/*******************************************************************************
* 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.uibinder.model.widgets;
import com.google.gdt.eclipse.designer.uibinder.model.widgets.IsWidgetWrappedInfo.IsWidgetWrappedCreationSupport;
import org.eclipse.wb.internal.core.model.presentation.IObjectPresentation;
import org.eclipse.wb.internal.core.utils.reflect.ReflectionUtils;
import org.eclipse.wb.internal.core.utils.xml.DocumentElement;
import org.eclipse.wb.internal.core.xml.model.EditorContext;
import org.eclipse.wb.internal.core.xml.model.IWrapperInfo;
import org.eclipse.wb.internal.core.xml.model.UseModelIfNotAlready;
import org.eclipse.wb.internal.core.xml.model.XmlObjectInfo;
import org.eclipse.wb.internal.core.xml.model.XmlObjectPresentation;
import org.eclipse.wb.internal.core.xml.model.broadcast.XmlObjectSetObjectAfter;
import org.eclipse.wb.internal.core.xml.model.creation.CreationSupport;
import org.eclipse.wb.internal.core.xml.model.creation.ElementCreationSupport;
import org.eclipse.wb.internal.core.xml.model.description.ComponentDescription;
import org.eclipse.wb.internal.core.xml.model.description.ComponentDescriptionHelper;
/**
* Model for <code>com.google.gwt.user.client.ui.IsWidget</code> in GWT UiBinder.
*
* @author scheglov_ke
* @coverage GWT.UiBinder.model
*/
@UseModelIfNotAlready(WidgetInfo.class)
public final class IsWidgetInfo extends XmlObjectInfo implements IWrapperInfo {
private final IsWidgetWrappedInfo m_widget;
////////////////////////////////////////////////////////////////////////////
//
// Constructor
//
////////////////////////////////////////////////////////////////////////////
public IsWidgetInfo(EditorContext context,
ComponentDescription description,
CreationSupport creationSupport) throws Exception {
super(context, description, creationSupport);
// prepare CreationSupport
DocumentElement element = creationSupport.getElement();
if (element == null) {
setCreationSupport(new ElementCreationSupport());
creationSupport = new CreationSupport() {
@Override
public void addElement(DocumentElement parent, int index) throws Exception {
getCreationSupport().addElement(parent, index);
DocumentElement newElement = getCreationSupport().getElement();
setCreationSupport(new ElementCreationSupport(newElement));
m_widget.setCreationSupport(new IsWidgetWrappedCreationSupport(newElement));
}
};
} else {
setCreationSupport(new ElementCreationSupport(element));
creationSupport = new IsWidgetWrappedCreationSupport(element);
}
// create Widget
{
Class<?> widgetClass =
context.getClassLoader().loadClass("com.google.gwt.user.client.ui.Widget");
ComponentDescription widgetDescription =
ComponentDescriptionHelper.getDescription(context, widgetClass);
m_widget = new IsWidgetWrappedInfo(context, widgetDescription, creationSupport, this);
}
// bind IsWidget to Widget
m_widget.addChild(this);
addBroadcastListener(new XmlObjectSetObjectAfter() {
public void invoke(XmlObjectInfo target, Object o) throws Exception {
if (target == IsWidgetInfo.this) {
Object widget = ReflectionUtils.invokeMethod(o, "asWidget()");
m_widget.setObject(widget);
}
}
});
}
////////////////////////////////////////////////////////////////////////////
//
// Object
//
////////////////////////////////////////////////////////////////////////////
@Override
public String toString() {
return "IsWidget";
}
////////////////////////////////////////////////////////////////////////////
//
// IWrapperInfo
//
////////////////////////////////////////////////////////////////////////////
public WidgetInfo getWrapped() throws Exception {
return m_widget;
}
////////////////////////////////////////////////////////////////////////////
//
// Presentation
//
////////////////////////////////////////////////////////////////////////////
@Override
public IObjectPresentation getPresentation() {
return new XmlObjectPresentation(this) {
@Override
public boolean isVisible() throws Exception {
return false;
}
};
}
}