bundles/org.eclipse.rap.rwt/src/org/eclipse/swt/internal/widgets/shellkit/ShellLCA.java - rap/org.eclipse.rap - Git at Google

 /*******************************************************************************
  * Copyright (c) 2002-2006 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.swt.internal.widgets.shellkit;

 import java.io.IOException;
 import javax.servlet.http.HttpServletRequest;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ActivateEvent;
 import org.eclipse.swt.events.ShellEvent;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.internal.widgets.*;
 import org.eclipse.swt.lifecycle.*;
 import org.eclipse.swt.widgets.*;
 import com.w4t.engine.service.ContextProvider;


 public final class ShellLCA extends AbstractWidgetLCA {

   private static final String PROP_ACTIVE_CONTROL = "activeControl";
   private static final String PROP_ACTIVE_SHELL = "activeShell";
   private static final String PROP_MODE = "mode";

   public void preserveValues( final Widget widget ) {
     ControlLCAUtil.preserveValues( ( Control )widget );
     Shell shell = ( Shell )widget;
     IWidgetAdapter adapter = WidgetUtil.getAdapter( shell );
     adapter.preserve( PROP_ACTIVE_CONTROL, getActiveControl( shell ) );
     adapter.preserve( PROP_ACTIVE_SHELL, shell.getDisplay().getActiveShell() );
     adapter.preserve( Props.TEXT, shell.getText() );
     adapter.preserve( Props.IMAGE, shell.getImage() );
     adapter.preserve( PROP_MODE, getMode( shell ) );
   }

   public void readData( final Widget widget ) {
     Shell shell = ( Shell )widget;
     ControlLCAUtil.readBounds( shell );
     if( WidgetLCAUtil.wasEventSent( shell, JSConst.EVENT_SHELL_CLOSED ) ) {
       shell.close();
     }
     processActiveShell( shell );
     processActivate( shell );
   }

   public void renderInitialization( final Widget widget ) throws IOException {
     JSWriter writer = JSWriter.getWriterFor( widget );
     // TODO [rst] Setting the "icon" property on a qx.ui.window.Window does not
     // work with the current qx version. Remove this workaround as soon as this
     // bug is fixed: http://bugzilla.qooxdoo.org/show_bug.cgi?id=87
     Shell shell = ( Shell )widget;
     Object[] args = new Object[]{
       showImage( shell ) ? getImagePath( shell.getImage() ) : ""
     };
     writer.newWidget( "org.eclipse.swt.widgets.Shell", args  );
     ControlLCAUtil.writeStyleFlags( widget );
     int style = widget.getStyle();
     if( ( style & SWT.APPLICATION_MODAL ) != 0 ) {
       writer.set( "modal", true );
     }
     if( ( style & SWT.TITLE ) != 0 ) {
       writer.call( "addState", new Object[]{ "rwt_TITLE" } );
     }
     writer.call( "fixTitlebar", new Object[ 0 ] );
     writer.set( "resizeable", ( style & SWT.RESIZE ) != 0 );
     writer.set( "showMinimize", ( style & SWT.MIN ) != 0 );
     writer.set( "showMaximize", ( style & SWT.MAX ) != 0 );
     writer.set( "showClose", ( style & SWT.CLOSE ) != 0 );
     writer.set( "alwaysOnTop", ( style & SWT.ON_TOP ) != 0 );
     writer.set( "overflow", "hidden" );
     if( shell.getParent() instanceof Shell ) {
       writer.call( "setDialogWindow", new Object[ 0 ] );
     }
     ControlLCAUtil.writeResizeNotificator( widget );
     ControlLCAUtil.writeMoveNotificator( widget );
     writer.addListener( JSConst.QX_EVENT_CHANGE_VISIBILITY,
                         JSConst.JS_SHELL_CLOSED );
   }

