core/plugins/org.eclipse.dltk.debug.ui/src/org/eclipse/dltk/debug/ui/breakpoints/ScriptBreakpointPropertyPage.java - dltk/org.eclipse.dltk.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2005, 2017 IBM Corporation and others.
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
  * http://www.eclipse.org/legal/epl-2.0.
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  *******************************************************************************/
 package org.eclipse.dltk.debug.ui.breakpoints;

 import org.eclipse.core.resources.IMarker;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.debug.core.DebugPlugin;
 import org.eclipse.dltk.core.DLTKCore;
 import org.eclipse.dltk.core.IDLTKLanguageToolkit;
 import org.eclipse.dltk.core.IScriptProject;
 import org.eclipse.dltk.debug.core.model.IScriptBreakpoint;
 import org.eclipse.dltk.debug.ui.DLTKDebugUILanguageManager;
 import org.eclipse.dltk.debug.ui.DLTKDebugUIPlugin;
 import org.eclipse.dltk.debug.ui.IDLTKDebugUILanguageToolkit;
 import org.eclipse.dltk.debug.ui.IDLTKDebugUILanguageToolkit2;
 import org.eclipse.dltk.debug.ui.breakpoints.IScriptBreakpointPropertyPageExtension.IScriptBreakpointPropertyPageExtensionEditor;
 import org.eclipse.dltk.internal.ui.editor.ScriptSourceViewer;
 import org.eclipse.dltk.ui.IDLTKUILanguageToolkit;
 import org.eclipse.dltk.ui.text.ScriptSourceViewerConfiguration;
 import org.eclipse.dltk.ui.util.SWTFactory;
 import org.eclipse.dltk.utils.TextUtils;
 import org.eclipse.jface.text.Document;
 import org.eclipse.jface.text.IDocument;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.KeyAdapter;
 import org.eclipse.swt.events.KeyEvent;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Color;
 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.Group;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.dialogs.PropertyPage;

 public class ScriptBreakpointPropertyPage extends PropertyPage {

 	private static final int UPDATE_INITIAL = 0;
 	private static final int UPDATE_EXPRESSION_ENABLE = 1;
 	private static final int UPDATE_OTHER = 2;

 	// Enabled
 	private Button enabledBreakpointButton;

 	// Hit count checking
 	private Button hitCountCheckingButton;
 	private Combo hitConditionCombo;
 	private Text hitValueText;

 	private IScriptBreakpointPropertyPageExtensionEditor extraEditor;

 	// Expression
 	private ScriptSourceViewer expressionViewer;
 	private Button enableExpressionButton;

 	// Simple access methods
 	protected boolean getBreakointEnableState() {
 		return enabledBreakpointButton.getSelection();
 	}

 	protected boolean getEnabledHitChecking() {
 		return hitCountCheckingButton.getSelection();
 	}

 	protected void setEnabledHitChecking(boolean state) {
 		hitCountCheckingButton.setSelection(state);
 	}

 	// Hit value & condition
 	protected void setHitCondition(int condition) {
 		if (!hasOnlyGreaterOrEqualsHitCount()) {
 			hitConditionCombo.select(condition);
 		}
 	}

 	protected int getHitCondition() {
 		if (!hasOnlyGreaterOrEqualsHitCount()) {
 			return getEnabledHitChecking()
 					? hitConditionCombo.getSelectionIndex()
 					: -1;
 		}
 		return IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL;
 	}

 	protected void setHitValue(int value) {
 		hitValueText.setText(Integer.toString(value));
 	}

 	protected int getHitValue() {
 		return getEnabledHitChecking()
 				? Integer.parseInt(hitValueText.getText())
 				: -1;
 	}

 	// Expression
 	protected void setExpression(String expression) {
 		expressionViewer.getDocument().set(expression);
 	}

 	protected String getExpression() {
 		return expressionViewer.getDocument().get();
 	}

 	protected void setExpressionState(boolean state) {
 		enableExpressionButton.setSelection(state);
 	}

 	protected boolean getExpressionState() {
 		return enableExpressionButton.getSelection();
 	}

