Use ol.Disposable instead of goog.Disposable

src/ol/control/zoomslidercontrol.js

@@ -118,14 +118,17 @@ ol.control.ZoomSlider = function(opt_options) {
       [className, ol.css.CLASS_UNSELECTABLE, ol.css.CLASS_CONTROL],
       thumbElement);
 
-  var dragger = new ol.pointer.PointerEventHandler(containerElement);
-  this.registerDisposable(dragger);
+  /**
+   * @type {ol.pointer.PointerEventHandler}
+   * @private
+   */
+  this.dragger_ = new ol.pointer.PointerEventHandler(containerElement);
 
-  ol.events.listen(dragger, ol.pointer.EventType.POINTERDOWN,
+  ol.events.listen(this.dragger_, ol.pointer.EventType.POINTERDOWN,
       this.handleDraggerStart_, this);
-  ol.events.listen(dragger, ol.pointer.EventType.POINTERMOVE,
+  ol.events.listen(this.dragger_, ol.pointer.EventType.POINTERMOVE,
       this.handleDraggerDrag_, this);
-  ol.events.listen(dragger, ol.pointer.EventType.POINTERUP,
+  ol.events.listen(this.dragger_, ol.pointer.EventType.POINTERUP,
       this.handleDraggerEnd_, this);
 
   ol.events.listen(containerElement, ol.events.EventType.CLICK,
@@ -143,6 +146,15 @@ ol.control.ZoomSlider = function(opt_options) {
 goog.inherits(ol.control.ZoomSlider, ol.control.Control);
 
 
+/**
+ * @inheritDoc
+ */
+ol.control.ZoomSlider.prototype.disposeInternal = function() {
+  this.dragger_.dispose();
+  goog.base(this, 'disposeInternal');
+};
+
+
 /**
  * The enum for available directions.
  *

src/ol/disposable.js

@@ -0,0 +1,30 @@
+goog.provide('ol.Disposable');
+
+/**
+ * Objects that need to clean up after themselves.
+ * @constructor
+ */
+ol.Disposable = function() {};
+
+/**
+ * The object has already been disposed.
+ * @type {boolean}
+ * @private
+ */
+ol.Disposable.prototype.disposed_ = false;
+
+/**
+ * Clean up.
+ */
+ol.Disposable.prototype.dispose = function() {
+  if (!this.disposed_) {
+    this.disposed_ = true;
+    this.disposeInternal();
+  }
+};
+
+/**
+ * Extension point for disposable objects.
+ * @protected
+ */
+ol.Disposable.prototype.disposeInternal = function() {};

src/ol/events/eventtarget.js

@@ -1,6 +1,6 @@
 goog.provide('ol.events.EventTarget');
 
-goog.require('goog.Disposable');
+goog.require('ol.Disposable');
 goog.require('ol.events');
 goog.require('ol.events.Event');
 
@@ -20,7 +20,7 @@ goog.require('ol.events.Event');
  *    returns false.
  *
  * @constructor
- * @extends {goog.Disposable}
+ * @extends {ol.Disposable}
  */
 ol.events.EventTarget = function() {
 
@@ -33,7 +33,7 @@ ol.events.EventTarget = function() {
   this.listeners_ = {};
 
 };
-goog.inherits(ol.events.EventTarget, goog.Disposable);
+goog.inherits(ol.events.EventTarget, ol.Disposable);
 
 
 /**
@@ -79,7 +79,6 @@ ol.events.EventTarget.prototype.dispatchEvent = function(event) {
  */
 ol.events.EventTarget.prototype.disposeInternal = function() {
   ol.events.unlistenAll(this);
-  goog.base(this, 'disposeInternal');
 };
 
 

src/ol/map.js

@@ -300,12 +300,15 @@ ol.Map = function(options) {
   }
   this.viewport_.appendChild(this.overlayContainerStopEvent_);
 