   public void renderChanges( final Widget widget ) throws IOException {
     Shell shell = ( Shell )widget;
     ControlLCAUtil.writeChanges( shell );
     JSWriter writer = JSWriter.getWriterFor( widget );
     if( shell.getBounds().equals( shell.getDisplay().getBounds() ) ) {
       writer.call( "maximize", new Object[ 0 ] );
     }
     if( showImage( shell ) ) {
       writeImage( shell );
     }
     writer.set( Props.TEXT, JSConst.QX_FIELD_CAPTION, shell.getText(), "" );
     writeOpen( shell );
     // Important: Order matters, writing setActive() before open() leads to
     //            strange behavior!
     writeActiveShell( shell );
     writeActiveControl( shell );
     writeMode( shell );
   }

   public void renderDispose( final Widget widget ) throws IOException {
     JSWriter writer = JSWriter.getWriterFor( widget );
     writer.call( "close", null );
     writer.dispose();
   }

   //////////////////
   // Helping methods

   private static void writeOpen( final Shell shell ) throws IOException {
     JSWriter writer = JSWriter.getWriterFor( shell );
     // TODO [rst] workaround: qx window should be opened only once.
     Boolean defValue = Boolean.FALSE;
     Boolean actValue = Boolean.valueOf( shell.getVisible() );
     if( WidgetLCAUtil.hasChanged( shell, Props.VISIBLE, actValue, defValue )
         && shell.getVisible() )
     {
       writer.call( "open", null );
     }
   }

   /////////////////////////////////////////////
   // Methods to read and write the active shell

   private static void writeActiveShell( final Shell shell ) throws IOException {
     Shell activeShell = shell.getDisplay().getActiveShell();
     boolean hasChanged
       = WidgetLCAUtil.hasChanged( shell, PROP_ACTIVE_SHELL, activeShell, null );
     if( shell == activeShell && hasChanged ) {
       JSWriter writer = JSWriter.getWriterFor( shell );
       writer.set( "active", true );
     }
   }

   private static void processActiveShell( final Shell shell ) {
     if( WidgetLCAUtil.wasEventSent( shell, JSConst.EVENT_SHELL_ACTIVATED ) ) {
       Shell lastActiveShell = shell.getDisplay().getActiveShell();
       setActiveShell( shell );
       ActivateEvent event;
       event = new ActivateEvent( lastActiveShell, ActivateEvent.DEACTIVATED );
       event.processEvent();
       event = new ActivateEvent( shell, ActivateEvent.ACTIVATED );
       event.processEvent();
       ShellEvent shellEvent;
       shellEvent
         = new ShellEvent( lastActiveShell, ShellEvent.SHELL_DEACTIVATED );
       shellEvent.processEvent();
       shellEvent = new ShellEvent( shell, ShellEvent.SHELL_ACTIVATED );
       shellEvent.processEvent();
     } else {
       String displayId = DisplayUtil.getId( shell.getDisplay() );
       HttpServletRequest request = ContextProvider.getRequest();
       String activeShellId = request.getParameter( displayId + ".activeShell" );
       if( WidgetUtil.getId( shell ).equals( activeShellId ) ) {
         setActiveShell( shell );
       }
     }
   }

   private static void setActiveShell( final Shell shell ) {
     Object adapter = shell.getDisplay().getAdapter( IDisplayAdapter.class );
     IDisplayAdapter displayAdapter = ( IDisplayAdapter )adapter;
     displayAdapter.setActiveShell( shell );
   }

   /////////////////////////////////////////////////////
   // Methods to handle activeControl and ActivateEvents

   private static void writeActiveControl( Shell shell ) throws IOException {
     Control activeControl = getActiveControl( shell );
     String prop = PROP_ACTIVE_CONTROL;
     if( WidgetLCAUtil.hasChanged( shell, prop, activeControl, null ) ) {
       JSWriter writer = JSWriter.getWriterFor( shell );
       writer.set( "activeControl", new Object[] { activeControl } );
     }
   }

