this.selected_nodes[node.id] || e.shiftKey || e.ctrlKey || e.metaKey) ){ // is multiselected or using shift to include the now node if (!this.selected_nodes[node.id]) this.selectNodes([node],true); // add this if not present }else{ // update selection this.selectNodes([node]); } } // show menu on this node this.processContextMenu(node, e); } } //TODO //if(this.node_selected != prev_selected) // this.onNodeSelectionChange(this.node_selected); this.last_mouse[0] = e.clientX; this.last_mouse[1] = e.clientY; this.last_mouseclick = LiteGraph.getTime(); this.last_mouse_dragging = true; /* if( (this.dirty_canvas || this.dirty_bgcanvas) && this.rendering_timer_id == null) this.draw(); */ this.graph.change(); //this is to ensure to defocus(blur) if a text input element is on focus if ( !ref_window.document.activeElement || (ref_window.document.activeElement.nodeName.toLowerCase() != "input" && ref_window.document.activeElement.nodeName.toLowerCase() != "textarea") ) { e.preventDefault(); } e.stopPropagation(); if (this.onMouseDown) { this.onMouseDown(e); } return false; }; /** * Called when a mouse move event has to be processed * @method processMouseMove **/ LGraphCanvas.prototype.processMouseMove = function(e) { if (this.autoresize) { this.resize(); } if( this.set_canvas_dirty_on_mouse_event ) this.dirty_canvas = true; if (!this.graph) { return; } LGraphCanvas.active_canvas = this; this.adjustMouseEvent(e); var mouse = [e.clientX, e.clientY]; this.mouse[0] = mouse[0]; this.mouse[1] = mouse[1]; var delta = [ mouse[0] - this.last_mouse[0], mouse[1] - this.last_mouse[1] ]; this.last_mouse = mouse; this.graph_mouse[0] = e.canvasX; this.graph_mouse[1] = e.canvasY; //console.log("pointerevents: processMouseMove "+e.pointerId+" "+e.isPrimary); if(this.block_click) { //console.log("pointerevents: processMouseMove block_click"); e.preventDefault(); return false; } e.dragging = this.last_mouse_dragging; if (this.node_widget) { this.processNodeWidgets( this.node_widget[0], this.graph_mouse, e, this.node_widget[1] ); this.dirty_canvas = true; } if (this.dragging_rectangle) { this.dragging_rectangle[2] = e.canvasX - this.dragging_rectangle[0]; this.dragging_rectangle[3] = e.canvasY - this.dragging_rectangle[1]; this.dirty_canvas = true; } else if (this.selected_group && !this.read_only) { //moving/resizing a group if (this.selected_group_resizing) { this.selected_group.size = [ e.canvasX - this.selected_group.pos[0], e.canvasY - this.selected_group.pos[1] ]; } else { var deltax = delta[0] / this.ds.scale; var deltay = delta[1] / this.ds.scale; this.selected_group.move(deltax, deltay, e.ctrlKey); if (this.selected_group._nodes.length) { this.dirty_canvas = true; } } this.dirty_bgcanvas = true; } else if (this.dragging_canvas) { ////console.log("pointerevents: processMouseMove is dragging_canvas"); this.ds.offset[0] += delta[0] / this.ds.scale; this.ds.offset[1] += delta[1] / this.ds.scale; this.dirty_canvas = true; this.dirty_bgcanvas = true; } else if (this.allow_interaction && !this.read_only) { if (this.connecting_node) { this.dirty_canvas = true; } //get node over var node = this.graph.getNodeOnPos(e.canvasX,e.canvasY,this.visible_nodes); //remove mouseover flag for (var i = 0, l = this.graph._nodes.length; i < l; ++i) { if (this.graph._nodes[i].mouseOver && node != this.graph._nodes[i] ) { //mouse leave this.graph._nodes[i].mouseOver = false; if (this.node_over && this.node_over.onMouseLeave) { this.node_over.onMouseLeave(e); } this.node_over = null; this.dirty_canvas = true; } } //mouse over a node if (node) { if(node.redraw_on_mouse) this.dirty_canvas = true; //this.canvas.style.cursor = "move"; if (!node.mouseOver) { //mouse enter node.mouseOver = true; this.node_over = node; this.dirty_canvas = true; if (node.onMouseEnter) { node.onMouseEnter(e); } } //in case the node wants to do something if (node.onMouseMove) { node.onMouseMove( e, [e.canvasX - node.pos[0], e.canvasY - node.pos[1]], this ); } //if dragging a link if (this.connecting_node) { if (this.connecting_output){ var pos = this._highlight_input || [0, 0]; //to store the output of isOverNodeInput //on top of input if (this.isOverNodeBox(node, e.canvasX, e.canvasY)) { //mouse on top of the corner box, don't know what to do } else { //check if I have a slot below de mouse var slot = this.isOverNodeInput( node, e.canvasX, e.canvasY, pos ); if (slot != -1 && node.inputs[slot]) { var slot_type = node.inputs[slot].type; if ( LiteGraph.isValidConnection( this.connecting_output.type, slot_type ) ) { this._highlight_input = pos; this._highlight_input_slot = node.inputs[slot]; // XXX CHECK THIS } } else { this._highlight_input = null; this._highlight_input_slot = null; // XXX CHECK THIS } } }else if(this.connecting_input){ var pos = this._highlight_output || [0, 0]; //to store the output of isOverNodeOutput //on top of output if (this.isOverNodeBox(node, e.canvasX, e.canvasY)) { //mouse on top of the corner box, don't know what to do } else { //check if I have a slot below de mouse var slot = this.isOverNodeOutput( node, e.canvasX, e.canvasY, pos ); if (slot != -1 && node.outputs[slot]) { var slot_type = node.outputs[slot].type; if ( LiteGraph.isValidConnection( this.connecting_input.type, slot_type ) ) { this._highlight_output = pos; } } else { this._highlight_output = null; } } } } //Search for corner if (this.canvas) { if ( isInsideRectangle( e.canvasX, e.canvasY, node.pos[0] + node.size[0] - 5, node.pos[1] + node.size[1] - 5, 5, 5 ) ) { this.canvas.style.cursor = "se-resize"; } else { this.canvas.style.cursor = "crosshair"; } } } else { //not over a node //search for link connector var over_link = null; for (var i = 0; i < this.visible_links.length; ++i) { var link = this.visible_links[i]; var center = link._pos; if ( !center || e.canvasX < center[0] - 4 || e.canvasX > center[0] + 4 || e.canvasY < center[1] - 4 || e.canvasY > center[1] + 4 ) { continue; } over_link = link; break; } if( over_link != this.over_link_center ) { this.over_link_center = over_link; this.dirty_canvas = true; } if (this.canvas) { this.canvas.style.cursor = ""; } } //end //send event to node if capturing input (used with widgets that allow drag outside of the area of the node) if ( this.node_capturing_input && this.node_capturing_input != node && this.node_capturing_input.onMouseMove ) { this.node_capturing_input.onMouseMove(e,[e.canvasX - this.node_capturing_input.pos[0],e.canvasY - this.node_capturing_input.pos[1]], this); } //node being dragged if (this.node_dragged && !this.live_mode) { //console.log("draggin!",this.selected_nodes); for (var i in this.selected_nodes) { var n = this.selected_nodes[i]; n.pos[0] += delta[0] / this.ds.scale; n.pos[1] += delta[1] / this.ds.scale; if (!n.is_selected) this.processNodeSelected(n, e); /* * Don't call the function if the block is already selected. * Otherwise, it could cause the block to be unselected while dragging. */ } this.dirty_canvas = true; this.dirty_bgcanvas = true; } if (this.resizing_node && !this.live_mode) { //convert mouse to node space var desired_size = [ e.canvasX - this.resizing_node.pos[0], e.canvasY - this.resizing_node.pos[1] ]; var min_size = this.resizing_node.computeSize(); desired_size[0] = Math.max( min_size[0], desired_size[0] ); desired_size[1] = Math.max( min_size[1], desired_size[1] ); this.resizing_node.setSize( desired_size ); this.canvas.style.cursor = "se-resize"; this.dirty_canvas = true; this.dirty_bgcanvas = true; } } e.preventDefault(); return false; }; /** * Called when a mouse up event has to be processed * @method processMouseUp **/ LGraphCanvas.prototype.processMouseUp = function(e) { var is_primary = ( e.isPrimary === undefined || e.isPrimary ); //early exit for extra pointer if(!is_primary){ /*e.stopPropagation(); e.preventDefault();*/ //console.log("pointerevents: processMouseUp pointerN_stop "+e.pointerId+" "+e.isPrimary); return false; } //console.log("pointerevents: processMouseUp "+e.pointerId+" "+e.isPrimary+" :: "+e.clientX+" "+e.clientY); if( this.set_canvas_dirty_on_mouse_event ) this.dirty_canvas = true; if (!this.graph) return; var window = this.getCanvasWindow(); var document = window.document; LGraphCanvas.active_canvas = this; //restore the mousemove event back to the canvas if(!this.options.skip_events) { //console.log("pointerevents: processMouseUp adjustEventListener"); LiteGraph.pointerListenerRemove(document,"move", this._mousemove_callback,true); LiteGraph.pointerListenerAdd(this.canvas,"move", this._mousemove_callback,true); LiteGraph.pointerListenerRemove(document,"up", this._mouseup_callback,true); } this.adjustMouseEvent(e); var now = LiteGraph.getTime(); e.click_time = now - this.last_mouseclick; this.last_mouse_dragging = false; this.last_click_position = null; if(this.block_click) { //console.log("pointerevents: processMouseUp block_clicks"); this.block_click = false; //used to avoid sending twice a click in a immediate button } //console.log("pointerevents: processMouseUp which: "+e.which); if (e.which == 1) { if( this.node_widget ) { this.processNodeWidgets( this.node_widget[0], this.graph_mouse, e ); } //left button this.node_widget = null; if (this.selected_group) { var diffx = this.selected_group.pos[0] - Math.round(this.selected_group.pos[0]); var diffy = this.selected_group.pos[1] - Math.round(this.selected_group.pos[1]); this.selected_group.move(diffx, diffy, e.ctrlKey); this.selected_group.pos[0] = Math.round( this.selected_group.pos[0] ); this.selected_group.pos[1] = Math.round( this.selected_group.pos[1] ); if (this.selected_group._nodes.length) { this.dirty_canvas = true; } this.selected_group = null; } this.selected_group_resizing = false; var node = this.graph.getNodeOnPos( e.canvasX, e.canvasY, this.visible_nodes ); if (this.dragging_rectangle) { if (this.graph) { var nodes = this.graph._nodes; var node_bounding = new Float32Array(4); //compute bounding and flip if left to right var w = Math.abs(this.dragging_rectangle[2]); var h = Math.abs(this.dragging_rectangle[3]); var startx = this.dragging_rectangle[2] < 0 ? this.dragging_rectangle[0] - w : this.dragging_rectangle[0]; var starty = this.dragging_rectangle[3] < 0 ? this.dragging_rectangle[1] - h : this.dragging_rectangle[1]; this.dragging_rectangle[0] = startx; this.dragging_rectangle[1] = starty; this.dragging_rectangle[2] = w; this.dragging_rectangle[3] = h; // test dragging rect size, if minimun simulate a click if (!node || (w > 10 && h > 10 )){ //test against all nodes (not visible because the rectangle maybe start outside var to_select = []; for (var i = 0; i < nodes.length; ++i) { var nodeX = nodes[i]; nodeX.getBounding(node_bounding); if ( !overlapBounding( this.dragging_rectangle, node_bounding ) ) { continue; } //out of the visible area to_select.push(nodeX); } if (to_select.length) { this.selectNodes(to_select,e.shiftKey); // add to selection with shift } }else{ // will select of update selection this.selectNodes([node],e.shiftKey||e.ctrlKey); // add to selection add to selection with ctrlKey or shiftKey } } this.dragging_rectangle = null; } else if (this.connecting_node) { //dragging a connection this.dirty_canvas = true; this.dirty_bgcanvas = true; var connInOrOut = this.connecting_output || this.connecting_input; var connType = connInOrOut.type; //node below mouse if (node) { /* no need to condition on event type.. just another type if ( connType == LiteGraph.EVENT && this.isOverNodeBox(node, e.canvasX, e.canvasY) ) { this.connecting_node.connect( this.connecting_slot, node, LiteGraph.EVENT ); } else {*/ //slot below mouse? connect if (this.connecting_output){ var slot = this.isOverNodeInput( node, e.canvasX, e.canvasY ); if (slot != -1) { this.connecting_node.connect(this.connecting_slot, node, slot); } else { //not on top of an input // look for a good slot this.connecting_node.connectByType(this.connecting_slot,node,connType); } }else if (this.connecting_input){ var slot = this.isOverNodeOutput( node, e.canvasX, e.canvasY ); if (slot != -1) { node.connect(slot, this.connecting_node, this.connecting_slot); // this is inverted has output-input nature like } else { //not on top of an input // look for a good slot this.connecting_node.connectByTypeOutput(this.connecting_slot,node,connType); } } //} }else{ // add menu when releasing link in empty space if (LiteGraph.release_link_on_empty_shows_menu){ if (e.shiftKey && this.allow_searchbox){ if(this.connecting_output){ this.showSearchBox(e,{node_from: this.connecting_node, slot_from: this.connecting_output, type_filter_in: this.connecting_output.type}); }else if(this.connecting_input){ this.showSearchBox(e,{node_to: this.connecting_node, slot_from: this.connecting_input, type_filter_out: this.connecting_input.type}); } }else{ if(this.connecting_output){ this.showConnectionMenu({nodeFrom: this.connecting_node, slotFrom: this.connecting_output, e: e}); }else if(this.connecting_input){ this.showConnectionMenu({nodeTo: this.connecting_node, slotTo: this.connecting_input, e: e}); } } } } this.connecting_output = null; this.connecting_input = null; this.connecting_pos = null; this.connecting_node = null; this.connecting_slot = -1; } //not dragging connection else if (this.resizing_node) { this.dirty_canvas = true; this.dirty_bgcanvas = true; this.graph.afterChange(this.resizing_node); this.resizing_node = null; } else if (this.node_dragged) { //node being dragged? var node = this.node_dragged; if ( node && e.click_time < 300 && isInsideRectangle( e.canvasX, e.canvasY, node.pos[0], node.pos[1] - LiteGraph.NODE_TITLE_HEIGHT, LiteGraph.NODE_TITLE_HEIGHT, LiteGraph.NODE_TITLE_HEIGHT ) ) { node.collapse(); } this.dirty_canvas = true; this.dirty_bgcanvas = true; this.node_dragged.pos[0] = Math.round(this.node_dragged.pos[0]); this.node_dragged.pos[1] = Math.round(this.node_dragged.pos[1]); if (this.graph.config.align_to_grid || this.align_to_grid ) { this.node_dragged.alignToGrid(); } if( this.onNodeMoved ) this.onNodeMoved( this.node_dragged ); this.graph.afterChange(this.node_dragged); this.node_dragged = null; } //no node being dragged else { //get node over var node = this.graph.getNodeOnPos( e.canvasX, e.canvasY, this.visible_nodes ); if (!node && e.click_time < 300) { this.deselectAllNodes(); } this.dirty_canvas = true; this.dragging_canvas = false; if (this.node_over && this.node_over.onMouseUp) { this.node_over.onMouseUp( e, [ e.canvasX - this.node_over.pos[0], e.canvasY - this.node_over.pos[1] ], this ); } if ( this.node_capturing_input && this.node_capturing_input.onMouseUp ) { this.node_capturing_input.onMouseUp(e, [ e.canvasX - this.node_capturing_input.pos[0], e.canvasY - this.node_capturing_input.pos[1] ]); } } } else if (e.which == 2) { //middle button //trace("middle"); this.dirty_canvas = true; this.dragging_canvas = false; } else if (e.which == 3) { //right button //trace("right"); this.dirty_canvas = true; this.dragging_canvas = false; } /* if((this.dirty_canvas || this.dirty_bgcanvas) && this.rendering_timer_id == null) this.draw(); */ if (is_primary) { this.pointer_is_down = false; this.pointer_is_double = false; } this.graph.change(); //console.log("pointerevents: processMouseUp stopPropagation"); e.stopPropagation(); e.preventDefault(); return false; }; /** * Called when a mouse wheel event has to be processed * @method processMouseWheel **/ LGraphCanvas.prototype.processMouseWheel = function(e) { if (!this.graph || !this.allow_dragcanvas) { return; } var delta = e.wheelDeltaY != null ? e.wheelDeltaY : e.detail * -60; this.adjustMouseEvent(e); var x = e.clientX; var y = e.clientY; var is_inside = !this.viewport || ( this.viewport && x >= this.viewport[0] && x < (this.viewport[0] + this.viewport[2]) && y >= this.viewport[1] && y < (this.viewport[1] + this.viewport[3]) ); if(!is_inside) return; var scale = this.ds.scale; if (delta > 0) { scale *= 1.1; } else if (delta < 0) { scale *= 1 / 1.1; } //this.setZoom( scale, [ e.clientX, e.clientY ] ); this.ds.changeScale(scale, [e.clientX, e.clientY]); this.graph.change(); e.preventDefault(); return false; // prevent default }; /** * returns true if a position (in graph space) is on top of a node little corner box * @method isOverNodeBox **/ LGraphCanvas.prototype.isOverNodeBox = function(node, canvasx, canvasy) { var title_height = LiteGraph.NODE_TITLE_HEIGHT; if ( isInsideRectangle( canvasx, canvasy, node.pos[0] + 2, node.pos[1] + 2 - title_height, title_height - 4, title_height - 4 ) ) { return true; } return false; }; /** * returns the INDEX if a position (in graph space) is on top of a node input slot * @method isOverNodeInput **/ LGraphCanvas.prototype.isOverNodeInput = function( node, canvasx, canvasy, slot_pos ) { if (node.inputs) { for (var i = 0, l = node.inputs.length; i < l; ++i) { var input = node.inputs[i]; var link_pos = node.getConnectionPos(true, i); var is_inside = false; if (node.horizontal) { is_inside = isInsideRectangle( canvasx, canvasy, link_pos[0] - 5, link_pos[1] - 10, 10, 20 ); } else { is_inside = isInsideRectangle( canvasx, canvasy, link_pos[0] - 10, link_pos[1] - 5, 40, 10 ); } if (is_inside) { if (slot_pos) { slot_pos[0] = link_pos[0]; slot_pos[1] = link_pos[1]; } return i; } } } return -1; }; /** * returns the INDEX if a position (in graph space) is on top of a node output slot * @method isOverNodeOuput **/ LGraphCanvas.prototype.isOverNodeOutput = function( node, canvasx, canvasy, slot_pos ) { if (node.outputs) { for (var i = 0, l = node.outputs.length; i < l; ++i) { var output = node.outputs[i]; var link_pos = node.getConnectionPos(false, i); var is_inside = false; if (node.horizontal) { is_inside = isInsideRectangle( canvasx, canvasy, link_pos[0] - 5, link_pos[1] - 10, 10, 20 ); } else { is_inside = isInsideRectangle( canvasx, canvasy, link_pos[0] - 10, link_pos[1] - 5, 40, 10 ); } if (is_inside) { if (slot_pos) { slot_pos[0] = link_pos[0]; slot_pos[1] = link_pos[1]; } return i; } } } return -1; }; /** * process a key event * @method processKey **/ LGraphCanvas.prototype.processKey = function(e) { if (!this.graph) { return; } var block_default = false; //console.log(e); //debug if (e.target.localName == "input") { return; } if (e.type == "keydown") { if (e.keyCode == 32) { //space this.dragging_canvas = true; block_default = true; } if (e.keyCode == 27) { //esc if(this.node_panel) this.node_panel.close(); if(this.options_panel) this.options_panel.close(); block_default = true; } //select all Control A if (e.keyCode == 65 && e.ctrlKey) { this.selectNodes(); block_default = true; } if ((e.keyCode === 67) && (e.metaKey || e.ctrlKey) && !e.shiftKey) { //copy if (this.selected_nodes) { this.copyToClipboard(); block_default = true; } } if ((e.keyCode === 86) && (e.metaKey || e.ctrlKey)) { //paste this.pasteFromClipboard(e.shiftKey); } //delete or backspace if (e.keyCode == 46 || e.keyCode == 8) { if ( e.target.localName != "input" && e.target.localName != "textarea" ) { this.deleteSelectedNodes(); block_default = true; } } //collapse //... //TODO if (this.selected_nodes) { for (var i in this.selected_nodes) { if (this.selected_nodes[i].onKeyDown) { this.selected_nodes[i].onKeyDown(e); } } } } else if (e.type == "keyup") { if (e.keyCode == 32) { // space this.dragging_canvas = false; } if (this.selected_nodes) { for (var i in this.selected_nodes) { if (this.selected_nodes[i].onKeyUp) { this.selected_nodes[i].onKeyUp(e); } } } } this.graph.change(); if (block_default) { e.preventDefault(); e.stopImmediatePropagation(); return false; } }; LGraphCanvas.prototype.copyToClipboard = function() { var clipboard_info = { nodes: [], links: [] }; var index = 0; var selected_nodes_array = []; for (var i in this.selected_nodes) { var node = this.selected_nodes[i]; node._relative_id = index; selected_nodes_array.push(node); index += 1; } for (var i = 0; i < selected_nodes_array.length; ++i) { var node = selected_nodes_array[i]; var cloned = node.clone(); if(!cloned) { console.warn("node type not found: " + node.type ); continue; } clipboard_info.nodes.push(cloned.serialize()); if (node.inputs && node.inputs.length) { for (var j = 0; j < node.inputs.length; ++j) { var input = node.inputs[j]; if (!input || input.link == null) { continue; } var link_info = this.graph.links[input.link]; if (!link_info) { continue; } var target_node = this.graph.getNodeById( link_info.origin_id ); if (!target_node) { continue; } clipboard_info.links.push([ target_node._relative_id, link_info.origin_slot, //j, node._relative_id, link_info.target_slot, target_node.id ]); } } } localStorage.setItem( "litegrapheditor_clipboard", JSON.stringify(clipboard_info) ); }; LGraphCanvas.prototype.pasteFromClipboard = function(isConnectUnselected = false) { // if ctrl + shift + v is off, return when isConnectUnselected is true (shift is pressed) to maintain old behavior if (!LiteGraph.ctrl_shift_v_paste_connect_unselected_outputs && isConnectUnselected) { return; } var data = localStorage.getItem("litegrapheditor_clipboard"); if (!data) { return; } this.graph.beforeChange(); //create nodes var clipboard_info = JSON.parse(data); // calculate top-left node, could work without this processing but using diff with last node pos :: clipboard_info.nodes[clipboard_info.nodes.length-1].pos var posMin = false; var posMinIndexes = false; for (var i = 0; i < clipboard_info.nodes.length; ++i) { if (posMin){ if(posMin[0]>clipboard_info.nodes[i].pos[0]){ posMin[0] = clipboard_info.nodes[i].pos[0]; posMinIndexes[0] = i; } if(posMin[1]>clipboard_info.nodes[i].pos[1]){ posMin[1] = clipboard_info.nodes[i].pos[1]; posMinIndexes[1] = i; } } else{ posMin = [clipboard_info.nodes[i].pos[0], clipboard_info.nodes[i].pos[1]]; posMinIndexes = [i, i]; } } var nodes = []; for (var i = 0; i < clipboard_info.nodes.length; ++i) { var node_data = clipboard_info.nodes[i]; var node = LiteGraph.createNode(node_data.type); if (node) { node.configure(node_data); //paste in last known mouse position node.pos[0] += this.graph_mouse[0] - posMin[0]; //+= 5; node.pos[1] += this.graph_mouse[1] - posMin[1]; //+= 5; this.graph.add(node,{doProcessChange:false}); nodes.push(node); } } //create links for (var i = 0; i < clipboard_info.links.length; ++i) { var link_info = clipboard_info.links[i]; var origin_node; var origin_node_relative_id = link_info[0]; if (origin_node_relative_id != null) { origin_node = nodes[origin_node_relative_id]; } else if (LiteGraph.ctrl_shift_v_paste_connect_unselected_outputs && isConnectUnselected) { var origin_node_id = link_info[4]; if (origin_node_id) { origin_node = this.graph.getNodeById(origin_node_id); } } var target_node = nodes[link_info[2]]; if( origin_node && target_node ) origin_node.connect(link_info[1], target_node, link_info[3]); else console.warn("Warning, nodes missing on pasting"); } this.selectNodes(nodes); this.graph.afterChange(); }; /** * process