/*******************************************************************************
* Copyright 2011 Google Inc. All Rights Reserved.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* 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.gdt.eclipse.designer.model.widgets;
import com.google.gdt.eclipse.designer.model.widgets.cell.CellListInfo;
import org.eclipse.wb.core.model.JavaInfo;
import org.eclipse.wb.core.model.ObjectInfo;
import org.eclipse.wb.core.model.association.ConstructorChildAssociation;
import org.eclipse.wb.core.model.broadcast.JavaEventListener;
import org.eclipse.wb.core.model.broadcast.ObjectInfoChildGraphical;
import org.eclipse.wb.internal.core.model.JavaInfoUtils;
import org.eclipse.wb.internal.core.model.creation.ConstructorCreationSupport;
import org.eclipse.wb.internal.core.model.creation.CreationSupport;
import org.eclipse.wb.internal.core.model.description.ComponentDescription;
import org.eclipse.wb.internal.core.model.variable.EmptyVariableSupport;
import org.eclipse.wb.internal.core.utils.ast.AstEditor;
import org.eclipse.wb.internal.core.utils.ast.AstNodeUtils;
import org.eclipse.wb.internal.core.utils.ast.DomGenerics;
import org.eclipse.jdt.core.dom.ClassInstanceCreation;
import org.eclipse.jdt.core.dom.Expression;
import java.util.List;
/**
* Model for <code>com.google.gwt.user.client.ui.ValuePicker</code>.
*
* @author sablin_aa
* @coverage gwt.model
*/
public class ValuePickerInfo extends CompositeInfo {
private final ValuePickerInfo m_this = this;
////////////////////////////////////////////////////////////////////////////
//
// Constructor
//
////////////////////////////////////////////////////////////////////////////
public ValuePickerInfo(AstEditor editor,
ComponentDescription description,
CreationSupport creationSupport) throws Exception {
super(editor, description, creationSupport);
installChildCellListListiners();
}
////////////////////////////////////////////////////////////////////////////
//
// Events
//
////////////////////////////////////////////////////////////////////////////
private void installChildCellListListiners() {
// create CellList info
addBroadcastListener(new JavaEventListener() {
@Override
public void addAfter(JavaInfo parent, JavaInfo child) throws Exception {
if (child == m_this && getCellList() == null) {
createChildCellList();
}
}
});
// CellList should not be visible on design canvas, because we want that user click and move picker.
addBroadcastListener(new ObjectInfoChildGraphical() {
public void invoke(ObjectInfo object, boolean[] visible) throws Exception {
if (object == getCellList()) {
visible[0] = false;
}
}
});
}
private void createChildCellList() throws Exception {
if (!(getCreationSupport() instanceof ConstructorCreationSupport)) {
return;
}
// prepare expression
ClassInstanceCreation creation =
((ConstructorCreationSupport) getCreationSupport()).getCreation();
Expression cellListExpression = DomGenerics.arguments(creation).get(0);
if (!AstNodeUtils.isSuccessorOf(
AstNodeUtils.getTypeBinding(cellListExpression),
"com.google.gwt.user.cellview.client.CellList")) {
return;
}
// create info
ConstructorCreationSupport creationSupport = new ConstructorCreationSupport();
JavaInfo cellList =
JavaInfoUtils.createJavaInfo(
getEditor(),
"com.google.gwt.user.cellview.client.CellList",
creationSupport);
// configure info
cellList.setVariableSupport(new EmptyVariableSupport(cellList, cellListExpression));
creationSupport.add_setSourceExpression(cellListExpression);
// add info as child
cellList.setAssociation(new ConstructorChildAssociation());
addChild(cellList);
}
////////////////////////////////////////////////////////////////////////////
//
// Access
//
////////////////////////////////////////////////////////////////////////////
public CellListInfo getCellList() {
CellListInfo cellList;
List<CellListInfo> children = getChildren(CellListInfo.class);
if (children.isEmpty()) {
cellList = null;
} else {
cellList = children.get(0);
}
return cellList;
}
}