   // TODO [rh] is this safe for multiple shells?
   private static void processActivate( final Shell shell ) {
     HttpServletRequest request = ContextProvider.getRequest();
     String widgetId = request.getParameter( JSConst.EVENT_WIDGET_ACTIVATED );
     if( widgetId != null ) {
       Widget widget = WidgetUtil.find( shell, widgetId );
       if( widget != null ) {
         setActiveControl( shell, widget );
       }
     } else {
       String activeControlId
       = WidgetLCAUtil.readPropertyValue( shell, "activeControl" );
       Widget widget = WidgetUtil.find( shell, activeControlId );
       if( widget != null ) {
         setActiveControl( shell, widget );
       }
     }
   }

   private static Control getActiveControl( final Shell shell ) {
     Object adapter = shell.getAdapter( IShellAdapter.class );
     IShellAdapter shellAdapter = ( IShellAdapter )adapter;
     Control activeControl = shellAdapter.getActiveControl();
     return activeControl;
   }

   private static void setActiveControl( final Shell shell, final Widget widget )
   {
     Object adapter = shell.getAdapter( IShellAdapter.class );
     IShellAdapter shellAdapter = ( IShellAdapter )adapter;
     shellAdapter.setActiveControl( ( Control )widget );
   }

   private static void writeImage( final Shell shell ) throws IOException {
     Image image = shell.getImage();
     if( WidgetLCAUtil.hasChanged( shell, Props.IMAGE, image, null ) ) {
       JSWriter writer = JSWriter.getWriterFor( shell );
       writer.set( JSConst.QX_FIELD_ICON, getImagePath( image ) );
     }
   }

   private static boolean showImage( Shell shell) {
     return (shell.getStyle() & ( SWT.MIN | SWT.MAX | SWT.CLOSE ) ) != 0;
   }

   private static String getImagePath( Image image ) {
     return image != null ? Image.getPath( image ) : "";
   }

   private static void writeMode( final Shell shell ) throws IOException {
     Object defValue = null;
     Object newValue = getMode( shell );
     if( WidgetLCAUtil.hasChanged( shell, PROP_MODE, newValue, defValue ) ) {
       JSWriter writer = JSWriter.getWriterFor( shell );
       writer.set( "mode", newValue );
     }
   }

   private static String getMode( final Shell shell ) {
     String result = null;
     if( shell.getMinimized() ) {
       result = "minimized";
     } else if( shell.getMaximized() ) {
       result = "maximized";
     }
     return result;
   }
 }
	/*******************************************************************************
	* Copyright (c) 2002-2006 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.swt.internal.widgets.shellkit;

	import java.io.IOException;
	import javax.servlet.http.HttpServletRequest;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.ActivateEvent;
	import org.eclipse.swt.events.ShellEvent;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.internal.widgets.*;
	import org.eclipse.swt.lifecycle.*;
	import org.eclipse.swt.widgets.*;
	import com.w4t.engine.service.ContextProvider;


	public final class ShellLCA extends AbstractWidgetLCA {

	private static final String PROP_ACTIVE_CONTROL = "activeControl";
	private static final String PROP_ACTIVE_SHELL = "activeShell";
	private static final String PROP_MODE = "mode";

	public void preserveValues( final Widget widget ) {
	ControlLCAUtil.preserveValues( ( Control )widget );
	Shell shell = ( Shell )widget;
	IWidgetAdapter adapter = WidgetUtil.getAdapter( shell );
	adapter.preserve( PROP_ACTIVE_CONTROL, getActiveControl( shell ) );
	adapter.preserve( PROP_ACTIVE_SHELL, shell.getDisplay().getActiveShell() );
	adapter.preserve( Props.TEXT, shell.getText() );
	adapter.preserve( Props.IMAGE, shell.getImage() );
	adapter.preserve( PROP_MODE, getMode( shell ) );
	}

	public void readData( final Widget widget ) {
	Shell shell = ( Shell )widget;
	ControlLCAUtil.readBounds( shell );
	if( WidgetLCAUtil.wasEventSent( shell, JSConst.EVENT_SHELL_CLOSED ) ) {
	shell.close();
	}
	processActiveShell( shell );
	processActivate( shell );
	}

