target_explorer/plugins/org.eclipse.tcf.te.tcf.filesystem.ui/src/org/eclipse/tcf/te/tcf/filesystem/ui/internal/properties/GeneralInformationPage.java - tcf/org.eclipse.tcf - Git at Google

 /*********************************************************************************************
  * Copyright (c) 2011, 2015 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)	- [345384]Provide property pages for remote file system nodes
  *                                [361322]Minor improvements to the properties dialog of a file.
  *********************************************************************************************/
 package org.eclipse.tcf.te.tcf.filesystem.ui.internal.properties;

 import java.text.DateFormat;
 import java.text.DecimalFormat;
 import java.util.Date;

 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.jface.window.Window;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.tcf.te.tcf.filesystem.core.interfaces.runtime.IFSTreeNode;
 import org.eclipse.tcf.te.tcf.filesystem.core.interfaces.runtime.IFSTreeNodeWorkingCopy;
 import org.eclipse.tcf.te.tcf.filesystem.ui.internal.operations.UiExecutor;
 import org.eclipse.tcf.te.tcf.filesystem.ui.nls.Messages;
 import org.eclipse.ui.dialogs.PropertyPage;

 /**
  * The general information page of a file's properties dialog.
  */
 public class GeneralInformationPage extends PropertyPage {
 	// The formatter for the size of a file.
 	private static final DecimalFormat SIZE_FORMAT = new DecimalFormat();
 	// The original node.
 	IFSTreeNode node;
 	// Cloned node for modification.
 	IFSTreeNodeWorkingCopy fWorkingCopy;
 	// The button of "Read-Only"
 	Button btnReadOnly;
 	// The button of "Hidden"
 	Button btnHidden;
 	// The button of "Permissions"
 	Button[] btnPermissions;

 	/**
 	 * Create a horizontal separator between field sections.
 	 *
 	 * @param parent
 	 *            The parent composite of the separator.
 	 */
 	protected void createSeparator(Composite parent) {
 		Label label = new Label(parent, SWT.SEPARATOR | SWT.SHADOW_ETCHED_IN | SWT.HORIZONTAL);
 		GridData data = new GridData(SWT.FILL, SWT.BEGINNING, true, false);
 		data.horizontalSpan = 2;
 		label.setLayoutData(data);
 	}

 	/**
 	 * Create a field displaying the a specific value with a specific label.
 	 *
 	 * @param text
 	 *            The label text for the field.
 	 * @param value
 	 *            The value to be displayed.
 	 * @param parent
 	 *            The parent composite of the field.
 	 */
 	protected void createField(String text, String value, Composite parent) {
 		Label label = new Label(parent, SWT.NONE);
 		label.setText(text);
 		GridData data = new GridData();
 		data.horizontalAlignment = SWT.LEFT;
 		data.verticalAlignment = SWT.TOP;
 		label.setLayoutData(data);
 		Text txt = new Text(parent, SWT.WRAP | SWT.READ_ONLY);
 		data = new GridData();
 		data.verticalAlignment = SWT.TOP;
 		data.widthHint = 300;
 		data.grabExcessHorizontalSpace = true;
 		data.horizontalAlignment = GridData.FILL;
 		txt.setLayoutData(data);
 		txt.setBackground(txt.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
 		txt.setText(value);
 	}

 	/**
 	 * Get the string of the file size using using the formatter, SIZE_FORMAT.
 	 *
 	 * @param size
 	 *            The size of the file to be formatted.
 	 * @return The string in the format of SIZE_FORMAT.
 	 */
 	protected String getSizeText(long size) {
 		return NLS.bind(Messages.GeneralInformationPage_FileSizeInfo, SIZE_FORMAT.format(size / 1024), SIZE_FORMAT.format(size));
 	}

 	/**
 	 * Get the string of the specific time using the formatter, DATE_FORMAT.
 	 *
 	 * @param time
 	 *            The time to be formatted.
 	 * @return The string in the format of DATE_FORMAT.
 	 */
 	protected String getDateText(long time) {
 		DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.SHORT);
 		return dateFormat.format(new Date(time));
 	}

