plugins/org.eclipse.wst.server.ui/serverui/org/eclipse/wst/server/ui/internal/view/servers/RenameAction.java - servertools/webtools.servertools - Git at Google

 /*******************************************************************************
  * Copyright (c) 2007 IBM Corporation 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:
  *     IBM Corporation - Initial API and implementation
  *******************************************************************************/
 package org.eclipse.wst.server.ui.internal.view.servers;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.viewers.ISelectionProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.TreeEditor;
 import org.eclipse.swt.events.FocusAdapter;
 import org.eclipse.swt.events.FocusEvent;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.swt.widgets.Tree;
 import org.eclipse.swt.widgets.TreeItem;
 import org.eclipse.ui.actions.TextActionHandler;
 import org.eclipse.ui.texteditor.IWorkbenchActionDefinitionIds;

 import org.eclipse.wst.server.core.IServer;
 import org.eclipse.wst.server.core.IServerWorkingCopy;
 import org.eclipse.wst.server.core.internal.ServerPlugin;
 import org.eclipse.wst.server.ui.internal.Messages;
 /**
  * Action to rename a server.
  */
 public class RenameAction extends AbstractServerAction {
 	/*
 	 * The tree editing widgets. If treeEditor is null then edit using the
 	 * dialog. We keep the editorText around so that we can close it if a new
 	 * selection is made.
 	 */
 	protected TreeEditor treeEditor;

 	protected Tree tree;

 	protected Text textEditor;

 	protected Composite textEditorParent;

 	private TextActionHandler textActionHandler;

 	// The server being edited if this is being done inline
 	protected IServer editedServer;

 	protected boolean saving = false;

 	public RenameAction(Shell shell, TreeViewer viewer, ISelectionProvider selectionProvider) {
 		super(shell, selectionProvider, Messages.actionRename);
 		setActionDefinitionId(IWorkbenchActionDefinitionIds.RENAME);
 		this.tree = viewer.getTree();
 		this.treeEditor = new TreeEditor(tree);
 		try {
 			selectionChanged((IStructuredSelection) selectionProvider.getSelection());
 		} catch (Exception e) {
 			// ignore
 		}
 	}

 	public void perform(IServer server) {
 		runWithInlineEditor(server);
 	}

 	/*
 	 * Run the receiver using an inline editor from the supplied navigator. The
 	 * navigator will tell the action when the path is ready to run.
 	 */
 	private void runWithInlineEditor(IServer server) {
 		queryNewServerNameInline(server);
 	}

 	/**
 	 * On Mac the text widget already provides a border when it has focus, so
 	 * there is no need to draw another one. The value of returned by this
 	 * method is usd to control the inset we apply to the text field bound's in
 	 * order to get space for drawing a border. A value of 1 means a one-pixel
 	 * wide border around the text field. A negative value supresses the border.
 	 * However, in M9 the system property
 	 * "org.eclipse.swt.internal.carbon.noFocusRing" has been introduced as a
 	 * temporary workaround for bug #28842. The existence of the property turns
 	 * the native focus ring off if the widget is contained in a main window
 	 * (not dialog). The check for the property should be removed after a final
 	 * fix for #28842 has been provided.
 	 */
 	private static int getCellEditorInset(Control c) {
 		// special case for MacOS X
 		if ("carbon".equals(SWT.getPlatform())) { //$NON-NLS-1$
 			if (System
 					.getProperty("org.eclipse.swt.internal.carbon.noFocusRing") == null || c.getShell().getParent() != null) { //$NON-NLS-1$
 				return -2; // native border
 			}
 		}
 		return 1; // one pixel wide black border
 	}

 	/**
 	 * Get the Tree being edited.
 	 *
 	 * @returnTree
 	 */
 	private Tree getTree() {
 		return tree;
 	}

 	private Composite createParent() {
 		Tree tree2 = getTree();
 		Composite result = new Composite(tree2, SWT.NONE);
 		TreeItem[] selectedItems = tree2.getSelection();
 		treeEditor.horizontalAlignment = SWT.LEFT;
 		treeEditor.grabHorizontal = true;
 		treeEditor.setEditor(result, selectedItems[0]);
 		return result;
 	}

 	/**
 	 * Return the new name to be given to the target resource or
 	 * <code>null<code>
 	 * if the query was canceled. Rename the currently selected server using the table editor.
 	 * Continue the action when the user is done.
 	 *
 	 * @param server the server to rename
 	 */
 	private void queryNewServerNameInline(final IServer server) {
 		// Make sure text editor is created only once. Simply reset text
 		// editor when action is executed more than once. Fixes bug 22269
 		if (textEditorParent == null) {
 			createTextEditor(server);
 		}
 		textEditor.setText(server.getName());