 	// Static breakpoint information
 	protected void createLabels(Composite parent) throws CoreException {
 		IScriptBreakpoint breakpoint = getBreakpoint();

 		Composite labelComposite = SWTFactory.createComposite(parent,
 				parent.getFont(), 2, 1, GridData.FILL_HORIZONTAL);

 		// Script language
 		SWTFactory.createLabel(labelComposite, BreakpointMessages.LanguageLabel,
 				1);
 		SWTFactory.createLabel(labelComposite, BreakpointUtils
 				.getLanguageToolkit(breakpoint).getLanguageName(), 1);

 		createLocationLabels(labelComposite);

 		// Id
 		SWTFactory.createLabel(labelComposite,
 				BreakpointMessages.InternalIdLabel, 1);

 		String[] engineIds = breakpoint.getIdentifiers();
 		String engineIdText = (engineIds == null || engineIds.length == 0)
 				? BreakpointMessages.InternalIdNotAvailableMessage
 				: TextUtils.join(engineIds, ',');
 		SWTFactory.createLabel(labelComposite, engineIdText, 1);

 		// Hit count
 		if (hasHitCountAttribute()) {
 			SWTFactory.createLabel(labelComposite,
 					BreakpointMessages.HitCountLabel, 1);

 			int hitCount = breakpoint.getHitCount();
 			String hitCountText = hitCount == -1
 					? BreakpointMessages.HitCountNotAvailableMessage
 					: Integer.toString(hitCount);
 			SWTFactory.createLabel(labelComposite, hitCountText, 1);
 		}

 		// from debugging engine

 		createTypeSpecificLabels(labelComposite);
 	}

 	protected void createLocationLabels(Composite parent) throws CoreException {
 		// Resource name
 		String resourceName = getBreakpointResourceName();
 		if (resourceName != null && resourceName.length() > 0) {
 			SWTFactory.createLabel(parent, getBreakpointLocationLabel(), 1);
 			SWTFactory.createLabel(parent, resourceName, 1);
 		}
 	}

 	/**
 	 * Returns the label text for the location field
 	 *
 	 * @return
 	 */
 	protected String getBreakpointLocationLabel() {
 		return BreakpointMessages.FileLabel;
 	}

 	/**
 	 * Returns the value for the location field
 	 *
 	 * @return
 	 * @throws CoreException
 	 */
 	protected String getBreakpointResourceName() throws CoreException {
 		return getBreakpoint().getResourceName();
 	}

 	protected void createTypeSpecificLabels(Composite parent)
 			throws CoreException {
 		// Nothing to do here
 	}

 	// Breakpoint information
 	protected void createButtons(Composite parent) throws CoreException {
 		Composite buttonsComposite = SWTFactory.createComposite(parent,
 				parent.getFont(), 1, 1, GridData.FILL_HORIZONTAL);

 		enabledBreakpointButton = SWTFactory.createCheckButton(buttonsComposite,
 				BreakpointMessages.EnabledLabel, null, false, 1);

 		createTypeSpecificButtons(buttonsComposite);
 	}

 	protected void createTypeSpecificButtons(Composite parent) {

 	}

 	protected void createHitCountEditor(Composite parent) {
 		Composite hitCountComposite = SWTFactory.createComposite(parent,
 				parent.getFont(), 4, 1, GridData.FILL_HORIZONTAL);

 		// Hit count checking
 		hitCountCheckingButton = SWTFactory.createCheckButton(hitCountComposite,
 				BreakpointMessages.BreakWhenHitCountLabel, null, false, 1);

 		hitCountCheckingButton.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {
 				updateControlsState(UPDATE_OTHER);
 			}
 		});

 		if (!hasOnlyGreaterOrEqualsHitCount()) {
 			hitConditionCombo = new Combo(hitCountComposite, SWT.READ_ONLY);