 	/**
 	 * Create the attributes section for a Windows file/folder.
 	 *
 	 * @param parent
 	 *            The parent composite on which it is created.
 	 */
 	protected void createAttributesSection(Composite parent) {
 		// Attributes
 		Label label = new Label(parent, SWT.NONE);
 		label.setText(Messages.GeneralInformationPage_Attributes);
 		GridData data = new GridData();
 		data.horizontalAlignment = SWT.LEFT;
 		label.setLayoutData(data);

 		Composite attr = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout(3, true);
 		layout.marginHeight = 0;
 		attr.setLayout(layout);
 		// Read-only
 		btnReadOnly = new Button(attr, SWT.CHECK);
 		btnReadOnly.setText(Messages.GeneralInformationPage_ReadOnly);
 		// Only the owner can edit this property
 		btnReadOnly.setEnabled(node.isAgentOwner());
 		btnReadOnly.addSelectionListener(new SelectionAdapter(){
 			@Override
             public void widgetSelected(SelectionEvent e) {
 				if(btnReadOnly.getSelection()!=fWorkingCopy.isReadOnly()){
 					fWorkingCopy.setReadOnly(btnReadOnly.getSelection());
 				}
             }
 		});
 		// Hidden
 		btnHidden = new Button(attr, SWT.CHECK);
 		btnHidden.setText(Messages.GeneralInformationPage_Hidden);
 		// Only the owner can edit this property
 		btnHidden.setEnabled(node.isAgentOwner());
 		btnHidden.addSelectionListener(new SelectionAdapter(){
 			@Override
             public void widgetSelected(SelectionEvent e) {
 				Button btnHidden = (Button) e.getSource();
 				fWorkingCopy.setHidden(btnHidden.getSelection());
             }
 		});
 		// Advanced Attributes
 		Button btnAdvanced = new Button(attr, SWT.PUSH);
 		btnAdvanced.setText(Messages.GeneralInformationPage_Advanced);
 		btnAdvanced.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {
 				showAdvancedAttributes();
 			}
 		});
 		// Update the attribute values.
 		updateAttributes();
 	}

 	/**
 	 * Update the value of attributes section.
 	 */
 	private void updateAttributes() {
 		btnReadOnly.setSelection(fWorkingCopy.isReadOnly());
 		btnHidden.setSelection(fWorkingCopy.isHidden());
 	}

 	/**
 	 * Show the advanced attributes dialog for the specified file/folder.
 	 */
 	void showAdvancedAttributes() {
 		AdvancedAttributesDialog dialog = new AdvancedAttributesDialog(this.getShell(), fWorkingCopy.createWorkingCopy());
 		if (dialog.open() == Window.OK) {
 			IFSTreeNodeWorkingCopy result = dialog.getResult();
 			UiExecutor.execute(result.operationCommit());
 		}
 	}

 	/**
 	 * Create the permissions section for a Unix/Linux file/folder.
 	 *
 	 * @param parent
 	 *            The parent composite on which it is created.
 	 */
 	protected void createPermissionsSection(Composite parent) {
 		GridLayout gridLayout;
 		Label label = new Label(parent, SWT.NONE);
 		label.setText(Messages.GeneralInformationPage_PermissionText);
 		GridData data = new GridData();
 		data.horizontalAlignment = SWT.LEFT;
 		data.verticalAlignment = SWT.TOP;
 		label.setLayoutData(data);
 		Composite perms = new Composite(parent, SWT.NONE);
 		gridLayout = new GridLayout(2, false);
 		gridLayout.marginHeight = 0;
 		perms.setLayout(gridLayout);
 		btnPermissions = new Button[9];
 		createPermissionGroup(perms, 0,
 				Messages.PermissionsGroup_UserPermissions);
 		createPermissionGroup(perms, 3,
 				Messages.PermissionsGroup_GroupPermissions);
 		createPermissionGroup(perms, 6,
 				Messages.PermissionsGroup_OtherPermissions);
 		// Update the permission values.
 		updatePermissions();
 	}

