bundles/org.eclipse.wst.jsdt.debug.rhino.ui/src/org/eclipse/wst/jsdt/debug/internal/rhino/ui/launching/RhinoMainTab.java - jsdt/webtools.jsdt.debug - Git at Google

 /*******************************************************************************
  * Copyright (c) 2010, 2011 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.jsdt.debug.internal.rhino.ui.launching;

 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.debug.core.ILaunchConfiguration;
 import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
 import org.eclipse.debug.ui.AbstractLaunchConfigurationTab;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 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.Image;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.IEditorInput;
 import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.wst.jsdt.core.IJavaScriptElement;
 import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
 import org.eclipse.wst.jsdt.core.IMember;
 import org.eclipse.wst.jsdt.core.ITypeRoot;
 import org.eclipse.wst.jsdt.core.JavaScriptCore;
 import org.eclipse.wst.jsdt.debug.internal.rhino.ui.IHelpConstants;
 import org.eclipse.wst.jsdt.debug.internal.rhino.ui.ILaunchConstants;
 import org.eclipse.wst.jsdt.debug.internal.rhino.ui.ISharedImages;
 import org.eclipse.wst.jsdt.debug.internal.rhino.ui.RhinoImageRegistry;
 import org.eclipse.wst.jsdt.debug.internal.rhino.ui.RhinoUIPlugin;
 import org.eclipse.wst.jsdt.debug.internal.rhino.ui.refactoring.Refactoring;
 import org.eclipse.wst.jsdt.debug.internal.ui.SWTFactory;
 import org.eclipse.wst.jsdt.debug.internal.ui.dialogs.ScriptSelectionDialog;

 /**
  * Rhino specific main tab
  *
  * @since 1.0
  */
 public class RhinoMainTab extends AbstractLaunchConfigurationTab {

 	/**
 	 * The id of the tab
 	 * <br><br>
 	 * Value is: <code>rhino.main.tab</code>
 	 */
 	public static final String TAB_ID = "rhino.main.tab"; //$NON-NLS-1$
 	public static final String[] VERSIONS = {"100", "110", "120", "130", "140", "150", "160", "170"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
 	public static final String[] OPTIMIZATIONS = {"-1 [interpret only]", "0 [no optimizations]", "1 [all optimizations]"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

 	SelectionAdapter defaultAdapter = new SelectionAdapter() {
 		public void widgetSelected(SelectionEvent e) {
 			updateLaunchConfigurationDialog();
 		};
 	};

 	Text script = null;
 	Button logging = null,
 		   strict = null;
 	Combo ecmaversion = null,
 		  optlevel = null;

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.ILaunchConfigurationTab#createControl(org.eclipse.swt.widgets.Composite)
 	 */
 	public void createControl(Composite parent) {
 		Composite comp = SWTFactory.createComposite(parent, 1, 1, GridData.FILL_HORIZONTAL);
 		Group group = SWTFactory.createGroup(comp, Messages._script, 2, 1, GridData.FILL_HORIZONTAL);
 		script = SWTFactory.createSingleText(group, 1);
 		script.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				updateLaunchConfigurationDialog();
 			}
 		});
 		((GridData) script.getLayoutData()).grabExcessHorizontalSpace = true;
 		Button browse = SWTFactory.createPushButton(group, Messages.bro_wse, null);
 		browse.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				IJavaScriptUnit unit = chooseScript();
 				if(unit != null) {
 					script.setText(unit.getPath().toString());
 				}
 			}
 		});
 		group = SWTFactory.createGroup(comp, Messages.options_group_name, 2, 1, GridData.FILL_HORIZONTAL);
 		Label lbl = SWTFactory.createWrapLabel(group, Messages.ecma_version_to_interpret_with, 1);
 		((GridData)lbl.getLayoutData()).grabExcessHorizontalSpace = true;
 		ecmaversion = SWTFactory.createCombo(group, SWT.READ_ONLY | SWT.SINGLE, 1, VERSIONS);
 		ecmaversion.addSelectionListener(defaultAdapter);
 		GridData data = (GridData) ecmaversion.getLayoutData();
 		data.grabExcessHorizontalSpace = false;
 		data.horizontalAlignment = SWT.END;
 		lbl = SWTFactory.createWrapLabel(group, Messages.rhino_opt_level, 1);
 		((GridData)lbl.getLayoutData()).grabExcessHorizontalSpace = true;
 		optlevel = SWTFactory.createCombo(group, SWT.READ_ONLY | SWT.SINGLE, 1, OPTIMIZATIONS);
 		optlevel.addSelectionListener(defaultAdapter);
 		data = (GridData) optlevel.getLayoutData();
 		data.grabExcessHorizontalSpace = false;
 		data.horizontalAlignment = SWT.END;
 		strict = SWTFactory.createCheckButton(group, Messages.strict_mode, null, false, 2);
 		strict.addSelectionListener(defaultAdapter);
 		logging = SWTFactory.createCheckButton(group, Messages.log_interpreter_exceptions, null, false, 2);
 		logging.addSelectionListener(defaultAdapter);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(comp, IHelpConstants.MAIN_TAB_CONTEXT);
 		setControl(comp);
 	}

