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.

        handlers = new LinkedList<ClickHandler>();
    }


    @Override
    public HandlerRegistration addClickHandler(final ClickHandler handler) {
        HandlerRegistration result = new HandlerRegistration() {


            @Override
            public void removeHandler() {
                handlers.remove(handler);
            }

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  private void updateHandlers(boolean activate) {
    if (activate) {
      final com.google.web.bindery.event.shared.HandlerRegistration placeReg = eventBus.addHandler(PlaceChangeEvent.TYPE, this);
      final com.google.web.bindery.event.shared.HandlerRegistration placeRequestReg = eventBus.addHandler(PlaceChangeRequestEvent.TYPE, this);


      this.handlerRegistration = new HandlerRegistration() {
        public void removeHandler() {
          placeReg.removeHandler();
          placeRequestReg.removeHandler();
        }
      };

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    @Override
    public HandlerRegistration addValueChangeHandler(final ValueChangeHandler<String> handler) {


        changeHandlers.add(handler);


        return new HandlerRegistration() {
            @Override
            public void removeHandler() {
                changeHandlers.remove(handler);
            }
        };

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     * 
     * @param blurHandler
     *            the handler to remove
     */
    public void removeBlurHandler(BlurHandler blurHandler) {
        HandlerRegistration registration = blurHandlers.remove(blurHandler);
        if (registration != null) {
            registration.removeHandler();
        }
    }

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    // Can't just use getObject().getClass() because it's not the proxy type
    EntityProxyId<?> stableId = ((EntityProxy) getObject()).stableId();
    @SuppressWarnings("unchecked")
    Class<EntityProxy> clazz = (Class<EntityProxy>) stableId.getProxyClass();
    HandlerRegistration toReturn = EntityProxyChange.<EntityProxy> registerForProxyType(
        eventBus, clazz, new SubscriptionHandler());
    return toReturn;
  }

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                    public void setPosition(int offsetWidth, int offsetHeight) {
                        dialog.center();
                    }
                });


                final HandlerRegistration windowResizeHandlerRegistration = Window.addResizeHandler(new ResizeHandler() {
                    public void onResize(ResizeEvent event) {
                        dialog.center();
                    }
                });


                dialog.addCloseHandler(new CloseHandler<Popup>() {
                    public void onClose(CloseEvent<Popup> closeEvent) {
                        windowResizeHandlerRegistration.removeHandler();
                    }
                });
            }
        });

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        this.listGrid.setData(this.initialSelection);
    }


    public HandlerRegistration addListOrderChangedHandler(final ListOrderChangedHandler handler) {
        this.listOrderChangedHandlers.add(handler);
        return new HandlerRegistration() {
            @Override
            public void removeHandler() {
                listOrderChangedHandlers.remove(handler);
            }
        };

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        populateAvailableGrid(getLatestCriteria(getAvailableFilterForm()));
    }


    public HandlerRegistration addAssignedItemsChangedHandler(final AssignedItemsChangedHandler handler) {
        this.assignedItemsChangedHandlers.add(handler);
        return new HandlerRegistration() {
            @Override
            public void removeHandler() {
                assignedItemsChangedHandlers.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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      enqueueAdd(type, source, handler);
    } else {
      doAddNow(type, source, handler);
    }


    return new HandlerRegistration() {
      public void removeHandler() {
        doRemove(type, source, handler);
      }
    };
  }

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