/*
* 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.ldapservers.views;
import org.apache.directory.studio.ldapservers.LdapServersManager;
import org.apache.directory.studio.ldapservers.LdapServersManagerListener;
import org.apache.directory.studio.ldapservers.LdapServersPluginConstants;
import org.apache.directory.studio.ldapservers.actions.DeleteAction;
import org.apache.directory.studio.ldapservers.actions.NewServerAction;
import org.apache.directory.studio.ldapservers.actions.OpenConfigurationAction;
import org.apache.directory.studio.ldapservers.actions.PropertiesAction;
import org.apache.directory.studio.ldapservers.actions.RenameAction;
import org.apache.directory.studio.ldapservers.actions.StartAction;
import org.apache.directory.studio.ldapservers.actions.StopAction;
import org.apache.directory.studio.ldapservers.model.LdapServer;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.commands.ActionHandler;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
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.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.IPartListener2;
import org.eclipse.ui.IViewSite;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.IWorkbenchPartReference;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.commands.ICommandService;
import org.eclipse.ui.contexts.IContextActivation;
import org.eclipse.ui.contexts.IContextService;
import org.eclipse.ui.part.ViewPart;
/**
* This class implements the Servers view.
* <p>
* It displays the list of Apache Directory Servers.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public class ServersView extends ViewPart
{
/** The ID of the view */
// public static final String ID = ApacheDsPluginConstants.VIEW_SERVERS_VIEW; // TODO
/** The tree*/
private Tree tree;
/** The table viewer */
private ServersTableViewer tableViewer;
/** The view instance */
private ServersView instance;
/** Token used to activate and deactivate shortcuts in the view */
private IContextActivation contextActivation;
private static final String TAG_COLUMN_WIDTH = "columnWidth"; //$NON-NLS-1$
protected int[] columnWidths;
// Actions
private NewServerAction newServer;
private OpenConfigurationAction openConfiguration;
private DeleteAction delete;
private RenameAction rename;
private StartAction start;
private StopAction stop;
private PropertiesAction properties;
// Listeners
private LdapServersManagerListener ldapServersManagerListener = new LdapServersManagerListener()
{
public void serverAdded( LdapServer server )
{
asyncRefresh();
}
public void serverRemoved( LdapServer server )
{
asyncRefresh();
}
public void serverUpdated( LdapServer server )
{
asyncRefresh();
}
};
/**
* {@inheritDoc}
*/
public void createPartControl( Composite parent )
{
instance = this;
// Creating the Tree
tree = new Tree( parent, SWT.SINGLE | SWT.FULL_SELECTION | SWT.H_SCROLL | SWT.V_SCROLL );
tree.setLayoutData( new GridData( SWT.FILL, SWT.FILL, true, true ) );
tree.setHeaderVisible( true );
tree.setLinesVisible( false );
// Adding columns
TreeColumn serverColumn = new TreeColumn( tree, SWT.SINGLE );
serverColumn.setText( Messages.getString( "ServersView.server" ) ); //$NON-NLS-1$
serverColumn.setWidth( columnWidths[0] );
serverColumn.addSelectionListener( getColumnSelectionListener( 0 ) );
tree.setSortColumn( serverColumn );
tree.setSortDirection( SWT.UP );
TreeColumn stateColumn = new TreeColumn( tree, SWT.SINGLE );
stateColumn.setText( Messages.getString( "ServersView.state" ) ); //$NON-NLS-1$
stateColumn.setWidth( columnWidths[1] );
stateColumn.addSelectionListener( getColumnSelectionListener( 1 ) );
// Creating the viewer
tableViewer = new ServersTableViewer( tree );
initActions();
initToolbar();
initContextMenu();
initListeners();
// set help context
// TODO
// PlatformUI.getWorkbench().getHelpSystem()
// .setHelp( parent, ApacheDsPluginConstants.PLUGIN_ID + "." + "gettingstarted_views_servers" ); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* {@inheritDoc}
*/
public void init( IViewSite site, IMemento memento ) throws PartInitException
{
super.init( site, memento );
columnWidths = new int[]
{ 150, 80 };
for ( int i = 0; i < 2; i++ )
{
if ( memento != null )
{
Integer in = memento.getInteger( TAG_COLUMN_WIDTH + i );
if ( in != null && in.intValue() > 5 )
{
columnWidths[i] = in.intValue();
}
}
}
}
/**
* {@inheritDoc}
*/
public void saveState( IMemento memento )
{
TreeColumn[] tc = tableViewer.getTree().getColumns();
for ( int i = 0; i < 2; i++ )
{
int width = tc[i].getWidth();
if ( width != 0 )
{
memento.putInteger( TAG_COLUMN_WIDTH + i, width );
}
}
}
/**
* {@inheritDoc}
*/
public void setFocus()
{
if ( tree != null )
{
tree.setFocus();
}
}
/**
* Initializes the actions.
