/******************************************************************************
* Copyright (c) 2014 Oracle
* 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:
* Konstantin Komissarchik - initial implementation and ongoing maintenance
******************************************************************************/
package org.eclipse.sapphire.ui.assist.internal;
import org.eclipse.sapphire.InitialValueService;
import org.eclipse.sapphire.LocalizableText;
import org.eclipse.sapphire.Property;
import org.eclipse.sapphire.Text;
import org.eclipse.sapphire.Value;
import org.eclipse.sapphire.ui.SapphirePart;
import org.eclipse.sapphire.ui.assist.PropertyEditorAssistContext;
import org.eclipse.sapphire.ui.assist.PropertyEditorAssistContribution;
import org.eclipse.sapphire.ui.assist.PropertyEditorAssistContributor;
import org.eclipse.sapphire.ui.assist.PropertyEditorAssistSection;
import org.eclipse.sapphire.ui.forms.PropertyEditorPart;
import org.eclipse.sapphire.ui.forms.WithPart;
/**
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class RestoreInitialValueActionsAssistContributor extends PropertyEditorAssistContributor
{
@Text( "Restore initial value" )
private static LocalizableText restore;
static
{
LocalizableText.init( RestoreInitialValueActionsAssistContributor.class );
}
public RestoreInitialValueActionsAssistContributor()
{
setId( ID_RESTORE_INITIAL_VALUE_ACTIONS_CONTRIBUTOR );
setPriority( PRIORITY_RESTORE_INITIAL_VALUE_ACTIONS_CONTRIBUTOR );
}
@Override
public void contribute( final PropertyEditorAssistContext context )
{
SapphirePart part = context.getPart();
Property property = null;
if (part instanceof PropertyEditorPart)
{
property = ((PropertyEditorPart)part).property();
}
else if (part instanceof WithPart)
{
property = ((WithPart)part).property();
}
if( property == null || property.definition().isReadOnly() )
{
return;
}
if( property instanceof Value<?> )
{
final Value<?> value = (Value<?>) property;
final InitialValueService initialValueService = value.service( InitialValueService.class );
if( initialValueService != null )
{
final String initialText = initialValueService.value();
final String currentText = value.text( false );
if( initialText != null && ! initialText.equals( currentText ) )
{
final PropertyEditorAssistContribution.Factory contribution = PropertyEditorAssistContribution.factory();
contribution.text( "<p><a href=\"action\" nowrap=\"true\">" + escapeForXml( restore.text() ) + "</a></p>" );
contribution.link
(
"action",
new Runnable()
{
public void run()
{
value.write( initialText, true );
}
}
);
final PropertyEditorAssistSection section = context.getSection( SECTION_ID_ACTIONS );
section.addContribution( contribution.create() );
}
}
}
}
}