[adapters] 增加小游戏适配部分源码

adapters/platforms/wechat/wrapper/builtin/Audio.js

@@ -0,0 +1,205 @@
+import HTMLAudioElement from './HTMLAudioElement'
+
+const HAVE_NOTHING = 0
+const HAVE_METADATA = 1
+const HAVE_CURRENT_DATA = 2
+const HAVE_FUTURE_DATA = 3
+const HAVE_ENOUGH_DATA = 4
+
+let SN_SEED = 1
+
+const _innerAudioContextMap = {}
+
+export default class Audio extends HTMLAudioElement {
+
+  constructor(url) {
+    super()
+
+    this._$sn = SN_SEED++;
+
+    this.HAVE_NOTHING = HAVE_NOTHING
+    this.HAVE_METADATA = HAVE_METADATA
+    this.HAVE_CURRENT_DATA = HAVE_CURRENT_DATA
+    this.HAVE_FUTURE_DATA = HAVE_FUTURE_DATA
+    this.HAVE_ENOUGH_DATA = HAVE_ENOUGH_DATA
+    
+    this.readyState = HAVE_NOTHING
+
+    const innerAudioContext = wx.createInnerAudioContext()
+
+    _innerAudioContextMap[this._$sn] = innerAudioContext
+
+    this._canplayEvents = [
+      'load',
+      'loadend',
+      'canplay',
+      'canplaythrough',
+      'loadedmetadata'
+    ]
+
+    innerAudioContext.onCanplay(() => {
+      this._loaded = true
+      this.readyState = this.HAVE_CURRENT_DATA
+      this._canplayEvents.forEach((type) => {
+          this.dispatchEvent({ type: type })
+      })
+    })
+    innerAudioContext.onPlay(() => {
+      this._paused = _innerAudioContextMap[this._$sn].paused
+      this.dispatchEvent({ type: 'play' })
+    })
+    innerAudioContext.onPause(() => {
+      this._paused = _innerAudioContextMap[this._$sn].paused
+      this.dispatchEvent({ type: 'pause' })
+    })
+    innerAudioContext.onEnded(() => {
+      this._paused = _innerAudioContextMap[this._$sn].paused
+      if (_innerAudioContextMap[this._$sn].loop === false) {
+          this.dispatchEvent({ type: 'ended' })
+      }
+      this.readyState = HAVE_ENOUGH_DATA
+    })
+    innerAudioContext.onError(() => {
+      this._paused = _innerAudioContextMap[this._$sn].paused
+      this.dispatchEvent({ type: 'error' })
+    })
+
+    if (url) {
+      this.src = url
+    } else {
+        this._src = ''
+    }
+
+    this._loop = innerAudioContext.loop
+    this._autoplay = innerAudioContext.autoplay
+    this._paused = innerAudioContext.paused
+    this._volume = innerAudioContext.volume
+    this._muted = false;
+  }
+  
+  addEventListener(type, listener, options = {}) {
+    super.addEventListener(type, listener, options)
+
+    type = String(type).toLowerCase()
+
+    if (this._loaded && this._canplayEvents.indexOf(type) !== -1) {
+        this.dispatchEvent({ type: type })
+    }
+  }
+
+  load() {
+    // console.warn('HTMLAudioElement.load() is not implemented.')
+    // weixin doesn't need call load() manually
+  }
+
+  play() {
+    _innerAudioContextMap[this._$sn].play()
+  }
+
+  resume() {
+    _innerAudioContextMap[this._$sn].resume()
+  }
+
+  pause() {
+    _innerAudioContextMap[this._$sn].pause()
+  }
+
+  stop() {
+      _innerAudioContextMap[this._$sn].stop()
+  }
+
+  destroy() {
+    _innerAudioContextMap[this._$sn].destroy()
+  }
+
+  canPlayType(mediaType = '') {
+    if (typeof mediaType !== 'string') {
+      return ''
+    }
+
+    if (mediaType.indexOf('audio/mpeg') > -1 || mediaType.indexOf('audio/mp4')) {
+      return 'probably'
+    }
+    return ''
+  }
+
+  get currentTime() {
+    return _innerAudioContextMap[this._$sn].currentTime
+  }
+
+  set currentTime(value) {
+    _innerAudioContextMap[this._$sn].seek(value)
+  }
+
+  get duration () {
+    return _innerAudioContextMap[this._$sn].duration
+  }
+
+  get src() {
+    return this._src
+  }
+
+  set src(value) {
+    this._src = value
+    this._loaded = false
+    this.readyState = this.HAVE_NOTHING
+
+    const innerAudioContext = _innerAudioContextMap[this._$sn]
+    
+    innerAudioContext.src = value
+  }
+
+  get loop() {
+    return this._loop
+  }
+
+  set loop(value) {
+    this._loop = value
+    _innerAudioContextMap[this._$sn].loop = value
+  }
+
+  get autoplay() {
+    return this.autoplay
+  }
+
+  set autoplay(value) {
+    this._autoplay = value
+    _innerAudioContextMap[this._$sn].autoplay = value
+  }
+
+  get paused() {
+    return this._paused;
+  }
+
+  get volume() {
+    return this._volume;
+  }
+
+  set volume(value) {
+    this._volume = value;
+    if (!this._muted) {
+      _innerAudioContextMap[this._$sn].volume = value;
+    }
+  }
+
+  get muted() {
+    return this._muted;
+  }
+
+  set muted(value) {
+    this._muted = value;
+    if (value) {
+      _innerAudioContextMap[this._$sn].volume = 0;
+    } else {
+      _innerAudioContextMap[this._$sn].volume = this._volume;
+    }
+  }
+
+  cloneNode() {
+    const newAudio = new Audio()
+    newAudio.loop = this.loop
+    newAudio.autoplay = this.autoplay
+    newAudio.src = this.src
+    return newAudio
+  }
+}

