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- /*
- * Copyright (C) 2008 Apple Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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.
- */
-
- WebInspector.Object = function() {
- }
-
- WebInspector.Object.prototype = {
- addEventListener: function(eventType, listener, thisObject) {
- if (!("_listeners" in this))
- this._listeners = {};
- if (!(eventType in this._listeners))
- this._listeners[eventType] = [];
- this._listeners[eventType].push({ thisObject: thisObject, listener: listener });
- },
-
- removeEventListener: function(eventType, listener, thisObject) {
- if (!("_listeners" in this) || !(eventType in this._listeners))
- return;
- var listeners = this._listeners[eventType];
- for (var i = 0; i < listeners.length; ++i) {
- if (listener && listeners[i].listener === listener && listeners[i].thisObject === thisObject)
- listeners.splice(i, 1);
- else if (!listener && thisObject && listeners[i].thisObject === thisObject)
- listeners.splice(i, 1);
- }
-
- if (!listeners.length)
- delete this._listeners[eventType];
- },
-
- dispatchEventToListeners: function(eventType) {
- if (!("_listeners" in this) || !(eventType in this._listeners))
- return;
-
- var stoppedPropagation = false;
-
- function stopPropagation()
- {
- stoppedPropagation = true;
- }
-
- function preventDefault()
- {
- this.defaultPrevented = true;
- }
-
- var event = {target: this, type: eventType, defaultPrevented: false};
- event.stopPropagation = stopPropagation.bind(event);
- event.preventDefault = preventDefault.bind(event);
-
- var listeners = this._listeners[eventType];
- for (var i = 0; i < listeners.length; ++i) {
- listeners[i].listener.call(listeners[i].thisObject, event);
- if (stoppedPropagation)
- break;
- }
-
- return event.defaultPrevented;
- }
- }
-