private void init() {
Map<String, Element> containers = contentContainerFactory.list();
for (String containerName : containers.keySet()) {
List<String> containerStyles = new ArrayList<String>();
styles.put(containerName, containerStyles);
Element element = containers.get(containerName);
List<JavaScriptRegExp> matchers = new ArrayList<JavaScriptRegExp>();
if (element.hasAttribute("id")) {
matchers.add(
JavaScriptRegExp.create(
"^\\s*#" + element.getAttribute("id") + "\\s+>?\\s*([^\\s,]+)"));
}
String[] cssClasseNames = element.getClassName().trim().split("\\s+");
for (String cssClassName : cssClasseNames) {
matchers.add(JavaScriptRegExp.create("^\\s*." + cssClassName + "\\s+>?\\s*([^\\s,]+)"));
}
JsArray<StyleSheet> styleSheets = StyleSheet.getAll();
for (int i = 0; i < styleSheets.length(); i++) {
StyleSheet styleSheet = styleSheets.get(i);
if (styleSheet == null) continue;
// In Chrome, if stylesheet originates from a different domain,
// ss.cssRules simply won't exist. I believe the same is true for IE, but
// I haven't tested it.
//
// In Firefox, if stylesheet originates from a different domain, trying
// to access ss.cssRules will throw a SecurityError. Hence, we must use
// try/catch to detect this condition in Firefox.
JsArray<CSSStyleRule> cssRules;
try {
cssRules = styleSheet.cssRules();
} catch (JavaScriptException e) {
cssRules = null;
}
if (cssRules == null) continue;
for (int j = 0; j < cssRules.length(); j++) {
CSSStyleRule rule = cssRules.get(j);
if (rule == null) continue;
if (rule.selectorText() == null) continue;
String[] selectors = rule.selectorText().split(",");
for (String selector : selectors) {
for (JavaScriptRegExp matcher : matchers) {
JsArrayString matches = matcher.match(selector);
if (matches != null
&& matches.length() == 2
&& !containerStyles.contains(matches.get(1))) {
containerStyles.add(matches.get(1));
}
}
}
}
}
}
}
/** Collect locations from template */
private void scanForLocations(Element elem) {
if (elem.hasAttribute("location")) {
final String location = elem.getAttribute("location");
locationToElement.put(location, elem);
elem.setInnerHTML("");
} else {
final int len = DOM.getChildCount(elem);
for (int i = 0; i < len; i++) {
scanForLocations(DOM.getChild(elem, i));
}
}
}
public String getAttribute(String key) {
NodeList<Element> elements = rootElement.getElementsByTagName("attributes");
assert elements.getLength() > 0;
Element attributesNode = elements.getItem(0);
NodeList<Node> childNodes = attributesNode.getChildNodes();
for (int i = 0; i < childNodes.getLength(); i++) {
Element node = (Element) childNodes.getItem(i);
if (node.hasAttribute("name") && node.getAttribute("name").equals(key)) {
return node.getAttribute("value");
}
}
throw new RuntimeException("TaggedEntity does not have attribute '" + key + "'");
}
public boolean hasAttribute(String key) {
NodeList<Element> elements = rootElement.getElementsByTagName("attributes");
assert elements.getLength() > 0;
Element attributesNode = elements.getItem(0);
NodeList<Node> childNodes = attributesNode.getChildNodes();
for (int i = 0; i < childNodes.getLength(); i++) {
Element node = (Element) childNodes.getItem(i);
if (node.hasAttribute("name") && node.getAttribute("name").equals(key)) {
return true;
}
}
return false;
}
/**
* Adds a new key-value attribute pair or changes an existing one.
*
* @param key
* @param value
*/
public void setAttribute(String key, String value) {
NodeList<Element> elements = rootElement.getElementsByTagName("attributes");
assert elements.getLength() > 0;
Element attributesNode = elements.getItem(0);
NodeList<Node> childNodes = attributesNode.getChildNodes();
for (int i = 0; i < childNodes.getLength(); i++) {
Element node = (Element) childNodes.getItem(i);
if (node.hasAttribute("name") && node.getAttribute("name").equals(key)) {
node.setAttribute("value", value);
return;
}
}
/* if you get here, the rootElement wasn't found */
Element element = JSFunctions.createPlainElement("attribute");
element.setAttribute("name", key);
element.setAttribute("value", value);
attributesNode.insertAfter(element, attributesNode.getLastChild());
}