*/
private void initActions()
{
newServer = new NewServerAction();
openConfiguration = new OpenConfigurationAction( this );
openConfiguration.setEnabled( false );
delete = new DeleteAction( this );
delete.setEnabled( false );
rename = new RenameAction( this );
rename.setEnabled( false );
start = new StartAction( this );
start.setEnabled( false );
stop = new StopAction( this );
stop.setEnabled( false );
properties = new PropertiesAction( this );
properties.setEnabled( false );
}
/**
* Initializes the toolbar.
*/
private void initToolbar()
{
IToolBarManager toolbar = getViewSite().getActionBars().getToolBarManager();
toolbar.add( newServer );
toolbar.add( new Separator() );
toolbar.add( start );
toolbar.add( stop );
}
/**
* Initializes the Context Menu.
*/
private void initContextMenu()
{
MenuManager contextMenu = new MenuManager( "" ); //$NON-NLS-1$
contextMenu.setRemoveAllWhenShown( true );
contextMenu.addMenuListener( new IMenuListener()
{
public void menuAboutToShow( IMenuManager manager )
{
MenuManager newManager = new MenuManager( Messages.getString( "ServersView.new" ) ); //$NON-NLS-1$
newManager.add( newServer );
manager.add( newManager );
manager.add( openConfiguration );
manager.add( new Separator() );
manager.add( delete );
manager.add( rename );
manager.add( new Separator() );
manager.add( start );
manager.add( stop );
manager.add( new Separator() );
manager.add( new Separator( IWorkbenchActionConstants.MB_ADDITIONS ) );
manager.add( new Separator() );
manager.add( new Separator() );
manager.add( properties );
}
} );
// set the context menu to the table viewer
tableViewer.getControl().setMenu( contextMenu.createContextMenu( tableViewer.getControl() ) );
// register the context menu to enable extension actions
getSite().registerContextMenu( contextMenu, tableViewer );
}
/**
* Initializes the listeners
*/
private void initListeners()
{
LdapServersManager serversHandler = LdapServersManager.getDefault();
serversHandler.addListener( ldapServersManagerListener );
tableViewer.addDoubleClickListener( new IDoubleClickListener()
{
public void doubleClick( DoubleClickEvent event )
{
openConfiguration.run();
}
} );
tableViewer.addSelectionChangedListener( new ISelectionChangedListener()
{
public void selectionChanged( SelectionChangedEvent event )
{
updateActionsStates();
}
} );
// Initializing the PartListener
getSite().getPage().addPartListener( new IPartListener2()
{
/**
* This implementation deactivates the shortcuts when the part is deactivated.
*/
public void partDeactivated( IWorkbenchPartReference partRef )
{
if ( partRef.getPart( false ) == instance && contextActivation != null )
{
ICommandService commandService = ( ICommandService ) PlatformUI.getWorkbench().getAdapter(
ICommandService.class );
if ( commandService != null )
{
commandService.getCommand( newServer.getActionDefinitionId() ).setHandler( null );
commandService.getCommand( openConfiguration.getActionDefinitionId() ).setHandler( null );
commandService.getCommand( delete.getActionDefinitionId() ).setHandler( null );
commandService.getCommand( rename.getActionDefinitionId() ).setHandler( null );
commandService.getCommand( start.getActionDefinitionId() ).setHandler( null );
commandService.getCommand( stop.getActionDefinitionId() ).setHandler( null );
commandService.getCommand( properties.getActionDefinitionId() ).setHandler( null );
}
IContextService contextService = ( IContextService ) PlatformUI.getWorkbench().getAdapter(
IContextService.class );
contextService.deactivateContext( contextActivation );
contextActivation = null;
}
}
/**
* This implementation activates the shortcuts when the part is activated.