a item drop event on top the canvas * @method processDrop **/ LGraphCanvas.prototype.processDrop = function(e) { e.preventDefault(); this.adjustMouseEvent(e); var x = e.clientX; var y = e.clientY; var is_inside = !this.viewport || ( this.viewport && x >= this.viewport[0] && x < (this.viewport[0] + this.viewport[2]) && y >= this.viewport[1] && y < (this.viewport[1] + this.viewport[3]) ); if(!is_inside){ return; // --- BREAK --- } var pos = [e.canvasX, e.canvasY]; var node = this.graph ? this.graph.getNodeOnPos(pos[0], pos[1]) : null; if (!node) { var r = null; if (this.onDropItem) { r = this.onDropItem(event); } if (!r) { this.checkDropItem(e); } return; } if (node.onDropFile || node.onDropData) { var files = e.dataTransfer.files; if (files && files.length) { for (var i = 0; i < files.length; i++) { var file = e.dataTransfer.files[0]; var filename = file.name; var ext = LGraphCanvas.getFileExtension(filename); //console.log(file); if (node.onDropFile) { node.onDropFile(file); } if (node.onDropData) { //prepare reader var reader = new FileReader(); reader.onload = function(event) { //console.log(event.target); var data = event.target.result; node.onDropData(data, filename, file); }; //read data var type = file.type.split("/")[0]; if (type == "text" || type == "") { reader.readAsText(file); } else if (type == "image") { reader.readAsDataURL(file); } else { reader.readAsArrayBuffer(file); } } } } } if (node.onDropItem) { if (node.onDropItem(event)) { return true; } } if (this.onDropItem) { return this.onDropItem(event); } return false; }; //called if the graph doesn't have a default drop item behaviour LGraphCanvas.prototype.checkDropItem = function(e) { if (e.dataTransfer.files.length) { var file = e.dataTransfer.files[0]; var ext = LGraphCanvas.getFileExtension(file.name).toLowerCase(); var nodetype = LiteGraph.node_types_by_file_extension[ext]; if (nodetype) { this.graph.beforeChange(); var node = LiteGraph.createNode(nodetype.type); node.pos = [e.canvasX, e.canvasY]; this.graph.add(node); if (node.onDropFile) { node.onDropFile(file); } this.graph.afterChange(); } } }; LGraphCanvas.prototype.processNodeDblClicked = function(n) { if (this.onShowNodePanel) { this.onShowNodePanel(n); } else { this.showShowNodePanel(n); } if (this.onNodeDblClicked) { this.onNodeDblClicked(n); } this.setDirty(true); }; LGraphCanvas.prototype.processNodeSelected = function(node, e) { this.selectNode(node, e && (e.shiftKey || e.ctrlKey || this.multi_select)); if (this.onNodeSelected) { this.onNodeSelected(node); } }; /** * selects a given node (or adds it to the current selection) * @method selectNode **/ LGraphCanvas.prototype.selectNode = function( node, add_to_current_selection ) { if (node == null) { this.deselectAllNodes(); } else { this.selectNodes([node], add_to_current_selection); } }; /** * selects several nodes (or adds them to the current selection) * @method selectNodes **/ LGraphCanvas.prototype.selectNodes = function( nodes, add_to_current_selection ) { if (!add_to_current_selection) { this.deselectAllNodes(); } nodes = nodes || this.graph._nodes; if (typeof nodes == "string") nodes = [nodes]; for (var i in nodes) { var node = nodes[i]; if (node.is_selected) { this.deselectNode(node); continue; } if (!node.is_selected && node.onSelected) { node.onSelected(); } node.is_selected = true; this.selected_nodes[node.id] = node; if (node.inputs) { for (var j = 0; j < node.inputs.length; ++j) { this.highlighted_links[node.inputs[j].link] = true; } } if (node.outputs) { for (var j = 0; j < node.outputs.length; ++j) { var out = node.outputs[j]; if (out.links) { for (var k = 0; k < out.links.length; ++k) { this.highlighted_links[out.links[k]] = true; } } } } } if( this.onSelectionChange ) this.onSelectionChange( this.selected_nodes ); this.setDirty(true); }; /** * removes a node from the current selection * @method deselectNode **/ LGraphCanvas.prototype.deselectNode = function(node) { if (!node.is_selected) { return; } if (node.onDeselected) { node.onDeselected(); } node.is_selected = false; if (this.onNodeDeselected) { this.onNodeDeselected(node); } //remove highlighted if (node.inputs) { for (var i = 0; i < node.inputs.length; ++i) { delete this.highlighted_links[node.inputs[i].link]; } } if (node.outputs) { for (var i = 0; i < node.outputs.length; ++i) { var out = node.outputs[i]; if (out.links) { for (var j = 0; j < out.links.length; ++j) { delete this.highlighted_links[out.links[j]]; } } } } }; /** * removes all nodes from the current selection * @method deselectAllNodes **/ LGraphCanvas.prototype.deselectAllNodes = function() { if (!this.graph) { return; } var nodes = this.graph._nodes; for (var i = 0, l = nodes.length; i < l; ++i) { var node = nodes[i]; if (!node.is_selected) { continue; } if (node.onDeselected) { node.onDeselected(); } node.is_selected = false; if (this.onNodeDeselected) { this.onNodeDeselected(node); } } this.selected_nodes = {}; this.current_node = null; this.highlighted_links = {}; if( this.onSelectionChange ) this.onSelectionChange( this.selected_nodes ); this.setDirty(true); }; /** * deletes all nodes in the current selection from the graph * @method deleteSelectedNodes **/ LGraphCanvas.prototype.deleteSelectedNodes = function() { this.graph.beforeChange(); for (var i in this.selected_nodes) { var node = this.selected_nodes[i]; if(node.block_delete) continue; //autoconnect when possible (very basic, only takes into account first input-output) if(node.inputs && node.inputs.length && node.outputs && node.outputs.length && LiteGraph.isValidConnection( node.inputs[0].type, node.outputs[0].type ) && node.inputs[0].link && node.outputs[0].links && node.outputs[0].links.length ) { var input_link = node.graph.links[ node.inputs[0].link ]; var output_link = node.graph.links[ node.outputs[0].links[0] ]; var input_node = node.getInputNode(0); var output_node = node.getOutputNodes(0)[0]; if(input_node && output_node) input_node.connect( input_link.origin_slot, output_node, output_link.target_slot ); } this.graph.remove(node); if (this.onNodeDeselected) { this.onNodeDeselected(node); } } this.selected_nodes = {}; this.current_node = null; this.highlighted_links = {}; this.setDirty(true); this.graph.afterChange(); }; /** * centers the camera on a given node * @method centerOnNode **/ LGraphCanvas.prototype.centerOnNode = function(node) { this.ds.offset[0] = -node.pos[0] - node.size[0] * 0.5 + (this.canvas.width * 0.5) / this.ds.scale; this.ds.offset[1] = -node.pos[1] - node.size[1] * 0.5 + (this.canvas.height * 0.5) / this.ds.scale; this.setDirty(true, true); }; /** * adds some useful properties to a mouse event, like the position in graph coordinates * @method adjustMouseEvent **/ LGraphCanvas.prototype.adjustMouseEvent = function(e) { var clientX_rel = 0; var clientY_rel = 0; if (this.canvas) { var b = this.canvas.getBoundingClientRect(); clientX_rel = e.clientX - b.left; clientY_rel = e.clientY - b.top; } else { clientX_rel = e.clientX; clientY_rel = e.clientY; } e.deltaX = clientX_rel - this.last_mouse_position[0]; e.deltaY = clientY_rel- this.last_mouse_position[1]; this.last_mouse_position[0] = clientX_rel; this.last_mouse_position[1] = clientY_rel; e.canvasX = clientX_rel / this.ds.scale - this.ds.offset[0]; e.canvasY = clientY_rel / this.ds.scale - this.ds.offset[1]; //console.log("pointerevents: adjustMouseEvent "+e.clientX+":"+e.clientY+" "+clientX_rel+":"+clientY_rel+" "+e.canvasX+":"+e.canvasY); }; /** * changes the zoom level of the graph (default is 1), you can pass also a place used to pivot the zoom * @method setZoom **/ LGraphCanvas.prototype.setZoom = function(value, zooming_center) { this.ds.changeScale(value, zooming_center); /* if(!zooming_center && this.canvas) zooming_center = [this.canvas.width * 0.5,this.canvas.height * 0.5]; var center = this.convertOffsetToCanvas( zooming_center ); this.ds.scale = value; if(this.scale > this.max_zoom) this.scale = this.max_zoom; else if(this.scale < this.min_zoom) this.scale = this.min_zoom; var new_center = this.convertOffsetToCanvas( zooming_center ); var delta_offset = [new_center[0] - center[0], new_center[1] - center[1]]; this.offset[0] += delta_offset[0]; this.offset[1] += delta_offset[1]; */ this.dirty_canvas = true; this.dirty_bgcanvas = true; }; /** * converts a coordinate from graph coordinates to canvas2D coordinates * @method convertOffsetToCanvas **/ LGraphCanvas.prototype.convertOffsetToCanvas = function(pos, out) { return this.ds.convertOffsetToCanvas(pos, out); }; /** * converts a coordinate from Canvas2D coordinates to graph space * @method convertCanvasToOffset **/ LGraphCanvas.prototype.convertCanvasToOffset = function(pos, out) { return this.ds.convertCanvasToOffset(pos, out); }; //converts event coordinates from canvas2D to graph coordinates LGraphCanvas.prototype.convertEventToCanvasOffset = function(e) { var rect = this.canvas.getBoundingClientRect(); return this.convertCanvasToOffset([ e.clientX - rect.left, e.clientY - rect.top ]); }; /** * brings a node to front (above all other nodes) * @method bringToFront **/ LGraphCanvas.prototype.bringToFront = function(node) { var i = this.graph._nodes.indexOf(node); if (i == -1) { return; } this.graph._nodes.splice(i, 1); this.graph._nodes.push(node); }; /** * sends a node to the back (below all other nodes) * @method sendToBack **/ LGraphCanvas.prototype.sendToBack = function(node) { var i = this.graph._nodes.indexOf(node); if (i == -1) { return; } this.graph._nodes.splice(i, 1); this.graph._nodes.unshift(node); }; /* Interaction */ /* LGraphCanvas render */ var temp = new Float32Array(4); /** * checks which nodes are visible (inside the camera area) * @method computeVisibleNodes **/ LGraphCanvas.prototype.computeVisibleNodes = function(nodes, out) { var visible_nodes = out || []; visible_nodes.length = 0; nodes = nodes || this.graph._nodes; for (var i = 0, l = nodes.length; i < l; ++i) { var n = nodes[i]; //skip rendering nodes in live mode if (this.live_mode && !n.onDrawBackground && !n.onDrawForeground) { continue; } if (!overlapBounding(this.visible_area, n.getBounding(temp))) { continue; } //out of the visible area visible_nodes.push(n); } return visible_nodes; }; /** * renders the whole canvas content, by rendering in two separated canvas, one containing the background grid and the connections, and one containing the nodes) * @method draw **/ LGraphCanvas.prototype.draw = function(force_canvas, force_bgcanvas) { if (!this.canvas || this.canvas.width == 0 || this.canvas.height == 0) { return; } //fps counting var now = LiteGraph.getTime(); this.render_time = (now - this.last_draw_time) * 0.001; this.last_draw_time = now; if (this.graph) { this.ds.computeVisibleArea(this.viewport); } if ( this.dirty_bgcanvas || force_bgcanvas || this.always_render_background || (this.graph && this.graph._last_trigger_time && now - this.graph._last_trigger_time < 1000) ) { this.drawBackCanvas(); } if (this.dirty_canvas || force_canvas) { this.drawFrontCanvas(); } this.fps = this.render_time ? 1.0 / this.render_time : 0; this.frame += 1; }; /** * draws the front canvas (the one containing all the nodes) * @method drawFrontCanvas **/ LGraphCanvas.prototype.drawFrontCanvas = function() { this.dirty_canvas = false; if (!this.ctx) { this.ctx = this.bgcanvas.getContext("2d"); } var ctx = this.ctx; if (!ctx) { //maybe is using webgl... return; } var canvas = this.canvas; if ( ctx.start2D && !this.viewport ) { ctx.start2D(); ctx.restore(); ctx.setTransform(1, 0, 0, 1, 0, 0); } //clip dirty area if there is one, otherwise work in full canvas var area = this.viewport || this.dirty_area; if (area) { ctx.save(); ctx.beginPath(); ctx.rect( area[0],area[1],area[2],area[3] ); ctx.clip(); } //clear //canvas.width = canvas.width; if (this.clear_background) { if(area) ctx.clearRect( area[0],area[1],area[2],area[3] ); else ctx.clearRect(0, 0, canvas.width, canvas.height); } //draw bg canvas if (this.bgcanvas == this.canvas) { this.drawBackCanvas(); } else { ctx.drawImage( this.bgcanvas, 0, 0 ); } //rendering if (this.onRender) { this.onRender(canvas, ctx); } //info widget if (this.show_info) { this.renderInfo(ctx, area ? area[0] : 0, area ? area[1] : 0 ); } if (this.graph) { //apply transformations ctx.save(); this.ds.toCanvasContext(ctx); //draw nodes var drawn_nodes = 0; var visible_nodes = this.computeVisibleNodes( null, this.visible_nodes ); for (var i = 0; i < visible_nodes.length; ++i) { var node = visible_nodes[i]; //transform coords system ctx.save(); ctx.translate(node.pos[0], node.pos[1]); //Draw this.drawNode(node, ctx); drawn_nodes += 1; //Restore ctx.restore(); } //on top (debug) if (this.render_execution_order) { this.drawExecutionOrder(ctx); } //connections ontop? if (this.graph.config.links_ontop) { if (!this.live_mode) { this.drawConnections(ctx); } } //current connection (the one being dragged by the mouse) if (this.connecting_pos != null) { ctx.lineWidth = this.connections_width; var link_color = null; var connInOrOut = this.connecting_output || this.connecting_input; var connType = connInOrOut.type; var connDir = connInOrOut.dir; if(connDir == null) { if (this.connecting_output) connDir = this.connecting_node.horizontal ? LiteGraph.DOWN : LiteGraph.RIGHT; else connDir = this.connecting_node.horizontal ? LiteGraph.UP : LiteGraph.LEFT; } var connShape = connInOrOut.shape; switch (connType) { case LiteGraph.EVENT: link_color = LiteGraph.EVENT_LINK_COLOR; break; default: link_color = LiteGraph.CONNECTING_LINK_COLOR; } //the connection being dragged by the mouse this.renderLink( ctx, this.connecting_pos, [this.graph_mouse[0], this.graph_mouse[1]], null, false, null, link_color, connDir, LiteGraph.CENTER ); ctx.beginPath(); if ( connType === LiteGraph.EVENT || connShape === LiteGraph.BOX_SHAPE ) { ctx.rect( this.connecting_pos[0] - 6 + 0.5, this.connecting_pos[1] - 5 + 0.5, 14, 10 ); ctx.fill(); ctx.beginPath(); ctx.rect( this.graph_mouse[0] - 6 + 0.5, this.graph_mouse[1] - 5 + 0.5, 14, 10 ); } else if (connShape === LiteGraph.ARROW_SHAPE) { ctx.moveTo(this.connecting_pos[0] + 8, this.connecting_pos[1] + 0.5); ctx.lineTo(this.connecting_pos[0] - 4, this.connecting_pos[1] + 6 + 0.5); ctx.lineTo(this.connecting_pos[0] - 4, this.connecting_pos[1] - 6 + 0.5); ctx.closePath(); } else { ctx.arc( this.connecting_pos[0], this.connecting_pos[1], 4, 0, Math.PI * 2 ); ctx.fill(); ctx.beginPath(); ctx.arc( this.graph_mouse[0], this.graph_mouse[1], 4, 0, Math.PI * 2 ); } ctx.fill(); ctx.fillStyle = "#ffcc00"; if (this._highlight_input) { ctx.beginPath(); var shape = this._highlight_input_slot.shape; if (shape === LiteGraph.ARROW_SHAPE) { ctx.moveTo(this._highlight_input[0] + 8, this._highlight_input[1] + 0.5); ctx.lineTo(this._highlight_input[0] - 4, this._highlight_input[1] + 6 + 0.5); ctx.lineTo(this._highlight_input[0] - 4, this._highlight_input[1] - 6 + 0.5); ctx.closePath(); } else { ctx.arc( this._highlight_input[0], this._highlight_input[1], 6, 0, Math.PI * 2 ); } ctx.fill(); } if (this._highlight_output) { ctx.beginPath(); if (shape === LiteGraph.ARROW_SHAPE) { ctx.moveTo(this._highlight_output[0] + 8, this._highlight_output[1] + 0.5); ctx.lineTo(this._highlight_output[0] - 4, this._highlight_output[1] + 6 + 0.5); ctx.lineTo(this._highlight_output[0] - 4, this._highlight_output[1] - 6 + 0.5); ctx.closePath(); } else { ctx.arc( this._highlight_output[0], this._highlight_output[1], 6, 0, Math.PI * 2 ); } ctx.fill(); } } //the selection rectangle if (this.dragging_rectangle) { ctx.strokeStyle = "#FFF"; ctx.strokeRect( this.dragging_rectangle[0], this.dragging_rectangle[1], this.dragging_rectangle[2], this.dragging_rectangle[3] ); } //on top of link center if(this.over_link_center && this.render_link_tooltip) this.drawLinkTooltip( ctx, this.over_link_center ); else if(this.onDrawLinkTooltip) //to remove this.onDrawLinkTooltip(ctx,null); //custom info if (this.onDrawForeground) { this.onDrawForeground(ctx, this.visible_rect); } ctx.restore(); } //draws panel in the corner if (this._graph_stack && this._graph_stack.length) { this.drawSubgraphPanel( ctx ); } if (this.onDrawOverlay) { this.onDrawOverlay(ctx); } if (area){ ctx.restore(); } if (ctx.finish2D) { //this is a function I use in webgl renderer ctx.finish2D(); } }; /** * draws the panel in the corner that shows subgraph properties * @method drawSubgraphPanel **/ LGraphCanvas.prototype.drawSubgraphPanel = function (ctx) { var subgraph = this.graph; var subnode = subgraph._subgraph_node; if (!subnode) { console.warn("subgraph without subnode"); return; } this.drawSubgraphPanelLeft(subgraph, subnode, ctx) this.drawSubgraphPanelRight(subgraph, subnode, ctx) } LGraphCanvas.prototype.drawSubgraphPanelLeft = function (subgraph, subnode, ctx) { var num = subnode.inputs ? subnode.inputs.length : 0; var w = 200; var h = Math.floor(LiteGraph.NODE_SLOT_HEIGHT * 1.6); ctx.fillStyle = "#111"; ctx.globalAlpha = 0.8; ctx.beginPath(); ctx.roundRect(10, 10, w, (num + 1) * h + 50, [8]); ctx.fill(); ctx.globalAlpha = 1; ctx.fillStyle = "#888"; ctx.font = "14px Arial"; ctx.textAlign = "left"; ctx.fillText("Graph Inputs", 20, 34); // var pos = this.mouse; if (this.drawButton(w - 20, 20, 20, 20, "X", "#151515")) { this.closeSubgraph(); return; } var y = 50; ctx.font = "14px Arial"; if (subnode.inputs) for (var i = 0; i < subnode.inputs.length; ++i) { var input = subnode.inputs[i]; if (input.not_subgraph_input) continue; //input button clicked if (this.drawButton(20, y + 2, w - 20, h - 2)) { var type = subnode.constructor.input_node_type || "graph/input"; this.graph.beforeChange(); var newnode = LiteGraph.createNode(type); if (newnode) { subgraph.add(newnode); this.block_click = false; this.last_click_position = null; this.selectNodes([newnode]); this.node_dragged = newnode; this.dragging_canvas = false; newnode.setProperty("name", input.name); newnode.setProperty("type", input.type); this.node_dragged.pos[0] = this.graph_mouse[0] - 5; this.node_dragged.pos[1] = this.graph_mouse[1] - 5; this.graph.afterChange(); } else console.error("graph input node not found:", type); } ctx.fillStyle = "#9C9"; ctx.beginPath(); ctx.arc(w - 16, y + h * 0.5, 5, 0, 2 * Math.PI); ctx.fill(); ctx.fillStyle = "#AAA"; ctx.fillText(input.name, 30, y + h * 0.75); // var tw = ctx.measureText(input.name); ctx.fillStyle = "#777"; ctx.fillText(input.type, 130, y + h * 0.75); y += h; } //add + button if (this.drawButton(20, y + 2, w - 20, h - 2, "+", "#151515", "#222")) { this.showSubgraphPropertiesDialog(subnode); } } LGraphCanvas.prototype.drawSubgraphPanelRight = function (subgraph, subnode, ctx) { var num = subnode.outputs ? subnode.outputs.length : 0; var canvas_w = this.bgcanvas.width var w = 200; var h = Math.floor(LiteGraph.NODE_SLOT_HEIGHT * 1.6); ctx.fillStyle = "#111"; ctx.globalAlpha = 0.8; ctx.beginPath(); ctx.roundRect(canvas_w - w - 10, 10, w, (num + 1) * h + 50, [8]); ctx.fill(); ctx.globalAlpha = 1; ctx.fillStyle = "#888"; ctx.font = "14px Arial"; ctx.textAlign = "left"; var title_text = "Graph Outputs" var tw = ctx.measureText(title_text).width ctx.fillText(title_text, (canvas_w - tw) - 20, 34); // var pos = this.mouse; if (this.drawButton(canvas_w - w, 20, 20, 20, "X", "#151515")) { this.closeSubgraph(); return; } var y = 50; ctx.font = "14px Arial"; if (subnode.outputs) for (var i = 0; i < subnode.outputs.length; ++i) { var output = subnode.outputs[i]; if (output.not_subgraph_input) continue; //output button clicked if (this.drawButton(canvas_w - w, y + 2, w - 20, h - 2)) { var type = subnode.constructor.output_node_type || "graph/output"; this.graph.beforeChange(); var newnode = LiteGraph.createNode(type); if (newnode) { subgraph.add(newnode); this.block_click = false; this.last_click_position = null; this.selectNodes([newnode]); this.node_dragged = newnode; this.dragging_canvas = false; newnode.setProperty("name", output.name); newnode.setProperty("type", output.type); this.node_dragged.pos[0] = this.graph_mouse[0] - 5; this.node_dragged.pos[1] = this.graph_mouse[1] - 5; this.graph.afterChange(); } else console.error("graph input node not found:", type); } ctx.fillStyle = "#9C9"; ctx.beginPath(); ctx.arc(canvas_w - w + 16, y + h * 0.5, 5, 0, 2 * Math.PI); ctx.fill(); ctx.fillStyle = "#AAA"; ctx.fillText(output.name, canvas_w - w + 30, y + h * 0.75); // var tw = ctx.measureText(input.name); ctx.fillStyle = "#777"; ctx.fillText(output.type, canvas_w - w + 130, y + h * 0.75); y += h; } //add + button if (this.drawButton(canvas_w - w, y + 2, w - 20, h - 2, "+", "#151515", "#222")) { this.showSubgraphPropertiesDialogRight(subnode); } } //Draws a button into the canvas overlay and computes if it was clicked using the immediate gui paradigm LGraphCanvas.prototype.drawButton = function( x,y,w,h, text, bgcolor, hovercolor, textcolor ) { var ctx = this.ctx; bgcolor = bgcolor || LiteGraph.NODE_DEFAULT_COLOR; hovercolor = hovercolor || "#555"; textcolor = textcolor || LiteGraph.NODE_TEXT_COLOR; var yFix = y + LiteGraph.NODE_TITLE_HEIGHT + 2; // fix the height with the title var pos = this.mouse; var hover = LiteGraph.isInsideRectangle( pos[0], pos[1], x,yFix,w,h ); pos = this.last_click_position; var clicked = pos && LiteGraph.isInsideRectangle( pos[0], pos[1], x,yFix,w,h ); ctx.fillStyle = hover ? hovercolor : bgcolor; if(clicked) ctx.fillStyle = "#AAA"; ctx.beginPath(); ctx.roundRect(x,y,w,h,[4] ); ctx.fill(); if(text != null) { if(text.constructor == String) { ctx.fillStyle = textcolor; ctx.textAlign = "center"; ctx.font = ((h * 0.65)|0) + "px Arial"; ctx.fillText( text, x + w * 0.5,y + h * 0.75 ); ctx.textAlign = "left"; } } var was_clicked = clicked && !this.block_click; if(clicked) this.blockClick(); return was_clicked; } LGraphCanvas.prototype.isAreaClicked = function( x,y,w,h, hold_click ) { var pos = this.mouse; var hover = LiteGraph.isInsideRectangle( pos[0], pos[1], x,y,w,h ); pos = this.last_click_position; var clicked = pos && LiteGraph.isInsideRectangle( pos[0], pos[1], x,y,w,h ); var was_clicked = clicked && !this.block_click; if(clicked && hold_click) this.blockClick(); return was_clicked; } /** * draws some useful stats in the corner of the canvas * @method renderInfo **/ LGraphCanvas.prototype.renderInfo = function(ctx, x, y) { x = x || 10; y = y || this.canvas.height - 80; ctx.save(); ctx.translate(x, y); ctx.font = "10px Arial"; ctx.fillStyle = "#888"; ctx.textAlign = "left"; if (this.graph) { ctx.fillText( "T: " + this.graph.globaltime.toFixed(2) + "s", 5, 13 * 1 ); ctx.fillText("I: " + this.graph.iteration, 5, 13 * 2 ); ctx.fillText("N: " + this.graph._nodes.length + " [" + this.visible_nodes.length + "]", 5, 13 * 3 ); ctx.fillText("V: " + this.graph._version, 5, 13 * 4); ctx.fillText("FPS:" + this.fps.toFixed(2), 5, 13 * 5); } else { ctx.fillText("No graph selected", 5, 13 * 