/**
* This file Copyright (c) 2005-2008 Aptana, Inc. This program is
* dual-licensed under both the Aptana Public License and the GNU General
* Public license. You may elect to use one or the other of these licenses.
*
* This program is distributed in the hope that it will be useful, but
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
* NONINFRINGEMENT. Redistribution, except as permitted by whichever of
* the GPL or APL you select, is prohibited.
*
* 1. For the GPL license (GPL), you can redistribute and/or modify this
* program under the terms of the GNU General Public License,
* Version 3, as published by the Free Software Foundation. You should
* have received a copy of the GNU General Public License, Version 3 along
* with this program; if not, write to the Free Software Foundation, Inc., 51
* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Aptana provides a special exception to allow redistribution of this file
* with certain other free and open source software ("FOSS") code and certain additional terms
* pursuant to Section 7 of the GPL. You may view the exception and these
* terms on the web at http://www.aptana.com/legal/gpl/.
*
* 2. For the Aptana Public License (APL), this program and the
* accompanying materials are made available under the terms of the APL
* v1.0 which accompanies this distribution, and is available at
* http://www.aptana.com/legal/apl/.
*
* You may view the GPL, Aptana's exception and additional terms, and the
* APL in the file titled license.html at the root of the corresponding
* plugin containing this source file.
*
* Any modifications to this file must keep this entire header intact.
*/
package com.aptana.ide.debug.internal.ui.actions;
import java.lang.reflect.Constructor;
import org.eclipse.debug.core.model.IExpression;
import org.eclipse.debug.core.model.IWatchExpressionResult;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IInformationControl;
import org.eclipse.jface.text.IInformationControlCreator;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.Region;
import org.eclipse.jface.text.TextUtilities;
import org.eclipse.jface.text.information.IInformationProvider;
import org.eclipse.jface.text.information.InformationPresenter;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import com.aptana.ide.core.IdeLog;
import com.aptana.ide.core.StringUtils;
import com.aptana.ide.debug.core.model.JSInspectExpression;
import com.aptana.ide.debug.ui.DebugUiPlugin;
import com.aptana.ide.editors.unified.IUnifiedEditor;
/**
* @author Max Stepanov
*/
public class PopupInspectAction extends InspectAction implements IInformationProvider
{
/**
* ACTION_DEFININIITION_ID
*/
public static final String ACTION_DEFININIITION_ID = "com.aptana.ide.debug.ui.commands.Inspect"; //$NON-NLS-1$
private ITextViewer viewer;
private JSInspectExpression expression;
private InformationPresenter fInformationPresenter;
/**
* see org.eclipse.jface.text.information.IInformationProvider#getInformation(org.eclipse.jface.text.ITextViewer,
* org.eclipse.jface.text.IRegion)
* @param textViewer
* @param subject
* @return String
*/
public String getInformation(ITextViewer textViewer, IRegion subject)
{
// the ExpressionInformationControlAdapter was constructed with everything that it needs
// returning null would result in popup not being displayed
return "not null"; //$NON-NLS-1$
}
/**
* @see org.eclipse.jface.text.information.IInformationProvider#getSubject(org.eclipse.jface.text.ITextViewer, int)
*/
public IRegion getSubject(ITextViewer textViewer, int offset)
{
return getRegion();
}
/**
* showPopup
*
* @param result
*/
protected void showPopup(final IWatchExpressionResult result)
{
try
{
Class.forName("org.eclipse.debug.ui.InspectPopupDialog"); //$NON-NLS-1$
showPopup32(result);
}
catch (ClassNotFoundException e)
{
showPopup31(result);
}
}
private void showPopup32(IWatchExpressionResult result)
{
expression = new JSInspectExpression(result);
Window displayPopup = null;
/*
* Compatibility replacement for: new org.eclipse.debug.ui.InspectPopupDialog(getShell(),