 			// Hit condition
 			hitConditionCombo.add(BreakpointMessages.HitConditionGreaterOrEqual,
 					IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL);

 			hitConditionCombo.add(BreakpointMessages.HitConditionEqual,
 					IScriptBreakpoint.HIT_CONDITION_EQUAL);

 			hitConditionCombo.add(BreakpointMessages.HitConditionMultiple,
 					IScriptBreakpoint.HIT_CONDITION_MULTIPLE);

 			hitConditionCombo
 					.select(IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL);

 			hitConditionCombo.addSelectionListener(new SelectionAdapter() {
 				@Override
 				public void widgetSelected(SelectionEvent e) {
 					updateControlsState(UPDATE_OTHER);
 				}
 			});

 			hitConditionCombo.setData(new GridData());
 		}

 		// Hit value
 		hitValueText = new Text(hitCountComposite, SWT.BORDER);
 		hitValueText
 				.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

 		hitValueText.addKeyListener(new KeyAdapter() {
 			@Override
 			public void keyReleased(KeyEvent e) {
 				updateControlsState(UPDATE_OTHER);
 			}
 		});

 		SWTFactory.createLabel(hitCountComposite, BreakpointMessages.HitsLabel,
 				1);
 	}

 	protected void createExpressionEditor(Composite parent) {
 		Group group = new Group(parent, SWT.NONE);
 		group.setLayout(new GridLayout(1, false));
 		group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

 		enableExpressionButton = new Button(group, SWT.CHECK);
 		enableExpressionButton.setText(BreakpointMessages.UseConditionLabel);
 		enableExpressionButton.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {
 				updateControlsState(UPDATE_EXPRESSION_ENABLE);
 			}
 		});

 		IDLTKUILanguageToolkit toolkit = BreakpointUtils
 				.getUILanguageToolkit(getBreakpoint());

 		expressionViewer = new ScriptSourceViewer(group, null, null, false,
 				SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL,
 				toolkit.getPreferenceStore());

 		IDocument document = new Document();

 		toolkit.getTextTools().setupDocumentPartitioner(document,
 				toolkit.getPartitioningId());

 		ScriptSourceViewerConfiguration config = toolkit
 				.createSourceViewerConfiguration();

 		expressionViewer.configure(config);
 		expressionViewer.setDocument(document);

 		expressionViewer.getControl()
 				.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

 	}

 	protected IScriptBreakpoint getBreakpoint() {
 		return (IScriptBreakpoint) getElement();
 	}

 	@Override
 	protected Control createContents(Composite parent) {
 		noDefaultAndApplyButton();
 		Composite composite = SWTFactory.createComposite(parent,
 				parent.getFont(), 1, 1, GridData.FILL_BOTH);

 		try {
 			createLabels(composite);
 			createButtons(composite);

 			if (hasHitCountEditor()) {
 				createHitCountEditor(composite);
 			}

 			if (hasExpressionEditor()) {
 				createExpressionEditor(composite);
 			}

 			IScriptBreakpointPropertyPageExtension extension = getBreakpointPropertyPageExtension();
 			if (extension != null) {
 				extraEditor = extension
 						.createExtraPropertyEditor(getBreakpoint());
 			}

 			loadValues();
 			updateControlsState(UPDATE_INITIAL);
 		} catch (CoreException e) {
 			DLTKDebugUIPlugin.log(e);
 		}

 		return composite;
 	}

 	protected IScriptBreakpointPropertyPageExtension getBreakpointPropertyPageExtension() {
 		IScriptBreakpoint breakpoint = getBreakpoint();
 		IMarker marker = breakpoint.getMarker();
 		if (marker != null) {
 			IProject project = marker.getResource().getProject();
 			IScriptProject scriptProject = DLTKCore.create(project);
 			IDLTKLanguageToolkit toolkit = scriptProject.getLanguageToolkit();
 			if (toolkit != null) {
 				IDLTKDebugUILanguageToolkit debugUILanguageToolkit = DLTKDebugUILanguageManager
 						.getLanguageToolkit(toolkit.getNatureId());
 				if (debugUILanguageToolkit != null
 						&& debugUILanguageToolkit instanceof IDLTKDebugUILanguageToolkit2) {
 					{
 						return ((IDLTKDebugUILanguageToolkit2) debugUILanguageToolkit)
 								.getBreakpointPropertyPageExtension();
 					}
 				}
 			}
 		}
 		return null;
 	}