 	public String getHelpContextId() {
 		return IHelpConstants.MAIN_TAB_CONTEXT;
 	};

 	/**
 	 * Allows users to select a script from either a project context, if there is one or the workspace
 	 *
 	 * @return the selected script or <code>null</code>
 	 */
 	IJavaScriptUnit chooseScript() {
 		ScriptSelectionDialog dialog = new ScriptSelectionDialog(getShell(), false, ResourcesPlugin.getWorkspace().getRoot());
 		dialog.setTitle(Messages.script_selection);
 		if(dialog.open() == IDialogConstants.OK_ID) {
 			IFile file = (IFile) dialog.getFirstResult();
 			return (IJavaScriptUnit) JavaScriptCore.create(file);
 		}
 		return null;
 	}


 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#isValid(org.eclipse.debug.core.ILaunchConfiguration)
 	 */
 	public boolean isValid(ILaunchConfiguration launchConfig) {
 		String text2 = script.getText().trim();
 		boolean hasscript = text2.length() > 0;
 		if(!hasscript) {
 			setErrorMessage(Messages.provide_script_for_project);
 			return false;
 		}
 		IResource resource = ResourcesPlugin.getWorkspace().getRoot().findMember(new Path(text2));
 		if(resource != null) {
 			if(resource.getType() != IResource.FILE) {
 				setErrorMessage(NLS.bind(Messages.script_not_a_file, text2));
 				return false;
 			}
 			if(!resource.isAccessible()) {
 				setErrorMessage(NLS.bind(Messages.script_not_accessible, text2));
 				return false;
 			}
 		}
 		else {
 			setErrorMessage(NLS.bind(Messages.script_not_in_workspace, text2));
 			return false;
 		}
 		setErrorMessage(null);
 		setMessage(Messages.launch_script);
 		return true;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.ILaunchConfigurationTab#setDefaults(org.eclipse.debug.core.ILaunchConfigurationWorkingCopy)
 	 */
 	public void setDefaults(ILaunchConfigurationWorkingCopy configuration) {
 		IJavaScriptElement element = getContext();
 		if(element != null) {
 			if(element instanceof IMember) {
 				IMember member = (IMember) element;
 				if(member.isBinary()) {
 					element = member.getClassFile();
 				}
 				else {
 					element = member.getJavaScriptUnit();
 				}
 			}
 			String pname = element.getJavaScriptProject().getProject().getName();
 			String name = pname;
 			ITypeRoot root = null;
 			if(element.getElementType() == IJavaScriptElement.CLASS_FILE ||
 					element.getElementType() == IJavaScriptElement.JAVASCRIPT_UNIT) {
 				root = (ITypeRoot) element;
 				String tname = root.getElementName();
 				configuration.setAttribute(ILaunchConstants.ATTR_SCRIPT, root.getPath().toString());
 				name = NLS.bind(Messages.config_name, new String[] {pname, tname});
 			}
 			name = getLaunchConfigurationDialog().generateName(name);
 			configuration.rename(name);
 			Refactoring.mapResources(configuration);
 		}
 		configuration.setAttribute(ILaunchConstants.ATTR_LOG_INTERPRETER_EXCEPTIONS, true);
 		configuration.setAttribute(ILaunchConstants.ATTR_ECMA_VERSION, ILaunchConstants.ECMA_170);
 		configuration.setAttribute(ILaunchConstants.ATTR_OPT_LEVEL, -1);
 		configuration.setAttribute(ILaunchConstants.ATTR_STRICT_MODE, false);
 	}

