bundles/org.eclipse.rap.ui.launch/src/org/eclipse/rap/ui/internal/launch/tab/MainTab.java - rap/org.eclipse.rap.tools - Git at Google

 /*******************************************************************************
  * Copyright (c) 2007 Innoopract Informationssysteme GmbH.
  * 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:
  *     Innoopract Informationssysteme GmbH - initial API and implementation
  ******************************************************************************/

 package org.eclipse.rap.ui.internal.launch.tab;

 import java.util.HashMap;
 import java.util.Map;
 import java.util.logging.Level;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.debug.core.ILaunchConfiguration;
 import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
 import org.eclipse.debug.ui.AbstractLaunchConfigurationTab;
 import org.eclipse.debug.ui.ILaunchConfigurationTab;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.layout.GridDataFactory;
 import org.eclipse.jface.preference.PreferenceDialog;
 import org.eclipse.jface.viewers.*;
 import org.eclipse.jface.window.Window;
 import org.eclipse.pde.ui.launcher.BundlesTab;
 import org.eclipse.rap.ui.internal.launch.RAPLaunchConfig;
 import org.eclipse.rap.ui.internal.launch.RAPLaunchConfigValidator;
 import org.eclipse.rap.ui.internal.launch.RAPLaunchConfig.BrowserMode;
 import org.eclipse.rap.ui.internal.launch.RAPLaunchConfig.LibraryVariant;
 import org.eclipse.rap.ui.internal.launch.util.ErrorUtil;
 import org.eclipse.rap.ui.internal.launch.util.Images;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.dialogs.PreferencesUtil;


 final class MainTab extends AbstractLaunchConfigurationTab {


   private static final String BROWSER_PREFERENCE_PAGE
     = "org.eclipse.ui.browser.preferencePage"; //$NON-NLS-1$

   private final GridDataFactory fillHorizontal;
   private final ModifyListener modifyListener;
   private final SelectionListener selectionListener;
   private final Image tabImage;
   private final Image warnImage;
   private Text txtServletName;
   private Text txtEntryPoint;
   private Button cbTerminatePrevious;
   private Button rbInternalBrowser;
   private Button rbExternalBrowser;
   private Button cbManualPort;
   private Spinner spnPort;
   private ComboViewer cmbLogLevel;
   private ComboViewer cmbLibVariant;

   MainTab() {
     tabImage = Images.DESC_MAIN_TAB.createImage();
     warnImage = Images.WARNING.createImage();
     GridData gridData = new GridData( SWT.FILL, SWT.CENTER, true, false );
     fillHorizontal = GridDataFactory.createFrom( gridData );
     modifyListener = new ModifyListener() {
       public void modifyText( final ModifyEvent e ) {
         updateLaunchConfigurationDialog();
       }
     };
     selectionListener = new SelectionAdapter() {
       public void widgetSelected( final SelectionEvent e ) {
         updateLaunchConfigurationDialog();
       }
     };
   }

   ////////////
   // Overrides

   public void dispose() {
     tabImage.dispose();
     warnImage.dispose();
     super.dispose();
   }

   public void createControl( final Composite parent ) {
     // Create container that holds all sections
     Composite container = new Composite( parent, SWT.NONE );
     container.setLayout( new GridLayout() );
     container.setLayoutData( new GridData( GridData.FILL_BOTH ) );
     // Create sections
     createServletNameAndEntryPointSection( container );
     createBrowserModeSection( container );
     createRuntimeSettingsSection( container );
     createInfoSection( container );
     // Set container for this tab page
     Dialog.applyDialogFont( container );
     setControl( container );
   }

   public String getName() {
     return "&Main";
   }

   public Image getImage() {
     return tabImage;
   }

   public void initializeFrom( final ILaunchConfiguration config ) {
     RAPLaunchConfig rapConfig = new RAPLaunchConfig( config );
     try {
       // ServletName
       txtServletName.setText( rapConfig.getServletName() );
       // EntryPoint
       txtEntryPoint.setText( rapConfig.getEntryPoint() );
       // TerminatePrevious
       cbTerminatePrevious.setSelection( rapConfig.getTerminatePrevious() );
       // Port
       cbManualPort.setSelection( rapConfig.getUseManualPort() );
       spnPort.setSelection( rapConfig.getPort() );
       // BrowserMode
       if( BrowserMode.EXTERNAL.equals( rapConfig.getBrowserMode() ) ) {
         rbExternalBrowser.setSelection( true );
         rbInternalBrowser.setSelection( false );
       } else {
         rbExternalBrowser.setSelection( false );
         rbInternalBrowser.setSelection( true );
       }
       // LogLevel
       Level logLevel = rapConfig.getLogLevel();
       StructuredSelection logSelection = new StructuredSelection( logLevel );
       cmbLogLevel.setSelection( logSelection );
       // LibraryVariant
       LibraryVariant libVariant = rapConfig.getLibraryVariant();
       StructuredSelection libSelection = new StructuredSelection( libVariant );
       cmbLibVariant.setSelection( libSelection );
     } catch( CoreException e ) {
       ErrorUtil.show( null, e );
     }
   }

