dsf-gdb/org.eclipse.cdt.dsf.gdb.ui/src/org/eclipse/cdt/dsf/gdb/internal/ui/tracepointactions/TracepointActionDialog.java - cdt/org.eclipse.cdt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2010, 2015 Nokia and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     Nokia - initial API and implementation
  *******************************************************************************/
 package org.eclipse.cdt.dsf.gdb.internal.ui.tracepointactions;

 import java.util.Vector;

 import org.eclipse.cdt.debug.core.breakpointactions.IBreakpointAction;
 import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
 import org.eclipse.cdt.debug.ui.breakpointactions.IBreakpointActionPage;
 import org.eclipse.cdt.debug.ui.breakpointactions.Messages;
 import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.CollectAction;
 import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.EvaluateAction;
 import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.ITracepointAction;
 import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.TracepointActionManager;
 import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.WhileSteppingAction;
 import org.eclipse.cdt.dsf.gdb.internal.ui.GdbUIPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IConfigurationElement;
 import org.eclipse.core.runtime.IExtension;
 import org.eclipse.core.runtime.IExtensionPoint;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.fieldassist.ControlDecoration;
 import org.eclipse.jface.fieldassist.FieldDecorationRegistry;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.StackLayout;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;

 /**
  * @since 2.1
  */
 public class TracepointActionDialog extends Dialog {

 	public static final String BREAKPOINT_ACTION_PAGE_EXTENSION_POINT_ID = "BreakpointActionPage"; //$NON-NLS-1$

 	private static final String ACTION_PAGE_ELEMENT = "actionPage"; //$NON-NLS-1$

 	private static final String TRACEPOINT_ACTION_DIALOG_LAST_SELECTED = "TracepointActionDialog.lastSelectedAction"; //$NON-NLS-1$

 	private static final int TRACEPOINT_ACTIONS_COUNT = 3;

 	private Composite actionArea;
 	private Composite[] actionComposites;
 	private ITracepointAction tracepointAction;
 	private IBreakpointActionPage actionPage;
 	private Vector<ITracepointAction> tracepointActions;
 	private IBreakpointActionPage[] actionPages;
 	private String actionName;
 	private Text actionNameTextWidget;
 	private Combo combo;
 	private Composite dialogArea;
 	private int lastSelectedActionTypeIndex;
 	private IBreakpointAction originalAction;
 	private boolean isSubAction;

 	// If this dialog is for a "while-stepping" action, we keep track
 	// of the parent global list, so that it can be updated.
 	private TracepointGlobalActionsList parentGlobalList;

 	private IExtension[] breakpointActionPageExtensions;

 	private static final Point MINIMUM_SIZE = new Point(440, 540);

 	/**
 	 * Create the dialog
 	 */
 	public TracepointActionDialog(Shell parentShell, ITracepointAction action, TracepointGlobalActionsList parentList,
 			boolean isSub) {
 		super(parentShell);
 		setShellStyle(getShellStyle() | SWT.MAX | SWT.RESIZE);
 		originalAction = action;
 		tracepointAction = action;
 		lastSelectedActionTypeIndex = 0;
 		isSubAction = isSub;
 		parentGlobalList = parentList;
 	}

 	@Override
 	protected void cancelPressed() {
 		actionPage.actionDialogCanceled();
 		super.cancelPressed();
 	}

 	@Override
 	protected void configureShell(Shell newShell) {
 		super.configureShell(newShell);
 		if (originalAction == null)
 			newShell.setText(MessagesForTracepointActions.TracepointActions_ActionDialog_New);
 		else
 			newShell.setText(originalAction.getName());
 	}

 	/**
 	 * Create contents of the button bar
 	 */
 	@Override
 	protected void createButtonsForButtonBar(Composite parent) {
 		createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
 		createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
 	}

 	/**
 	 * Create contents of the dialog
 	 */
 	@Override
 	protected Control createDialogArea(final Composite parent) {
 		dialogArea = (Composite) super.createDialogArea(parent);
 		final GridLayout gridLayout = new GridLayout();
 		gridLayout.numColumns = 2;
 		dialogArea.setLayout(gridLayout);

 		final Label actionNameLabel = new Label(dialogArea, SWT.NONE);
 		actionNameLabel.setText(MessagesForTracepointActions.TracepointActions_ActionDialog_Name);

 		actionNameTextWidget = new Text(dialogArea, SWT.BORDER);
 		addDecorator(dialogArea, actionNameTextWidget);

 		final Label breakpointActionTypeLabel = new Label(dialogArea, SWT.NONE);
 		breakpointActionTypeLabel.setText(MessagesForTracepointActions.TracepointActions_ActionDialog_Type);

