+++ /dev/null
-/*\r
- * Ext JS Library 2.2.1\r
- * Copyright(c) 2006-2009, Ext JS, LLC.\r
- * licensing@extjs.com\r
- * \r
- * http://extjs.com/license\r
- */\r
-\r
-/**\r
- * @class Ext.util.CSS\r
- * Utility class for manipulating CSS rules\r
- * @singleton\r
- */\r
-Ext.util.CSS = function(){\r
- var rules = null;\r
- var doc = document;\r
-\r
- var camelRe = /(-[a-z])/gi;\r
- var camelFn = function(m, a){ return a.charAt(1).toUpperCase(); };\r
-\r
- return {\r
- /**\r
- * Creates a stylesheet from a text blob of rules.\r
- * These rules will be wrapped in a STYLE tag and appended to the HEAD of the document.\r
- * @param {String} cssText The text containing the css rules\r
- * @param {String} id An id to add to the stylesheet for later removal\r
- * @return {StyleSheet}\r
- */\r
- createStyleSheet : function(cssText, id){\r
- var ss;\r
- var head = doc.getElementsByTagName("head")[0];\r
- var rules = doc.createElement("style");\r
- rules.setAttribute("type", "text/css");\r
- if(id){\r
- rules.setAttribute("id", id);\r
- }\r
- if(Ext.isIE){\r
- head.appendChild(rules);\r
- ss = rules.styleSheet;\r
- ss.cssText = cssText;\r
- }else{\r
- try{\r
- rules.appendChild(doc.createTextNode(cssText));\r
- }catch(e){\r
- rules.cssText = cssText;\r
- }\r
- head.appendChild(rules);\r
- ss = rules.styleSheet ? rules.styleSheet : (rules.sheet || doc.styleSheets[doc.styleSheets.length-1]);\r
- }\r
- this.cacheStyleSheet(ss);\r
- return ss;\r
- },\r
-\r
- /**\r
- * Removes a style or link tag by id\r
- * @param {String} id The id of the tag\r
- */\r
- removeStyleSheet : function(id){\r
- var existing = doc.getElementById(id);\r
- if(existing){\r
- existing.parentNode.removeChild(existing);\r
- }\r
- },\r
-\r
- /**\r
- * Dynamically swaps an existing stylesheet reference for a new one\r
- * @param {String} id The id of an existing link tag to remove\r
- * @param {String} url The href of the new stylesheet to include\r
- */\r
- swapStyleSheet : function(id, url){\r
- this.removeStyleSheet(id);\r
- var ss = doc.createElement("link");\r
- ss.setAttribute("rel", "stylesheet");\r
- ss.setAttribute("type", "text/css");\r
- ss.setAttribute("id", id);\r
- ss.setAttribute("href", url);\r
- doc.getElementsByTagName("head")[0].appendChild(ss);\r
- },\r
- \r
- /**\r
- * Refresh the rule cache if you have dynamically added stylesheets\r
- * @return {Object} An object (hash) of rules indexed by selector\r
- */\r
- refreshCache : function(){\r
- return this.getRules(true);\r
- },\r
-\r
- // private\r
- cacheStyleSheet : function(ss){\r
- if(!rules){\r
- rules = {};\r
- }\r
- try{// try catch for cross domain access issue\r
- var ssRules = ss.cssRules || ss.rules;\r
- for(var j = ssRules.length-1; j >= 0; --j){\r
- rules[ssRules[j].selectorText] = ssRules[j];\r
- }\r
- }catch(e){}\r
- },\r
- \r
- /**\r
- * Gets all css rules for the document\r
- * @param {Boolean} refreshCache true to refresh the internal cache\r
- * @return {Object} An object (hash) of rules indexed by selector\r
- */\r
- getRules : function(refreshCache){\r
- if(rules == null || refreshCache){\r
- rules = {};\r
- var ds = doc.styleSheets;\r
- for(var i =0, len = ds.length; i < len; i++){\r
- try{\r
- this.cacheStyleSheet(ds[i]);\r
- }catch(e){} \r
- }\r
- }\r
- return rules;\r
- },\r
- \r
- /**\r
- * Gets an an individual CSS rule by selector(s)\r
- * @param {String/Array} selector The CSS selector or an array of selectors to try. The first selector that is found is returned.\r
- * @param {Boolean} refreshCache true to refresh the internal cache if you have recently updated any rules or added styles dynamically\r
- * @return {CSSRule} The CSS rule or null if one is not found\r
- */\r
- getRule : function(selector, refreshCache){\r
- var rs = this.getRules(refreshCache);\r
- if(!Ext.isArray(selector)){\r
- return rs[selector];\r
- }\r
- for(var i = 0; i < selector.length; i++){\r
- if(rs[selector[i]]){\r
- return rs[selector[i]];\r
- }\r
- }\r
- return null;\r
- },\r
- \r
- \r
- /**\r
- * Updates a rule property\r
- * @param {String/Array} selector If it's an array it tries each selector until it finds one. Stops immediately once one is found.\r
- * @param {String} property The css property\r
- * @param {String} value The new value for the property\r
- * @return {Boolean} true If a rule was found and updated\r
- */\r
- updateRule : function(selector, property, value){\r
- if(!Ext.isArray(selector)){\r
- var rule = this.getRule(selector);\r
- if(rule){\r
- rule.style[property.replace(camelRe, camelFn)] = value;\r
- return true;\r
- }\r
- }else{\r
- for(var i = 0; i < selector.length; i++){\r
- if(this.updateRule(selector[i], property, value)){\r
- return true;\r
- }\r
- }\r
- }\r
- return false;\r
- }\r
- }; \r
-}();
\ No newline at end of file
git.ithinksw.org / extjs.git / blobdiff