   public void performApply( final ILaunchConfigurationWorkingCopy config ) {
     RAPLaunchConfig rapConfig = new RAPLaunchConfig( config );
     // ServletName
     rapConfig.setServletName( txtServletName.getText() );
     // EntryPoint
     rapConfig.setEntryPoint( txtEntryPoint.getText() );
     // TerminatePrevious
     rapConfig.setTerminatePrevious( cbTerminatePrevious.getSelection() );
     // BrowserMode
     rapConfig.setBrowserMode( getBrowserMode() );
     // Manual Port
     spnPort.setEnabled( cbManualPort.getSelection() );
     // Port Number
     rapConfig.setUseManualPort( cbManualPort.getSelection() );
     rapConfig.setPort( spnPort.getSelection() );
     // Client-side log level
     rapConfig.setLogLevel( getLogLevel() );
     rapConfig.setLibraryVariant( getLibraryVariant() );
     validate( rapConfig );
     setDirty( true );
   }

   public void setDefaults( final ILaunchConfigurationWorkingCopy config ) {
     RAPLaunchConfig.setDefaults( config );
   }

   public boolean isValid( final ILaunchConfiguration launchConfig ) {
     return getErrorMessage() == null;
   }

   ///////////////////////////////////
   // Helping methods to create the UI

   private void createServletNameAndEntryPointSection( final Composite parent ) {
     Group group = new Group( parent, SWT.NONE );
     group.setLayout( new GridLayout( 3, false ) );
     group.setLayoutData( fillHorizontal.create() );
     group.setText( "Servlet and Entry Point to Run" );
     Label lblServletName = new Label( group, SWT.NONE );
     lblServletName.setText( "Ser&vlet Name" );
     txtServletName = new Text( group, SWT.BORDER );
     txtServletName.setLayoutData( fillHorizontal.create() );
     txtServletName.addModifyListener( modifyListener );
     Button btnBrowseServletName = new Button( group, SWT.PUSH );
     btnBrowseServletName.setText( "Bro&wse..." );
     btnBrowseServletName.addSelectionListener( new SelectionAdapter() {
       public void widgetSelected( final SelectionEvent event ) {
         handleBrowseServletName();
       }
     } );
     Label lblEntryPoint = new Label( group, SWT.NONE );
     lblEntryPoint.setText( "&Entry Point" );
     txtEntryPoint = new Text( group, SWT.BORDER );
     txtEntryPoint.setLayoutData( fillHorizontal.create() );
     txtEntryPoint.addModifyListener( modifyListener );
     Button btnBrowseEntryPoint = new Button( group, SWT.PUSH );
     btnBrowseEntryPoint.setText( "&Browse..." );
     btnBrowseEntryPoint.addSelectionListener( new SelectionAdapter() {
       public void widgetSelected( final SelectionEvent event ) {
         handleBrowseEntryPoint();
       }
     } );
     cbTerminatePrevious = new Button( group, SWT.CHECK );
     cbTerminatePrevious.setLayoutData( spanHorizontal( 3 ) );
     String text = "&Terminate possibly running previous launch";
     cbTerminatePrevious.setText( text );
     cbTerminatePrevious.addSelectionListener( selectionListener );
   }

   private void createBrowserModeSection( final Composite parent ) {
     Group group = new Group( parent, SWT.NONE );
     group.setLayoutData( fillHorizontal.create() );
     group.setText( "Browser" );
     group.setLayout( new GridLayout( 2, false ) );
     Label lblBrowserMode = new Label( group, SWT.NONE );
     GridDataFactory grab = GridDataFactory.swtDefaults();
     grab.grab( true, false );
     lblBrowserMode.setLayoutData( grab.create() );
     lblBrowserMode.setText( "Run in" );
     Link lnkBrowserPrefs = new Link( group, SWT.NONE );
     lnkBrowserPrefs.setText( "<a>Configure Browsers...</a>" );
     lnkBrowserPrefs.addSelectionListener( new SelectionAdapter() {
       public void widgetSelected( final SelectionEvent event ) {
         handleBrowserPrefsLink();
       }
     } );
     rbInternalBrowser = new Button( group, SWT.RADIO );
     rbInternalBrowser.setLayoutData( spanHorizontal( 2 ) );
     rbInternalBrowser.setText( "Intern&al Browser" );
     rbInternalBrowser.addSelectionListener( selectionListener );
     rbExternalBrowser = new Button( group, SWT.RADIO );
     rbExternalBrowser.setLayoutData( spanHorizontal( 2 ) );
     rbExternalBrowser.setText( "E&xternal Browser" );
     rbExternalBrowser.addSelectionListener( selectionListener );
   }

