Java Code Examples for com.google.gwt.event.logical.shared.SelectionEvent

public BaseTree() {
	super(new TreeImageResources(), true);

	this.addStyleName("bda-treedir");

	this.addSelectionHandler(new SelectionHandler<TreeItem>() {
		@Override
		public void onSelection(SelectionEvent<TreeItem> event) {
			TreeItem item = event.getSelectedItem();
			Boolean state = item.getState();
			// [GWT Issue 3660] to avoid pass invoke onSection two times
			TreeItem parent = item.getParentItem();
			item.getTree().setSelectedItem(parent, false);
			if (parent != null)
				parent.setSelected(false);
			item.setState(!state);
		}
	});
}
 

@Override
protected void onLoad() {
    super.onLoad();

    if (selectable) {
        selectHandler = registerHandler(addSelectionHandler(selectionEvent -> {
            clearActive();
            selectionEvent.getSelectedItem().setActive(true);
        }));

        for (Widget child : getChildren()) {
            if (child instanceof MaterialCollectionItem) {
                child.getElement().getStyle().setCursor(Style.Cursor.POINTER);
                ((MaterialCollectionItem) child).addClickHandler(clickEvent -> SelectionEvent.fire(MaterialCollection.this, (MaterialCollectionItem) child));
            }
        }
    } else {
        removeHandler(selectHandler);
    }
}
 

public void testSelectionEvent() {
    MaterialNavSection widget = new MaterialNavSection();

    final boolean[] isSelectionEventFired = {false};
    widget.addSelectionHandler(selectionEvent -> isSelectionEventFired[0] = true);
    widget.fireEvent(new GwtEvent<SelectionHandler<?>>() {
        @Override
        public Type<SelectionHandler<?>> getAssociatedType() {
            return SelectionEvent.getType();
        }

        @Override
        protected void dispatch(SelectionHandler eventHandler) {
            eventHandler.onSelection(null);
        }
    });

    assertTrue(isSelectionEventFired[0]);
}
 

private ComboBox<VectorLayerInfo> initLayerCombo1() {
					
	VectorLayerProperties properties = GWT
			.create(VectorLayerProperties.class);

	layerStore1 = new ListStore<VectorLayerInfo>(properties.key());

	layerCombo1 = new ComboBox<VectorLayerInfo>(layerStore1,
			properties.name());
	layerCombo1.setEmptyText((UIMessages.INSTANCE.sbLayerComboEmptyText()));
	layerCombo1.setTypeAhead(true);
	layerCombo1.setTriggerAction(TriggerAction.ALL);
	layerCombo1.setForceSelection(true);
	layerCombo1.setEditable(false);
	layerCombo1.enableEvents();
	layerCombo1.setWidth(width);

	layerCombo1.addSelectionHandler(new SelectionHandler<VectorLayerInfo>() {
		@Override
		public void onSelection(SelectionEvent<VectorLayerInfo> event) {
			layerCombo1.setValue(event.getSelectedItem(), true);
		}
	});

	return layerCombo1;
}
 

private SelectionHandler<Widget> getTabPanelSelectionHandler() {
	return new SelectionHandler<Widget>() {

		@Override
		public void onSelection(SelectionEvent<Widget> event) {
			if (UIMessages.INSTANCE.empty().equals(getActiveTab())) {
				dataFormatField.setVisible(false);
			} else {
				dataFormatField.setVisible(true);
			}
			if (UIMessages.INSTANCE.wfs().equals(getActiveTab())) {
				vectorFormatCombo.setValue(VectorFormat.GML_FORMAT);
			} else {
				vectorFormatCombo.setValue(null);
			}
			
			if (UIMessages.INSTANCE.gitHubResponseTitle().equals(getActiveTab())) {					
				layerName.setEnabled(false);
			} else {
				layerName.setEnabled(true);
			}
		}
	};
}
 

public void select() {
    // Fire selection event
    SelectionEvent.fire(getTree(), this);

