| /*=============================================================================# |
| # Copyright (c) 2010, 2019 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.internal.r.ui.rhelp; |
| |
| import java.util.List; |
| |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.dialogs.ElementTreeSelectionDialog; |
| |
| import org.eclipse.statet.rhelp.core.RHelpKeywordGroup; |
| import org.eclipse.statet.rhelp.core.RHelpKeywordNode; |
| |
| |
| public class KeywordSelectionDialog extends ElementTreeSelectionDialog { |
| |
| |
| public static class KeywordsContentProvider implements ITreeContentProvider { |
| |
| @Override |
| public void inputChanged(final Viewer viewer, final Object oldInput, final Object newInput) { |
| } |
| |
| @Override |
| public Object[] getElements(final Object inputElement) { |
| return ((List<?>) inputElement).toArray(); |
| } |
| |
| @Override |
| public void dispose() { |
| } |
| |
| @Override |
| public Object getParent(final Object element) { |
| return null; |
| } |
| |
| @Override |
| public Object[] getChildren(final Object parentElement) { |
| if (parentElement instanceof RHelpKeywordNode) { |
| return ((RHelpKeywordNode) parentElement).getNestedKeywords().toArray(); |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean hasChildren(final Object element) { |
| return (element instanceof RHelpKeywordNode |
| && !((RHelpKeywordNode) element).getNestedKeywords().isEmpty() ); |
| } |
| |
| } |
| |
| |
| public KeywordSelectionDialog(final Shell parent, final List<RHelpKeywordGroup> keywords) { |
| super(parent, new RHelpLabelProvider(), new KeywordsContentProvider()); |
| setShellStyle(getShellStyle() | SWT.SHEET); |
| setTitle(Messages.KeywordSelection_title); |
| setMessage(Messages.KeywordSelection_message); |
| setInput(keywords); |
| setAllowMultiple(false); |
| } |
| |
| @Override |
| protected Control createContents(final Composite parent) { |
| final Control control= super.createContents(parent); |
| getTreeViewer().expandToLevel(1); |
| return control; |
| } |
| |
| } |