 		// Open text editor with initial size
 		textEditorParent.setVisible(true);
 		Point textSize = textEditor.computeSize(SWT.DEFAULT, SWT.DEFAULT);
 		textSize.x += textSize.y; // Add extra space for new characters
 		Point parentSize = textEditorParent.getSize();
 		int inset = getCellEditorInset(textEditorParent);
 		textEditor.setBounds(2, inset, Math.min(textSize.x, parentSize.x - 4),
 				parentSize.y - 2 * inset);
 		textEditorParent.redraw();
 		textEditor.selectAll();
 		textEditor.setFocus();
 	}

 	/**
 	 * Create the text editor widget.
 	 *
 	 * @param server the server to rename
 	 */
 	private void createTextEditor(final IServer server) {
 		// Create text editor parent. This draws a nice bounding rect
 		textEditorParent = createParent();
 		textEditorParent.setVisible(false);
 		final int inset = getCellEditorInset(textEditorParent);
 		if (inset > 0) {
 			textEditorParent.addListener(SWT.Paint, new Listener() {
 				public void handleEvent(Event e) {
 					Point textSize = textEditor.getSize();
 					Point parentSize = textEditorParent.getSize();
 					e.gc.drawRectangle(0, 0, Math.min(textSize.x + 4,
 							parentSize.x - 1), parentSize.y - 1);
 				}
 			});
 		}
 		// Create inner text editor
 		textEditor = new Text(textEditorParent, SWT.NONE);
 		textEditor.setFont(tree.getFont());
 		textEditorParent.setBackground(textEditor.getBackground());
 		textEditor.addListener(SWT.Modify, new Listener() {
 			public void handleEvent(Event e) {
 				Point textSize = textEditor.computeSize(SWT.DEFAULT,
 						SWT.DEFAULT);
 				textSize.x += textSize.y; // Add extra space for new
 				// characters.
 				Point parentSize = textEditorParent.getSize();
 				textEditor.setBounds(2, inset, Math.min(textSize.x,
 						parentSize.x - 4), parentSize.y - 2 * inset);
 				textEditorParent.redraw();
 			}
 		});
 		textEditor.addListener(SWT.Traverse, new Listener() {
 			public void handleEvent(Event event) {

 				// Workaround for Bug 20214 due to extra
 				// traverse events
 				switch (event.detail) {
 				case SWT.TRAVERSE_ESCAPE:
 					// Do nothing in this case
 					disposeTextWidget();
 					event.doit = true;
 					event.detail = SWT.TRAVERSE_NONE;
 					break;
 				case SWT.TRAVERSE_RETURN:
 					saveChangesAndDispose(server);
 					event.doit = true;
 					event.detail = SWT.TRAVERSE_NONE;
 					break;
 				}
 			}
 		});
 		textEditor.addFocusListener(new FocusAdapter() {
 			public void focusLost(FocusEvent fe) {
 				saveChangesAndDispose(server);
 			}
 		});

 		if (textActionHandler != null) {
 			textActionHandler.addText(textEditor);
 		}
 	}

 	/**
 	 * Close the text widget and reset the editorText field.
 	 */
 	protected void disposeTextWidget() {
 		if (textActionHandler != null)
 			textActionHandler.removeText(textEditor);

 		if (textEditorParent != null) {
 			textEditorParent.dispose();
 			textEditorParent = null;
 			textEditor = null;
 			treeEditor.setEditor(null, null);
 		}
 	}

 	/**
 	 * Save the changes and dispose of the text widget.
 	 *
 	 * @param server the server to rename
 	 */
 	protected void saveChangesAndDispose(IServer server) {
 		if (saving == true)
 			return;

