/*
* 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.view.dialogs;
import java.util.ArrayList;
import java.util.List;
import org.apache.directory.studio.schemaeditor.Activator;
import org.apache.directory.studio.schemaeditor.PluginConstants;
import org.apache.directory.studio.schemaeditor.model.ObjectClassImpl;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.DecoratingLabelProvider;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
/**
* This class is the Object Class Selection Dialog, that allows user to select an object class.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
public class ObjectClassSelectionDialog extends Dialog
{
/** The selected object class */
private ObjectClassImpl selectedObjectClass;
/** The hidden Object Classes */
private List<ObjectClassImpl> hiddenObjectClasses;
// UI Fields
private Text searchText;
private Table objectClassesTable;
private TableViewer objectClassesTableViewer;
private Label schemaIconLabel;
private Label schemaNameLabel;
private Button chooseButton;
/**
* Creates a new instance of ObjectClassSelectionDialog.
*/
public ObjectClassSelectionDialog()
{
super( PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell() );
hiddenObjectClasses = new ArrayList<ObjectClassImpl>();
}
/* (non-Javadoc)
* @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
*/
protected void configureShell( Shell newShell )
{
super.configureShell( newShell );
newShell.setText( Messages.getString( "ObjectClassSelectionDialog.ClassSelection" ) ); //$NON-NLS-1$
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
*/
protected Control createDialogArea( Composite parent )
{
Composite composite = new Composite( parent, SWT.NONE );
GridLayout layout = new GridLayout( 1, false );
composite.setLayout( layout );
Label chooseLabel = new Label( composite, SWT.NONE );
chooseLabel.setText( Messages.getString( "ObjectClassSelectionDialog.ChooseClass" ) ); //$NON-NLS-1$
chooseLabel.setLayoutData( new GridData( SWT.FILL, SWT.NONE, true, false ) );
searchText = new Text( composite, SWT.BORDER );
searchText.setLayoutData( new GridData( SWT.FILL, SWT.NONE, true, false ) );
searchText.addModifyListener( new ModifyListener()
{
public void modifyText( ModifyEvent e )
{
setSearchInput( searchText.getText() );
}
} );
searchText.addKeyListener( new KeyAdapter()
{
public void keyPressed( KeyEvent e )
{
if ( e.keyCode == SWT.ARROW_DOWN )
{
objectClassesTable.setFocus();
}
}
} );
Label matchingLabel = new Label( composite, SWT.NONE );
matchingLabel.setText( Messages.getString( "ObjectClassSelectionDialog.MatchingClasses" ) ); //$NON-NLS-1$
matchingLabel.setLayoutData( new GridData( SWT.FILL, SWT.None, true, false ) );
objectClassesTable = new Table( composite, SWT.SINGLE | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL
| SWT.FULL_SELECTION | SWT.HIDE_SELECTION );
GridData gridData = new GridData( SWT.FILL, SWT.FILL, true, true );
gridData.heightHint = 148;
gridData.minimumHeight = 148;
gridData.widthHint = 350;
gridData.minimumWidth = 350;
objectClassesTable.setLayoutData( gridData );
objectClassesTable.addMouseListener( new MouseAdapter()
{
public void mouseDoubleClick( MouseEvent e )
{
if ( objectClassesTable.getSelectionIndex() != -1 )
{
okPressed();
}
}
} );
objectClassesTableViewer = new TableViewer( objectClassesTable );
objectClassesTableViewer
.setContentProvider( new ObjectClassSelectionDialogContentProvider( hiddenObjectClasses ) );
objectClassesTableViewer.setLabelProvider( new DecoratingLabelProvider(
new ObjectClassSelectionDialogLabelProvider(), Activator.getDefault().getWorkbench().getDecoratorManager()
.getLabelDecorator() ) );
objectClassesTableViewer.addSelectionChangedListener( new ISelectionChangedListener()
{
public void selectionChanged( SelectionChangedEvent event )
{
StructuredSelection selection = ( StructuredSelection ) objectClassesTableViewer.getSelection();
if ( selection.isEmpty() )
{
if ( ( chooseButton != null ) && ( !chooseButton.isDisposed() ) )
{
chooseButton.setEnabled( false );
}
schemaIconLabel.setImage( Activator.getDefault().getImage( PluginConstants.IMG_TRANSPARENT_16X16 ) );