 	protected boolean hasHitCountAttribute() {
 		return true;
 	}

 	protected boolean hasHitCountEditor() {
 		IScriptBreakpointPropertyPageExtension extension = getBreakpointPropertyPageExtension();
 		if (extension != null) {
 			return extension.hasHitCountEditor(getBreakpoint());
 		}
 		return true;
 	}

 	protected boolean hasOnlyGreaterOrEqualsHitCount() {
 		IScriptBreakpointPropertyPageExtension extension = getBreakpointPropertyPageExtension();
 		if (extension != null) {
 			return extension.hasOnlyGreaterOrEqualsHitCount(getBreakpoint());
 		}
 		return false;
 	}

 	protected boolean hasExpressionEditor() {
 		IScriptBreakpointPropertyPageExtension extension = getBreakpointPropertyPageExtension();
 		if (extension != null) {
 			return extension.hasExpressionEditor(getBreakpoint());
 		}
 		return true;
 	}

 	protected void loadValues() throws CoreException {
 		IScriptBreakpoint breakpoint = getBreakpoint();

 		// Enabled
 		enabledBreakpointButton.setSelection(breakpoint.isEnabled());

 		// Hit conditions
 		if (hasHitCountEditor()) {

 			final int hitValue = breakpoint.getHitValue();
 			if (hitValue != -1) {
 				setHitValue(hitValue);
 				setHitCondition(breakpoint.getHitCondition());
 				setEnabledHitChecking(true);
 			} else {
 				setEnabledHitChecking(false);
 			}
 		}

 		// Expression
 		if (hasExpressionEditor()) {
 			setExpressionState(breakpoint.getExpressionState());
 			setExpression(breakpoint.getExpression());
 		}
 		if (extraEditor != null) {
 			extraEditor.loadContents(breakpoint);
 		}
 	}

 	protected void saveValues() throws CoreException {
 		IScriptBreakpoint breakpoint = getBreakpoint();

 		breakpoint.setEnabled(getBreakointEnableState());

 		if (hasHitCountEditor()) {
 			breakpoint.setHitValue(getHitValue());
 			breakpoint.setHitCondition(getHitCondition());
 		}

 		if (hasExpressionEditor()) {
 			breakpoint.setExpression(getExpression());
 			breakpoint.setExpressionState(getExpressionState());
 		}
 		if (extraEditor != null) {
 			extraEditor.saveContents(breakpoint);
 		}
 	}

 	protected void updateControlsState(int mode) {
 		// Hit count
 		if (hasHitCountEditor()) {
 			boolean hitChecking = hitCountCheckingButton.getSelection();
 			if (!hasOnlyGreaterOrEqualsHitCount()) {
 				hitConditionCombo.setEnabled(hitChecking);
 			}
 			hitValueText.setEnabled(hitChecking);
 		}

 		// Expression
 		if (hasExpressionEditor()) {
 			boolean expressionEnabled = enableExpressionButton.getSelection();
 			Control control = expressionViewer.getControl();
 			control.setEnabled(expressionEnabled);
 			if (expressionEnabled) {
 				expressionViewer.initializeViewerColors();
 				if (mode == UPDATE_EXPRESSION_ENABLE) {
 					expressionViewer.getTextWidget().setFocus();
 				}
 			} else {
 				Color color = expressionViewer.getControl().getDisplay()
 						.getSystemColor(SWT.COLOR_WIDGET_BACKGROUND);
 				expressionViewer.getTextWidget().setBackground(color);
 			}
 		}

 		validateValues();
 	}

 	protected void validateValues() {
 		boolean valid = true;
 		String errorMessage = null;

 		if (hasHitCountEditor()) {
 			if (getEnabledHitChecking()) {
 				try {
 					getHitValue();
 				} catch (NumberFormatException e) {
 					valid = false;
 					errorMessage = BreakpointMessages.InvalidNumberOfHits;
 				}
 			}
 		}

