/*******************************************************************************
* Copyright © 2008, 2013 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*
*******************************************************************************/
package org.eclipse.edt.debug.javascript.internal.model;
import org.eclipse.core.resources.IMarker;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IBreakpoint;
import org.eclipse.debug.core.model.IStackFrame;
import org.eclipse.debug.core.model.IThread;
import org.eclipse.edt.debug.core.IEGLStackFrame;
import org.eclipse.edt.debug.core.IEGLThread;
import org.eclipse.edt.debug.core.breakpoints.EGLBreakpoint;
import org.eclipse.osgi.util.NLS;
public class RUIThread extends RUIDebugElement implements IEGLThread
{
/**
* Breakpoints this thread is suspended at or <code>null</code> if none.
*/
private IBreakpoint[] fBreakpoints;
/**
* Whether this thread is stepping
*/
private boolean fStepping = false;
/**
* Constructs a new thread for the given target
*
* @param target VM
*/
public RUIThread( RUIDebugTarget target )
{
super( target );
}
@Override
public Object getAdapter( Class adapter )
{
if ( adapter == RUIThread.class || adapter == IThread.class || adapter == IEGLThread.class )
{
return this;
}
if ( adapter == RUIStackFrame.class || adapter == IStackFrame.class || adapter == IEGLStackFrame.class )
{
return getTopStackFrame();
}
return super.getAdapter( adapter );
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IThread#getStackFrames()
*/
@Override
public IStackFrame[] getStackFrames()
{
if ( isSuspended() )
{
return ((RUIDebugTarget)getDebugTarget()).getStackFrames();
}
else
{
return new IStackFrame[ 0 ];
}
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IThread#hasStackFrames()
*/
@Override
public boolean hasStackFrames() throws DebugException
{
return !isTerminated() && isSuspended();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IThread#getPriority()
*/
@Override
public int getPriority() throws DebugException
{
return 0;
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IThread#getTopStackFrame()
*/
@Override
public IStackFrame getTopStackFrame()
{
IStackFrame[] frames = getStackFrames();
if ( frames.length > 0 )
{
return frames[ 0 ];
}
return null;
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IThread#getName()
*/
@Override
public String getName() throws DebugException
{
String threadName = RUIDebugMessages.rui_thread_thread_name;
String label = null;
if ( isTerminated() )
{
label = NLS.bind( RUIDebugMessages.rui_thread_label_terminated, threadName );
}
else if ( isStepping() )
{
label = NLS.bind( RUIDebugMessages.rui_thread_label_stepping, threadName );
}
else if ( isSuspended() )
{
IBreakpoint breakpoint = getCurrentUserBreakpoint();
if ( breakpoint == null )
{
label = NLS.bind( RUIDebugMessages.rui_thread_label_suspended, threadName );
}
else
{
IMarker marker = breakpoint.getMarker();
int line = marker.getAttribute( IMarker.LINE_NUMBER, -1 );
String[] args = new String[ 3 ];
args[ 0 ] = threadName;
args[ 1 ] = Integer.toString( line );
args[ 2 ] = marker.getResource().getName();
label = NLS.bind( RUIDebugMessages.rui_thread_label_suspendedAtBreakpoint, args );
}
}
else
{
label = NLS.bind( RUIDebugMessages.rui_thread_label_running, threadName );
}
return label;
}
/**
* Get the current user breakpoint.
*
* @return An EGLBreakpoint.
*/
protected EGLBreakpoint getCurrentUserBreakpoint()
{
if ( fBreakpoints != null && fBreakpoints.length != 0 )
{
return (EGLBreakpoint)fBreakpoints[ 0 ];
}
return null;
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IThread#getBreakpoints()
*/
@Override
public IBreakpoint[] getBreakpoints()
{
if ( fBreakpoints == null )
{
return new IBreakpoint[ 0 ];
}
return fBreakpoints;
}
/**
* Sets the breakpoints this thread is suspended at, or <code>null</code> if none.
*
* @param breakpoints the breakpoints this thread is suspended at, or <code>null</code> if none
*/
public void setBreakpoints( IBreakpoint[] breakpoints )
{
fBreakpoints = breakpoints;
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.ISuspendResume#canResume()
*/
@Override
public boolean canResume()
{
return getDebugTarget().canResume();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.ISuspendResume#canSuspend()
*/
@Override
public boolean canSuspend()
{
return getDebugTarget().canSuspend();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.ISuspendResume#isSuspended()
*/
@Override
public boolean isSuspended()
{
return getDebugTarget().isSuspended();
}
/*
* @Override (non-Javadoc)
* @see org.eclipse.debug.core.model.ISuspendResume#resume()
*/
@Override
public void resume() throws DebugException
{
fBreakpoints = null;
getDebugTarget().resume();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.ISuspendResume#suspend()
*/
@Override
public void suspend() throws DebugException
{
getDebugTarget().suspend();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IStep#canStepInto()
*/
@Override
public boolean canStepInto()
{
return isSuspended() && !((RUIDebugTarget)getDebugTarget()).isTerminating();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IStep#canStepOver()
*/
@Override
public boolean canStepOver()
{
return isSuspended() && !((RUIDebugTarget)getDebugTarget()).isTerminating();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IStep#canStepReturn()
*/
@Override
public boolean canStepReturn()
{
return isSuspended() && !((RUIDebugTarget)getDebugTarget()).isTerminating();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IStep#isStepping()
*/
@Override
public boolean isStepping()
{
return fStepping;
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IStep#stepInto()
*/
@Override
public void stepInto() throws DebugException
{
fBreakpoints = null;
((RUIDebugTarget)getDebugTarget()).stepIn();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IStep#stepOver()
*/
@Override
public void stepOver() throws DebugException
{
stepOver( (RUIStackFrame)getTopStackFrame() );
}
protected void stepOver( RUIStackFrame frame )
{
fBreakpoints = null;
((RUIDebugTarget)getDebugTarget()).stepOver( frame );
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.IStep#stepReturn()
*/
@Override
public void stepReturn() throws DebugException
{
stepReturn( (RUIStackFrame)getTopStackFrame() );
}
protected void stepReturn( RUIStackFrame frame )
{
fBreakpoints = null;
((RUIDebugTarget)getDebugTarget()).stepOut( frame );
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.ITerminate#canTerminate()
*/
@Override
public boolean canTerminate()
{
return getDebugTarget().canTerminate();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.ITerminate#isTerminated()
*/
@Override
public boolean isTerminated()
{
return getDebugTarget().isTerminated();
}
/*
* (non-Javadoc)
* @see org.eclipse.debug.core.model.ITerminate#terminate()
*/
@Override
public void terminate() throws DebugException
{
getDebugTarget().terminate();
}
/**
* Sets whether this thread is stepping
*
* @param stepping whether stepping
*/
protected void setStepping( boolean stepping )
{
fStepping = stepping;
}
}