1 /**************************************************************************** 2 Copyright (c) 2013 cocos2d-x.org 3 4 http://www.cocos2d-x.org 5 6 Permission is hereby granted, free of charge, to any person obtaining a copy 7 of this software and associated documentation files (the "Software"), to deal 8 in the Software without restriction, including without limitation the rights 9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 copies of the Software, and to permit persons to whom the Software is 11 furnished to do so, subject to the following conditions: 12 13 The above copyright notice and this permission notice shall be included in 14 all copies or substantial portions of the Software. 15 16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 THE SOFTWARE. 23 ****************************************************************************/ 24 25 cc.ComponentContainer = cc.Class.extend({ 26 _components:null, 27 _owner:null, 28 29 ctor:function(node){ 30 this._components = null; 31 this._owner = node; 32 }, 33 34 getComponent:function(name){ 35 if(!name) 36 throw "cc.ComponentContainer.getComponent(): name should be non-null"; 37 name = name.trim(); 38 return this._components[name]; 39 }, 40 41 add:function(component){ 42 if(!component) 43 throw "cc.ComponentContainer.add(): component should be non-null"; 44 if(component.getOwner()){ 45 cc.log("cc.ComponentContainer.add(): Component already added. It can't be added again"); 46 return false; 47 } 48 49 if(this._components == null){ 50 this._components = {}; 51 this._owner.scheduleUpdate(); 52 } 53 var oldComponent = this._components[component.getName()]; 54 if(oldComponent){ 55 cc.log("cc.ComponentContainer.add(): Component already added. It can't be added again"); 56 return false; 57 } 58 component.setOwner(this._owner); 59 this._components[component.getName()] = component; 60 component.onEnter(); 61 return true; 62 }, 63 64 /** 65 * 66 * @param {String|cc.Component} name 67 * @returns {boolean} 68 */ 69 remove:function(name){ 70 if(!name) 71 throw "cc.ComponentContainer.remove(): name should be non-null"; 72 if(!this._components) 73 return false; 74 if(name instanceof cc.Component){ 75 return this._removeByComponent(name); 76 }else{ 77 name = name.trim(); 78 return this._removeByComponent(this._components[name]); 79 } 80 }, 81 82 _removeByComponent:function(component){ 83 if(component) 84 return false; 85 component.onExit(); 86 component.setOwner(null); 87 delete this._components[component.getName()]; 88 return true; 89 }, 90 91 removeAll:function(){ 92 if(!this._components) 93 return; 94 95 var locComponents = this._components; 96 for(var selKey in locComponents){ 97 var selComponent = locComponents[selKey]; 98 selComponent.onExit(); 99 selComponent.setOwner(null); 100 delete locComponents[selKey]; 101 } 102 this._owner.unscheduleUpdate(); 103 this._components = null; 104 }, 105 106 _alloc:function(){ 107 this._components = {}; 108 }, 109 110 visit:function(delta){ 111 if(!this._components) 112 return; 113 114 var locComponents = this._components; 115 for(var selKey in locComponents){ 116 locComponents[selKey].update(delta); 117 } 118 }, 119 120 isEmpty:function(){ 121 if(!this._components) 122 return true; 123 124 for(var selkey in this._components){ 125 return false; 126 } 127 return true; 128 } 129 }); 130 131 132