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/******************************************************************************* |
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* Copyright (c) 2004, 2007 Mylyn project committers and others. |
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* All rights reserved. This program and the accompanying materials |
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* are made available under the terms of the Eclipse Public License v1.0 |
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* which accompanies this distribution, and is available at |
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* http://www.eclipse.org/legal/epl-v10.html |
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*******************************************************************************/ |
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package org.eclipse.mylyn.internal.sandbox.ui.editors; |
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import org.eclipse.jface.text.Document; |
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import org.eclipse.jface.text.ITextListener; |
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import org.eclipse.jface.text.TextEvent; |
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import org.eclipse.jface.text.source.SourceViewer; |
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import org.eclipse.jface.viewers.Viewer; |
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import org.eclipse.mylyn.internal.provisional.commons.ui.CommonThemes; |
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import org.eclipse.mylyn.internal.tasks.ui.editors.RichTextAttributeEditor; |
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import org.eclipse.mylyn.tasks.core.TaskRepository; |
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import org.eclipse.mylyn.tasks.core.data.TaskAttribute; |
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import org.eclipse.mylyn.tasks.core.data.TaskDataModel; |
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import org.eclipse.swt.SWT; |
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import org.eclipse.swt.custom.CTabFolder; |
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import org.eclipse.swt.custom.CTabItem; |
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import org.eclipse.swt.events.DisposeEvent; |
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import org.eclipse.swt.events.DisposeListener; |
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import org.eclipse.swt.events.FocusEvent; |
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import org.eclipse.swt.events.FocusListener; |
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import org.eclipse.swt.events.SelectionEvent; |
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import org.eclipse.swt.events.SelectionListener; |
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import org.eclipse.swt.graphics.Font; |
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import org.eclipse.swt.widgets.Composite; |
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import org.eclipse.ui.PlatformUI; |
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import org.eclipse.ui.contexts.IContextActivation; |
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import org.eclipse.ui.contexts.IContextService; |
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import org.eclipse.ui.forms.widgets.FormToolkit; |
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import org.eclipse.ui.themes.IThemeManager; |
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/** |
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* A multitab source viewer that can edit and preview Textile wikitext markup. |
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* |
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* TODO generalize RichTextAttributeEditor: add a protected method to create the SourceViewer then subclasses can then |
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* create its own SourceViewer without overriding createControl and copying the code in it |
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* |
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* @author Jingwen Ou |
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*/ |
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public class ExtensibleRichTextAttributeEditor extends RichTextAttributeEditor { |
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private SourceViewer source; |
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private final TaskRepository taskRepository; |
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private final int styles; |
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private final IContextService contextService; |
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private IContextActivation contextActivation; |
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private final AbstractTaskEditorExtension extension; |
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public ExtensibleRichTextAttributeEditor(IContextService contextService, TaskDataModel manager, |
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TaskRepository taskRepository, AbstractTaskEditorExtension extension, TaskAttribute taskAttribute, |
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int styles) { |
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super(manager, taskRepository, taskAttribute, styles); |
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this.contextService = contextService; |
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this.taskRepository = taskRepository; |
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this.extension = extension; |
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this.styles = styles; |
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} |
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@Override |
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public SourceViewer getViewer() { |
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return source; |
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} |
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@Override |
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public void createControl(Composite parent, FormToolkit toolkit) { |
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if (isReadOnly()) { |
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source = extension.createViewer(taskRepository, parent, styles); |
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source.setDocument(new Document(getValue())); |
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setControl(source instanceof Viewer ? ((Viewer) source).getControl() : source.getTextWidget()); |
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} else { |
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CTabFolder folder = new CTabFolder(parent, SWT.FLAT | SWT.BOTTOM); |
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/** wikitext markup editor **/ |
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CTabItem viewerItem = new CTabItem(folder, SWT.NONE); |
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viewerItem.setText("Source"); |
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viewerItem.setToolTipText("Edit Source"); |
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source = extension.createEditor(taskRepository, folder, styles | SWT.V_SCROLL); |
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if (source.getDocument() == null) { |
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source.setDocument(new Document(getValue())); |
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} |
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source.addTextListener(new ITextListener() { |
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public void textChanged(TextEvent event) { |
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// filter out events caused by text presentation changes, e.g. annotation drawing |
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String value = source.getTextWidget().getText(); |
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if (!getValue().equals(value)) { |
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setValue(value); |
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} |
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} |
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}); |
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source.getControl().setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER); |
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//setting up focus stuff, copied from Daivd's solution |
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FocusListener focusListener = new FocusListener() { |
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public void focusGained(FocusEvent e) { |
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setContext(); |
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} |
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public void focusLost(FocusEvent e) { |
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unsetContext(); |
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} |
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}; |
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source.getTextWidget().addFocusListener(focusListener); |
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DisposeListener disposeListener = new DisposeListener() { |
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public void widgetDisposed(DisposeEvent e) { |
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unsetContext(); |
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} |
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}; |
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source.getTextWidget().addDisposeListener(disposeListener); |
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viewerItem.setControl(source instanceof Viewer ? ((Viewer) source).getControl() : source.getTextWidget()); |
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folder.setSelection(viewerItem); |
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/** wikitext markup viewer **/ |
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CTabItem previewItem = new CTabItem(folder, SWT.NONE); |
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previewItem.setText("Preview"); |
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previewItem.setToolTipText("Preview Source"); |
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final SourceViewer preview = extension.createViewer(taskRepository, folder, styles); |
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previewItem.setControl(preview instanceof Viewer ? ((Viewer) preview).getControl() |
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: preview.getTextWidget()); |
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folder.addSelectionListener(new SelectionListener() { |
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public void widgetDefaultSelected(SelectionEvent selectionevent) { |
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widgetSelected(selectionevent); |
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} |
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public void widgetSelected(SelectionEvent selectionevent) { |
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Document document = new Document(source.getDocument().get()); |
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preview.setDocument(document); |
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} |
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}); |
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setControl(folder); |
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} |
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IThemeManager themeManager = PlatformUI.getWorkbench().getThemeManager(); |
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Font font = themeManager.getCurrentTheme().getFontRegistry().get(CommonThemes.FONT_EDITOR_COMMENT); |
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source.getTextWidget().setFont(font); |
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toolkit.adapt(source.getControl(), true, false); |
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} |
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protected void unsetContext() { |
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if (contextActivation != null) { |
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contextService.deactivateContext(contextActivation); |
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contextActivation = null; |
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} |
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} |
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protected void setContext() { |
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if (contextActivation != null) { |
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contextService.deactivateContext(contextActivation); |
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contextActivation = null; |
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} |
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if (contextService != null && extension.getEditorContextId() != null) { |
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contextActivation = contextService.activateContext(extension.getEditorContextId()); |
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} |
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} |
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} |