adapters/platforms/wechat/wrapper/builtin/Canvas.js

@@ -0,0 +1,64 @@
+// import HTMLCanvasElement from './HTMLCanvasElement'
+import { innerWidth, innerHeight } from './WindowProperties'
+
+let hasModifiedCanvasPrototype = false
+let hasInit2DContextConstructor = false
+let hasInitWebGLContextConstructor = false
+
+export default function Canvas() {
+  const canvas = wx.createCanvas()
+
+  canvas.type = 'canvas'
+
+  // canvas.__proto__.__proto__.__proto__ = new HTMLCanvasElement()
+
+  const _getContext = canvas.getContext
+
+  canvas.getBoundingClientRect = () => {
+    const ret = {
+      top: 0,
+      left: 0,
+      width: window.innerWidth,
+      height: window.innerHeight
+    }
+    return ret
+  }
+
+  canvas.style = {
+    top: '0px',
+    left: '0px',
+    width: innerWidth + 'px',
+    height: innerHeight + 'px',
+  }
+
+  canvas.addEventListener = function (type, listener, options = {}) {
+    // console.log('canvas.addEventListener', type);
+    document.addEventListener(type, listener, options);
+  }
+
+  canvas.removeEventListener = function (type, listener) {
+    // console.log('canvas.removeEventListener', type);
+    document.removeEventListener(type, listener);
+  }
+
+  canvas.dispatchEvent = function (event = {}) {
+    console.log('canvas.dispatchEvent' , event.type, event);
+    // nothing to do
+  }
+
+  Object.defineProperty(canvas, 'clientWidth', {
+    enumerable: true,
+    get: function get() {
+      return innerWidth
+    }
+  })
+
+  Object.defineProperty(canvas, 'clientHeight', {
+    enumerable: true,
+    get: function get() {
+      return innerHeight
+    }
+  })
+
+  return canvas
+}

adapters/platforms/wechat/wrapper/builtin/Element.js

@@ -0,0 +1,10 @@
+import Node from './Node'
+
+export default class Element extends Node {
+  className = ''
+  children = []
+
+  constructor() {
+    super()
+  }
+}

adapters/platforms/wechat/wrapper/builtin/Event.js

@@ -0,0 +1,14 @@
+import {noop} from './util'
+
+export default class Event {
+  cancelBubble = false
+  cancelable = false
+  target = null
+  timestampe = Date.now()
+  preventDefault = noop
+  stopPropagation = noop
+
+  constructor(type) {
+    this.type = type
+  }
+}

adapters/platforms/wechat/wrapper/builtin/EventIniter/MouseEvent.js

@@ -0,0 +1,5 @@
+export default class MouseEvent {
+    constructor() {
+
+    }
+}

