| /******************************************************************************* |
| * Copyright (c) 2009-2010 David Donahue and others. |
| * 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: |
| * David Donahue - initial API, implementation and documentation |
| * Austin Riddle - improvements to widget hierarchy and data flow for |
| * consistency with SWT behavior. |
| ******************************************************************************/ |
| package org.eclipse.rap.rwt.visualization.google.internal; |
| |
| import java.io.IOException; |
| import java.util.logging.Logger; |
| |
| import org.eclipse.rap.rwt.visualization.google.Table; |
| import org.eclipse.rap.rwt.visualization.google.VisualizationWidget; |
| import org.eclipse.rwt.lifecycle.AbstractWidgetLCA; |
| import org.eclipse.rwt.lifecycle.ControlLCAUtil; |
| import org.eclipse.rwt.lifecycle.IWidgetAdapter; |
| import org.eclipse.rwt.lifecycle.JSWriter; |
| import org.eclipse.rwt.lifecycle.WidgetLCAUtil; |
| import org.eclipse.rwt.lifecycle.WidgetUtil; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Widget; |
| |
| public abstract class VisualizationWidgetLCA extends AbstractWidgetLCA { |
| protected static final String REDRAW_FUNC = "redraw"; |
| protected static final String PROP_DATA = "widgetData"; |
| protected static final String PROP_OPTIONS = "widgetOptions"; |
| |
| // private static final Logger log = Logger.getLogger(VisualizationWidgetLCA.class); |
| |
| public abstract Class getWidgetType(); |
| |
| public void renderInitialization( final Widget widget ) throws IOException { |
| JSWriter writer = JSWriter.getWriterFor( widget ); |
| String id = WidgetUtil.getId( widget ); |
| writer.newWidget( getWidgetType().getCanonicalName(), new Object[]{ |
| id |
| } ); |
| writer.set( "appearance", "composite" ); |
| writer.set( "overflow", "hidden" ); |
| ControlLCAUtil.writeStyleFlags( ( Control ) widget ); |
| } |
| |
| public void preserveValues( final Widget widget ) { |
| ControlLCAUtil.preserveValues( ( Control )widget ); |
| IWidgetAdapter adapter = WidgetUtil.getAdapter( widget ); |
| adapter.preserve( PROP_OPTIONS, ( ( VisualizationWidget )widget ).getWidgetOptions() ); |
| adapter.preserve( PROP_DATA, ( ( VisualizationWidget )widget ).getWidgetData() ); |
| // only needed for custom variants (theming) |
| // WidgetLCAUtil.preserveCustomVariant( widget ); |
| } |
| |
| public void renderChanges( final Widget widget ) throws IOException { |
| VisualizationWidget vWidget = ( VisualizationWidget )widget; |
| ControlLCAUtil.writeChanges( vWidget ); |
| JSWriter writer = JSWriter.getWriterFor( vWidget ); |
| writer.set( PROP_OPTIONS, PROP_OPTIONS, vWidget.getWidgetOptions() ); |
| writer.set( PROP_DATA, PROP_DATA, vWidget.getWidgetData() ); |
| if (vWidget.isDirty()) { |
| writer.call( REDRAW_FUNC, null ); |
| vWidget.setDirty(false); |
| } |
| } |
| |
| public void renderDispose( final Widget widget ) throws IOException { |
| JSWriter writer = JSWriter.getWriterFor( widget ); |
| writer.dispose(); |
| } |
| |
| public void createResetHandlerCalls( String typePoolId ) throws IOException { |
| } |
| |
| public String getTypePoolId( Widget widget ) { |
| return null; |
| } |
| |
| /** |
| * Respond to selection events, set the value of selectedItem on the widget Java object, |
| * and broadcast a SWT.Selection event to any listeners |
| */ |
| public void readData( final Widget widget ) { |
| if (widget==null) return; |
| VisualizationWidget visWidget = ( VisualizationWidget )widget; |
| String selectedItem = WidgetLCAUtil.readPropertyValue( visWidget, "selectedItem" ); |
| String selectedRow = WidgetLCAUtil.readPropertyValue( visWidget, "selectedRow" ); |
| String selectedColumn = WidgetLCAUtil.readPropertyValue( visWidget, "selectedColumn" ); |
| String selectedValue = WidgetLCAUtil.readPropertyValue( visWidget, "selectedValue" ); |
| if (selectedItem!=null) { |
| visWidget.setSelectedItem( selectedItem ); |
| visWidget.setSelectedRow( selectedRow ); |
| visWidget.setSelectedColumn( selectedColumn ); |
| visWidget.setSelectedValue( selectedValue ); |
| // log.debug( "VisualizationWidgetLCA.readData(): widget=" + widget + "; selectedItem=" + selectedItem); |
| ControlLCAUtil.processSelection( visWidget, null, true ); |
| } |
| } |
| } |