ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/editor/feature/InfoSection.java - pde/eclipse.pde.ui - Git at Google

 /*******************************************************************************
  *  Copyright (c) 2000, 2018 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.pde.internal.ui.editor.feature;

 import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.jface.action.IMenuManager;
 import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.jface.text.*;
 import org.eclipse.jface.text.source.SourceViewer;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.pde.core.IEditable;
 import org.eclipse.pde.core.IModelChangedEvent;
 import org.eclipse.pde.internal.core.ifeature.*;
 import org.eclipse.pde.internal.ui.*;
 import org.eclipse.pde.internal.ui.editor.*;
 import org.eclipse.pde.internal.ui.editor.context.XMLDocumentSetupParticpant;
 import org.eclipse.pde.internal.ui.editor.text.IColorManager;
 import org.eclipse.pde.internal.ui.editor.text.XMLConfiguration;
 import org.eclipse.pde.internal.ui.elements.NamedElement;
 import org.eclipse.pde.internal.ui.util.TextUtil;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.*;
 import org.eclipse.swt.dnd.Clipboard;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.actions.ActionFactory;
 import org.eclipse.ui.forms.IFormColors;
 import org.eclipse.ui.forms.widgets.*;

 public class InfoSection extends PDESection {
 	private IDocument fDocument;

 	private XMLConfiguration fSourceConfiguration;

 	private SourceViewer fSourceViewer;

 	private CTabFolder fTabFolder;

 	private Text fUrlText;

 	private Object fElement;

 	private int fElementIndex;

 	private boolean fIgnoreChange;

 	private Composite fNotebook;

 	private StackLayout fNotebookLayout;

 	private Control fInfoPage;

 	private Control fUrlsPage;

 	private Control fLicensePage;

 	public InfoSection(PDEFormPage page, Composite parent, IColorManager colorManager) {
 		super(page, parent, Section.DESCRIPTION | ExpandableComposite.NO_TITLE, false);
 		String description = PDEUIMessages.FeatureEditor_InfoSection_desc;
 		getSection().setDescription(description);
 		fSourceConfiguration = new XMLConfiguration(colorManager);
 		fDocument = new Document();
 		new XMLDocumentSetupParticpant().setup(fDocument);
 		createClient(getSection(), page.getManagedForm().getToolkit());
 	}

 	@Override
 	public void commit(boolean onSave) {
 		handleApply();
 		super.commit(onSave);
 	}

 	@Override
 	public void createClient(Section section, FormToolkit toolkit) {

 		section.setLayout(FormLayoutFactory.createClearGridLayout(false, 1));
 		GridData data = new GridData(GridData.FILL_BOTH);
 		section.setLayoutData(data);

 		Composite container = toolkit.createComposite(section);
 		container.setLayout(FormLayoutFactory.createSectionClientGridLayout(false, 2));
 		container.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

 		GridData gd;

 		toolkit.createLabel(container, null);
 		fTabFolder = new CTabFolder(container, SWT.FLAT | SWT.TOP);
 		toolkit.adapt(fTabFolder, true, true);
 		gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		fTabFolder.setLayoutData(gd);
 		gd.heightHint = 2;
 		toolkit.getColors().initializeSectionToolBarColors();
 		Color selectedColor = toolkit.getColors().getColor(IFormColors.TB_BG);
 		fTabFolder.setSelectionBackground(new Color[] {selectedColor, toolkit.getColors().getBackground()}, new int[] {100}, true);

 		fTabFolder.addSelectionListener(widgetSelectedAdapter(e -> updateTabSelection()));

 		fNotebook = toolkit.createComposite(container);
 		gd = new GridData(GridData.FILL_BOTH);
 		gd.horizontalSpan = 2;
 		fNotebook.setLayoutData(gd);
 		fNotebookLayout = new StackLayout();
 		fNotebook.setLayout(fNotebookLayout);

 		fInfoPage = createInfoPage(toolkit, fNotebook);
 		fLicensePage = createLicensePage(toolkit, fNotebook);
 		fUrlsPage = createUrlsPage(toolkit, fNotebook);
 		fNotebookLayout.topControl = fInfoPage;

 		createTabs();
 		section.setClient(container);
 		initialize();
 		if (fTabFolder.getItemCount() > 0) {
 			fTabFolder.setSelection(0);
 			updateTabSelection();
 		}
 	}

 	private Control createLicensePage(FormToolkit toolkit, Composite parent) {
 		Composite page = toolkit.createComposite(parent);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 2;
 		layout.marginWidth = 2;
 		layout.marginHeight = 0;
 		layout.verticalSpacing = 8;
 		layout.marginTop = 0;
 		page.setLayout(layout);

