/*
* Ext GWT 2.2.4 - Ext for GWT
* Copyright(c) 2007-2010, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.extjs.gxt.ui.client.util;
import com.extjs.gxt.ui.client.core.XDOM;
import com.google.gwt.dom.client.Node;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
/**
* Provides functions for removing and adding stylesheets.
*/
public class CSS {
/**
* Removes a style or link tag by id.
*
* @param id the id of the tag
*/
public static void removeStyleSheet(String id) {
Element elem = XDOM.getElementById(id);
if (elem != null) {
Element p = DOM.getParent(elem);
DOM.setElementProperty(p, "disabled", "disabled");
DOM.removeChild(p, elem);
}
}
/**
* Adds a stylesheet to the document.
*
* @param id the id
* @param url the stylesheet url
*/
public static void addStyleSheet(String id, String url) {
Element link = DOM.createElement("link");
link.setPropertyString("rel", "stylesheet");
link.setPropertyString("type", "text/css");
link.setPropertyString("id", id);
link.setPropertyString("href", url);
link.setPropertyString("disabled", "");
Element elem = XDOM.getHead();
Element all = null;
for (int i = 0; i < elem.getChildNodes().getLength(); i++) {
Node node = elem.getChildNodes().getItem(i).cast();
if (node instanceof Element) {
Element child = (Element) node;
String tag = child.getTagName();
if (tag != null && child.getTagName().equalsIgnoreCase("link")) {
String href = child.getAttribute("href");
if (href.length() != 0 && href.indexOf("gxt-all.css") != -1) {
all = child;
break;
}
}
}
}
if (all != null) {
int idx = DOM.getChildIndex(elem, all);
DOM.insertChild(elem, link, idx + 1);
} else {
DOM.appendChild(elem, link);
}
}
/**
* Adds a rules string in a <code><dstyle><d/style></code> element.
*
* @param style the <code><dstyle><d/style></code> element
* @param cssStr the rules string
*/
native public static void setRules(Element style, String cssStr) /*-{
style.setAttribute("type", "text/css");
if(style.styleSheet){// IE
style.styleSheet.cssText = cssStr;
} else {// w3c
while (style.firstChild) {
style.removeChild(style.firstChild);
}
var cssText = $doc.createTextNode(cssStr);
style.appendChild(cssText);
}
}-*/;
}