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/*
* Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) and others.
* 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:
* Victor Roldan Betancort - initial API and implementation
* Eike Stepper - maintenance
*/
package org.eclipse.emf.cdo.ui;
import org.eclipse.emf.cdo.internal.ui.CDOEditorInputImpl;
import org.eclipse.emf.cdo.internal.ui.bundle.OM;
import org.eclipse.emf.cdo.internal.ui.editor.CDOEditor;
import org.eclipse.emf.cdo.view.CDOView;
import org.eclipse.net4j.util.ObjectUtil;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import java.util.ArrayList;
import java.util.List;
/**
* Some utility methods to cope with CDOEditor and CDOEditorInput
*
* @author Victor Roldan Betancort
* @since 2.0
*/
public final class CDOEditorUtil
{
private CDOEditorUtil()
{
}
/**
* Returns an implementation of CDOEditorInput interface
*/
public static CDOEditorInput createCDOEditorInput(CDOView view, String resourcePath, boolean viewOwned)
{
return new CDOEditorInputImpl(view, resourcePath, viewOwned);
}
/**
* Opens the specified resource in CDOEditor
*
* @param page
* The page in which the editor will be open
* @param view
* the CDOView that will be used to access the resource
* @param resourcePath
* absolute path to the resource in the repository
*/
public static void openEditor(final IWorkbenchPage page, final CDOView view, final String resourcePath)
{
Display display = page.getWorkbenchWindow().getShell().getDisplay();
display.asyncExec(new Runnable()
{
public void run()
{
try
{
IEditorReference[] references = findEditor(page, view, resourcePath);
if (references.length != 0)
{
IEditorPart editor = references[0].getEditor(true);
page.activate(editor);
}
else
{
IEditorInput input = CDOEditorUtil.createCDOEditorInput(view, resourcePath, false);
page.openEditor(input, CDOEditor.EDITOR_ID);
}
}
catch (Exception ex)
{
OM.LOG.error(ex);
}
}
});
}
/**
* Returns references to possibly opened instances of CDOEditor with certain CDOView and resource
*
* @param page
* The page where to search for opened editors
* @param view
* The editors to find are using the specified CDOView
* @param resourcePath
* The editors are editing the CDOResource specified with this path
*/
public static IEditorReference[] findEditor(IWorkbenchPage page, CDOView view, String resourcePath)
{
List<IEditorReference> result = new ArrayList<IEditorReference>();
IEditorReference[] editorReferences = page.getEditorReferences();
for (IEditorReference editorReference : editorReferences)
{
try
{
if (ObjectUtil.equals(editorReference.getId(), CDOEditor.EDITOR_ID))
{
IEditorInput editorInput = editorReference.getEditorInput();
if (editorInput instanceof CDOEditorInput)
{
CDOEditorInput cdoInput = (CDOEditorInput)editorInput;
if (cdoInput.getView() == view)
{
if (resourcePath == null || ObjectUtil.equals(cdoInput.getResourcePath(), resourcePath))
{
result.add(editorReference);
}
}
}
}
}
catch (PartInitException ex)
{
OM.LOG.error(ex);
}
}
return result.toArray(new IEditorReference[result.size()]);
}
/**
* Refreshes all editor's viewers that are using certain CDOView.
*
* @param page
* the IWorkbenchPage where CDOEditor is opened
* @param view
* instance of CDOView our editors are using
*/
public static void refreshEditors(IWorkbenchPage page, CDOView view)
{
IEditorReference[] references = findEditor(page, view, null);
for (IEditorReference reference : references)
{
CDOEditor editor = (CDOEditor)reference.getEditor(false);
if (editor != null)
{
editor.refreshViewer(null);
}
}
}
}
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