 		combo = new Combo(dialogArea, SWT.READ_ONLY);
 		combo.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(final SelectionEvent e) {
 				try {
 					showActionComposite();
 					Point p = parent.computeSize(MINIMUM_SIZE.x, MINIMUM_SIZE.y);
 					getShell().setSize(getShell().computeSize(p.x, p.y));
 				} catch (CoreException e1) {
 				}
 			}
 		});
 		combo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

 		tracepointActions = new Vector<>(TRACEPOINT_ACTIONS_COUNT);
 		tracepointActions.add(new CollectAction());
 		tracepointActions.add(new EvaluateAction());
 		// Sub actions of whileStepping cannot be whileStepping
 		if (!isSubAction)
 			tracepointActions.add(new WhileSteppingAction());

 		actionPages = new IBreakpointActionPage[TRACEPOINT_ACTIONS_COUNT];
 		actionComposites = new Composite[TRACEPOINT_ACTIONS_COUNT];

 		if (!tracepointActions.isEmpty()) {

 			String lastTypeName = GdbUIPlugin.getDefault().getPreferenceStore()
 					.getString(TRACEPOINT_ACTION_DIALOG_LAST_SELECTED);

 			if (tracepointAction != null) {
 				lastTypeName = tracepointAction.getTypeName();
 				actionName = tracepointAction.getName();
 			}

 			for (int i = 0; i < tracepointActions.size(); i++) {
 				tracepointActions.get(i).setName(tracepointActions.get(i).getDefaultName());
 				String actionTypeName = tracepointActions.get(i).getTypeName();
 				combo.add(actionTypeName);
 				if (actionTypeName.equals(lastTypeName)) {
 					lastSelectedActionTypeIndex = i;
 					if (tracepointAction != null) {
 						tracepointActions.add(i, tracepointAction);
 						tracepointActions.remove(i + 1);
 					}
 				}
 			}

 			combo.select(lastSelectedActionTypeIndex);
 			if (originalAction != null)
 				combo.setEnabled(false);

 			actionArea = new Composite(dialogArea, SWT.NONE);
 			actionArea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
 			actionArea.setLayout(new StackLayout());
 			try {
 				showActionComposite();
 			} catch (CoreException e) {
 				e.printStackTrace();
 			}
 		}

 		return dialogArea;
 	}

 	public IBreakpointAction getTracepointAction() {
 		return tracepointAction;
 	}

 	public String getActionName() {
 		return actionName;
 	}

 	/**
 	 * Return the initial size of the dialog
 	 */
 	@Override
 	protected Point getInitialSize() {
 		return MINIMUM_SIZE;
 	}

 	@Override
 	protected void okPressed() {
 		if (originalAction == null)
 			GdbUIPlugin.getDefault().getPreferenceStore().setValue(TRACEPOINT_ACTION_DIALOG_LAST_SELECTED,
 					tracepointAction.getTypeName());
 		String newName = actionNameTextWidget.getText();
 		if (originalAction == null || !originalAction.getName().equals(newName)) {
 			actionName = TracepointActionManager.getInstance().makeUniqueActionName(newName);
 			tracepointAction.setName(actionName);
 		}
 		actionPage.actionDialogOK();
 		super.okPressed();
 	}

 	void showActionComposite() throws CoreException {
 		// Find the selected extension
 		int selectedTypeIndex = combo.getSelectionIndex();
 		lastSelectedActionTypeIndex = selectedTypeIndex;
 		tracepointAction = tracepointActions.get(selectedTypeIndex);

 		actionPage = actionPages[selectedTypeIndex];
 		if (actionPage == null) {
 			actionPages[selectedTypeIndex] = getActionPage(tracepointActions.get(selectedTypeIndex));
 			actionPage = actionPages[selectedTypeIndex];
 			if (actionPage instanceof WhileSteppingActionPage) {
 				((WhileSteppingActionPage) actionPage).setParentGlobalList(parentGlobalList);
 			}
 		}
 		if (actionComposites[selectedTypeIndex] == null) {
 			Composite actionComposite = actionPages[selectedTypeIndex].createComposite(tracepointAction, actionArea,
 					SWT.NONE);
 			actionComposites[selectedTypeIndex] = actionComposite;
 		}
 		actionName = tracepointAction.getName();

 		actionNameTextWidget.setText(actionName);
 		StackLayout stacklayout = (StackLayout) actionArea.getLayout();
 		stacklayout.topControl = actionComposites[selectedTypeIndex];
 		actionArea.layout();
 	}

 	public IExtension[] getBreakpointActionPageExtensions() {
 		if (breakpointActionPageExtensions == null) {
 			IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(CDebugUIPlugin.PLUGIN_ID,
 					BREAKPOINT_ACTION_PAGE_EXTENSION_POINT_ID);
 			if (point == null)
 				breakpointActionPageExtensions = new IExtension[0];
 			else {
 				breakpointActionPageExtensions = point.getExtensions();
 			}
 		}

 		return breakpointActionPageExtensions;
 	}

 	private IBreakpointActionPage getActionPage(IBreakpointAction breakpointAction) {
 		IExtension[] actionExtensions = getBreakpointActionPageExtensions();