 		setValid(valid);
 		setErrorMessage(errorMessage);
 	}

 	@Override
 	public boolean performOk() {
 		try {
 			ResourcesPlugin.getWorkspace().run(monitor -> {
 				saveValues();
 				DebugPlugin.getDefault().getBreakpointManager()
 						.fireBreakpointChanged(getBreakpoint());
 			}, null, 0, null);
 		} catch (CoreException e) {
 			DebugPlugin.log(e);
 		}

 		return super.performOk();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2005, 2017 IBM Corporation and others.
	* This program and the accompanying materials are made available under the
	* terms of the Eclipse Public License v. 2.0 which is available at
	* http://www.eclipse.org/legal/epl-2.0.
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	*******************************************************************************/
	package org.eclipse.dltk.debug.ui.breakpoints;

	import org.eclipse.core.resources.IMarker;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.debug.core.DebugPlugin;
	import org.eclipse.dltk.core.DLTKCore;
	import org.eclipse.dltk.core.IDLTKLanguageToolkit;
	import org.eclipse.dltk.core.IScriptProject;
	import org.eclipse.dltk.debug.core.model.IScriptBreakpoint;
	import org.eclipse.dltk.debug.ui.DLTKDebugUILanguageManager;
	import org.eclipse.dltk.debug.ui.DLTKDebugUIPlugin;
	import org.eclipse.dltk.debug.ui.IDLTKDebugUILanguageToolkit;
	import org.eclipse.dltk.debug.ui.IDLTKDebugUILanguageToolkit2;
	import org.eclipse.dltk.debug.ui.breakpoints.IScriptBreakpointPropertyPageExtension.IScriptBreakpointPropertyPageExtensionEditor;
	import org.eclipse.dltk.internal.ui.editor.ScriptSourceViewer;
	import org.eclipse.dltk.ui.IDLTKUILanguageToolkit;
	import org.eclipse.dltk.ui.text.ScriptSourceViewerConfiguration;
	import org.eclipse.dltk.ui.util.SWTFactory;
	import org.eclipse.dltk.utils.TextUtils;
	import org.eclipse.jface.text.Document;
	import org.eclipse.jface.text.IDocument;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.KeyAdapter;
	import org.eclipse.swt.events.KeyEvent;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Color;
	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.Group;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.dialogs.PropertyPage;

	public class ScriptBreakpointPropertyPage extends PropertyPage {

	private static final int UPDATE_INITIAL = 0;
	private static final int UPDATE_EXPRESSION_ENABLE = 1;
	private static final int UPDATE_OTHER = 2;

	// Enabled
	private Button enabledBreakpointButton;

	// Hit count checking
	private Button hitCountCheckingButton;
	private Combo hitConditionCombo;
	private Text hitValueText;

	private IScriptBreakpointPropertyPageExtensionEditor extraEditor;

	// Expression
	private ScriptSourceViewer expressionViewer;
	private Button enableExpressionButton;

	// Simple access methods
	protected boolean getBreakointEnableState() {
	return enabledBreakpointButton.getSelection();
	}

	protected boolean getEnabledHitChecking() {
	return hitCountCheckingButton.getSelection();
	}

	protected void setEnabledHitChecking(boolean state) {
	hitCountCheckingButton.setSelection(state);
	}

	// Hit value & condition
	protected void setHitCondition(int condition) {
	if (!hasOnlyGreaterOrEqualsHitCount()) {
	hitConditionCombo.select(condition);
	}
	}

	protected int getHitCondition() {
	if (!hasOnlyGreaterOrEqualsHitCount()) {
	return getEnabledHitChecking()
	? hitConditionCombo.getSelectionIndex()
	: -1;
	}
	return IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL;
	}

	protected void setHitValue(int value) {
	hitValueText.setText(Integer.toString(value));
	}

	protected int getHitValue() {
	return getEnabledHitChecking()
	? Integer.parseInt(hitValueText.getText())
	: -1;
	}

