/*******************************************************************************
* Copyright (c) 2012 BestSolution.at 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:
* Tom Schindl<tom.schindl@bestsolution.at> - initial API and implementation
*******************************************************************************/
package at.bestsolution.efxclipse.tooling.fxgraph.ui.hyperlinking;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.Region;
import org.eclipse.jface.text.hyperlink.IHyperlink;
import org.eclipse.ui.PartInitException;
import org.eclipse.xtext.common.types.JvmType;
import org.eclipse.xtext.common.types.access.jdt.IJavaProjectProvider;
import org.eclipse.xtext.nodemodel.INode;
import org.eclipse.xtext.nodemodel.util.NodeModelUtils;
import org.eclipse.xtext.resource.EObjectAtOffsetHelper;
import org.eclipse.xtext.resource.XtextResource;
import org.eclipse.xtext.ui.editor.hyperlinking.IHyperlinkAcceptor;
import at.bestsolution.efxclipse.tooling.fxgraph.fXGraph.ComponentDefinition;
import at.bestsolution.efxclipse.tooling.fxgraph.fXGraph.ControllerHandledValueProperty;
import at.bestsolution.efxclipse.tooling.fxgraph.fXGraph.FXGraphPackage;
import at.bestsolution.efxclipse.tooling.fxgraph.fXGraph.Model;
import at.bestsolution.efxclipse.tooling.model.FXPlugin;
import at.bestsolution.efxclipse.tooling.model.IFXCtrlClass;
import at.bestsolution.efxclipse.tooling.model.IFXCtrlEventMethod;
import com.google.inject.Inject;
public class FXGraphHyperlinkHelper extends org.eclipse.xtext.common.types.xtext.ui.TypeAwareHyperlinkHelper {
@Inject
private EObjectAtOffsetHelper eObjectAtOffsetHelper;
@Inject
private IJavaProjectProvider javaProjectProvider;
private IType getJDTType(JvmType jvmTypeRef) {
try {
IJavaProject javaProject = javaProjectProvider.getJavaProject(jvmTypeRef.eResource().getResourceSet());
return javaProject.findType(jvmTypeRef.getQualifiedName());
} catch(JavaModelException e) {
//TODO Logging
e.printStackTrace();
}
return null;
}
@Override
public IHyperlink[] createHyperlinksByOffset(XtextResource resource, int offset, boolean createMultipleHyperlinks) {
IHyperlink[] links = super.createHyperlinksByOffset(resource, offset, createMultipleHyperlinks);
EObject eo = eObjectAtOffsetHelper.resolveElementAt(resource, offset);
if( eo instanceof ControllerHandledValueProperty ) {
INode n = NodeModelUtils.getNode(eo);
if( n != null ) {
INode currentNode = NodeModelUtils.findLeafNodeAtOffset(n, offset);
List<INode> l = NodeModelUtils.findNodesForFeature(eo, FXGraphPackage.Literals.CONTROLLER_HANDLED_VALUE_PROPERTY__METHODNAME);
if( l.contains(currentNode) ) {
Region region = new Region(currentNode.getOffset(), currentNode.getLength());
Model m = (Model) eo.eResource().getContents().get(0);
if( m != null ) {
ComponentDefinition def = m.getComponentDef();
if( def != null ) {
if( def.getController() != null && def.getController().getType() != null) {
IType t = getJDTType(def.getController().getType());
if( t != null ) {
IFXCtrlClass fxClass = FXPlugin.getClassmodel().findCtrlClass(t.getJavaProject(), t);
if( fxClass != null ) {
IFXCtrlEventMethod fxp = fxClass.getAllEventMethods().get(currentNode.getText());
if( fxp != null ) {
HyperlinkImpl h = new HyperlinkImpl(region, fxp.getJavaElement());
if( links == null || links.length == 0 ) {
return new IHyperlink[] { h };
} else {
IHyperlink[] rv = new IHyperlink[links.length+1];
System.arraycopy(links, 0, rv, 0, rv.length);
rv[rv.length-1] = h;
return rv;
}
}
}
}
}
}
}
}
}
}
return links;
}
public void createHyperlinksTo(XtextResource from, Region region, EObject to, IHyperlinkAcceptor acceptor) {
super.createHyperlinksTo(from, region, to, acceptor);
}
static class HyperlinkImpl implements IHyperlink {
private final IRegion region;
private final IJavaElement element;
public HyperlinkImpl(IRegion region, IJavaElement element) {
this.region = region;
this.element = element;
}
@Override
public IRegion getHyperlinkRegion() {
return region;
}
@Override
public String getTypeLabel() {
return null;
}
@Override
public String getHyperlinkText() {
return null;
}
@Override
public void open() {
try {
JavaUI.openInEditor(element);
} catch (PartInitException | JavaModelException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}