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/*******************************************************************************
* Copyright (c) 2010 Tasktop Technologies 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:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.commons.repositories.ui;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.IDiff;
import org.eclipse.core.databinding.property.INativePropertyListener;
import org.eclipse.core.databinding.property.IProperty;
import org.eclipse.core.databinding.property.ISimplePropertyListener;
import org.eclipse.core.databinding.property.NativePropertyListener;
import org.eclipse.core.databinding.property.value.SimpleValueProperty;
import org.eclipse.mylyn.commons.repositories.core.RepositoryLocation;
/**
* @author Steffen Pingel
*/
public class RepositoryLocationValueProperty extends SimpleValueProperty {
private class PrivatePropertyChangeListener extends NativePropertyListener implements PropertyChangeListener {
public PrivatePropertyChangeListener(IProperty property, ISimplePropertyListener listener) {
super(property, listener);
}
@Override
protected void doAddTo(Object source) {
((RepositoryLocation) source).addChangeListener(this);
}
@Override
protected void doRemoveFrom(Object source) {
((RepositoryLocation) source).removeChangeListener(this);
}
public void propertyChange(PropertyChangeEvent evt) {
if (evt.getPropertyName() == null || key.equals(evt.getPropertyName())) {
Object oldValue = evt.getOldValue();
Object newValue = evt.getNewValue();
IDiff diff;
if (evt.getPropertyName() == null || oldValue == null || newValue == null) {
diff = null;
} else {
diff = Diffs.createValueDiff(oldValue, newValue);
}
fireChange(evt.getSource(), diff);
}
}
}
private final String key;
private final String defaultValue;
public RepositoryLocationValueProperty(String key, String defaultValue) {
this.key = key;
this.defaultValue = defaultValue;
}
public Object getValueType() {
return String.class;
}
@Override
protected Object doGetValue(Object source) {
// if ("uri".equals(key)) {
// URI uri = ((RepositoryLocation) source).getUri();
// return (uri != null) ? uri.toString() : uri;
// }
String value = ((RepositoryLocation) source).getProperty(key);
return (value != null) ? value : defaultValue;
}
@Override
protected void doSetValue(Object source, Object value) {
// if ("uri".equals(key)) {
// try {
// ((RepositoryLocation) source).setUri(new URI((String) value));
// } catch (URISyntaxException e) {
// // ignore
// }
// } else {
((RepositoryLocation) source).setProperty(key, (value != null) ? value.toString() : null);
// }
}
@Override
public INativePropertyListener adaptListener(final ISimplePropertyListener listener) {
return new PrivatePropertyChangeListener(this, listener);
}
}
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