    List<MaterialTreeItem> treeItems = getTreeItems();
    if (!treeItems.isEmpty()) {
        for (MaterialTreeItem treeItem : treeItems) {
            if (hide) {
                treeItem.setVisible(false);
            } else {
                treeItem.setVisible(true);
            }
        }
        // Firing of events based on the status of the tree item
        if (hide) {
            CloseEvent.fire(getTree(), this);
            hide = false;
        } else {
            OpenEvent.fire(getTree(), this);
            hide = true;
        }
    }
}
 

protected void checkSelectionHandler(MaterialPopupMenu popupMenu) {
    final boolean[] isSelectionFired = {false};
    popupMenu.setEnabled(true);
    popupMenu.addSelectionHandler(selectionEvent -> isSelectionFired[0] = true);
    popupMenu.fireEvent(new GwtEvent<SelectionHandler<?>>() {
        @Override
        public Type<SelectionHandler<?>> getAssociatedType() {
            return SelectionEvent.getType();
        }

        @Override
        protected void dispatch(SelectionHandler<?> eventHandler) {
            eventHandler.onSelection(null);
        }
    });
    assertTrue(isSelectionFired[0]);
}
 

void initContentOracle() {
  contentOracle = new MultiWordSuggestOracle();

  contentSuggestBox = new SuggestBox(contentOracle);
  contentSuggestBox.getElement().setId("content-box");

  // Some initial content xml strings
  contentOracle.add("");
  contentOracle.add("abcd");

  contentSuggestBox.addSelectionHandler(new SelectionHandler<SuggestOracle.Suggestion>() {
    @Override public void onSelection(SelectionEvent<SuggestOracle.Suggestion> event) {
      setFromContentBox();
    }
  });

  String[] extra = extendSampleContent();
  if (extra != null) {
    for (String content : extra) {
      contentOracle.add(content);
    }
  }
}
 

void initContentOracle() {
  contentOracle = new MultiWordSuggestOracle();

  contentSuggestBox = new SuggestBox(contentOracle);
  contentSuggestBox.getElement().setId("content-box");

  // Some initial content xml strings
  contentOracle.add("");
  contentOracle.add("abcd");

  contentSuggestBox.addSelectionHandler(new SelectionHandler<SuggestOracle.Suggestion>() {
    @Override public void onSelection(SelectionEvent<SuggestOracle.Suggestion> event) {
      setFromContentBox();
    }
  });

  String[] extra = extendSampleContent();
  if (extra != null) {
    for (String content : extra) {
      contentOracle.add(content);
    }
  }
}
 

@Override
public void selectTab(final int index) {
    if (index < PAGE_LIMIT) {
        // visible pages
        flagSelected(prevSelectedIndex, false);
        super.selectTab(index);
        flagSelected(index, true);
        prevSelectedIndex = index;

        if (index == PAGE_LIMIT - 1 && offPageContainer.getSelectedDeck() == -1) {
            offPageContainer.selectDeck(0);
        }

    } else {
        // off page
        offPageContainer.selectDeck(offPageIndex(index));
        if (getSelectedIndex() == PAGE_LIMIT - 1) {
            SelectionEvent.fire(this, PAGE_LIMIT - 1);
        }
        tabs.lastTab().setText(offPageContainer.getTexts().get(offPageIndex(index)).getText());
        selectTab(PAGE_LIMIT - 1);
    }
}
 

/**
 * Folder Tree
 */
public FolderSelectTree() {
	tree = new Tree();
	rootItem.setHTML(Util.imageItemHTML("img/menuitem_childs.gif", "root_schema", "top"));
	rootItem.setStyleName("okm-TreeItem");
	rootItem.setUserObject(new GWTFolder());
	rootItem.setSelected(true);
	rootItem.setState(true);
	tree.setStyleName("okm-Tree");
	tree.addItem(rootItem);
	tree.addSelectionHandler(new SelectionHandler<TreeItem>() {
		@Override
		public void onSelection(SelectionEvent<TreeItem> event) {
			boolean refresh = true;
			TreeItem item = event.getSelectedItem();

