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/*******************************************************************************
* Copyright (c) 2006, 2008 Oracle. 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
*
* Contributors: Oracle. - initial API and implementation
*******************************************************************************/
package org.eclipse.jpt.ui.internal.views.structure;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jpt.core.JpaFile;
import org.eclipse.jpt.ui.JpaPlatformUi;
import org.eclipse.jpt.ui.JptUiPlugin;
import org.eclipse.jpt.ui.internal.JptUiMessages;
import org.eclipse.jpt.ui.internal.selection.JpaSelection;
import org.eclipse.jpt.ui.internal.selection.JpaSelectionManager;
import org.eclipse.jpt.ui.internal.selection.SelectionManagerFactory;
import org.eclipse.jpt.ui.structure.JpaStructureProvider;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.part.IPage;
import org.eclipse.ui.part.MessagePage;
import org.eclipse.ui.part.PageBook;
import org.eclipse.ui.part.PageBookView;
public class JpaStructureView extends PageBookView
{
public JpaStructureView() {
super();
}
@Override
public void createPartControl(Composite parent) {
super.createPartControl(parent);
JpaSelectionManager selectionManager =
SelectionManagerFactory.getSelectionManager(getViewSite().getWorkbenchWindow());
selectionManager.register(this);
select(selectionManager.getCurrentSelection());
}
@Override
protected boolean isImportant(IWorkbenchPart part) {
return part instanceof IEditorPart;
}
@Override
protected IWorkbenchPart getBootstrapPart() {
IWorkbenchPage page = getSite().getPage();
if (page != null) {
return page.getActiveEditor();
}
return null;
}
@Override
protected IPage createDefaultPage(PageBook book) {
MessagePage page = new MessagePage();
initPage(page);
page.createControl(book);
page.setMessage(JptUiMessages.JpaStructureView_structureNotAvailable);
return page;
}
@Override
protected PageRec doCreatePage(IWorkbenchPart part) {
JpaStructureProvider structureProvider =
structureProvider(part);
if (structureProvider != null) {
JpaStructurePage page = new JpaStructurePage(this, structureProvider);
initPage(page);
page.createControl(getPageBook());
return new PageRec(part, page);
}
return null;
}
private JpaStructureProvider structureProvider(IWorkbenchPart part) {
JpaFile jpaFile =
(JpaFile) part.getAdapter(JpaFile.class);
if (jpaFile == null) {
return null;
}
JpaPlatformUi platformUi = JptUiPlugin.getPlugin().jpaPlatformUi(jpaFile.getJpaProject().getJpaPlatform());
return platformUi.buildStructureProvider(jpaFile);
}
@Override
protected void doDestroyPage(IWorkbenchPart part, PageRec pageRecord) {
JpaStructurePage page = (JpaStructurePage) pageRecord.page;
removeSelectionChangedListener(page);
page.dispose();
pageRecord.dispose();
}
public JpaSelection getJpaSelection() {
if (getCurrentPage() != getDefaultPage()) {
return ((JpaStructurePage) getCurrentPage()).getJpaSelection();
}
else {
return JpaSelection.NULL_SELECTION;
}
}
public void select(JpaSelection newSelection) {
// correct page should be shown
if (getCurrentPage() != getDefaultPage()) {
((JpaStructurePage) getCurrentPage()).select(newSelection);
}
}
public void addSelectionChangedListener(ISelectionChangedListener listener) {
getSelectionProvider().addSelectionChangedListener(listener);
}
public void removeSelectionChangedListener(ISelectionChangedListener listener) {
getSelectionProvider().removeSelectionChangedListener(listener);
}
}
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