removes not needed WeakMap struct

src/ol/pointer/pointereventhandler.js

@@ -43,7 +43,6 @@ goog.require('ol.pointer.MsSource');
 goog.require('ol.pointer.NativeSource');
 goog.require('ol.pointer.PointerEvent');
 goog.require('ol.pointer.TouchSource');
-goog.require('ol.structs.WeakMap');
 
 
 
@@ -69,18 +68,6 @@ ol.pointer.PointerEventHandler = function(element) {
   this.pointerMap = new goog.structs.Map();
 
 
-  /**
-   * @const
-   * @type {ol.structs.WeakMap}
-   */
-  this.targets = new ol.structs.WeakMap();
-
-  /**
-   * @const
-   * @type {ol.structs.WeakMap}
-   */
-  this.handledEvents = new ol.structs.WeakMap();
-
   this.eventMap = {};
 
   // Scope objects for native events.
@@ -215,19 +202,11 @@ ol.pointer.PointerEventHandler.prototype.unregister_ = function() {
  * @param {goog.events.BrowserEvent} inEvent Browser event.
  */
 ol.pointer.PointerEventHandler.prototype.eventHandler_ = function(inEvent) {
-  // This is used to prevent multiple dispatch of pointerevents from
-  // platform events. This can happen when two elements in different scopes
-  // are set up to create pointer events, which is relevant to Shadow DOM.
-  if (this.handledEvents['get'](inEvent)) {
-    return;
-  }
-
   var type = inEvent.type;
   var handler = this.eventMap[type];
   if (handler) {
     handler(inEvent);
   }
-  this.handledEvents['set'](inEvent, true);
 };
 
 
@@ -503,7 +482,6 @@ ol.pointer.PointerEventHandler.prototype.makeEvent = function(inType, inEvent) {
   if (inEvent.preventDefault) {
     e.preventDefault = inEvent.preventDefault;
   }
-  this.targets['set'](e, this.targets['get'](inEvent) || inEvent.target);
 
   return e;
 };

src/ol/structs/weakmap.js

@@ -1,101 +0,0 @@
-// Based on https://github.com/Polymer/WeakMap
-
-// Copyright (c) 2013 The Polymer Authors. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-goog.provide('ol.structs.WeakMap');
-
-
-/**
- * @suppress {undefinedVars}
- * @return {boolean} Is `WeakMap` already defined?
- */
-ol.structs.isWeakMapUndefined = function() {
-  return typeof WeakMap === 'undefined';
-};
-
-
-if (ol.structs.isWeakMapUndefined()) {
-  /**
-   * @constructor
-   */
-  ol.structs.WeakMap = function() {
-    this.name = '__st' + (Math.random() * 1e9 >>> 0) +
-        (ol.structs.WeakMap.counter++ + '__');
-  };
-
-
-  /**
-   * @this {ol.structs.WeakMap}
-   * @param {*} key
-   * @param {*} value
-   */
-  ol.structs.WeakMap.prototype['set'] = function(key, value) {
-    var entry = key[this.name];
-    if (entry && entry[0] === key)
-      entry[1] = value;
-    else
-      ol.structs.WeakMap.defineProperty(key, this.name,
-          {value: [key, value], writable: true});
-  };
-
-
-  /**
-   * @this {ol.structs.WeakMap}
-   * @param {*} key
-   * @return {*}
-   */
-  ol.structs.WeakMap.prototype['get'] = function(key) {
-    var entry;
-    return (entry = key[this.name]) && entry[0] === key ?
-        entry[1] : undefined;
-  };
-
-
-  /**
-   * @this {ol.structs.WeakMap}
-   * @param {*} key
-   */
-  ol.structs.WeakMap.prototype['delete'] = function(key) {
-    this['set'](key, undefined);
-  };
-} else {
-  ol.structs.WeakMap = WeakMap;
-}
-
-
-/**
- * @type {function(...)}
- */
-ol.structs.WeakMap.defineProperty = Object.defineProperty;
-
-
-/**
- * @type {number}
- */
-ol.structs.WeakMap.counter = Date.now() % 1e9;