1); } ctx.restore(); }; /** * draws the back canvas (the one containing the background and the connections) * @method drawBackCanvas **/ LGraphCanvas.prototype.drawBackCanvas = function() { var canvas = this.bgcanvas; if ( canvas.width != this.canvas.width || canvas.height != this.canvas.height ) { canvas.width = this.canvas.width; canvas.height = this.canvas.height; } if (!this.bgctx) { this.bgctx = this.bgcanvas.getContext("2d"); } var ctx = this.bgctx; if (ctx.start) { ctx.start(); } var viewport = this.viewport || [0,0,ctx.canvas.width,ctx.canvas.height]; //clear if (this.clear_background) { ctx.clearRect( viewport[0], viewport[1], viewport[2], viewport[3] ); } //show subgraph stack header if (this._graph_stack && this._graph_stack.length) { ctx.save(); var parent_graph = this._graph_stack[this._graph_stack.length - 1]; var subgraph_node = this.graph._subgraph_node; ctx.strokeStyle = subgraph_node.bgcolor; ctx.lineWidth = 10; ctx.strokeRect(1, 1, canvas.width - 2, canvas.height - 2); ctx.lineWidth = 1; ctx.font = "40px Arial"; ctx.textAlign = "center"; ctx.fillStyle = subgraph_node.bgcolor || "#AAA"; var title = ""; for (var i = 1; i < this._graph_stack.length; ++i) { title += this._graph_stack[i]._subgraph_node.getTitle() + " >> "; } ctx.fillText( title + subgraph_node.getTitle(), canvas.width * 0.5, 40 ); ctx.restore(); } var bg_already_painted = false; if (this.onRenderBackground) { bg_already_painted = this.onRenderBackground(canvas, ctx); } //reset in case of error if ( !this.viewport ) { ctx.restore(); ctx.setTransform(1, 0, 0, 1, 0, 0); } this.visible_links.length = 0; if (this.graph) { //apply transformations ctx.save(); this.ds.toCanvasContext(ctx); //render BG if ( this.ds.scale < 1.5 && !bg_already_painted && this.clear_background_color ) { ctx.fillStyle = this.clear_background_color; ctx.fillRect( this.visible_area[0], this.visible_area[1], this.visible_area[2], this.visible_area[3] ); } if ( this.background_image && this.ds.scale > 0.5 && !bg_already_painted ) { if (this.zoom_modify_alpha) { ctx.globalAlpha = (1.0 - 0.5 / this.ds.scale) * this.editor_alpha; } else { ctx.globalAlpha = this.editor_alpha; } ctx.imageSmoothingEnabled = ctx.imageSmoothingEnabled = false; // ctx.mozImageSmoothingEnabled = if ( !this._bg_img || this._bg_img.name != this.background_image ) { this._bg_img = new Image(); this._bg_img.name = this.background_image; this._bg_img.src = this.background_image; var that = this; this._bg_img.onload = function() { that.draw(true, true); }; } var pattern = null; if (this._pattern == null && this._bg_img.width > 0) { pattern = ctx.createPattern(this._bg_img, "repeat"); this._pattern_img = this._bg_img; this._pattern = pattern; } else { pattern = this._pattern; } if (pattern) { ctx.fillStyle = pattern; ctx.fillRect( this.visible_area[0], this.visible_area[1], this.visible_area[2], this.visible_area[3] ); ctx.fillStyle = "transparent"; } ctx.globalAlpha = 1.0; ctx.imageSmoothingEnabled = ctx.imageSmoothingEnabled = true; //= ctx.mozImageSmoothingEnabled } //groups if (this.graph._groups.length && !this.live_mode) { this.drawGroups(canvas, ctx); } if (this.onDrawBackground) { this.onDrawBackground(ctx, this.visible_area); } if (this.onBackgroundRender) { //LEGACY console.error( "WARNING! onBackgroundRender deprecated, now is named onDrawBackground " ); this.onBackgroundRender = null; } //DEBUG: show clipping area //ctx.fillStyle = "red"; //ctx.fillRect( this.visible_area[0] + 10, this.visible_area[1] + 10, this.visible_area[2] - 20, this.visible_area[3] - 20); //bg if (this.render_canvas_border) { ctx.strokeStyle = "#235"; ctx.strokeRect(0, 0, canvas.width, canvas.height); } if (this.render_connections_shadows) { ctx.shadowColor = "#000"; ctx.shadowOffsetX = 0; ctx.shadowOffsetY = 0; ctx.shadowBlur = 6; } else { ctx.shadowColor = "rgba(0,0,0,0)"; } //draw connections if (!this.live_mode) { this.drawConnections(ctx); } ctx.shadowColor = "rgba(0,0,0,0)"; //restore state ctx.restore(); } if (ctx.finish) { ctx.finish(); } this.dirty_bgcanvas = false; this.dirty_canvas = true; //to force to repaint the front canvas with the bgcanvas }; var temp_vec2 = new Float32Array(2); /** * draws the given node inside the canvas * @method drawNode **/ LGraphCanvas.prototype.drawNode = function(node, ctx) { var glow = false; this.current_node = node; var color = node.color || node.constructor.color || LiteGraph.NODE_DEFAULT_COLOR; var bgcolor = node.bgcolor || node.constructor.bgcolor || LiteGraph.NODE_DEFAULT_BGCOLOR; //shadow and glow if (node.mouseOver) { glow = true; } var low_quality = this.ds.scale < 0.6; //zoomed out //only render if it forces it to do it if (this.live_mode) { if (!node.flags.collapsed) { ctx.shadowColor = "transparent"; if (node.onDrawForeground) { node.onDrawForeground(ctx, this, this.canvas); } } return; } var editor_alpha = this.editor_alpha; ctx.globalAlpha = editor_alpha; if (this.render_shadows && !low_quality) { ctx.shadowColor = LiteGraph.DEFAULT_SHADOW_COLOR; ctx.shadowOffsetX = 2 * this.ds.scale; ctx.shadowOffsetY = 2 * this.ds.scale; ctx.shadowBlur = 3 * this.ds.scale; } else { ctx.shadowColor = "transparent"; } //custom draw collapsed method (draw after shadows because they are affected) if ( node.flags.collapsed && node.onDrawCollapsed && node.onDrawCollapsed(ctx, this) == true ) { return; } //clip if required (mask) var shape = node._shape || LiteGraph.BOX_SHAPE; var size = temp_vec2; temp_vec2.set(node.size); var horizontal = node.horizontal; // || node.flags.horizontal; if (node.flags.collapsed) { ctx.font = this.inner_text_font; var title = node.getTitle ? node.getTitle() : node.title; if (title != null) { node._collapsed_width = Math.min( node.size[0], ctx.measureText(title).width + LiteGraph.NODE_TITLE_HEIGHT * 2 ); //LiteGraph.NODE_COLLAPSED_WIDTH; size[0] = node._collapsed_width; size[1] = 0; } } if (node.clip_area) { //Start clipping ctx.save(); ctx.beginPath(); if (shape == LiteGraph.BOX_SHAPE) { ctx.rect(0, 0, size[0], size[1]); } else if (shape == LiteGraph.ROUND_SHAPE) { ctx.roundRect(0, 0, size[0], size[1], [10]); } else if (shape == LiteGraph.CIRCLE_SHAPE) { ctx.arc( size[0] * 0.5, size[1] * 0.5, size[0] * 0.5, 0, Math.PI * 2 ); } ctx.clip(); } //draw shape if (node.has_errors) { bgcolor = "red"; } this.drawNodeShape( node, ctx, size, color, bgcolor, node.is_selected, node.mouseOver ); ctx.shadowColor = "transparent"; //draw foreground if (node.onDrawForeground) { node.onDrawForeground(ctx, this, this.canvas); } //connection slots ctx.textAlign = horizontal ? "center" : "left"; ctx.font = this.inner_text_font; var render_text = !low_quality; var out_slot = this.connecting_output; var in_slot = this.connecting_input; ctx.lineWidth = 1; var max_y = 0; var slot_pos = new Float32Array(2); //to reuse //render inputs and outputs if (!node.flags.collapsed) { //input connection slots if (node.inputs) { for (var i = 0; i < node.inputs.length; i++) { var slot = node.inputs[i]; var slot_type = slot.type; var slot_shape = slot.shape; ctx.globalAlpha = editor_alpha; //change opacity of incompatible slots when dragging a connection if ( this.connecting_output && !LiteGraph.isValidConnection( slot.type , out_slot.type) ) { ctx.globalAlpha = 0.4 * editor_alpha; } ctx.fillStyle = slot.link != null ? slot.color_on || this.default_connection_color_byType[slot_type] || this.default_connection_color.input_on : slot.color_off || this.default_connection_color_byTypeOff[slot_type] || this.default_connection_color_byType[slot_type] || this.default_connection_color.input_off; var pos = node.getConnectionPos(true, i, slot_pos); pos[0] -= node.pos[0]; pos[1] -= node.pos[1]; if (max_y < pos[1] + LiteGraph.NODE_SLOT_HEIGHT * 0.5) { max_y = pos[1] + LiteGraph.NODE_SLOT_HEIGHT * 0.5; } ctx.beginPath(); if (slot_type == "array"){ slot_shape = LiteGraph.GRID_SHAPE; // place in addInput? addOutput instead? } var doStroke = true; if ( slot.type === LiteGraph.EVENT || slot.shape === LiteGraph.BOX_SHAPE ) { if (horizontal) { ctx.rect( pos[0] - 5 + 0.5, pos[1] - 8 + 0.5, 10, 14 ); } else { ctx.rect( pos[0] - 6 + 0.5, pos[1] - 5 + 0.5, 14, 10 ); } } else if (slot_shape === LiteGraph.ARROW_SHAPE) { ctx.moveTo(pos[0] + 8, pos[1] + 0.5); ctx.lineTo(pos[0] - 4, pos[1] + 6 + 0.5); ctx.lineTo(pos[0] - 4, pos[1] - 6 + 0.5); ctx.closePath(); } else if (slot_shape === LiteGraph.GRID_SHAPE) { ctx.rect(pos[0] - 4, pos[1] - 4, 2, 2); ctx.rect(pos[0] - 1, pos[1] - 4, 2, 2); ctx.rect(pos[0] + 2, pos[1] - 4, 2, 2); ctx.rect(pos[0] - 4, pos[1] - 1, 2, 2); ctx.rect(pos[0] - 1, pos[1] - 1, 2, 2); ctx.rect(pos[0] + 2, pos[1] - 1, 2, 2); ctx.rect(pos[0] - 4, pos[1] + 2, 2, 2); ctx.rect(pos[0] - 1, pos[1] + 2, 2, 2); ctx.rect(pos[0] + 2, pos[1] + 2, 2, 2); doStroke = false; } else { if(low_quality) ctx.rect(pos[0] - 4, pos[1] - 4, 8, 8 ); //faster else ctx.arc(pos[0], pos[1], 4, 0, Math.PI * 2); } ctx.fill(); //render name if (render_text) { var text = slot.label != null ? slot.label : slot.name; if (text) { ctx.fillStyle = LiteGraph.NODE_TEXT_COLOR; if (horizontal || slot.dir == LiteGraph.UP) { ctx.fillText(text, pos[0], pos[1] - 10); } else { ctx.fillText(text, pos[0] + 10, pos[1] + 5); } } } } } //output connection slots ctx.textAlign = horizontal ? "center" : "right"; ctx.strokeStyle = "black"; if (node.outputs) { for (var i = 0; i < node.outputs.length; i++) { var slot = node.outputs[i]; var slot_type = slot.type; var slot_shape = slot.shape; //change opacity of incompatible slots when dragging a connection if (this.connecting_input && !LiteGraph.isValidConnection( slot_type , in_slot.type) ) { ctx.globalAlpha = 0.4 * editor_alpha; } var pos = node.getConnectionPos(false, i, slot_pos); pos[0] -= node.pos[0]; pos[1] -= node.pos[1]; if (max_y < pos[1] + LiteGraph.NODE_SLOT_HEIGHT * 0.5) { max_y = pos[1] + LiteGraph.NODE_SLOT_HEIGHT * 0.5; } ctx.fillStyle = slot.links && slot.links.length ? slot.color_on || this.default_connection_color_byType[slot_type] || this.default_connection_color.output_on : slot.color_off || this.default_connection_color_byTypeOff[slot_type] || this.default_connection_color_byType[slot_type] || this.default_connection_color.output_off; ctx.beginPath(); //ctx.rect( node.size[0] - 14,i*14,10,10); if (slot_type == "array"){ slot_shape = LiteGraph.GRID_SHAPE; } var doStroke = true; if ( slot_type === LiteGraph.EVENT || slot_shape === LiteGraph.BOX_SHAPE ) { if (horizontal) { ctx.rect( pos[0] - 5 + 0.5, pos[1] - 8 + 0.5, 10, 14 ); } else { ctx.rect( pos[0] - 6 + 0.5, pos[1] - 5 + 0.5, 14, 10 ); } } else if (slot_shape === LiteGraph.ARROW_SHAPE) { ctx.moveTo(pos[0] + 8, pos[1] + 0.5); ctx.lineTo(pos[0] - 4, pos[1] + 6 + 0.5); ctx.lineTo(pos[0] - 4, pos[1] - 6 + 0.5); ctx.closePath(); } else if (slot_shape === LiteGraph.GRID_SHAPE) { ctx.rect(pos[0] - 4, pos[1] - 4, 2, 2); ctx.rect(pos[0] - 1, pos[1] - 4, 2, 2); ctx.rect(pos[0] + 2, pos[1] - 4, 2, 2); ctx.rect(pos[0] - 4, pos[1] - 1, 2, 2); ctx.rect(pos[0] - 1, pos[1] - 1, 2, 2); ctx.rect(pos[0] + 2, pos[1] - 1, 2, 2); ctx.rect(pos[0] - 4, pos[1] + 2, 2, 2); ctx.rect(pos[0] - 1, pos[1] + 2, 2, 2); ctx.rect(pos[0] + 2, pos[1] + 2, 2, 2); doStroke = false; } else { if(low_quality) ctx.rect(pos[0] - 4, pos[1] - 4, 8, 8 ); else ctx.arc(pos[0], pos[1], 4, 0, Math.PI * 2); } //trigger //if(slot.node_id != null && slot.slot == -1) // ctx.fillStyle = "#F85"; //if(slot.links != null && slot.links.length) ctx.fill(); if(!low_quality && doStroke) ctx.stroke(); //render output name if (render_text) { var text = slot.label != null ? slot.label : slot.name; if (text) { ctx.fillStyle = LiteGraph.NODE_TEXT_COLOR; if (horizontal || slot.dir == LiteGraph.DOWN) { ctx.fillText(text, pos[0], pos[1] - 8); } else { ctx.fillText(text, pos[0] - 10, pos[1] + 5); } } } } } ctx.textAlign = "left"; ctx.globalAlpha = 1; if (node.widgets) { var widgets_y = max_y; if (horizontal || node.widgets_up) { widgets_y = 2; } if( node.widgets_start_y != null ) widgets_y = node.widgets_start_y; this.drawNodeWidgets( node, widgets_y, ctx, this.node_widget && this.node_widget[0] == node ? this.node_widget[1] : null ); } } else if (this.render_collapsed_slots) { //if collapsed var input_slot = null; var output_slot = null; //get first connected slot to render if (node.inputs) { for (var i = 0; i < node.inputs.length; i++) { var slot = node.inputs[i]; if (slot.link == null) { continue; } input_slot = slot; break; } } if (node.outputs) { for (var i = 0; i < node.outputs.length; i++) { var slot = node.outputs[i]; if (!slot.links || !slot.links.length) { continue; } output_slot = slot; } } if (input_slot) { var x = 0; var y = LiteGraph.NODE_TITLE_HEIGHT * -0.5; //center if (horizontal) { x = node._collapsed_width * 0.5; y = -LiteGraph.NODE_TITLE_HEIGHT; } ctx.fillStyle = "#686"; ctx.beginPath(); if ( slot.type === LiteGraph.EVENT || slot.shape === LiteGraph.BOX_SHAPE ) { ctx.rect(x - 7 + 0.5, y - 4, 14, 8); } else if (slot.shape === LiteGraph.ARROW_SHAPE) { ctx.moveTo(x + 8, y); ctx.lineTo(x + -4, y - 4); ctx.lineTo(x + -4, y + 4); ctx.closePath(); } else { ctx.arc(x, y, 4, 0, Math.PI * 2); } ctx.fill(); } if (output_slot) { var x = node._collapsed_width; var y = LiteGraph.NODE_TITLE_HEIGHT * -0.5; //center if (horizontal) { x = node._collapsed_width * 0.5; y = 0; } ctx.fillStyle = "#686"; ctx.strokeStyle = "black"; ctx.beginPath(); if ( slot.type === LiteGraph.EVENT || slot.shape === LiteGraph.BOX_SHAPE ) { ctx.rect(x - 7 + 0.5, y - 4, 14, 8); } else if (slot.shape === LiteGraph.ARROW_SHAPE) { ctx.moveTo(x + 6, y); ctx.lineTo(x - 6, y - 4); ctx.lineTo(x - 6, y + 4); ctx.closePath(); } else { ctx.arc(x, y, 4, 0, Math.PI * 2); } ctx.fill(); //ctx.stroke(); } } if (node.clip_area) { ctx.restore(); } ctx.globalAlpha = 1.0; }; //used by this.over_link_center LGraphCanvas.prototype.drawLinkTooltip = function( ctx, link ) { var pos = link._pos; ctx.fillStyle = "black"; ctx.beginPath(); ctx.arc( pos[0], pos[1], 3, 0, Math.PI * 2 ); ctx.fill(); if(link.data == null) return; if(this.onDrawLinkTooltip) if( this.onDrawLinkTooltip(ctx,link,this) == true ) return; var data = link.data; var text = null; if( data.constructor === Number ) text = data.toFixed(2); else if( data.constructor === String ) text = "\"" + data + "\""; else if( data.constructor === Boolean ) text = String(data); else if (data.toToolTip) text = data.toToolTip(); else text = "[" + data.constructor.name + "]"; if(text == null) return; text = text.substr(0,30); //avoid weird ctx.font = "14px Courier New"; var info = ctx.measureText(text); var w = info.width + 20; var h = 24; ctx.shadowColor = "black"; ctx.shadowOffsetX = 2; ctx.shadowOffsetY = 2; ctx.shadowBlur = 3; ctx.fillStyle = "#454"; ctx.beginPath(); ctx.roundRect( pos[0] - w*0.5, pos[1] - 15 - h, w, h, [3]); ctx.moveTo( pos[0] - 10, pos[1] - 15 ); ctx.lineTo( pos[0] + 10, pos[1] - 15 ); ctx.lineTo( pos[0], pos[1] - 5 ); ctx.fill(); ctx.shadowColor = "transparent"; ctx.textAlign = "center"; ctx.fillStyle = "#CEC"; ctx.fillText(text, pos[0], pos[1] - 15 - h * 0.3); } /** * draws the shape of the given node in the canvas * @method drawNodeShape **/ var tmp_area = new Float32Array(4); LGraphCanvas.prototype.drawNodeShape = function( node, ctx, size, fgcolor, bgcolor, selected, mouse_over ) { //bg rect ctx.strokeStyle = fgcolor; ctx.fillStyle = bgcolor; var title_height = LiteGraph.NODE_TITLE_HEIGHT; var low_quality = this.ds.scale < 0.5; //render node area depending on shape var shape = node._shape || node.constructor.shape || LiteGraph.ROUND_SHAPE; var title_mode = node.constructor.title_mode; var render_title = true; if (title_mode == LiteGraph.TRANSPARENT_TITLE || title_mode == LiteGraph.NO_TITLE) { render_title = false; } else if (title_mode == LiteGraph.AUTOHIDE_TITLE && mouse_over) { render_title = true; } var area = tmp_area; area[0] = 0; //x area[1] = render_title ? -title_height : 0; //y area[2] = size[0] + 1; //w area[3] = render_title ? size[1] + title_height : size[1]; //h var old_alpha = ctx.globalAlpha; //full node shape //if(node.flags.collapsed) { ctx.beginPath(); if (shape == LiteGraph.BOX_SHAPE || low_quality) { ctx.fillRect(area[0], area[1], area[2], area[3]); } else if ( shape == LiteGraph.ROUND_SHAPE || shape == LiteGraph.CARD_SHAPE ) { ctx.roundRect( area[0], area[1], area[2], area[3], shape == LiteGraph.CARD_SHAPE ? [this.round_radius,this.round_radius,0,0] : [this.round_radius] ); } else if (shape == LiteGraph.CIRCLE_SHAPE) { ctx.arc( size[0] * 0.5, size[1] * 0.5, size[0] * 0.5, 0, Math.PI * 2 ); } ctx.fill(); //separator if(!node.flags.collapsed && render_title) { ctx.shadowColor = "transparent"; ctx.fillStyle = "rgba(0,0,0,0.2)"; ctx.fillRect(0, -1, area[2], 2); } } ctx.shadowColor = "transparent"; if (node.onDrawBackground) { node.onDrawBackground(ctx, this, this.canvas, this.graph_mouse ); } //title bg (remember, it is rendered ABOVE the node) if (render_title || title_mode == LiteGraph.TRANSPARENT_TITLE) { //title bar if (node.onDrawTitleBar) { node.onDrawTitleBar( ctx, title_height, size, this.ds.scale, fgcolor ); } else if ( title_mode != LiteGraph.TRANSPARENT_TITLE && (node.constructor.title_color || this.render_title_colored) ) { var title_color = node.constructor.title_color || fgcolor; if (node.flags.collapsed) { ctx.shadowColor = LiteGraph.DEFAULT_SHADOW_COLOR; } //* gradient test if (this.use_gradients) { var grad = LGraphCanvas.gradients[title_color]; if (!grad) { grad = LGraphCanvas.gradients[ title_color ] = ctx.createLinearGradient(0, 0, 400, 0); grad.addColorStop(0, title_color); // TODO refactor: validate color !! prevent DOMException grad.addColorStop(1, "#000"); } ctx.fillStyle = grad; } else { ctx.fillStyle = title_color; } //ctx.globalAlpha = 0.5 * old_alpha; ctx.beginPath(); if (shape == LiteGraph.BOX_SHAPE || low_quality) { ctx.rect(0, -title_height, size[0] + 1, title_height); } else if ( shape == LiteGraph.ROUND_SHAPE || shape == LiteGraph.CARD_SHAPE ) { ctx.roundRect( 0, -title_height, size[0] + 1, title_height, node.flags.collapsed ? [this.round_radius] : [this.round_radius,this.round_radius,0,0] ); } ctx.fill(); ctx.shadowColor = "transparent"; } var colState = false; if (LiteGraph.node_box_coloured_by_mode){ if(LiteGraph.NODE_MODES_COLORS[node.mode]){ colState = LiteGraph.NODE_MODES_COLORS[node.mode]; } } if (LiteGraph.node_box_coloured_when_on){ colState = node.action_triggered ? "#FFF" : (node.execute_triggered ? "#AAA" : colState); } //title box var box_size = 10; if (node.onDrawTitleBox) { node.onDrawTitleBox(ctx, title_height, size, this.ds.scale); } else if ( shape == LiteGraph.ROUND_SHAPE || shape == LiteGraph.CIRCLE_SHAPE || shape == LiteGraph.CARD_SHAPE ) { if (low_quality) { ctx.fillStyle = "black"; ctx.beginPath(); ctx.arc( title_height * 0.5, title_height * -0.5, box_size * 0.5 + 1, 0, Math.PI * 2 ); ctx.fill(); } ctx.fillStyle = node.boxcolor || colState || LiteGraph.NODE_DEFAULT_BOXCOLOR; if(low_quality) ctx.fillRect( title_height * 0.5 - box_size *0.5, title_height * -0.5 - box_size *0.5, box_size , box_size ); else { ctx.beginPath(); ctx.arc( title_height * 0.5, title_height * -0.5, box_size * 0.5, 0, Math.PI * 2 ); ctx.fill(); } } else { if (low_quality) { ctx.fillStyle = "black"; ctx.fillRect( (title_height - box_size) * 0.5 - 1, (title_height + box_size) * -0.5 - 1, box_size + 2, box_size + 2 ); } ctx.fillStyle = node.boxcolor || colState || LiteGraph.NODE_DEFAULT_BOXCOLOR; ctx.fillRect( (title_height - box_size) * 0.5, (title_height + box_size) * -0.5, box_size, box_size ); } ctx.globalAlpha = old_alpha; //title text if (node.onDrawTitleText) { node.onDrawTitleText( ctx, title_height, size, this.ds.scale, this.title_text_font, selected ); } if (!low_quality) { ctx.font = this.title_text_font; var title = String(node.getTitle()); if (title) { if (selected) { ctx.fillStyle = LiteGraph.NODE_SELECTED_TITLE_COLOR; } else { ctx.fillStyle = node.constructor.title_text_color || this.node_title_color; } if (node.flags.collapsed) { ctx.textAlign = "left"; var measure = ctx.measureText(title); ctx.fillText( title.substr(0,20), //avoid urls too long title_height,// + measure.width * 0.5, LiteGraph.NODE_TITLE_TEXT_Y - title_height ); ctx.textAlign = "left"; } else { ctx.textAlign = "left"; ctx.fillText( title, title_height, LiteGraph.NODE_TITLE_TEXT_Y - title_height ); } } } //subgraph box if (!node.flags.collapsed && node.subgraph && !node.skip_subgraph_button) { var w = LiteGraph.NODE_TITLE_HEIGHT; var x = node.size[0] - w; var over = LiteGraph.isInsideRectangle( this.graph_mouse[0] - node.pos[0], this.graph_mouse[1] - node.pos[1], x+2, -w+2, w-4, w-4 ); ctx.fillStyle = over ? "#888" : "#555"; if( shape == LiteGraph.BOX_SHAPE || low_quality) ctx.fillRect(x+2, -w+2, w-4, w-4); else { ctx.beginPath(); ctx.roundRect(x+2, -w+2, w-4, w-4,[4]); ctx.fill(); } ctx.fillStyle = "#333"; ctx.beginPath(); ctx.moveTo(x + w * 0.2, -w * 0.6); ctx.lineTo(x + w * 0.8, -w * 0.6); ctx.lineTo(x + w * 0.5, -w * 0.3); ctx.fill(); } //custom title render if (node.onDrawTitle) { node.onDrawTitle(ctx); } } //render selection marker if (selected) { if (node.onBounding) { node.onBounding(area); } if (title_mode == LiteGraph.TRANSPARENT_TITLE) { area[1] -= title_height; area[3] += title_height; } ctx.lineWidth = 1; ctx.globalAlpha = 0.8; ctx.beginPath(); if (shape == LiteGraph.BOX_SHAPE) { ctx.rect( -6 + area[0], -6 + area[1], 12 + area[2], 12 + area[3] ); } else if ( shape == LiteGraph.ROUND_SHAPE || (shape == LiteGraph.CARD_SHAPE && node.flags.collapsed) ) { ctx.roundRect( -6 + area[0], -6 + area[1], 12 + area[2], 12 + area[3], [this.round_radius * 2] ); } else if (shape == LiteGraph.CARD_SHAPE) { ctx.roundRect( -6 + area[0], -6 + area[1], 12 + area[2], 12 + area[3], [this.round_radius * 2,2,this.round_radius * 2,2] ); } else if (shape == LiteGraph.CIRCLE_SHAPE) { ctx.arc( size[0] * 0.5, size[1] * 0.5, size[0] * 0.5 + 6, 0, Math.PI * 2 ); } ctx.strokeStyle = LiteGraph.NODE_BOX_OUTLINE_COLOR; ctx.stroke(); ctx.strokeStyle = fgcolor; ctx.globalAlpha = 1; } // these counter helps in conditioning drawing based on if the node has been executed or an action occurred if (node.execute_triggered>0) node.execute_triggered--; if (node.action_triggered>0) node.action_triggered--; }; var margin_area = new Float32Array(4); var link_bounding = new Float32Array(4); var tempA = new Float32Array(2); var tempB = new Float32Array(2); /** * draws every connection visible in the canvas * OPTIMIZE THIS: pre-catch connections position instead of recomputing them every time * @method drawConnections **/ LGraphCanvas.prototype.drawConnections = function(ctx) { var now = LiteGraph.getTime(); var visible_area = this.visible_area; margin_area[0] = visible_area[0] - 20; margin_area[1] = visible_area[1] - 20; margin_area[2] = visible_area[2] + 40; margin_area[3] = visible_area[3] + 