Merge pull request #158 from ShenWeiQun/master

fix: 修复 vue 使用 proxy 代理时找不到对象的BUG

src/modules/widget/type/Compass.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'compass', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
     this._wrapper.onmousedown = (e) => {
       this._handleMouseDown(e)

src/modules/widget/type/ContextMenu.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'contextMenu', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
     this._handler = new Cesium.ScreenSpaceEventHandler(this._viewer.canvas)
   }

src/modules/widget/type/DistanceLegend.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'distanceLegend', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
   }
 

src/modules/widget/type/HawkeyeMap.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'hawkeyeMap', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
     this._viewer.camera.percentageChanged = 0.01
   }

src/modules/widget/type/LoadingMask.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'loadingMask', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
   }
 

src/modules/widget/type/LocationBar.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'locationBar', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
   }
 

src/modules/widget/type/MapSplit.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'mapSplit', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
   }
 

src/modules/widget/type/MapSwitch.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'mapSwitch', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
     this.enable = true
-    let self = this
+    // let self = this
     this._wrapper.onmouseover = () => {
       let width = 80
       let rightMargin = 5

src/modules/widget/type/Popup.js

   _installHook() {
     this.enable = true
     this._bindEvent()
+    const self = this
     Object.defineProperty(this._viewer, 'popup', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
   }
 

src/modules/widget/type/SceneSplit.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'sceneSplit', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
   }
 

src/modules/widget/type/TilesetSplit.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'tilesetSplit', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
   }
 

src/modules/widget/type/Tooltip.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'tooltip', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
   }
 

src/modules/widget/type/ZoomController.js

    * @private
    */
   _installHook() {
+    const self = this
     Object.defineProperty(this._viewer, 'zoomController', {
-      value: this,
-      writable: false,
+      get() {
+        return self
+      },
     })
   }