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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Brock Janiczak - bug 57999
*******************************************************************************/
package org.eclipse.debug.internal.ui.views.breakpoints;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.resources.IMarkerDelta;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.IBreakpointsListener;
import org.eclipse.debug.core.model.IBreakpoint;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.internal.ui.views.DebugUIViewsMessages;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.activities.ActivityManagerEvent;
import org.eclipse.ui.activities.IActivityManagerListener;
import org.eclipse.ui.activities.IWorkbenchActivitySupport;
/**
* Handles breakpoint events and activity manager events (which can affect filtering),
* updating the breakpoints view and viewer.
*/
public class BreakpointsViewEventHandler implements IBreakpointsListener, IActivityManagerListener {
private BreakpointsView fView;
/**
* Constructs an event handler for the breakpoints view.
*/
public BreakpointsViewEventHandler(BreakpointsView view) {
fView= view;
DebugPlugin.getDefault().getBreakpointManager().addBreakpointListener(this);
IWorkbenchActivitySupport activitySupport = PlatformUI.getWorkbench().getActivitySupport();
if (activitySupport != null) {
activitySupport.getActivityManager().addActivityManagerListener(this);
}
}
/**
* When this event handler is disposed, remove it as a listener.
*/
public void dispose() {
DebugPlugin.getDefault().getBreakpointManager().removeBreakpointListener(this);
IWorkbenchActivitySupport activitySupport = PlatformUI.getWorkbench().getActivitySupport();
if (activitySupport != null) {
activitySupport.getActivityManager().removeActivityManagerListener(this);
}
}
/**
* @see IBreakpointsListener#breakpointsAdded(IBreakpoint[])
*/
public void breakpointsAdded(final IBreakpoint[] breakpoints) {
if (fView.isAvailable() && fView.isVisible()) {
fView.asyncExec(new Runnable() {
public void run() {
if (fView.isAvailable()) {
CheckboxTableViewer viewer = (CheckboxTableViewer)fView.getViewer();
MultiStatus status= new MultiStatus(DebugUIPlugin.getUniqueIdentifier(), IStatus.ERROR, DebugUIViewsMessages.getString("BreakpointsViewEventHandler.4"), null); //$NON-NLS-1$
for (int i = 0; i < breakpoints.length; i++) {
IBreakpoint breakpoint = breakpoints[i];
// check if the breakpoint is still registered at this time
if (!DebugPlugin.getDefault().getBreakpointManager().isRegistered(breakpoint)) {
continue;
}
viewer.add(breakpoint);
try {
boolean enabled= breakpoint.isEnabled();
if (viewer.getChecked(breakpoint) != enabled) {
viewer.setChecked(breakpoint, breakpoint.isEnabled());
}
if (!DebugPlugin.getDefault().getBreakpointManager().isEnabled()) {
fView.updateViewerBackground();
}
} catch (CoreException e) {
status.add(DebugUIPlugin.newErrorStatus(DebugUIViewsMessages.getString("BreakpointsViewEventHandler.5"),e)); //$NON-NLS-1$
DebugUIPlugin.log(e);
}
}
if (!status.isOK()) {
DebugUIPlugin.errorDialog(DebugUIPlugin.getShell(), DebugUIViewsMessages.getString("BreakpointsViewEventHandler.1"), DebugUIViewsMessages.getString("BreakpointsViewEventHandler.2"), status); //$NON-NLS-1$ //$NON-NLS-2$
}
fView.updateObjects();
}
}
});
}
}
/**
* @see IBreakpointsListener#breakpointsRemoved(IBreakpoint[], IMarkerDelta[])
*/
public void breakpointsRemoved(final IBreakpoint[] breakpoints, IMarkerDelta[] deltas) {
if (fView.isAvailable() && fView.isVisible()) {
fView.asyncExec(new Runnable() {
public void run() {
if (fView.isAvailable()) {
TableViewer viewer= (TableViewer)fView.getViewer();
int[] indices= viewer.getTable().getSelectionIndices();
viewer.getControl().setRedraw(false);
viewer.remove(breakpoints);
viewer.getControl().setRedraw(true);
if (viewer.getSelection().isEmpty()) {
if (indices.length > 0) {
int index= indices[0];
viewer.getTable().select(Math.min(index, viewer.getTable().getItemCount() - 1));
}
//fire the selection changed as does not occur when
//setting selection on the swt widget
viewer.setSelection(viewer.getSelection());
}
fView.updateObjects();
}
}
});
}
}
/**
* @see IBreakpointsListener#breakpointsChanged(IBreakpoint[], IMarkerDelta[])
*/
public void breakpointsChanged(final IBreakpoint[] breakpoints, IMarkerDelta[] deltas) {
if (fView.isAvailable() & fView.isVisible()) {
fView.asyncExec(new Runnable() {
public void run() {
if (fView.isAvailable()) {
CheckboxTableViewer viewer = (CheckboxTableViewer)fView.getViewer();
viewer.getControl().setRedraw(false);
for (int i = 0; i < breakpoints.length; i++) {
IBreakpoint breakpoint = breakpoints[i];
IMarker marker= breakpoint.getMarker();
if (marker != null && marker.exists()) {
// only refresh if still exists
try {
boolean enabled= breakpoint.isEnabled();
if (viewer.getChecked(breakpoint) != enabled) {
viewer.setChecked(breakpoint, breakpoint.isEnabled());
}
} catch (CoreException e) {
DebugUIPlugin.errorDialog(DebugUIPlugin.getShell(), DebugUIViewsMessages.getString("BreakpointsViewEventHandler.1"), DebugUIViewsMessages.getString("BreakpointsViewEventHandler.2"), e); //$NON-NLS-1$ //$NON-NLS-2$
DebugUIPlugin.log(e);
}
viewer.refresh(breakpoint);
}
}
viewer.getControl().setRedraw(true);
fView.updateObjects();
}
}
});
}
}
/**
* When new activities are added or enabled, refresh the view contents to add/remove
* breakpoints related to the affected activities.
*/
public void activityManagerChanged(final ActivityManagerEvent activityManagerEvent) {
if (fView.isAvailable() & fView.isVisible() && activityManagerEvent.haveEnabledActivityIdsChanged()) {
fView.asyncExec(new Runnable() {
public void run() {
fView.getViewer().refresh();
fView.initializeCheckedState();
}
});
}
}
}
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