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/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.ui;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.ISafeRunnable;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.core.runtime.SafeRunner;
import org.eclipse.debug.core.model.IBreakpoint;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.internal.ui.breakpoints.provisional.OtherBreakpointCategory;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
/**
* Common function for breakpoint organizer delegates.
* <p>
* Clients implementing <code>IBreakpointOrganizerDelegate</code> must subclass this class.
* </p>
* @since 3.1
*/
public abstract class AbstractBreakpointOrganizerDelegate implements IBreakpointOrganizerDelegate {
// property change listeners
private ListenerList<IPropertyChangeListener> fListeners = new ListenerList<>();
@Override
public void addBreakpoint(IBreakpoint breakpoint, IAdaptable category) {
// do noting, not supported by default
}
@Override
public void addPropertyChangeListener(IPropertyChangeListener listener) {
fListeners.add(listener);
}
/*
* Subclasses that override should return super.canAdd(...) when they are not
* able to add the breakpoint.
*/
@Override
public boolean canAdd(IBreakpoint breakpoint, IAdaptable category) {
return category instanceof OtherBreakpointCategory;
}
/*
* Subclasses that override should return super.canRemove(...) when they are not
* able to remove the breakpoint.
*/
@Override
public boolean canRemove(IBreakpoint breakpoint, IAdaptable category) {
return category instanceof OtherBreakpointCategory;
}
@Override
public void dispose() {
fListeners = new ListenerList<>();
}
@Override
public void removeBreakpoint(IBreakpoint breakpoint, IAdaptable category) {
// do nothing, not supported by default
}
@Override
public void removePropertyChangeListener(IPropertyChangeListener listener) {
fListeners.remove(listener);
}
/**
* Fires a property change notification for the given category.
*
* @param category category that has changed
*/
protected void fireCategoryChanged(IAdaptable category) {
if (fListeners.isEmpty()) {
return;
}
final PropertyChangeEvent event = new PropertyChangeEvent(this, P_CATEGORY_CHANGED, category, null);
for (IPropertyChangeListener iPropertyChangeListener : fListeners) {
final IPropertyChangeListener listener = iPropertyChangeListener;
ISafeRunnable runnable = new ISafeRunnable() {
@Override
public void handleException(Throwable exception) {
DebugUIPlugin.log(exception);
}
@Override
public void run() throws Exception {
listener.propertyChange(event);
}
};
SafeRunner.run(runnable);
}
}
@Override
public IAdaptable[] getCategories() {
return null;
}
}
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