| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.sample.showcase.client.content.cell; |
| |
| import com.google.gwt.core.client.GWT; |
| import com.google.gwt.core.client.RunAsyncCallback; |
| import com.google.gwt.i18n.client.Constants; |
| import com.google.gwt.sample.showcase.client.ContentWidget; |
| import com.google.gwt.sample.showcase.client.ShowcaseAnnotations.ShowcaseData; |
| import com.google.gwt.sample.showcase.client.ShowcaseAnnotations.ShowcaseRaw; |
| import com.google.gwt.sample.showcase.client.ShowcaseAnnotations.ShowcaseSource; |
| import com.google.gwt.sample.showcase.client.content.cell.ContactDatabase.ContactInfo; |
| import com.google.gwt.uibinder.client.UiBinder; |
| import com.google.gwt.uibinder.client.UiField; |
| import com.google.gwt.user.cellview.client.CellTree; |
| import com.google.gwt.user.client.rpc.AsyncCallback; |
| import com.google.gwt.user.client.ui.Label; |
| import com.google.gwt.user.client.ui.Widget; |
| import com.google.gwt.view.client.MultiSelectionModel; |
| import com.google.gwt.view.client.SelectionChangeEvent; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Example file. |
| */ |
| @ShowcaseRaw({ |
| "ContactDatabase.java", "ContactTreeViewModel.java", "CwCellTree.ui.xml"}) |
| public class CwCellTree extends ContentWidget { |
| |
| /** |
| * The UiBinder interface used by this example. |
| */ |
| @ShowcaseSource |
| interface Binder extends UiBinder<Widget, CwCellTree> { |
| } |
| |
| /** |
| * The constants used in this Content Widget. |
| */ |
| @ShowcaseSource |
| public static interface CwConstants extends Constants { |
| String cwCellTreeDescription(); |
| |
| String cwCellTreeName(); |
| } |
| |
| /** |
| * The CellTree. |
| */ |
| @ShowcaseData |
| @UiField(provided = true) |
| CellTree cellTree; |
| |
| /** |
| * The label that shows selected names. |
| */ |
| @ShowcaseData |
| @UiField |
| Label selectedLabel; |
| |
| /** |
| * Constructor. |
| * |
| * @param constants the constants |
| */ |
| public CwCellTree(CwConstants constants) { |
| super(constants.cwCellTreeName(), constants.cwCellTreeDescription(), false, |
| "ContactDatabase.java", "ContactTreeViewModel.java", |
| "CwCellTree.ui.xml"); |
| } |
| |
| /** |
| * Initialize this example. |
| */ |
| @ShowcaseSource |
| @Override |
| public Widget onInitialize() { |
| final MultiSelectionModel<ContactInfo> selectionModel = |
| new MultiSelectionModel<ContactInfo>(ContactDatabase.ContactInfo.KEY_PROVIDER); |
| selectionModel.addSelectionChangeHandler( |
| new SelectionChangeEvent.Handler() { |
| public void onSelectionChange(SelectionChangeEvent event) { |
| StringBuilder sb = new StringBuilder(); |
| boolean first = true; |
| List<ContactInfo> selected = new ArrayList<ContactInfo>( |
| selectionModel.getSelectedSet()); |
| Collections.sort(selected); |
| for (ContactInfo value : selected) { |
| if (first) { |
| first = false; |
| } else { |
| sb.append(", "); |
| } |
| sb.append(value.getFullName()); |
| } |
| selectedLabel.setText(sb.toString()); |
| } |
| }); |
| |
| CellTree.Resources res = GWT.create(CellTree.BasicResources.class); |
| cellTree = new CellTree( |
| new ContactTreeViewModel(selectionModel), null, res); |
| cellTree.setAnimationEnabled(true); |
| |
| // Create the UiBinder. |
| Binder uiBinder = GWT.create(Binder.class); |
| Widget widget = uiBinder.createAndBindUi(this); |
| return widget; |
| } |
| |
| @Override |
| protected void asyncOnInitialize(final AsyncCallback<Widget> callback) { |
| GWT.runAsync(CwCellTree.class, new RunAsyncCallback() { |
| |
| public void onFailure(Throwable caught) { |
| callback.onFailure(caught); |
| } |
| |
| public void onSuccess() { |
| callback.onSuccess(onInitialize()); |
| } |
| }); |
| } |
| } |