/*******************************************************************************
* 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.editor;
import com.google.gdt.eclipse.designer.model.widgets.support.GwtState;
import com.google.gdt.eclipse.designer.uibinder.parser.UiBinderContext;
import com.google.gdt.eclipse.designer.uibinder.parser.UiBinderParser;
import org.eclipse.wb.internal.core.xml.editor.XmlDesignPage;
import org.eclipse.wb.internal.core.xml.model.XmlObjectInfo;
/**
* {@link XmlDesignPage} for GWT UiBinder.
*
* @author scheglov_ke
* @coverage GWT.UiBinder.editor
*/
public final class UiBinderDesignPage extends XmlDesignPage {
private GwtState m_state;
private ClassLoader m_classLoader;
////////////////////////////////////////////////////////////////////////////
//
// Render
//
////////////////////////////////////////////////////////////////////////////
@Override
protected boolean shouldShowProgress() {
return m_state == null;
}
@Override
protected XmlObjectInfo parse() throws Exception {
// prepare UiBinderContext
UiBinderContext context;
if (m_state == null) {
context = new UiBinderContext(m_file, m_document);
} else {
context = new UiBinderContext(m_state, m_classLoader, m_file, m_document);
}
// do parse
try {
UiBinderParser parser = new UiBinderParser(context);
return parser.parse();
} finally {
// remember GwtState, even if parsing failed, GwtState may be created
if (m_state == null) {
m_state = context.getState();
m_classLoader = context.getClassLoader();
}
}
}
////////////////////////////////////////////////////////////////////////////
//
// Life cycle
//
////////////////////////////////////////////////////////////////////////////
@Override
protected void disposeContext(boolean force) {
super.disposeContext(force);
// dispose GWTState
if (force && m_state != null) {
m_state.dispose();
m_state = null;
m_classLoader = null;
}
}
}