| /******************************************************************************* |
| * Copyright (c) 2010 SAP AG. |
| * 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: |
| * Emil Simeonov - initial API and implementation. |
| * Dimitar Donchev - initial API and implementation. |
| * Dimitar Tenev - initial API and implementation. |
| * Nevena Manova - initial API and implementation. |
| * Georgi Konstantinov - initial API and implementation. |
| *******************************************************************************/ |
| package org.eclipse.wst.sse.sieditor.ui.v2.wsdltree; |
| |
| import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent; |
| import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.KeyEvent; |
| import org.eclipse.swt.events.KeyListener; |
| import org.eclipse.swt.events.MouseEvent; |
| |
| import org.eclipse.wst.sse.sieditor.ui.v2.nodes.ITreeNode; |
| |
| public class SITreeViewerEditorActivationStrategy extends ColumnViewerEditorActivationStrategy { |
| |
| private static final int RIGHT_MOUSE_BUTTON_ID = 3; |
| |
| protected static final int LOWERBOUND_OF_TIME_RANGE_FOR_CELL_EDITING = 1000; |
| protected static final int UPPERBOUND_OF_TIME_RANGE_FOR_CELL_EDITING = 4000; |
| |
| protected ITreeNode lastSelectedElement; |
| protected boolean isModifiable = false; |
| protected long timeOfLastClick = 0; |
| |
| protected KeyListener keyboardActivationListener; |
| protected TreeViewer viewer; |
| |
| public SITreeViewerEditorActivationStrategy(final TreeViewer viewer) { |
| super(viewer); |
| this.viewer = viewer; |
| |
| } |
| |
| @Override |
| protected boolean isEditorActivationEvent(final ColumnViewerEditorActivationEvent event) { |
| // if "F2" button is pressed, the eventType is SWT.ALPHA and the |
| // function must return the default implementation |
| if (isF2KeyPressedEvent(event)) { |
| return super.isEditorActivationEvent(event); |
| } |
| |
| final int count = getMouseEvent(event).count; |
| if (getMouseEvent(event).button == RIGHT_MOUSE_BUTTON_ID) { |
| return false; |
| } |
| |
| final ITreeNode currentSelection = (ITreeNode) ((IStructuredSelection) viewer.getSelection()).getFirstElement(); |
| |
| final long currentTimeInMillSec = System.currentTimeMillis(); |
| |
| final boolean isInTimeRangeForEditing = (currentTimeInMillSec - timeOfLastClick > LOWERBOUND_OF_TIME_RANGE_FOR_CELL_EDITING) |
| && (currentTimeInMillSec - timeOfLastClick < UPPERBOUND_OF_TIME_RANGE_FOR_CELL_EDITING); |
| |
| if (isInTimeRangeForEditing && currentSelection != null && (currentSelection.equals(lastSelectedElement)) && count < 2) { |
| isModifiable = true; |
| } else { |
| isModifiable = false; |
| } |
| timeOfLastClick = currentTimeInMillSec; |
| lastSelectedElement = currentSelection; |
| |
| return isModifiable; |
| } |
| |
| @Override |
| public void setEnableEditorActivationWithKeyboard(final boolean enable) { |
| if (enable) { |
| if (keyboardActivationListener == null) { |
| keyboardActivationListener = new KeyListener() { |
| |
| public void keyPressed(final KeyEvent e) { |
| if (e.keyCode == SWT.F2) { |
| final Object firstElement = ((IStructuredSelection) viewer.getSelection()).getFirstElement(); |
| viewer.editElement(firstElement, 0); |
| } |
| } |
| |
| public void keyReleased(final KeyEvent e) { |
| |
| } |
| |
| }; |
| viewer.getControl().addKeyListener(keyboardActivationListener); |
| } |
| } else { |
| if (keyboardActivationListener != null) { |
| viewer.getControl().removeKeyListener(keyboardActivationListener); |
| keyboardActivationListener = null; |
| } |
| } |
| } |
| |
| public KeyListener getKeyListener() { |
| return keyboardActivationListener; |
| } |
| |
| protected MouseEvent getMouseEvent(final ColumnViewerEditorActivationEvent event) { |
| return ((MouseEvent) event.sourceEvent); |
| } |
| |
| |
| protected boolean isF2KeyPressedEvent(final ColumnViewerEditorActivationEvent event) { |
| if (event == null) |
| return false; |
| return event.eventType == SWT.ALPHA; |
| |
| } |
| |
| } |