40; //draw connections ctx.lineWidth = this.connections_width; ctx.fillStyle = "#AAA"; ctx.strokeStyle = "#AAA"; ctx.globalAlpha = this.editor_alpha; //for every node var nodes = this.graph._nodes; for (var n = 0, l = nodes.length; n < l; ++n) { var node = nodes[n]; //for every input (we render just inputs because it is easier as every slot can only have one input) if (!node.inputs || !node.inputs.length) { continue; } for (var i = 0; i < node.inputs.length; ++i) { var input = node.inputs[i]; if (!input || input.link == null) { continue; } var link_id = input.link; var link = this.graph.links[link_id]; if (!link) { continue; } //find link info var start_node = this.graph.getNodeById(link.origin_id); if (start_node == null) { continue; } var start_node_slot = link.origin_slot; var start_node_slotpos = null; if (start_node_slot == -1) { start_node_slotpos = [ start_node.pos[0] + 10, start_node.pos[1] + 10 ]; } else { start_node_slotpos = start_node.getConnectionPos( false, start_node_slot, tempA ); } var end_node_slotpos = node.getConnectionPos(true, i, tempB); //compute link bounding link_bounding[0] = start_node_slotpos[0]; link_bounding[1] = start_node_slotpos[1]; link_bounding[2] = end_node_slotpos[0] - start_node_slotpos[0]; link_bounding[3] = end_node_slotpos[1] - start_node_slotpos[1]; if (link_bounding[2] < 0) { link_bounding[0] += link_bounding[2]; link_bounding[2] = Math.abs(link_bounding[2]); } if (link_bounding[3] < 0) { link_bounding[1] += link_bounding[3]; link_bounding[3] = Math.abs(link_bounding[3]); } //skip links outside of the visible area of the canvas if (!overlapBounding(link_bounding, margin_area)) { continue; } var start_slot = start_node.outputs[start_node_slot]; var end_slot = node.inputs[i]; if (!start_slot || !end_slot) { continue; } var start_dir = start_slot.dir || (start_node.horizontal ? LiteGraph.DOWN : LiteGraph.RIGHT); var end_dir = end_slot.dir || (node.horizontal ? LiteGraph.UP : LiteGraph.LEFT); this.renderLink( ctx, start_node_slotpos, end_node_slotpos, link, false, 0, null, start_dir, end_dir ); //event triggered rendered on top if (link && link._last_time && now - link._last_time < 1000) { var f = 2.0 - (now - link._last_time) * 0.002; var tmp = ctx.globalAlpha; ctx.globalAlpha = tmp * f; this.renderLink( ctx, start_node_slotpos, end_node_slotpos, link, true, f, "white", start_dir, end_dir ); ctx.globalAlpha = tmp; } } } ctx.globalAlpha = 1; }; /** * draws a link between two points * @method renderLink * @param {vec2} a start pos * @param {vec2} b end pos * @param {Object} link the link object with all the link info * @param {boolean} skip_border ignore the shadow of the link * @param {boolean} flow show flow animation (for events) * @param {string} color the color for the link * @param {number} start_dir the direction enum * @param {number} end_dir the direction enum * @param {number} num_sublines number of sublines (useful to represent vec3 or rgb) **/ LGraphCanvas.prototype.renderLink = function( ctx, a, b, link, skip_border, flow, color, start_dir, end_dir, num_sublines ) { if (link) { this.visible_links.push(link); } //choose color if (!color && link) { color = link.color || LGraphCanvas.link_type_colors[link.type]; } if (!color) { color = this.default_link_color; } if (link != null && this.highlighted_links[link.id]) { color = "#FFF"; } start_dir = start_dir || LiteGraph.RIGHT; end_dir = end_dir || LiteGraph.LEFT; var dist = distance(a, b); if (this.render_connections_border && this.ds.scale > 0.6) { ctx.lineWidth = this.connections_width + 4; } ctx.lineJoin = "round"; num_sublines = num_sublines || 1; if (num_sublines > 1) { ctx.lineWidth = 0.5; } //begin line shape ctx.beginPath(); for (var i = 0; i < num_sublines; i += 1) { var offsety = (i - (num_sublines - 1) * 0.5) * 5; if (this.links_render_mode == LiteGraph.SPLINE_LINK) { ctx.moveTo(a[0], a[1] + offsety); var start_offset_x = 0; var start_offset_y = 0; var end_offset_x = 0; var end_offset_y = 0; switch (start_dir) { case LiteGraph.LEFT: start_offset_x = dist * -0.25; break; case LiteGraph.RIGHT: start_offset_x = dist * 0.25; break; case LiteGraph.UP: start_offset_y = dist * -0.25; break; case LiteGraph.DOWN: start_offset_y = dist * 0.25; break; } switch (end_dir) { case LiteGraph.LEFT: end_offset_x = dist * -0.25; break; case LiteGraph.RIGHT: end_offset_x = dist * 0.25; break; case LiteGraph.UP: end_offset_y = dist * -0.25; break; case LiteGraph.DOWN: end_offset_y = dist * 0.25; break; } ctx.bezierCurveTo( a[0] + start_offset_x, a[1] + start_offset_y + offsety, b[0] + end_offset_x, b[1] + end_offset_y + offsety, b[0], b[1] + offsety ); } else if (this.links_render_mode == LiteGraph.LINEAR_LINK) { ctx.moveTo(a[0], a[1] + offsety); var start_offset_x = 0; var start_offset_y = 0; var end_offset_x = 0; var end_offset_y = 0; switch (start_dir) { case LiteGraph.LEFT: start_offset_x = -1; break; case LiteGraph.RIGHT: start_offset_x = 1; break; case LiteGraph.UP: start_offset_y = -1; break; case LiteGraph.DOWN: start_offset_y = 1; break; } switch (end_dir) { case LiteGraph.LEFT: end_offset_x = -1; break; case LiteGraph.RIGHT: end_offset_x = 1; break; case LiteGraph.UP: end_offset_y = -1; break; case LiteGraph.DOWN: end_offset_y = 1; break; } var l = 15; ctx.lineTo( a[0] + start_offset_x * l, a[1] + start_offset_y * l + offsety ); ctx.lineTo( b[0] + end_offset_x * l, b[1] + end_offset_y * l + offsety ); ctx.lineTo(b[0], b[1] + offsety); } else if (this.links_render_mode == LiteGraph.STRAIGHT_LINK) { ctx.moveTo(a[0], a[1]); var start_x = a[0]; var start_y = a[1]; var end_x = b[0]; var end_y = b[1]; if (start_dir == LiteGraph.RIGHT) { start_x += 10; } else { start_y += 10; } if (end_dir == LiteGraph.LEFT) { end_x -= 10; } else { end_y -= 10; } ctx.lineTo(start_x, start_y); ctx.lineTo((start_x + end_x) * 0.5, start_y); ctx.lineTo((start_x + end_x) * 0.5, end_y); ctx.lineTo(end_x, end_y); ctx.lineTo(b[0], b[1]); } else { return; } //unknown } //rendering the outline of the connection can be a little bit slow if ( this.render_connections_border && this.ds.scale > 0.6 && !skip_border ) { ctx.strokeStyle = "rgba(0,0,0,0.5)"; ctx.stroke(); } ctx.lineWidth = this.connections_width; ctx.fillStyle = ctx.strokeStyle = color; ctx.stroke(); //end line shape var pos = this.computeConnectionPoint(a, b, 0.5, start_dir, end_dir); if (link && link._pos) { link._pos[0] = pos[0]; link._pos[1] = pos[1]; } //render arrow in the middle if ( this.ds.scale >= 0.6 && this.highquality_render && end_dir != LiteGraph.CENTER ) { //render arrow if (this.render_connection_arrows) { //compute two points in the connection var posA = this.computeConnectionPoint( a, b, 0.25, start_dir, end_dir ); var posB = this.computeConnectionPoint( a, b, 0.26, start_dir, end_dir ); var posC = this.computeConnectionPoint( a, b, 0.75, start_dir, end_dir ); var posD = this.computeConnectionPoint( a, b, 0.76, start_dir, end_dir ); //compute the angle between them so the arrow points in the right direction var angleA = 0; var angleB = 0; if (this.render_curved_connections) { angleA = -Math.atan2(posB[0] - posA[0], posB[1] - posA[1]); angleB = -Math.atan2(posD[0] - posC[0], posD[1] - posC[1]); } else { angleB = angleA = b[1] > a[1] ? 0 : Math.PI; } //render arrow ctx.save(); ctx.translate(posA[0], posA[1]); ctx.rotate(angleA); ctx.beginPath(); ctx.moveTo(-5, -3); ctx.lineTo(0, +7); ctx.lineTo(+5, -3); ctx.fill(); ctx.restore(); ctx.save(); ctx.translate(posC[0], posC[1]); ctx.rotate(angleB); ctx.beginPath(); ctx.moveTo(-5, -3); ctx.lineTo(0, +7); ctx.lineTo(+5, -3); ctx.fill(); ctx.restore(); } //circle ctx.beginPath(); ctx.arc(pos[0], pos[1], 5, 0, Math.PI * 2); ctx.fill(); } //render flowing points if (flow) { ctx.fillStyle = color; for (var i = 0; i < 5; ++i) { var f = (LiteGraph.getTime() * 0.001 + i * 0.2) % 1; var pos = this.computeConnectionPoint( a, b, f, start_dir, end_dir ); ctx.beginPath(); ctx.arc(pos[0], pos[1], 5, 0, 2 * Math.PI); ctx.fill(); } } }; //returns the link center point based on curvature LGraphCanvas.prototype.computeConnectionPoint = function( a, b, t, start_dir, end_dir ) { start_dir = start_dir || LiteGraph.RIGHT; end_dir = end_dir || LiteGraph.LEFT; var dist = distance(a, b); var p0 = a; var p1 = [a[0], a[1]]; var p2 = [b[0], b[1]]; var p3 = b; switch (start_dir) { case LiteGraph.LEFT: p1[0] += dist * -0.25; break; case LiteGraph.RIGHT: p1[0] += dist * 0.25; break; case LiteGraph.UP: p1[1] += dist * -0.25; break; case LiteGraph.DOWN: p1[1] += dist * 0.25; break; } switch (end_dir) { case LiteGraph.LEFT: p2[0] += dist * -0.25; break; case LiteGraph.RIGHT: p2[0] += dist * 0.25; break; case LiteGraph.UP: p2[1] += dist * -0.25; break; case LiteGraph.DOWN: p2[1] += dist * 0.25; break; } var c1 = (1 - t) * (1 - t) * (1 - t); var c2 = 3 * ((1 - t) * (1 - t)) * t; var c3 = 3 * (1 - t) * (t * t); var c4 = t * t * t; var x = c1 * p0[0] + c2 * p1[0] + c3 * p2[0] + c4 * p3[0]; var y = c1 * p0[1] + c2 * p1[1] + c3 * p2[1] + c4 * p3[1]; return [x, y]; }; LGraphCanvas.prototype.drawExecutionOrder = function(ctx) { ctx.shadowColor = "transparent"; ctx.globalAlpha = 0.25; ctx.textAlign = "center"; ctx.strokeStyle = "white"; ctx.globalAlpha = 0.75; var visible_nodes = this.visible_nodes; for (var i = 0; i < visible_nodes.length; ++i) { var node = visible_nodes[i]; ctx.fillStyle = "black"; ctx.fillRect( node.pos[0] - LiteGraph.NODE_TITLE_HEIGHT, node.pos[1] - LiteGraph.NODE_TITLE_HEIGHT, LiteGraph.NODE_TITLE_HEIGHT, LiteGraph.NODE_TITLE_HEIGHT ); if (node.order == 0) { ctx.strokeRect( node.pos[0] - LiteGraph.NODE_TITLE_HEIGHT + 0.5, node.pos[1] - LiteGraph.NODE_TITLE_HEIGHT + 0.5, LiteGraph.NODE_TITLE_HEIGHT, LiteGraph.NODE_TITLE_HEIGHT ); } ctx.fillStyle = "#FFF"; ctx.fillText( node.order, node.pos[0] + LiteGraph.NODE_TITLE_HEIGHT * -0.5, node.pos[1] - 6 ); } ctx.globalAlpha = 1; }; /** * draws the widgets stored inside a node * @method drawNodeWidgets **/ LGraphCanvas.prototype.drawNodeWidgets = function( node, posY, ctx, active_widget ) { if (!node.widgets || !node.widgets.length) { return 0; } var width = node.size[0]; var widgets = node.widgets; posY += 2; var H = LiteGraph.NODE_WIDGET_HEIGHT; var show_text = this.ds.scale > 0.5; ctx.save(); ctx.globalAlpha = this.editor_alpha; var outline_color = LiteGraph.WIDGET_OUTLINE_COLOR; var background_color = LiteGraph.WIDGET_BGCOLOR; var text_color = LiteGraph.WIDGET_TEXT_COLOR; var secondary_text_color = LiteGraph.WIDGET_SECONDARY_TEXT_COLOR; var margin = 15; for (var i = 0; i < widgets.length; ++i) { var w = widgets[i]; var y = posY; if (w.y) { y = w.y; } w.last_y = y; ctx.strokeStyle = outline_color; ctx.fillStyle = "#222"; ctx.textAlign = "left"; //ctx.lineWidth = 2; if(w.disabled) ctx.globalAlpha *= 0.5; var widget_width = w.width || width; switch (w.type) { case "button": if (w.clicked) { ctx.fillStyle = "#AAA"; w.clicked = false; this.dirty_canvas = true; } ctx.fillRect(margin, y, widget_width - margin * 2, H); if(show_text && !w.disabled) ctx.strokeRect( margin, y, widget_width - margin * 2, H ); if (show_text) { ctx.textAlign = "center"; ctx.fillStyle = text_color; ctx.fillText(w.name, widget_width * 0.5, y + H * 0.7); } break; case "toggle": ctx.textAlign = "left"; ctx.strokeStyle = outline_color; ctx.fillStyle = background_color; ctx.beginPath(); if (show_text) ctx.roundRect(margin, y, widget_width - margin * 2, H, [H * 0.5]); else ctx.rect(margin, y, widget_width - margin * 2, H ); ctx.fill(); if(show_text && !w.disabled) ctx.stroke(); ctx.fillStyle = w.value ? "#89A" : "#333"; ctx.beginPath(); ctx.arc( widget_width - margin * 2, y + H * 0.5, H * 0.36, 0, Math.PI * 2 ); ctx.fill(); if (show_text) { ctx.fillStyle = secondary_text_color; if (w.name != null) { ctx.fillText(w.name, margin * 2, y + H * 0.7); } ctx.fillStyle = w.value ? text_color : secondary_text_color; ctx.textAlign = "right"; ctx.fillText( w.value ? w.options.on || "true" : w.options.off || "false", widget_width - 40, y + H * 0.7 ); } break; case "slider": ctx.fillStyle = background_color; ctx.fillRect(margin, y, widget_width - margin * 2, H); var range = w.options.max - w.options.min; var nvalue = (w.value - w.options.min) / range; if(nvalue < 0.0) nvalue = 0.0; if(nvalue > 1.0) nvalue = 1.0; ctx.fillStyle = w.options.hasOwnProperty("slider_color") ? w.options.slider_color : (active_widget == w ? "#89A" : "#678"); ctx.fillRect(margin, y, nvalue * (widget_width - margin * 2), H); if(show_text && !w.disabled) ctx.strokeRect(margin, y, widget_width - margin * 2, H); if (w.marker) { var marker_nvalue = (w.marker - w.options.min) / range; if(marker_nvalue < 0.0) marker_nvalue = 0.0; if(marker_nvalue > 1.0) marker_nvalue = 1.0; ctx.fillStyle = w.options.hasOwnProperty("marker_color") ? w.options.marker_color : "#AA9"; ctx.fillRect( margin + marker_nvalue * (widget_width - margin * 2), y, 2, H ); } if (show_text) { ctx.textAlign = "center"; ctx.fillStyle = text_color; ctx.fillText( w.name + " " + Number(w.value).toFixed(3), widget_width * 0.5, y + H * 0.7 ); } break; case "number": case "combo": ctx.textAlign = "left"; ctx.strokeStyle = outline_color; ctx.fillStyle = background_color; ctx.beginPath(); if(show_text) ctx.roundRect(margin, y, widget_width - margin * 2, H, [H * 0.5] ); else ctx.rect(margin, y, widget_width - margin * 2, H ); ctx.fill(); if (show_text) { if(!w.disabled) ctx.stroke(); ctx.fillStyle = text_color; if(!w.disabled) { ctx.beginPath(); ctx.moveTo(margin + 16, y + 5); ctx.lineTo(margin + 6, y + H * 0.5); ctx.lineTo(margin + 16, y + H - 5); ctx.fill(); ctx.beginPath(); ctx.moveTo(widget_width - margin - 16, y + 5); ctx.lineTo(widget_width - margin - 6, y + H * 0.5); ctx.lineTo(widget_width - margin - 16, y + H - 5); ctx.fill(); } ctx.fillStyle = secondary_text_color; ctx.fillText(w.name, margin * 2 + 5, y + H * 0.7); ctx.fillStyle = text_color; ctx.textAlign = "right"; if (w.type == "number") { ctx.fillText( Number(w.value).toFixed( w.options.precision !== undefined ? w.options.precision : 3 ), widget_width - margin * 2 - 20, y + H * 0.7 ); } else { var v = w.value; if( w.options.values ) { var values = w.options.values; if( values.constructor === Function ) values = values(); if(values && values.constructor !== Array) v = values[ w.value ]; } ctx.fillText( v, widget_width - margin * 2 - 20, y + H * 0.7 ); } } break; case "string": case "text": ctx.textAlign = "left"; ctx.strokeStyle = outline_color; ctx.fillStyle = background_color; ctx.beginPath(); if (show_text) ctx.roundRect(margin, y, widget_width - margin * 2, H, [H * 0.5]); else ctx.rect( margin, y, widget_width - margin * 2, H ); ctx.fill(); if (show_text) { if(!w.disabled) ctx.stroke(); ctx.save(); ctx.beginPath(); ctx.rect(margin, y, widget_width - margin * 2, H); ctx.clip(); //ctx.stroke(); ctx.fillStyle = secondary_text_color; if (w.name != null) { ctx.fillText(w.name, margin * 2, y + H * 0.7); } ctx.fillStyle = text_color; ctx.textAlign = "right"; ctx.fillText(String(w.value).substr(0,30), widget_width - margin * 2, y + H * 0.7); //30 chars max ctx.restore(); } break; default: if (w.draw) { w.draw(ctx, node, widget_width, y, H); } break; } posY += (w.computeSize ? w.computeSize(widget_width)[1] : H) + 4; ctx.globalAlpha = this.editor_alpha; } ctx.restore(); ctx.textAlign = "left"; }; /** * process an event on widgets * @method processNodeWidgets **/ LGraphCanvas.prototype.processNodeWidgets = function( node, pos, event, active_widget ) { if (!node.widgets || !node.widgets.length) { return null; } var x = pos[0] - node.pos[0]; var y = pos[1] - node.pos[1]; var width = node.size[0]; var that = this; var ref_window = this.getCanvasWindow(); for (var i = 0; i < node.widgets.length; ++i) { var w = node.widgets[i]; if(!w || w.disabled) continue; var widget_height = w.computeSize ? w.computeSize(width)[1] : LiteGraph.NODE_WIDGET_HEIGHT; var widget_width = w.width || width; //outside if ( w != active_widget && (x < 6 || x > widget_width - 12 || y < w.last_y || y > w.last_y + widget_height || w.last_y === undefined) ) continue; var old_value = w.value; //if ( w == active_widget || (x > 6 && x < widget_width - 12 && y > w.last_y && y < w.last_y + widget_height) ) { //inside widget switch (w.type) { case "button": if (event.type === LiteGraph.pointerevents_method+"down") { if (w.callback) { setTimeout(function() { w.callback(w, that, node, pos, event); }, 20); } w.clicked = true; this.dirty_canvas = true; } break; case "slider": var range = w.options.max - w.options.min; var nvalue = Math.clamp((x - 15) / (widget_width - 30), 0, 1); if(w.options.read_only) break; w.value = w.options.min + (w.options.max - w.options.min) * nvalue; if (w.callback) { setTimeout(function() { inner_value_change(w, w.value); }, 20); } this.dirty_canvas = true; break; case "number": case "combo": var old_value = w.value; var delta = x < 40 ? -1 : x > widget_width - 40 ? 1 : 0; var allow_scroll = true; if (delta) { if (x > -3 && x < widget_width + 3) { allow_scroll = false; } } if (allow_scroll && event.type == LiteGraph.pointerevents_method+"move" && w.type == "number") { if(event.deltaX) w.value += event.deltaX * 0.1 * (w.options.step || 1); if ( w.options.min != null && w.value < w.options.min ) { w.value = w.options.min; } if ( w.options.max != null && w.value > w.options.max ) { w.value = w.options.max; } } else if (event.type == LiteGraph.pointerevents_method+"down") { var values = w.options.values; if (values && values.constructor === Function) { values = w.options.values(w, node); } var values_list = null; if( w.type != "number") values_list = values.constructor === Array ? values : Object.keys(values); var delta = x < 40 ? -1 : x > widget_width - 40 ? 1 : 0; if (w.type == "number") { w.value += delta * 0.1 * (w.options.step || 1); if ( w.options.min != null && w.value < w.options.min ) { w.value = w.options.min; } if ( w.options.max != null && w.value > w.options.max ) { w.value = w.options.max; } } else if (delta) { //clicked in arrow, used for combos var index = -1; this.last_mouseclick = 0; //avoids dobl click event if(values.constructor === Object) index = values_list.indexOf( String( w.value ) ) + delta; else index = values_list.indexOf( w.value ) + delta; if (index >= values_list.length) { index = values_list.length - 1; } if (index < 0) { index = 0; } if( values.constructor === Array ) w.value = values[index]; else w.value = index; } else { //combo clicked var text_values = values != values_list ? Object.values(values) : values; var menu = new LiteGraph.ContextMenu(text_values, { scale: Math.max(1, this.ds.scale), event: event, className: "dark", callback: inner_clicked.bind(w) }, ref_window); function inner_clicked(v, option, event) { if(values != values_list) v = text_values.indexOf(v); this.value = v; inner_value_change(this, v); that.dirty_canvas = true; return false; } } } //end mousedown else if(event.type == LiteGraph.pointerevents_method+"up" && w.type == "number") { var delta = x < 40 ? -1 : x > widget_width - 40 ? 1 : 0; if (event.click_time < 200 && delta == 0) { this.prompt("Value",w.value,function(v) { // check if v is a valid equation or a number if (/^[0-9+\-*/()\s]+$/.test(v)) { try {//solve the equation if possible v = eval(v); } catch (e) { } } this.value = Number(v); inner_value_change(this, this.value); }.bind(w), event); } } if( old_value != w.value ) setTimeout( function() { inner_value_change(this, this.value); }.bind(w), 20 ); this.dirty_canvas = true; break; case "toggle": if (event.type == LiteGraph.pointerevents_method+"down") { w.value = !w.value; setTimeout(function() { inner_value_change(w, w.value); }, 20); } break; case "string": case "text": if (event.type == LiteGraph.pointerevents_method+"down") { this.prompt("Value",w.value,function(v) { inner_value_change(this, v); }.bind(w), event,w.options ? w.options.multiline : false ); } break; default: if (w.mouse) { this.dirty_canvas = w.mouse(event, [x, y], node); } break; } //end switch //value changed if( old_value != w.value ) { if(node.onWidgetChanged) node.onWidgetChanged( w.name,w.value,old_value,w ); node.graph._version++; } return w; }//end for function inner_value_change(widget, value) { if(widget.type == "number"){ value = Number(value); } widget.value = value; if ( widget.options && widget.options.property && node.properties[widget.options.property] !== undefined ) { node.setProperty( widget.options.property, value ); } if (widget.callback) { widget.callback(widget.value, that, node, pos, event); } } return null; }; /** * draws every group area in the background * @method drawGroups **/ LGraphCanvas.prototype.drawGroups = function(canvas, ctx) { if (!this.graph) { return; } var groups = this.graph._groups; ctx.save(); ctx.globalAlpha = 0.5 * this.editor_alpha; for (var i = 0; i < groups.length; ++i) { var group = groups[i]; if (!overlapBounding(this.visible_area, group._bounding)) { continue; } //out of the visible area ctx.fillStyle = group.color || "#335"; ctx.strokeStyle = group.color || "#335"; var pos = group._pos; var size = group._size; ctx.globalAlpha = 0.25 * this.editor_alpha; ctx.beginPath(); ctx.rect(pos[0] + 0.5, pos[1] + 0.5, size[0], size[1]); ctx.fill(); ctx.globalAlpha = this.editor_alpha; ctx.stroke(); ctx.beginPath(); ctx.moveTo(pos[0] + size[0], pos[1] + size[1]); ctx.lineTo(pos[0] + size[0] - 10, pos[1] + size[1]); ctx.lineTo(pos[0] + size[0], pos[1] + size[1] - 10); ctx.fill(); var font_size = group.font_size || LiteGraph.DEFAULT_GROUP_FONT_SIZE; ctx.font = font_size + "px Arial"; ctx.textAlign = "left"; ctx.fillText(group.title, pos[0] + 4, pos[1] + font_size); } ctx.restore(); }; LGraphCanvas.prototype.adjustNodesSize = function() { var nodes = this.graph._nodes; for (var i = 0; i < nodes.length; ++i) { nodes[i].size = nodes[i].computeSize(); } this.setDirty(true, true); }; /** * resizes the canvas to a given size, if no size is passed, then it tries to fill the parentNode * @method resize **/ LGraphCanvas.prototype.resize = function(width, height) { if (!width && !height) { var parent = this.canvas.parentNode; width = parent.offsetWidth; height = parent.offsetHeight; } if (this.canvas.width == width && this.canvas.height == height) { return; } this.canvas.width = width; this.canvas.height = height; this.bgcanvas.width = this.canvas.width; this.bgcanvas.height = this.canvas.height; this.setDirty(true, true); }; /** * switches to live mode (node shapes are not rendered, only the content) * this feature was designed when graphs where meant to create user interfaces * @method switchLiveMode **/ LGraphCanvas.prototype.switchLiveMode = function(transition) { if (!transition) { this.live_mode = !this.live_mode; this.dirty_canvas = true; this.dirty_bgcanvas = true; return; } var self = this; var delta = this.live_mode ? 