schemaNameLabel.setText( "" ); //$NON-NLS-1$
}
else
{
if ( ( chooseButton != null ) && ( !chooseButton.isDisposed() ) )
{
chooseButton.setEnabled( true );
}
schemaIconLabel.setImage( Activator.getDefault().getImage( PluginConstants.IMG_SCHEMA ) );
schemaNameLabel.setText( ( ( ObjectClassImpl ) selection.getFirstElement() ).getSchema() );
}
}
} );
// Schema Composite
Composite schemaComposite = new Composite( composite, SWT.BORDER );
schemaComposite.setLayoutData( new GridData( SWT.FILL, SWT.NONE, true, false ) );
GridLayout schemaCompositeGridLayout = new GridLayout( 2, false );
schemaCompositeGridLayout.horizontalSpacing = 0;
schemaCompositeGridLayout.verticalSpacing = 0;
schemaCompositeGridLayout.marginWidth = 2;
schemaCompositeGridLayout.marginHeight = 2;
schemaComposite.setLayout( schemaCompositeGridLayout );
// Schema Icon Label
schemaIconLabel = new Label( schemaComposite, SWT.NONE );
GridData schemaIconLabelGridData = new GridData( SWT.NONE, SWT.BOTTOM, false, false );
schemaIconLabelGridData.widthHint = 18;
schemaIconLabelGridData.heightHint = 16;
schemaIconLabel.setLayoutData( schemaIconLabelGridData );
schemaIconLabel.setImage( Activator.getDefault().getImage( PluginConstants.IMG_TRANSPARENT_16X16 ) );
// Schema Name Label
schemaNameLabel = new Label( schemaComposite, SWT.NONE );
schemaNameLabel.setLayoutData( new GridData( SWT.FILL, SWT.BOTTOM, true, false ) );
schemaNameLabel.setText( "" ); //$NON-NLS-1$
// We need to force the input to load the complete list of attribute types
setSearchInput( "" ); //$NON-NLS-1$
return composite;
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
*/
protected void createButtonsForButtonBar( Composite parent )
{
chooseButton = createButton( parent, IDialogConstants.OK_ID, "Choose", true ); //$NON-NLS-1$
createButton( parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false );
StructuredSelection selection = ( StructuredSelection ) objectClassesTableViewer.getSelection();
if ( selection.isEmpty() )
{
if ( ( chooseButton != null ) && ( !chooseButton.isDisposed() ) )
{
chooseButton.setEnabled( false );
}
}
else
{
if ( ( chooseButton != null ) && ( !chooseButton.isDisposed() ) )
{
chooseButton.setEnabled( true );
}
}
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#okPressed()
*/
protected void okPressed()
{
StructuredSelection selection = ( StructuredSelection ) objectClassesTableViewer.getSelection();
if ( selection.isEmpty() )
{
MessageDialog.openError( getShell(), Messages.getString( "ObjectClassSelectionDialog.InvalidSelection" ), //$NON-NLS-1$
Messages.getString( "ObjectClassSelectionDialog.MustChooseClass" ) ); //$NON-NLS-1$
return;
}
else
{
selectedObjectClass = ( ObjectClassImpl ) selection.getFirstElement();
}
super.okPressed();
}
/**
* Returns the selected Object Class.
*
* @return
* the selected Object Class
*/
public ObjectClassImpl getSelectedObjectClass()
{
return selectedObjectClass;
}
/**
* Set the hidden Object Classes.
*
* @param list
* a list of Object Classes to hide
*/
public void setHiddenObjectClasses( List<ObjectClassImpl> list )
{
hiddenObjectClasses = list;
}
/**
* Sets the hidden Object Classes.
*
* @param objectClasses
* an array of Object Classes to hide
*/
public void setHiddenObjectClasses( ObjectClassImpl[] objectClasses )
{
for ( ObjectClassImpl objectClass : objectClasses )
{
hiddenObjectClasses.add( objectClass );
}
}
/**
* Set the Search Input.
*
* @param searchString
* the Search String
*/
private void setSearchInput( String searchString )
{
objectClassesTableViewer.setInput( searchString );
Object firstElement = objectClassesTableViewer.getElementAt( 0 );
if ( firstElement != null )
{
objectClassesTableViewer.setSelection( new StructuredSelection( firstElement ), true );
}
}
/* (non-Javadoc)
* @see org.eclipse.jface.dialogs.Dialog#close()
*/
public boolean close()
{
hiddenObjectClasses.clear();
hiddenObjectClasses = null;
objectClassesTableViewer = null;
objectClassesTable.dispose();
objectClassesTable = null;
searchText.dispose();
searchText = null;
schemaIconLabel.dispose();
schemaIconLabel = null;
schemaNameLabel.dispose();
schemaNameLabel = null;
return super.close();
}
}