/**
* Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
* Licensed under the terms of the Eclipse Public License (EPL).
* Please see the license.txt included with this distribution for details.
* Any modifications to this file must keep this entire header intact.
*/
package org.python.pydev.ui.actions.container;
import java.io.ByteArrayInputStream;
import java.util.Set;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.text.IDocument;
import org.python.pydev.core.FileUtilsFileBuffer;
import org.python.pydev.core.docutils.StringUtils;
import org.python.pydev.core.docutils.SyntaxErrorException;
import org.python.pydev.core.log.Log;
import org.python.pydev.editor.actions.PyAction;
import org.python.pydev.editor.actions.PyFormatStd;
import org.python.pydev.editor.codecompletion.revisited.PythonPathHelper;
import org.python.pydev.parser.prettyprinterv2.IFormatter;
import com.aptana.shared_core.utils.RunInUiThread;
/**
* Action used to apply source code formatting to all the available python files.
*
* @author Fabio
*/
public class PySourceFormatAction extends PyContainerAction {
/**
* This is the class that'll be used for doing the source formatting
* (only valid after beforeRun() and before afterRun()).
*/
private IFormatter formatter;
/**
* Set with the open files (only valid after beforeRun() and before afterRun())
*/
private Set<IFile> openFiles;
/**
* We need UI access because of opened editors.
*/
protected boolean needsUIThread() {
return false;
}
/**
* Initialize the open files and the formatter to be used.
*/
@Override
protected void beforeRun() {
openFiles = PyAction.getOpenFiles();
PyFormatStd std = new PyFormatStd();
formatter = std.getFormatter();
}
/**
* Applies source code formatting to the files...
* Recursively pass the folders and delete the files (and sum them so that we know how many
* files were formatted).
*
* @param container the folder from where we want to remove the files
* @return the number of files formatted
*/
protected int doActionOnContainer(IContainer container, IProgressMonitor monitor) {
int formatted = 0;
try {
IResource[] members = container.members();
for (IResource c : members) {
if (monitor.isCanceled()) {
break;
}
monitor.worked(1);
if (c instanceof IContainer) {
formatted += this.doActionOnContainer((IContainer) c, monitor);
} else if (c instanceof IFile) {
final String name = c.getName();
if (name != null) {
monitor.setTaskName("Formatting: " + name);
if (PythonPathHelper.isValidSourceFile(name)) {
IFile file = (IFile) c;
final IDocument doc = FileUtilsFileBuffer.getDocFromResource(c);
final boolean isOpenedFile = openFiles.contains(file);
try {
if (isOpenedFile) {
RunInUiThread.async(new Runnable() {
public void run() {
try {
formatter.formatAll(doc, null, isOpenedFile, true);
} catch (SyntaxErrorException e) {
Log.log(IStatus.ERROR, "Could not source-format file: " + name
+ " (invalid syntax).", e);
}
}
});
} else {
formatter.formatAll(doc, null, isOpenedFile, true);
}
} catch (SyntaxErrorException e) {
Log.log(IStatus.ERROR, "Could not source-format file: " + name + " (invalid syntax).",
e);
}
formatted += 1;
if (isOpenedFile) {
//This means that it's an open buffer (let the user save it when he wants).
continue;
}
file.setContents(new ByteArrayInputStream(doc.get().getBytes()), true, true, monitor);
}
}
}
}
} catch (CoreException e) {
Log.log(e);
}
return formatted;
}
@Override
protected void afterRun(int formatted) {
openFiles = null;
formatter = null;
MessageDialog.openInformation(null, "Files formatted", com.aptana.shared_core.string.StringUtils.format("Formatted %s files.", formatted));
}
@Override
protected boolean confirmRun() {
return MessageDialog
.openConfirm(
null,
"Confirm source formatting",
"Are you sure that you want to recursively apply the source formatting to python files from the selected folder(s)?\n"
+ "\n"
+ "It'll be applied to all the file-types specified in the preferences: pydev > code style > file types.\n"
+ "\n" + "This action cannot be undone.");
}
}