 	/**
 	 * Create a permission group for a role, such as a user, a group or others.
 	 *
 	 * @param parent
 	 *            The parent composite.
 	 * @param bit
 	 *            The permission bit index.
 	 * @param header
 	 *            The group's header label.
 	 */
 	protected void createPermissionGroup(Composite parent, int bit, String header) {
 		Label label = new Label(parent, SWT.NONE);
 		label.setText(header);
 		GridData data = new GridData();
 		data.horizontalAlignment = SWT.LEFT;
 		label.setLayoutData(data);
 		Composite group = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout(3, true);
 		layout.marginHeight = 0;
 		group.setLayout(layout);
 		createPermissionButton(Messages.PermissionsGroup_Readable, bit, group);
 		createPermissionButton(Messages.PermissionsGroup_Writable, bit + 1, group);
 		createPermissionButton(Messages.PermissionsGroup_Executable, bit + 2, group);
 	}

 	/**
 	 * Create a check-box field for a single permission item.
 	 *
 	 * @param label
 	 *            The label of the permission.
 	 * @param index
 	 *            The index of current permission bit mask index.
 	 * @param parent
 	 *            The parent to hold the check-box field.
 	 */
 	private void createPermissionButton(String label, final int index, Composite parent) {
 		btnPermissions[index] = new Button(parent, SWT.CHECK);
 		btnPermissions[index].setText(label);
 		// Only the owner can edit its permission.
 		btnPermissions[index].setEnabled(node.isAgentOwner());
 		btnPermissions[index].addSelectionListener(new SelectionAdapter(){
 			@Override
             public void widgetSelected(SelectionEvent e) {
 				int bit = 1 << (8 - index);
 				fWorkingCopy.setPermission(bit, btnPermissions[index].getSelection());
             }
 		});
 	}

 	/**
 	 * Update the value of permissions section.
 	 */
 	private void updatePermissions(){
 		for (int i = 0; i < 9; i++) {
 			final int bit = 1 << (8 - i);
 			btnPermissions[i].setSelection(fWorkingCopy.getPermission(bit));
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 * @see org.eclipse.jface.preference.PreferencePage#performDefaults()
 	 */
 	@Override
     protected void performDefaults() {
 		fWorkingCopy = node.createWorkingCopy();
 		if (node.isWindowsNode()) {
 			updateAttributes();
 		} else {
 			updatePermissions();
 		}
 	    super.performDefaults();
     }

 	@Override
     public boolean performOk() {
 		if (hasAttrsChanged()) {
 			UiExecutor.execute(fWorkingCopy.operationCommit());
 		}
 		return getErrorMessage() == null;
     }

 	/**
 	 * If the attributes has been changed.
 	 * @return If the attributes has been changed.
 	 */
 	private boolean hasAttrsChanged() {
 		return fWorkingCopy.isDirty();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
 	 */
 	@Override
 	protected Control createContents(Composite parent) {
 		IAdaptable element = getElement();
 		Assert.isTrue(element instanceof IFSTreeNode);

 		node = (IFSTreeNode) element;
 		fWorkingCopy = node.createWorkingCopy();
 		Composite page = new Composite(parent, SWT.NONE);
 		GridLayout gridLayout = new GridLayout(2, false);
 		page.setLayout(gridLayout);
 		// Field "Name"
 		createField(Messages.GeneralInformationPage_Name, fWorkingCopy.getName(), page);
 		// Field "Type"
 		String fileType = fWorkingCopy.getFileTypeLabel();
 		createField(Messages.GeneralInformationPage_Type, fileType, page);
 		// Field "Location"

 		String location = fWorkingCopy.isFileSystem() || fWorkingCopy.isRootDirectory() ?
 						Messages.GeneralInformationPage_Computer : fWorkingCopy.getLocation();
 		createField(Messages.GeneralInformationPage_Location, location, page);
 		// Field "Size"
 		if (fWorkingCopy.isFile()) {
 			long size = fWorkingCopy.getSize();
 			createField(Messages.GeneralInformationPage_Size, size > 0 ? getSizeText(size) : "", page); //$NON-NLS-1$
 		}
 		// Field "Modified"
 		long lm = fWorkingCopy.getModificationTime();
 		createField(Messages.GeneralInformationPage_Modified, lm != 0 ? getDateText(lm) : "", page); //$NON-NLS-1$
 		// Field "Accessed"
 		if (fWorkingCopy.isFile()) {
 			long at = fWorkingCopy.getAccessTime();
 			createField(Messages.GeneralInformationPage_Accessed, at != 0 ? getDateText(at) : "", page); //$NON-NLS-1$
 		}
 		createSeparator(page);
 		if (fWorkingCopy.isWindowsNode()) {
 			createAttributesSection(page);
 		} else {
 			createPermissionsSection(page);
 		}
 		return page;
 	}
 }
	/*********************************************************************************************
	* Copyright (c) 2011, 2015 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) - [345384]Provide property pages for remote file system nodes
	* [361322]Minor improvements to the properties dialog of a file.
	*********************************************************************************************/
	package org.eclipse.tcf.te.tcf.filesystem.ui.internal.properties;