adapters/platforms/wechat/wrapper/builtin/EventIniter/TouchEvent.js

@@ -0,0 +1,32 @@
+import { noop } from '../util/index.js'
+
+export default class TouchEvent {
+  touches = []
+  targetTouches = []
+  changedTouches = []
+  preventDefault = noop
+  stopPropagation = noop
+
+  constructor(type) {
+    this.type = type
+    this.target = window.canvas
+    this.currentTarget = window.canvas
+  }
+}
+
+function touchEventHandlerFactory(type) {
+  return (event) => {
+    const touchEvent = new TouchEvent(type)
+
+    touchEvent.touches = event.touches
+    touchEvent.targetTouches = Array.prototype.slice.call(event.touches)
+    touchEvent.changedTouches = event.changedTouches
+    touchEvent.timeStamp = event.timeStamp
+    document.dispatchEvent(touchEvent)
+  }
+}
+
+wx.onTouchStart(touchEventHandlerFactory('touchstart'))
+wx.onTouchMove(touchEventHandlerFactory('touchmove'))
+wx.onTouchEnd(touchEventHandlerFactory('touchend'))
+wx.onTouchCancel(touchEventHandlerFactory('touchcancel'))

adapters/platforms/wechat/wrapper/builtin/EventIniter/index.js

@@ -0,0 +1,2 @@
+export TouchEvent from './TouchEvent'
+export MouseEvent from './MouseEvent'

adapters/platforms/wechat/wrapper/builtin/EventTarget.js

@@ -0,0 +1,57 @@
+const _events = new WeakMap()
+
+export default class EventTarget {
+  constructor() {
+    _events.set(this, {})
+  }
+
+  addEventListener(type, listener, options = {}) {
+    let events = _events.get(this)
+
+    if (!events) {
+      events = {}
+      _events.set(this, events)
+    }
+    if (!events[type]) {
+      events[type] = []
+    }
+    events[type].push(listener)
+
+    if (options.capture) {
+      // console.warn('EventTarget.addEventListener: options.capture is not implemented.')
+    }
+    if (options.once) {
+      // console.warn('EventTarget.addEventListener: options.once is not implemented.')
+    }
+    if (options.passive) {
+      // console.warn('EventTarget.addEventListener: options.passive is not implemented.')
+    }
+  }
+
+  removeEventListener(type, listener) {
+    const events = _events.get(this)
+
+    if (events) {
+      const listeners = events[type]
+
+      if (listeners && listeners.length > 0) {
+          for (let i = listeners.length; i--; i > 0) {
+              if (listeners[i] === listener) {
+                  listeners.splice(i, 1)
+                  break
+              }
+          }
+      }
+    }
+  }
+
+  dispatchEvent(event = {}) {
+    const listeners = _events.get(this)[event.type]
+
+    if (listeners) {
+      for (let i = 0; i < listeners.length; i++) {
+        listeners[i](event)
+      }
+    }
+  }
+}

adapters/platforms/wechat/wrapper/builtin/FileReader.js

@@ -0,0 +1,7 @@
+/*
+ * TODO 使用 wx.readFile 来封装 FileReader
+ */
+export default class FileReader {
+  construct() {
+  }
+}

adapters/platforms/wechat/wrapper/builtin/HTMLAudioElement.js

@@ -0,0 +1,7 @@
+import HTMLMediaElement from './HTMLMediaElement'
+
+export default class HTMLAudioElement extends HTMLMediaElement {
+  constructor() {
+    super('audio')
+  }
+}

adapters/platforms/wechat/wrapper/builtin/HTMLCanvasElement.js

@@ -0,0 +1,20 @@
+// import HTMLElement from './HTMLElement';
+
+// export default class HTMLCanvasElement extends HTMLElement
+// {
+//     constructor(){
+//         super('canvas')
+//     }
+// };
+
+import Canvas from './Canvas'
+import HTMLElement from './HTMLElement'
+
+GameGlobal.screencanvas = GameGlobal.screencanvas || new Canvas();
+const canvas = GameGlobal.screencanvas;
+
+const canvasConstructor = canvas.constructor;
+
+// canvasConstructor.__proto__.__proto__ = new HTMLElement();
+
+export default canvasConstructor;

