Examples of com.google.gwt.event.shared.HandlerRegistration

com.google.gwt.event.shared.HandlerRegistration
Registration returned from a call to {@link HandlerManager#addHandler(com.google.gwt.event.shared.GwtEvent.Type,EventHandler)}. Use the handler registration to remove handlers when they are no longer needed. Note, this interface is under the control of the {@link HandlerManager} classand may be expanded over time, so extend {@link DefaultHandlerRegistration}if you do not wish to get compiler errors if we extend the handler registry functionality.

   * @see gwtupload.client.IUploader#addOnChangeUploadHandler(gwtupload.client.IUploader.OnChangeUploaderHandler)
   */
  public HandlerRegistration addOnChangeUploadHandler(final IUploader.OnChangeUploaderHandler handler) {
    assert handler != null;
    onChangeHandlers.add(handler);
    return new HandlerRegistration() {
      public void removeHandler() {
        onChangeHandlers.remove(handler);
      }
    };
  }

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   * @see gwtupload.client.IUploader#addOnFinishUploadHandler(gwtupload.client.IUploader.OnFinishUploaderHandler)
   */
  public HandlerRegistration addOnFinishUploadHandler(final IUploader.OnFinishUploaderHandler handler) {
    assert handler != null;
    onFinishHandlers.add(handler);
    return new HandlerRegistration() {
      public void removeHandler() {
        onFinishHandlers.remove(handler);
      }
    };
  }

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   * @see gwtupload.client.IUploader#addOnStartUploadHandler(gwtupload.client.IUploader.OnStartUploaderHandler)
   */
  public HandlerRegistration addOnStartUploadHandler(final IUploader.OnStartUploaderHandler handler) {
    assert handler != null;
    onStartHandlers.add(handler);
    return new HandlerRegistration() {
      public void removeHandler() {
        onStartHandlers.remove(handler);
      }
    };
  }

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   * @see gwtupload.client.IUploader#addOnStatusChangedHandler(gwtupload.client.IUploader.OnStatusChangedHandler)
   */
  public HandlerRegistration addOnStatusChangedHandler(final OnStatusChangedHandler handler) {
    assert handler != null;
    onStatusChangeHandlers.add(handler);
    return new HandlerRegistration() {
      public void removeHandler() {
        onStatusChangeHandlers.remove(handler);
      }
    };
  }

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   * @return  {@link HandlerRegistration} used to remove this handler
   */
  public HandlerRegistration setCaptureElement(OMSVGElement captureElt, LoseCaptureHandler loseCaptureHandler) {
    init();
    this.captureElt = captureElt;
    HandlerRegistration registration = null;
    if (loseCaptureHandler != null) {
      registration = captureElt.addHandler(loseCaptureHandler, LoseCaptureEvent.getType());
    }
    return registration;
  }

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   * @param filter the filter to be removed
   */
  public void removeFilter(Filter<M, ?> filter) {
    filters.remove(filter.getValueProvider().getPath());


    HandlerRegistration r = registrations.get(filter);
    if (r != null) {
      r.removeHandler();
    }
  }

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      d.setConstrainClient(false);
      portlet.setData("gxt.draggable", d);
    }
    d.setUseProxy(true);


    HandlerRegistration reg = handlerRegistrations.get(portlet.getId());
    if (reg != null) {
      reg.removeHandler();
    }
    d.addDragHandler(handler);


    d.setMoveAfterProxyDrag(false);
    d.setSizeProxyToSource(true);

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    public void reset() {
        myChannelTree.clear();
        Iterator<HandlerRegistration> theHandlerRegistrationIterator = myHandlerRegistrations.iterator();
        while(theHandlerRegistrationIterator.hasNext()) {
            HandlerRegistration theHandlerRegistration = theHandlerRegistrationIterator.next();
            theHandlerRegistration.removeHandler();
            theHandlerRegistrationIterator.remove();
        }
    }

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    public void enable(boolean isEnable) {
        myAddChannelButton.setEnabled(isEnable);
    }


    public HandlerRegistration addAddChannelButtonListener(ClickHandler aClickHandler) {
        final HandlerRegistration theClickHandlerRegistration = myAddChannelButton.addClickHandler(aClickHandler);
        myHandlerRegistrations.add(theClickHandlerRegistration);
        return theClickHandlerRegistration;
    }

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                    aChannelSelectListener.onSelect(theChannelName);
                }
            }
        };


        final HandlerRegistration theSelectionHandlerRegistration = myChannelTree.addSelectionHandler(theTreeSelectionHandler);
        myHandlerRegistrations.add(theSelectionHandlerRegistration);
        return theSelectionHandlerRegistration;
    }

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