-  var mapBrowserEventHandler = new ol.MapBrowserEventHandler(this);
+  /**
+   * @private
+   * @type {ol.MapBrowserEventHandler}
+   */
+  this.mapBrowserEventHandler_ = new ol.MapBrowserEventHandler(this);
   for (var key in ol.MapBrowserEvent.EventType) {
-    ol.events.listen(mapBrowserEventHandler, ol.MapBrowserEvent.EventType[key],
+    ol.events.listen(this.mapBrowserEventHandler_, ol.MapBrowserEvent.EventType[key],
         this.handleMapBrowserEvent, this);
   }
-  this.registerDisposable(mapBrowserEventHandler);
 
   /**
    * @private
@@ -353,9 +356,7 @@ ol.Map = function(options) {
    * @type {ol.renderer.Map}
    * @private
    */
-  this.renderer_ =
-      new optionsInternal.rendererConstructor(this.viewport_, this);
-  this.registerDisposable(this.renderer_);
+  this.renderer_ = new optionsInternal.rendererConstructor(this.viewport_, this);
 
   /**
    * @type {function(Event)|undefined}
@@ -577,6 +578,8 @@ ol.Map.prototype.removePreRenderFunction = function(preRenderFunction) {
  * @inheritDoc
  */
 ol.Map.prototype.disposeInternal = function() {
+  this.mapBrowserEventHandler_.dispose();
+  this.renderer_.dispose();
   ol.events.unlisten(this.viewport_, ol.events.EventType.WHEEL,
       this.handleBrowserEvent, this);
   ol.events.unlisten(this.viewport_, ol.events.EventType.MOUSEWHEEL,

src/ol/render/box.js

@@ -2,14 +2,14 @@
 
 goog.provide('ol.render.Box');
 
-goog.require('goog.Disposable');
 goog.require('goog.asserts');
+goog.require('ol.Disposable');
 goog.require('ol.geom.Polygon');
 
 
 /**
  * @constructor
- * @extends {goog.Disposable}
+ * @extends {ol.Disposable}
  * @param {string} className CSS class name.
  */
 ol.render.Box = function(className) {
@@ -47,7 +47,7 @@ ol.render.Box = function(className) {
   this.endPixel_ = null;
 
 };
-goog.inherits(ol.render.Box, goog.Disposable);
+goog.inherits(ol.render.Box, ol.Disposable);
 
 
 /**
@@ -55,7 +55,6 @@ goog.inherits(ol.render.Box, goog.Disposable);
  */
 ol.render.Box.prototype.disposeInternal = function() {
   this.setMap(null);
-  goog.base(this, 'disposeInternal');
 };
 
 

src/ol/renderer/maprenderer.js

@@ -1,11 +1,11 @@
 goog.provide('ol.RendererType');
 goog.provide('ol.renderer.Map');
 
-goog.require('goog.Disposable');
 goog.require('goog.asserts');
 goog.require('goog.functions');
 goog.require('goog.vec.Mat4');
 goog.require('ol');
+goog.require('ol.Disposable');
 goog.require('ol.events');
 goog.require('ol.events.EventType');
 goog.require('ol.extent');
@@ -29,7 +29,7 @@ ol.RendererType = {
 
 /**
  * @constructor
- * @extends {goog.Disposable}
+ * @extends {ol.Disposable}
  * @param {Element} container Container.
  * @param {ol.Map} map Map.
  * @struct
@@ -58,7 +58,7 @@ ol.renderer.Map = function(container, map) {
   this.layerRendererListeners_ = {};
 
 };
-goog.inherits(ol.renderer.Map, goog.Disposable);
+goog.inherits(ol.renderer.Map, ol.Disposable);
 
 
 /**
@@ -96,7 +96,6 @@ ol.renderer.Map.prototype.disposeInternal = function() {
   for (var id in this.layerRenderers_) {
     this.layerRenderers_[id].dispose();
   }
-  goog.base(this, 'disposeInternal');
 };