/*******************************************************************************
* Copyright (c) 2014 Zend Technologies 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:
* Zend Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.php.internal.ui.explorer;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.dltk.core.DLTKCore;
import org.eclipse.dltk.core.IModelElement;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.php.core.libfolders.ILibraryFolderChangeListener;
import org.eclipse.php.core.libfolders.LibraryFolderManager;
import org.eclipse.php.internal.ui.PHPUiPlugin;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.*;
/**
* A library folder change listener that updates the images of the given folders
* and all their subfolders in the PHP Explorer whenever a source folder is
* turned to library folder and vice versa.
*
* @author Kaloyan Raev
*/
public class LibraryFolderChangeListener implements
ILibraryFolderChangeListener {
public void foldersChanged(IFolder[] folders) {
try {
updatePhpExplorer(folders);
} catch (CoreException e) {
PHPUiPlugin.log(e);
}
}
/**
* Updates the visual state of the given folders and all their subfolders
* (recursively) in the PHP Explorer view.
*
* @param folders
* an array of folders to update
*
* @throws CoreException
* if any of the folders does not exist or is in a closed
* project
*/
private void updatePhpExplorer(IFolder[] folders) throws CoreException {
LibraryFolderManager lfm = LibraryFolderManager.getInstance();
final IFolder[] subfolders = lfm.getAllSubfolders(folders);
// make sure the actual update in the PHP Explorer is executed in the UI
// thread
Display.getDefault().asyncExec(new Runnable() {
@SuppressWarnings("restriction")
public void run() {
PHPExplorerPart phpExplorer = getPhpExplorer();
if (phpExplorer != null) {
TreeViewer tree = phpExplorer.getTreeViewer();
for (IFolder subfolder : subfolders) {
IModelElement element = DLTKCore.create(subfolder);
if (element != null) {
tree.update(element, null);
}
}
}
}
});
}
/**
* Returns a reference to the PHP Explorer view part.
*
* @return a reference to {@link PHPExplorerPart}, or <code>null</code> if
* none is available in the active workbench page
*/
private PHPExplorerPart getPhpExplorer() {
// find the active workbench window
IWorkbenchWindow window = PlatformUI.getWorkbench()
.getActiveWorkbenchWindow();
if (window == null)
return null;
// find the active workbench page
IWorkbenchPage page = window.getActivePage();
if (page == null)
return null;
// find the PHP Explorer in all available view references
for (IWorkbenchPartReference ref : page.getViewReferences()) {
IWorkbenchPart part = ref.getPart(false);
if (part != null && part instanceof PHPExplorerPart) {
return (PHPExplorerPart) part;
}
}
// the PHP Explorer view is not found
return null;
}
}