			// Case that not refreshing tree and file browser ( right click )
			if (actualItem.equals(item)) {
				refresh = false;
			} else {
				// Disables actual item because on changing active node by
				// application this it's not changed automatically
				if (!actualItem.equals(item)) {
					actualItem.setSelected(false);
					actualItem = item;
				} else {
					refresh = false;
				}
			}

			if (refresh) {
				refresh(true);
			}
		}
	});
	actualItem = tree.getItem(0);
	initWidget(tree);
}
 

/**
 * Folder Tree
 */
public FolderSelectTree() {
	tree = new Tree();
	rootItem.setHTML(Util.imageItemHTML("img/menuitem_childs.gif", "root_schema", "top"));
	rootItem.setStyleName("okm-TreeItem");
	rootItem.setUserObject(new GWTFolder());
	rootItem.setSelected(true);
	rootItem.setState(true);
	tree.setStyleName("okm-Tree");
	tree.addItem(rootItem);
	tree.addSelectionHandler(new SelectionHandler<TreeItem>() {
		@Override
		public void onSelection(SelectionEvent<TreeItem> event) {
			boolean refresh = true;
			TreeItem item = event.getSelectedItem();

			// Case that not refreshing tree and file browser ( right click )
			if (actualItem.equals(item)) {
				refresh = false;
			} else {
				// Disables actual item because on changing active node by
				// application this it's not changed automatically
				if (!actualItem.equals(item)) {
					actualItem.setSelected(false);
					actualItem = item;
				} else {
					refresh = false;
				}
			}

			if (refresh) {
				refresh(true);
			}
		}
	});
	actualItem = tree.getItem(0);
	initWidget(tree);
}
 

protected void registerChildHandler(Widget child) {
    if (child instanceof MaterialTabItem) {
        MaterialTabItem item = (MaterialTabItem) child;
        item.getHandlerRegistry().clearHandlers();
        item.registerHandler(item.addMouseDownHandler(e -> SelectionEvent.fire(MaterialTab.this, getChildren().indexOf(child))));
    }
}
 

/**
 * Creates a new Menu.
 */
public Menu( final MenuItem[] menuItems, final Panel pageContainer ) {
	this.menuItems     = menuItems;
	this.pageContainer = pageContainer;
	
	for ( final MenuItem mi : menuItems )
		addTab( mi.getLabel() );
	
	addSelectionHandler( new SelectionHandler< Integer >() {
		@Override
		public void onSelection( final SelectionEvent< Integer > event ) {
			menuItems[ event.getSelectedItem() ].onActivate( Menu.this );
		}
	} );
}
 

private void createComboLayer(final ComboBox<VectorLayerInfo> combo,
		final String numCombo, final TextButton validateButton) {
	clearLayerComboBox(combo);
	combo.setTypeAhead(true);
	combo.setTriggerAction(TriggerAction.ALL);
	combo.setForceSelection(true);
	combo.setEditable(false);
	combo.enableEvents();
	combo.setWidth(WIDTH_COMBO_LAYER);
	combo.setId(numCombo);

	combo.addSelectionHandler(new SelectionHandler<VectorLayerInfo>() {
		@Override
		public void onSelection(SelectionEvent<VectorLayerInfo> event) {
			combo.setValue(event.getSelectedItem(), true);
			List<VectorLayerInfo> updatedLayers = removeLayer(event
					.getSelectedItem());
			if (COMBO1_ID.equals(combo.getId())) {
				updateCombo(LAYER_COMBO_2, LAYER_STORE_2, updatedLayers);
			} else {
				updateCombo(LAYER_COMBO_1, LAYER_STORE_1, updatedLayers);
			}
		}
	});
	