adapters/platforms/wechat/wrapper/builtin/HTMLElement.js

@@ -0,0 +1,54 @@
+import Element from './Element'
+import { noop } from './util/index.js'
+import { innerWidth, innerHeight } from './WindowProperties'
+
+export default class HTMLElement extends Element {
+  className = ''
+  childern = []
+  style = {
+    width: `${innerWidth}px`,
+    height: `${innerHeight}px`
+  }
+
+  insertBefore = noop
+
+  innerHTML = ''
+
+  constructor(tagName = '') {
+    super()
+    this.tagName = tagName.toUpperCase()
+  }
+
+  setAttribute(name, value) {
+    this[name] = value
+  }
+
+  getAttribute(name) {
+    return this[name]
+  }
+
+  get clientWidth() {
+    const ret = parseInt(this.style.fontSize, 10) * this.innerHTML.length
+
+    return Number.isNaN(ret) ? 0 : ret
+  }
+
+  get clientHeight() {
+    const ret = parseInt(this.style.fontSize, 10)
+
+    return Number.isNaN(ret) ? 0 : ret
+  }
+
+  getBoundingClientRect() {
+    return {
+      top: 0,
+      left: 0,
+      width: innerWidth,
+      height: innerHeight
+    }
+  }
+
+  focus() {
+
+  }
+}

adapters/platforms/wechat/wrapper/builtin/HTMLImageElement.js

@@ -0,0 +1,16 @@
+// import HTMLElement from './HTMLElement';
+
+// export default class HTMLImageElement extends HTMLElement
+// {
+//     constructor(){
+//         super('img')
+//     }
+// };
+
+import HTMLElement from './HTMLElement'
+
+const imageConstructor = wx.createImage().constructor;
+
+// imageConstructor.__proto__.__proto__ = new HTMLElement();
+
+export default imageConstructor;

adapters/platforms/wechat/wrapper/builtin/HTMLMediaElement.js

@@ -0,0 +1,25 @@
+import HTMLElement from './HTMLElement'
+
+export default class HTMLMediaElement extends HTMLElement {
+  constructor(type) {
+    super(type)
+  }
+
+  addTextTrack() {
+  }
+
+  captureStream() {
+  }
+
+  fastSeek() {
+  }
+
+  load() {
+  }
+
+  pause() {
+  }
+
+  play() {
+  }
+}

adapters/platforms/wechat/wrapper/builtin/HTMLVideoElement.js

@@ -0,0 +1,8 @@
+import HTMLMediaElement from './HTMLMediaElement';
+
+export default class HTMLVideoElement extends HTMLMediaElement
+{
+    constructor(){
+        super('video')
+    }
+};

adapters/platforms/wechat/wrapper/builtin/Image.js

@@ -0,0 +1,9 @@
+import HTMLImageElement from './HTMLImageElement'
+
+export default function() {
+    const image = wx.createImage();
+
+    // image.__proto__.__proto__.__proto__ = new HTMLImageElement();
+
+    return image;
+};

adapters/platforms/wechat/wrapper/builtin/ImageBitmap.js

@@ -0,0 +1,5 @@
+export default class ImageBitmap {
+    constructor() {
+        // TODO
+    }
+}

adapters/platforms/wechat/wrapper/builtin/Node.js

@@ -0,0 +1,34 @@
+import EventTarget from './EventTarget.js'
+
+export default class Node extends EventTarget {
+  constructor() {
+    super()
+  }
+
+  childNodes = []
+
+  appendChild(node) {
+    this.childNodes.push(node)
+    // if (node instanceof Node) {
+    //   this.childNodes.push(node)
+    // } else {
+    //   throw new TypeError('Failed to executed \'appendChild\' on \'Node\': parameter 1 is not of type \'Node\'.')
+    // }
+  }
+
+  cloneNode() {
+    const copyNode = Object.create(this)
+
+    Object.assign(copyNode, this)
+    return copyNode
+  }
+
+  removeChild(node) {
+    const index = this.childNodes.findIndex((child) => child === node)
+
+    if (index > -1) {
+      return this.childNodes.splice(index, 1)
+    }
+    return null
+  }
+}

adapters/platforms/wechat/wrapper/builtin/WebGLRenderingContext.js

@@ -0,0 +1,5 @@
+export default class WebGLRenderingContext {
+    constructor() {
+        // TODO
+    }
+}

