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/*******************************************************************************
* Copyright (c) 2006, 2012 Wind River Systems, Inc. and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Markus Schorn - initial API and implementation
* Ed Swartz (Nokia)
*******************************************************************************/
package org.eclipse.cdt.internal.ui.viewsupport;
import java.net.URI;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.IPositionConverter;
import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.ISourceRange;
import org.eclipse.cdt.core.model.ISourceReference;
import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.internal.core.model.ext.ICElementHandle;
import org.eclipse.cdt.internal.ui.util.EditorUtility;
import org.eclipse.cdt.internal.ui.util.StatusLineHandler;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.Region;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPartSite;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.ide.IDE;
import org.eclipse.ui.texteditor.ITextEditor;
/**
* An utility to open editors for references or elements.
*/
public class EditorOpener {
/**
* Opens the editor selecting the given region.
*/
public static void open(IWorkbenchPage page, IFile file, IRegion region, long timestamp) {
if (file.getLocationURI() != null) {
IEditorPart editor = null;
if (timestamp == 0) {
timestamp = file.getLocalTimeStamp();
}
try {
// Bug 328321: Linked resources of closed projects report wrong location.
if (!file.exists()) {
final IWorkbenchPartSite site = page.getActivePart().getSite();
showStatus(site, 3000, NLS.bind(Messages.EditorOpener_fileDoesNotExist, file.getName()));
return;
}
editor = IDE.openEditor(page, file, false);
} catch (PartInitException e) {
CUIPlugin.log(e);
}
selectRegion(file.getFullPath(), region, timestamp, editor);
}
}
private static void showStatus(final IWorkbenchPartSite site, int duration, String msg) {
StatusLineHandler.showStatusLineMessage(site, msg);
Display.getCurrent().timerExec(duration, () -> StatusLineHandler.clearStatusLine(site));
}
private static void selectRegion(IPath filebufferKey, IRegion region, long timestamp, IEditorPart editor) {
if (editor instanceof ITextEditor) {
ITextEditor te = (ITextEditor) editor;
IPositionConverter pc = CCorePlugin.getPositionTrackerManager().findPositionConverter(filebufferKey,
timestamp);
if (pc != null) {
region = pc.historicToActual(region);
}
te.selectAndReveal(region.getOffset(), region.getLength());
}
}
private static void selectRegion(URI locationURI, IRegion region, long timestamp, IEditorPart editor) {
if (editor instanceof ITextEditor) {
ITextEditor te = (ITextEditor) editor;
IPositionConverter pc = CCorePlugin.getPositionTrackerManager().findPositionConverter(locationURI,
timestamp);
if (pc != null) {
region = pc.historicToActual(region);
}
te.selectAndReveal(region.getOffset(), region.getLength());
}
}
/**
* Opens the editor for an external location, selecting the given region.
*/
public static void openExternalFile(IWorkbenchPage page, IPath location, IRegion region, long timestamp) {
IEditorPart editor = null;
try {
editor = EditorUtility.openInEditor(location, null);
if (timestamp == 0) {
timestamp = location.toFile().lastModified();
}
selectRegion(location, region, timestamp, editor);
} catch (PartInitException e) {
CUIPlugin.log(e);
}
}
/**
* Opens the editor for an external EFS location, selecting the given region.
*/
public static void openExternalFile(IWorkbenchPage page, URI locationURI, IRegion region, long timestamp,
ICElement context) {
IEditorPart editor = null;
try {
editor = EditorUtility.openInEditor(locationURI, context);
if (timestamp == 0) {
try {
timestamp = EFS.getStore(locationURI).fetchInfo().getLastModified();
} catch (CoreException e) {
CUIPlugin.log(e);
}
}
selectRegion(locationURI, region, timestamp, editor);
} catch (PartInitException e) {
CUIPlugin.log(e);
}
}
/**
* Opens the editor for an ICElement, selecting the id.
* @throws CModelException
*/
public static void open(IWorkbenchPage page, ICElement element) throws CModelException {
if (element instanceof ISourceReference) {
ISourceReference sr = (ISourceReference) element;
ITranslationUnit tu = sr.getTranslationUnit();
ISourceRange range = sr.getSourceRange();
long timestamp = 0; // last modified of file.
if (tu.isWorkingCopy() || element instanceof ICElementHandle) {
timestamp = -1;
}
open(page, tu, new Region(range.getIdStartPos(), range.getIdLength()), timestamp);
}
}
/**
* Opens the editor for an ICElement, selecting the given region.
*/
public static void open(IWorkbenchPage page, ITranslationUnit tu, Region region, long timestamp) {
if (tu != null) {
IResource r = tu.getResource();
if (r instanceof IFile) {
if (r.getLocationURI() != null) {
EditorOpener.open(page, (IFile) r, region, timestamp);
}
} else {
IPath location = tu.getPath();
if (location != null) {
EditorOpener.openExternalFile(page, location, region, timestamp);
}
}
}
}
}
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