1 /****************************************************************************
  2  Copyright (c) 2010-2012 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 /**
 26  * UI Helper
 27  * @type {Object}
 28  */
 29 ccui.helper = {
 30 	/**
 31 	 * Finds a widget whose tag equals to param tag from root widget.
 32 	 * @param {ccui.Widget} root
 33 	 * @param {number} tag
 34 	 * @returns {ccui.Widget}
 35 	 */
 36 	seekWidgetByTag: function (root, tag) {
 37 	    if (!root) {
 38 	        return null;
 39 	    }
 40 	    if (root.getTag() == tag) {
 41 	        return root;
 42 	    }
 43 	    var arrayRootChildren = root.getChildren();
 44 	    var length = arrayRootChildren.length;
 45 	    for (var i = 0; i < length; i++) {
 46 	        var child = arrayRootChildren[i];
 47 	        var res = this.seekWidgetByTag(child, tag);
 48 	        if (res != null) {
 49 	            return res;
 50 	        }
 51 	    }
 52 	    return null;
 53 	},
 54 
 55 	/**
 56 	 * Finds a widget whose name equals to param name from root widget.
 57 	 * @param {ccui.Widget} root
 58 	 * @param {String} name
 59 	 * @returns {ccui.Widget}
 60 	 */
 61 	seekWidgetByName: function (root, name) {
 62 	    if (!root) {
 63 	        return null;
 64 	    }
 65 	    if (root.getName() == name) {
 66 	        return root;
 67 	    }
 68 	    var arrayRootChildren = root.getChildren();
 69 	    var length = arrayRootChildren.length;
 70 	    for (var i = 0; i < length; i++) {
 71 	        var child = arrayRootChildren[i];
 72 	        var res = this.seekWidgetByName(child, name);
 73 	        if (res != null) {
 74 	            return res;
 75 	        }
 76 	    }
 77 	    return null;
 78 	},
 79 
 80 	/**
 81 	 * Finds a widget whose name equals to param name from root widget.
 82 	 * RelativeLayout will call this method to find the widget witch is needed.
 83 	 * @param {ccui.Widget} root
 84 	 * @param {String} name
 85 	 * @returns {ccui.Widget}
 86 	 */
 87 	seekWidgetByRelativeName: function (root, name) {
 88 	    if (!root) {
 89 	        return null;
 90 	    }
 91 	    var arrayRootChildren = root.getChildren();
 92 	    var length = arrayRootChildren.length;
 93 	    for (var i = 0; i < length; i++) {
 94 	        var child = arrayRootChildren[i];
 95 	        var layoutParameter = child.getLayoutParameter(ccui.LayoutParameter.RELATIVE);
 96 	        if (layoutParameter && layoutParameter.getRelativeName() == name) {
 97 	            return child;
 98 	        }
 99 	    }
100 	    return null;
101 	},
102 
103 	/*temp action*/
104 	seekActionWidgetByActionTag: function (root, tag) {
105 	    if (!root) {
106 	        return null;
107 	    }
108 	    if (root.getActionTag() == tag) {
109 	        return root;
110 	    }
111 	    var arrayRootChildren = root.getChildren();
112 	    for (var i = 0; i < arrayRootChildren.length; i++) {
113 	        var child = arrayRootChildren[i];
114 	        var res = this.seekActionWidgetByActionTag(child, tag);
115 	        if (res != null) {
116 	            return res;
117 	        }
118 	    }
119 	    return null;
120 	}
121 
122 };
123 ccui.helper;
124