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/*******************************************************************************
* Copyright (c) 2011 Wind River Systems, Inc. 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:
* William Chen (Wind River)- [345387]Open the remote files with a proper editor
*******************************************************************************/
package org.eclipse.tm.te.tcf.filesystem.internal.handlers;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.tm.te.tcf.filesystem.internal.nls.Messages;
import org.eclipse.tm.te.tcf.filesystem.model.FSTreeNode;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.ui.ide.IDE;
/**
* The action handler to open a file on the remote file system.
*/
public class OpenFileHandler extends AbstractHandler {
/* (non-Javadoc)
* @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getActiveMenuSelectionChecked(event);
final FSTreeNode node = (FSTreeNode) selection.getFirstElement();
IWorkbenchPage page = HandlerUtil.getActiveSite(event).getPage();
if (ContentTypeHelper.getInstance().isBinaryFile(node)) {
// If the file is a binary file.
Shell parent = HandlerUtil.getActiveShell(event);
MessageDialog.openWarning(parent, Messages.OpenFileHandler_Warning, Messages.OpenFileHandler_OpeningBinaryNotSupported);
} else {
// Open the file node.
openFile(node, page);
}
return null;
}
/**
* Open the file node in an editor of the specified workbench page. If the
* local cache file of the node is stale, then download it. Then open its
* local cache file.
*
* @param node
* The file node to be opened.
* @param page
* The workbench page in which the editor is opened.
*/
private void openFile(FSTreeNode node, IWorkbenchPage page) {
if (CacheManager.getInstance().isCacheStale(node)) {
// If the file node's local cache is already stale, download it.
Shell parent = page.getWorkbenchWindow().getShell();
boolean successful = CacheManager.getInstance().download(node, parent);
if (successful) openEditor(page, node);
} else {
openEditor(page, node);
}
}
/**
* Open the editor to display the file node in the UI thread.
*
* @param page
* The workbench page in which the editor is opened.
* @param node
* The file node whose local cache file is opened.
*/
private void openEditor(final IWorkbenchPage page, final FSTreeNode node) {
Display display = page.getWorkbenchWindow().getWorkbench().getDisplay();
display.asyncExec(new Runnable() {
@Override
public void run() {
IPath path = CacheManager.getInstance().getCachePath(node);
IFileStore fileStore = EFS.getLocalFileSystem().getStore(path);
try {
IDE.openEditorOnFileStore(page, fileStore);
} catch (PartInitException e) {
}
}
});
}
}
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