1.1 : 0.9; if (this.live_mode) { this.live_mode = false; this.editor_alpha = 0.1; } var t = setInterval(function() { self.editor_alpha *= delta; self.dirty_canvas = true; self.dirty_bgcanvas = true; if (delta < 1 && self.editor_alpha < 0.01) { clearInterval(t); if (delta < 1) { self.live_mode = true; } } if (delta > 1 && self.editor_alpha > 0.99) { clearInterval(t); self.editor_alpha = 1; } }, 1); }; LGraphCanvas.prototype.onNodeSelectionChange = function(node) { return; //disabled }; /* this is an implementation for touch not in production and not ready */ /*LGraphCanvas.prototype.touchHandler = function(event) { //alert("foo"); var touches = event.changedTouches, first = touches[0], type = ""; switch (event.type) { case "touchstart": type = "mousedown"; break; case "touchmove": type = "mousemove"; break; case "touchend": type = "mouseup"; break; default: return; } //initMouseEvent(type, canBubble, cancelable, view, clickCount, // screenX, screenY, clientX, clientY, ctrlKey, // altKey, shiftKey, metaKey, button, relatedTarget); // this is eventually a Dom object, get the LGraphCanvas back if(typeof this.getCanvasWindow == "undefined"){ var window = this.lgraphcanvas.getCanvasWindow(); }else{ var window = this.getCanvasWindow(); } var document = window.document; var simulatedEvent = document.createEvent("MouseEvent"); simulatedEvent.initMouseEvent( type, true, true, window, 1, first.screenX, first.screenY, first.clientX, first.clientY, false, false, false, false, 0, //left null ); first.target.dispatchEvent(simulatedEvent); event.preventDefault(); };*/ /* CONTEXT MENU ********************/ LGraphCanvas.onGroupAdd = function(info, entry, mouse_event) { var canvas = LGraphCanvas.active_canvas; var ref_window = canvas.getCanvasWindow(); var group = new LiteGraph.LGraphGroup(); group.pos = canvas.convertEventToCanvasOffset(mouse_event); canvas.graph.add(group); }; LGraphCanvas.onMenuAdd = function (node, options, e, prev_menu, callback) { var canvas = LGraphCanvas.active_canvas; var ref_window = canvas.getCanvasWindow(); var graph = canvas.graph; if (!graph) return; function inner_onMenuAdded(base_category ,prev_menu){ var categories = LiteGraph.getNodeTypesCategories(canvas.filter || graph.filter).filter(function(category){return category.startsWith(base_category)}); var entries = []; categories.map(function(category){ if (!category) return; var base_category_regex = new RegExp('^(' + base_category + ')'); var category_name = category.replace(base_category_regex,"").split('/')[0]; var category_path = base_category === '' ? category_name + '/' : base_category + category_name + '/'; var name = category_name; if(name.indexOf("::") != -1) //in case it has a namespace like "shader::math/rand" it hides the namespace name = name.split("::")[1]; var index = entries.findIndex(function(entry){return entry.value === category_path}); if (index === -1) { entries.push({ value: category_path, content: name, has_submenu: true, callback : function(value, event, mouseEvent, contextMenu){ inner_onMenuAdded(value.value, contextMenu) }}); } }); var nodes = LiteGraph.getNodeTypesInCategory(base_category.slice(0, -1), canvas.filter || graph.filter ); nodes.map(function(node){ if (node.skip_list) return; var entry = { value: node.type, content: node.title, has_submenu: false , callback : function(value, event, mouseEvent, contextMenu){ var first_event = contextMenu.getFirstEvent(); canvas.graph.beforeChange(); var node = LiteGraph.createNode(value.value); if (node) { node.pos = canvas.convertEventToCanvasOffset(first_event); canvas.graph.add(node); } if(callback) callback(node); canvas.graph.afterChange(); } } entries.push(entry); }); new LiteGraph.ContextMenu( entries, { event: e, parentMenu: prev_menu }, ref_window ); } inner_onMenuAdded('',prev_menu); return false; }; LGraphCanvas.onMenuCollapseAll = function() {}; LGraphCanvas.onMenuNodeEdit = function() {}; LGraphCanvas.showMenuNodeOptionalInputs = function( v, options, e, prev_menu, node ) { if (!node) { return; } var that = this; var canvas = LGraphCanvas.active_canvas; var ref_window = canvas.getCanvasWindow(); var options = node.optional_inputs; if (node.onGetInputs) { options = node.onGetInputs(); } var entries = []; if (options) { for (var i=0; i < options.length; i++) { var entry = options[i]; if (!entry) { entries.push(null); continue; } var label = entry[0]; if(!entry[2]) entry[2] = {}; if (entry[2].label) { label = entry[2].label; } entry[2].removable = true; var data = { content: label, value: entry }; if (entry[1] == LiteGraph.ACTION) { data.className = "event"; } entries.push(data); } } if (node.onMenuNodeInputs) { var retEntries = node.onMenuNodeInputs(entries); if(retEntries) entries = retEntries; } if (!entries.length) { console.log("no input entries"); return; } var menu = new LiteGraph.ContextMenu( entries, { event: e, callback: inner_clicked, parentMenu: prev_menu, node: node }, ref_window ); function inner_clicked(v, e, prev) { if (!node) { return; } if (v.callback) { v.callback.call(that, node, v, e, prev); } if (v.value) { node.graph.beforeChange(); node.addInput(v.value[0], v.value[1], v.value[2]); if (node.onNodeInputAdd) { // callback to the node when adding a slot node.onNodeInputAdd(v.value); } node.setDirtyCanvas(true, true); node.graph.afterChange(); } } return false; }; LGraphCanvas.showMenuNodeOptionalOutputs = function( v, options, e, prev_menu, node ) { if (!node) { return; } var that = this; var canvas = LGraphCanvas.active_canvas; var ref_window = canvas.getCanvasWindow(); var options = node.optional_outputs; if (node.onGetOutputs) { options = node.onGetOutputs(); } var entries = []; if (options) { for (var i=0; i < options.length; i++) { var entry = options[i]; if (!entry) { //separator? entries.push(null); continue; } if ( node.flags && node.flags.skip_repeated_outputs && node.findOutputSlot(entry[0]) != -1 ) { continue; } //skip the ones already on var label = entry[0]; if(!entry[2]) entry[2] = {}; if (entry[2].label) { label = entry[2].label; } entry[2].removable = true; var data = { content: label, value: entry }; if (entry[1] == LiteGraph.EVENT) { data.className = "event"; } entries.push(data); } } if (this.onMenuNodeOutputs) { entries = this.onMenuNodeOutputs(entries); } if (LiteGraph.do_add_triggers_slots){ //canvas.allow_addOutSlot_onExecuted if (node.findOutputSlot("onExecuted") == -1){ entries.push({content: "On Executed", value: ["onExecuted", LiteGraph.EVENT, {nameLocked: true}], className: "event"}); //, opts: {} } } // add callback for modifing the menu elements onMenuNodeOutputs if (node.onMenuNodeOutputs) { var retEntries = node.onMenuNodeOutputs(entries); if(retEntries) entries = retEntries; } if (!entries.length) { return; } var menu = new LiteGraph.ContextMenu( entries, { event: e, callback: inner_clicked, parentMenu: prev_menu, node: node }, ref_window ); function inner_clicked(v, e, prev) { if (!node) { return; } if (v.callback) { v.callback.call(that, node, v, e, prev); } if (!v.value) { return; } var value = v.value[1]; if ( value && (value.constructor === Object || value.constructor === Array) ) { //submenu why? var entries = []; for (var i in value) { entries.push({ content: i, value: value[i] }); } new LiteGraph.ContextMenu(entries, { event: e, callback: inner_clicked, parentMenu: prev_menu, node: node }); return false; } else { node.graph.beforeChange(); node.addOutput(v.value[0], v.value[1], v.value[2]); if (node.onNodeOutputAdd) { // a callback to the node when adding a slot node.onNodeOutputAdd(v.value); } node.setDirtyCanvas(true, true); node.graph.afterChange(); } } return false; }; LGraphCanvas.onShowMenuNodeProperties = function( value, options, e, prev_menu, node ) { if (!node || !node.properties) { return; } var that = this; var canvas = LGraphCanvas.active_canvas; var ref_window = canvas.getCanvasWindow(); var entries = []; for (var i in node.properties) { var value = node.properties[i] !== undefined ? node.properties[i] : " "; if( typeof value == "object" ) value = JSON.stringify(value); var info = node.getPropertyInfo(i); if(info.type == "enum" || info.type == "combo") value = LGraphCanvas.getPropertyPrintableValue( value, info.values ); //value could contain invalid html characters, clean that value = LGraphCanvas.decodeHTML(value); entries.push({ content: "" + (info.label ? info.label : i) + "" + "" + value + "", value: i }); } if (!entries.length) { return; } var menu = new LiteGraph.ContextMenu( entries, { event: e, callback: inner_clicked, parentMenu: prev_menu, allow_html: true, node: node }, ref_window ); function inner_clicked(v, options, e, prev) { if (!node) { return; } var rect = this.getBoundingClientRect(); canvas.showEditPropertyValue(node, v.value, { position: [rect.left, rect.top] }); } return false; }; LGraphCanvas.decodeHTML = function(str) { var e = document.createElement("div"); e.innerText = str; return e.innerHTML; }; LGraphCanvas.onMenuResizeNode = function(value, options, e, menu, node) { if (!node) { return; } var fApplyMultiNode = function(node){ node.size = node.computeSize(); if (node.onResize) node.onResize(node.size); } var graphcanvas = LGraphCanvas.active_canvas; if (!graphcanvas.selected_nodes || Object.keys(graphcanvas.selected_nodes).length <= 1){ fApplyMultiNode(node); }else{ for (var i in graphcanvas.selected_nodes) { fApplyMultiNode(graphcanvas.selected_nodes[i]); } } node.setDirtyCanvas(true, true); }; LGraphCanvas.prototype.showLinkMenu = function(link, e) { var that = this; // console.log(link); var node_left = that.graph.getNodeById( link.origin_id ); var node_right = that.graph.getNodeById( link.target_id ); var fromType = false; if (node_left && node_left.outputs && node_left.outputs[link.origin_slot]) fromType = node_left.outputs[link.origin_slot].type; var destType = false; if (node_right && node_right.outputs && node_right.outputs[link.target_slot]) destType = node_right.inputs[link.target_slot].type; var options = ["Add Node",null,"Delete",null]; var menu = new LiteGraph.ContextMenu(options, { event: e, title: link.data != null ? link.data.constructor.name : null, callback: inner_clicked }); function inner_clicked(v,options,e) { switch (v) { case "Add Node": LGraphCanvas.onMenuAdd(null, null, e, menu, function(node){ // console.debug("node autoconnect"); if(!node.inputs || !node.inputs.length || !node.outputs || !node.outputs.length){ return; } // leave the connection type checking inside connectByType if (node_left.connectByType( link.origin_slot, node, fromType )){ node.connectByType( link.target_slot, node_right, destType ); node.pos[0] -= node.size[0] * 0.5; } }); break; case "Delete": that.graph.removeLink(link.id); break; default: /*var nodeCreated = createDefaultNodeForSlot({ nodeFrom: node_left ,slotFrom: link.origin_slot ,nodeTo: node ,slotTo: link.target_slot ,e: e ,nodeType: "AUTO" }); if(nodeCreated) console.log("new node in beetween "+v+" created");*/ } } return false; }; LGraphCanvas.prototype.createDefaultNodeForSlot = function(optPass) { // addNodeMenu for connection var optPass = optPass || {}; var opts = Object.assign({ nodeFrom: null // input ,slotFrom: null // input ,nodeTo: null // output ,slotTo: null // output ,position: [] // pass the event coords ,nodeType: null // choose a nodetype to add, AUTO to set at first good ,posAdd:[0,0] // adjust x,y ,posSizeFix:[0,0] // alpha, adjust the position x,y based on the new node size w,h } ,optPass ); var that = this; var isFrom = opts.nodeFrom && opts.slotFrom!==null; var isTo = !isFrom && opts.nodeTo && opts.slotTo!==null; if (!isFrom && !isTo){ console.warn("No data passed to createDefaultNodeForSlot "+opts.nodeFrom+" "+opts.slotFrom+" "+opts.nodeTo+" "+opts.slotTo); return false; } if (!opts.nodeType){ console.warn("No type to createDefaultNodeForSlot"); return false; } var nodeX = isFrom ? opts.nodeFrom : opts.nodeTo; var slotX = isFrom ? opts.slotFrom : opts.slotTo; var iSlotConn = false; switch (typeof slotX){ case "string": iSlotConn = isFrom ? nodeX.findOutputSlot(slotX,false) : nodeX.findInputSlot(slotX,false); slotX = isFrom ? nodeX.outputs[slotX] : nodeX.inputs[slotX]; break; case "object": // ok slotX iSlotConn = isFrom ? nodeX.findOutputSlot(slotX.name) : nodeX.findInputSlot(slotX.name); break; case "number": iSlotConn = slotX; slotX = isFrom ? nodeX.outputs[slotX] : nodeX.inputs[slotX]; break; case "undefined": default: // bad ? //iSlotConn = 0; console.warn("Cant get slot information "+slotX); return false; } if (slotX===false || iSlotConn===false){ console.warn("createDefaultNodeForSlot bad slotX "+slotX+" "+iSlotConn); } // check for defaults nodes for this slottype var fromSlotType = slotX.type==LiteGraph.EVENT?"_event_":slotX.type; var slotTypesDefault = isFrom ? LiteGraph.slot_types_default_out : LiteGraph.slot_types_default_in; if(slotTypesDefault && slotTypesDefault[fromSlotType]){ if (slotX.link !== null) { // is connected }else{ // is not not connected } nodeNewType = false; if(typeof slotTypesDefault[fromSlotType] == "object" || typeof slotTypesDefault[fromSlotType] == "array"){ for(var typeX in slotTypesDefault[fromSlotType]){ if (opts.nodeType == slotTypesDefault[fromSlotType][typeX] || opts.nodeType == "AUTO"){ nodeNewType = slotTypesDefault[fromSlotType][typeX]; // console.log("opts.nodeType == slotTypesDefault[fromSlotType][typeX] :: "+opts.nodeType); break; // -------- } } }else{ if (opts.nodeType == slotTypesDefault[fromSlotType] || opts.nodeType == "AUTO") nodeNewType = slotTypesDefault[fromSlotType]; } if (nodeNewType) { var nodeNewOpts = false; if (typeof nodeNewType == "object" && nodeNewType.node){ nodeNewOpts = nodeNewType; nodeNewType = nodeNewType.node; } //that.graph.beforeChange(); var newNode = LiteGraph.createNode(nodeNewType); if(newNode){ // if is object pass options if (nodeNewOpts){ if (nodeNewOpts.properties) { for (var i in nodeNewOpts.properties) { newNode.addProperty( i, nodeNewOpts.properties[i] ); } } if (nodeNewOpts.inputs) { newNode.inputs = []; for (var i in nodeNewOpts.inputs) { newNode.addOutput( nodeNewOpts.inputs[i][0], nodeNewOpts.inputs[i][1] ); } } if (nodeNewOpts.outputs) { newNode.outputs = []; for (var i in nodeNewOpts.outputs) { newNode.addOutput( nodeNewOpts.outputs[i][0], nodeNewOpts.outputs[i][1] ); } } if (nodeNewOpts.title) { newNode.title = nodeNewOpts.title; } if (nodeNewOpts.json) { newNode.configure(nodeNewOpts.json); } } // add the node that.graph.add(newNode); newNode.pos = [ opts.position[0]+opts.posAdd[0]+(opts.posSizeFix[0]?opts.posSizeFix[0]*newNode.size[0]:0) ,opts.position[1]+opts.posAdd[1]+(opts.posSizeFix[1]?opts.posSizeFix[1]*newNode.size[1]:0)]; //that.last_click_position; //[e.canvasX+30, e.canvasX+5];*/ //that.graph.afterChange(); // connect the two! if (isFrom){ opts.nodeFrom.connectByType( iSlotConn, newNode, fromSlotType ); }else{ opts.nodeTo.connectByTypeOutput( iSlotConn, newNode, fromSlotType ); } // if connecting in between if (isFrom && isTo){ // TODO } return true; }else{ console.log("failed creating "+nodeNewType); } } } return false; } LGraphCanvas.prototype.showConnectionMenu = function(optPass) { // addNodeMenu for connection var optPass = optPass || {}; var opts = Object.assign({ nodeFrom: null // input ,slotFrom: null // input ,nodeTo: null // output ,slotTo: null // output ,e: null } ,optPass ); var that = this; var isFrom = opts.nodeFrom && opts.slotFrom; var isTo = !isFrom && opts.nodeTo && opts.slotTo; if (!isFrom && !isTo){ console.warn("No data passed to showConnectionMenu"); return false; } var nodeX = isFrom ? opts.nodeFrom : opts.nodeTo; var slotX = isFrom ? opts.slotFrom : opts.slotTo; var iSlotConn = false; switch (typeof slotX){ case "string": iSlotConn = isFrom ? nodeX.findOutputSlot(slotX,false) : nodeX.findInputSlot(slotX,false); slotX = isFrom ? nodeX.outputs[slotX] : nodeX.inputs[slotX]; break; case "object": // ok slotX iSlotConn = isFrom ? nodeX.findOutputSlot(slotX.name) : nodeX.findInputSlot(slotX.name); break; case "number": iSlotConn = slotX; slotX = isFrom ? nodeX.outputs[slotX] : nodeX.inputs[slotX]; break; default: // bad ? //iSlotConn = 0; console.warn("Cant get slot information "+slotX); return false; } var options = ["Add Node",null]; if (that.allow_searchbox){ options.push("Search"); options.push(null); } // get defaults nodes for this slottype var fromSlotType = slotX.type==LiteGraph.EVENT?"_event_":slotX.type; var slotTypesDefault = isFrom ? LiteGraph.slot_types_default_out : LiteGraph.slot_types_default_in; if(slotTypesDefault && slotTypesDefault[fromSlotType]){ if(typeof slotTypesDefault[fromSlotType] == "object" || typeof slotTypesDefault[fromSlotType] == "array"){ for(var typeX in slotTypesDefault[fromSlotType]){ options.push(slotTypesDefault[fromSlotType][typeX]); } }else{ options.push(slotTypesDefault[fromSlotType]); } } // build menu var menu = new LiteGraph.ContextMenu(options, { event: opts.e, title: (slotX && slotX.name!="" ? (slotX.name + (fromSlotType?" | ":"")) : "")+(slotX && fromSlotType ? fromSlotType : ""), callback: inner_clicked }); // callback function inner_clicked(v,options,e) { //console.log("Process showConnectionMenu selection"); switch (v) { case "Add Node": LGraphCanvas.onMenuAdd(null, null, e, menu, function(node){ if (isFrom){ opts.nodeFrom.connectByType( iSlotConn, node, fromSlotType ); }else{ opts.nodeTo.connectByTypeOutput( iSlotConn, node, fromSlotType ); } }); break; case "Search": if(isFrom){ that.showSearchBox(e,{node_from: opts.nodeFrom, slot_from: slotX, type_filter_in: fromSlotType}); }else{ that.showSearchBox(e,{node_to: opts.nodeTo, slot_from: slotX, type_filter_out: fromSlotType}); } break; default: // check for defaults nodes for this slottype var nodeCreated = that.createDefaultNodeForSlot(Object.assign(opts,{ position: [opts.e.canvasX, opts.e.canvasY] ,nodeType: v })); if (nodeCreated){ // new node created //console.log("node "+v+" created") }else{ // failed or v is not in defaults } break; } } return false; }; // TODO refactor :: this is used fot title but not for properties! LGraphCanvas.onShowPropertyEditor = function(item, options, e, menu, node) { var input_html = ""; var property = item.property || "title"; var value = node[property]; // TODO refactor :: use createDialog ? var dialog = document.createElement("div"); dialog.is_modified = false; dialog.className = "graphdialog"; dialog.innerHTML = ""; dialog.close = function() { if (dialog.parentNode) { dialog.parentNode.removeChild(dialog); } }; var title = dialog.querySelector(".name"); title.innerText = property; var input = dialog.querySelector(".value"); if (input) { input.value = value; input.addEventListener("blur", function(e) { this.focus(); }); input.addEventListener("keydown", function(e) { dialog.is_modified = true; if (e.keyCode == 27) { //ESC dialog.close(); } else if (e.keyCode == 13) { inner(); // save } else if (e.keyCode != 13 && e.target.localName != "textarea") { return; } e.preventDefault(); e.stopPropagation(); }); } var graphcanvas = LGraphCanvas.active_canvas; var canvas = graphcanvas.canvas; var rect = canvas.getBoundingClientRect(); var offsetx = -20; var offsety = -20; if (rect) { offsetx -= rect.left; offsety -= rect.top; } if (event) { dialog.style.left = event.clientX + offsetx + "px"; dialog.style.top = event.clientY + offsety + "px"; } else { dialog.style.left = canvas.width * 0.5 + offsetx + "px"; dialog.style.top = canvas.height * 0.5 + offsety + "px"; } var button = dialog.querySelector("button"); button.addEventListener("click", inner); canvas.parentNode.appendChild(dialog); if(input) input.focus(); var dialogCloseTimer = null; dialog.addEventListener("mouseleave", function(e) { if(LiteGraph.dialog_close_on_mouse_leave) if (!dialog.is_modified && LiteGraph.dialog_close_on_mouse_leave) dialogCloseTimer = setTimeout(dialog.close, LiteGraph.dialog_close_on_mouse_leave_delay); //dialog.close(); }); dialog.addEventListener("mouseenter", function(e) { if(LiteGraph.dialog_close_on_mouse_leave) if(dialogCloseTimer) clearTimeout(dialogCloseTimer); }); function inner() { if(input) setValue(input.value); } function setValue(value) { if (item.type == "Number") { value = Number(value); } else if (item.type == "Boolean") { value = Boolean(value); } node[property] = value; if (dialog.parentNode) { dialog.parentNode.removeChild(dialog); } node.setDirtyCanvas(true, true); } }; // refactor: there are different dialogs, some uses createDialog some dont LGraphCanvas.prototype.prompt = function(title, value, callback, event, multiline) { var that = this; var input_html = ""; title = title || ""; var dialog = document.createElement("div"); dialog.is_modified = false; dialog.className = "graphdialog rounded"; if(multiline) dialog.innerHTML = " "; else dialog.innerHTML = " "; dialog.close = function() { that.prompt_box = null; if (dialog.parentNode) { dialog.parentNode.removeChild(dialog); } }; var graphcanvas = LGraphCanvas.active_canvas; var canvas = graphcanvas.canvas; canvas.parentNode.appendChild(dialog); if (this.ds.scale > 1) { dialog.style.transform = "scale(" + this.ds.scale + ")"; } var dialogCloseTimer = null; var prevent_timeout = false; LiteGraph.pointerListenerAdd(dialog,"leave", function(e) { if (prevent_timeout) return; if(LiteGraph.dialog_close_on_mouse_leave) if (!dialog.is_modified && LiteGraph.dialog_close_on_mouse_leave) dialogCloseTimer = setTimeout(dialog.close, LiteGraph.dialog_close_on_mouse_leave_delay); //dialog.close(); }); LiteGraph.pointerListenerAdd(dialog,"enter", function(e) { if(LiteGraph.dialog_close_on_mouse_leave) if(dialogCloseTimer) clearTimeout(dialogCloseTimer); }); var selInDia = dialog.querySelectorAll("select"); if (selInDia){ // if filtering, check focus changed to comboboxes and prevent closing selInDia.forEach(function(selIn) { selIn.addEventListener("click", function(e) { prevent_timeout++; }); selIn.addEventListener("blur", function(e) { prevent_timeout = 0; }); selIn.addEventListener("change", function(e) { prevent_timeout = -1; }); }); } if (that.prompt_box) { that.prompt_box.close(); } that.prompt_box = dialog; var first = null; var timeout = null; var selected = null; var name_element = dialog.querySelector(".name"); name_element.innerText = title; var value_element = dialog.querySelector(".value"); value_element.value = value; var input = value_element; input.addEventListener("keydown", function(e) { dialog.is_modified = true; if (e.keyCode == 27) { //ESC dialog.close(); } else if (e.keyCode == 13 && e.target.localName != "textarea") { if (callback) { callback(this.value); } dialog.close(); } else { return; } e.preventDefault(); e.stopPropagation(); }); var button = dialog.querySelector("button"); button.addEventListener("click", function(e) { if (callback) { callback(input.value); } that.setDirty(true); dialog.close(); }); var rect = canvas.getBoundingClientRect(); var offsetx = -20; var offsety = -20; if (rect) { offsetx -= rect.left; offsety -= rect.top; } if (event) { dialog.style.left = event.clientX + offsetx + "px"; dialog.style.top = event.clientY + offsety + "px"; } else { dialog.style.left = canvas.width * 0.5 + offsetx + "px"; dialog.style.top = canvas.height * 0.5 + offsety + "px"; } setTimeout(function() { input.focus(); }, 10); return dialog; }; LGraphCanvas.search_limit = -1; LGraphCanvas.prototype.showSearchBox = function(event, options) { // proposed defaults var def_options = { slot_from: null ,node_from: null ,node_to: null ,do_type_filter: LiteGraph.search_filter_enabled // TODO check for registered_slot_[in/out]_types not empty // this will be checked for functionality enabled : filter on slot type, in and out ,type_filter_in: false // these are default: pass to set initially set values ,type_filter_out: false ,show_general_if_none_on_typefilter: true ,show_general_after_typefiltered: true ,hide_on_mouse_leave: LiteGraph.search_hide_on_mouse_leave ,show_all_if_empty: true ,show_all_on_open: LiteGraph.search_show_all_on_open }; options = Object.assign(def_options, options || {}); //console.log(options); var that = this; var input_html = ""; var graphcanvas = LGraphCanvas.active_canvas; var canvas = graphcanvas.canvas; var root_document = canvas.ownerDocument || document; var dialog = document.createElement("div"); dialog.className = "litegraph litesearchbox graphdialog rounded"; dialog.innerHTML = "Search "; if (options.do_type_filter){ dialog.innerHTML += ""; dialog.innerHTML += ""; } dialog.innerHTML += "
