| /* |
| * Copyright (c) 2014, 2015 Eike Stepper (Berlin, Germany) 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: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.oomph.ui; |
| |
| import org.eclipse.oomph.util.ReflectUtil; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.KeyAdapter; |
| import org.eclipse.swt.events.KeyEvent; |
| import org.eclipse.swt.events.TraverseEvent; |
| import org.eclipse.swt.events.TraverseListener; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Text; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.ui.IWorkbenchPreferenceConstants; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.dialogs.FilteredTree; |
| import org.eclipse.ui.dialogs.PatternFilter; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public class SearchField extends Composite |
| { |
| private final FilteredTree filteredTree; |
| |
| public SearchField(Composite parent, final FilterHandler filterHandler) |
| { |
| super(parent, SWT.NONE); |
| setLayout(new FirstChildLayout()); |
| |
| final PatternFilter patternFilter = new PatternFilter() |
| { |
| @Override |
| public Object[] filter(Viewer viewer, Object parent, Object[] elements) |
| { |
| if (filteredTree != null) |
| { |
| Text filterControl = filteredTree.getFilterControl(); |
| String filter = filterControl.getText(); |
| filterHandler.handleFilter(filter); |
| } |
| |
| return new Object[0]; |
| } |
| }; |
| |
| filteredTree = new FilteredTree(this, SWT.NONE, patternFilter, true) |
| { |
| @Override |
| @SuppressWarnings("restriction") |
| protected void init(int treeStyle, PatternFilter filter) |
| { |
| ReflectUtil.setValue("patternFilter", this, filter); |
| |
| showFilterControls = PlatformUI.getPreferenceStore().getBoolean(IWorkbenchPreferenceConstants.SHOW_FILTERED_TEXTS); |
| createControl(SearchField.this, treeStyle); |
| |
| Job refreshJob = new Job("Refresh Filter") |
| { |
| @Override |
| protected IStatus run(IProgressMonitor monitor) |
| { |
| UIUtil.syncExec(new Runnable() |
| { |
| public void run() |
| { |
| patternFilter.filter(treeViewer, (Object)null, null); |
| } |
| }); |
| |
| return Status.OK_STATUS; |
| } |
| }; |
| |
| refreshJob.setSystem(true); |
| ReflectUtil.setValue("refreshJob", this, refreshJob); |
| |
| setInitialText(org.eclipse.ui.internal.WorkbenchMessages.FilteredTree_FilterMessage); |
| setFont(SearchField.this.getFont()); |
| } |
| |
| @Override |
| protected void createControl(Composite xxx, int treeStyle) |
| { |
| super.createControl(SearchField.this, treeStyle); |
| |
| Tree tree = treeViewer.getTree(); |
| tree.setParent(SearchField.this); |
| tree.setLayoutData(new GridData(0, 0)); |
| |
| treeComposite.dispose(); |
| treeComposite = null; |
| } |
| }; |
| |
| final Text filterControl = filteredTree.getFilterControl(); |
| filterControl.addTraverseListener(new TraverseListener() |
| { |
| public void keyTraversed(TraverseEvent e) |
| { |
| if (e.keyCode == SWT.ESC) |
| { |
| if (!"".equals(filterControl.getText())) |
| { |
| filterControl.setText(""); |
| e.doit = false; |
| } |
| } |
| } |
| }); |
| |
| filterControl.addKeyListener(new KeyAdapter() |
| { |
| @Override |
| public void keyPressed(KeyEvent e) |
| { |
| if (e.keyCode == SWT.CR || e.keyCode == SWT.ARROW_DOWN) |
| { |
| finishFilter(); |
| e.doit = false; |
| } |
| } |
| }); |
| } |
| |
| public final PatternFilter getPatternFilter() |
| { |
| return filteredTree.getPatternFilter(); |
| } |
| |
| public final Text getFilterControl() |
| { |
| return filteredTree.getFilterControl(); |
| } |
| |
| public final void setInitialText(String text) |
| { |
| filteredTree.setInitialText(text); |
| } |
| |
| @Override |
| public final boolean getEnabled() |
| { |
| return filteredTree.getEnabled(); |
| } |
| |
| @Override |
| public void setEnabled(boolean enabled) |
| { |
| filteredTree.setEnabled(enabled); |
| } |
| |
| @Override |
| public boolean setFocus() |
| { |
| return getFilterControl().setFocus(); |
| } |
| |
| @Override |
| protected void checkSubclass() |
| { |
| // Do nothing. |
| } |
| |
| /** |
| * Subclasses may override. |
| * @param e |
| */ |
| protected void finishFilter() |
| { |
| // Do nothing. |
| } |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public interface FilterHandler |
| { |
| public void handleFilter(String filter); |
| } |
| } |