/*******************************************************************************
* Copyright (c) 2006, 2012 QNX Software Systems 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:
* QNX - Initial API and implementation
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.ui.indexview;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.index.IIndex;
import org.eclipse.cdt.core.index.IIndexBinding;
import org.eclipse.cdt.core.index.IIndexManager;
import org.eclipse.cdt.core.index.IIndexName;
import org.eclipse.cdt.core.index.IndexLocationFactory;
import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.CoreModel;
import org.eclipse.cdt.core.model.ICProject;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.cdt.internal.core.CCoreInternals;
import org.eclipse.cdt.internal.ui.util.EditorUtility;
/**
* @author Doug Schaefer
*
*/
public class OpenDefinitionAction extends IndexAction {
public OpenDefinitionAction(IndexView view, TreeViewer viewer) {
super(view, viewer, CUIPlugin.getResourceString("IndexView.openDefinition.name"));//$NON-NLS-1$
}
private IndexNode getBindingNode() {
ISelection selection = viewer.getSelection();
if (!(selection instanceof IStructuredSelection))
return null;
Object[] objs = ((IStructuredSelection)selection).toArray();
if (objs.length == 1 && objs[0] instanceof IndexNode) {
IndexNode node= (IndexNode) objs[0];
if (node.fObject instanceof IIndexBinding) {
return node;
}
}
return null;
}
@Override
public void run() {
IndexNode bindingNode= getBindingNode();
if (bindingNode == null) {
return;
}
try {
ICProject cproject= bindingNode.getProject();
if (cproject != null) {
IIndex index= CCorePlugin.getIndexManager().getIndex(cproject);
if (!openDefinition(cproject, bindingNode, index)) {
index= CCorePlugin.getIndexManager().getIndex(CoreModel.getDefault().getCModel().getCProjects(), IIndexManager.ADD_EXTENSION_FRAGMENTS_NAVIGATION);
openDefinition(cproject, bindingNode, index);
}
}
}
catch (CoreException e) {
CUIPlugin.log(e);
}
catch (InterruptedException e) {
}
}
private boolean openDefinition(ICProject cproject, IndexNode bindingNode, IIndex index)
throws InterruptedException, CoreException, CModelException, PartInitException {
index.acquireReadLock();
try {
if (indexView.getLastWriteAccess(cproject) != CCoreInternals.getPDOMManager().getPDOM(cproject).getLastWriteAccess()) {
return true;
}
IIndexName[] defs= index.findDefinitions((IIndexBinding) bindingNode.fObject);
if (defs.length > 0) {
showInEditor(defs[0]);
return true;
}
defs= index.findDeclarations((IIndexBinding) bindingNode.fObject);
if (defs.length > 0) {
showInEditor(defs[0]);
return true;
}
} finally {
index.releaseReadLock();
}
return false;
}
private void showInEditor(IIndexName name) throws CModelException, PartInitException, CoreException {
IPath path = IndexLocationFactory.getPath(name.getFile().getLocation());
if(path!=null) {
IEditorPart editor = EditorUtility.openInEditor(path, null);
if (editor != null && editor instanceof ITextEditor) {
ITextEditor textEditor = (ITextEditor)editor;
int nodeOffset = name.getNodeOffset();
int nodeLength = name.getNodeLength();
try {
if (nodeLength == -1) {
// This means the offset is actually a line number
IDocument document = textEditor.getDocumentProvider().getDocument(editor.getEditorInput());
nodeOffset = document.getLineOffset(nodeOffset);
nodeLength = document.getLineLength(nodeOffset);
}
textEditor.selectAndReveal(nodeOffset, nodeLength);
} catch (BadLocationException e) {
CUIPlugin.log(e);
}
}
}
}
@Override
public boolean valid() {
return getBindingNode() != null;
}
}