Examples of org.w3c.dom.events.EventListener

org.w3c.dom.events.EventListener
The EventListener interface is the primary method for handling events. Users implement the EventListener interface and register their listener on an EventTarget using the AddEventListener method. The users should also remove their EventListener from its EventTarget after they have completed using the listener. @since DOM Level 2

            (EVENT_SCRIPT_DESCRIPTION,
             new Object [] {d.getURL(),
                            SVGConstants.SVG_ONLOAD_ATTRIBUTE, 
                            new Integer(line)});


        EventListener l = new EventListener() {
                public void handleEvent(Event evt) {
                    try {
                        interp.bindObject(EVENT_NAME, evt);
                        interp.bindObject(ALTERNATE_EVENT_NAME, evt);
                        interp.evaluate(new StringReader(s), desc);

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     * @param doc The current document.
     */
    public void initializeEventListeners(SVGDocument doc) {
        System.err.println(">>>>>>>>>>>>>>>>>>> SVGDocument : " + doc);
        ((EventTarget)doc.getElementById("testContent")).
            addEventListener("mousedown", new EventListener() {
                public void handleEvent(Event evt) {
                    ((Element)evt.getTarget()).setAttributeNS(null, "fill", "orange");
                }
            }, false);
    }

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        }


        final int nGranted = nGrantedTmp;


        EventTarget root = (EventTarget)document.getDocumentElement();
        root.addEventListener("SVGLoad", new EventListener() {
                public void handleEvent(Event evt){
                    SecurityManager sm = System.getSecurityManager();
                    int successCnt = 0;
                    Vector unexpectedGrants = new Vector();
                    Vector unexpectedDenial = new Vector();

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        public Object call(Context ctx, Scriptable scope,
                           Scriptable thisObj, Object[] args)
            throws JavaScriptException {
            NativeJavaObject  njo = (NativeJavaObject)thisObj;
            if (args[1] instanceof Function) {
                EventListener evtListener = new FunctionEventListener
                    ((Function)args[1],
                     ((RhinoInterpreter.ExtendedContext)ctx).getInterpreter());
                listenerMap.put(args[1], new SoftReference(evtListener));
                // we need to marshall args
                Class[] paramTypes = { String.class, Function.class,
                                       Boolean.TYPE };
                for (int i = 0; i < args.length; i++)
                    args[i] = Context.toType(args[i], paramTypes[i]);
                ((EventTarget)njo.unwrap()).addEventListener
                    ((String)args[0], evtListener,
                     ((Boolean)args[2]).booleanValue());
                return Undefined.instance;
            }
            if (args[1] instanceof NativeObject) {
                EventListener evtListener =
                    new HandleEventListener((Scriptable)args[1],
                                            ((RhinoInterpreter.ExtendedContext)
                                             ctx).getInterpreter());
                listenerMap.put(args[1], new SoftReference(evtListener));
                // we need to marshall args

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            NativeJavaObject  njo = (NativeJavaObject)thisObj;
            if (args[1] instanceof Function) {
                SoftReference sr = (SoftReference)listenerMap.get(args[1]);
                if (sr == null)
                    return Undefined.instance;
                EventListener el = (EventListener)sr.get();
                if (el == null)
                    return Undefined.instance;
                // we need to marshall args
                Class[] paramTypes = { String.class, Function.class,
                                       Boolean.TYPE };
                for (int i = 0; i < args.length; i++)
                    args[i] = Context.toType(args[i], paramTypes[i]);
                ((EventTarget)njo.unwrap()).removeEventListener
                    ((String)args[0], el, ((Boolean)args[2]).booleanValue());
                return Undefined.instance;
            }
            if (args[1] instanceof NativeObject) {
                SoftReference sr = (SoftReference)listenerMap.get(args[1]);
                if (sr == null)
                    return Undefined.instance;
                EventListener el = (EventListener)sr.get();
                if (el == null)
                    return Undefined.instance;
                // we need to marshall args
                Class[] paramTypes = { String.class, Scriptable.class,
                                       Boolean.TYPE };

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    class SVGScrollDocumentLoaderListener extends SVGDocumentLoaderAdapter {
        public void documentLoadingCompleted(SVGDocumentLoaderEvent e) {
            SVGSVGElement root = e.getSVGDocument().getRootElement();
            root.addEventListener
                (SVGConstants.SVG_SVGZOOM_EVENT_TYPE, 
                 new EventListener() {
                     public void handleEvent(Event evt) {
                         if (!(evt.getTarget() instanceof SVGSVGElement))
                             return;
                         // assert(evt.getType() == 
                         //        SVGConstants.SVG_SVGZOOM_EVENT_TYPE);

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        super.buildGraphicsNode(ctx, e, node);


        if (ctx.isInteractive()) {
            EventTarget target = (EventTarget)e;
            EventListener l = new CursorMouseOverListener(ctx);
            target.addEventListener(SVG_EVENT_MOUSEOVER, l, false);
            ctx.storeEventListener(target, SVG_EVENT_MOUSEOVER, l, false);
        }
    }

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                        asb.append(s, m);
                    }
                } else if (ln.equals(SVG_A_TAG)) {
                    EventTarget target = (EventTarget)nodeElement;
                    UserAgent ua = ctx.getUserAgent();
                    EventListener l = new SVGAElementBridge.AnchorListener(ua);
                    target.addEventListener(SVG_EVENT_CLICK, l, false);
                    ctx.storeEventListener(target, SVG_EVENT_CLICK, l, false);
                    
                    fillAttributedStringBuffer(ctx,
                                               nodeElement,

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     * Updates the registration of a listener on the given element.
     */
    protected void updateScriptingListeners(Element elt, String attr) {
        String        domEvt   = (String)       attrToDOMEvent.get(attr);
        if (domEvt == null) return;  // Not an event attr.
        EventListener listener = (EventListener)attrToListener.get(attr);
        EventTarget   target   = (EventTarget)  elt;
        if (elt.hasAttributeNS(null, attr))
            target.addEventListener(domEvt, listener, false);
        else
            target.removeEventListener(domEvt, listener, false);

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            Iterator i = eventListenerSet.iterator();
            while (i.hasNext()) {
                EventListenerMememto elm = (EventListenerMememto)i.next();
                EventTarget   et = elm.getTarget();
                if (et == evtTarget) {
                    EventListener el = elm.getListener();
                    boolean       uc = elm.getUseCapture();
                    String        t  = elm.getEventType();
                    if ((et == null) || (el == null) || (t == null))
                        continue;
                    et.removeEventListener(t, el, uc);

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