* A bunch of utility methods for GQuery.
*/
public class JsUtils {
-
- private static JsUtilsImpl utilsImpl = GWT.create(JsUtilsImpl.class);
-
+
+ /**
+ * A Function which wraps a javascript function.
+ */
public static class JsFunction extends Function {
private JavaScriptObject jso = null;
+
public JsFunction(JavaScriptObject f) {
if (JsUtils.isFunction(f)) {
jso = f;
}
}
+
private native void exec(JavaScriptObject f, Object data) /*-{
- f(data);
+ f(data);
}-*/;
+
public void f() {
if (jso != null) {
exec(jso, getData()[0]);
}
}
}
-
+
public static class JsUtilsImpl {
- public native Element parseXML(String xml) /*-{
- return new DOMParser().parseFromString(xml, "text/xml").documentElement;
- }-*/;
-
public native Properties parseJSON(String json) /*-{
- return $wnd.JSON.parse(json);
+ return $wnd.JSON.parse(json);
}-*/;
-
- public native String XML2String(JavaScriptObject o) /*-{
- return (new XMLSerializer()).serializeToString(o);
+
+ public native Element parseXML(String xml) /*-{
+ return new DOMParser().parseFromString(xml, "text/xml").documentElement;
}-*/;
-
+
public String text(Element e) {
return e.getInnerText();
}
-
+
public JsArray<Element> unique(JsArray<Element> a) {
JsArray<Element> ret = JavaScriptObject.createArray().cast();
JsCache cache = JsCache.create();
cache.put(id, 1);
ret.push(e);
}
- }
+ }
return ret;
}
+
+ public native String XML2String(JavaScriptObject o) /*-{
+ return (new XMLSerializer()).serializeToString(o);
+ }-*/;
}
- public static class JsUtilsImplIE6 extends JsUtilsImpl {
- @Override
- public native Element parseXML(String xml) /*-{
- var d = new ActiveXObject("Microsoft.XmlDom");
- d.loadXML(xml);
- return d.documentElement;
+ public static class JsUtilsImplIE6 extends JsUtilsImpl {
+ public static final native Properties evalImpl(String properties) /*-{
+ return eval(properties);
}-*/;
-
+
@Override
public Properties parseJSON(String json) {
// No checks to the passed string so json should be
// a well-formed json string.
return evalImpl("(" + json + ")");
}
-
- public static final native Properties evalImpl(String properties) /*-{
- return eval(properties);
- }-*/;
-
+
@Override
- public native String XML2String(JavaScriptObject o) /*-{
- return o.xml;
+ public native Element parseXML(String xml) /*-{
+ var d = new ActiveXObject("Microsoft.XmlDom");
+ d.loadXML(xml);
+ return d.documentElement;
}-*/;
-
+
+ @Override
+ public String text(Element e) {
+ return isXML(e) ? xmlText(e) : super.text(e);
+ }
+
@Override
public JsArray<Element> unique(JsArray<Element> a) {
// in IE6 XML elements does not support adding hashId to the object
}
return super.unique(a);
}
-
+
@Override
- public String text(Element e) {
- return isXML(e) ? xmlText(e) : super.text(e);
- }
-
+ public native String XML2String(JavaScriptObject o) /*-{
+ return o.xml;
+ }-*/;
+
private native String xmlText(Element e) /*-{
- return e.text;
+ return e.text;
}-*/;
}
+ private static JsUtilsImpl utilsImpl = GWT.create(JsUtilsImpl.class);
+
/**
* Camelize style property names. for instance: font-name -> fontName
*/
public static native String camelize(String s)/*-{
- return s.replace(/\-(\w)/g, function(all, letter) {
- return letter.toUpperCase();
- });
+ return s.replace(/\-(\w)/g, function(all, letter) {
+ return letter.toUpperCase();
+ });
}-*/;
/**
- * Merge the oldNodes list into the newNodes one.
- * If oldNodes is null, a new list will be created and returned.
- * If oldNodes is not null, a new list will be created depending on
- * the create flag.
+ * Merge the oldNodes list into the newNodes one. If oldNodes is null, a new
+ * list will be created and returned. If oldNodes is not null, a new list will
+ * be created depending on the create flag.