	// Expression
	protected void setExpression(String expression) {
	expressionViewer.getDocument().set(expression);
	}

	protected String getExpression() {
	return expressionViewer.getDocument().get();
	}

	protected void setExpressionState(boolean state) {
	enableExpressionButton.setSelection(state);
	}

	protected boolean getExpressionState() {
	return enableExpressionButton.getSelection();
	}

	// Static breakpoint information
	protected void createLabels(Composite parent) throws CoreException {
	IScriptBreakpoint breakpoint = getBreakpoint();

	Composite labelComposite = SWTFactory.createComposite(parent,
	parent.getFont(), 2, 1, GridData.FILL_HORIZONTAL);

	// Script language
	SWTFactory.createLabel(labelComposite, BreakpointMessages.LanguageLabel,
	1);
	SWTFactory.createLabel(labelComposite, BreakpointUtils
	.getLanguageToolkit(breakpoint).getLanguageName(), 1);

	createLocationLabels(labelComposite);

	// Id
	SWTFactory.createLabel(labelComposite,
	BreakpointMessages.InternalIdLabel, 1);

	String[] engineIds = breakpoint.getIdentifiers();
	String engineIdText = (engineIds == null \|\| engineIds.length == 0)
	? BreakpointMessages.InternalIdNotAvailableMessage
	: TextUtils.join(engineIds, ',');
	SWTFactory.createLabel(labelComposite, engineIdText, 1);

	// Hit count
	if (hasHitCountAttribute()) {
	SWTFactory.createLabel(labelComposite,
	BreakpointMessages.HitCountLabel, 1);

	int hitCount = breakpoint.getHitCount();
	String hitCountText = hitCount == -1
	? BreakpointMessages.HitCountNotAvailableMessage
	: Integer.toString(hitCount);
	SWTFactory.createLabel(labelComposite, hitCountText, 1);
	}

	// from debugging engine

	createTypeSpecificLabels(labelComposite);
	}

	protected void createLocationLabels(Composite parent) throws CoreException {
	// Resource name
	String resourceName = getBreakpointResourceName();
	if (resourceName != null && resourceName.length() > 0) {
	SWTFactory.createLabel(parent, getBreakpointLocationLabel(), 1);
	SWTFactory.createLabel(parent, resourceName, 1);
	}
	}

	/**
	* Returns the label text for the location field
	*
	* @return
	*/
	protected String getBreakpointLocationLabel() {
	return BreakpointMessages.FileLabel;
	}

	/**
	* Returns the value for the location field
	*
	* @return
	* @throws CoreException
	*/
	protected String getBreakpointResourceName() throws CoreException {
	return getBreakpoint().getResourceName();
	}

	protected void createTypeSpecificLabels(Composite parent)
	throws CoreException {
	// Nothing to do here
	}

	// Breakpoint information
	protected void createButtons(Composite parent) throws CoreException {
	Composite buttonsComposite = SWTFactory.createComposite(parent,
	parent.getFont(), 1, 1, GridData.FILL_HORIZONTAL);

	enabledBreakpointButton = SWTFactory.createCheckButton(buttonsComposite,
	BreakpointMessages.EnabledLabel, null, false, 1);

	createTypeSpecificButtons(buttonsComposite);
	}

	protected void createTypeSpecificButtons(Composite parent) {

	}

	protected void createHitCountEditor(Composite parent) {
	Composite hitCountComposite = SWTFactory.createComposite(parent,
	parent.getFont(), 4, 1, GridData.FILL_HORIZONTAL);

	// Hit count checking
	hitCountCheckingButton = SWTFactory.createCheckButton(hitCountComposite,
	BreakpointMessages.BreakWhenHitCountLabel, null, false, 1);

	hitCountCheckingButton.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	updateControlsState(UPDATE_OTHER);
	}
	});

	if (!hasOnlyGreaterOrEqualsHitCount()) {
	hitConditionCombo = new Combo(hitCountComposite, SWT.READ_ONLY);