adapters/platforms/wechat/wrapper/builtin/WebSocket.js

@@ -0,0 +1,87 @@
+const _socketTask = new WeakMap()
+
+export default class WebSocket {
+  static CONNECTING = 0 // The connection is not yet open.
+  static OPEN = 1 // The connection is open and ready to communicate.
+  static CLOSING = 2 // The connection is in the process of closing.
+  static CLOSED = 3 // The connection is closed or couldn't be opened.
+
+  binaryType = '' // TODO 更新 binaryType
+  bufferedAmount = 0 // TODO 更新 bufferedAmount
+  extensions = ''
+
+  onclose = null
+  onerror = null
+  onmessage = null
+  onopen = null
+
+  protocol = '' // TODO 小程序内目前获取不到，实际上需要根据服务器选择的 sub-protocol 返回
+  readyState = 3
+
+  constructor(url, protocols = []) {
+    if (typeof url !== 'string' || !(/(^ws:\/\/)|(^wss:\/\/)/).test(url)) {
+      throw new TypeError(`Failed to construct 'WebSocket': The URL '${url}' is invalid`)
+    }
+
+    this.url = url
+    this.readyState = WebSocket.CONNECTING
+
+    const socketTask = wx.connectSocket({
+      url,
+      protocols: Array.isArray(protocols) ? protocols : [protocols],
+      tcpNoDelay: true
+    })
+
+    _socketTask.set(this, socketTask)
+
+    socketTask.onClose((res) => {
+      this.readyState = WebSocket.CLOSED
+      if (typeof this.onclose === 'function') {
+        this.onclose(res)
+      }
+    })
+
+    socketTask.onMessage((res) => {
+      if (typeof this.onmessage === 'function') {
+        this.onmessage(res)
+      }
+    })
+
+    socketTask.onOpen(() => {
+      this.readyState = WebSocket.OPEN
+      if (typeof this.onopen === 'function') {
+        this.onopen()
+      }
+    })
+
+    socketTask.onError((res) => {
+      if (typeof this.onerror === 'function') {
+        this.onerror(new Error(res.errMsg))
+      }
+    })
+
+    return this
+  }
+
+  close(code, reason) {
+    this.readyState = WebSocket.CLOSING
+    const socketTask = _socketTask.get(this)
+
+    socketTask.close({
+      code,
+      reason
+    })
+  }
+
+  send(data) {
+    if (typeof data !== 'string' && !(data instanceof ArrayBuffer) && !ArrayBuffer.isView(data)) {
+      throw new TypeError(`Failed to send message: The data ${data} is invalid`)
+    }
+
+    const socketTask = _socketTask.get(this)
+
+    socketTask.send({
+      data
+    })
+  }
+}

adapters/platforms/wechat/wrapper/builtin/WindowProperties.js

@@ -0,0 +1,21 @@
+const { screenWidth, screenHeight, devicePixelRatio } = wx.getSystemInfoSync()
+
+export const innerWidth = screenWidth
+export const innerHeight = screenHeight
+export { devicePixelRatio }
+export const screen = {
+  width: screenWidth,
+  height: screenHeight,
+  availWidth: innerWidth,
+  availHeight: innerHeight,
+  availLeft: 0,
+  availTop: 0,
+}
+
+export const performance = {
+  now: Date.now
+};
+
+export const ontouchstart = null;
+export const ontouchmove = null;
+export const ontouchend = null;

adapters/platforms/wechat/wrapper/builtin/Worker.js

@@ -0,0 +1,5 @@
+export default function(file) {
+    const worker = wx.createWorker(file);
+
+    return worker;
+};