   private void createRuntimeSettingsSection( final Composite parent ) {
     Group group = new Group( parent, SWT.NONE );
     group.setLayoutData( fillHorizontal.create() );
     group.setText( "Runtime Settings" );
     group.setLayout( new GridLayout( 2, false ) );
     cbManualPort = new Button( group, SWT.CHECK );
     cbManualPort.setText( "Manual &Port configuration" );
     cbManualPort.addSelectionListener( selectionListener );
     spnPort = new Spinner( group, SWT.BORDER );
     spnPort.setLayoutData( new GridData( 60, SWT.DEFAULT ) );
     spnPort.setMinimum( RAPLaunchConfig.MIN_PORT_NUMBER );
     spnPort.setMaximum( RAPLaunchConfig.MAX_PORT_NUMBER );
     spnPort.addModifyListener( modifyListener );
     Label lblLogLevel = new Label( group, SWT.NONE );
     lblLogLevel.setText( "Client-side &Log Level" );
     cmbLogLevel = new ComboViewer( group, SWT.DROP_DOWN | SWT.READ_ONLY );
     int itemCount = RAPLaunchConfig.LOG_LEVELS.length;
     cmbLogLevel.getCombo().setVisibleItemCount( itemCount );
     cmbLogLevel.setLabelProvider( new LogLevelLabelProvider() );
     cmbLogLevel.setContentProvider( new ArrayContentProvider() );
     cmbLogLevel.setInput( RAPLaunchConfig.LOG_LEVELS );
     cmbLogLevel.addSelectionChangedListener( new ISelectionChangedListener() {
       public void selectionChanged( final SelectionChangedEvent event ) {
         updateLaunchConfigurationDialog();
       }
     } );
     Label lblLibraryVariant = new Label( group, SWT.NONE );
     lblLibraryVariant.setText( "Client-side Library Variant" );
     cmbLibVariant = new ComboViewer( group, SWT.DROP_DOWN | SWT.READ_ONLY );
     cmbLibVariant.setLabelProvider( new LibraryVariantLabelProvider() );
     cmbLibVariant.setContentProvider( new ArrayContentProvider() );
     cmbLibVariant.setInput( LibraryVariant.values() );
     cmbLibVariant.addSelectionChangedListener( new ISelectionChangedListener() {
       public void selectionChanged( final SelectionChangedEvent event ) {
         updateLaunchConfigurationDialog();
       }
     } );
   }

   // TODO [rh] This could be omitted if we could figure out which OSGi
   //      framework is currently set. But my ingestigations so far showed that
   //      it would involve internal API of org.eclipse.pde.ui to obtain the
   //      default OSGi framework
   private void createInfoSection( final Composite parent ) {
     Group group = new Group( parent, SWT.NONE );
     group.setLayoutData( fillHorizontal.create() );
     group.setText( "Important Information" );
     group.setLayout( new GridLayout( 2, false ) );
     Label lblImage = new Label( group, SWT.NONE );
     lblImage.setLayoutData( new GridData( SWT.TOP, SWT.LEFT, false, false ) );
     lblImage.setImage( warnImage );
     String text
       = "Please note, that the RAP Application Launcher only works with "
       + "the  Equinox OSGi Framework (this is the default setting on page "
       + "<a>'Bundles'</a>).";
     Link lblText = new Link( group, SWT.WRAP );
     lblText.setLayoutData( new GridData( SWT.FILL, SWT.FILL, true, false ) );
     lblText.setText( text );
     lblText.addSelectionListener( new SelectionAdapter() {
       public void widgetSelected( final SelectionEvent event ) {
         handleSelectBundlesTab();
       }
     } );
   }

   ////////////////
   // Layout helper

   private static GridData spanHorizontal( final int span ) {
     return new GridData( SWT.FILL, SWT.CENTER, true, false, span, SWT.DEFAULT );
   }