 		saving = true;
 		// Cache the resource to avoid selection loss since a selection of
 		// another item can trigger this method
 		editedServer = server;
 		final String newName = textEditor.getText();
 		// Run this in an async to make sure that the operation that triggered
 		// this action is completed. Otherwise this leads to problems when the
 		// icon of the item being renamed is clicked (i.e., which causes the
 		// rename text widget to lose focus and trigger this method)
 		getTree().getShell().getDisplay().asyncExec(new Runnable() {
 			public void run() {
 				try {
 					if (!newName.equals(editedServer.getName())) {
 						if (ServerPlugin.isNameInUse(editedServer, newName)) {
 							MessageDialog.openError(shell, Messages.defaultDialogTitle, Messages.errorDuplicateName);
 						} else {
 							try {
 								IServerWorkingCopy wc = editedServer.createWorkingCopy();
 								wc.setName(newName);
 								wc.save(false, null);
 							} catch (CoreException ce) {
 								// ignore for now
 							}
 						}
 					}
 					editedServer = null;
 					// Dispose the text widget regardless
 					disposeTextWidget();
 					// Ensure the Navigator tree has focus, which it may not if
 					// the text widget previously had focus
 					if (tree != null && !tree.isDisposed()) {
 						tree.setFocus();
 					}
 				} finally {
 					saving = false;
 				}
 			}
 		});
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2007 IBM Corporation 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:
	* IBM Corporation - Initial API and implementation
	*******************************************************************************/
	package org.eclipse.wst.server.ui.internal.view.servers;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.viewers.ISelectionProvider;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.TreeEditor;
	import org.eclipse.swt.events.FocusAdapter;
	import org.eclipse.swt.events.FocusEvent;
	import org.eclipse.swt.graphics.Point;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.swt.widgets.Tree;
	import org.eclipse.swt.widgets.TreeItem;
	import org.eclipse.ui.actions.TextActionHandler;
	import org.eclipse.ui.texteditor.IWorkbenchActionDefinitionIds;

	import org.eclipse.wst.server.core.IServer;
	import org.eclipse.wst.server.core.IServerWorkingCopy;
	import org.eclipse.wst.server.core.internal.ServerPlugin;
	import org.eclipse.wst.server.ui.internal.Messages;
	/**
	* Action to rename a server.
	*/
	public class RenameAction extends AbstractServerAction {
	/*
	* The tree editing widgets. If treeEditor is null then edit using the
	* dialog. We keep the editorText around so that we can close it if a new
	* selection is made.
	*/
	protected TreeEditor treeEditor;

	protected Tree tree;

	protected Text textEditor;

	protected Composite textEditorParent;

	private TextActionHandler textActionHandler;

	// The server being edited if this is being done inline
	protected IServer editedServer;

	protected boolean saving = false;

	public RenameAction(Shell shell, TreeViewer viewer, ISelectionProvider selectionProvider) {
	super(shell, selectionProvider, Messages.actionRename);
	setActionDefinitionId(IWorkbenchActionDefinitionIds.RENAME);
	this.tree = viewer.getTree();
	this.treeEditor = new TreeEditor(tree);
	try {
	selectionChanged((IStructuredSelection) selectionProvider.getSelection());
	} catch (Exception e) {
	// ignore
	}
	}

	public void perform(IServer server) {
	runWithInlineEditor(server);
	}

	/*
	* Run the receiver using an inline editor from the supplied navigator. The
	* navigator will tell the action when the path is ready to run.
	*/
	private void runWithInlineEditor(IServer server) {
	queryNewServerNameInline(server);
	}

	/**
	* On Mac the text widget already provides a border when it has focus, so
	* there is no need to draw another one. The value of returned by this
	* method is usd to control the inset we apply to the text field bound's in
	* order to get space for drawing a border. A value of 1 means a one-pixel
	* wide border around the text field. A negative value supresses the border.
	* However, in M9 the system property
	* "org.eclipse.swt.internal.carbon.noFocusRing" has been introduced as a
	* temporary workaround for bug #28842. The existence of the property turns
	* the native focus ring off if the widget is contained in a main window
	* (not dialog). The check for the property should be removed after a final
	* fix for #28842 has been provided.
	*/
	private static int getCellEditorInset(Control c) {
	// special case for MacOS X
	if ("carbon".equals(SWT.getPlatform())) { //$NON-NLS-1$
	if (System
	.getProperty("org.eclipse.swt.internal.carbon.noFocusRing") == null \|\| c.getShell().getParent() != null) { //$NON-NLS-1$
	return -2; // native border
	}
	}
	return 1; // one pixel wide black border
	}

	/**
	* Get the Tree being edited.
	*
	* @returnTree
	*/
	private Tree getTree() {
	return tree;
	}

	private Composite createParent() {
	Tree tree2 = getTree();
	Composite result = new Composite(tree2, SWT.NONE);
	TreeItem[] selectedItems = tree2.getSelection();
	treeEditor.horizontalAlignment = SWT.LEFT;
	treeEditor.grabHorizontal = true;
	treeEditor.setEditor(result, selectedItems[0]);
	return result;
	}

	/**
	* Return the new name to be given to the target resource or
	* <code>null<code>
	* if the query was canceled. Rename the currently selected server using the table editor.
	* Continue the action when the user is done.
	*
	* @param server the server to rename
	*/
	private void queryNewServerNameInline(final IServer server) {
	// Make sure text editor is created only once. Simply reset text
	// editor when action is executed more than once. Fixes bug 22269
	if (textEditorParent == null) {
	createTextEditor(server);
	}
	textEditor.setText(server.getName());