	public void renderInitialization( final Widget widget ) throws IOException {
	JSWriter writer = JSWriter.getWriterFor( widget );
	// TODO [rst] Setting the "icon" property on a qx.ui.window.Window does not
	// work with the current qx version. Remove this workaround as soon as this
	// bug is fixed: http://bugzilla.qooxdoo.org/show_bug.cgi?id=87
	Shell shell = ( Shell )widget;
	Object[] args = new Object[]{
	showImage( shell ) ? getImagePath( shell.getImage() ) : ""
	};
	writer.newWidget( "org.eclipse.swt.widgets.Shell", args );
	ControlLCAUtil.writeStyleFlags( widget );
	int style = widget.getStyle();
	if( ( style & SWT.APPLICATION_MODAL ) != 0 ) {
	writer.set( "modal", true );
	}
	if( ( style & SWT.TITLE ) != 0 ) {
	writer.call( "addState", new Object[]{ "rwt_TITLE" } );
	}
	writer.call( "fixTitlebar", new Object[ 0 ] );
	writer.set( "resizeable", ( style & SWT.RESIZE ) != 0 );
	writer.set( "showMinimize", ( style & SWT.MIN ) != 0 );
	writer.set( "showMaximize", ( style & SWT.MAX ) != 0 );
	writer.set( "showClose", ( style & SWT.CLOSE ) != 0 );
	writer.set( "alwaysOnTop", ( style & SWT.ON_TOP ) != 0 );
	writer.set( "overflow", "hidden" );
	if( shell.getParent() instanceof Shell ) {
	writer.call( "setDialogWindow", new Object[ 0 ] );
	}
	ControlLCAUtil.writeResizeNotificator( widget );
	ControlLCAUtil.writeMoveNotificator( widget );
	writer.addListener( JSConst.QX_EVENT_CHANGE_VISIBILITY,
	JSConst.JS_SHELL_CLOSED );
	}

	public void renderChanges( final Widget widget ) throws IOException {
	Shell shell = ( Shell )widget;
	ControlLCAUtil.writeChanges( shell );
	JSWriter writer = JSWriter.getWriterFor( widget );
	if( shell.getBounds().equals( shell.getDisplay().getBounds() ) ) {
	writer.call( "maximize", new Object[ 0 ] );
	}
	if( showImage( shell ) ) {
	writeImage( shell );
	}
	writer.set( Props.TEXT, JSConst.QX_FIELD_CAPTION, shell.getText(), "" );
	writeOpen( shell );
	// Important: Order matters, writing setActive() before open() leads to
	// strange behavior!
	writeActiveShell( shell );
	writeActiveControl( shell );
	writeMode( shell );
	}

	public void renderDispose( final Widget widget ) throws IOException {
	JSWriter writer = JSWriter.getWriterFor( widget );
	writer.call( "close", null );
	writer.dispose();
	}

	//////////////////
	// Helping methods

	private static void writeOpen( final Shell shell ) throws IOException {
	JSWriter writer = JSWriter.getWriterFor( shell );
	// TODO [rst] workaround: qx window should be opened only once.
	Boolean defValue = Boolean.FALSE;
	Boolean actValue = Boolean.valueOf( shell.getVisible() );
	if( WidgetLCAUtil.hasChanged( shell, Props.VISIBLE, actValue, defValue )
	&& shell.getVisible() )
	{
	writer.call( "open", null );
	}
	}

	/////////////////////////////////////////////
	// Methods to read and write the active shell

	private static void writeActiveShell( final Shell shell ) throws IOException {
	Shell activeShell = shell.getDisplay().getActiveShell();
	boolean hasChanged
	= WidgetLCAUtil.hasChanged( shell, PROP_ACTIVE_SHELL, activeShell, null );
	if( shell == activeShell && hasChanged ) {
	JSWriter writer = JSWriter.getWriterFor( shell );
	writer.set( "active", true );
	}
	}

