List of usage examples for com.google.gwt.maps.client.event PolygonRemoveHandler PolygonRemoveHandler
PolygonRemoveHandler
From source file:com.google.gwt.maps.sample.hellomaps.client.MapEventDemo.java
License:Apache License
private void addListenerToMarker(HandlerActions a) { // Create a unique ID for this new listener. final int nextListenerId = ++listenerId; // Create a new row to add to the UI. final int rowNumber = handlerTable.getRowCount(); handlerTable.setWidget(rowNumber, 0, new Label("" + nextListenerId)); handlerTable.setWidget(rowNumber, 1, new Label(a.valueOf())); final TextBox textBox = new TextBox(); textBox.setReadOnly(true);/*from w ww.ja va 2 s . co m*/ textBox.setSize("30em", "1em"); handlerTable.setWidget(rowNumber, 2, textBox); Button clearButton = new Button("Clear Text"); clearButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { textBox.setText(""); } }); handlerTable.setWidget(rowNumber, 3, clearButton); Button removeHandlerButton = new Button("Remove Handler"); handlerTable.setWidget(rowNumber, 4, removeHandlerButton); // Add event specific handlers switch (a) { case INFO_WINDOW_CLOSE_CLICK_HANDLER: { final InfoWindowCloseClickHandler h = new InfoWindowCloseClickHandler() { public void onCloseClick(InfoWindowCloseClickEvent event) { textBox.setText(textBox.getText() + "onCloseClick()"); } }; map.getInfoWindow().addInfoWindowCloseClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.getInfoWindow().removeInfoWindowCloseClickHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case INFO_WINDOW_MAXIMIZE_CLICK_HANDLER: { final InfoWindowMaximizeClickHandler h = new InfoWindowMaximizeClickHandler() { public void onMaximizeClick(InfoWindowMaximizeClickEvent event) { textBox.setText(textBox.getText() + "onMaximizeClick()"); } }; map.getInfoWindow().addInfoWindowMaximizeClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.getInfoWindow().removeInfoWindowMaximizeClickHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case INFO_WINDOW_MAXIMIZE_END_HANDLER: { final InfoWindowMaximizeEndHandler h = new InfoWindowMaximizeEndHandler() { public void onMaximizeEnd(InfoWindowMaximizeEndEvent event) { textBox.setText(textBox.getText() + "onMaximizeEnd()"); } }; map.getInfoWindow().addInfoWindowMaximizeEndHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.getInfoWindow().removeInfoWindowMaximizeEndHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case INFO_WINDOW_RESTORE_CLICK_HANDLER: { final InfoWindowRestoreClickHandler h = new InfoWindowRestoreClickHandler() { public void onRestoreClick(InfoWindowRestoreClickEvent event) { textBox.setText(textBox.getText() + "onRestoreClick()"); } }; map.getInfoWindow().addInfoWindowRestoreClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.getInfoWindow().removeInfoWindowRestoreClickHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case INFO_WINDOW_RESTORE_END_HANDLER: { final InfoWindowRestoreEndHandler h = new InfoWindowRestoreEndHandler() { public void onRestoreEnd(InfoWindowRestoreEndEvent event) { textBox.setText(textBox.getText() + "onRestoreEnd()"); } }; map.getInfoWindow().addInfoWindowRestoreEndHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.getInfoWindow().removeInfoWindowRestoreEndHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_INFO_WINDOW_BEFORE_CLOSE_HANDLER: { final MapInfoWindowBeforeCloseHandler h = new MapInfoWindowBeforeCloseHandler() { public void onInfoWindowBeforeClose(MapInfoWindowBeforeCloseEvent event) { textBox.setText(textBox.getText() + "onInfoWindowBeforeClose()"); } }; map.addInfoWindowBeforeCloseHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeInfoWindowBeforeCloseHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_INFO_WINDOW_CLOSE_HANDLER: { final MapInfoWindowCloseHandler h = new MapInfoWindowCloseHandler() { public void onInfoWindowClose(MapInfoWindowCloseEvent