| /******************************************************************************* |
| * Copyright (c) 2014, 2017 TwelveTone LLC 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: |
| * Steven Spungin <steven@spungin.tv> - initial API and implementation, Bug 432555 |
| *******************************************************************************/ |
| |
| package org.eclipse.e4.tools.emf.ui.internal.common.component.tabs.empty; |
| |
| import org.eclipse.e4.tools.emf.ui.internal.common.component.tabs.Messages; |
| import org.eclipse.jface.dialogs.TitleAreaDialog; |
| import org.eclipse.jface.viewers.ArrayContentProvider; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Text; |
| |
| /** |
| * Extends TitleAreaDialog to include a filter text box.<br /> |
| * If no item is selected, the dialog result is Dialog.Cancel, even if OK is |
| * pressed. A result of Dialog.Ok is ensured to have at least 1 selected item. |
| * |
| * @author Steven Spungin |
| * |
| */ |
| public class TitleAreaFilterDialog extends TitleAreaDialog { |
| |
| private ILabelProvider labelProvider; |
| private TableViewer viewer; |
| private Object result; |
| private Text text; |
| |
| public TitleAreaFilterDialog(Shell parentShell, ILabelProvider labelProvider) { |
| super(parentShell); |
| this.labelProvider = labelProvider; |
| } |
| |
| @Override |
| protected boolean isResizable() { |
| return true; |
| } |
| |
| @Override |
| protected Control createDialogArea(Composite parent) { |
| Composite comp = (Composite) super.createDialogArea(parent); |
| |
| comp.setLayoutData(new GridData(GridData.FILL_BOTH)); |
| comp.setLayout(new GridLayout(1, false)); |
| |
| text = new Text(comp, SWT.BORDER | SWT.SEARCH | SWT.ICON_SEARCH); |
| text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); |
| text.setMessage(Messages.TitleAreaFilterDialog_enterFilterText); |
| |
| viewer = new TableViewer(comp, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER | SWT.FULL_SELECTION); |
| viewer.getTable().setLayoutData(new GridData(GridData.FILL_BOTH)); |
| viewer.setLabelProvider(labelProvider); |
| viewer.setContentProvider(ArrayContentProvider.getInstance()); |
| |
| viewer.setFilters(new ViewerFilter[] { new ViewerFilter() { |
| |
| @Override |
| public boolean select(Viewer viewer, Object parentElement, Object element) { |
| return isFiltered(element, text.getText()); |
| } |
| } }); |
| |
| text.addModifyListener(e -> viewer.refresh()); |
| |
| viewer.addDoubleClickListener(event -> { |
| result = ((IStructuredSelection) viewer.getSelection()).getFirstElement(); |
| if (result != null) { |
| okPressed(); |
| } |
| }); |
| |
| return comp; |
| } |
| |
| /** |
| * Default returns true if string value contains the filterText, and it is |
| * case insensitive. |
| * |
| * @param element |
| * @param filterText |
| * @return |
| */ |
| protected boolean isFiltered(Object element, String filterText) { |
| filterText = filterText.toLowerCase(); |
| if (filterText.isEmpty()) { |
| return true; |
| } else if (element.toString().toLowerCase().contains(filterText)) { |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| protected void okPressed() { |
| result = ((IStructuredSelection) viewer.getSelection()).getFirstElement(); |
| if (result == null) { |
| cancelPressed(); |
| } else { |
| super.okPressed(); |
| } |
| } |
| |
| public void setElements(Object[] array) { |
| viewer.setInput(array); |
| } |
| |
| public Object getFirstElement() { |
| return result; |
| } |
| |
| protected TableViewer getViewer() { |
| return viewer; |
| } |
| |
| protected Text getText() { |
| return text; |
| } |
| |
| public String getFirstSelection() { |
| Object firstElement = getFirstElement(); |
| if (firstElement instanceof String) { |
| return (String) firstElement; |
| } |
| return firstElement.toString(); |
| } |
| |
| } |