   /////////////
   // Validation

   private void validate( final RAPLaunchConfig config ) {
     RAPLaunchConfigValidator validator = new RAPLaunchConfigValidator( config );
     IStatus[] states = validator.validate();
     String infoMessage = findMessage( states, IStatus.INFO );
     String warnMessage = findMessage( states, IStatus.WARNING );
     String errorMessage = findMessage( states, IStatus.ERROR );
     if( warnMessage != null ) {
       setMessage( warnMessage );
     } else {
       setMessage( infoMessage );
     }
     setErrorMessage( errorMessage );
   }

   private static String findMessage( final IStatus[] states,
                                      final int severity )
   {
     String result = null;
     for( int i = 0; result == null && i < states.length; i++ ) {
       if( states[ i ].matches( severity ) ) {
         result = states[ i ].getMessage();
       }
     }
     return result;
   }

   ////////////////
   // Handle events

   private void handleBrowseEntryPoint() {
     EntryPointSelectionDialog dialog
       = new EntryPointSelectionDialog( getShell() );
     if( dialog.open() == Window.OK ) {
       Object[] selection = dialog.getResult();
       EntryPointExtension entryPoint = ( EntryPointExtension )selection[ 0 ];
       txtEntryPoint.setText( entryPoint.getParameter() );
     }
   }

   private void handleBrowseServletName() {
     ServletNameSelectionDialog dialog
       = new ServletNameSelectionDialog( getShell() );
     if( dialog.open() == Window.OK ) {
       Object[] selection = dialog.getResult();
       BrandingExtension branding = ( BrandingExtension )selection[ 0 ];
       txtServletName.setText( branding.getServletName() );
       String defaultEntryPointId = branding.getDefaultEntryPointId();
       String parameter = null;
       try {
         EntryPointExtension defaultEntryPoint
           = EntryPointExtension.findById( defaultEntryPointId );
         if( defaultEntryPoint != null ) {
           parameter = defaultEntryPoint.getParameter();
         }
       } catch( CoreException e ) {
         String msg = "Failed to obtain default entry point from branding";
         ErrorUtil.show( msg, e );
       }
       if( txtEntryPoint.getText().length() == 0 && parameter != null ) {
         txtEntryPoint.setText( parameter );
       }
     }
   }

   private void handleBrowserPrefsLink() {
     PreferenceDialog dialog
       = PreferencesUtil.createPreferenceDialogOn( getShell(),
                                                   BROWSER_PREFERENCE_PAGE,
                                                   null,
                                                   null );
     dialog.open();
   }

   private void handleSelectBundlesTab() {
     ILaunchConfigurationTab bundlesTab = null;
     ILaunchConfigurationTab[] tabs = getLaunchConfigurationDialog().getTabs();
     for( int i = 0; bundlesTab == null && i < tabs.length; i++ ) {
       if( tabs[ i ] instanceof BundlesTab ) {
         bundlesTab= tabs[ i ];
       }
     }
     if( bundlesTab != null ) {
       getLaunchConfigurationDialog().setActiveTab( bundlesTab );
     }
   }

   /////////////////////////////////////////////////////////
   // Helpers to get entered/selected values from UI widgets

   private BrowserMode getBrowserMode() {
     return   rbExternalBrowser.getSelection()
            ? BrowserMode.EXTERNAL
            : BrowserMode.INTERNAL;
   }

   private Level getLogLevel() {
     Level result = Level.OFF;
     ISelection selection = cmbLogLevel.getSelection();
     if( !selection.isEmpty() ) {
       result = ( Level )( ( IStructuredSelection )selection ).getFirstElement();
     }
     return result;
   }

   private LibraryVariant getLibraryVariant() {
     LibraryVariant result = LibraryVariant.STANDARD;
     ISelection selection = cmbLibVariant.getSelection();
     if( !selection.isEmpty() ) {
       IStructuredSelection structuredSel = ( IStructuredSelection )selection;
       result = ( LibraryVariant )structuredSel.getFirstElement();
     }
     return result;
   }

   ////////////////
   // Inner classes

   private static final class LogLevelLabelProvider extends LabelProvider {
     private static final Map lables = new HashMap();
     static {
       lables.put( Level.ALL, "All" );
       lables.put( Level.OFF, "Off" );
       lables.put( Level.CONFIG, "Config" );
       lables.put( Level.WARNING, "Warning" );
       lables.put( Level.SEVERE, "Severe" );
       lables.put( Level.FINE, "Fine" );
       lables.put( Level.FINER, "Finer" );
       lables.put( Level.FINEST, "Finest" );
       lables.put( Level.INFO, "Info" );
     }
     public String getText( final Object element ) {
       String result = ( String )lables.get( element );
       if( result == null ) {
         result = super.getText( element );
       }
       return result;
     }
   }