	import java.text.DateFormat;
	import java.text.DecimalFormat;
	import java.util.Date;

	import org.eclipse.core.runtime.Assert;
	import org.eclipse.core.runtime.IAdaptable;
	import org.eclipse.jface.window.Window;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.tcf.te.tcf.filesystem.core.interfaces.runtime.IFSTreeNode;
	import org.eclipse.tcf.te.tcf.filesystem.core.interfaces.runtime.IFSTreeNodeWorkingCopy;
	import org.eclipse.tcf.te.tcf.filesystem.ui.internal.operations.UiExecutor;
	import org.eclipse.tcf.te.tcf.filesystem.ui.nls.Messages;
	import org.eclipse.ui.dialogs.PropertyPage;

	/**
	* The general information page of a file's properties dialog.
	*/
	public class GeneralInformationPage extends PropertyPage {
	// The formatter for the size of a file.
	private static final DecimalFormat SIZE_FORMAT = new DecimalFormat();
	// The original node.
	IFSTreeNode node;
	// Cloned node for modification.
	IFSTreeNodeWorkingCopy fWorkingCopy;
	// The button of "Read-Only"
	Button btnReadOnly;
	// The button of "Hidden"
	Button btnHidden;
	// The button of "Permissions"
	Button[] btnPermissions;

	/**
	* Create a horizontal separator between field sections.
	*
	* @param parent
	* The parent composite of the separator.
	*/
	protected void createSeparator(Composite parent) {
	Label label = new Label(parent, SWT.SEPARATOR \| SWT.SHADOW_ETCHED_IN \| SWT.HORIZONTAL);
	GridData data = new GridData(SWT.FILL, SWT.BEGINNING, true, false);
	data.horizontalSpan = 2;
	label.setLayoutData(data);
	}

	/**
	* Create a field displaying the a specific value with a specific label.
	*
	* @param text
	* The label text for the field.
	* @param value
	* The value to be displayed.
	* @param parent
	* The parent composite of the field.
	*/
	protected void createField(String text, String value, Composite parent) {
	Label label = new Label(parent, SWT.NONE);
	label.setText(text);
	GridData data = new GridData();
	data.horizontalAlignment = SWT.LEFT;
	data.verticalAlignment = SWT.TOP;
	label.setLayoutData(data);
	Text txt = new Text(parent, SWT.WRAP \| SWT.READ_ONLY);
	data = new GridData();
	data.verticalAlignment = SWT.TOP;
	data.widthHint = 300;
	data.grabExcessHorizontalSpace = true;
	data.horizontalAlignment = GridData.FILL;
	txt.setLayoutData(data);
	txt.setBackground(txt.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
	txt.setText(value);
	}

	/**
	* Get the string of the file size using using the formatter, SIZE_FORMAT.
	*
	* @param size
	* The size of the file to be formatted.
	* @return The string in the format of SIZE_FORMAT.
	*/
	protected String getSizeText(long size) {
	return NLS.bind(Messages.GeneralInformationPage_FileSizeInfo, SIZE_FORMAT.format(size / 1024), SIZE_FORMAT.format(size));
	}

	/**
	* Get the string of the specific time using the formatter, DATE_FORMAT.
	*
	* @param time
	* The time to be formatted.
	* @return The string in the format of DATE_FORMAT.
	*/
	protected String getDateText(long time) {
	DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.SHORT);
	return dateFormat.format(new Date(time));
	}