"; if( root_document.fullscreenElement ) root_document.fullscreenElement.appendChild(dialog); else { root_document.body.appendChild(dialog); root_document.body.style.overflow = "hidden"; } // dialog element has been appended if (options.do_type_filter){ var selIn = dialog.querySelector(".slot_in_type_filter"); var selOut = dialog.querySelector(".slot_out_type_filter"); } dialog.close = function() { that.search_box = null; this.blur(); canvas.focus(); root_document.body.style.overflow = ""; setTimeout(function() { that.canvas.focus(); }, 20); //important, if canvas loses focus keys wont be captured if (dialog.parentNode) { dialog.parentNode.removeChild(dialog); } }; if (this.ds.scale > 1) { dialog.style.transform = "scale(" + this.ds.scale + ")"; } // hide on mouse leave if(options.hide_on_mouse_leave){ var prevent_timeout = false; var timeout_close = null; LiteGraph.pointerListenerAdd(dialog,"enter", function(e) { if (timeout_close) { clearTimeout(timeout_close); timeout_close = null; } }); LiteGraph.pointerListenerAdd(dialog,"leave", function(e) { if (prevent_timeout){ return; } timeout_close = setTimeout(function() { dialog.close(); }, 500); }); // if filtering, check focus changed to comboboxes and prevent closing if (options.do_type_filter){ selIn.addEventListener("click", function(e) { prevent_timeout++; }); selIn.addEventListener("blur", function(e) { prevent_timeout = 0; }); selIn.addEventListener("change", function(e) { prevent_timeout = -1; }); selOut.addEventListener("click", function(e) { prevent_timeout++; }); selOut.addEventListener("blur", function(e) { prevent_timeout = 0; }); selOut.addEventListener("change", function(e) { prevent_timeout = -1; }); } } if (that.search_box) { that.search_box.close(); } that.search_box = dialog; var helper = dialog.querySelector(".helper"); var first = null; var timeout = null; var selected = null; var input = dialog.querySelector("input"); if (input) { input.addEventListener("blur", function(e) { this.focus(); }); input.addEventListener("keydown", function(e) { if (e.keyCode == 38) { //UP changeSelection(false); } else if (e.keyCode == 40) { //DOWN changeSelection(true); } else if (e.keyCode == 27) { //ESC dialog.close(); } else if (e.keyCode == 13) { if (selected) { select(selected.innerHTML); } else if (first) { select(first); } else { dialog.close(); } } else { if (timeout) { clearInterval(timeout); } timeout = setTimeout(refreshHelper, 250); return; } e.preventDefault(); e.stopPropagation(); e.stopImmediatePropagation(); return true; }); } // if should filter on type, load and fill selected and choose elements if passed if (options.do_type_filter){ if (selIn){ var aSlots = LiteGraph.slot_types_in; var nSlots = aSlots.length; // this for object :: Object.keys(aSlots).length; if (options.type_filter_in == LiteGraph.EVENT || options.type_filter_in == LiteGraph.ACTION) options.type_filter_in = "_event_"; /* this will filter on * .. but better do it manually in case else if(options.type_filter_in === "" || options.type_filter_in === 0) options.type_filter_in = "*";*/ for (var iK=0; iK (rect.height - 200)) helper.style.maxHeight = (rect.height - event.layerY - 20) + "px"; /* var offsetx = -20; var offsety = -20; if (rect) { offsetx -= rect.left; offsety -= rect.top; } if (event) { dialog.style.left = event.clientX + offsetx + "px"; dialog.style.top = event.clientY + offsety + "px"; } else { dialog.style.left = canvas.width * 0.5 + offsetx + "px"; dialog.style.top = canvas.height * 0.5 + offsety + "px"; } canvas.parentNode.appendChild(dialog); */ input.focus(); if (options.show_all_on_open) refreshHelper(); function select(name) { if (name) { if (that.onSearchBoxSelection) { that.onSearchBoxSelection(name, event, graphcanvas); } else { var extra = LiteGraph.searchbox_extras[name.toLowerCase()]; if (extra) { name = extra.type; } graphcanvas.graph.beforeChange(); var node = LiteGraph.createNode(name); if (node) { node.pos = graphcanvas.convertEventToCanvasOffset( event ); graphcanvas.graph.add(node, false); } if (extra && extra.data) { if (extra.data.properties) { for (var i in extra.data.properties) { node.addProperty( i, extra.data.properties[i] ); } } if (extra.data.inputs) { node.inputs = []; for (var i in extra.data.inputs) { node.addOutput( extra.data.inputs[i][0], extra.data.inputs[i][1] ); } } if (extra.data.outputs) { node.outputs = []; for (var i in extra.data.outputs) { node.addOutput( extra.data.outputs[i][0], extra.data.outputs[i][1] ); } } if (extra.data.title) { node.title = extra.data.title; } if (extra.data.json) { node.configure(extra.data.json); } } // join node after inserting if (options.node_from){ var iS = false; switch (typeof options.slot_from){ case "string": iS = options.node_from.findOutputSlot(options.slot_from); break; case "object": if (options.slot_from.name){ iS = options.node_from.findOutputSlot(options.slot_from.name); }else{ iS = -1; } if (iS==-1 && typeof options.slot_from.slot_index !== "undefined") iS = options.slot_from.slot_index; break; case "number": iS = options.slot_from; break; default: iS = 0; // try with first if no name set } if (typeof options.node_from.outputs[iS] !== undefined){ if (iS!==false && iS>-1){ options.node_from.connectByType( iS, node, options.node_from.outputs[iS].type ); } }else{ // console.warn("cant find slot " + options.slot_from); } } if (options.node_to){ var iS = false; switch (typeof options.slot_from){ case "string": iS = options.node_to.findInputSlot(options.slot_from); break; case "object": if (options.slot_from.name){ iS = options.node_to.findInputSlot(options.slot_from.name); }else{ iS = -1; } if (iS==-1 && typeof options.slot_from.slot_index !== "undefined") iS = options.slot_from.slot_index; break; case "number": iS = options.slot_from; break; default: iS = 0; // try with first if no name set } if (typeof options.node_to.inputs[iS] !== undefined){ if (iS!==false && iS>-1){ // try connection options.node_to.connectByTypeOutput(iS,node,options.node_to.inputs[iS].type); } }else{ // console.warn("cant find slot_nodeTO " + options.slot_from); } } graphcanvas.graph.afterChange(); } } dialog.close(); } function changeSelection(forward) { var prev = selected; if (selected) { selected.classList.remove("selected"); } if (!selected) { selected = forward ? helper.childNodes[0] : helper.childNodes[helper.childNodes.length]; } else { selected = forward ? selected.nextSibling : selected.previousSibling; if (!selected) { selected = prev; } } if (!selected) { return; } selected.classList.add("selected"); selected.scrollIntoView({block: "end", behavior: "smooth"}); } function refreshHelper() { timeout = null; var str = input.value; first = null; helper.innerHTML = ""; if (!str && !options.show_all_if_empty) { return; } if (that.onSearchBox) { var list = that.onSearchBox(helper, str, graphcanvas); if (list) { for (var i = 0; i < list.length; ++i) { addResult(list[i]); } } } else { var c = 0; str = str.toLowerCase(); var filter = graphcanvas.filter || graphcanvas.graph.filter; // filter by type preprocess if(options.do_type_filter && that.search_box){ var sIn = that.search_box.querySelector(".slot_in_type_filter"); var sOut = that.search_box.querySelector(".slot_out_type_filter"); }else{ var sIn = false; var sOut = false; } //extras for (var i in LiteGraph.searchbox_extras) { var extra = LiteGraph.searchbox_extras[i]; if ((!options.show_all_if_empty || str) && extra.desc.toLowerCase().indexOf(str) === -1) { continue; } var ctor = LiteGraph.registered_node_types[ extra.type ]; if( ctor && ctor.filter != filter ) continue; if( ! inner_test_filter(extra.type) ) continue; addResult( extra.desc, "searchbox_extra" ); if ( LGraphCanvas.search_limit !== -1 && c++ > LGraphCanvas.search_limit ) { break; } } var filtered = null; if (Array.prototype.filter) { //filter supported var keys = Object.keys( LiteGraph.registered_node_types ); //types var filtered = keys.filter( inner_test_filter ); } else { filtered = []; for (var i in LiteGraph.registered_node_types) { if( inner_test_filter(i) ) filtered.push(i); } } for (var i = 0; i < filtered.length; i++) { addResult(filtered[i]); if ( LGraphCanvas.search_limit !== -1 && c++ > LGraphCanvas.search_limit ) { break; } } // add general type if filtering if (options.show_general_after_typefiltered && (sIn.value || sOut.value) ){ filtered_extra = []; for (var i in LiteGraph.registered_node_types) { if( inner_test_filter(i, {inTypeOverride: sIn&&sIn.value?"*":false, outTypeOverride: sOut&&sOut.value?"*":false}) ) filtered_extra.push(i); } for (var i = 0; i < filtered_extra.length; i++) { addResult(filtered_extra[i], "generic_type"); if ( LGraphCanvas.search_limit !== -1 && c++ > LGraphCanvas.search_limit ) { break; } } } // check il filtering gave no results if ((sIn.value || sOut.value) && ( (helper.childNodes.length == 0 && options.show_general_if_none_on_typefilter) ) ){ filtered_extra = []; for (var i in LiteGraph.registered_node_types) { if( inner_test_filter(i, {skipFilter: true}) ) filtered_extra.push(i); } for (var i = 0; i < filtered_extra.length; i++) { addResult(filtered_extra[i], "not_in_filter"); if ( LGraphCanvas.search_limit !== -1 && c++ > LGraphCanvas.search_limit ) { break; } } } function inner_test_filter( type, optsIn ) { var optsIn = optsIn || {}; var optsDef = { skipFilter: false ,inTypeOverride: false ,outTypeOverride: false }; var opts = Object.assign(optsDef,optsIn); var ctor = LiteGraph.registered_node_types[ type ]; if(filter && ctor.filter != filter ) return false; if ((!options.show_all_if_empty || str) && type.toLowerCase().indexOf(str) === -1) return false; // filter by slot IN, OUT types if(options.do_type_filter && !opts.skipFilter){ var sType = type; var sV = sIn.value; if (opts.inTypeOverride!==false) sV = opts.inTypeOverride; //if (sV.toLowerCase() == "_event_") sV = LiteGraph.EVENT; // -1 if(sIn && sV){ //console.log("will check filter against "+sV); if (LiteGraph.registered_slot_in_types[sV] && LiteGraph.registered_slot_in_types[sV].nodes){ // type is stored //console.debug("check "+sType+" in "+LiteGraph.registered_slot_in_types[sV].nodes); var doesInc = LiteGraph.registered_slot_in_types[sV].nodes.includes(sType); if (doesInc!==false){ //console.log(sType+" HAS "+sV); }else{ /*console.debug(LiteGraph.registered_slot_in_types[sV]); console.log(+" DONT includes "+type);*/ return false; } } } var sV = sOut.value; if (opts.outTypeOverride!==false) sV = opts.outTypeOverride; //if (sV.toLowerCase() == "_event_") sV = LiteGraph.EVENT; // -1 if(sOut && sV){ //console.log("search will check filter against "+sV); if (LiteGraph.registered_slot_out_types[sV] && LiteGraph.registered_slot_out_types[sV].nodes){ // type is stored //console.debug("check "+sType+" in "+LiteGraph.registered_slot_out_types[sV].nodes); var doesInc = LiteGraph.registered_slot_out_types[sV].nodes.includes(sType); if (doesInc!==false){ //console.log(sType+" HAS "+sV); }else{ /*console.debug(LiteGraph.registered_slot_out_types[sV]); console.log(+" DONT includes "+type);*/ return false; } } } } return true; } } function addResult(type, className) { var help = document.createElement("div"); if (!first) { first = type; } help.innerText = type; help.dataset["type"] = escape(type); help.className = "litegraph lite-search-item"; if (className) { help.className += " " + className; } help.addEventListener("click", function(e) { select(unescape(this.dataset["type"])); }); helper.appendChild(help); } } return dialog; }; LGraphCanvas.prototype.showEditPropertyValue = function( node, property, options ) { if (!node || node.properties[property] === undefined) { return; } options = options || {}; var that = this; var info = node.getPropertyInfo(property); var type = info.type; var input_html = ""; if (type == "string" || type == "number" || type == "array" || type == "object") { input_html = ""; } else if ( (type == "enum" || type == "combo") && info.values) { input_html = ""; } else if (type == "boolean" || type == "toggle") { input_html = ""; } else { console.warn("unknown type: " + type); return; } var dialog = this.createDialog( "" + (info.label ? info.label : property) + "" + input_html + "", options ); var input = false; if ((type == "enum" || type == "combo") && info.values) { input = dialog.querySelector("select"); input.addEventListener("change", function(e) { dialog.modified(); setValue(e.target.value); //var index = e.target.value; //setValue( e.options[e.selectedIndex].value ); }); } else if (type == "boolean" || type == "toggle") { input = dialog.querySelector("input"); if (input) { input.addEventListener("click", function(e) { dialog.modified(); setValue(!!input.checked); }); } } else { input = dialog.querySelector("input"); if (input) { input.addEventListener("blur", function(e) { this.focus(); }); var v = node.properties[property] !== undefined ? node.properties[property] : ""; if (type !== 'string') { v = JSON.stringify(v); } input.value = v; input.addEventListener("keydown", function(e) { if (e.keyCode == 27) { //ESC dialog.close(); } else if (e.keyCode == 13) { // ENTER inner(); // save } else if (e.keyCode != 13) { dialog.modified(); return; } e.preventDefault(); e.stopPropagation(); }); } } if (input) input.focus(); var button = dialog.querySelector("button"); button.addEventListener("click", inner); function inner() { setValue(input.value); } function setValue(value) { if(info && info.values && info.values.constructor === Object && info.values[value] != undefined ) value = info.values[value]; if (typeof node.properties[property] == "number") { value = Number(value); } if (type == "array" || type == "object") { value = JSON.parse(value); } node.properties[property] = value; if (node.graph) { node.graph._version++; } if (node.onPropertyChanged) { node.onPropertyChanged(property, value); } if(options.onclose) options.onclose(); dialog.close(); node.setDirtyCanvas(true, true); } return dialog; }; // TODO refactor, theer are different dialog, some uses createDialog, some dont LGraphCanvas.prototype.createDialog = function(html, options) { var def_options = { checkForInput: false, closeOnLeave: true, closeOnLeave_checkModified: true }; options = Object.assign(def_options, options || {}); var dialog = document.createElement("div"); dialog.className = "graphdialog"; dialog.innerHTML = html; dialog.is_modified = false; var rect = this.canvas.getBoundingClientRect(); var offsetx = -20; var offsety = -20; if (rect) { offsetx -= rect.left; offsety -= rect.top; } if (options.position) { offsetx += options.position[0]; offsety += options.position[1]; } else if (options.event) { offsetx += options.event.clientX; offsety += options.event.clientY; } //centered else { offsetx += this.canvas.width * 0.5; offsety += this.canvas.height * 0.5; } dialog.style.left = offsetx + "px"; dialog.style.top = offsety + "px"; this.canvas.parentNode.appendChild(dialog); // acheck for input and use default behaviour: save on enter, close on esc if (options.checkForInput){ var aI = []; var focused = false; if (aI = dialog.querySelectorAll("input")){ aI.forEach(function(iX) { iX.addEventListener("keydown",function(e){ dialog.modified(); if (e.keyCode == 27) { dialog.close(); } else if (e.keyCode != 13) { return; } // set value ? e.preventDefault(); e.stopPropagation(); }); if (!focused) iX.focus(); }); } } dialog.modified = function(){ dialog.is_modified = true; } dialog.close = function() { if (dialog.parentNode) { dialog.parentNode.removeChild(dialog); } }; var dialogCloseTimer = null; var prevent_timeout = false; dialog.addEventListener("mouseleave", function(e) { if (prevent_timeout) return; if(options.closeOnLeave || LiteGraph.dialog_close_on_mouse_leave) if (!dialog.is_modified && LiteGraph.dialog_close_on_mouse_leave) dialogCloseTimer = setTimeout(dialog.close, LiteGraph.dialog_close_on_mouse_leave_delay); //dialog.close(); }); dialog.addEventListener("mouseenter", function(e) { if(options.closeOnLeave || LiteGraph.dialog_close_on_mouse_leave) if(dialogCloseTimer) clearTimeout(dialogCloseTimer); }); var selInDia = dialog.querySelectorAll("select"); if (selInDia){ // if filtering, check focus changed to comboboxes and prevent closing selInDia.forEach(function(selIn) { selIn.addEventListener("click", function(e) { prevent_timeout++; }); selIn.addEventListener("blur", function(e) { prevent_timeout = 0; }); selIn.addEventListener("change", function(e) { prevent_timeout = -1; }); }); } return dialog; }; LGraphCanvas.prototype.createPanel = function(title, options) { options = options || {}; var ref_window = options.window || window; var root = document.createElement("div"); root.className = "litegraph dialog"; root.innerHTML = "
"; root.header = root.querySelector(".dialog-header"); if(options.width) root.style.width = options.width + (options.width.constructor === Number ? "px" : ""); if(options.height) root.style.height = options.height + (options.height.constructor === Number ? "px" : ""); if(options.closable) { var close = document.createElement("span"); close.innerHTML = "✕"; close.classList.add("close"); close.addEventListener("click",function(){ root.close(); }); root.header.appendChild(close); } root.title_element = root.querySelector(".dialog-title"); root.title_element.innerText = title; root.content = root.querySelector(".dialog-content"); root.alt_content = root.querySelector(".dialog-alt-content"); root.footer = root.querySelector(".dialog-footer"); root.close = function() { if (root.onClose && typeof root.onClose == "function"){ root.onClose(); } if(root.parentNode) root.parentNode.removeChild(root); /* XXX CHECK THIS */ if(this.parentNode){ this.parentNode.removeChild(this); } /* XXX this was not working, was fixed with an IF, check this */ } // function to swap panel content root.toggleAltContent = function(force){ if (typeof force != "undefined"){ var vTo = force ? "block" : "none"; var vAlt = force ? "none" : "block"; }else{ var vTo = root.alt_content.style.display != "block" ? "block" : "none"; var vAlt = root.alt_content.style.display != "block" ? "none" : "block"; } root.alt_content.style.display = vTo; root.content.style.display = vAlt; } root.toggleFooterVisibility = function(force){ if (typeof force != "undefined"){ var vTo = force ? "block" : "none"; }else{ var vTo = root.footer.style.display != "block" ? "block" : "none"; } root.footer.style.display = vTo; } root.clear = function() { this.content.innerHTML = ""; } root.addHTML = function(code, classname, on_footer) { var elem = document.createElement("div"); if(classname) elem.className = classname; elem.innerHTML = code; if(on_footer) root.footer.appendChild(elem); else root.content.appendChild(elem); return elem; } root.addButton = function( name, callback, options ) { var elem = document.createElement("button"); elem.innerText = name; elem.options = options; elem.classList.add("btn"); elem.addEventListener("click",callback); root.footer.appendChild(elem); return elem; } root.addSeparator = function() { var elem = document.createElement("div"); elem.className = "separator"; root.content.appendChild(elem); } root.addWidget = function( type, name, value, options, callback ) { options = options || {}; var str_value = String(value); type = type.toLowerCase(); if(type == "number") str_value = value.toFixed(3); var elem = document.createElement("div"); elem.className = "property"; elem.innerHTML = ""; elem.querySelector(".property_name").innerText = options.label || name; var value_element = elem.querySelector(".property_value"); value_element.innerText = str_value; elem.dataset["property"] = name; elem.dataset["type"] = options.type || type; elem.options = options; elem.value = value; if( type == "code" ) elem.addEventListener("click", function(e){ root.inner_showCodePad( this.dataset["property"] ); }); else if (type == "boolean") { elem.classList.add("boolean"); if(value) elem.classList.add("bool-on"); elem.addEventListener("click", function(){ //var v = node.properties[this.dataset["property"]]; //node.setProperty(this.dataset["property"],!v); this.innerText = v ? "true" : "false"; var propname = this.dataset["property"]; this.value = !this.value; this.classList.toggle("bool-on"); this.querySelector(".property_value").innerText = this.value ? "true" : "false"; innerChange(propname, this.value ); }); } else if (type == "string" || type == "number") { value_element.setAttribute("contenteditable",true); value_element.addEventListener("keydown", function(e){ if(e.code == "Enter" && (type != "string" || !e.shiftKey)) // allow for multiline { e.preventDefault(); this.blur(); } }); value_element.addEventListener("blur", function(){ var v = this.innerText; var propname = this.parentNode.dataset["property"]; var proptype = this.parentNode.dataset["type"]; if( proptype == "number") v = Number(v); innerChange(propname, v); }); } else if (type == "enum" || type == "combo") { var str_value = LGraphCanvas.getPropertyPrintableValue( value, options.values ); value_element.innerText = str_value; value_element.addEventListener("click", function(event){ var values = options.values || []; var propname = this.parentNode.dataset["property"]; var elem_that = this; var menu = new LiteGraph.ContextMenu(values,{ event: event, className: "dark", callback: inner_clicked }, ref_window); function inner_clicked(v, option, event) { //node.setProperty(propname,v); //graphcanvas.dirty_canvas = true; elem_that.innerText = v; innerChange(propname,v); return false; } }); } root.content.appendChild(elem); function innerChange(name, value) { //console.log("change",name,value); //that.dirty_canvas = true; if(options.callback) options.callback(name,value,options); if(callback) callback(name,value,options); } return elem; } if (root.onOpen && typeof root.onOpen == "function") root.onOpen(); return root; }; LGraphCanvas.getPropertyPrintableValue = function(value, values) { if(!values) return String(value); if(values.constructor === Array) { return String(value); } if(values.constructor === Object) { var desc_value = ""; for(var k in values) { if(values[k] != value) continue; desc_value = k; break; } return String(value) + " ("+desc_value+")"; } } LGraphCanvas.prototype.closePanels = function(){ var panel = document.querySelector("#node-panel"); if(panel) panel.close(); var panel = document.querySelector("#option-panel"); if(panel) panel.close(); } LGraphCanvas.prototype.showShowGraphOptionsPanel = function(refOpts, obEv, refMenu, refMenu2){ if(this.constructor && this.constructor.name == "HTMLDivElement"){ // assume coming from the menu event click if (!obEv || !obEv.event || !obEv.event.target || !obEv.event.target.lgraphcanvas){ console.warn("Canvas not found"); // need a ref to canvas obj /*console.debug(event); console.debug(event.target);*/ return; } var graphcanvas = obEv.event.target.lgraphcanvas; }else{ // assume called internally var graphcanvas = this; } graphcanvas.closePanels(); var ref_window = graphcanvas.getCanvasWindow(); panel = graphcanvas.createPanel("Options",{ closable: true ,window: ref_window ,onOpen: function(){ graphcanvas.OPTIONPANEL_IS_OPEN = true; } ,onClose: function(){ graphcanvas.OPTIONPANEL_IS_OPEN = false; graphcanvas.options_panel = null; } }); graphcanvas.options_panel = panel; panel.id = "option-panel"; panel.classList.add("settings"); function inner_refresh(){ panel.content.innerHTML = ""; //clear var fUpdate = function(name, value, options){ switch(name){ /*case "Render mode": // Case "".. if (options.values && options.key){ var kV = Object.values(options.values).indexOf(value); if (kV>=0 && options.values[kV]){ console.debug("update graph options: "+options.key+": "+kV); graphcanvas[options.key] = kV; //console.debug(graphcanvas); break; } } console.warn("unexpected options"); console.debug(options); break;*/ default: //console.debug("want to update graph options: "+name+": "+value); if (options && options.key){ name = options.key; } if (options.values){ value = Object.values(options.values).indexOf(value); } //console.debug("update graph option: "+name+": "+value); graphcanvas[name] = value; break; } }; // panel.addWidget( "string", "Graph name", "", {}, fUpdate); // implement var aProps = LiteGraph.availableCanvasOptions; aProps.sort(); for(var pI in aProps){ var pX = aProps[pI]; panel.addWidget( "boolean", pX, graphcanvas[pX], {key: pX, on: "True", off: "False"}, fUpdate); } var aLinks = [ graphcanvas.links_render_mode ]; panel.addWidget( "combo", "Render mode", LiteGraph.LINK_RENDER_MODES[graphcanvas.links_render_mode], {key: "links_render_mode", values: LiteGraph.LINK_RENDER_MODES}, fUpdate); panel.addSeparator(); panel.footer.innerHTML = ""; // clear } inner_refresh(); graphcanvas.canvas.parentNode.appendChild( panel ); } LGraphCanvas.prototype.showShowNodePanel = function( node ) { this.SELECTED_NODE = node; this.closePanels(); var ref_window = this.getCanvasWindow(); var that = this; var graphcanvas = this; var panel = this.createPanel(node.title || "",{ closable: true ,window: ref_window ,onOpen: function(){ graphcanvas.NODEPANEL_IS_OPEN = true; } ,onClose: function(){ graphcanvas.NODEPANEL_IS_OPEN = false; graphcanvas.node_panel = null; } }); graphcanvas.node_panel = panel; panel.id = "node-panel"; panel.node = node; panel.classList.add("settings"); function inner_refresh() { panel.content.innerHTML = ""; //clear panel.addHTML(""+node.type+""+(node.constructor.desc || "")+""); panel.addHTML("

Properties

"); var fUpdate = function(name,value){ graphcanvas.graph.beforeChange(node); switch(name){ case "Title": node.title = value; break; case "Mode": var kV = Object.values(LiteGraph.NODE_MODES).indexOf(value); if (kV>=0 && LiteGraph.NODE_MODES[kV]){ node.changeMode(kV); }else{ console.warn("unexpected mode: "+value); } break; case "Color": if (LGraphCanvas.node_colors[value]){ node.color = LGraphCanvas.node_colors[value].color; node.bgcolor = LGraphCanvas.node_colors[value].bgcolor; }else{ console.warn("unexpected color: "+value); } break; default: node.setProperty(name,value); break; } graphcanvas.graph.afterChange(); graphcanvas.dirty_canvas = true; }; panel.addWidget( "string", "Title", node.title, {}, fUpdate); panel.addWidget( "combo", "Mode", LiteGraph.NODE_MODES[node.mode], {values: LiteGraph.NODE_MODES}, fUpdate); var nodeCol = ""; if (node.color !== undefined){ nodeCol = Object.keys(LGraphCanvas.node_colors).filter(function(nK){ return LGraphCanvas.node_colors[nK].color == node.color; }); } panel.addWidget( "combo", "Color", nodeCol, {values: Object.keys(LGraphCanvas.node_colors)}, fUpdate); for(var pName in node.properties) { var value = node.properties[pName]; var info = node.getPropertyInfo(pName); var type = info.type || "string"; //in case the user wants control over the side panel widget if( node.onAddPropertyToPanel && node.onAddPropertyToPanel(pName,panel) ) continue; panel.addWidget( info.widget || info.type, pName, value, info, fUpdate); } panel.addSeparator(); if(node.onShowCustomPanelInfo) node.onShowCustomPanelInfo(panel); panel.footer.innerHTML = ""; // clear panel.addButton("Delete",function(){ if(node.block_delete) return; node.graph.remove(node); panel.close(); }).classList.add("delete"); } panel.inner_showCodePad = function( propname ) { panel.classList.remove("settings"); panel.classList.add("centered"); /*if(window.CodeFlask) //disabled for now { panel.content.innerHTML = "
"; var flask = new CodeFlask( "div.code", { language: 'js' }); flask.updateCode(node.properties[propname]); flask.onUpdate( function(code) { node.setProperty(propname, code); }); } else {*/ panel.alt_content.innerHTML = ""; var textarea = panel.alt_content.querySelector("textarea"); var fDoneWith = function(){ panel.toggleAltContent(false); //if(node_prop_div) node_prop_div.style.display = "block"; // panel.close(); panel.toggleFooterVisibility(true); textarea.parentNode.removeChild(textarea); panel.classList.add("settings"); panel.classList.remove("centered"); inner_refresh(); } textarea.value = node.properties[propname]; textarea.addEventListener("keydown", function(e){ if(e.code == "Enter" && e.ctrlKey ) { node.setProperty(propname, textarea.value); fDoneWith(); } }); panel.toggleAltContent(true); panel.toggleFooterVisibility(false); textarea.style.height = "calc(100% - 40px)"; /*}*/ var assign = panel.addButton( "Assign", function(){ node.setProperty(propname, textarea.value); fDoneWith(); }); panel.alt_content.appendChild(assign); //panel.content.appendChild(assign); var button = panel.addButton( "Close", fDoneWith); button.style.float = "right"; panel.alt_content.appendChild(button); // panel.content.appendChild(button); } inner_refresh(); this.canvas.parentNode.appendChild( panel ); } LGraphCanvas.prototype.showSubgraphPropertiesDialog = function(node) { console.log("showing subgraph properties dialog"); var old_panel = this.canvas.parentNode.querySelector(".subgraph_dialog"); if(old_panel) old_panel.close(); var panel = this.createPanel("Subgraph Inputs",{closable:true, width: 500}); panel.node = node; panel.classList.add("subgraph_dialog"); function inner_refresh() { panel.clear(); //show currents if(node.inputs) for(var i = 0; i < node.inputs.length; ++i) { var input = node.inputs[i]; if(input.not_subgraph_input) continue; var html = " "; var elem = panel.addHTML(html,"subgraph_property"); elem.dataset["name"] = input.name; elem.dataset["slot"] = i; elem.querySelector(".name").innerText = input.name; elem.querySelector(".type").innerText = input.type; elem.querySelector("button").addEventListener("click",function(e){ node.removeInput( Number( this.parentNode.dataset["slot"] ) ); inner_refresh(); }); } } //add extra var html = " + NameType"; var elem = panel.addHTML(html,"subgraph_property extra", true); elem.querySelector("button").addEventListener("click", function(e){ var elem = this.parentNode; var name = elem.querySelector(".name").value; var type = elem.querySelector(".type").value; if(!name || node.findInputSlot(name) != -1) return; node.addInput(name,type); elem.querySelector(".name").value = ""; elem.querySelector(".type").value = ""; inner_refresh(); }); inner_refresh(); this.canvas.parentNode.appendChild(panel); return panel; } LGraphCanvas.prototype.showSubgraphPropertiesDialogRight = function (node) { // console.log("showing subgraph properties dialog"); var that = this; // old_panel if old_panel is exist close it var old_panel = this.canvas.parentNode.querySelector(".subgraph_dialog"); if (old_panel) old_panel.close(); // new panel var panel = this.createPanel("Subgraph Outputs", { closable: true, width: 500 }); panel.node = node; panel.classList.add("subgraph_dialog"); function inner_refresh() { panel.clear(); //show currents if (node.outputs) for (var i = 0; i < node.outputs.length; ++i) { var input = node.outputs[i]; if (input.not_subgraph_output) continue; var html = " "; var elem = panel.addHTML(html, "subgraph_property"); elem.dataset["name"] = input.name; elem.dataset["slot"] = i; elem.querySelector(".name").innerText = input.name; elem.querySelector(".type").innerText = input.type; elem.querySelector("button").addEventListener("click", function (e) { node.removeOutput(Number(this.parentNode.dataset["slot"])); inner_refresh(); }); } } //add extra var html = " + NameType"; var elem = panel.addHTML(html, "subgraph_property extra", true); elem.querySelector(".name").addEventListener("keydown", function (e) { if (e.keyCode == 13) { addOutput.apply(this) } }) elem.querySelector("button").addEventListener("click", function (e) { addOutput.apply(this) }); function addOutput() { var elem = this.parentNode; var name = elem.querySelector(".name").value; var type = elem.querySelector(".type").value; if (!name || node.findOutputSlot(name) != -1) return; node.addOutput(name, type); elem.querySelector(".name").value = ""; elem.querySelector(".type").value = ""; inner_refresh(); } inner_refresh(); this.canvas.parentNode.appendChild(panel); return panel; } LGraphCanvas.prototype.checkPanels = function() { if(!this.canvas) return; var panels = this.canvas.parentNode.querySelectorAll(".litegraph.dialog"); for(var i = 0; i < panels.length; ++i) { var panel = panels[i]; if( !panel.node ) continue; if( !panel.node.graph || panel.graph != this.graph ) panel.close(); } } LGraphCanvas.onMenuNodeCollapse = function(value, options, e, menu, node) { node.graph.beforeChange(/*?*/); var fApplyMultiNode = function(node){ node.collapse(); } var graphcanvas = LGraphCanvas.active_canvas; if (!graphcanvas.selected_nodes || Object.keys(graphcanvas.selected_nodes).length <= 1){ fApplyMultiNode(node); }else{ for (var i in graphcanvas.selected_nodes) { fApplyMultiNode(graphcanvas.selected_nodes[i]); } } node.graph.afterChange(/*?*/); }; LGraphCanvas.onMenuNodePin = function(value, options, e, menu, node) { node.pin(); }; LGraphCanvas.onMenuNodeMode = function(value, options, e, menu, node) { new LiteGraph.ContextMenu( LiteGraph.NODE_MODES, { event: e, callback: inner_clicked, parentMenu: menu, node: node } ); function inner_clicked(v) { if (!node) { return; } var kV = Object.values(LiteGraph.NODE_MODES).indexOf(v); var fApplyMultiNode = function(node){ if (kV>=0 && LiteGraph.NODE_MODES[kV]) node.changeMode(kV); else{ console.warn("unexpected mode: "+v); node.changeMode(LiteGraph.ALWAYS); } } var graphcanvas = LGraphCanvas.active_canvas; if (!graphcanvas.selected_nodes || Object.keys(graphcanvas.selected_nodes).length <= 1){ fApplyMultiNode(node); }else{ for (var i in graphcanvas.selected_nodes) { fApplyMultiNode(graphcanvas.selected_nodes[i]); } } } return false; }; LGraphCanvas.onMenuNodeColors = function(value, options, e, menu, node) { if (!node) { throw "no node for color"; } var values = []; values.push({ value: null, content: "No color" }); for (var i in LGraphCanvas.node_colors) { var color = LGraphCanvas.node_colors[i]; var value = { value: i, content: "" + i + "" }; values.push(value); } new LiteGraph.ContextMenu(values, { event: e, callback: inner_clicked, parentMenu: menu, node: node }); function inner_clicked(v) { if (!node) { return; } var color = v.value ? LGraphCanvas.node_colors[v.value] : null; var fApplyColor = function(node){ if (color) { if (node.constructor === LiteGraph.LGraphGroup) { node.color = color.groupcolor; } else { node.color = color.color; node.bgcolor = color.bgcolor; } } else { delete node.color; delete node.bgcolor; } } var graphcanvas = LGraphCanvas.active_canvas; if (!graphcanvas.selected_nodes || Object.keys(graphcanvas.selected_nodes).length <= 1){ fApplyColor(node); }else{ for (var i in graphcanvas.selected_nodes) { fApplyColor(graphcanvas.selected_nodes[i]); } } node.setDirtyCanvas(true, true); } return false; }; LGraphCanvas.onMenuNodeShapes = function(value, options, e, menu, node) { if (!node) { throw "no node passed"; } new LiteGraph.ContextMenu(LiteGraph.VALID_SHAPES, { event: e, callback: inner_clicked, parentMenu: menu, node: node }); function inner_clicked(v) { if (!node) { return; } node.graph.beforeChange(/*?*/); //node var fApplyMultiNode = function(node){ node.shape = v; } var graphcanvas = LGraphCanvas.active_canvas; if (!graphcanvas.selected_nodes || Object.keys(graphcanvas.selected_nodes).length <= 1){ fApplyMultiNode(node); }else{ for (var i in graphcanvas.selected_nodes) { fApplyMultiNode(graphcanvas.selected_nodes[i]); } } node.graph.afterChange(/*?*/); //node node.setDirtyCanvas(true); } return false; }; LGraphCanvas.onMenuNodeRemove = function(value, options, e, menu, node) { if (!node) { throw "no node passed"; } var graph = node.graph; graph.beforeChange(); var fApplyMultiNode = function(node){ if (node.removable === false) { return; } graph.remove(node); } var graphcanvas = LGraphCanvas.active_canvas; if (!graphcanvas.selected_nodes || Object.keys(graphcanvas.selected_nodes).length <= 1){ fApplyMultiNode(node); }else{ for (var i in graphcanvas.selected_nodes) { fApplyMultiNode(graphcanvas.selected_nodes[i]); } } graph.afterChange(); node.setDirtyCanvas(true, true); }; LGraphCanvas.onMenuNodeToSubgraph = function(value, options, e, menu, node) { var graph = node.graph; var graphcanvas = LGraphCanvas.active_canvas; if(!graphcanvas) //?? return; var nodes_list = Object.values( graphcanvas.selected_nodes || {} ); if( !nodes_list.length ) nodes_list = [ node ]; var subgraph_node = LiteGraph.createNode("graph/subgraph"); subgraph_node.pos = node.pos.concat(); graph.add(subgraph_node); subgraph_node.buildFromNodes( nodes_list ); graphcanvas.deselectAllNodes(); node.setDirtyCanvas(true, true); }; LGraphCanvas.onMenuNodeClone = function(value, options, e, menu, node) { node.graph.beforeChange(); var newSelected = {}; var fApplyMultiNode = function(node){ if (node.clonable == false) { return; } var newnode = node.clone(); if (!newnode) { return; } newnode.pos = [node.pos[0] + 5, node.pos[1] + 5]; node.graph.add(newnode); newSelected[newnode.id] = newnode; } var graphcanvas = LGraphCanvas.active_canvas; if (!graphcanvas.selected_nodes || Object.keys(graphcanvas.selected_nodes).length <= 1){ fApplyMultiNode(node); }else{ for (var i in graphcanvas.selected_nodes) { fApplyMultiNode(graphcanvas.selected_nodes[i]); } } if(Object.keys(newSelected).length){ graphcanvas.selectNodes(newSelected); } node.graph.afterChange(); node.setDirtyCanvas(true, true); }; LGraphCanvas.node_colors = { red: { color: "#322", bgcolor: "#533", groupcolor: "#A88" }, brown: { color: "#332922", bgcolor: "#593930", groupcolor: "#b06634" }, green: { color: "#232", bgcolor: "#353", groupcolor: "#8A8" }, blue: { color: "#223", bgcolor: "#335", groupcolor: "#88A" }, pale_blue: { color: "#2a363b", bgcolor: "#3f5159", groupcolor: "#3f789e" }, cyan: { color: "#233", bgcolor: "#355", groupcolor: "#8AA" }, purple: { color: "#323", bgcolor: "#535", groupcolor: "#a1309b" }, yellow: { color: "#432", bgcolor: "#653", groupcolor: "#b58b2a" }, black: { color: "#222", bgcolor: "#000", groupcolor: "#444" } }; LGraphCanvas.prototype.getCanvasMenuOptions = function() { var options = null; var that = this; if (this.getMenuOptions) { options = this.getMenuOptions(); } else { options = [ { content: "Add Node", has_submenu: true, callback: LGraphCanvas.onMenuAdd }, { content: "Add Group", callback: LGraphCanvas.onGroupAdd }, //{ content: "Arrange", callback: that.graph.arrange }, //{content:"Collapse All", callback: LGraphCanvas.onMenuCollapseAll } ]; /*if (LiteGraph.showCanvasOptions){ options.push({ content: "Options", callback: that.showShowGraphOptionsPanel }); }*/ if (this._graph_stack && this._graph_stack.length > 0) { options.push(null, { content: "Close subgraph", callback: this.closeSubgraph.bind(this) }); } } if (this.getExtraMenuOptions) { var extra = this.getExtraMenuOptions(this, options); if (extra) { options = options.concat(extra); } } return options; }; //called by processContextMenu to extract the menu list LGraphCanvas.prototype.getNodeMenuOptions = function(node) { var options = null; if (node.getMenuOptions) { options = node.getMenuOptions(this); } else { options = [ { content: "Inputs", has_submenu: true, disabled: true, callback: LGraphCanvas.showMenuNodeOptionalInputs }, { content: "Outputs", has_submenu: true, disabled: true, callback: LGraphCanvas.showMenuNodeOptionalOutputs }, null, { content: "Properties", has_submenu: true, callback: LGraphCanvas.onShowMenuNodeProperties }, null, { content: "Title", callback: LGraphCanvas.onShowPropertyEditor }, { content: "Mode", has_submenu: true, callback: LGraphCanvas.onMenuNodeMode }]; if(node.resizable !== false){ options.push({ content: "Resize", callback: LGraphCanvas.onMenuResizeNode }); } options.push( { content: "Collapse", callback: LGraphCanvas.onMenuNodeCollapse }, { content: "Pin", callback: LGraphCanvas.onMenuNodePin }, { content: "Colors", has_submenu: true, callback: LGraphCanvas.onMenuNodeColors }, { content: "Shapes", has_submenu: true, callback: LGraphCanvas.onMenuNodeShapes }, null ); } if (node.onGetInputs) { var inputs = node.onGetInputs(); if (inputs && inputs.length) { options[0].disabled = false; } } if (node.onGetOutputs) { var outputs = node.onGetOutputs(); if (outputs && outputs.length) { options[1].disabled = false; } } if (node.getExtraMenuOptions) { var extra = node.getExtraMenuOptions(this, options); if (extra) { extra.push(null); options = extra.concat(options); } } if (node.clonable !== false) { options.push({ content: "Clone", callback: LGraphCanvas.onMenuNodeClone }); } if(0) //TODO options.push({ content: "To Subgraph", callback: LGraphCanvas.onMenuNodeToSubgraph }); options.push(null, { content: "Remove", disabled: !(node.removable !== false && !node.block_delete ), callback: LGraphCanvas.onMenuNodeRemove }); if (node.graph && node.graph.onGetNodeMenuOptions) { node.graph.onGetNodeMenuOptions(options, node); } return options; }; LGraphCanvas.prototype.getGroupMenuOptions = function(node) { var o = [ { content: "Title", callback: LGraphCanvas.onShowPropertyEditor }, { content: "Color", has_submenu: true, callback: LGraphCanvas.onMenuNodeColors }, { content: "Font size", property: "font_size", type: "Number", callback: LGraphCanvas.onShowPropertyEditor }, null, { content: "Remove", callback: LGraphCanvas.onMenuNodeRemove } ]; return o; }; LGraphCanvas.prototype.processContextMenu = function(node, event) { var that = this; var canvas = LGraphCanvas.active_canvas; var ref_window = canvas.getCanvasWindow(); var menu_info = null; var options = { event: event, callback: inner_option_clicked, extra: node }; if(node) options.title = node.type; //check if mouse is in input var slot = null; if (node) { slot = node.getSlotInPosition(event.canvasX, event.canvasY); LGraphCanvas.active_node = node; } if (slot) { //on slot menu_info = []; if (node.getSlotMenuOptions) { menu_info = node.getSlotMenuOptions(slot); } else { if ( slot && slot.output && slot.output.links && slot.output.links.length ) { menu_info.push({ content: "Disconnect Links", slot: slot }); } var _slot = slot.input || slot.output; if (_slot.removable){ menu_info.push( _slot.locked ? "Cannot remove" : { content: "Remove Slot", slot: slot } ); } if (!