 	/**
 	 * Returns the current JavaScript context - project or script file - from the current workbench
 	 * selection or <code>null</code> if:
 	 * <ol>
 	 * <li>there is no active workbench page or part</li>
 	 * <li>there is nothing selected in the active page</li>
 	 * <li>the selected item cannot be resolved to an {@link IJavaScriptElement}</li>
 	 * </ol>
 	 *
 	 * @return the {@link IJavaScriptElement} context for the current workbench selection or <code>null</code>
 	 */
 	IJavaScriptElement getContext() {
 		IWorkbenchPage page = RhinoUIPlugin.getActivePage();
 		if (page != null) {
 			ISelection selection = page.getSelection();
 			if (selection instanceof IStructuredSelection) {
 				IStructuredSelection ss = (IStructuredSelection)selection;
 				if (!ss.isEmpty()) {
 					Object obj = ss.getFirstElement();
 					if (obj instanceof IJavaScriptElement) {
 						return (IJavaScriptElement)obj;
 					}
 					if (obj instanceof IResource) {
 						IJavaScriptElement je = JavaScriptCore.create((IResource)obj);
 						if (je == null) {
 							IProject pro = ((IResource)obj).getProject();
 							je = JavaScriptCore.create(pro);
 						}
 						if (je != null) {
 							return je;
 						}
 					}
 				}
 			}
 			IEditorPart part = page.getActiveEditor();
 			if (part != null) {
 				IEditorInput input = part.getEditorInput();
 				return (IJavaScriptElement) input.getAdapter(IJavaScriptElement.class);
 			}
 		}
 		return null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.ILaunchConfigurationTab#initializeFrom(org.eclipse.debug.core.ILaunchConfiguration)
 	 */
 	public void initializeFrom(ILaunchConfiguration configuration) {
 		try {
 			String text = configuration.getAttribute(ILaunchConstants.ATTR_SCRIPT, (String)null);
 			if(text != null) {
 				script.setText(text);
 			}
 			boolean value = configuration.getAttribute(ILaunchConstants.ATTR_LOG_INTERPRETER_EXCEPTIONS, true);
 			logging.setSelection(value);
 			value = configuration.getAttribute(ILaunchConstants.ATTR_STRICT_MODE, false);
 			strict.setSelection(value);
 			text = configuration.getAttribute(ILaunchConstants.ATTR_ECMA_VERSION, ILaunchConstants.ECMA_170);
 			int idx = ecmaversion.indexOf(text);
 			if(idx < 0) {
 				idx = 7;
 			}
 			ecmaversion.select(idx);
 			int opt = configuration.getAttribute(ILaunchConstants.ATTR_OPT_LEVEL, -1);
 			optlevel.select(opt+1);
 		}
 		catch(CoreException ce) {}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.ILaunchConfigurationTab#performApply(org.eclipse.debug.core.ILaunchConfigurationWorkingCopy)
 	 */
 	public void performApply(ILaunchConfigurationWorkingCopy configuration) {
 		String scpt = script.getText().trim();
 		if(scpt.length() < 1) {
 			configuration.removeAttribute(ILaunchConstants.ATTR_SCRIPT);
 		}
 		else {
 			configuration.setAttribute(ILaunchConstants.ATTR_SCRIPT, scpt);
 		}
 		configuration.setAttribute(ILaunchConstants.ATTR_LOG_INTERPRETER_EXCEPTIONS, logging.getSelection());
 		configuration.setAttribute(ILaunchConstants.ATTR_STRICT_MODE, strict.getSelection());
 		configuration.setAttribute(ILaunchConstants.ATTR_ECMA_VERSION, ecmaversion.getText());
 		configuration.setAttribute(ILaunchConstants.ATTR_OPT_LEVEL, optlevel.getSelectionIndex()-1);
 		Refactoring.mapResources(configuration);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.ILaunchConfigurationTab#getName()
 	 */
 	public String getName() {
 		return Messages.main;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#getId()
 	 */
 	public String getId() {
 		return TAB_ID;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#getImage()
 	 */
 	public Image getImage() {
 		return RhinoImageRegistry.getSharedImage(ISharedImages.IMG_MAIN_TAB);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2010, 2011 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.jsdt.debug.internal.rhino.ui.launching;

