AI代码解释 importEventEmitterfrom'events'classEventHandleextendsEventEmitter{init(handler){this.handler=handlerthis.handler.on("selection:created",(e)=>this._selected(e));this.handler.on("selection:updated",(e)=>this._selected(e));this.handler.on("selection:cleared",(e)=>this._selected(e));...
} 最新版本的Fabric已经不需要判断手动还是点击事件,兼容的Events.js能够兼容在移动端的手势操作: 根据下图可以看到,在不同平台下所触发的事件是不同的,所以可以开箱即用。 pc端: 移动端: 6、绘制图片 creatImg() { const imageUrl = new Image(); imageUrl.setAttribute('crossOrigin', 'Anonymous'); // 图...
import EventEmitter from 'events' class EventHandle extends EventEmitter { init(handler){ this.handler = handler this.handler.on("selection:created", (e) => this._selected(e)); this.handler.on("selection:updated", (e) => this._selected(e)); this.handler.on("selection:cleared", (e) ...
事件发射器: importEventEmitter from'events'classEventHandleextendsEventEmitter{init(handler){this.handler = handlerthis.handler.on("selection:created", (e) =>this._selected(e));this.handler.on("selection:updated", (e) =>this._selected(e));this.handler.on("selection:cleared", (e) =>this._...
Events(事件) Introduction to Fabric.js: Part 3/Fabric.js简介:第3部分 Groups(组合) Serialization(序列化) Deserialization, SVG Parser(反序列化,SVG解析器) Subclassing(子类化) Introduction to Fabric.js: Part 4/Fabric.js简介:第4部分 Free drawing(自由绘图) ...
if (this.eventsBound) { // for any reason we pass here twice we do not want to bind events twice. return; } this._onMouseDown = this._onMouseDown.bind(this); this._onTouchStart = this._onTouchStart.bind(this); this._onMouseMove = this._onMouseMove.bind(this); ...
import EventEmitter from 'events' class EventHandle extends EventEmitter { init(handler){ this.handler = handler this.handler.on("selection:created", (e) => this._selected(e)); this.handler.on("selection:updated", (e) => this._selected(e)); ...
Note that events are always scoped per canvas instance, so they don't conflict with those of others. Clicking on canvas triggers "mouse:down" and "mouse:up" on that exact canvas instance; clicking on another canvas fires events on that canvas instance. Take a look at theexamples belowto ...
Fabric exposes a number of events to allow for extensibility and decoupled functionality. To subscribe to events of a particular canvas instance, use its on method. If you wish to fire an event on a canvas, use its trigger method. The same goes for instances of fabric.Object. Events handled...
{CC_NAME} is not supported by this script. Supported chaincode names are: basic, events, ledger, private, sbe, secured" fi # 选语言 # now see what language it is written in if [ "$CC_SRC_LANGUAGE" = "go" ]; then CC_SRC_PATH="$CC_SRC_PATH/chaincode-go/" elif [ "$CC_SRC_...