/*
* Copyright (c) 2011 Google Inc.
*
* 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
*/
package com.google.eclipse.protobuf.ui.editor;
import static org.eclipse.core.runtime.Status.OK_STATUS;
import static org.eclipse.xtext.ui.editor.Messages.XtextEditorErrorTickUpdater_JobName;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.progress.UIJob;
import org.eclipse.xtext.ui.PluginImageHelper;
import org.eclipse.xtext.ui.editor.IXtextEditorCallback.NullImpl;
import org.eclipse.xtext.ui.editor.SchedulingRuleFactory;
import org.eclipse.xtext.ui.editor.XtextEditor;
import com.google.inject.Inject;
/**
* @author alruiz@google.com (Alex Ruiz)
*/
public class FileOutsideWorkspaceIconUpdater extends NullImpl {
private static final ISchedulingRule SEQUENCE_RULE = SchedulingRuleFactory.INSTANCE.newSequence();
@Inject private PluginImageHelper imageHelper;
@Override public void afterSetInput(XtextEditor editor) {
IEditorInput editorInput = editor.getEditorInput();
IResource resource = (IResource) editorInput.getAdapter(IResource.class);
if (resource == null) {
UpdateEditorImageJob job = new UpdateEditorImageJob();
job.scheduleFor(editor, imageHelper.getImage("pb-ro.gif"));
}
}
private static class UpdateEditorImageJob extends UIJob {
private XtextEditor editor;
private Image titleImage;
public UpdateEditorImageJob() {
super(XtextEditorErrorTickUpdater_JobName);
setRule(SEQUENCE_RULE);
}
@Override public IStatus runInUIThread(final IProgressMonitor monitor) {
IEditorSite site = null != editor ? editor.getEditorSite() : null;
if (site != null) {
if (!monitor.isCanceled() && titleImage != null && !titleImage.isDisposed() && editor != null) {
editor.updatedTitleImage(titleImage);
}
}
return OK_STATUS;
}
void scheduleFor(XtextEditor newEditor, Image newTitleImage) {
cancel();
editor = newEditor;
titleImage = newTitleImage;
schedule();
}
}
}