private final String selector;
private JavaScriptObject rules = null;
- public CSSRule(String selector) {
+ /**
+ *
+ * @param selector
+ * the CSS selector to search for in the stylesheets
+ * @param deep
+ * should the search follow any @import statements?
+ */
+ public CSSRule(final String selector, final boolean deep) {
this.selector = selector;
- fetchRule(selector);
+ fetchRule(selector, deep);
}
// TODO how to find the right LINK-element? We should probably give the
// stylesheet a name.
- private native void fetchRule(final String selector)
- /*-{
- this.@com.vaadin.terminal.gwt.client.CSSRule::rules = @com.vaadin.terminal.gwt.client.CSSRule::searchForRule(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;)($doc.styleSheets[1], selector);
+ private native void fetchRule(final String selector, final boolean deep) /*-{
+ var sheets = $doc.styleSheets;
+ for(var i = 0; i < sheets.length; i++) {
+ var sheet = sheets[i];
+ if(sheet.href && sheet.href.indexOf("VAADIN/themes")>-1) {
+ this.@com.vaadin.terminal.gwt.client.CSSRule::rules = @com.vaadin.terminal.gwt.client.CSSRule::searchForRule(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;Z)(sheet, selector, deep);
+ return;
+ }
+ }
+ this.@com.vaadin.terminal.gwt.client.CSSRule::rules = [];
}-*/;
/*
* 'rules' array. The array is reverse ordered (last one found is first).
*/
private static native JavaScriptObject searchForRule(
- JavaScriptObject sheet, final String selector)
- /*-{
- if(!$doc.styleSheets)
+ final JavaScriptObject sheet, final String selector,
+ final boolean deep) /*-{
+ if(!$doc.styleSheets)
return null;
-
- selector = selector.toLowerCase();
-
- var allMatches = [];
-
- var theRules = new Array();
- if (sheet.cssRules)
+
+ selector = selector.toLowerCase();
+
+ var allMatches = [];
+
+ // IE handles imported sheet differently
+ if(deep && sheet.imports.length > 0) {
+ for(var i=0; i < sheet.imports.length; i++) {
+ var imports = @com.vaadin.terminal.gwt.client.CSSRule::searchForRule(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;Z)(sheet.imports[i], selector, deep);
+ allMatches.concat(imports);
+ }
+ }
+
+ var theRules = new Array();
+ if (sheet.cssRules)
theRules = sheet.cssRules
- else if (sheet.rules)
+ else if (sheet.rules)
theRules = sheet.rules
-
+
var j = theRules.length;
for(var i=0; i<j; i++) {
- var r = theRules[i];
- if(r.type == 3) {
- allMatches.unshift(@com.vaadin.terminal.gwt.client.CSSRule::searchForRule(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;)(r.styleSheet, selector));
- } else if(r.type == 1) {
- var selectors = r.selectorText.toLowerCase().split(",");
- var n = selectors.length;
- for(var m=0; m<n; m++) {
- if(selectors[m].replace(/^\s+|\s+$/g, "") == selector) {
- allMatches.unshift(r);
- break; // No need to loop other selectors for this rule
- }
- }
- }
+ var r = theRules[i];
+ if(r.type == 1 || sheet.imports) {
+ var selectors = r.selectorText.toLowerCase().split(",");
+ var n = selectors.length;
+ for(var m=0; m<n; m++) {
+ if(selectors[m].replace(/^\s+|\s+$/g, "") == selector) {
+ allMatches.unshift(r);
+ break; // No need to loop other selectors for this rule
+ }
}
-
+ } else if(deep && r.type == 3) {
+ // Search @import stylesheet
+ var imports = @com.vaadin.terminal.gwt.client.CSSRule::searchForRule(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;Z)(r.styleSheet, selector, deep);
+ allMatches.concat(imports);
+ }
+ }
+
return allMatches;
}-*/;
* Returns a specific property value from this CSS rule.
*
* @param propertyName
- * @return
+ * camelCase CSS property name
+ * @return the value of the property as a String
*/
- public native String getPropertyValue(final String propertyName)
- /*-{
- for(var i=0; i<this.@com.vaadin.terminal.gwt.client.CSSRule::rules.length; i++){
- var value = this.@com.vaadin.terminal.gwt.client.CSSRule::rules[i].style[propertyName];
- if(value)
- return value;
+ public native String getPropertyValue(final String propertyName) /*-{
+ var j = this.@com.vaadin.terminal.gwt.client.CSSRule::rules.length;
+ for(var i=0; i<j; i++) {
+ var value = this.@com.vaadin.terminal.gwt.client.CSSRule::rules[i].style[propertyName];
+ if(value)
+ return value;
}
return null;
}-*/;