_slot.nameLocked){ menu_info.push({ content: "Rename Slot", slot: slot }); } } options.title = (slot.input ? slot.input.type : slot.output.type) || "*"; if (slot.input && slot.input.type == LiteGraph.ACTION) { options.title = "Action"; } if (slot.output && slot.output.type == LiteGraph.EVENT) { options.title = "Event"; } } else { if (node) { //on node menu_info = this.getNodeMenuOptions(node); } else { menu_info = this.getCanvasMenuOptions(); var group = this.graph.getGroupOnPos( event.canvasX, event.canvasY ); if (group) { //on group menu_info.push(null, { content: "Edit Group", has_submenu: true, submenu: { title: "Group", extra: group, options: this.getGroupMenuOptions(group) } }); } } } //show menu if (!menu_info) { return; } var menu = new LiteGraph.ContextMenu(menu_info, options, ref_window); function inner_option_clicked(v, options, e) { if (!v) { return; } if (v.content == "Remove Slot") { var info = v.slot; node.graph.beforeChange(); if (info.input) { node.removeInput(info.slot); } else if (info.output) { node.removeOutput(info.slot); } node.graph.afterChange(); return; } else if (v.content == "Disconnect Links") { var info = v.slot; node.graph.beforeChange(); if (info.output) { node.disconnectOutput(info.slot); } else if (info.input) { node.disconnectInput(info.slot); } node.graph.afterChange(); return; } else if (v.content == "Rename Slot") { var info = v.slot; var slot_info = info.input ? node.getInputInfo(info.slot) : node.getOutputInfo(info.slot); var dialog = that.createDialog( "Name", options ); var input = dialog.querySelector("input"); if (input && slot_info) { input.value = slot_info.label || ""; } var inner = function(){ node.graph.beforeChange(); if (input.value) { if (slot_info) { slot_info.label = input.value; } that.setDirty(true); } dialog.close(); node.graph.afterChange(); } dialog.querySelector("button").addEventListener("click", inner); input.addEventListener("keydown", function(e) { dialog.is_modified = true; if (e.keyCode == 27) { //ESC dialog.close(); } else if (e.keyCode == 13) { inner(); // save } else if (e.keyCode != 13 && e.target.localName != "textarea") { return; } e.preventDefault(); e.stopPropagation(); }); input.focus(); } //if(v.callback) // return v.callback.call(that, node, options, e, menu, that, event ); } }; //API ************************************************* //like rect but rounded corners if (typeof(window) != "undefined" && window.CanvasRenderingContext2D && !window.CanvasRenderingContext2D.prototype.roundRect) { window.CanvasRenderingContext2D.prototype.roundRect = function( x, y, w, h, radius, radius_low ) { var top_left_radius = 0; var top_right_radius = 0; var bottom_left_radius = 0; var bottom_right_radius = 0; if ( radius === 0 ) { this.rect(x,y,w,h); return; } if(radius_low === undefined) radius_low = radius; //make it compatible with official one if(radius != null && radius.constructor === Array) { if(radius.length == 1) top_left_radius = top_right_radius = bottom_left_radius = bottom_right_radius = radius[0]; else if(radius.length == 2) { top_left_radius = bottom_right_radius = radius[0]; top_right_radius = bottom_left_radius = radius[1]; } else if(radius.length == 4) { top_left_radius = radius[0]; top_right_radius = radius[1]; bottom_left_radius = radius[2]; bottom_right_radius = radius[3]; } else return; } else //old using numbers { top_left_radius = radius || 0; top_right_radius = radius || 0; bottom_left_radius = radius_low || 0; bottom_right_radius = radius_low || 0; } //top right this.moveTo(x + top_left_radius, y); this.lineTo(x + w - top_right_radius, y); this.quadraticCurveTo(x + w, y, x + w, y + top_right_radius); //bottom right this.lineTo(x + w, y + h - bottom_right_radius); this.quadraticCurveTo( x + w, y + h, x + w - bottom_right_radius, y + h ); //bottom left this.lineTo(x + bottom_right_radius, y + h); this.quadraticCurveTo(x, y + h, x, y + h - bottom_left_radius); //top left this.lineTo(x, y + bottom_left_radius); this.quadraticCurveTo(x, y, x + top_left_radius, y); }; }//if function compareObjects(a, b) { for (var i in a) { if (a[i] != b[i]) { return false; } } return true; } LiteGraph.compareObjects = compareObjects; function distance(a, b) { return Math.sqrt( (b[0] - a[0]) * (b[0] - a[0]) + (b[1] - a[1]) * (b[1] - a[1]) ); } LiteGraph.distance = distance; function colorToString(c) { return ( "rgba(" + Math.round(c[0] * 255).toFixed() + "," + Math.round(c[1] * 255).toFixed() + "," + Math.round(c[2] * 255).toFixed() + "," + (c.length == 4 ? c[3].toFixed(2) : "1.0") + ")" ); } LiteGraph.colorToString = colorToString; function isInsideRectangle(x, y, left, top, width, height) { if (left < x && left + width > x && top < y && top + height > y) { return true; } return false; } LiteGraph.isInsideRectangle = isInsideRectangle; //[minx,miny,maxx,maxy] function growBounding(bounding, x, y) { if (x < bounding[0]) { bounding[0] = x; } else if (x > bounding[2]) { bounding[2] = x; } if (y < bounding[1]) { bounding[1] = y; } else if (y > bounding[3]) { bounding[3] = y; } } LiteGraph.growBounding = growBounding; //point inside bounding box function isInsideBounding(p, bb) { if ( p[0] < bb[0][0] || p[1] < bb[0][1] || p[0] > bb[1][0] || p[1] > bb[1][1] ) { return false; } return true; } LiteGraph.isInsideBounding = isInsideBounding; //bounding overlap, format: [ startx, starty, width, height ] function overlapBounding(a, b) { var A_end_x = a[0] + a[2]; var A_end_y = a[1] + a[3]; var B_end_x = b[0] + b[2]; var B_end_y = b[1] + b[3]; if ( a[0] > B_end_x || a[1] > B_end_y || A_end_x < b[0] || A_end_y < b[1] ) { return false; } return true; } LiteGraph.overlapBounding = overlapBounding; //Convert a hex value to its decimal value - the inputted hex must be in the // format of a hex triplet - the kind we use for HTML colours. The function // will return an array with three values. function hex2num(hex) { if (hex.charAt(0) == "#") { hex = hex.slice(1); } //Remove the '#' char - if there is one. hex = hex.toUpperCase(); var hex_alphabets = "0123456789ABCDEF"; var value = new Array(3); var k = 0; var int1, int2; for (var i = 0; i < 6; i += 2) { int1 = hex_alphabets.indexOf(hex.charAt(i)); int2 = hex_alphabets.indexOf(hex.charAt(i + 1)); value[k] = int1 * 16 + int2; k++; } return value; } LiteGraph.hex2num = hex2num; //Give a array with three values as the argument and the function will return // the corresponding hex triplet. function num2hex(triplet) { var hex_alphabets = "0123456789ABCDEF"; var hex = "#"; var int1, int2; for (var i = 0; i < 3; i++) { int1 = triplet[i] / 16; int2 = triplet[i] % 16; hex += hex_alphabets.charAt(int1) + hex_alphabets.charAt(int2); } return hex; } LiteGraph.num2hex = num2hex; /* LiteGraph GUI elements used for canvas editing *************************************/ /** * ContextMenu from LiteGUI * * @class ContextMenu * @constructor * @param {Array} values (allows object { title: "Nice text", callback: function ... }) * @param {Object} options [optional] Some options:\ * - title: title to show on top of the menu * - callback: function to call when an option is clicked, it receives the item information * - ignore_item_callbacks: ignores the callback inside the item, it just calls the options.callback * - event: you can pass a MouseEvent, this way the ContextMenu appears in that position */ function ContextMenu(values, options) { options = options || {}; this.options = options; var that = this; //to link a menu with its parent if (options.parentMenu) { if (options.parentMenu.constructor !== this.constructor) { console.error( "parentMenu must be of class ContextMenu, ignoring it" ); options.parentMenu = null; } else { this.parentMenu = options.parentMenu; this.parentMenu.lock = true; this.parentMenu.current_submenu = this; } } var eventClass = null; if(options.event) //use strings because comparing classes between windows doesnt work eventClass = options.event.constructor.name; if ( eventClass !== "MouseEvent" && eventClass !== "CustomEvent" && eventClass !== "PointerEvent" ) { console.error( "Event passed to ContextMenu is not of type MouseEvent or CustomEvent. Ignoring it. ("+eventClass+")" ); options.event = null; } var root = document.createElement("div"); root.className = "litegraph litecontextmenu litemenubar-panel"; if (options.className) { root.className += " " + options.className; } root.style.minWidth = 100; root.style.minHeight = 100; root.style.pointerEvents = "none"; setTimeout(function() { root.style.pointerEvents = "auto"; }, 100); //delay so the mouse up event is not caught by this element //this prevents the default context browser menu to open in case this menu was created when pressing right button LiteGraph.pointerListenerAdd(root,"up", function(e) { //console.log("pointerevents: ContextMenu up root prevent"); e.preventDefault(); return true; }, true ); root.addEventListener( "contextmenu", function(e) { if (e.button != 2) { //right button return false; } e.preventDefault(); return false; }, true ); LiteGraph.pointerListenerAdd(root,"down", function(e) { //console.log("pointerevents: ContextMenu down"); if (e.button == 2) { that.close(); e.preventDefault(); return true; } }, true ); function on_mouse_wheel(e) { var pos = parseInt(root.style.top); root.style.top = (pos + e.deltaY * options.scroll_speed).toFixed() + "px"; e.preventDefault(); return true; } if (!options.scroll_speed) { options.scroll_speed = 0.1; } root.addEventListener("wheel", on_mouse_wheel, true); root.addEventListener("mousewheel", on_mouse_wheel, true); this.root = root; //title if (options.title) { var element = document.createElement("div"); element.className = "litemenu-title"; element.innerHTML = options.title; root.appendChild(element); } //entries var num = 0; for (var i=0; i < values.length; i++) { var name = values.constructor == Array ? values[i] : i; if (name != null && name.constructor !== String) { name = name.content === undefined ? String(name) : name.content; } var value = values[i]; this.addItem(name, value, options); num++; } //close on leave? touch enabled devices won't work TODO use a global device detector and condition on that /*LiteGraph.pointerListenerAdd(root,"leave", function(e) { console.log("pointerevents: ContextMenu leave"); if (that.lock) { return; } if (root.closing_timer) { clearTimeout(root.closing_timer); } root.closing_timer = setTimeout(that.close.bind(that, e), 500); //that.close(e); });*/ LiteGraph.pointerListenerAdd(root,"enter", function(e) { //console.log("pointerevents: ContextMenu enter"); if (root.closing_timer) { clearTimeout(root.closing_timer); } }); //insert before checking position var root_document = document; if (options.event) { root_document = options.event.target.ownerDocument; } if (!root_document) { root_document = document; } if( root_document.fullscreenElement ) root_document.fullscreenElement.appendChild(root); else root_document.body.appendChild(root); //compute best position var left = options.left || 0; var top = options.top || 0; if (options.event) { left = options.event.clientX - 10; top = options.event.clientY - 10; if (options.title) { top -= 20; } if (options.parentMenu) { var rect = options.parentMenu.root.getBoundingClientRect(); left = rect.left + rect.width; } var body_rect = document.body.getBoundingClientRect(); var root_rect = root.getBoundingClientRect(); if(body_rect.height == 0) console.error("document.body height is 0. That is dangerous, set html,body { height: 100%; }"); if (body_rect.width && left > body_rect.width - root_rect.width - 10) { left = body_rect.width - root_rect.width - 10; } if (body_rect.height && top > body_rect.height - root_rect.height - 10) { top = body_rect.height - root_rect.height - 10; } } root.style.left = left + "px"; root.style.top = top + "px"; if (options.scale) { root.style.transform = "scale(" + options.scale + ")"; } } ContextMenu.prototype.addItem = function(name, value, options) { var that = this; options = options || {}; var element = document.createElement("div"); element.className = "litemenu-entry submenu"; var disabled = false; if (value === null) { element.classList.add("separator"); //element.innerHTML = "
" //continue; } else { element.innerHTML = value && value.title ? value.title : name; element.value = value; if (value) { if (value.disabled) { disabled = true; element.classList.add("disabled"); } if (value.submenu || value.has_submenu) { element.classList.add("has_submenu"); } } if (typeof value == "function") { element.dataset["value"] = name; element.onclick_callback = value; } else { element.dataset["value"] = value; } if (value.className) { element.className += " " + value.className; } } this.root.appendChild(element); if (!disabled) { element.addEventListener("click", inner_onclick); } if (options.autoopen) { LiteGraph.pointerListenerAdd(element,"enter",inner_over); } function inner_over(e) { var value = this.value; if (!value || !value.has_submenu) { return; } //if it is a submenu, autoopen like the item was clicked inner_onclick.call(this, e); } //menu option clicked function inner_onclick(e) { var value = this.value; var close_parent = true; if (that.current_submenu) { that.current_submenu.close(e); } //global callback if (options.callback) { var r = options.callback.call( this, value, options, e, that, options.node ); if (r === true) { close_parent = false; } } //special cases if (value) { if ( value.callback && !options.ignore_item_callbacks && value.disabled !== true ) { //item callback var r = value.callback.call( this, value, options, e, that, options.extra ); if (r === true) { close_parent = false; } } if (value.submenu) { if (!value.submenu.options) { throw "ContextMenu submenu needs options"; } var submenu = new that.constructor(value.submenu.options, { callback: value.submenu.callback, event: e, parentMenu: that, ignore_item_callbacks: value.submenu.ignore_item_callbacks, title: value.submenu.title, extra: value.submenu.extra, autoopen: options.autoopen }); close_parent = false; } } if (close_parent && !that.lock) { that.close(); } } return element; }; ContextMenu.prototype.close = function(e, ignore_parent_menu) { if (this.root.parentNode) { this.root.parentNode.removeChild(this.root); } if (this.parentMenu && !ignore_parent_menu) { this.parentMenu.lock = false; this.parentMenu.current_submenu = null; if (e === undefined) { this.parentMenu.close(); } else if ( e && !ContextMenu.isCursorOverElement(e, this.parentMenu.root) ) { ContextMenu.trigger(this.parentMenu.root, LiteGraph.pointerevents_method+"leave", e); } } if (this.current_submenu) { this.current_submenu.close(e, true); } if (this.root.closing_timer) { clearTimeout(this.root.closing_timer); } // TODO implement : LiteGraph.contextMenuClosed(); :: keep track of opened / closed / current ContextMenu // on key press, allow filtering/selecting the context menu elements }; //this code is used to trigger events easily (used in the context menu mouseleave ContextMenu.trigger = function(element, event_name, params, origin) { var evt = document.createEvent("CustomEvent"); evt.initCustomEvent(event_name, true, true, params); //canBubble, cancelable, detail evt.srcElement = origin; if (element.dispatchEvent) { element.dispatchEvent(evt); } else if (element.__events) { element.__events.dispatchEvent(evt); } //else nothing seems binded here so nothing to do return evt; }; //returns the top most menu ContextMenu.prototype.getTopMenu = function() { if (this.options.parentMenu) { return this.options.parentMenu.getTopMenu(); } return this; }; ContextMenu.prototype.getFirstEvent = function() { if (this.options.parentMenu) { return this.options.parentMenu.getFirstEvent(); } return this.options.event; }; ContextMenu.isCursorOverElement = function(event, element) { var left = event.clientX; var top = event.clientY; var rect = element.getBoundingClientRect(); if (!rect) { return false; } if ( top > rect.top && top < rect.top + rect.height && left > rect.left && left < rect.left + rect.width ) { return true; } return false; }; LiteGraph.ContextMenu = ContextMenu; LiteGraph.closeAllContextMenus = function(ref_window) { ref_window = ref_window || window; var elements = ref_window.document.querySelectorAll(".litecontextmenu"); if (!elements.length) { return; } var result = []; for (var i = 0; i < elements.length; i++) { result.push(elements[i]); } for (var i=0; i < result.length; i++) { if (result[i].close) { result[i].close(); } else if (result[i].parentNode) { result[i].parentNode.removeChild(result[i]); } } }; LiteGraph.extendClass = function(target, origin) { for (var i in origin) { //copy class properties if (target.hasOwnProperty(i)) { continue; } target[i] = origin[i]; } if (origin.prototype) { //copy prototype properties for (var i in origin.prototype) { //only enumerable if (!origin.prototype.hasOwnProperty(i)) { continue; } if (target.prototype.hasOwnProperty(i)) { //avoid overwriting existing ones continue; } //copy getters if (origin.prototype.__lookupGetter__(i)) { target.prototype.__defineGetter__( i, origin.prototype.__lookupGetter__(i) ); } else { target.prototype[i] = origin.prototype[i]; } //and setters if (origin.prototype.__lookupSetter__(i)) { target.prototype.__defineSetter__( i, origin.prototype.__lookupSetter__(i) ); } } } }; //used by some widgets to render a curve editor function CurveEditor( points ) { this.points = points; this.selected = -1; this.nearest = -1; this.size = null; //stores last size used this.must_update = true; this.margin = 5; } CurveEditor.sampleCurve = function(f,points) { if(!points) return; for(var i = 0; i < points.length - 1; ++i) { var p = points[i]; var pn = points[i+1]; if(pn[0] < f) continue; var r = (pn[0] - p[0]); if( Math.abs(r) < 0.00001 ) return p[1]; var local_f = (f - p[0]) / r; return p[1] * (1.0 - local_f) + pn[1] * local_f; } return 0; } CurveEditor.prototype.draw = function( ctx, size, graphcanvas, background_color, line_color, inactive ) { var points = this.points; if(!points) return; this.size = size; var w = size[0] - this.margin * 2; var h = size[1] - this.margin * 2; line_color = line_color || "#666"; ctx.save(); ctx.translate(this.margin,this.margin); if(background_color) { ctx.fillStyle = "#111"; ctx.fillRect(0,0,w,h); ctx.fillStyle = "#222"; ctx.fillRect(w*0.5,0,1,h); ctx.strokeStyle = "#333"; ctx.strokeRect(0,0,w,h); } ctx.strokeStyle = line_color; if(inactive) ctx.globalAlpha = 0.5; ctx.beginPath(); for(var i = 0; i < points.length; ++i) { var p = points[i]; ctx.lineTo( p[0] * w, (1.0 - p[1]) * h ); } ctx.stroke(); ctx.globalAlpha = 1; if(!inactive) for(var i = 0; i < points.length; ++i) { var p = points[i]; ctx.fillStyle = this.selected == i ? "#FFF" : (this.nearest == i ? "#DDD" : "#AAA"); ctx.beginPath(); ctx.arc( p[0] * w, (1.0 - p[1]) * h, 2, 0, Math.PI * 2 ); ctx.fill(); } ctx.restore(); } //localpos is mouse in curve editor space CurveEditor.prototype.onMouseDown = function( localpos, graphcanvas ) { var points = this.points; if(!points) return; if( localpos[1] < 0 ) return; //this.captureInput(true); var w = this.size[0] - this.margin * 2; var h = this.size[1] - this.margin * 2; var x = localpos[0] - this.margin; var y = localpos[1] - this.margin; var pos = [x,y]; var max_dist = 30 / graphcanvas.ds.scale; //search closer one this.selected = this.getCloserPoint(pos, max_dist); //create one if(this.selected == -1) { var point = [x / w, 1 - y / h]; points.push(point); points.sort(function(a,b){ return a[0] - b[0]; }); this.selected = points.indexOf(point); this.must_update = true; } if(this.selected != -1) return true; } CurveEditor.prototype.onMouseMove = function( localpos, graphcanvas ) { var points = this.points; if(!points) return; var s = this.selected; if(s < 0) return; var x = (localpos[0] - this.margin) / (this.size[0] - this.margin * 2 ); var y = (localpos[1] - this.margin) / (this.size[1] - this.margin * 2 ); var curvepos = [(localpos[0] - this.margin),(localpos[1] - this.margin)]; var max_dist = 30 / graphcanvas.ds.scale; this._nearest = this.getCloserPoint(curvepos, max_dist); var point = points[s]; if(point) { var is_edge_point = s == 0 || s == points.length - 1; if( !is_edge_point && (localpos[0] < -10 || localpos[0] > this.size[0] + 10 || localpos[1] < -10 || localpos[1] > this.size[1] + 10) ) { points.splice(s,1); this.selected = -1; return; } if( !is_edge_point ) //not edges point[0] = Math.clamp(x,0,1); else point[0] = s == 0 ? 0 : 1; point[1] = 1.0 - Math.clamp(y,0,1); points.sort(function(a,b){ return a[0] - b[0]; }); this.selected = points.indexOf(point); this.must_update = true; } } CurveEditor.prototype.onMouseUp = function( localpos, graphcanvas ) { this.selected = -1; return false; } CurveEditor.prototype.getCloserPoint = function(pos, max_dist) { var points = this.points; if(!points) return -1; max_dist = max_dist || 30; var w = (this.size[0] - this.margin * 2); var h = (this.size[1] - this.margin * 2); var num = points.length; var p2 = [0,0]; var min_dist = 1000000; var closest = -1; var last_valid = -1; for(var i = 0; i < num; ++i) { var p = points[i]; p2[0] = p[0] * w; p2[1] = (1.0 - p[1]) * h; if(p2[0] < pos[0]) last_valid = i; var dist = vec2.distance(pos,p2); if(dist > min_dist || dist > max_dist) continue; closest = i; min_dist = dist; } return closest; } LiteGraph.CurveEditor = CurveEditor; //used to create nodes from wrapping functions LiteGraph.getParameterNames = function(func) { return (func + "") .replace(/[/][/].*$/gm, "") // strip single-line comments .replace(/\s+/g, "") // strip white space .replace(/[/][*][^/*]*[*][/]/g, "") // strip multi-line comments /**/ .split("){", 1)[0] .replace(/^[^(]*[(]/, "") // extract the parameters .replace(/=[^,]+/g, "") // strip any ES6 defaults .split(",") .filter(Boolean); // split & filter [""] }; /* helper for interaction: pointer, touch, mouse Listeners used by LGraphCanvas DragAndScale ContextMenu*/ LiteGraph.pointerListenerAdd = function(oDOM, sEvIn, fCall, capture=false) { if (!oDOM || !oDOM.addEventListener || !sEvIn || typeof fCall!=="function"){ //console.log("cant pointerListenerAdd "+oDOM+", "+sEvent+", "+fCall); return; // -- break -- } var sMethod = LiteGraph.pointerevents_method; var sEvent = sEvIn; // UNDER CONSTRUCTION // convert pointerevents to touch event when not available if (sMethod=="pointer" && !window.PointerEvent){ console.warn("sMethod=='pointer' && !window.PointerEvent"); console.log("Converting pointer["+sEvent+"] : down move up cancel enter TO touchstart touchmove touchend, etc .."); switch(sEvent){ case "down":{ sMethod = "touch"; sEvent = "start"; break; } case "move":{ sMethod = "touch"; //sEvent = "move"; break; } case "up":{ sMethod = "touch"; sEvent = "end"; break; } case "cancel":{ sMethod = "touch"; //sEvent = "cancel"; break; } case "enter":{ console.log("debug: Should I send a move event?"); // ??? break; } // case "over": case "out": not used at now default:{ console.warn("PointerEvent not available in this browser ? The event "+sEvent+" would not be called"); } } } switch(sEvent){ //both pointer and move events case "down": case "up": case "move": case "over": case "out": case "enter": { oDOM.addEventListener(sMethod+sEvent, fCall, capture); } // only pointerevents case "leave": case "cancel": case "gotpointercapture": case "lostpointercapture": { if (sMethod!="mouse"){ return oDOM.addEventListener(sMethod+sEvent, fCall, capture); } } // not "pointer" || "mouse" default: return oDOM.addEventListener(sEvent, fCall, capture); } } LiteGraph.pointerListenerRemove = function(oDOM, sEvent, fCall, capture=false) { if (!oDOM || !oDOM.removeEventListener || !sEvent || typeof fCall!=="function"){ //console.log("cant pointerListenerRemove "+oDOM+", "+sEvent+", "+fCall); return; // -- break -- } switch(sEvent){ //both pointer and move events case "down": case "up": case "move": case "over": case "out": case "enter": { if (LiteGraph.pointerevents_method=="pointer" || LiteGraph.pointerevents_method=="mouse"){ oDOM.removeEventListener(LiteGraph.pointerevents_method+sEvent, fCall, capture); } } // only pointerevents case "leave": case "cancel": case "gotpointercapture": case "lostpointercapture": { if (LiteGraph.pointerevents_method=="pointer"){ return oDOM.removeEventListener(LiteGraph.pointerevents_method+sEvent, fCall, capture); } } // not "pointer" || "mouse" default: return oDOM.removeEventListener(sEvent, fCall, capture); } } Math.clamp = function(v, a, b) { return a > v ? a : b < v ? b : v; }; if (typeof window != "undefined" && !window["requestAnimationFrame"]) { window.requestAnimationFrame = window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function(callback) { window.setTimeout(callback, 1000 / 60); }; } })(this); if (typeof exports != "undefined") { exports.LiteGraph = this.LiteGraph; }