	/**
	* Create the attributes section for a Windows file/folder.
	*
	* @param parent
	* The parent composite on which it is created.
	*/
	protected void createAttributesSection(Composite parent) {
	// Attributes
	Label label = new Label(parent, SWT.NONE);
	label.setText(Messages.GeneralInformationPage_Attributes);
	GridData data = new GridData();
	data.horizontalAlignment = SWT.LEFT;
	label.setLayoutData(data);

	Composite attr = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout(3, true);
	layout.marginHeight = 0;
	attr.setLayout(layout);
	// Read-only
	btnReadOnly = new Button(attr, SWT.CHECK);
	btnReadOnly.setText(Messages.GeneralInformationPage_ReadOnly);
	// Only the owner can edit this property
	btnReadOnly.setEnabled(node.isAgentOwner());
	btnReadOnly.addSelectionListener(new SelectionAdapter(){
	@Override
	public void widgetSelected(SelectionEvent e) {
	if(btnReadOnly.getSelection()!=fWorkingCopy.isReadOnly()){
	fWorkingCopy.setReadOnly(btnReadOnly.getSelection());
	}
	}
	});
	// Hidden
	btnHidden = new Button(attr, SWT.CHECK);
	btnHidden.setText(Messages.GeneralInformationPage_Hidden);
	// Only the owner can edit this property
	btnHidden.setEnabled(node.isAgentOwner());
	btnHidden.addSelectionListener(new SelectionAdapter(){
	@Override
	public void widgetSelected(SelectionEvent e) {
	Button btnHidden = (Button) e.getSource();
	fWorkingCopy.setHidden(btnHidden.getSelection());
	}
	});
	// Advanced Attributes
	Button btnAdvanced = new Button(attr, SWT.PUSH);
	btnAdvanced.setText(Messages.GeneralInformationPage_Advanced);
	btnAdvanced.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	showAdvancedAttributes();
	}
	});
	// Update the attribute values.
	updateAttributes();
	}

	/**
	* Update the value of attributes section.
	*/
	private void updateAttributes() {
	btnReadOnly.setSelection(fWorkingCopy.isReadOnly());
	btnHidden.setSelection(fWorkingCopy.isHidden());
	}

	/**
	* Show the advanced attributes dialog for the specified file/folder.
	*/
	void showAdvancedAttributes() {
	AdvancedAttributesDialog dialog = new AdvancedAttributesDialog(this.getShell(), fWorkingCopy.createWorkingCopy());
	if (dialog.open() == Window.OK) {
	IFSTreeNodeWorkingCopy result = dialog.getResult();
	UiExecutor.execute(result.operationCommit());
	}
	}

	/**
	* Create the permissions section for a Unix/Linux file/folder.
	*
	* @param parent
	* The parent composite on which it is created.
	*/
	protected void createPermissionsSection(Composite parent) {
	GridLayout gridLayout;
	Label label = new Label(parent, SWT.NONE);
	label.setText(Messages.GeneralInformationPage_PermissionText);
	GridData data = new GridData();
	data.horizontalAlignment = SWT.LEFT;
	data.verticalAlignment = SWT.TOP;
	label.setLayoutData(data);
	Composite perms = new Composite(parent, SWT.NONE);
	gridLayout = new GridLayout(2, false);
	gridLayout.marginHeight = 0;
	perms.setLayout(gridLayout);
	btnPermissions = new Button[9];
	createPermissionGroup(perms, 0,
	Messages.PermissionsGroup_UserPermissions);
	createPermissionGroup(perms, 3,
	Messages.PermissionsGroup_GroupPermissions);
	createPermissionGroup(perms, 6,
	Messages.PermissionsGroup_OtherPermissions);
	// Update the permission values.
	updatePermissions();
	}