 		IBreakpointActionPage actionPageResult = null;
 		try {

 			for (int i = 0; i < actionExtensions.length && actionPageResult == null; i++) {
 				IConfigurationElement[] elements = actionExtensions[i].getConfigurationElements();
 				for (int j = 0; j < elements.length && actionPageResult == null; j++) {
 					IConfigurationElement element = elements[j];
 					if (element.getName().equals(ACTION_PAGE_ELEMENT)) {
 						if (element.getAttribute("actionType").equals(breakpointAction.getIdentifier())) { //$NON-NLS-1$
 							actionPageResult = (IBreakpointActionPage) element.createExecutableExtension("class"); //$NON-NLS-1$
 						}
 					}
 				}
 			}

 		} catch (CoreException e) {
 		}
 		return actionPageResult;
 	}

 	private void addDecorator(Composite parent, final Text control) {
 		GridData gd = new GridData(SWT.FILL, SWT.CENTER, true, false);
 		gd.horizontalIndent = FieldDecorationRegistry.getDefault().getMaximumDecorationWidth();
 		control.setLayoutData(gd);

 		final ControlDecoration decoration = new ControlDecoration(control, SWT.TOP | SWT.LEFT, parent);
 		decoration.hide();
 		control.addModifyListener(new ModifyListener() {
 			@Override
 			public void modifyText(ModifyEvent e) {
 				String name = control.getText();
 				if (name.trim().isEmpty()) {
 					decoration.setImage(FieldDecorationRegistry.getDefault()
 							.getFieldDecoration(FieldDecorationRegistry.DEC_ERROR).getImage());
 					decoration.setDescriptionText(Messages.getString("ActionDialog.ErrEmptyName")); //$NON-NLS-1$
 					decoration.show();
 				} else {
 					decoration.hide();
 				}
 				validate();
 			}
 		});
 	}

 	private void validate() {
 		Button okButton = getButton(IDialogConstants.OK_ID);
 		if (okButton != null)
 			okButton.setEnabled(!actionNameTextWidget.getText().trim().isEmpty());
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2010, 2015 Nokia and others.
	*
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Nokia - initial API and implementation
	*******************************************************************************/
	package org.eclipse.cdt.dsf.gdb.internal.ui.tracepointactions;

	import java.util.Vector;

	import org.eclipse.cdt.debug.core.breakpointactions.IBreakpointAction;
	import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
	import org.eclipse.cdt.debug.ui.breakpointactions.IBreakpointActionPage;
	import org.eclipse.cdt.debug.ui.breakpointactions.Messages;
	import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.CollectAction;
	import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.EvaluateAction;
	import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.ITracepointAction;
	import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.TracepointActionManager;
	import org.eclipse.cdt.dsf.gdb.internal.tracepointactions.WhileSteppingAction;
	import org.eclipse.cdt.dsf.gdb.internal.ui.GdbUIPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IConfigurationElement;
	import org.eclipse.core.runtime.IExtension;
	import org.eclipse.core.runtime.IExtensionPoint;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.fieldassist.ControlDecoration;
	import org.eclipse.jface.fieldassist.FieldDecorationRegistry;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.StackLayout;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Point;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;

	/**
	* @since 2.1
	*/
	public class TracepointActionDialog extends Dialog {

	public static final String BREAKPOINT_ACTION_PAGE_EXTENSION_POINT_ID = "BreakpointActionPage"; //$NON-NLS-1$

	private static final String ACTION_PAGE_ELEMENT = "actionPage"; //$NON-NLS-1$

	private static final String TRACEPOINT_ACTION_DIALOG_LAST_SELECTED = "TracepointActionDialog.lastSelectedAction"; //$NON-NLS-1$

	private static final int TRACEPOINT_ACTIONS_COUNT = 3;

	private Composite actionArea;
	private Composite[] actionComposites;
	private ITracepointAction tracepointAction;
	private IBreakpointActionPage actionPage;
	private Vector<ITracepointAction> tracepointActions;
	private IBreakpointActionPage[] actionPages;
	private String actionName;
	private Text actionNameTextWidget;
	private Combo combo;
	private Composite dialogArea;
	private int lastSelectedActionTypeIndex;
	private IBreakpointAction originalAction;
	private boolean isSubAction;