adapters/platforms/wechat/wrapper/builtin/XMLHttpRequest.js

@@ -0,0 +1,172 @@
+import EventTarget from './EventTarget.js'
+
+const _url = new WeakMap()
+const _method = new WeakMap()
+const _requestHeader = new WeakMap()
+const _responseHeader = new WeakMap()
+const _requestTask = new WeakMap()
+
+function _triggerEvent(type, ...args) {
+  if (typeof this[`on${type}`] === 'function') {
+    this[`on${type}`].apply(this, args)
+  }
+}
+
+function _changeReadyState(readyState) {
+  this.readyState = readyState
+  _triggerEvent.call(this, 'readystatechange')
+}
+
+export default class XMLHttpRequest extends EventTarget {
+  // TODO 没法模拟 HEADERS_RECEIVED 和 LOADING 两个状态
+  static UNSEND = 0
+  static OPENED = 1
+  static HEADERS_RECEIVED = 2
+  static LOADING = 3
+  static DONE = 4
+
+  timeout = 0;
+  /*
+   * TODO 这一批事件应该是在 XMLHttpRequestEventTarget.prototype 上面的
+   */
+  onabort = null
+  onerror = null
+  onload = null
+  onloadstart = null
+  onprogress = null
+  ontimeout = null
+  onloadend = null
+
+  onreadystatechange = null
+  readyState = 0
+  response = null
+  responseText = null
+  responseType = ''
+  responseXML = null
+  status = 0
+  statusText = ''
+  upload = {}
+  withCredentials = false
+
+  constructor() {
+    super();
+
+    _requestHeader.set(this, {
+      'content-type': 'application/x-www-form-urlencoded'
+    })
+    _responseHeader.set(this, {})
+  }
+
+  abort() {
+    const myRequestTask =  _requestTask.get(this)
+
+    if (myRequestTask) {
+      myRequestTask.abort()
+    }
+  }
+
+  getAllResponseHeaders() {
+    const responseHeader = _responseHeader.get(this)
+
+    return Object.keys(responseHeader).map((header) => {
+      return `${header}: ${responseHeader[header]}`
+    }).join('\n')
+  }
+
+  getResponseHeader(header) {
+    return _responseHeader.get(this)[header]
+  }
+
+  open(method, url/* async, user, password 这几个参数在小程序内不支持*/) {
+    _method.set(this, method)
+    _url.set(this, url)
+    _changeReadyState.call(this, XMLHttpRequest.OPENED)
+  }
+
+  overrideMimeType() {
+  }
+
+  send(data = '') {
+    if (this.readyState !== XMLHttpRequest.OPENED) {
+      throw new Error("Failed to execute 'send' on 'XMLHttpRequest': The object's state must be OPENED.")
+    } else {
+      let myRequestTask = wx.request({
+        data,
+        url: _url.get(this),
+        method: _method.get(this),
+        header: _requestHeader.get(this),
+        dataType: 'other',
+        responseType: this.responseType === 'arraybuffer' ? 'arraybuffer' : 'text',
+        timeout: this.timeout || undefined,
+        success: ({ data, statusCode, header }) => {
+          this.status = statusCode
+          _responseHeader.set(this, header)
+          _triggerEvent.call(this, 'loadstart')
+          _changeReadyState.call(this, XMLHttpRequest.HEADERS_RECEIVED)
+          _changeReadyState.call(this, XMLHttpRequest.LOADING)
+
+          switch (this.responseType) {
+            case 'json':
+              this.responseText = data;
+              try {
+                this.response = JSON.parse(data);
+              }
+              catch (e) {
+                this.response = null;
+              }
+              break;
+            case '':
+            case 'text':
+              this.responseText = this.response = data;
+              break;
+            case 'arraybuffer': 
+              this.response = data;
+              this.responseText = '';
+              var bytes = new Uint8Array(data);
+              var len = bytes.byteLength;
+
+              for (var i = 0; i < len; i++) {
+                this.responseText += String.fromCharCode(bytes[i]);
+              }
+              break;
+            default:
+              this.response = null;
+          }
+          _changeReadyState.call(this, XMLHttpRequest.DONE)
+          _triggerEvent.call(this, 'load')
+          _triggerEvent.call(this, 'loadend')
+        },
+        fail: ({ errMsg }) => {
+          // TODO 规范错误
+          if (errMsg.indexOf('abort') !== -1) {
+            _triggerEvent.call(this, 'abort')
+          } else if (errMsg.indexOf('timeout') !== -1) {
+            _triggerEvent.call(this, 'timeout')
+          } else {
+            _triggerEvent.call(this, 'error', errMsg)
+          }
+          _triggerEvent.call(this, 'loadend')
+        }
+      })
+
+      _requestTask.set(this, myRequestTask);
+    }
+  }
+
+  setRequestHeader(header, value) {
+    const myHeader = _requestHeader.get(this)
+
+    myHeader[header] = value
+    _requestHeader.set(this, myHeader)
+  }
+
+  addEventListener(type, listener) {
+      if (typeof listener === 'function') {
+          let _this = this
+          let event = { target: _this }
+          this['on' + type] = function (event) {
+              listener.call(_this, event)
+          }
+      }
+  }
+}

