Examples of org.w3c.dom.events.EventTarget.addEventListener()

org.w3c.dom.events.EventTarget.addEventListener()
This method allows the registration of event listeners on the event target. If an EventListener is added to an EventTarget which is currently processing an event the new listener will not be triggered by the current event.
If multiple identical EventListener s are registered on the same EventTarget with the same parameters the duplicate instances are discarded. They do not cause the EventListener to be called twice and since they are discarded they do not need to be removed with the removeEventListener method. @param type The event type for which the user is registering @param listener The listener parameter takes an interface implemented by the user which contains the methods to be called when the event occurs. @param useCapture If true, useCapture indicates that the user wishes to initiate capture. After initiating capture, all events of the specified type will be dispatched to the registered EventListener before being dispatched to any EventTargets beneath them in the tree. Events which are bubbling upward through the tree will not trigger an EventListener designated to use capture.

            }
            if (elt.hasAttributeNS(null, "onkeydown")) {
                target.addEventListener("keydown", keydownListener, false);
            }
            if (elt.hasAttributeNS(null, "onkeyup")) {
                target.addEventListener("keyup", keyupListener, false);
            }
        }


        // Adds the listeners to the children
        for (Node n = node.getFirstChild();

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                dispatcher.addGraphicsNodeKeyListener(listener);
                // add an unload listener on the SVGDocument to remove
                // that listener for dispatching events
                EventListener l = new GVTUnloadListener(dispatcher, listener);
                EventTarget target = (EventTarget)doc;
                target.addEventListener("SVGUnload", l, false);
                ctx.storeEventListener(target, "SVGUnload", l, false);
            }
        }
    }

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        super.buildGraphicsNode(ctx, e, node);


        EventTarget target = (EventTarget)e;


        EventListener l = new AnchorListener(ctx.getUserAgent());
        target.addEventListener(SVG_EVENT_CLICK, l, false);
        ctx.storeEventListener(target, SVG_EVENT_CLICK, l, false);


        l = new CursorMouseOverListener(ctx.getUserAgent());
        target.addEventListener(SVG_EVENT_MOUSEOVER, l, false);
        ctx.storeEventListener(target, SVG_EVENT_MOUSEOVER, l, false);

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        EventListener l = new AnchorListener(ctx.getUserAgent());
        target.addEventListener(SVG_EVENT_CLICK, l, false);
        ctx.storeEventListener(target, SVG_EVENT_CLICK, l, false);


        l = new CursorMouseOverListener(ctx.getUserAgent());
        target.addEventListener(SVG_EVENT_MOUSEOVER, l, false);
        ctx.storeEventListener(target, SVG_EVENT_MOUSEOVER, l, false);


        l = new CursorMouseOutListener(ctx.getUserAgent());
        target.addEventListener(SVG_EVENT_MOUSEOUT, l, false);
        ctx.storeEventListener(target, SVG_EVENT_MOUSEOUT, l, false);

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        l = new CursorMouseOverListener(ctx.getUserAgent());
        target.addEventListener(SVG_EVENT_MOUSEOVER, l, false);
        ctx.storeEventListener(target, SVG_EVENT_MOUSEOVER, l, false);


        l = new CursorMouseOutListener(ctx.getUserAgent());
        target.addEventListener(SVG_EVENT_MOUSEOUT, l, false);
        ctx.storeEventListener(target, SVG_EVENT_MOUSEOUT, l, false);
    }


    /**
     * Returns true as the &lt;a> element is a container.

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        super.buildGraphicsNode(ctx, e, node);


        EventTarget target = (EventTarget)e;


        EventListener l = new CursorMouseOverListener(ctx.getUserAgent());
        target.addEventListener(SVG_EVENT_MOUSEOVER, l, false);
        ctx.storeEventListener(target, SVG_EVENT_MOUSEOVER, l, false);


    }


    /**

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        EventTarget evtTarget = (EventTarget)e;


        //to be notified when a child is removed from the 
        //<text> element.
        evtTarget.addEventListener
            ("DOMNodeRemoved", childNodeRemovedEventListener, true);
        ctx.storeEventListener
            (evtTarget, "DOMNodeRemoved", childNodeRemovedEventListener, true);
        
        //to be notified when the modification of the subtree

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        ctx.storeEventListener
            (evtTarget, "DOMNodeRemoved", childNodeRemovedEventListener, true);
        
        //to be notified when the modification of the subtree
        //of the <text> element is done
        evtTarget.addEventListener
            ("DOMSubtreeModified", subtreeModifiedEventListener, false);
        ctx.storeEventListener
            (evtTarget, "DOMSubtreeModified", subtreeModifiedEventListener, false);


        // traverse the children to add context on

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                    }
                } 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,
                                               false,

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                        } catch (InterpreterException e) {
                            handleInterpreterException(e);
                        }
                    }
                };
            t.addEventListener("SVGLoad", l, false);
        }
        t.dispatchEvent(ev);
        if (s.length() > 0) {
            t.removeEventListener("SVGLoad", l, false);
        }

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