 		LicenseFeatureSection licenseSection = new LicenseFeatureSection(getPage(), page, fSourceConfiguration);
 		licenseSection.getSection().setLayoutData(new GridData(GridData.FILL_BOTH | GridData.VERTICAL_ALIGN_BEGINNING));

 		getManagedForm().addPart(licenseSection);
 		return page;
 	}

 	/**
 	 * @param toolkit
 	 * @param parent
 	 */
 	private Control createInfoPage(FormToolkit toolkit, Composite parent) {
 		Composite page = toolkit.createComposite(parent);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 2;
 		layout.marginWidth = 2;
 		layout.marginHeight = 5;
 		layout.verticalSpacing = 8;
 		page.setLayout(layout);

 		GridData gd;
 		Label label = toolkit.createLabel(page, PDEUIMessages.FeatureEditor_InfoSection_url);
 		label.setForeground(toolkit.getColors().getColor(IFormColors.TITLE));
 		fUrlText = toolkit.createText(page, null, SWT.SINGLE);
 		fUrlText.addModifyListener(e -> infoModified());
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		fUrlText.setLayoutData(gd);
 		label = toolkit.createLabel(page, PDEUIMessages.FeatureEditor_InfoSection_text);
 		label.setForeground(toolkit.getColors().getColor(IFormColors.TITLE));
 		gd = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
 		label.setLayoutData(gd);
 		int styles = SWT.MULTI | SWT.WRAP | SWT.V_SCROLL | SWT.H_SCROLL;
 		fSourceViewer = new SourceViewer(page, null, styles);
 		fSourceViewer.configure(fSourceConfiguration);
 		fSourceViewer.setDocument(fDocument);
 		fSourceViewer.addSelectionChangedListener(event -> updateSelection(event.getSelection()));
 		StyledText styledText = fSourceViewer.getTextWidget();
 		styledText.setFont(JFaceResources.getTextFont());
 		styledText.setMenu(getPage().getPDEEditor().getContextMenu());
 		styledText.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER);
 		//
 		if (SWT.getPlatform().equals("motif") == false) //$NON-NLS-1$
 			toolkit.paintBordersFor(page);
 		Control[] children = page.getChildren();
 		Control control = children[children.length - 1];
 		gd = new GridData(GridData.FILL_BOTH | GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL);
 		gd.widthHint = 50;
 		gd.heightHint = 50;
 		control.setLayoutData(gd);

 		return page;
 	}

 	/**
 	 * @param toolkit
 	 * @param parent
 	 */
 	private Control createUrlsPage(FormToolkit toolkit, Composite parent) {
 		Composite page = toolkit.createComposite(parent);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 2;
 		layout.makeColumnsEqualWidth = true;
 		layout.marginWidth = 2;
 		layout.marginHeight = 5;
 		layout.verticalSpacing = 8;
 		page.setLayout(layout);

 		URLSection urlSection = new URLSection(getPage(), page);
 		urlSection.getSection().setLayoutData(new GridData(GridData.FILL_BOTH | GridData.VERTICAL_ALIGN_BEGINNING));

 		URLDetailsSection urlDetailsSection = new URLDetailsSection(getPage(), page);
 		urlDetailsSection.getSection().setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING));

 		getManagedForm().addPart(urlSection);
 		getManagedForm().addPart(urlDetailsSection);
 		return page;
 	}

 	private void updateSelection(ISelection selection) {
 		getPage().getPDEEditor().setSelection(selection);
 	}