   private static final class LibraryVariantLabelProvider extends LabelProvider {
     public String getText( final Object element ) {
       String result;
       if( LibraryVariant.STANDARD.equals( element ) ) {
         result = "Standard";
       } else if( LibraryVariant.DEBUG.equals( element ) ) {
         result = "Debug";
       } else {
         result = super.getText( element );
       }
       return result;
     }
   }
 }
	/*******************************************************************************
	* Copyright (c) 2007 Innoopract Informationssysteme GmbH.
	* 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:
	* Innoopract Informationssysteme GmbH - initial API and implementation
	******************************************************************************/

	package org.eclipse.rap.ui.internal.launch.tab;

	import java.util.HashMap;
	import java.util.Map;
	import java.util.logging.Level;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.debug.core.ILaunchConfiguration;
	import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
	import org.eclipse.debug.ui.AbstractLaunchConfigurationTab;
	import org.eclipse.debug.ui.ILaunchConfigurationTab;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.layout.GridDataFactory;
	import org.eclipse.jface.preference.PreferenceDialog;
	import org.eclipse.jface.viewers.*;
	import org.eclipse.jface.window.Window;
	import org.eclipse.pde.ui.launcher.BundlesTab;
	import org.eclipse.rap.ui.internal.launch.RAPLaunchConfig;
	import org.eclipse.rap.ui.internal.launch.RAPLaunchConfigValidator;
	import org.eclipse.rap.ui.internal.launch.RAPLaunchConfig.BrowserMode;
	import org.eclipse.rap.ui.internal.launch.RAPLaunchConfig.LibraryVariant;
	import org.eclipse.rap.ui.internal.launch.util.ErrorUtil;
	import org.eclipse.rap.ui.internal.launch.util.Images;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.dialogs.PreferencesUtil;


	final class MainTab extends AbstractLaunchConfigurationTab {


	private static final String BROWSER_PREFERENCE_PAGE
	= "org.eclipse.ui.browser.preferencePage"; //$NON-NLS-1$

	private final GridDataFactory fillHorizontal;
	private final ModifyListener modifyListener;
	private final SelectionListener selectionListener;
	private final Image tabImage;
	private final Image warnImage;
	private Text txtServletName;
	private Text txtEntryPoint;
	private Button cbTerminatePrevious;
	private Button rbInternalBrowser;
	private Button rbExternalBrowser;
	private Button cbManualPort;
	private Spinner spnPort;
	private ComboViewer cmbLogLevel;
	private ComboViewer cmbLibVariant;

	MainTab() {
	tabImage = Images.DESC_MAIN_TAB.createImage();
	warnImage = Images.WARNING.createImage();
	GridData gridData = new GridData( SWT.FILL, SWT.CENTER, true, false );
	fillHorizontal = GridDataFactory.createFrom( gridData );
	modifyListener = new ModifyListener() {
	public void modifyText( final ModifyEvent e ) {
	updateLaunchConfigurationDialog();
	}
	};
	selectionListener = new SelectionAdapter() {
	public void widgetSelected( final SelectionEvent e ) {
	updateLaunchConfigurationDialog();
	}
	};
	}

	////////////
	// Overrides

	public void dispose() {
	tabImage.dispose();
	warnImage.dispose();
	super.dispose();
	}

	public void createControl( final Composite parent ) {
	// Create container that holds all sections
	Composite container = new Composite( parent, SWT.NONE );
	container.setLayout( new GridLayout() );
	container.setLayoutData( new GridData( GridData.FILL_BOTH ) );
	// Create sections
	createServletNameAndEntryPointSection( container );
	createBrowserModeSection( container );
	createRuntimeSettingsSection( container );
	createInfoSection( container );
	// Set container for this tab page
	Dialog.applyDialogFont( container );
	setControl( container );
	}

	public String getName() {
	return "&Main";
	}

	public Image getImage() {
	return tabImage;
	}

	public void initializeFrom( final ILaunchConfiguration config ) {
	RAPLaunchConfig rapConfig = new RAPLaunchConfig( config );
	try {
	// ServletName
	txtServletName.setText( rapConfig.getServletName() );
	// EntryPoint
	txtEntryPoint.setText( rapConfig.getEntryPoint() );
	// TerminatePrevious
	cbTerminatePrevious.setSelection( rapConfig.getTerminatePrevious() );
	// Port
	cbManualPort.setSelection( rapConfig.getUseManualPort() );
	spnPort.setSelection( rapConfig.getPort() );
	// BrowserMode
	if( BrowserMode.EXTERNAL.equals( rapConfig.getBrowserMode() ) ) {
	rbExternalBrowser.setSelection( true );
	rbInternalBrowser.setSelection( false );
	} else {
	rbExternalBrowser.setSelection( false );
	rbInternalBrowser.setSelection( true );
	}
	// LogLevel
	Level logLevel = rapConfig.getLogLevel();
	StructuredSelection logSelection = new StructuredSelection( logLevel );
	cmbLogLevel.setSelection( logSelection );
	// LibraryVariant
	LibraryVariant libVariant = rapConfig.getLibraryVariant();
	StructuredSelection libSelection = new StructuredSelection( libVariant );
	cmbLibVariant.setSelection( libSelection );
	} catch( CoreException e ) {
	ErrorUtil.show( null, e );
	}
	}