	// Hit condition
	hitConditionCombo.add(BreakpointMessages.HitConditionGreaterOrEqual,
	IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL);

	hitConditionCombo.add(BreakpointMessages.HitConditionEqual,
	IScriptBreakpoint.HIT_CONDITION_EQUAL);

	hitConditionCombo.add(BreakpointMessages.HitConditionMultiple,
	IScriptBreakpoint.HIT_CONDITION_MULTIPLE);

	hitConditionCombo
	.select(IScriptBreakpoint.HIT_CONDITION_GREATER_OR_EQUAL);

	hitConditionCombo.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	updateControlsState(UPDATE_OTHER);
	}
	});

	hitConditionCombo.setData(new GridData());
	}

	// Hit value
	hitValueText = new Text(hitCountComposite, SWT.BORDER);
	hitValueText
	.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

	hitValueText.addKeyListener(new KeyAdapter() {
	@Override
	public void keyReleased(KeyEvent e) {
	updateControlsState(UPDATE_OTHER);
	}
	});

	SWTFactory.createLabel(hitCountComposite, BreakpointMessages.HitsLabel,
	1);
	}

	protected void createExpressionEditor(Composite parent) {
	Group group = new Group(parent, SWT.NONE);
	group.setLayout(new GridLayout(1, false));
	group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

	enableExpressionButton = new Button(group, SWT.CHECK);
	enableExpressionButton.setText(BreakpointMessages.UseConditionLabel);
	enableExpressionButton.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	updateControlsState(UPDATE_EXPRESSION_ENABLE);
	}
	});

	IDLTKUILanguageToolkit toolkit = BreakpointUtils
	.getUILanguageToolkit(getBreakpoint());

	expressionViewer = new ScriptSourceViewer(group, null, null, false,
	SWT.BORDER \| SWT.V_SCROLL \| SWT.H_SCROLL,
	toolkit.getPreferenceStore());

	IDocument document = new Document();

	toolkit.getTextTools().setupDocumentPartitioner(document,
	toolkit.getPartitioningId());

	ScriptSourceViewerConfiguration config = toolkit
	.createSourceViewerConfiguration();

	expressionViewer.configure(config);
	expressionViewer.setDocument(document);

	expressionViewer.getControl()
	.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

	}

	protected IScriptBreakpoint getBreakpoint() {
	return (IScriptBreakpoint) getElement();
	}

	@Override
	protected Control createContents(Composite parent) {
	noDefaultAndApplyButton();
	Composite composite = SWTFactory.createComposite(parent,
	parent.getFont(), 1, 1, GridData.FILL_BOTH);

	try {
	createLabels(composite);
	createButtons(composite);

	if (hasHitCountEditor()) {
	createHitCountEditor(composite);
	}

	if (hasExpressionEditor()) {
	createExpressionEditor(composite);
	}

	IScriptBreakpointPropertyPageExtension extension = getBreakpointPropertyPageExtension();
	if (extension != null) {
	extraEditor = extension
	.createExtraPropertyEditor(getBreakpoint());
	}

	loadValues();
	updateControlsState(UPDATE_INITIAL);
	} catch (CoreException e) {
	DLTKDebugUIPlugin.log(e);
	}

	return composite;
	}

	protected IScriptBreakpointPropertyPageExtension getBreakpointPropertyPageExtension() {
	IScriptBreakpoint breakpoint = getBreakpoint();
	IMarker marker = breakpoint.getMarker();
	if (marker != null) {
	IProject project = marker.getResource().getProject();
	IScriptProject scriptProject = DLTKCore.create(project);
	IDLTKLanguageToolkit toolkit = scriptProject.getLanguageToolkit();
	if (toolkit != null) {
	IDLTKDebugUILanguageToolkit debugUILanguageToolkit = DLTKDebugUILanguageManager
	.getLanguageToolkit(toolkit.getNatureId());
	if (debugUILanguageToolkit != null
	&& debugUILanguageToolkit instanceof IDLTKDebugUILanguageToolkit2) {
	{
	return ((IDLTKDebugUILanguageToolkit2) debugUILanguageToolkit)
	.getBreakpointPropertyPageExtension();
	}
	}
	}
	}
	return null;
	}