 	@Override
 	public boolean doGlobalAction(String actionId) {
 		if (actionId.equals(ActionFactory.CUT.getId())) {
 			fSourceViewer.doOperation(ITextOperationTarget.CUT);
 			return true;
 		} else if (actionId.equals(ActionFactory.COPY.getId())) {
 			fSourceViewer.doOperation(ITextOperationTarget.COPY);
 			return true;
 		} else if (actionId.equals(ActionFactory.PASTE.getId())) {
 			fSourceViewer.doOperation(ITextOperationTarget.PASTE);
 			return true;
 		} else if (actionId.equals(ActionFactory.DELETE.getId())) {
 			fSourceViewer.doOperation(ITextOperationTarget.DELETE);
 			return true;
 		} else if (actionId.equals(ActionFactory.UNDO.getId())) {
 			fSourceViewer.doOperation(ITextOperationTarget.UNDO);
 			return true;
 		} else if (actionId.equals(ActionFactory.REDO.getId())) {
 			fSourceViewer.doOperation(ITextOperationTarget.REDO);
 			return true;
 		} else if (actionId.equals(ActionFactory.SELECT_ALL.getId())) {
 			fSourceViewer.doOperation(ITextOperationTarget.SELECT_ALL);
 		}
 		return false;
 	}

 	@Override
 	public boolean setFormInput(Object input) {
 		if (input instanceof IFeatureInfo) {
 			IFeatureInfo info = (IFeatureInfo) input;
 			int index = info.getIndex();
 			if (index != -1)
 				fTabFolder.setSelection(index);
 			updateEditorInput(input, false);
 			return true;
 		}
 		if (input instanceof IFeatureURLElement || input instanceof NamedElement) {
 			fTabFolder.setSelection(3);
 			updateEditorInput(input, false);
 			return true;
 		}
 		return false;
 	}

 	private void handleApply() {
 		if (0 <= fElementIndex && fElementIndex < 2 && fElement != null) {
 			handleApply((IFeatureInfo) fElement, fTabFolder.getSelectionIndex());
 		} else {
 			handleApply(null, fTabFolder.getSelectionIndex());
 		}
 	}

 	private void handleApply(IFeatureInfo info, int index) {
 		if (index >= 2)
 			return;
 		String urlName = fUrlText.getText();
 		String text = fDocument.get();
 		applyInfoText(info, urlName, text, index);
 		updateTabImage(fTabFolder.getSelection());
 	}

 	private void applyInfoText(IFeatureInfo targetInfo, String urlText, String text, int index) {
 		String url = null;

 		if (urlText.length() > 0) {
 			url = urlText;
 		}
 		try {
 			IFeatureModel model = (IFeatureModel) getPage().getModel();
 			IFeature feature = model.getFeature();

 			if (targetInfo == null)
 				targetInfo = feature.getFeatureInfo(index);

 			if (targetInfo == null) {
 				targetInfo = model.getFactory().createInfo(index);
 				feature.setFeatureInfo(targetInfo, index);
 			}
 			targetInfo.setURL(url);
 			targetInfo.setDescription(text);
 		} catch (CoreException e) {
 			// TODO: This should probably at least be logged
 		}
 	}

 	protected void fillContextMenu(IMenuManager manager) {
 		getPage().getPDEEditor().getContributor().contextMenuAboutToShow(manager);
 	}

 	public void initialize() {
 		IFeatureModel featureModel = (IFeatureModel) getPage().getModel();
 		fDocument.addDocumentListener(new IDocumentListener() {
 			@Override
 			public void documentChanged(DocumentEvent e) {
 				infoModified();
 			}

 			@Override
 			public void documentAboutToBeChanged(DocumentEvent e) {
 			}
 		});
 		fUrlText.setEditable(featureModel.isEditable());
 		fSourceViewer.getTextWidget().setEditable(featureModel.isEditable());
 		featureModel.addModelChangedListener(this);
 		updateEditorInput(featureModel.getFeature().getFeatureInfo(0), false);
 	}

 	@Override
 	public void dispose() {
 		// Dispose of the source configuration
 		if (fSourceConfiguration != null) {
 			fSourceConfiguration.dispose();
 		}
 		IFeatureModel featureModel = (IFeatureModel) getPage().getModel();
 		if (featureModel != null)
 			featureModel.removeModelChangedListener(this);
 		super.dispose();
 	}

 	private void infoModified() {
 		IFeatureModel featureModel = (IFeatureModel) getPage().getModel();
 		if (!fIgnoreChange && featureModel instanceof IEditable) {
 			markDirty();
 		}
 	}