	// Open text editor with initial size
	textEditorParent.setVisible(true);
	Point textSize = textEditor.computeSize(SWT.DEFAULT, SWT.DEFAULT);
	textSize.x += textSize.y; // Add extra space for new characters
	Point parentSize = textEditorParent.getSize();
	int inset = getCellEditorInset(textEditorParent);
	textEditor.setBounds(2, inset, Math.min(textSize.x, parentSize.x - 4),
	parentSize.y - 2 * inset);
	textEditorParent.redraw();
	textEditor.selectAll();
	textEditor.setFocus();
	}

	/**
	* Create the text editor widget.
	*
	* @param server the server to rename
	*/
	private void createTextEditor(final IServer server) {
	// Create text editor parent. This draws a nice bounding rect
	textEditorParent = createParent();
	textEditorParent.setVisible(false);
	final int inset = getCellEditorInset(textEditorParent);
	if (inset > 0) {
	textEditorParent.addListener(SWT.Paint, new Listener() {
	public void handleEvent(Event e) {
	Point textSize = textEditor.getSize();
	Point parentSize = textEditorParent.getSize();
	e.gc.drawRectangle(0, 0, Math.min(textSize.x + 4,
	parentSize.x - 1), parentSize.y - 1);
	}
	});
	}
	// Create inner text editor
	textEditor = new Text(textEditorParent, SWT.NONE);
	textEditor.setFont(tree.getFont());
	textEditorParent.setBackground(textEditor.getBackground());
	textEditor.addListener(SWT.Modify, new Listener() {
	public void handleEvent(Event e) {
	Point textSize = textEditor.computeSize(SWT.DEFAULT,
	SWT.DEFAULT);
	textSize.x += textSize.y; // Add extra space for new
	// characters.
	Point parentSize = textEditorParent.getSize();
	textEditor.setBounds(2, inset, Math.min(textSize.x,
	parentSize.x - 4), parentSize.y - 2 * inset);
	textEditorParent.redraw();
	}
	});
	textEditor.addListener(SWT.Traverse, new Listener() {
	public void handleEvent(Event event) {

	// Workaround for Bug 20214 due to extra
	// traverse events
	switch (event.detail) {
	case SWT.TRAVERSE_ESCAPE:
	// Do nothing in this case
	disposeTextWidget();
	event.doit = true;
	event.detail = SWT.TRAVERSE_NONE;
	break;
	case SWT.TRAVERSE_RETURN:
	saveChangesAndDispose(server);
	event.doit = true;
	event.detail = SWT.TRAVERSE_NONE;
	break;
	}
	}
	});
	textEditor.addFocusListener(new FocusAdapter() {
	public void focusLost(FocusEvent fe) {
	saveChangesAndDispose(server);
	}
	});

	if (textActionHandler != null) {
	textActionHandler.addText(textEditor);
	}
	}

	/**
	* Close the text widget and reset the editorText field.
	*/
	protected void disposeTextWidget() {
	if (textActionHandler != null)
	textActionHandler.removeText(textEditor);

	if (textEditorParent != null) {
	textEditorParent.dispose();
	textEditorParent = null;
	textEditor = null;
	treeEditor.setEditor(null, null);
	}
	}

	/**
	* Save the changes and dispose of the text widget.
	*
	* @param server the server to rename
	*/
	protected void saveChangesAndDispose(IServer server) {
	if (saving == true)
	return;

	saving = true;
	// Cache the resource to avoid selection loss since a selection of
	// another item can trigger this method
	editedServer = server;
	final String newName = textEditor.getText();
	// Run this in an async to make sure that the operation that triggered
	// this action is completed. Otherwise this leads to problems when the
	// icon of the item being renamed is clicked (i.e., which causes the
	// rename text widget to lose focus and trigger this method)
	getTree().getShell().getDisplay().asyncExec(new Runnable() {
	public void run() {
	try {
	if (!newName.equals(editedServer.getName())) {
	if (ServerPlugin.isNameInUse(editedServer, newName)) {
	MessageDialog.openError(shell, Messages.defaultDialogTitle, Messages.errorDuplicateName);
	} else {
	try {
	IServerWorkingCopy wc = editedServer.createWorkingCopy();
	wc.setName(newName);
	wc.save(false, null);
	} catch (CoreException ce) {
	// ignore for now
	}
	}
	}
	editedServer = null;
	// Dispose the text widget regardless
	disposeTextWidget();
	// Ensure the Navigator tree has focus, which it may not if
	// the text widget previously had focus
	if (tree != null && !tree.isDisposed()) {
	tree.setFocus();
	}
	} finally {
	saving = false;
	}
	}
	});
	}
	}