adapters/platforms/wechat/wrapper/builtin/document.js

@@ -0,0 +1,127 @@
+import * as window from './window'
+import HTMLElement from './HTMLElement'
+import HTMLVideoElement from './HTMLVideoElement'
+import Image from './Image'
+import Audio from './Audio'
+import Canvas from './Canvas'
+import './EventIniter/index.js'
+
+const events = {}
+
+const document = {
+  readyState: 'complete',
+  visibilityState: 'visible',
+  documentElement: window,
+  hidden: false,
+  style: {},
+  location: window.location,
+  ontouchstart: null,
+  ontouchmove: null,
+  ontouchend: null,
+
+  head: new HTMLElement('head'),
+  body: new HTMLElement('body'),
+
+  createElement(tagName) {
+    if (tagName === 'canvas') {
+      return new Canvas()
+    } else if (tagName === 'audio') {
+      return new Audio()
+    } else if (tagName === 'img') {
+      return new Image()
+    }else if (tagName === 'video') {
+      return new HTMLVideoElement()
+    }
+
+    return new HTMLElement(tagName)
+  },
+
+  createElementNS(nameSpace, tagName) {
+    return this.createElement(tagName);
+  },
+
+  getElementById(id) {
+    if (id === window.canvas.id) {
+      return window.canvas
+    }
+    return null
+  },
+
+  getElementsByTagName(tagName) {
+    if (tagName === 'head') {
+      return [document.head]
+    } else if (tagName === 'body') {
+      return [document.body]
+    } else if (tagName === 'canvas') {
+      return [window.canvas]
+    }
+    return []
+  },
+
+  getElementsByName(tagName) {
+    if (tagName === 'head') {
+      return [document.head]
+    } else if (tagName === 'body') {
+      return [document.body]
+    } else if (tagName === 'canvas') {
+      return [window.canvas]
+    }
+    return []
+  },
+
+  querySelector(query) {
+    if (query === 'head') {
+      return document.head
+    } else if (query === 'body') {
+      return document.body
+    } else if (query === 'canvas') {
+      return window.canvas
+    } else if (query === `#${window.canvas.id}`) {
+      return window.canvas
+    }
+    return null
+  },
+
+  querySelectorAll(query) {
+    if (query === 'head') {
+      return [document.head]
+    } else if (query === 'body') {
+      return [document.body]
+    } else if (query === 'canvas') {
+      return [window.canvas]
+    }
+    return []
+  },
+
+  addEventListener(type, listener) {
+    if (!events[type]) {
+      events[type] = []
+    }
+    events[type].push(listener)
+  },
+
+  removeEventListener(type, listener) {
+    const listeners = events[type]
+
+    if (listeners && listeners.length > 0) {
+      for (let i = listeners.length; i--; i > 0) {
+        if (listeners[i] === listener) {
+          listeners.splice(i, 1)
+          break
+        }
+      }
+    }
+  },
+
+  dispatchEvent(event) {
+    const listeners = events[event.type]
+
+    if (listeners) {
+      for (let i = 0; i < listeners.length; i++) {
+        listeners[i](event)
+      }
+    }
+  }
+}
+
+export default document

adapters/platforms/wechat/wrapper/builtin/index.js

@@ -0,0 +1,55 @@
+import * as _window from './window'
+import document from './document'
+import HTMLElement from './HTMLElement'
+
+const global = GameGlobal
+
+function inject () {
+  _window.document = document;
+
+  _window.addEventListener = (type, listener) => {
+    _window.document.addEventListener(type, listener)
+  }
+  _window.removeEventListener = (type, listener) => {
+    _window.document.removeEventListener(type, listener)
+  }
+  _window.dispatchEvent = _window.document.dispatchEvent;
+
+  const { platform } = wx.getSystemInfoSync()
+
+  // 开发者工具无法重定义 window
+  if (typeof __devtoolssubcontext === 'undefined' && platform === 'devtools') {
+    for (const key in _window) {
+      const descriptor = Object.getOwnPropertyDescriptor(global, key)
+
+      if (!descriptor || descriptor.configurable === true) {
+        Object.defineProperty(window, key, {
+          value: _window[key]
+        })
+      }
+    }
+
+    for (const key in _window.document) {
+      const descriptor = Object.getOwnPropertyDescriptor(global.document, key)
+
+      if (!descriptor || descriptor.configurable === true) {
+        Object.defineProperty(global.document, key, {
+          value: _window.document[key]
+        })
+      }
+    }
+    window.parent = window
+  } else {
+    for (const key in _window) {
+      global[key] = _window[key]
+    }
+    global.window = _window
+    window = global
+    window.top = window.parent = window
+  }
+}
+
+if (!GameGlobal.__isAdapterInjected) {
+  GameGlobal.__isAdapterInjected = true
+  inject()
+}