 	@Override
 	public void modelChanged(IModelChangedEvent e) {
 		if (e.getChangeType() == IModelChangedEvent.WORLD_CHANGED) {
 			markStale();
 		}
 	}

 	@Override
 	public void refresh() {
 		IFeatureModel model = (IFeatureModel) getPage().getModel();
 		int index = fTabFolder.getSelectionIndex();
 		if (index < 3) {
 			IFeatureInfo info = model.getFeature().getFeatureInfo(index);
 			fElement = null;
 			fElementIndex = -1;
 			updateEditorInput(info, false);
 		}
 		super.refresh();
 	}

 	private void createTabs() {
 		IFeatureModel model = (IFeatureModel) getPage().getModel();
 		IFeature feature = model.getFeature();
 		addTab(PDEUIMessages.FeatureEditor_info_description, feature.getFeatureInfo(0));
 		addTab(PDEUIMessages.FeatureEditor_info_copyright, feature.getFeatureInfo(1));
 		addTab(PDEUIMessages.FeatureEditor_info_license, feature.getFeatureInfo(2));
 		addTab(PDEUIMessages.FeatureEditor_info_discoveryUrls, null);
 	}

 	private void addTab(String label, IFeatureInfo info) {
 		CTabItem item = new CTabItem(fTabFolder, SWT.NULL);
 		item.setText(label);
 		item.setData(info);
 		updateTabImage(item);
 	}

 	private void updateTabImage(CTabItem item) {
 		if (item == null)
 			return;
 		Object info = item.getData();
 		if (info != null) {
 			item.setImage(PDEPlugin.getDefault().getLabelProvider().getImage(info));
 		} else {
 			item.setImage(PDEPlugin.getDefault().getLabelProvider().get(PDEPluginImages.DESC_DOC_SECTION_OBJ));
 		}
 	}

 	private void updateTabSelection() {
 		IFeatureModel model = (IFeatureModel) getPage().getModel();
 		IFeature feature = model.getFeature();
 		int index = fTabFolder.getSelectionIndex();
 		if (index < 3) {
 			IFeatureInfo info = feature.getFeatureInfo(index);
 			updateEditorInput(info, true);
 		}

 		// TODO: Why is this code in both updateEditorInput and updateTabSelection?
 		Control oldPage = fNotebookLayout.topControl;
 		switch (index) {
 			case 0 :
 			case 1 :
 				fNotebookLayout.topControl = fInfoPage;
 				break;
 			case 2 :
 				fNotebookLayout.topControl = fLicensePage;
 				break;
 			case 3 :
 				fNotebookLayout.topControl = fUrlsPage;
 				break;
 		}
 		if (oldPage != fNotebookLayout.topControl)
 			fNotebook.layout();
 	}

 	@Override
 	public void setFocus() {
 		fSourceViewer.getTextWidget().setFocus();
 		updateSelection(fSourceViewer.getSelection());
 	}

 	private void commitPrevious() {
 		IFeatureInfo previous = (IFeatureInfo) fElement;
 		handleApply(previous, fElementIndex);
 	}

 	public void updateEditorInput(Object input, boolean commitPrevious) {
 		if (isDirty() && commitPrevious /*
 											 * && element != null && element !=
 											 * input
 											 */) {
 			commitPrevious();
 		}
 		fIgnoreChange = true;
 		String text = ""; //$NON-NLS-1$
 		String url = null;
 		if (input instanceof IFeatureInfo) {
 			IFeatureInfo info = (IFeatureInfo) input;
 			text = info.getDescription();
 			url = info.getURL();
 		}
 		if (text == null)
 			text = ""; //$NON-NLS-1$
 		else
 			text = TextUtil.createMultiLine(text, 60, false);
 		fDocument.set(text);
 		if (url == null)
 			fUrlText.setText(""); //$NON-NLS-1$
 		else
 			fUrlText.setText(url.toString());
 		fElement = input;
 		fElementIndex = fTabFolder.getSelectionIndex();