	protected boolean hasHitCountAttribute() {
	return true;
	}

	protected boolean hasHitCountEditor() {
	IScriptBreakpointPropertyPageExtension extension = getBreakpointPropertyPageExtension();
	if (extension != null) {
	return extension.hasHitCountEditor(getBreakpoint());
	}
	return true;
	}

	protected boolean hasOnlyGreaterOrEqualsHitCount() {
	IScriptBreakpointPropertyPageExtension extension = getBreakpointPropertyPageExtension();
	if (extension != null) {
	return extension.hasOnlyGreaterOrEqualsHitCount(getBreakpoint());
	}
	return false;
	}

	protected boolean hasExpressionEditor() {
	IScriptBreakpointPropertyPageExtension extension = getBreakpointPropertyPageExtension();
	if (extension != null) {
	return extension.hasExpressionEditor(getBreakpoint());
	}
	return true;
	}

	protected void loadValues() throws CoreException {
	IScriptBreakpoint breakpoint = getBreakpoint();

	// Enabled
	enabledBreakpointButton.setSelection(breakpoint.isEnabled());

	// Hit conditions
	if (hasHitCountEditor()) {

	final int hitValue = breakpoint.getHitValue();
	if (hitValue != -1) {
	setHitValue(hitValue);
	setHitCondition(breakpoint.getHitCondition());
	setEnabledHitChecking(true);
	} else {
	setEnabledHitChecking(false);
	}
	}

	// Expression
	if (hasExpressionEditor()) {
	setExpressionState(breakpoint.getExpressionState());
	setExpression(breakpoint.getExpression());
	}
	if (extraEditor != null) {
	extraEditor.loadContents(breakpoint);
	}
	}

	protected void saveValues() throws CoreException {
	IScriptBreakpoint breakpoint = getBreakpoint();

	breakpoint.setEnabled(getBreakointEnableState());

	if (hasHitCountEditor()) {
	breakpoint.setHitValue(getHitValue());
	breakpoint.setHitCondition(getHitCondition());
	}

	if (hasExpressionEditor()) {
	breakpoint.setExpression(getExpression());
	breakpoint.setExpressionState(getExpressionState());
	}
	if (extraEditor != null) {
	extraEditor.saveContents(breakpoint);
	}
	}

	protected void updateControlsState(int mode) {
	// Hit count
	if (hasHitCountEditor()) {
	boolean hitChecking = hitCountCheckingButton.getSelection();
	if (!hasOnlyGreaterOrEqualsHitCount()) {
	hitConditionCombo.setEnabled(hitChecking);
	}
	hitValueText.setEnabled(hitChecking);
	}

	// Expression
	if (hasExpressionEditor()) {
	boolean expressionEnabled = enableExpressionButton.getSelection();
	Control control = expressionViewer.getControl();
	control.setEnabled(expressionEnabled);
	if (expressionEnabled) {
	expressionViewer.initializeViewerColors();
	if (mode == UPDATE_EXPRESSION_ENABLE) {
	expressionViewer.getTextWidget().setFocus();
	}
	} else {
	Color color = expressionViewer.getControl().getDisplay()
	.getSystemColor(SWT.COLOR_WIDGET_BACKGROUND);
	expressionViewer.getTextWidget().setBackground(color);
	}
	}

	validateValues();
	}

	protected void validateValues() {
	boolean valid = true;
	String errorMessage = null;

	if (hasHitCountEditor()) {
	if (getEnabledHitChecking()) {
	try {
	getHitValue();
	} catch (NumberFormatException e) {
	valid = false;
	errorMessage = BreakpointMessages.InvalidNumberOfHits;
	}
	}
	}

	setValid(valid);
	setErrorMessage(errorMessage);
	}

	@Override
	public boolean performOk() {
	try {
	ResourcesPlugin.getWorkspace().run(monitor -> {
	saveValues();
	DebugPlugin.getDefault().getBreakpointManager()
	.fireBreakpointChanged(getBreakpoint());
	}, null, 0, null);
	} catch (CoreException e) {
	DebugPlugin.log(e);
	}

	return super.performOk();
	}
	}