/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 org.apache.directory.studio.schemaeditor.controller.actions;
import org.apache.directory.shared.ldap.schema.SchemaObject;
import org.apache.directory.studio.schemaeditor.PluginConstants;
import org.apache.directory.studio.schemaeditor.PluginUtils;
import org.apache.directory.studio.schemaeditor.view.ViewUtils;
import org.apache.directory.studio.schemaeditor.view.editors.attributetype.AttributeTypeEditor;
import org.apache.directory.studio.schemaeditor.view.editors.objectclass.ObjectClassEditor;
import org.apache.directory.studio.schemaeditor.view.views.HierarchyView;
import org.apache.directory.studio.schemaeditor.view.views.SchemaView;
import org.apache.directory.studio.schemaeditor.view.wrappers.AttributeTypeWrapper;
import org.apache.directory.studio.schemaeditor.view.wrappers.ObjectClassWrapper;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
/**
* This action opens the selected element in the Viewer in the Hierarchy View.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
public class OpenTypeHierarchyAction extends Action implements IWorkbenchWindowActionDelegate
{
/** The associated viewer */
private TreeViewer viewer;
/**
* Creates a new instance of DeleteSchemaElementAction.
*/
public OpenTypeHierarchyAction( TreeViewer viewer )
{
super( Messages.getString( "OpenTypeHierarchyAction.OpenTypeAction" ) ); //$NON-NLS-1$
setToolTipText( Messages.getString( "OpenTypeHierarchyAction.OpenTypeToolTip" ) ); //$NON-NLS-1$
setId( PluginConstants.CMD_OPEN_TYPE_HIERARCHY );
setActionDefinitionId( PluginConstants.CMD_OPEN_TYPE_HIERARCHY );
setEnabled( true );
this.viewer = viewer;
this.viewer.addSelectionChangedListener( new ISelectionChangedListener()
{
public void selectionChanged( SelectionChangedEvent event )
{
StructuredSelection selection = ( StructuredSelection ) event.getSelection();
if ( selection.size() == 1 )
{
Object obj = selection.getFirstElement();
if ( obj instanceof AttributeTypeWrapper )
{
setEnabled( true );
}
else if ( obj instanceof ObjectClassWrapper )
{
setEnabled( true );
}
else
{
setEnabled( false );
}
}
else
{
setEnabled( false );
}
}
} );
}
/* (non-Javadoc)
* @see org.eclipse.jface.action.Action#run()
*/
public void run()
{
IWorkbenchPart part = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActivePart();
if ( part instanceof SchemaView )
{
openTypeHierarchyFromTreeViewer( ( ( SchemaView ) part ).getViewer() );
}
else if ( part instanceof HierarchyView )
{
openTypeHierarchyFromTreeViewer( ( ( HierarchyView ) part ).getViewer() );
}
else if ( part instanceof AttributeTypeEditor )
{
openTypeHierarchy( ( ( AttributeTypeEditor ) part ).getOriginalAttributeType() );
}
else if ( part instanceof ObjectClassEditor )
{
openTypeHierarchy( ( ( ObjectClassEditor ) part ).getOriginalObjectClass() );
}
}
/**
* Gets the selection of the TreeViewer and opens the selection in the Hierarchy View.
*
* @param treeViewer
* the Tree Viewer
*/
private void openTypeHierarchyFromTreeViewer( TreeViewer treeViewer )
{
Object firstElement = ( ( StructuredSelection ) treeViewer.getSelection() ).getFirstElement();
if ( firstElement instanceof ObjectClassWrapper )
{
ObjectClassWrapper ocw = ( ObjectClassWrapper ) firstElement;
openTypeHierarchy( ocw.getObjectClass() );
}
else if ( firstElement instanceof AttributeTypeWrapper )
{
AttributeTypeWrapper atw = ( AttributeTypeWrapper ) firstElement;
openTypeHierarchy( atw.getAttributeType() );
}
}
/**
* Opens the Type Hierarchy with the given element.
*
* @param element
* the element to open
*/
private void openTypeHierarchy( SchemaObject element )
{
HierarchyView view = ( HierarchyView ) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
.findView( HierarchyView.ID );
if ( view == null )
{
try
{
view = ( HierarchyView ) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().showView(
HierarchyView.ID );
}
catch ( PartInitException e )
{
PluginUtils.logError( Messages.getString( "OpenTypeHierarchyAction.ErrorOpeningView" ), e ); //$NON-NLS-1$
ViewUtils
.displayErrorMessageBox(
Messages.getString( "OpenTypeHierarchyAction.Error" ), Messages.getString( "OpenTypeHierarchyAction.ErrorOpeningView" ) ); //$NON-NLS-1$ //$NON-NLS-2$
}
}
if ( view != null )
{
view.setInput( element );
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().bringToTop( view );
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
*/
public void run( IAction action )
{
run();
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
*/
public void dispose()
{
// Nothing to do
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.IWorkbenchWindow)
*/
public void init( IWorkbenchWindow window )
{
// Nothing to do
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged( IAction action, ISelection selection )
{
// Nothing to do
}
}