org.eclipse.egit.ui/src/org/eclipse/egit/ui/internal/components/ClickableCellEditor.java

   1 /*******************************************************************************
   2  * Copyright (C) 2008, Marek Zawirski <marek.zawirski@gmail.com>
   3  *
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *******************************************************************************/
   9 package org.eclipse.egit.ui.internal.components;
  10
  11 import org.eclipse.jface.viewers.CellEditor;
  12 import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
  13 import org.eclipse.swt.SWT;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.swt.widgets.Control;
  16 import org.eclipse.swt.widgets.Table;
  17
  18 /**
  19  * Workaround class allowing usage of clickable element as a TableViewer cell,
  20  * acting as button.
  21  * <p>
  22  * setValue method of EditingSupport is called on cell click, with this cell
  23  * editor configured.
  24  *
  25  */
  26 public class ClickableCellEditor extends CellEditor {
  27
  28         /**
  29          * Create cell editor for provided table.
  30          *
  31          * @param table
  32          *            the parent table.
  33          */
  34         public ClickableCellEditor(final Table table) {
  35                 super(table, SWT.NONE);
  36         }
  37
  38         @Override
  39         protected Control createControl(Composite parent) {
  40                 return null;
  41         }
  42
  43         @Override
  44         protected Object doGetValue() {
  45                 return null;
  46         }
  47
  48         @Override
  49         protected void doSetFocus() {
  50                 // nothing to do
  51         }
  52
  53         @Override
  54         protected void doSetValue(Object value) {
  55                 // nothing to do
  56         }
  57
  58         @Override
  59         public void activate() {
  60                 // just force setValue on editing support
  61                 fireApplyEditorValue();
  62         }
  63
  64         public void activate(ColumnViewerEditorActivationEvent activationEvent) {
  65                 if (activationEvent.eventType != ColumnViewerEditorActivationEvent.TRAVERSAL) {
  66                         super.activate(activationEvent);
  67                 }
  68         }
  69 }