adapters/platforms/wechat/wrapper/builtin/localStorage.js

@@ -0,0 +1,31 @@
+const localStorage = {
+  get length() {
+    const { keys } = wx.getStorageInfoSync()
+
+    return keys.length
+  },
+
+  key(n) {
+    const { keys } = wx.getStorageInfoSync()
+
+    return keys[n]
+  },
+
+  getItem(key) {
+    return wx.getStorageSync(key)
+  },
+
+  setItem(key, value) {
+    return wx.setStorageSync(key, value)
+  },
+
+  removeItem(key) {
+    wx.removeStorageSync(key)
+  },
+
+  clear() {
+    wx.clearStorageSync()
+  }
+}
+
+export default localStorage

adapters/platforms/wechat/wrapper/builtin/location.js

@@ -0,0 +1,7 @@
+const location = {
+  href: 'game.js',
+  reload() {
+  }
+}
+
+export default location

adapters/platforms/wechat/wrapper/builtin/navigator.js

@@ -0,0 +1,38 @@
+import { noop } from './util/index.js'
+
+// TODO 需要 wx.getSystemInfo 获取更详细信息
+const systemInfo = wx.getSystemInfoSync()
+console.log(systemInfo)
+
+const system = systemInfo.system;
+const platform = systemInfo.platform;
+const language = systemInfo.language;
+const wechatVersioin = systemInfo.version;
+
+const android = system ? system.toLowerCase().indexOf('android') !== -1 : false;
+
+const uaDesc = android ? `Android; CPU ${system}` : `iPhone; CPU iPhone OS ${system} like Mac OS X`;
+const ua = `Mozilla/5.0 (${uaDesc}) AppleWebKit/603.1.30 (KHTML, like Gecko) Mobile/14E8301 MicroMessenger/${wechatVersioin} MiniGame NetType/WIFI Language/${language}`;
+
+const navigator = {
+  platform,
+  language: language,
+  appVersion: `5.0 (${uaDesc}) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1`,
+  userAgent: ua,
+  onLine: true, // TODO 用 wx.getNetworkStateChange 和 wx.onNetworkStateChange 来返回真实的状态
+
+  // TODO 用 wx.getLocation 来封装 geolocation
+  geolocation: {
+    getCurrentPosition: noop,
+    watchPosition: noop,
+    clearWatch: noop
+  }
+}
+
+if (wx.onNetworkStatusChange) {
+    wx.onNetworkStatusChange(function(event){
+        navigator.onLine = event.isConnected;
+    });
+}
+
+export default navigator

adapters/platforms/wechat/wrapper/builtin/util/index.js

@@ -0,0 +1 @@
+export function noop() {}

adapters/platforms/wechat/wrapper/builtin/window.js

@@ -0,0 +1,41 @@
+import Canvas from './Canvas'
+
+export navigator from './navigator'
+export XMLHttpRequest from './XMLHttpRequest'
+export WebSocket from './WebSocket'
+export Image from './Image'
+export ImageBitmap from './ImageBitmap'
+export Audio from './Audio'
+export FileReader from './FileReader'
+export HTMLElement from './HTMLElement'
+export HTMLImageElement from './HTMLImageElement'
+export HTMLCanvasElement from './HTMLCanvasElement'
+export HTMLMediaElement from './HTMLMediaElement'
+export HTMLAudioElement from './HTMLAudioElement'
+export HTMLVideoElement from './HTMLVideoElement'
+export WebGLRenderingContext from './WebGLRenderingContext'
+export { TouchEvent, MouseEvent, DeviceMotionEvent } from './EventIniter/index.js'
+export localStorage from './localStorage'
+export location from './location'
+export * from './WindowProperties'
+
+// 暴露全局的 canvas
+GameGlobal.screencanvas = GameGlobal.screencanvas || new Canvas()
+const canvas = GameGlobal.screencanvas;
+
+const {
+    setTimeout,
+    setInterval,
+    clearTimeout,
+    clearInterval,
+    requestAnimationFrame,
+    cancelAnimationFrame,
+} = GameGlobal;
+
+export { canvas }
+export { setTimeout }
+export { setInterval }
+export { clearTimeout }
+export { clearInterval }
+export { requestAnimationFrame }
+export { cancelAnimationFrame }