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/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.tools;
import org.eclipse.gef.Request;
import org.eclipse.gef.RequestConstants;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.requests.LocationRequest;
import org.eclipse.gef.tools.SelectionTool;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jst.pagedesigner.PDPlugin;
import org.eclipse.jst.pagedesigner.commands.DeleteNodeCommand;
import org.eclipse.jst.pagedesigner.commands.SwitchSelectionCommand;
import org.eclipse.jst.pagedesigner.commands.nav.HorizontalMoveCommand;
import org.eclipse.jst.pagedesigner.commands.nav.ICaretPositionMover;
import org.eclipse.jst.pagedesigner.commands.nav.VerticalMoveCommand;
import org.eclipse.jst.pagedesigner.commands.range.ContentCommand;
import org.eclipse.jst.pagedesigner.commands.range.CopyCommand;
import org.eclipse.jst.pagedesigner.commands.range.CutCommand;
import org.eclipse.jst.pagedesigner.commands.range.DeleteCommand;
import org.eclipse.jst.pagedesigner.commands.range.InsertCommand;
import org.eclipse.jst.pagedesigner.commands.range.KeyboardData;
import org.eclipse.jst.pagedesigner.commands.range.PasteCommand;
import org.eclipse.jst.pagedesigner.commands.range.SelectAllCommand;
import org.eclipse.jst.pagedesigner.common.logging.Logger;
import org.eclipse.jst.pagedesigner.editors.pagedesigner.PageDesignerResources;
import org.eclipse.jst.pagedesigner.parts.DocumentEditPart;
import org.eclipse.jst.pagedesigner.requests.LocationModifierRequest;
import org.eclipse.jst.pagedesigner.viewer.HTMLGraphicalViewer;
import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
/**
* @author mengbo
*/
public class RangeSelectionTool extends SelectionTool {
static final private Logger _log = PDPlugin
.getLogger(RangeSelectionTool.class);
private LocationRequest _hoverRequest;
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.tools.SelectionTool#handleKeyDown(org.eclipse.swt.events.KeyEvent)
*/
protected boolean handleKeyDown(KeyEvent e) {
// resetHover() is not visible.
if (isHoverActive()) {
handleHoverStop();
}
setHoverActive(false);
if ((e.stateMask & SWT.ALT) != 0) {
return false;
}
Command command = null;
KeyboardData keyCode = null;
switch (e.keyCode) {
case SWT.F2:
command = new SwitchSelectionCommand((IHTMLGraphicalViewer) this
.getCurrentViewer());
break;
case SWT.ARROW_UP:
command = new VerticalMoveCommand((IHTMLGraphicalViewer) this
.getCurrentViewer(), true, (e.stateMask & SWT.SHIFT) != 0);
break;
case SWT.ARROW_DOWN:
command = new VerticalMoveCommand((IHTMLGraphicalViewer) this
.getCurrentViewer(), false, (e.stateMask & SWT.SHIFT) != 0);
break;
case SWT.ARROW_LEFT:
command = new HorizontalMoveCommand((IHTMLGraphicalViewer) this
.getCurrentViewer(), false, (e.stateMask & SWT.SHIFT) != 0);
break;
case SWT.ARROW_RIGHT:
command = new HorizontalMoveCommand((IHTMLGraphicalViewer) this
.getCurrentViewer(), true, (e.stateMask & SWT.SHIFT) != 0);
break;
case SWT.DEL:
if ((e.stateMask & SWT.SHIFT) == 0) {
if (getCurrentViewer().getSelection() != null) {
ISelection selection = getCurrentViewer().getSelection();
if (selection instanceof StructuredSelection) {
Object object = ((StructuredSelection) selection)
.getFirstElement();
if (!(object instanceof DocumentEditPart)) {
// "delete node"
command = new DeleteNodeCommand(
(IHTMLGraphicalViewer) getCurrentViewer());
}
}
}
if (command == null) {
// "delete"
command = new DeleteCommand(true,
(IHTMLGraphicalViewer) this.getCurrentViewer()); //$NON-NLS-1$
}
} else {
// "cut"
command = new CutCommand((IHTMLGraphicalViewer) this
.getCurrentViewer()); //$NON-NLS-1$
e.doit = false;
}
break;
case SWT.BS:
// "delete"
command = new DeleteCommand(false, (IHTMLGraphicalViewer) this
.getCurrentViewer()); //$NON-NLS-1$
e.doit = false;
break;
case SWT.INSERT:
if ((e.stateMask & SWT.SHIFT) != 0) {
// "paste"
command = new PasteCommand((IHTMLGraphicalViewer) this