 		Control oldPage = fNotebookLayout.topControl;
 		switch (fElementIndex) {
 			case 0 :
 			case 1 :
 				fNotebookLayout.topControl = fInfoPage;
 				break;
 			case 2 :
 				fNotebookLayout.topControl = fLicensePage;
 				break;
 			case 3 :
 				fNotebookLayout.topControl = fUrlsPage;
 				break;
 		}
 		if (oldPage != fNotebookLayout.topControl)
 			fNotebook.layout();

 		fIgnoreChange = false;
 	}

 	@Override
 	public boolean canPaste(Clipboard clipboard) {
 		return fSourceViewer.canDoOperation(ITextOperationTarget.PASTE);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2018 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.pde.internal.ui.editor.feature;

	import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.jface.action.IMenuManager;
	import org.eclipse.jface.resource.JFaceResources;
	import org.eclipse.jface.text.*;
	import org.eclipse.jface.text.source.SourceViewer;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.pde.core.IEditable;
	import org.eclipse.pde.core.IModelChangedEvent;
	import org.eclipse.pde.internal.core.ifeature.*;
	import org.eclipse.pde.internal.ui.*;
	import org.eclipse.pde.internal.ui.editor.*;
	import org.eclipse.pde.internal.ui.editor.context.XMLDocumentSetupParticpant;
	import org.eclipse.pde.internal.ui.editor.text.IColorManager;
	import org.eclipse.pde.internal.ui.editor.text.XMLConfiguration;
	import org.eclipse.pde.internal.ui.elements.NamedElement;
	import org.eclipse.pde.internal.ui.util.TextUtil;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.*;
	import org.eclipse.swt.dnd.Clipboard;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.actions.ActionFactory;
	import org.eclipse.ui.forms.IFormColors;
	import org.eclipse.ui.forms.widgets.*;

	public class InfoSection extends PDESection {
	private IDocument fDocument;

	private XMLConfiguration fSourceConfiguration;

	private SourceViewer fSourceViewer;

	private CTabFolder fTabFolder;

	private Text fUrlText;

	private Object fElement;

	private int fElementIndex;

	private boolean fIgnoreChange;

	private Composite fNotebook;

	private StackLayout fNotebookLayout;

	private Control fInfoPage;

	private Control fUrlsPage;

	private Control fLicensePage;

	public InfoSection(PDEFormPage page, Composite parent, IColorManager colorManager) {
	super(page, parent, Section.DESCRIPTION \| ExpandableComposite.NO_TITLE, false);
	String description = PDEUIMessages.FeatureEditor_InfoSection_desc;
	getSection().setDescription(description);
	fSourceConfiguration = new XMLConfiguration(colorManager);
	fDocument = new Document();
	new XMLDocumentSetupParticpant().setup(fDocument);
	createClient(getSection(), page.getManagedForm().getToolkit());
	}

	@Override
	public void commit(boolean onSave) {
	handleApply();
	super.commit(onSave);
	}

	@Override
	public void createClient(Section section, FormToolkit toolkit) {

	section.setLayout(FormLayoutFactory.createClearGridLayout(false, 1));
	GridData data = new GridData(GridData.FILL_BOTH);
	section.setLayoutData(data);

	Composite container = toolkit.createComposite(section);
	container.setLayout(FormLayoutFactory.createSectionClientGridLayout(false, 2));
	container.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

	GridData gd;

	toolkit.createLabel(container, null);
	fTabFolder = new CTabFolder(container, SWT.FLAT \| SWT.TOP);
	toolkit.adapt(fTabFolder, true, true);
	gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	fTabFolder.setLayoutData(gd);
	gd.heightHint = 2;
	toolkit.getColors().initializeSectionToolBarColors();
	Color selectedColor = toolkit.getColors().getColor(IFormColors.TB_BG);
	fTabFolder.setSelectionBackground(new Color[] {selectedColor, toolkit.getColors().getBackground()}, new int[] {100}, true);

	fTabFolder.addSelectionListener(widgetSelectedAdapter(e -> updateTabSelection()));

	fNotebook = toolkit.createComposite(container);
	gd = new GridData(GridData.FILL_BOTH);
	gd.horizontalSpan = 2;
	fNotebook.setLayoutData(gd);
	fNotebookLayout = new StackLayout();
	fNotebook.setLayout(fNotebookLayout);

	fInfoPage = createInfoPage(toolkit, fNotebook);
	fLicensePage = createLicensePage(toolkit, fNotebook);
	fUrlsPage = createUrlsPage(toolkit, fNotebook);
	fNotebookLayout.topControl = fInfoPage;

	createTabs();
	section.setClient(container);
	initialize();
	if (fTabFolder.getItemCount() > 0) {
	fTabFolder.setSelection(0);
	updateTabSelection();
	}
	}

	private Control createLicensePage(FormToolkit toolkit, Composite parent) {
	Composite page = toolkit.createComposite(parent);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.marginWidth = 2;
	layout.marginHeight = 0;
	layout.verticalSpacing = 8;
	layout.marginTop = 0;
	page.setLayout(layout);