	public void performApply( final ILaunchConfigurationWorkingCopy config ) {
	RAPLaunchConfig rapConfig = new RAPLaunchConfig( config );
	// ServletName
	rapConfig.setServletName( txtServletName.getText() );
	// EntryPoint
	rapConfig.setEntryPoint( txtEntryPoint.getText() );
	// TerminatePrevious
	rapConfig.setTerminatePrevious( cbTerminatePrevious.getSelection() );
	// BrowserMode
	rapConfig.setBrowserMode( getBrowserMode() );
	// Manual Port
	spnPort.setEnabled( cbManualPort.getSelection() );
	// Port Number
	rapConfig.setUseManualPort( cbManualPort.getSelection() );
	rapConfig.setPort( spnPort.getSelection() );
	// Client-side log level
	rapConfig.setLogLevel( getLogLevel() );
	rapConfig.setLibraryVariant( getLibraryVariant() );
	validate( rapConfig );
	setDirty( true );
	}

	public void setDefaults( final ILaunchConfigurationWorkingCopy config ) {
	RAPLaunchConfig.setDefaults( config );
	}

	public boolean isValid( final ILaunchConfiguration launchConfig ) {
	return getErrorMessage() == null;
	}

	///////////////////////////////////
	// Helping methods to create the UI

	private void createServletNameAndEntryPointSection( final Composite parent ) {
	Group group = new Group( parent, SWT.NONE );
	group.setLayout( new GridLayout( 3, false ) );
	group.setLayoutData( fillHorizontal.create() );
	group.setText( "Servlet and Entry Point to Run" );
	Label lblServletName = new Label( group, SWT.NONE );
	lblServletName.setText( "Ser&vlet Name" );
	txtServletName = new Text( group, SWT.BORDER );
	txtServletName.setLayoutData( fillHorizontal.create() );
	txtServletName.addModifyListener( modifyListener );
	Button btnBrowseServletName = new Button( group, SWT.PUSH );
	btnBrowseServletName.setText( "Bro&wse..." );
	btnBrowseServletName.addSelectionListener( new SelectionAdapter() {
	public void widgetSelected( final SelectionEvent event ) {
	handleBrowseServletName();
	}
	} );
	Label lblEntryPoint = new Label( group, SWT.NONE );
	lblEntryPoint.setText( "&Entry Point" );
	txtEntryPoint = new Text( group, SWT.BORDER );
	txtEntryPoint.setLayoutData( fillHorizontal.create() );
	txtEntryPoint.addModifyListener( modifyListener );
	Button btnBrowseEntryPoint = new Button( group, SWT.PUSH );
	btnBrowseEntryPoint.setText( "&Browse..." );
	btnBrowseEntryPoint.addSelectionListener( new SelectionAdapter() {
	public void widgetSelected( final SelectionEvent event ) {
	handleBrowseEntryPoint();
	}
	} );
	cbTerminatePrevious = new Button( group, SWT.CHECK );
	cbTerminatePrevious.setLayoutData( spanHorizontal( 3 ) );
	String text = "&Terminate possibly running previous launch";
	cbTerminatePrevious.setText( text );
	cbTerminatePrevious.addSelectionListener( selectionListener );
	}

	private void createBrowserModeSection( final Composite parent ) {
	Group group = new Group( parent, SWT.NONE );
	group.setLayoutData( fillHorizontal.create() );
	group.setText( "Browser" );
	group.setLayout( new GridLayout( 2, false ) );
	Label lblBrowserMode = new Label( group, SWT.NONE );
	GridDataFactory grab = GridDataFactory.swtDefaults();
	grab.grab( true, false );
	lblBrowserMode.setLayoutData( grab.create() );
	lblBrowserMode.setText( "Run in" );
	Link lnkBrowserPrefs = new Link( group, SWT.NONE );
	lnkBrowserPrefs.setText( "<a>Configure Browsers...</a>" );
	lnkBrowserPrefs.addSelectionListener( new SelectionAdapter() {
	public void widgetSelected( final SelectionEvent event ) {
	handleBrowserPrefsLink();
	}
	} );
	rbInternalBrowser = new Button( group, SWT.RADIO );
	rbInternalBrowser.setLayoutData( spanHorizontal( 2 ) );
	rbInternalBrowser.setText( "Intern&al Browser" );
	rbInternalBrowser.addSelectionListener( selectionListener );
	rbExternalBrowser = new Button( group, SWT.RADIO );
	rbExternalBrowser.setLayoutData( spanHorizontal( 2 ) );
	rbExternalBrowser.setText( "E&xternal Browser" );
	rbExternalBrowser.addSelectionListener( selectionListener );
	}