	// If this dialog is for a "while-stepping" action, we keep track
	// of the parent global list, so that it can be updated.
	private TracepointGlobalActionsList parentGlobalList;

	private IExtension[] breakpointActionPageExtensions;

	private static final Point MINIMUM_SIZE = new Point(440, 540);

	/**
	* Create the dialog
	*/
	public TracepointActionDialog(Shell parentShell, ITracepointAction action, TracepointGlobalActionsList parentList,
	boolean isSub) {
	super(parentShell);
	setShellStyle(getShellStyle() \| SWT.MAX \| SWT.RESIZE);
	originalAction = action;
	tracepointAction = action;
	lastSelectedActionTypeIndex = 0;
	isSubAction = isSub;
	parentGlobalList = parentList;
	}

	@Override
	protected void cancelPressed() {
	actionPage.actionDialogCanceled();
	super.cancelPressed();
	}

	@Override
	protected void configureShell(Shell newShell) {
	super.configureShell(newShell);
	if (originalAction == null)
	newShell.setText(MessagesForTracepointActions.TracepointActions_ActionDialog_New);
	else
	newShell.setText(originalAction.getName());
	}

	/**
	* Create contents of the button bar
	*/
	@Override
	protected void createButtonsForButtonBar(Composite parent) {
	createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
	createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
	}

	/**
	* Create contents of the dialog
	*/
	@Override
	protected Control createDialogArea(final Composite parent) {
	dialogArea = (Composite) super.createDialogArea(parent);
	final GridLayout gridLayout = new GridLayout();
	gridLayout.numColumns = 2;
	dialogArea.setLayout(gridLayout);

	final Label actionNameLabel = new Label(dialogArea, SWT.NONE);
	actionNameLabel.setText(MessagesForTracepointActions.TracepointActions_ActionDialog_Name);

	actionNameTextWidget = new Text(dialogArea, SWT.BORDER);
	addDecorator(dialogArea, actionNameTextWidget);

	final Label breakpointActionTypeLabel = new Label(dialogArea, SWT.NONE);
	breakpointActionTypeLabel.setText(MessagesForTracepointActions.TracepointActions_ActionDialog_Type);

	combo = new Combo(dialogArea, SWT.READ_ONLY);
	combo.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(final SelectionEvent e) {
	try {
	showActionComposite();
	Point p = parent.computeSize(MINIMUM_SIZE.x, MINIMUM_SIZE.y);
	getShell().setSize(getShell().computeSize(p.x, p.y));
	} catch (CoreException e1) {
	}
	}
	});
	combo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

	tracepointActions = new Vector<>(TRACEPOINT_ACTIONS_COUNT);
	tracepointActions.add(new CollectAction());
	tracepointActions.add(new EvaluateAction());
	// Sub actions of whileStepping cannot be whileStepping
	if (!isSubAction)
	tracepointActions.add(new WhileSteppingAction());

	actionPages = new IBreakpointActionPage[TRACEPOINT_ACTIONS_COUNT];
	actionComposites = new Composite[TRACEPOINT_ACTIONS_COUNT];

	if (!tracepointActions.isEmpty()) {

	String lastTypeName = GdbUIPlugin.getDefault().getPreferenceStore()
	.getString(TRACEPOINT_ACTION_DIALOG_LAST_SELECTED);

	if (tracepointAction != null) {
	lastTypeName = tracepointAction.getTypeName();
	actionName = tracepointAction.getName();
	}

	for (int i = 0; i < tracepointActions.size(); i++) {
	tracepointActions.get(i).setName(tracepointActions.get(i).getDefaultName());
	String actionTypeName = tracepointActions.get(i).getTypeName();
	combo.add(actionTypeName);
	if (actionTypeName.equals(lastTypeName)) {
	lastSelectedActionTypeIndex = i;
	if (tracepointAction != null) {
	tracepointActions.add(i, tracepointAction);
	tracepointActions.remove(i + 1);
	}
	}
	}

	combo.select(lastSelectedActionTypeIndex);
	if (originalAction != null)
	combo.setEnabled(false);

	actionArea = new Composite(dialogArea, SWT.NONE);
	actionArea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
	actionArea.setLayout(new StackLayout());
	try {
	showActionComposite();
	} catch (CoreException e) {
	e.printStackTrace();
	}
	}

	return dialogArea;
	}

	public IBreakpointAction getTracepointAction() {
	return tracepointAction;
	}

	public String getActionName() {
	return actionName;
	}

	/**
	* Return the initial size of the dialog
	*/
	@Override
	protected Point getInitialSize() {
	return MINIMUM_SIZE;
	}