	LicenseFeatureSection licenseSection = new LicenseFeatureSection(getPage(), page, fSourceConfiguration);
	licenseSection.getSection().setLayoutData(new GridData(GridData.FILL_BOTH \| GridData.VERTICAL_ALIGN_BEGINNING));

	getManagedForm().addPart(licenseSection);
	return page;
	}

	/**
	* @param toolkit
	* @param parent
	*/
	private Control createInfoPage(FormToolkit toolkit, Composite parent) {
	Composite page = toolkit.createComposite(parent);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.marginWidth = 2;
	layout.marginHeight = 5;
	layout.verticalSpacing = 8;
	page.setLayout(layout);

	GridData gd;
	Label label = toolkit.createLabel(page, PDEUIMessages.FeatureEditor_InfoSection_url);
	label.setForeground(toolkit.getColors().getColor(IFormColors.TITLE));
	fUrlText = toolkit.createText(page, null, SWT.SINGLE);
	fUrlText.addModifyListener(e -> infoModified());
	gd = new GridData(GridData.FILL_HORIZONTAL);
	fUrlText.setLayoutData(gd);
	label = toolkit.createLabel(page, PDEUIMessages.FeatureEditor_InfoSection_text);
	label.setForeground(toolkit.getColors().getColor(IFormColors.TITLE));
	gd = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
	label.setLayoutData(gd);
	int styles = SWT.MULTI \| SWT.WRAP \| SWT.V_SCROLL \| SWT.H_SCROLL;
	fSourceViewer = new SourceViewer(page, null, styles);
	fSourceViewer.configure(fSourceConfiguration);
	fSourceViewer.setDocument(fDocument);
	fSourceViewer.addSelectionChangedListener(event -> updateSelection(event.getSelection()));
	StyledText styledText = fSourceViewer.getTextWidget();
	styledText.setFont(JFaceResources.getTextFont());
	styledText.setMenu(getPage().getPDEEditor().getContextMenu());
	styledText.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER);
	//
	if (SWT.getPlatform().equals("motif") == false) //$NON-NLS-1$
	toolkit.paintBordersFor(page);
	Control[] children = page.getChildren();
	Control control = children[children.length - 1];
	gd = new GridData(GridData.FILL_BOTH \| GridData.GRAB_HORIZONTAL \| GridData.GRAB_VERTICAL);
	gd.widthHint = 50;
	gd.heightHint = 50;
	control.setLayoutData(gd);

	return page;
	}

	/**
	* @param toolkit
	* @param parent
	*/
	private Control createUrlsPage(FormToolkit toolkit, Composite parent) {
	Composite page = toolkit.createComposite(parent);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.makeColumnsEqualWidth = true;
	layout.marginWidth = 2;
	layout.marginHeight = 5;
	layout.verticalSpacing = 8;
	page.setLayout(layout);

	URLSection urlSection = new URLSection(getPage(), page);
	urlSection.getSection().setLayoutData(new GridData(GridData.FILL_BOTH \| GridData.VERTICAL_ALIGN_BEGINNING));

	URLDetailsSection urlDetailsSection = new URLDetailsSection(getPage(), page);
	urlDetailsSection.getSection().setLayoutData(new GridData(GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_BEGINNING));

	getManagedForm().addPart(urlSection);
	getManagedForm().addPart(urlDetailsSection);
	return page;
	}

	private void updateSelection(ISelection selection) {
	getPage().getPDEEditor().setSelection(selection);
	}