*/
public void partActivated( IWorkbenchPartReference partRef )
{
if ( partRef.getPart( false ) == instance )
{
IContextService contextService = ( IContextService ) PlatformUI.getWorkbench().getAdapter(
IContextService.class );
contextActivation = contextService
.activateContext( LdapServersPluginConstants.CONTEXTS_SERVERS_VIEW );
ICommandService commandService = ( ICommandService ) PlatformUI.getWorkbench().getAdapter(
ICommandService.class );
if ( commandService != null )
{
commandService.getCommand( newServer.getActionDefinitionId() ).setHandler(
new ActionHandler( newServer ) );
commandService.getCommand( openConfiguration.getActionDefinitionId() ).setHandler(
new ActionHandler( openConfiguration ) );
commandService.getCommand( delete.getActionDefinitionId() ).setHandler(
new ActionHandler( delete ) );
commandService.getCommand( rename.getActionDefinitionId() ).setHandler(
new ActionHandler( rename ) );
commandService.getCommand( start.getActionDefinitionId() ).setHandler(
new ActionHandler( start ) );
commandService.getCommand( stop.getActionDefinitionId() )
.setHandler( new ActionHandler( stop ) );
commandService.getCommand( properties.getActionDefinitionId() ).setHandler(
new ActionHandler( properties ) );
}
}
}
public void partBroughtToTop( IWorkbenchPartReference partRef )
{
}
public void partClosed( IWorkbenchPartReference partRef )
{
}
public void partHidden( IWorkbenchPartReference partRef )
{
}
public void partInputChanged( IWorkbenchPartReference partRef )
{
}
public void partOpened( IWorkbenchPartReference partRef )
{
}
public void partVisible( IWorkbenchPartReference partRef )
{
}
} );
}
/**
* Enables or disables the actions according to the current selection
* in the viewer.
*/
public void updateActionsStates()
{
// Getting the selection
StructuredSelection selection = ( StructuredSelection ) tableViewer.getSelection();
if ( !selection.isEmpty() )
{
LdapServer server = ( LdapServer ) selection.getFirstElement();
switch ( server.getStatus() )
{
case STARTED:
start.setEnabled( false );
stop.setEnabled( true );
break;
case STARTING:
start.setEnabled( false );
stop.setEnabled( false );
break;
case STOPPED:
start.setEnabled( true );
stop.setEnabled( false );
break;
case STOPPING:
start.setEnabled( false );
stop.setEnabled( false );
break;
case UNKNOWN:
start.setEnabled( false );
stop.setEnabled( false );
break;
}
openConfiguration.setEnabled( server.getLdapServerAdapterExtension().isOpenConfigurationActionEnabled() );
delete.setEnabled( true );
rename.setEnabled( true );
properties.setEnabled( true );
}
else
{
openConfiguration.setEnabled( false );
delete.setEnabled( false );
rename.setEnabled( false );
start.setEnabled( false );
stop.setEnabled( false );
properties.setEnabled( false );
}
}
/**
* Gets the table viewer.
*
* @return
* the table viewer
*/
public TreeViewer getViewer()
{
return tableViewer;
}
/**
* {@inheritDoc}
*/
public void dispose()
{
LdapServersManager.getDefault().removeListener( ldapServersManagerListener );
super.dispose();
}
/**
* Refreshes the Servers View asynchronously.
*/
private void asyncRefresh()
{
Display.getDefault().asyncExec( new Runnable()
{
public void run()
{
tableViewer.refresh();
}
} );
}
private SelectionListener getColumnSelectionListener( final int column )
{
return new SelectionAdapter()
{
public void widgetSelected( SelectionEvent e )
{
TreeColumn treeColumn = ( TreeColumn ) e.widget;
tableViewer.sort( treeColumn, column );
}
};
}
}