	@Override
	protected void okPressed() {
	if (originalAction == null)
	GdbUIPlugin.getDefault().getPreferenceStore().setValue(TRACEPOINT_ACTION_DIALOG_LAST_SELECTED,
	tracepointAction.getTypeName());
	String newName = actionNameTextWidget.getText();
	if (originalAction == null \|\| !originalAction.getName().equals(newName)) {
	actionName = TracepointActionManager.getInstance().makeUniqueActionName(newName);
	tracepointAction.setName(actionName);
	}
	actionPage.actionDialogOK();
	super.okPressed();
	}

	void showActionComposite() throws CoreException {
	// Find the selected extension
	int selectedTypeIndex = combo.getSelectionIndex();
	lastSelectedActionTypeIndex = selectedTypeIndex;
	tracepointAction = tracepointActions.get(selectedTypeIndex);

	actionPage = actionPages[selectedTypeIndex];
	if (actionPage == null) {
	actionPages[selectedTypeIndex] = getActionPage(tracepointActions.get(selectedTypeIndex));
	actionPage = actionPages[selectedTypeIndex];
	if (actionPage instanceof WhileSteppingActionPage) {
	((WhileSteppingActionPage) actionPage).setParentGlobalList(parentGlobalList);
	}
	}
	if (actionComposites[selectedTypeIndex] == null) {
	Composite actionComposite = actionPages[selectedTypeIndex].createComposite(tracepointAction, actionArea,
	SWT.NONE);
	actionComposites[selectedTypeIndex] = actionComposite;
	}
	actionName = tracepointAction.getName();

	actionNameTextWidget.setText(actionName);
	StackLayout stacklayout = (StackLayout) actionArea.getLayout();
	stacklayout.topControl = actionComposites[selectedTypeIndex];
	actionArea.layout();
	}

	public IExtension[] getBreakpointActionPageExtensions() {
	if (breakpointActionPageExtensions == null) {
	IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(CDebugUIPlugin.PLUGIN_ID,
	BREAKPOINT_ACTION_PAGE_EXTENSION_POINT_ID);
	if (point == null)
	breakpointActionPageExtensions = new IExtension[0];
	else {
	breakpointActionPageExtensions = point.getExtensions();
	}
	}

	return breakpointActionPageExtensions;
	}

	private IBreakpointActionPage getActionPage(IBreakpointAction breakpointAction) {
	IExtension[] actionExtensions = getBreakpointActionPageExtensions();

	IBreakpointActionPage actionPageResult = null;
	try {

	for (int i = 0; i < actionExtensions.length && actionPageResult == null; i++) {
	IConfigurationElement[] elements = actionExtensions[i].getConfigurationElements();
	for (int j = 0; j < elements.length && actionPageResult == null; j++) {
	IConfigurationElement element = elements[j];
	if (element.getName().equals(ACTION_PAGE_ELEMENT)) {
	if (element.getAttribute("actionType").equals(breakpointAction.getIdentifier())) { //$NON-NLS-1$
	actionPageResult = (IBreakpointActionPage) element.createExecutableExtension("class"); //$NON-NLS-1$
	}
	}
	}
	}

	} catch (CoreException e) {
	}
	return actionPageResult;
	}

	private void addDecorator(Composite parent, final Text control) {
	GridData gd = new GridData(SWT.FILL, SWT.CENTER, true, false);
	gd.horizontalIndent = FieldDecorationRegistry.getDefault().getMaximumDecorationWidth();
	control.setLayoutData(gd);

	final ControlDecoration decoration = new ControlDecoration(control, SWT.TOP \| SWT.LEFT, parent);
	decoration.hide();
	control.addModifyListener(new ModifyListener() {
	@Override
	public void modifyText(ModifyEvent e) {
	String name = control.getText();
	if (name.trim().isEmpty()) {
	decoration.setImage(FieldDecorationRegistry.getDefault()
	.getFieldDecoration(FieldDecorationRegistry.DEC_ERROR).getImage());
	decoration.setDescriptionText(Messages.getString("ActionDialog.ErrEmptyName")); //$NON-NLS-1$
	decoration.show();
	} else {
	decoration.hide();
	}
	validate();
	}
	});
	}

	private void validate() {
	Button okButton = getButton(IDialogConstants.OK_ID);
	if (okButton != null)
	okButton.setEnabled(!actionNameTextWidget.getText().trim().isEmpty());
	}
	}