	@Override
	public boolean doGlobalAction(String actionId) {
	if (actionId.equals(ActionFactory.CUT.getId())) {
	fSourceViewer.doOperation(ITextOperationTarget.CUT);
	return true;
	} else if (actionId.equals(ActionFactory.COPY.getId())) {
	fSourceViewer.doOperation(ITextOperationTarget.COPY);
	return true;
	} else if (actionId.equals(ActionFactory.PASTE.getId())) {
	fSourceViewer.doOperation(ITextOperationTarget.PASTE);
	return true;
	} else if (actionId.equals(ActionFactory.DELETE.getId())) {
	fSourceViewer.doOperation(ITextOperationTarget.DELETE);
	return true;
	} else if (actionId.equals(ActionFactory.UNDO.getId())) {
	fSourceViewer.doOperation(ITextOperationTarget.UNDO);
	return true;
	} else if (actionId.equals(ActionFactory.REDO.getId())) {
	fSourceViewer.doOperation(ITextOperationTarget.REDO);
	return true;
	} else if (actionId.equals(ActionFactory.SELECT_ALL.getId())) {
	fSourceViewer.doOperation(ITextOperationTarget.SELECT_ALL);
	}
	return false;
	}

	@Override
	public boolean setFormInput(Object input) {
	if (input instanceof IFeatureInfo) {
	IFeatureInfo info = (IFeatureInfo) input;
	int index = info.getIndex();
	if (index != -1)
	fTabFolder.setSelection(index);
	updateEditorInput(input, false);
	return true;
	}
	if (input instanceof IFeatureURLElement \|\| input instanceof NamedElement) {
	fTabFolder.setSelection(3);
	updateEditorInput(input, false);
	return true;
	}
	return false;
	}

	private void handleApply() {
	if (0 <= fElementIndex && fElementIndex < 2 && fElement != null) {
	handleApply((IFeatureInfo) fElement, fTabFolder.getSelectionIndex());
	} else {
	handleApply(null, fTabFolder.getSelectionIndex());
	}
	}

	private void handleApply(IFeatureInfo info, int index) {
	if (index >= 2)
	return;
	String urlName = fUrlText.getText();
	String text = fDocument.get();
	applyInfoText(info, urlName, text, index);
	updateTabImage(fTabFolder.getSelection());
	}

	private void applyInfoText(IFeatureInfo targetInfo, String urlText, String text, int index) {
	String url = null;

	if (urlText.length() > 0) {
	url = urlText;
	}
	try {
	IFeatureModel model = (IFeatureModel) getPage().getModel();
	IFeature feature = model.getFeature();

	if (targetInfo == null)
	targetInfo = feature.getFeatureInfo(index);

	if (targetInfo == null) {
	targetInfo = model.getFactory().createInfo(index);
	feature.setFeatureInfo(targetInfo, index);
	}
	targetInfo.setURL(url);
	targetInfo.setDescription(text);
	} catch (CoreException e) {
	// TODO: This should probably at least be logged
	}
	}

	protected void fillContextMenu(IMenuManager manager) {
	getPage().getPDEEditor().getContributor().contextMenuAboutToShow(manager);
	}

	public void initialize() {
	IFeatureModel featureModel = (IFeatureModel) getPage().getModel();
	fDocument.addDocumentListener(new IDocumentListener() {
	@Override
	public void documentChanged(DocumentEvent e) {
	infoModified();
	}

	@Override
	public void documentAboutToBeChanged(DocumentEvent e) {
	}
	});
	fUrlText.setEditable(featureModel.isEditable());
	fSourceViewer.getTextWidget().setEditable(featureModel.isEditable());
	featureModel.addModelChangedListener(this);
	updateEditorInput(featureModel.getFeature().getFeatureInfo(0), false);
	}

	@Override
	public void dispose() {
	// Dispose of the source configuration
	if (fSourceConfiguration != null) {
	fSourceConfiguration.dispose();
	}
	IFeatureModel featureModel = (IFeatureModel) getPage().getModel();
	if (featureModel != null)
	featureModel.removeModelChangedListener(this);
	super.dispose();
	}

	private void infoModified() {
	IFeatureModel featureModel = (IFeatureModel) getPage().getModel();
	if (!fIgnoreChange && featureModel instanceof IEditable) {
	markDirty();
	}
	}

	@Override
	public void modelChanged(IModelChangedEvent e) {
	if (e.getChangeType() == IModelChangedEvent.WORLD_CHANGED) {
	markStale();
	}
	}

