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/*******************************************************************************
* Copyright (c) 2015 protos software gmbh (http://www.protos.de).
* 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:
* Juergen Haug (initial contribution)
*
*******************************************************************************/
package org.eclipse.etrice.ui.common.base.support;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.etrice.doc.ContextHelpProvider;
import org.eclipse.etrice.ui.common.base.BaseImageProvider;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.ICustomContext;
import org.eclipse.graphiti.features.custom.AbstractCustomFeature;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
public class HelpFeature extends AbstractCustomFeature {
public HelpFeature(IFeatureProvider fp) {
super(fp);
}
protected String getBoClassName(PictogramElement pe) {
Object bo = getBusinessObjectForPictogramElement(pe);
if (bo instanceof EObject)
return ((EObject) bo).eClass().getName();
return null;
}
public String getFeatureId(ICustomContext context) {
if (context instanceof ICustomContext) {
ICustomContext peContext = (ICustomContext) context;
if (peContext.getPictogramElements() != null && peContext.getPictogramElements().length == 1){
PictogramElement pe = peContext.getPictogramElements()[0];
// don't show help for diagram input
if(getBusinessObjectForPictogramElement(pe) == getBusinessObjectForPictogramElement(getDiagram()))
return null;
return getBoClassName(pe);
}
}
return null;
}
@Override
public boolean canExecute(ICustomContext context) {
String featureId = getFeatureId(context);
if (featureId != null)
return ContextHelpProvider.isAvailable(featureId);
return false;
}
@Override
public void execute(ICustomContext context) {
ContextHelpProvider.showHelp(getBoClassName(((ICustomContext) context).getPictogramElements()[0]));
}
@Override
public String getName() {
return "Help";
}
@Override
public String getDescription() {
return "Open help view";
}
@Override
public String getImageId() {
return BaseImageProvider.IMG_HELP;
}
@Override
public boolean hasDoneChanges() {
return false;
}
}
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