	private void createRuntimeSettingsSection( final Composite parent ) {
	Group group = new Group( parent, SWT.NONE );
	group.setLayoutData( fillHorizontal.create() );
	group.setText( "Runtime Settings" );
	group.setLayout( new GridLayout( 2, false ) );
	cbManualPort = new Button( group, SWT.CHECK );
	cbManualPort.setText( "Manual &Port configuration" );
	cbManualPort.addSelectionListener( selectionListener );
	spnPort = new Spinner( group, SWT.BORDER );
	spnPort.setLayoutData( new GridData( 60, SWT.DEFAULT ) );
	spnPort.setMinimum( RAPLaunchConfig.MIN_PORT_NUMBER );
	spnPort.setMaximum( RAPLaunchConfig.MAX_PORT_NUMBER );
	spnPort.addModifyListener( modifyListener );
	Label lblLogLevel = new Label( group, SWT.NONE );
	lblLogLevel.setText( "Client-side &Log Level" );
	cmbLogLevel = new ComboViewer( group, SWT.DROP_DOWN \| SWT.READ_ONLY );
	int itemCount = RAPLaunchConfig.LOG_LEVELS.length;
	cmbLogLevel.getCombo().setVisibleItemCount( itemCount );
	cmbLogLevel.setLabelProvider( new LogLevelLabelProvider() );
	cmbLogLevel.setContentProvider( new ArrayContentProvider() );
	cmbLogLevel.setInput( RAPLaunchConfig.LOG_LEVELS );
	cmbLogLevel.addSelectionChangedListener( new ISelectionChangedListener() {
	public void selectionChanged( final SelectionChangedEvent event ) {
	updateLaunchConfigurationDialog();
	}
	} );
	Label lblLibraryVariant = new Label( group, SWT.NONE );
	lblLibraryVariant.setText( "Client-side Library Variant" );
	cmbLibVariant = new ComboViewer( group, SWT.DROP_DOWN \| SWT.READ_ONLY );
	cmbLibVariant.setLabelProvider( new LibraryVariantLabelProvider() );
	cmbLibVariant.setContentProvider( new ArrayContentProvider() );
	cmbLibVariant.setInput( LibraryVariant.values() );
	cmbLibVariant.addSelectionChangedListener( new ISelectionChangedListener() {
	public void selectionChanged( final SelectionChangedEvent event ) {
	updateLaunchConfigurationDialog();
	}
	} );
	}

	// TODO [rh] This could be omitted if we could figure out which OSGi
	// framework is currently set. But my ingestigations so far showed that
	// it would involve internal API of org.eclipse.pde.ui to obtain the
	// default OSGi framework
	private void createInfoSection( final Composite parent ) {
	Group group = new Group( parent, SWT.NONE );
	group.setLayoutData( fillHorizontal.create() );
	group.setText( "Important Information" );
	group.setLayout( new GridLayout( 2, false ) );
	Label lblImage = new Label( group, SWT.NONE );
	lblImage.setLayoutData( new GridData( SWT.TOP, SWT.LEFT, false, false ) );
	lblImage.setImage( warnImage );
	String text
	= "Please note, that the RAP Application Launcher only works with "
	+ "the Equinox OSGi Framework (this is the default setting on page "
	+ "<a>'Bundles'</a>).";
	Link lblText = new Link( group, SWT.WRAP );
	lblText.setLayoutData( new GridData( SWT.FILL, SWT.FILL, true, false ) );
	lblText.setText( text );
	lblText.addSelectionListener( new SelectionAdapter() {
	public void widgetSelected( final SelectionEvent event ) {
	handleSelectBundlesTab();
	}
	} );
	}

	////////////////
	// Layout helper

	private static GridData spanHorizontal( final int span ) {
	return new GridData( SWT.FILL, SWT.CENTER, true, false, span, SWT.DEFAULT );
	}

	/////////////
	// Validation

	private void validate( final RAPLaunchConfig config ) {
	RAPLaunchConfigValidator validator = new RAPLaunchConfigValidator( config );
	IStatus[] states = validator.validate();
	String infoMessage = findMessage( states, IStatus.INFO );
	String warnMessage = findMessage( states, IStatus.WARNING );
	String errorMessage = findMessage( states, IStatus.ERROR );
	if( warnMessage != null ) {
	setMessage( warnMessage );
	} else {
	setMessage( infoMessage );
	}
	setErrorMessage( errorMessage );
	}

	private static String findMessage( final IStatus[] states,
	final int severity )
	{
	String result = null;
	for( int i = 0; result == null && i < states.length; i++ ) {
	if( states[ i ].matches( severity ) ) {
	result = states[ i ].getMessage();
	}
	}
	return result;
	}

