/*******************************************************************************
* 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.dnd.internal;
import org.eclipse.gef.EditDomain;
import org.eclipse.gef.palette.ToolEntry;
import org.eclipse.jst.pagedesigner.commands.PaletteDropInsertCommand;
import org.eclipse.jst.pagedesigner.commands.SourceViewerCommand;
import org.eclipse.jst.pagedesigner.editors.pagedesigner.PageDesignerResources;
import org.eclipse.jst.pagedesigner.editors.palette.IDropSourceDataProvider;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.events.MouseMoveListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.wst.sse.ui.StructuredTextEditor;
import org.eclipse.wst.sse.ui.internal.ExtendedEditorDropTargetAdapter;
/**
* @author mengbo
*/
public class DesignerSourceMouseTrackAdapter extends
ExtendedEditorDropTargetAdapter implements MouseListener,
MouseMoveListener {
private int _location;
private StructuredTextEditor _textEditor;
private EditDomain _domain;
/**
* @param textEditor
* @param domain
*/
public DesignerSourceMouseTrackAdapter(StructuredTextEditor textEditor,
EditDomain domain) {
super(false);
_textEditor = textEditor;
_domain = domain;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.events.MouseMoveListener#mouseMove(org.eclipse.swt.events.MouseEvent)
*/
public void mouseMove(MouseEvent event) {
//Feedback is handled by DesignerSourceDropTargetListener - commenting out below
Object object = getPaletteObject();
StyledText text = null;
if (_textEditor.getTextViewer() != null) {
text = _textEditor.getTextViewer().getTextWidget();
} else {
return;
}
if (object == null) {
// set to default cusror
text.setCursor(null);
return;
}
Point p = new Point(event.x, event.y);
p = _textEditor.getTextViewer().getTextWidget().toDisplay(p);
SourceViewerDragDropHelper.getInstance().updateCaret(_textEditor, p);
_location = text.getCaretOffset();
_location = SourceViewerDragDropHelper.getInstance().getValidLocation(
_textEditor, _location);
_location = SourceViewerDragDropHelper.getInstance().showCaret(
_textEditor, _location);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.events.MouseListener#mouseUp(org.eclipse.swt.events.MouseEvent)
*/
public void mouseUp(MouseEvent event) {
if (event.button != 1) {
if (_domain.getPaletteViewer() != null) {
_domain.getPaletteViewer().setActiveTool(null);
}
return;
}
SourceViewerCommand command = getCommand(event);
if (command != null) {
command.execute();
resetPalette();
}
_location = 0;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.palette.PaletteListener#activeToolChanged(org.eclipse.gef.ui.palette.PaletteViewer,
* org.eclipse.gef.palette.ToolEntry)
*/
private IDropSourceDataProvider getPaletteObject() {
if (_domain.getPaletteViewer() != null) {
Object tool = _domain.getPaletteViewer().getActiveTool();
if (tool instanceof IDropSourceDataProvider) {
return (IDropSourceDataProvider) tool;
}
}
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.events.MouseListener#mouseDoubleClick(org.eclipse.swt.events.MouseEvent)
*/
public void mouseDoubleClick(MouseEvent e) {
// do nothing
}
/*
* (non-Javadoc)
*
* @see org.eclipse.swt.events.MouseListener#mouseDown(org.eclipse.swt.events.MouseEvent)
*/
public void mouseDown(MouseEvent e) {
// do nothing
}
private PaletteDropInsertCommand getCommand(MouseEvent event) {
IDropSourceDataProvider data = getPaletteObject();
PaletteDropInsertCommand command = null;
if (data != null) {
// "Create new item"
command = new PaletteDropInsertCommand(
PageDesignerResources
.getInstance()
.getString(
"DesignerSourceDropTargetListener.InserCommandLabel"), //$NON-NLS-1$
_textEditor, data.getDropSourceData(), _location);
}
return command;
}
private void resetPalette() {
if (_domain.getPaletteViewer() != null) {
ToolEntry tool = _domain.getPaletteViewer().getPaletteRoot()
.getDefaultEntry();
if (tool != null) {
_domain.getPaletteViewer().setActiveTool(tool);
}
}
}
}