	@Override
	public void refresh() {
	IFeatureModel model = (IFeatureModel) getPage().getModel();
	int index = fTabFolder.getSelectionIndex();
	if (index < 3) {
	IFeatureInfo info = model.getFeature().getFeatureInfo(index);
	fElement = null;
	fElementIndex = -1;
	updateEditorInput(info, false);
	}
	super.refresh();
	}

	private void createTabs() {
	IFeatureModel model = (IFeatureModel) getPage().getModel();
	IFeature feature = model.getFeature();
	addTab(PDEUIMessages.FeatureEditor_info_description, feature.getFeatureInfo(0));
	addTab(PDEUIMessages.FeatureEditor_info_copyright, feature.getFeatureInfo(1));
	addTab(PDEUIMessages.FeatureEditor_info_license, feature.getFeatureInfo(2));
	addTab(PDEUIMessages.FeatureEditor_info_discoveryUrls, null);
	}

	private void addTab(String label, IFeatureInfo info) {
	CTabItem item = new CTabItem(fTabFolder, SWT.NULL);
	item.setText(label);
	item.setData(info);
	updateTabImage(item);
	}

	private void updateTabImage(CTabItem item) {
	if (item == null)
	return;
	Object info = item.getData();
	if (info != null) {
	item.setImage(PDEPlugin.getDefault().getLabelProvider().getImage(info));
	} else {
	item.setImage(PDEPlugin.getDefault().getLabelProvider().get(PDEPluginImages.DESC_DOC_SECTION_OBJ));
	}
	}

	private void updateTabSelection() {
	IFeatureModel model = (IFeatureModel) getPage().getModel();
	IFeature feature = model.getFeature();
	int index = fTabFolder.getSelectionIndex();
	if (index < 3) {
	IFeatureInfo info = feature.getFeatureInfo(index);
	updateEditorInput(info, true);
	}

	// TODO: Why is this code in both updateEditorInput and updateTabSelection?
	Control oldPage = fNotebookLayout.topControl;
	switch (index) {
	case 0 :
	case 1 :
	fNotebookLayout.topControl = fInfoPage;
	break;
	case 2 :
	fNotebookLayout.topControl = fLicensePage;
	break;
	case 3 :
	fNotebookLayout.topControl = fUrlsPage;
	break;
	}
	if (oldPage != fNotebookLayout.topControl)
	fNotebook.layout();
	}

	@Override
	public void setFocus() {
	fSourceViewer.getTextWidget().setFocus();
	updateSelection(fSourceViewer.getSelection());
	}

	private void commitPrevious() {
	IFeatureInfo previous = (IFeatureInfo) fElement;
	handleApply(previous, fElementIndex);
	}

	public void updateEditorInput(Object input, boolean commitPrevious) {
	if (isDirty() && commitPrevious /*
	* && element != null && element !=
	* input
	*/) {
	commitPrevious();
	}
	fIgnoreChange = true;
	String text = ""; //$NON-NLS-1$
	String url = null;
	if (input instanceof IFeatureInfo) {
	IFeatureInfo info = (IFeatureInfo) input;
	text = info.getDescription();
	url = info.getURL();
	}
	if (text == null)
	text = ""; //$NON-NLS-1$
	else
	text = TextUtil.createMultiLine(text, 60, false);
	fDocument.set(text);
	if (url == null)
	fUrlText.setText(""); //$NON-NLS-1$
	else
	fUrlText.setText(url.toString());
	fElement = input;
	fElementIndex = fTabFolder.getSelectionIndex();

	Control oldPage = fNotebookLayout.topControl;
	switch (fElementIndex) {
	case 0 :
	case 1 :
	fNotebookLayout.topControl = fInfoPage;
	break;
	case 2 :
	fNotebookLayout.topControl = fLicensePage;
	break;
	case 3 :
	fNotebookLayout.topControl = fUrlsPage;
	break;
	}
	if (oldPage != fNotebookLayout.topControl)
	fNotebook.layout();

	fIgnoreChange = false;
	}

	@Override
	public boolean canPaste(Clipboard clipboard) {
	return fSourceViewer.canDoOperation(ITextOperationTarget.PASTE);
	}
	}