*/
- public static NodeList<Element> copyNodeList(NodeList<Element> oldNodes, NodeList<Element> newNodes, boolean create) {
- NodeList<Element> ret = oldNodes == null || create ? JsNodeArray.create() : oldNodes;
+ public static NodeList<Element> copyNodeList(NodeList<Element> oldNodes,
+ NodeList<Element> newNodes, boolean create) {
+ NodeList<Element> ret = oldNodes == null || create ? JsNodeArray.create()
+ : oldNodes;
JsCache idlist = JsCache.create();
for (int i = 0; oldNodes != null && i < oldNodes.getLength(); i++) {
Element e = oldNodes.getItem(i);
idlist.put(e.hashCode(), 1);
if (create) {
- ret.<JsNodeArray>cast().addNode(e, i);
+ ret.<JsNodeArray> cast().addNode(e, i);
}
}
for (int i = 0, l = newNodes.getLength(), j = ret.getLength(); i < l; i++) {
Element e = newNodes.getItem(i);
if (!idlist.exists(e.hashCode())) {
- ret.<JsNodeArray>cast().addNode(newNodes.getItem(i), j++);
+ ret.<JsNodeArray> cast().addNode(newNodes.getItem(i), j++);
}
}
return ret;
* Compare two numbers using javascript equality.
*/
public static native boolean eq(double s1, double s2) /*-{
- return s1 == s2;
+ return s1 == s2;
}-*/;
-
+
/**
* Compare two objects using javascript equality.
*/
public static native boolean eq(Object s1, Object s2) /*-{
- return s1 == s2;
+ return s1 == s2;
}-*/;
/**
- * Hyphenize style property names. for instance: fontName -> font-name
+ * Returns the owner document element of an element.
*/
- public static native String hyphenize(String name) /*-{
- return name.replace(/([A-Z])/g, "-$1" ).toLowerCase();
- }-*/;
-
- /**
- * Load an external javascript library.
- * The inserted script replaces the element with the
- * given id in the document.
- */
- public static void loadScript(String url, String id) {
- GQuery gs = GQuery.$(DOM.createElement("script"));
- GQuery gp = GQuery.$("#" + id).parent();
- if (gp.size() != 1) {
- gp = GQuery.$(GQuery.document.getBody());
- }
- GQuery.$("#" + id).remove();
- gp.append(gs.attr("src", url).attr("type", "text/javascript").attr("id", id));
+ public static Document getOwnerDocument(Node n) {
+ return n == null ? null : n.getNodeType() == Node.DOCUMENT_NODE
+ ? n.<Document> cast() : n.getOwnerDocument();
}
/**
- * Return the element which is truth in the double scope.
- */
- public static native double or(double s1, double s2) /*-{
- return s1 || s2;
- }-*/;
-
- /**
- * Return the element which is truth in the javascript scope.
+ * Check if an object have already a property with name <code>name</code>
+ * defined.
*/
- public static native <T> T or(T s1, T s2) /*-{
- return s1 || s2;
+ public static native boolean hasProperty(JavaScriptObject o, String name)/*-{
+ return name in o;
}-*/;
-
+
/**
- * Check if a number is true in the javascript scope.
+ * Hyphenize style property names. for instance: fontName -> font-name
*/
- public static native boolean truth(double a) /*-{
- return a ? true : false;
+ public static native String hyphenize(String name) /*-{
+ return name.replace(/([A-Z])/g, "-$1").toLowerCase();
}-*/;
-
/**
- * Check if an object is true in the javascript scope.
+ * Check is a javascript object can be used as an array
*/
- public static native boolean truth(Object a) /*-{
- return a ? true : false;
+ public static native boolean isArray(JavaScriptObject o) /*-{
+ return Object.prototype.toString.call(o) == '[object Array]'
+ || typeof o.length == 'number';
}-*/;
-
-
+
/**
- * Check if an object have already a property with name <code>name</code> defined.
+ * Return whether the event was prevented
*/
- public static native boolean hasProperty(JavaScriptObject o, String name)/*-{
- return name in o;
+ public static native boolean isDefaultPrevented(JavaScriptObject e)/*-{
+ return e.defaultPrevented || e.returnValue === false || e.getPreventDefault
+ && e.getPreventDefault() ? true : false;
}-*/;
-
- /**
- * Check is a javascript object is a Window
- */
- public static boolean isWindow(JavaScriptObject o) {
- return hasProperty(o, "alert");
- }
+
/**
- * Check is a javascript object can be cast to an Element
+ * Check is a javascript object can be cast to an Element
*/
public static boolean isElement(JavaScriptObject o) {
return hasProperty(o, "nodeName");
}
-
+
/**
- * Check is a javascript object can be cast to an Event
+ * Check is a javascript object can be cast to an Event
*/
public static boolean isEvent(JavaScriptObject o) {
return hasProperty(o, "currentTarget");
}
-
+
/**
* Check is a javascript object is a function
*/
public static native boolean isFunction(JavaScriptObject o) /*-{
- return o && typeof o == 'function'
+ return o && typeof o == 'function'
}-*/;
-
+
/**