event) { textBox.setText(textBox.getText() + "onInfoWindowClose()"); } }; map.addInfoWindowCloseHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeInfoWindowCloseHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_INFO_WINDOW_OPEN_HANDLER: { final MapInfoWindowOpenHandler h = new MapInfoWindowOpenHandler() { public void onInfoWindowOpen(MapInfoWindowOpenEvent event) { textBox.setText(textBox.getText() + "onInfoWindowOpen()"); } }; map.addInfoWindowOpenHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeInfoWindowOpenHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_CLEAR_OVERLAYS_HANDLER: { final MapClearOverlaysHandler h = new MapClearOverlaysHandler() { public void onClearOverlays(MapClearOverlaysEvent event) { textBox.setText(textBox.getText() + "onClearOverlays()"); } }; map.addMapClearOverlaysHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapClearOverlaysHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_ADD_MAP_TYPE_HANDLER: { final MapAddMapTypeHandler h = new MapAddMapTypeHandler() { public void onAddMapType(MapAddMapTypeEvent event) { textBox.setText(textBox.getText() + "onAddMapType(" + event.getType().getName(true) + ")"); } }; map.addMapAddMapTypeHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapAddMapTypeHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_ADD_OVERLAY_HANDLER: { final MapAddOverlayHandler h = new MapAddOverlayHandler() { public void onAddOverlay(MapAddOverlayEvent event) { textBox.setText(textBox.getText() + "onAddOverlay(" + event.getOverlay() + ")"); } }; map.addMapAddOverlayHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapAddOverlayHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_CLICK_HANDLER: { final MapClickHandler h = new MapClickHandler() { public void onClick(MapClickEvent e) { textBox.setText(textBox.getText() + "onClick(" + e.getLatLng() + ")"); } }; map.addMapClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapClickHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_DOUBLE_CLICK_HANDLER: { final MapDoubleClickHandler h = new MapDoubleClickHandler() { public void onDoubleClick(MapDoubleClickEvent e) { textBox.setText(textBox.getText() + "onDoubleClick(" + e.getLatLng() + ")"); } }; map.addMapDoubleClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapDoubleClickHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_DRAG_END_HANDLER: { final MapDragEndHandler h = new MapDragEndHandler() { public void onDragEnd(MapDragEndEvent event) { textBox.setText(textBox.getText() + "onDragEnd()"); } }; map.addMapDragEndHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapDragEndHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_DRAG_HANDLER: { final MapDragHandler h = new MapDragHandler() { public void onDrag(MapDragEvent event) { textBox.setText(textBox.getText() + "onDrag()"); } }; map.addMapDragHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapDragHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_DRAG_START_HANDLER: { final MapDragStartHandler h = new MapDragStartHandler() { public void onDragStart(MapDragStartEvent event) { textBox.setText(textBox.getText() + "onDragStart()"); } }; map.addMapDragStartHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapDragStartHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_MOUSE_OUT_HANDLER: { final MapMouseOutHandler h = new MapMouseOutHandler() { public void onMouseOut(MapMouseOutEvent event) { textBox.setText(textBox.getText() + "onMouseOut(" + event.getLatLng() + ")"); } }; map.addMapMouseOutHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapMouseOutHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_MOUSE_OVER_HANDLER: { final MapMouseOverHandler h = new MapMouseOverHandler() { public void onMouseOver(MapMouseOverEvent event) { textBox.setText(textBox.getText() + "onMouseOver(" + event.getLatLng() + ")"); } }; map.addMapMouseOverHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapMouseOverHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_MOUSE_MOVE_HANDLER: { final MapMouseMoveHandler h = new MapMouseMoveHandler() { public void onMouseMove(MapMouseMoveEvent event) { textBox.setText(textBox.getText() + "onMouseMove(" + event.getLatLng() + ")"); } }; map.addMapMouseMoveHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapMouseMoveHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_MOVE_END_HANDLER: { final MapMoveEndHandler h = new MapMoveEndHandler() { public void onMoveEnd(MapMoveEndEvent e) { textBox.setText(textBox.getText() + "onMoveEnd()"); } }; map.addMapMoveEndHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapMoveEndHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_MOVE_HANDLER: { final MapMoveHandler h = new MapMoveHandler() { public void onMove(MapMoveEvent e) { textBox.setText(textBox.getText() + "onMove()"); } }; map.addMapMoveHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapMoveHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_MOVE_START_HANDLER: { final MapMoveStartHandler h = new MapMoveStartHandler() { public void onMoveStart(MapMoveStartEvent e) { textBox.setText(textBox.getText() + "onMoveStart()"); } }; map.addMapMoveStartHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapMoveStartHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_REMOVE_MAP_TYPE_HANDLER: { final MapRemoveMapTypeHandler h = new MapRemoveMapTypeHandler() { public void onRemoveMapType(MapRemoveMapTypeEvent event) { textBox.setText(textBox.getText() + "onRemoveMapType(" + event.getType().getName(true) + ")"); } }; map.addMapRemoveMapTypeHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapRemoveMapTypeHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_REMOVE_OVERLAY_HANDLER: { final MapRemoveOverlayHandler h = new MapRemoveOverlayHandler() { public void onRemoveOverlay(MapRemoveOverlayEvent event) { textBox.setText(textBox.getText() + "onRemoveOverlay(" + event.getOverlay().toString() + ")"); } }; map.addMapRemoveOverlayHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapRemoveOverlayHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_RIGHT_CLICK_HANDLER: { final MapRightClickHandler h = new MapRightClickHandler() { public void onRightClick(MapRightClickEvent e) { textBox.setText(textBox.getText() + "onRightClick(" + e.getPoint() + ")"); } }; map.addMapRightClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapRightClickHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_TYPE_CHANGED_HANDLER: { final MapTypeChangedHandler h = new MapTypeChangedHandler() { public void onTypeChanged(MapTypeChangedEvent e) { textBox.setText(textBox.getText() + "onTypeChanged()"); } }; map.addMapTypeChangedHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapTypeChangedHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MAP_ZOOM_END_HANDLER: { final MapZoomEndHandler h = new MapZoomEndHandler() { public void onZoomEnd(MapZoomEndEvent e) { textBox.setText(textBox.getText() + "onZoomEnd(" + e.getNewZoomLevel() + "," + e.getOldZoomLevel() + ")"); } }; map.addMapZoomEndHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { map.removeMapZoomEndHandler(h); // removeRowFromTable(nextListenerId); } }); } break; case MARKER_CLICK_HANDLER: { final MarkerClickHandler h = new MarkerClickHandler() { public void onClick(MarkerClickEvent e) { textBox.setText(textBox.getText() + "onClick()"); } }; marker.addMarkerClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerClickHandler(h); } }); } break; case MARKER_DOUBLE_CLICK_HANDLER: { final MarkerDoubleClickHandler h = new MarkerDoubleClickHandler() { public void onDoubleClick(MarkerDoubleClickEvent e) { textBox.setText(textBox.getText() + "onDoubleClick()"); } }; marker.addMarkerDoubleClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerDoubleClickHandler(h); } }); } break; case MARKER_MOUSE_DOWN_HANDLER: { final MarkerMouseDownHandler h = new MarkerMouseDownHandler() { public void onMouseDown(MarkerMouseDownEvent e) { textBox.setText(textBox.getText() + "onMouseDown()"); } }; marker.addMarkerMouseDownHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerMouseDownHandler(h); } }); } break; case MARKER_MOUSE_UP_HANDLER: { final MarkerMouseUpHandler h = new MarkerMouseUpHandler() { public void onMouseUp(MarkerMouseUpEvent e) { textBox.setText(textBox.getText() + "onMouseUp()"); } }; marker.addMarkerMouseUpHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerMouseUpHandler(h); } }); } break; case MARKER_MOUSE_OVER_HANDLER: { final MarkerMouseOverHandler h = new MarkerMouseOverHandler() { public void onMouseOver(MarkerMouseOverEvent e) { textBox.setText(textBox.getText() + "onMouseOver()"); } }; marker.addMarkerMouseOverHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerMouseOverHandler(h); } }); } break; case MARKER_MOUSE_OUT_HANDLER: { final MarkerMouseOutHandler h = new MarkerMouseOutHandler() { public void onMouseOut(MarkerMouseOutEvent e) { textBox.setText(textBox.getText() + "onMouseOut()"); } }; marker.addMarkerMouseOutHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerMouseOutHandler(h); } }); } break; case MARKER_INFO_WINDOW_OPEN_HANDLER: { final MarkerInfoWindowOpenHandler h = new MarkerInfoWindowOpenHandler() { public void onInfoWindowOpen(MarkerInfoWindowOpenEvent e) { textBox.setText(textBox.getText() + "onInfoWindowOpen()"); } }; marker.addMarkerInfoWindowOpenHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerInfoWindowOpenHandler(h); } }); } break; case MARKER_INFO_WINDOW_BEFORECLOSE_HANDLER: { final MarkerInfoWindowBeforeCloseHandler h = new MarkerInfoWindowBeforeCloseHandler() { public void onInfoWindowBeforeClose(MarkerInfoWindowBeforeCloseEvent e) { textBox.setText(textBox.getText() + "onInfoWindowBeforeClose()"); } }; marker.addMarkerInfoWindowBeforeCloseHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerInfoWindowBeforeCloseHandler(h); } }); } break; case MARKER_INFO_WINDOW_CLOSE_HANDLER: { final MarkerInfoWindowCloseHandler h = new MarkerInfoWindowCloseHandler() { public void onInfoWindowClose(MarkerInfoWindowCloseEvent e) { textBox.setText(textBox.getText() + "onInfoWindowClose()"); } }; marker.addMarkerInfoWindowCloseHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerInfoWindowCloseHandler(h); } }); } break; case MARKER_REMOVE_HANDLER: { final MarkerRemoveHandler h = new MarkerRemoveHandler() { public void onRemove(MarkerRemoveEvent e) { textBox.setText(textBox.getText() + "onRemove()"); } }; marker.addMarkerRemoveHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerRemoveHandler(h); } }); } break; case MARKER_DRAG_START_HANDLER: { final MarkerDragStartHandler h = new MarkerDragStartHandler() { public void onDragStart(MarkerDragStartEvent e) { textBox.setText(textBox.getText() + "onDragStart()"); } }; marker.addMarkerDragStartHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerDragStartHandler(h); } }); } break; case MARKER_DRAG_HANDLER: { final MarkerDragHandler h = new MarkerDragHandler() { public void onDrag(MarkerDragEvent e) { textBox.setText(textBox.getText() + "onDrag()"); } }; marker.addMarkerDragHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerDragHandler(h); } }); } break; case MARKER_DRAG_END_HANDLER: { final MarkerDragEndHandler h = new MarkerDragEndHandler() { public void onDragEnd(MarkerDragEndEvent e) { textBox.setText(textBox.getText() + "onDragEnd()"); } }; marker.addMarkerDragEndHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerDragEndHandler(h); } }); } break; case MARKER_VISIBILITY_CHANGED_HANDLER: { final MarkerVisibilityChangedHandler h = new MarkerVisibilityChangedHandler() { public void onVisibilityChanged(MarkerVisibilityChangedEvent e) { textBox.setText(textBox.getText() + "onVisibilityChanged(" + e.isVisible() + ")"); } }; marker.addMarkerVisibilityChangedHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { marker.removeMarkerVisibilityChangedHandler(h); } }); } break; case POLYLINE_CLICK_HANDLER: { final PolylineClickHandler h = new PolylineClickHandler() { public void onClick(PolylineClickEvent e) { textBox.setText(textBox.getText() + "onClick(" + e.getLatLng() + ")"); } }; polyline.addPolylineClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polyline.removePolylineClickHandler(h); } }); } break; case POLYLINE_REMOVE_HANDLER: { final PolylineRemoveHandler h = new PolylineRemoveHandler() { public void onRemove(PolylineRemoveEvent e) { textBox.setText(textBox.getText() + "onRemove()"); } }; polyline.addPolylineRemoveHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polyline.removePolylineRemoveHandler(h); } }); } break; case POLYLINE_VISIBILITY_CHANGED_HANDLER: { final PolylineVisibilityChangedHandler h = new PolylineVisibilityChangedHandler() { public void onVisibilityChanged(PolylineVisibilityChangedEvent e) { textBox.setText(textBox.getText() + "onVisibilityChanged(" + e.isVisible() + ")"); } }; polyline.addPolylineVisibilityChangedHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polyline.removePolylineVisibilityChangedHandler(h); } }); } break; case POLYLINE_MOUSEOUT_HANDLER: { final PolylineMouseOutHandler h = new PolylineMouseOutHandler() { public void onMouseOut(PolylineMouseOutEvent e) { textBox.setText(textBox.getText() + "onMouseOut()"); } }; polyline.addPolylineMouseOutHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polyline.removePolylineMouseOutHandler(h); } }); } break; case POLYLINE_MOUSEOVER_HANDLER: { final PolylineMouseOverHandler h = new PolylineMouseOverHandler() { public void onMouseOver(PolylineMouseOverEvent e) { textBox.setText(textBox.getText() + "onMouseOver()"); } }; polyline.addPolylineMouseOverHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polyline.removePolylineMouseOverHandler(h); } }); } break; case POLYGON_CLICK_HANDLER: { final PolygonClickHandler h = new PolygonClickHandler() { public void onClick(PolygonClickEvent e) { textBox.setText(textBox.getText() + "onClick(" + e.getLatLng() + ")"); } }; polygon.addPolygonClickHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polygon.removePolygonClickHandler(h); } }); } break; case POLYGON_REMOVE_HANDLER: { final PolygonRemoveHandler h = new PolygonRemoveHandler() { public void onRemove(PolygonRemoveEvent e) { textBox.setText(textBox.getText() + "onRemove()"); } }; polygon.addPolygonRemoveHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polygon.removePolygonRemoveHandler(h); } }); } break; case POLYGON_VISIBILITY_CHANGED_HANDLER: { final PolygonVisibilityChangedHandler h = new PolygonVisibilityChangedHandler() { public void onVisibilityChanged(PolygonVisibilityChangedEvent e) { textBox.setText(textBox.getText() + "onVisibilityChanged(" + e.isVisible() + ")"); } }; polygon.addPolygonVisibilityChangedHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polygon.removePolygonVisibilityChangedHandler(h); } }); } break; case POLYGON_MOUSEOUT_HANDLER: { final PolygonMouseOutHandler h = new PolygonMouseOutHandler() { public void onMouseOut(PolygonMouseOutEvent e) { textBox.setText(textBox.getText() + "onMouseOut()"); } }; polygon.addPolygonMouseOutHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polygon.removePolygonMouseOutHandler(h); } }); } break; case POLYGON_MOUSEOVER_HANDLER: { final PolygonMouseOverHandler h = new PolygonMouseOverHandler() { public void onMouseOver(PolygonMouseOverEvent e) { textBox.setText(textBox.getText() + "onMouseOver()"); } }; polygon.addPolygonMouseOverHandler(h); removeHandlerButton.addClickListener(new ClickListener() { public void onClick(Widget sender) { polygon.removePolygonMouseOverHandler(h); } }); } break; default: Window.alert("Unhandled HandlerActions case : " + a.valueOf()); } }