	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.debug.core.ILaunchConfiguration;
	import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
	import org.eclipse.debug.ui.AbstractLaunchConfigurationTab;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	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.Image;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Group;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.IEditorInput;
	import org.eclipse.ui.IEditorPart;
	import org.eclipse.ui.IWorkbenchPage;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.wst.jsdt.core.IJavaScriptElement;
	import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
	import org.eclipse.wst.jsdt.core.IMember;
	import org.eclipse.wst.jsdt.core.ITypeRoot;
	import org.eclipse.wst.jsdt.core.JavaScriptCore;
	import org.eclipse.wst.jsdt.debug.internal.rhino.ui.IHelpConstants;
	import org.eclipse.wst.jsdt.debug.internal.rhino.ui.ILaunchConstants;
	import org.eclipse.wst.jsdt.debug.internal.rhino.ui.ISharedImages;
	import org.eclipse.wst.jsdt.debug.internal.rhino.ui.RhinoImageRegistry;
	import org.eclipse.wst.jsdt.debug.internal.rhino.ui.RhinoUIPlugin;
	import org.eclipse.wst.jsdt.debug.internal.rhino.ui.refactoring.Refactoring;
	import org.eclipse.wst.jsdt.debug.internal.ui.SWTFactory;
	import org.eclipse.wst.jsdt.debug.internal.ui.dialogs.ScriptSelectionDialog;

	/**
	* Rhino specific main tab
	*
	* @since 1.0
	*/
	public class RhinoMainTab extends AbstractLaunchConfigurationTab {

	/**
	* The id of the tab
	* <br><br>
	* Value is: <code>rhino.main.tab</code>
	*/
	public static final String TAB_ID = "rhino.main.tab"; //$NON-NLS-1$
	public static final String[] VERSIONS = {"100", "110", "120", "130", "140", "150", "160", "170"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$
	public static final String[] OPTIMIZATIONS = {"-1 [interpret only]", "0 [no optimizations]", "1 [all optimizations]"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

	SelectionAdapter defaultAdapter = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	updateLaunchConfigurationDialog();
	};
	};

	Text script = null;
	Button logging = null,
	strict = null;
	Combo ecmaversion = null,
	optlevel = null;

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.ILaunchConfigurationTab#createControl(org.eclipse.swt.widgets.Composite)
	*/
	public void createControl(Composite parent) {
	Composite comp = SWTFactory.createComposite(parent, 1, 1, GridData.FILL_HORIZONTAL);
	Group group = SWTFactory.createGroup(comp, Messages._script, 2, 1, GridData.FILL_HORIZONTAL);
	script = SWTFactory.createSingleText(group, 1);
	script.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	updateLaunchConfigurationDialog();
	}
	});
	((GridData) script.getLayoutData()).grabExcessHorizontalSpace = true;
	Button browse = SWTFactory.createPushButton(group, Messages.bro_wse, null);
	browse.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	IJavaScriptUnit unit = chooseScript();
	if(unit != null) {
	script.setText(unit.getPath().toString());
	}
	}
	});
	group = SWTFactory.createGroup(comp, Messages.options_group_name, 2, 1, GridData.FILL_HORIZONTAL);
	Label lbl = SWTFactory.createWrapLabel(group, Messages.ecma_version_to_interpret_with, 1);
	((GridData)lbl.getLayoutData()).grabExcessHorizontalSpace = true;
	ecmaversion = SWTFactory.createCombo(group, SWT.READ_ONLY \| SWT.SINGLE, 1, VERSIONS);
	ecmaversion.addSelectionListener(defaultAdapter);
	GridData data = (GridData) ecmaversion.getLayoutData();
	data.grabExcessHorizontalSpace = false;
	data.horizontalAlignment = SWT.END;
	lbl = SWTFactory.createWrapLabel(group, Messages.rhino_opt_level, 1);
	((GridData)lbl.getLayoutData()).grabExcessHorizontalSpace = true;
	optlevel = SWTFactory.createCombo(group, SWT.READ_ONLY \| SWT.SINGLE, 1, OPTIMIZATIONS);
	optlevel.addSelectionListener(defaultAdapter);
	data = (GridData) optlevel.getLayoutData();
	data.grabExcessHorizontalSpace = false;
	data.horizontalAlignment = SWT.END;
	strict = SWTFactory.createCheckButton(group, Messages.strict_mode, null, false, 2);
	strict.addSelectionListener(defaultAdapter);
	logging = SWTFactory.createCheckButton(group, Messages.log_interpreter_exceptions, null, false, 2);
	logging.addSelectionListener(defaultAdapter);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(comp, IHelpConstants.MAIN_TAB_CONTEXT);
	setControl(comp);
	}