	private static void processActiveShell( final Shell shell ) {
	if( WidgetLCAUtil.wasEventSent( shell, JSConst.EVENT_SHELL_ACTIVATED ) ) {
	Shell lastActiveShell = shell.getDisplay().getActiveShell();
	setActiveShell( shell );
	ActivateEvent event;
	event = new ActivateEvent( lastActiveShell, ActivateEvent.DEACTIVATED );
	event.processEvent();
	event = new ActivateEvent( shell, ActivateEvent.ACTIVATED );
	event.processEvent();
	ShellEvent shellEvent;
	shellEvent
	= new ShellEvent( lastActiveShell, ShellEvent.SHELL_DEACTIVATED );
	shellEvent.processEvent();
	shellEvent = new ShellEvent( shell, ShellEvent.SHELL_ACTIVATED );
	shellEvent.processEvent();
	} else {
	String displayId = DisplayUtil.getId( shell.getDisplay() );
	HttpServletRequest request = ContextProvider.getRequest();
	String activeShellId = request.getParameter( displayId + ".activeShell" );
	if( WidgetUtil.getId( shell ).equals( activeShellId ) ) {
	setActiveShell( shell );
	}
	}
	}

	private static void setActiveShell( final Shell shell ) {
	Object adapter = shell.getDisplay().getAdapter( IDisplayAdapter.class );
	IDisplayAdapter displayAdapter = ( IDisplayAdapter )adapter;
	displayAdapter.setActiveShell( shell );
	}

	/////////////////////////////////////////////////////
	// Methods to handle activeControl and ActivateEvents

	private static void writeActiveControl( Shell shell ) throws IOException {
	Control activeControl = getActiveControl( shell );
	String prop = PROP_ACTIVE_CONTROL;
	if( WidgetLCAUtil.hasChanged( shell, prop, activeControl, null ) ) {
	JSWriter writer = JSWriter.getWriterFor( shell );
	writer.set( "activeControl", new Object[] { activeControl } );
	}
	}

	// TODO [rh] is this safe for multiple shells?
	private static void processActivate( final Shell shell ) {
	HttpServletRequest request = ContextProvider.getRequest();
	String widgetId = request.getParameter( JSConst.EVENT_WIDGET_ACTIVATED );
	if( widgetId != null ) {
	Widget widget = WidgetUtil.find( shell, widgetId );
	if( widget != null ) {
	setActiveControl( shell, widget );
	}
	} else {
	String activeControlId
	= WidgetLCAUtil.readPropertyValue( shell, "activeControl" );
	Widget widget = WidgetUtil.find( shell, activeControlId );
	if( widget != null ) {
	setActiveControl( shell, widget );
	}
	}
	}

	private static Control getActiveControl( final Shell shell ) {
	Object adapter = shell.getAdapter( IShellAdapter.class );
	IShellAdapter shellAdapter = ( IShellAdapter )adapter;
	Control activeControl = shellAdapter.getActiveControl();
	return activeControl;
	}

	private static void setActiveControl( final Shell shell, final Widget widget )
	{
	Object adapter = shell.getAdapter( IShellAdapter.class );
	IShellAdapter shellAdapter = ( IShellAdapter )adapter;
	shellAdapter.setActiveControl( ( Control )widget );
	}

	private static void writeImage( final Shell shell ) throws IOException {
	Image image = shell.getImage();
	if( WidgetLCAUtil.hasChanged( shell, Props.IMAGE, image, null ) ) {
	JSWriter writer = JSWriter.getWriterFor( shell );
	writer.set( JSConst.QX_FIELD_ICON, getImagePath( image ) );
	}
	}

	private static boolean showImage( Shell shell) {
	return (shell.getStyle() & ( SWT.MIN \| SWT.MAX \| SWT.CLOSE ) ) != 0;
	}

	private static String getImagePath( Image image ) {
	return image != null ? Image.getPath( image ) : "";
	}

	private static void writeMode( final Shell shell ) throws IOException {
	Object defValue = null;
	Object newValue = getMode( shell );
	if( WidgetLCAUtil.hasChanged( shell, PROP_MODE, newValue, defValue ) ) {
	JSWriter writer = JSWriter.getWriterFor( shell );
	writer.set( "mode", newValue );
	}
	}

	private static String getMode( final Shell shell ) {
	String result = null;
	if( shell.getMinimized() ) {
	result = "minimized";
	} else if( shell.getMaximized() ) {
	result = "maximized";
	}
	return result;
	}
	}