- * Check is a javascript object can be used as an array
+ * Check is a javascript can be cast to a node list
*/
- public static native boolean isArray(JavaScriptObject o) /*-{
- return Object.prototype.toString.call(o) == '[object Array]'
- || typeof o.length == 'number';
+ public static native boolean isNodeList(JavaScriptObject o) /*-{
+ var r = Object.prototype.toString.call(o);
+ return r == '[object HTMLCollection]' || r == '[object NodeList]'
+ || (typeof o == 'object' && o.length && o[0].tagName) ? true : false;
}-*/;
-
+
/**
- * Check is a javascript can be cast to a node list
+ * Check is a javascript object is a Window
*/
- public static native boolean isNodeList(JavaScriptObject o) /*-{
- var r = Object.prototype.toString.call(o);
- return r == '[object HTMLCollection]' || r == '[object NodeList]' ||
- (typeof o == 'object' && o.length && o[0].tagName)
- ? true : false;
- }-*/;
-
+ public static boolean isWindow(JavaScriptObject o) {
+ return hasProperty(o, "alert");
+ }
+
/**
- * Check if an element is a DOM or a XML node
+ * Check if an element is a DOM or a XML node
*/
public static boolean isXML(Node o) {
- return o == null ? false :
- !"HTML".equals(getOwnerDocument(o).getDocumentElement().getNodeName());
+ return o == null
+ ? false
+ : !"HTML".equals(getOwnerDocument(o).getDocumentElement().getNodeName());
}
-
- public static String XML2String(JavaScriptObject o) {
- return utilsImpl.XML2String(o);
- }
-
- public static String text(Element e) {
- return utilsImpl.text(e);
- }
-
+
/**
- * Parses a xml string and return the xml document element which
- * can then be passed to GQuery to create a typical GQuery object
- * that can be traversed and manipulated.
+ * Load an external javascript library. The inserted script replaces the
+ * element with the given id in the document.
*/
- public static Element parseXML(String xml) {
- return utilsImpl.parseXML(xml);
+ public static void loadScript(String url, String id) {
+ GQuery gs = GQuery.$(DOM.createElement("script"));
+ GQuery gp = GQuery.$("#" + id).parent();
+ if (gp.size() != 1) {
+ gp = GQuery.$(GQuery.document.getBody());
+ }
+ GQuery.$("#" + id).remove();
+ gp.append(gs.attr("src", url).attr("type", "text/javascript").attr("id", id));
}
-
+
/**
- * Returns the owner document element of an element.
+ * Return the element which is truth in the double scope.
*/
- public static Document getOwnerDocument(Node n) {
- return n == null ? null :
- n.getNodeType() == Node.DOCUMENT_NODE ?
- n.<Document>cast() : n.getOwnerDocument();
- }
-
+ public static native double or(double s1, double s2) /*-{
+ return s1 || s2;
+ }-*/;
+
/**
- * Remove duplicates from an elements array
+ * Return the element which is truth in the javascript scope.
*/
- public static JsArray<Element> unique(JsArray<Element> a) {
- return utilsImpl.unique(a);
- }
-
+ public static native <T> T or(T s1, T s2) /*-{
+ return s1 || s2;
+ }-*/;
+
/**
- * Parses a json string returning a Object with useful method
- * to get the content.
+ * Parses a json string returning a Object with useful method to get the
+ * content.
*/
- public static Properties parseJSON(String json) {
+ public static Properties parseJSON(String json) {
try {
return utilsImpl.parseJSON(json);
} catch (Exception e) {
- System.err.println("Error while parsing json: " + e.getMessage() + ".\n" + json);
+ System.err.println("Error while parsing json: " + e.getMessage() + ".\n"
+ + json);
return Properties.create();
}
}
-
+
/**
- * Return whether the event was prevented
+ * Parses a xml string and return the xml document element which can then be
+ * passed to GQuery to create a typical GQuery object that can be traversed
+ * and manipulated.
*/
- public static native boolean isDefaultPrevented(JavaScriptObject e)/*-{
- return e.defaultPrevented || e.returnValue === false
- || e.getPreventDefault && e.getPreventDefault() ? true : false;
+ public static Element parseXML(String xml) {
+ return utilsImpl.parseXML(xml);
+ }
+
+ public static String text(Element e) {
+ return utilsImpl.text(e);
+ }
+
+ /**
+ * Check if a number is true in the javascript scope.
+ */
+ public static native boolean truth(double a) /*-{
+ return a ? true : false;
+ }-*/;
+
+ /**
+ * Check if an object is true in the javascript scope.
+ */
+ public static native boolean truth(Object a) /*-{
+ return a ? true : false;
}-*/;
+
+ /**
+ * Remove duplicates from an elements array
+ */
+ public static JsArray<Element> unique(JsArray<Element> a) {
+ return utilsImpl.unique(a);
+ }
+
+ public static String XML2String(JavaScriptObject o) {
+ return utilsImpl.XML2String(o);
+ }
}
projects / gwtquery.git / commitdiff