	public String getHelpContextId() {
	return IHelpConstants.MAIN_TAB_CONTEXT;
	};

	/**
	* Allows users to select a script from either a project context, if there is one or the workspace
	*
	* @return the selected script or <code>null</code>
	*/
	IJavaScriptUnit chooseScript() {
	ScriptSelectionDialog dialog = new ScriptSelectionDialog(getShell(), false, ResourcesPlugin.getWorkspace().getRoot());
	dialog.setTitle(Messages.script_selection);
	if(dialog.open() == IDialogConstants.OK_ID) {
	IFile file = (IFile) dialog.getFirstResult();
	return (IJavaScriptUnit) JavaScriptCore.create(file);
	}
	return null;
	}


	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#isValid(org.eclipse.debug.core.ILaunchConfiguration)
	*/
	public boolean isValid(ILaunchConfiguration launchConfig) {
	String text2 = script.getText().trim();
	boolean hasscript = text2.length() > 0;
	if(!hasscript) {
	setErrorMessage(Messages.provide_script_for_project);
	return false;
	}
	IResource resource = ResourcesPlugin.getWorkspace().getRoot().findMember(new Path(text2));
	if(resource != null) {
	if(resource.getType() != IResource.FILE) {
	setErrorMessage(NLS.bind(Messages.script_not_a_file, text2));
	return false;
	}
	if(!resource.isAccessible()) {
	setErrorMessage(NLS.bind(Messages.script_not_accessible, text2));
	return false;
	}
	}
	else {
	setErrorMessage(NLS.bind(Messages.script_not_in_workspace, text2));
	return false;
	}
	setErrorMessage(null);
	setMessage(Messages.launch_script);
	return true;
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.ILaunchConfigurationTab#setDefaults(org.eclipse.debug.core.ILaunchConfigurationWorkingCopy)
	*/
	public void setDefaults(ILaunchConfigurationWorkingCopy configuration) {
	IJavaScriptElement element = getContext();
	if(element != null) {
	if(element instanceof IMember) {
	IMember member = (IMember) element;
	if(member.isBinary()) {
	element = member.getClassFile();
	}
	else {
	element = member.getJavaScriptUnit();
	}
	}
	String pname = element.getJavaScriptProject().getProject().getName();
	String name = pname;
	ITypeRoot root = null;
	if(element.getElementType() == IJavaScriptElement.CLASS_FILE \|\|
	element.getElementType() == IJavaScriptElement.JAVASCRIPT_UNIT) {
	root = (ITypeRoot) element;
	String tname = root.getElementName();
	configuration.setAttribute(ILaunchConstants.ATTR_SCRIPT, root.getPath().toString());
	name = NLS.bind(Messages.config_name, new String[] {pname, tname});
	}
	name = getLaunchConfigurationDialog().generateName(name);
	configuration.rename(name);
	Refactoring.mapResources(configuration);
	}
	configuration.setAttribute(ILaunchConstants.ATTR_LOG_INTERPRETER_EXCEPTIONS, true);
	configuration.setAttribute(ILaunchConstants.ATTR_ECMA_VERSION, ILaunchConstants.ECMA_170);
	configuration.setAttribute(ILaunchConstants.ATTR_OPT_LEVEL, -1);
	configuration.setAttribute(ILaunchConstants.ATTR_STRICT_MODE, false);
	}