.getCurrentViewer()); //$NON-NLS-1$
e.doit = false;
break;
} else if ((e.stateMask & SWT.CONTROL) != 0) {
// "copy"
command = new CopyCommand((IHTMLGraphicalViewer) this
.getCurrentViewer()); //$NON-NLS-1$
e.doit = false;
break;
}
break;
case SWT.LF:
case SWT.CR:
// "insert"
keyCode = new KeyboardData(e.character, e.stateMask,
(IHTMLGraphicalViewer) getCurrentViewer());
command = new InsertCommand(
PageDesignerResources.getInstance().getString(
"RangeSelectionTool.CommandLabel.Insert"), (IHTMLGraphicalViewer) this.getCurrentViewer(), keyCode); //$NON-NLS-1$
e.doit = false;
break;
default:
if (e.keyCode == 'a' && (e.stateMask & SWT.CTRL) != 0) {
command = new SelectAllCommand("selectAll",
(IHTMLGraphicalViewer) this.getCurrentViewer());
e.doit = false;
} else {
if (getCurrentViewer() instanceof HTMLGraphicalViewer
&& ((HTMLGraphicalViewer) getCurrentViewer())
.isInRangeMode()
&& (!Character.isIdentifierIgnorable(e.character) && !Character
.isISOControl(e.character))
|| (e.character == '\r')) {
keyCode = new KeyboardData(e.character, e.stateMask,
(IHTMLGraphicalViewer) getCurrentViewer());
// "insert"
command = new InsertCommand(
PageDesignerResources.getInstance().getString(
"RangeSelectionTool.CommandLabel.Insert"), (IHTMLGraphicalViewer) this.getCurrentViewer(), keyCode); //$NON-NLS-1$
e.doit = false;
break;
} else {
return super.handleKeyDown(e);
}
}
}
if (command != null) {
command.execute();
e.doit = false;
if (command instanceof ICaretPositionMover) {
if (getCurrentViewer() instanceof HTMLGraphicalViewer) {
((HTMLGraphicalViewer) getCurrentViewer())
.updateHorizontalPos();
}
}
return true;
}
return false;
}
/**
* @param e
* @return
*/
protected boolean handleObjectModeKeyDown(KeyEvent e) {
// TODO Auto-generated method stub
return false;
}
// /**
// * @param e
// * @return
// */
// protected boolean handleRangeModeKeyDown(KeyEvent e)
// {
// if (e.keyCode == SWT.SHIFT || e.keyCode == SWT.CONTROL || e.keyCode ==
// SWT.ALT)
// {
// return false;
// }
//
// dumpKey(e);
// Command command = null;
// switch (e.keyCode)
// {
// case SWT.ARROW_LEFT:
// command = new HorizontalMoveCommand((IHTMLGraphicalViewer)
// this.getCurrentViewer(), false,
// (e.stateMask & SWT.SHIFT) != 0);
// break;
// case SWT.ARROW_RIGHT:
// command = new HorizontalMoveCommand((IHTMLGraphicalViewer)
// this.getCurrentViewer(), true,
// (e.stateMask & SWT.SHIFT) != 0);
// break;
//
// }
// if (command != null)
// {
// command.execute();
// return true;
// }
//
// char content = e.character;
//
// // when reach here, should be standard content keys.
// return handleRangeModeContentChar(content);
// }
/**
* For inner debuging.
*
* @param e
*/
private void dumpKey(KeyEvent e) {
String message = "code:" + Integer.toBinaryString(e.keyCode) + "char:" + e.character + "key:" + Integer.toBinaryString(e.stateMask); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
_log.info(message);
}
/**
* @param content
*/
private boolean handleRangeModeContentChar(char content) {
IHTMLGraphicalViewer viewer = (IHTMLGraphicalViewer) this
.getCurrentViewer();
ContentCommand c = new ContentCommand(viewer, content);
c.execute();
return true;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.tools.SelectionTool#createHoverRequest()
*/
protected void createHoverRequest() {
this._hoverRequest = new LocationModifierRequest();
_hoverRequest.setType(RequestConstants.REQ_SELECTION_HOVER);
}
protected Request getTargetHoverRequest() {
if (_hoverRequest == null) {
createHoverRequest();
}
return _hoverRequest;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.tools.SelectionTool#updateHoverRequest()
*/
protected void updateHoverRequest() {
LocationModifierRequest request = (LocationModifierRequest) getTargetHoverRequest();
request.setLocation(getLocation());
request.setControlKeyPressed(getCurrentInput().isControlKeyDown());
}
}
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