* getPopupAnchor(viewer), ACTION_DEFININIITION_ID, expression);
*/
try
{
Class clazz = Class.forName("org.eclipse.debug.ui.InspectPopupDialog"); //$NON-NLS-1$
Constructor constructor = clazz.getConstructor(new Class[] { Shell.class, Point.class, String.class,
IExpression.class });
displayPopup = (Window) constructor.newInstance(new Object[] { getShell(), getPopupAnchor(viewer),
ACTION_DEFININIITION_ID, expression });
}
catch (Exception e)
{
IdeLog.logError(DebugUiPlugin.getDefault(), StringUtils.EMPTY, e);
}
if (displayPopup != null)
{
displayPopup.open();
}
}
private void showPopup31(final IWatchExpressionResult result)
{
final InformationPresenter infoPresenter = new InformationPresenter(new IInformationControlCreator()
{
public IInformationControl createInformationControl(Shell parent)
{
IWorkbenchPage page = DebugUiPlugin.getActivePage();
expression = new JSInspectExpression(result);
IInformationControl control = null;
/*
* Compatibility replacement for: new
* org.eclipse.debug.internal.ui.views.expression.ExpressionInformationControl(page, expression,
* ACTION_DEFININIITION_ID);
*/
try
{
Class clazz = Class
.forName("org.eclipse.debug.internal.ui.views.expression.ExpressionInformationControl"); //$NON-NLS-1$
Constructor constructor = clazz.getConstructor(new Class[] { IWorkbenchPage.class,
IExpression.class, String.class });
control = (IInformationControl) constructor.newInstance(new Object[] { page, expression,
ACTION_DEFININIITION_ID });
}
catch (Exception e)
{
IdeLog.logError(DebugUiPlugin.getDefault(), StringUtils.EMPTY, e);
}
if (control != null)
{
control.addDisposeListener(new DisposeListener()
{
public void widgetDisposed(DisposeEvent e)
{
getInformationPresenter().uninstall();
}
});
}
return control;
}
});
setInformationPresenter(infoPresenter);
DebugUiPlugin.getStandardDisplay().asyncExec(new Runnable()
{
public void run()
{
if (viewer != null)
{
Point p = viewer.getSelectedRange();
IDocument doc = viewer.getDocument();
try
{
String contentType = TextUtilities.getContentType(doc, infoPresenter.getDocumentPartitioning(),
p.x, true);
infoPresenter.setInformationProvider(PopupInspectAction.this, contentType);
infoPresenter.install(viewer);
infoPresenter.showInformation();
}
catch (BadLocationException e)
{
return;
}
finally
{
viewer = null;
}
}
}
});
}
/**
* @see com.aptana.ide.debug.internal.ui.actions.InspectAction#displayResult(org.eclipse.debug.core.model.IWatchExpressionResult)
*/
protected void displayResult(final IWatchExpressionResult result)
{
IWorkbenchPart part = getTargetPart();
viewer = (ITextViewer) part.getAdapter(ITextViewer.class);
if (viewer == null)
{
if (part instanceof IUnifiedEditor)
{
viewer = ((IUnifiedEditor) part).getViewer();
}
}
if (viewer == null)
{
super.displayResult(result);
}
else
{
showPopup(result);
}
}
private IWorkbenchPart getTargetPart()
{
// TODO
return DebugUiPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow().getActivePage().getActivePart();
}
private InformationPresenter getInformationPresenter()
{
return fInformationPresenter;
}
private void setInformationPresenter(InformationPresenter informationPresenter)
{
fInformationPresenter = informationPresenter;
}
/**
* getRegion
*
* @return IRegion
*/
protected IRegion getRegion()
{
Point point = viewer.getSelectedRange();
return new Region(point.x, point.y);
}
private Shell getShell()
{
if (getTargetPart() != null)
{
return getTargetPart().getSite().getShell();
}
return DebugUiPlugin.getActiveWorkbenchShell();
}
/**
* Computes an anchor point for a popup dialog on top of a text viewer.
*
* @param viewer
* @return desired anchor point
*/
private static Point getPopupAnchor(ITextViewer viewer)
{
StyledText textWidget = viewer.getTextWidget();
Point docRange = textWidget.getSelectionRange();
int midOffset = docRange.x + (docRange.y / 2);
Point point = textWidget.getLocationAtOffset(midOffset);
point = textWidget.toDisplay(point);
GC gc = new GC(textWidget);
gc.setFont(textWidget.getFont());
int height = gc.getFontMetrics().getHeight();
gc.dispose();
point.y += height;
return point;
}
}