| /* |
| * 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. |
| */ |
| |
| /** |
| * @constructor |
| * @implements {WebInspector.EventTarget} |
| */ |
| WebInspector.Object = function() { |
| } |
| |
| WebInspector.Object.prototype = { |
| /** |
| * @param {string} eventType |
| * @param {function(WebInspector.Event)} listener |
| * @param {Object=} thisObject |
| */ |
| addEventListener: function(eventType, listener, thisObject) |
| { |
| if (!listener) |
| console.assert(false); |
| |
| if (!this._listeners) |
| this._listeners = {}; |
| if (!this._listeners[eventType]) |
| this._listeners[eventType] = []; |
| this._listeners[eventType].push({ thisObject: thisObject, listener: listener }); |
| }, |
| |
| /** |
| * @param {string} eventType |
| * @param {function(WebInspector.Event)} listener |
| * @param {Object=} thisObject |
| */ |
| removeEventListener: function(eventType, listener, thisObject) |
| { |
| console.assert(listener); |
| |
| if (!this._listeners || !this._listeners[eventType]) |
| 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]; |
| }, |
| |
| removeAllListeners: function() |
| { |
| delete this._listeners; |
| }, |
| |
| /** |
| * @param {string} eventType |
| * @return {boolean} |
| */ |
| hasEventListeners: function(eventType) |
| { |
| if (!this._listeners || !this._listeners[eventType]) |
| return false; |
| return true; |
| }, |
| |
| /** |
| * @param {string} eventType |
| * @param {*=} eventData |
| * @return {boolean} |
| */ |
| dispatchEventToListeners: function(eventType, eventData) |
| { |
| if (!this._listeners || !this._listeners[eventType]) |
| return false; |
| |
| var event = new WebInspector.Event(this, eventType, eventData); |
| var listeners = this._listeners[eventType].slice(0); |
| for (var i = 0; i < listeners.length; ++i) { |
| listeners[i].listener.call(listeners[i].thisObject, event); |
| if (event._stoppedPropagation) |
| break; |
| } |
| |
| return event.defaultPrevented; |
| } |
| } |
| |
| /** |
| * @constructor |
| * @param {WebInspector.EventTarget} target |
| * @param {string} type |
| * @param {*=} data |
| */ |
| WebInspector.Event = function(target, type, data) |
| { |
| this.target = target; |
| this.type = type; |
| this.data = data; |
| this.defaultPrevented = false; |
| this._stoppedPropagation = false; |
| } |
| |
| WebInspector.Event.prototype = { |
| stopPropagation: function() |
| { |
| this._stoppedPropagation = true; |
| }, |
| |
| preventDefault: function() |
| { |
| this.defaultPrevented = true; |
| }, |
| |
| /** |
| * @param {boolean=} preventDefault |
| */ |
| consume: function(preventDefault) |
| { |
| this.stopPropagation(); |
| if (preventDefault) |
| this.preventDefault(); |
| } |
| } |
| |
| /** |
| * @interface |
| */ |
| WebInspector.EventTarget = function() |
| { |
| } |
| |
| WebInspector.EventTarget.prototype = { |
| /** |
| * @param {string} eventType |
| * @param {function(WebInspector.Event)} listener |
| * @param {Object=} thisObject |
| */ |
| addEventListener: function(eventType, listener, thisObject) { }, |
| |
| /** |
| * @param {string} eventType |
| * @param {function(WebInspector.Event)} listener |
| * @param {Object=} thisObject |
| */ |
| removeEventListener: function(eventType, listener, thisObject) { }, |
| |
| removeAllListeners: function() { }, |
| |
| /** |
| * @param {string} eventType |
| * @return {boolean} |
| */ |
| hasEventListeners: function(eventType) { }, |
| |
| /** |
| * @param {string} eventType |
| * @param {*=} eventData |
| * @return {boolean} |
| */ |
| dispatchEventToListeners: function(eventType, eventData) { }, |
| } |
| |
| WebInspector.notifications = new WebInspector.Object(); |