	/**
	* Returns the current JavaScript context - project or script file - from the current workbench
	* selection or <code>null</code> if:
	* <ol>
	* <li>there is no active workbench page or part</li>
	* <li>there is nothing selected in the active page</li>
	* <li>the selected item cannot be resolved to an {@link IJavaScriptElement}</li>
	* </ol>
	*
	* @return the {@link IJavaScriptElement} context for the current workbench selection or <code>null</code>
	*/
	IJavaScriptElement getContext() {
	IWorkbenchPage page = RhinoUIPlugin.getActivePage();
	if (page != null) {
	ISelection selection = page.getSelection();
	if (selection instanceof IStructuredSelection) {
	IStructuredSelection ss = (IStructuredSelection)selection;
	if (!ss.isEmpty()) {
	Object obj = ss.getFirstElement();
	if (obj instanceof IJavaScriptElement) {
	return (IJavaScriptElement)obj;
	}
	if (obj instanceof IResource) {
	IJavaScriptElement je = JavaScriptCore.create((IResource)obj);
	if (je == null) {
	IProject pro = ((IResource)obj).getProject();
	je = JavaScriptCore.create(pro);
	}
	if (je != null) {
	return je;
	}
	}
	}
	}
	IEditorPart part = page.getActiveEditor();
	if (part != null) {
	IEditorInput input = part.getEditorInput();
	return (IJavaScriptElement) input.getAdapter(IJavaScriptElement.class);
	}
	}
	return null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.ILaunchConfigurationTab#initializeFrom(org.eclipse.debug.core.ILaunchConfiguration)
	*/
	public void initializeFrom(ILaunchConfiguration configuration) {
	try {
	String text = configuration.getAttribute(ILaunchConstants.ATTR_SCRIPT, (String)null);
	if(text != null) {
	script.setText(text);
	}
	boolean value = configuration.getAttribute(ILaunchConstants.ATTR_LOG_INTERPRETER_EXCEPTIONS, true);
	logging.setSelection(value);
	value = configuration.getAttribute(ILaunchConstants.ATTR_STRICT_MODE, false);
	strict.setSelection(value);
	text = configuration.getAttribute(ILaunchConstants.ATTR_ECMA_VERSION, ILaunchConstants.ECMA_170);
	int idx = ecmaversion.indexOf(text);
	if(idx < 0) {
	idx = 7;
	}
	ecmaversion.select(idx);
	int opt = configuration.getAttribute(ILaunchConstants.ATTR_OPT_LEVEL, -1);
	optlevel.select(opt+1);
	}
	catch(CoreException ce) {}
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.ILaunchConfigurationTab#performApply(org.eclipse.debug.core.ILaunchConfigurationWorkingCopy)
	*/
	public void performApply(ILaunchConfigurationWorkingCopy configuration) {
	String scpt = script.getText().trim();
	if(scpt.length() < 1) {
	configuration.removeAttribute(ILaunchConstants.ATTR_SCRIPT);
	}
	else {
	configuration.setAttribute(ILaunchConstants.ATTR_SCRIPT, scpt);
	}
	configuration.setAttribute(ILaunchConstants.ATTR_LOG_INTERPRETER_EXCEPTIONS, logging.getSelection());
	configuration.setAttribute(ILaunchConstants.ATTR_STRICT_MODE, strict.getSelection());
	configuration.setAttribute(ILaunchConstants.ATTR_ECMA_VERSION, ecmaversion.getText());
	configuration.setAttribute(ILaunchConstants.ATTR_OPT_LEVEL, optlevel.getSelectionIndex()-1);
	Refactoring.mapResources(configuration);
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.ILaunchConfigurationTab#getName()
	*/
	public String getName() {
	return Messages.main;
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#getId()
	*/
	public String getId() {
	return TAB_ID;
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#getImage()
	*/
	public Image getImage() {
	return RhinoImageRegistry.getSharedImage(ISharedImages.IMG_MAIN_TAB);
	}
	}