	/**
	* Create a permission group for a role, such as a user, a group or others.
	*
	* @param parent
	* The parent composite.
	* @param bit
	* The permission bit index.
	* @param header
	* The group's header label.
	*/
	protected void createPermissionGroup(Composite parent, int bit, String header) {
	Label label = new Label(parent, SWT.NONE);
	label.setText(header);
	GridData data = new GridData();
	data.horizontalAlignment = SWT.LEFT;
	label.setLayoutData(data);
	Composite group = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout(3, true);
	layout.marginHeight = 0;
	group.setLayout(layout);
	createPermissionButton(Messages.PermissionsGroup_Readable, bit, group);
	createPermissionButton(Messages.PermissionsGroup_Writable, bit + 1, group);
	createPermissionButton(Messages.PermissionsGroup_Executable, bit + 2, group);
	}

	/**
	* Create a check-box field for a single permission item.
	*
	* @param label
	* The label of the permission.
	* @param index
	* The index of current permission bit mask index.
	* @param parent
	* The parent to hold the check-box field.
	*/
	private void createPermissionButton(String label, final int index, Composite parent) {
	btnPermissions[index] = new Button(parent, SWT.CHECK);
	btnPermissions[index].setText(label);
	// Only the owner can edit its permission.
	btnPermissions[index].setEnabled(node.isAgentOwner());
	btnPermissions[index].addSelectionListener(new SelectionAdapter(){
	@Override
	public void widgetSelected(SelectionEvent e) {
	int bit = 1 << (8 - index);
	fWorkingCopy.setPermission(bit, btnPermissions[index].getSelection());
	}
	});
	}

	/**
	* Update the value of permissions section.
	*/
	private void updatePermissions(){
	for (int i = 0; i < 9; i++) {
	final int bit = 1 << (8 - i);
	btnPermissions[i].setSelection(fWorkingCopy.getPermission(bit));
	}
	}

	/*
	* (non-Javadoc)
	* @see org.eclipse.jface.preference.PreferencePage#performDefaults()
	*/
	@Override
	protected void performDefaults() {
	fWorkingCopy = node.createWorkingCopy();
	if (node.isWindowsNode()) {
	updateAttributes();
	} else {
	updatePermissions();
	}
	super.performDefaults();
	}

	@Override
	public boolean performOk() {
	if (hasAttrsChanged()) {
	UiExecutor.execute(fWorkingCopy.operationCommit());
	}
	return getErrorMessage() == null;
	}

	/**
	* If the attributes has been changed.
	* @return If the attributes has been changed.
	*/
	private boolean hasAttrsChanged() {
	return fWorkingCopy.isDirty();
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
	*/
	@Override
	protected Control createContents(Composite parent) {
	IAdaptable element = getElement();
	Assert.isTrue(element instanceof IFSTreeNode);

	node = (IFSTreeNode) element;
	fWorkingCopy = node.createWorkingCopy();
	Composite page = new Composite(parent, SWT.NONE);
	GridLayout gridLayout = new GridLayout(2, false);
	page.setLayout(gridLayout);
	// Field "Name"
	createField(Messages.GeneralInformationPage_Name, fWorkingCopy.getName(), page);
	// Field "Type"
	String fileType = fWorkingCopy.getFileTypeLabel();
	createField(Messages.GeneralInformationPage_Type, fileType, page);
	// Field "Location"

	String location = fWorkingCopy.isFileSystem() \|\| fWorkingCopy.isRootDirectory() ?
	Messages.GeneralInformationPage_Computer : fWorkingCopy.getLocation();
	createField(Messages.GeneralInformationPage_Location, location, page);
	// Field "Size"
	if (fWorkingCopy.isFile()) {
	long size = fWorkingCopy.getSize();
	createField(Messages.GeneralInformationPage_Size, size > 0 ? getSizeText(size) : "", page); //$NON-NLS-1$
	}
	// Field "Modified"
	long lm = fWorkingCopy.getModificationTime();
	createField(Messages.GeneralInformationPage_Modified, lm != 0 ? getDateText(lm) : "", page); //$NON-NLS-1$
	// Field "Accessed"
	if (fWorkingCopy.isFile()) {
	long at = fWorkingCopy.getAccessTime();
	createField(Messages.GeneralInformationPage_Accessed, at != 0 ? getDateText(at) : "", page); //$NON-NLS-1$
	}
	createSeparator(page);
	if (fWorkingCopy.isWindowsNode()) {
	createAttributesSection(page);
	} else {
	createPermissionsSection(page);
	}
	return page;
	}
	}