	////////////////
	// Handle events

	private void handleBrowseEntryPoint() {
	EntryPointSelectionDialog dialog
	= new EntryPointSelectionDialog( getShell() );
	if( dialog.open() == Window.OK ) {
	Object[] selection = dialog.getResult();
	EntryPointExtension entryPoint = ( EntryPointExtension )selection[ 0 ];
	txtEntryPoint.setText( entryPoint.getParameter() );
	}
	}

	private void handleBrowseServletName() {
	ServletNameSelectionDialog dialog
	= new ServletNameSelectionDialog( getShell() );
	if( dialog.open() == Window.OK ) {
	Object[] selection = dialog.getResult();
	BrandingExtension branding = ( BrandingExtension )selection[ 0 ];
	txtServletName.setText( branding.getServletName() );
	String defaultEntryPointId = branding.getDefaultEntryPointId();
	String parameter = null;
	try {
	EntryPointExtension defaultEntryPoint
	= EntryPointExtension.findById( defaultEntryPointId );
	if( defaultEntryPoint != null ) {
	parameter = defaultEntryPoint.getParameter();
	}
	} catch( CoreException e ) {
	String msg = "Failed to obtain default entry point from branding";
	ErrorUtil.show( msg, e );
	}
	if( txtEntryPoint.getText().length() == 0 && parameter != null ) {
	txtEntryPoint.setText( parameter );
	}
	}
	}

	private void handleBrowserPrefsLink() {
	PreferenceDialog dialog
	= PreferencesUtil.createPreferenceDialogOn( getShell(),
	BROWSER_PREFERENCE_PAGE,
	null,
	null );
	dialog.open();
	}

	private void handleSelectBundlesTab() {
	ILaunchConfigurationTab bundlesTab = null;
	ILaunchConfigurationTab[] tabs = getLaunchConfigurationDialog().getTabs();
	for( int i = 0; bundlesTab == null && i < tabs.length; i++ ) {
	if( tabs[ i ] instanceof BundlesTab ) {
	bundlesTab= tabs[ i ];
	}
	}
	if( bundlesTab != null ) {
	getLaunchConfigurationDialog().setActiveTab( bundlesTab );
	}
	}

	/////////////////////////////////////////////////////////
	// Helpers to get entered/selected values from UI widgets

	private BrowserMode getBrowserMode() {
	return rbExternalBrowser.getSelection()
	? BrowserMode.EXTERNAL
	: BrowserMode.INTERNAL;
	}

	private Level getLogLevel() {
	Level result = Level.OFF;
	ISelection selection = cmbLogLevel.getSelection();
	if( !selection.isEmpty() ) {
	result = ( Level )( ( IStructuredSelection )selection ).getFirstElement();
	}
	return result;
	}

	private LibraryVariant getLibraryVariant() {
	LibraryVariant result = LibraryVariant.STANDARD;
	ISelection selection = cmbLibVariant.getSelection();
	if( !selection.isEmpty() ) {
	IStructuredSelection structuredSel = ( IStructuredSelection )selection;
	result = ( LibraryVariant )structuredSel.getFirstElement();
	}
	return result;
	}

	////////////////
	// Inner classes

	private static final class LogLevelLabelProvider extends LabelProvider {
	private static final Map lables = new HashMap();
	static {
	lables.put( Level.ALL, "All" );
	lables.put( Level.OFF, "Off" );
	lables.put( Level.CONFIG, "Config" );
	lables.put( Level.WARNING, "Warning" );
	lables.put( Level.SEVERE, "Severe" );
	lables.put( Level.FINE, "Fine" );
	lables.put( Level.FINER, "Finer" );
	lables.put( Level.FINEST, "Finest" );
	lables.put( Level.INFO, "Info" );
	}
	public String getText( final Object element ) {
	String result = ( String )lables.get( element );
	if( result == null ) {
	result = super.getText( element );
	}
	return result;
	}
	}

	private static final class LibraryVariantLabelProvider extends LabelProvider {
	public String getText( final Object element ) {
	String result;
	if( LibraryVariant.STANDARD.equals( element ) ) {
	result = "Standard";
	} else if( LibraryVariant.DEBUG.equals( element ) ) {
	result = "Debug";
	} else {
	result = super.getText( element );
	}
	return result;
	}
	}
	}