/*******************************************************************************
* 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.gwtext.model.widgets;
import com.google.common.collect.Maps;
import com.google.gdt.eclipse.designer.model.widgets.WidgetInfo;
import org.eclipse.wb.core.model.JavaInfo;
import org.eclipse.wb.core.model.broadcast.JavaEventListener;
import org.eclipse.wb.internal.core.model.JavaInfoUtils;
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.util.ScriptUtils;
import org.eclipse.wb.internal.core.model.util.StackContainerSupport;
import org.eclipse.wb.internal.core.utils.ast.AstEditor;
import org.eclipse.wb.internal.core.utils.jdt.core.CodeUtils;
import org.eclipse.wb.internal.core.utils.reflect.ReflectionUtils;
import java.util.List;
import java.util.Map;
/**
* Model for <code>TabPanel</code>.
*
* @author scheglov_ke
* @coverage GWTExt.model
*/
public final class TabPanelInfo extends ContainerInfo {
private final StackContainerSupport<WidgetInfo> m_stackContainer =
new StackContainerSupport<WidgetInfo>(this) {
@Override
protected List<WidgetInfo> getChildren() {
return getChildrenWidgets();
}
};
////////////////////////////////////////////////////////////////////////////
//
// Constructor
//
////////////////////////////////////////////////////////////////////////////
public TabPanelInfo(AstEditor editor,
ComponentDescription description,
CreationSupport creationSupport) throws Exception {
super(editor, description, creationSupport);
addBroadcastListener(new JavaEventListener() {
@Override
public void bindComponents(List<JavaInfo> components) throws Exception {
removeBroadcastListener(this);
ensureTabsRendered();
}
});
}
////////////////////////////////////////////////////////////////////////////
//
// Refresh
//
////////////////////////////////////////////////////////////////////////////
@Override
protected void refresh_afterCreate() throws Exception {
super.refresh_afterCreate();
ReflectionUtils.invokeMethod(getObject(), "setActiveTab(int)", getActiveIndex());
}
/**
* We ask elements for all components, but <code>TabPanel</code> renders component only when its
* tab becomes visible. So, we should force rendering.
*/
private void ensureTabsRendered() throws Exception {
ClassLoader classLoader = JavaInfoUtils.getClassLoader(this);
String script =
CodeUtils.getSource(
"count = tabPanel.getItems().length;",
"for (i = 0; i < count; i++) {",
" tabPanel.setActiveTab(i);",
"}");
Map<String, Object> variables = Maps.newTreeMap();
variables.put("tabPanel", getObject());
ScriptUtils.evaluate(classLoader, script, variables);
}
////////////////////////////////////////////////////////////////////////////
//
// Access
//
////////////////////////////////////////////////////////////////////////////
public int getActiveIndex() {
WidgetInfo activeWidget = m_stackContainer.getActive();
return activeWidget != null ? getChildrenWidgets().indexOf(activeWidget) : 0;
}
}