	validateButton.setToolTip(UIMessages.INSTANCE
			.descriptionValidationToolText());

	final HorizontalPanel horizontalGroup = getHorizontalPanel();
	horizontalGroup.add(combo);
	horizontalGroup.add(validateButton);

	panel.add(new Label(UIMessages.INSTANCE.layerLabelText(numCombo)));
	panel.add(horizontalGroup);
}
 

private void createGeoprocessAndDistanceField(final Geoprocesses spatialOperation) {
	spatialOperationComboBox = new GeoprocessComboBox(
			spatialOperation.getAll());
	spatialOperationComboBox.setWidth(WIDTH_SPATIAL_OPERATION_COMBO);
	clearSpatialOperationComboBox();				
	spatialOperationComboBox
			.addSelectionHandler(new SelectionHandler<Geoprocess>() {
				@Override
				public void onSelection(SelectionEvent<Geoprocess> event) {
					spatialOperationComboBox.setValue(
							event.getSelectedItem(), true);

					if (event.getSelectedItem() instanceof BufferGeoprocess) {
						LAYER_COMBO_2.setValue(null);
						LAYER_COMBO_2.setEnabled(false);
						distanceTextField.setText("0");
						distanceTextField.setEnabled(true);
						distanceTextField.setVisible(true);
					} else {							
						LAYER_COMBO_2.setEnabled(true);
						distanceTextField.setText("");
						distanceTextField.setEnabled(false);
						distanceTextField.setVisible(false);
					}
				}
			});

	initDistanceTextField();
	final HorizontalPanel horizontalGroup = getHorizontalPanel();
	horizontalGroup.add(spatialOperationComboBox);
	horizontalGroup.add(distanceTextField);
	panel.add(horizontalGroup);
}
 

private void createSelectionHandler() {
	addSelectionHandler(new SelectionHandler<Geoprocess>() {
		@Override
		public void onSelection(SelectionEvent<Geoprocess> event) {
			setValue(event.getSelectedItem(), true);
		}
	});
}
 

private void createSelectionHandler() {
	addSelectionHandler(new SelectionHandler<VectorFormat>() {
		@Override
		public void onSelection(SelectionEvent<VectorFormat> event) {
			setValue(event.getSelectedItem(), true);
		}
	});
}
 

private SelectionHandler<VectorFormat> getVectorComboSelectionHandler() {
	return new SelectionHandler<VectorFormat>() {
		@Override
		public void onSelection(SelectionEvent<VectorFormat> event) {
				epsgCombo.enable();
		}
	};
}
 

@UiHandler({"dpFile", "dpNew", "dpView", "dpEdit", "dpFormat"})
void onSelectionFileDropdown(SelectionEvent<Widget> selection) {
    if(selection.getSelectedItem() instanceof MaterialLink){
        MaterialToast.fireToast("Triggered : " + ((MaterialLink)selection.getSelectedItem()).getText());
    }else if(selection.getSelectedItem() instanceof MaterialCheckBox){
        MaterialToast.fireToast("Checked : " + ((MaterialCheckBox)selection.getSelectedItem()).getText());
    }
}
 

@UiHandler("dpMode")
void onSelectionMode(SelectionEvent<Widget> selection) {
    for(Widget w : dpMode.getItems()){
        if(w instanceof MaterialCheckBox){
            ((MaterialCheckBox) w).setValue(false);
        }
    }
    if(selection.getSelectedItem() instanceof MaterialCheckBox){
        ((MaterialCheckBox) selection.getSelectedItem()).setValue(true);
        MaterialToast.fireToast("Checked : " + ((MaterialCheckBox) selection.getSelectedItem()).getText());
    }
}
 

@Override
public void load() {
    if (value != null) {
        setId(DOM.createUniqueId());
        options.id = "#" + getId();

        JsTable.jsontotable(value, options);

