/**
* Copyright (c) 2013 Puppet Labs, Inc. and other contributors, as listed below.
* 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:
* Puppet Labs
*/
package com.puppetlabs.geppetto.pp.dsl.ui.preferences;
import com.puppetlabs.geppetto.pp.dsl.ui.builder.PPBuildJob;
import com.puppetlabs.geppetto.pp.dsl.ui.preferences.editors.AbstractPreferencePage;
import org.eclipse.core.resources.IProject;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
/**
* Adds behavior to the abstract preference page that checks if a single preference id has
* changed, and if so, triggers a clean build of the project.
*
*/
public abstract class AbstractRebuildingPreferencePage extends AbstractPreferencePage {
private IPropertyChangeListener rebuildListener;
private IPreferenceStore usedPreferenceStore;
@Override
public void dispose() {
if(isPropertyPage()) {
if(rebuildListener != null)
usedPreferenceStore.removePropertyChangeListener(rebuildListener);
}
super.dispose();
}
protected abstract String getPreferenceId();
@Override
protected void updateFieldEditors(boolean enabled) {
super.updateFieldEditors(enabled);
if(isPropertyPage()) {
if(rebuildListener == null) {
rebuildListener = new IPropertyChangeListener() {
@Override
public void propertyChange(PropertyChangeEvent event) {
if(getPreferenceId().equals(event.getProperty())) {
// System.err.println("Puppet proj env changed");
IProject proj = ((IProject) getElement());
PPBuildJob job = new PPBuildJob(proj);
job.schedule();
}
}
};
}
// protect against getting different store instances (happens at least when debugging).
IPreferenceStore store = getPreferenceStore();
if(store != usedPreferenceStore) {
if(usedPreferenceStore != null)
usedPreferenceStore.removePropertyChangeListener(rebuildListener);
usedPreferenceStore = store;
store.addPropertyChangeListener(rebuildListener);
}
}
}
}