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/*******************************************************************************
* Copyright (c) 2000, 2015 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.search2.internal.ui.text;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.IWorkspaceRunnable;
import org.eclipse.core.filebuffers.IFileBuffer;
import org.eclipse.jface.text.Position;
import org.eclipse.search.internal.ui.SearchPlugin;
import org.eclipse.search.ui.NewSearchUI;
import org.eclipse.search.ui.text.Match;
import org.eclipse.search2.internal.ui.InternalSearchUI;
public class MarkerHighlighter extends Highlighter {
private IFile fFile;
private Map<Match, IMarker> fMatchesToAnnotations;
public MarkerHighlighter(IFile file) {
fFile= file;
fMatchesToAnnotations= new HashMap<>();
}
@Override
public void addHighlights(final Match[] matches) {
try {
SearchPlugin.getWorkspace().run(new IWorkspaceRunnable() {
@Override
public void run(IProgressMonitor monitor) throws CoreException {
for (int i = 0; i < matches.length; i++) {
IMarker marker;
marker = createMarker(matches[i]);
if (marker != null)
fMatchesToAnnotations.put(matches[i], marker);
}
}
}, fFile, IWorkspace.AVOID_UPDATE, null);
} catch (CoreException e) {
// just log the thing. There's nothing we can do anyway.
SearchPlugin.log(e.getStatus());
}
}
private IMarker createMarker(Match match) throws CoreException {
Position position= InternalSearchUI.getInstance().getPositionTracker().getCurrentPosition(match);
if (position == null) {
if (match.getOffset() < 0 || match.getLength() < 0)
return null;
position= new Position(match.getOffset(), match.getLength());
} else {
// need to clone position, can't have it twice in a document.
position= new Position(position.getOffset(), position.getLength());
}
IMarker marker= match.isFiltered()
? fFile.createMarker(SearchPlugin.FILTERED_SEARCH_MARKER)
: fFile.createMarker(NewSearchUI.SEARCH_MARKER);
HashMap<String, Integer> attributes= new HashMap<>(4);
if (match.getBaseUnit() == Match.UNIT_CHARACTER) {
attributes.put(IMarker.CHAR_START, Integer.valueOf(position.getOffset()));
attributes.put(IMarker.CHAR_END, Integer.valueOf(position.getOffset()+position.getLength()));
} else {
attributes.put(IMarker.LINE_NUMBER, Integer.valueOf(position.getOffset()));
}
marker.setAttributes(attributes);
return marker;
}
@Override
public void removeHighlights(Match[] matches) {
for (int i= 0; i < matches.length; i++) {
IMarker marker= fMatchesToAnnotations.remove(matches[i]);
if (marker != null) {
try {
marker.delete();
} catch (CoreException e) {
// just log the thing. There's nothing we can do anyway.
SearchPlugin.log(e);
}
}
}
}
@Override
public void removeAll() {
try {
fFile.deleteMarkers(NewSearchUI.SEARCH_MARKER, true, IResource.DEPTH_INFINITE);
fFile.deleteMarkers(SearchPlugin.FILTERED_SEARCH_MARKER, true, IResource.DEPTH_INFINITE);
fMatchesToAnnotations.clear();
} catch (CoreException e) {
// just log the thing. There's nothing we can do anyway.
SearchPlugin.log(e.getStatus());
}
}
@Override
protected void handleContentReplaced(IFileBuffer buffer) {
if (!buffer.getLocation().equals(fFile.getFullPath()))
return;
Match[] matches= new Match[fMatchesToAnnotations.keySet().size()];
fMatchesToAnnotations.keySet().toArray(matches);
removeAll();
addHighlights(matches);
}
}
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