        $("tr").mousedown((e, handler) -> {
            SelectionEvent.fire(JsonTable.this, $(e.target).parent().asElement());
            return true;
        });
    }
}
 

/**
 * Called when a step title is clicked.
 */
@Override
public void onSelection(SelectionEvent<MaterialStep> event) {
    if (stepSkippingAllowed) {
        if (event.getSelectedItem().getState() == State.SUCCESS) {
            goToStep(event.getSelectedItem());
        }
    }
}
 

@Override
protected void onLoad() {
    super.onLoad();

    ClickHandler handler = event -> {
        if (isEnabled() && isVisible()) {
            SelectionEvent.fire(MaterialStep.this, MaterialStep.this);
        }
    };
    registerHandler(header.addClickHandler(handler));
    registerHandler(divTitle.addClickHandler(handler));
    registerHandler(divDescription.addClickHandler(handler));
}
 

@Override
public HandlerRegistration addSelectionHandler(final SelectionHandler<MaterialStep> handler) {
    return this.addHandler(new SelectionHandler<MaterialStep>() {
        @Override
        public void onSelection(SelectionEvent<MaterialStep> event) {
            if (isEnabled()) {
                handler.onSelection(event);
            }
        }
    }, SelectionEvent.getType());
}
 

public void testSelectionHandler() {
    Integer SELECTED_ITEM = 1;
    GroupToggleButton<Integer> button = getWidget();

    final boolean[] selectionFired = {false};
    button.addSelectionHandler((SelectionEvent<Integer> selectionEvent) -> {
        assertEquals(SELECTED_ITEM, selectionEvent.getSelectedItem());
        selectionFired[0] = true;
    });

    SelectionEvent.fire(button, SELECTED_ITEM);
    assertTrue(selectionFired[0]);
}
 

private Tree initNavigationTree() {
    Tree navTree = new Tree();

    List<GalleryTreeNode> mainNodes = galleryTree.getMainNodes();
    populateNavigationTree(mainNodes, navTree);

    navTree.addSelectionHandler(new SelectionHandler<TreeItem>() {
        public void onSelection(SelectionEvent<TreeItem> event) {
            TreeItem ti = event.getSelectedItem();
            GalleryTreeNode node = (GalleryTreeNode) ti.getUserObject();
            treeItemClicked(ti, node);
        }
    });
    return navTree;
}
 

protected void selectItem(Item item, int idx) {
  if (item != selected) {
    if (selected != null) {
      selected.setSelected(false);
    }
    selected = item;
    if (selected != null) {
      selected.setSelected(true);
    }
    SelectionEvent.fire(this, idx);
  }
}
 

/**
 * Selects the tab with the specified text. If there's no tab with the specified text, the selected tab remains
 * unchanged. If there's more than one tab with the specified text, the first one will be selected.
 *
 * @param text
 */
@Override
public void selectTab(final String text) {
    for (int i = 0; i < tabs.size(); i++) {
        if (text.equals(tabs.get(i).getText())) {
            selectTab(i);
            return;
        }
    }

    // not found in visible tabs, should be in off-page
    for (OffPageText opt : offPageContainer.getTexts()) {
        if (text.equals(opt.getText())) {
            if (opt.getIndex() == 0) {
                // the first off-page needs special treatment
                offPageContainer.selectDeck(opt.getIndex());
                if (getSelectedIndex() == PAGE_LIMIT - 1) {
                    SelectionEvent.fire(this, PAGE_LIMIT - 1);
                }
                tabs.lastTab().setText(opt.getText());
                selectTab(PAGE_LIMIT - 1);
            } else {
                selectTab(PAGE_LIMIT - 1 + opt.getIndex());
            }
        }
    }
}
 

@UiHandler("foodDropDown")
void handleDropdown(SelectionEvent<Widget> callback) {
	MaterialToast.fireToast(
			"Selected : " + ((MaterialLink) callback.getSelectedItem())
					.getText());
}