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/*******************************************************************************
* Copyright (c) 2000, 2013 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.compare.internal;
import java.util.HashMap;
import java.util.Map;
import java.util.ResourceBundle;
import org.eclipse.compare.CompareConfiguration;
import org.eclipse.compare.ICompareFilter;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
/**
* Toggles the activation of a compare filter
*/
public class ChangeCompareFilterPropertyAction extends Action implements
IPropertyChangeListener, DisposeListener {
public static final String COMPARE_FILTERS = "COMPARE_FILTERS"; //$NON-NLS-1$
public static final String COMPARE_FILTER_ACTIONS = "COMPARE_FILTER_ACTIONS"; //$NON-NLS-1$
public static final String COMPARE_FILTERS_INITIALIZING = "COMPARE_FILTERS_INITIALIZING"; //$NON-NLS-1$
private CompareConfiguration fCompareConfiguration;
private ResourceBundle fBundle;
private String fPrefix = "filter."; //$NON-NLS-1$
private CompareFilterDescriptor fCompareFilterDescriptor;
private ICompareFilter fCompareFilter;
public ChangeCompareFilterPropertyAction(
CompareFilterDescriptor compareFilterDescriptor,
CompareConfiguration compareConfiguration) {
this.fBundle = compareFilterDescriptor.getResourceBundle();
this.fCompareFilterDescriptor = compareFilterDescriptor;
this.fCompareFilter = compareFilterDescriptor.createCompareFilter();
Utilities.initAction(this, fBundle, fPrefix);
// Utilities only loads images from compare plugin
setImageDescriptor(compareFilterDescriptor.getImageDescriptor());
setId(compareFilterDescriptor.getFilterId());
setActionDefinitionId(compareFilterDescriptor.getDefinitionId());
setCompareConfiguration(compareConfiguration);
if (fCompareFilter.isEnabledInitially()) {
setChecked(true);
setProperty(true);
}
}
@SuppressWarnings("unchecked")
void setProperty(boolean state) {
if (fCompareConfiguration != null) {
Map<String, ICompareFilter> filters = new HashMap<>();
if (fCompareConfiguration.getProperty(COMPARE_FILTERS) != null) {
filters.putAll(
(Map<String, ICompareFilter>) fCompareConfiguration
.getProperty(COMPARE_FILTERS));
}
if (state) {
filters.put(fCompareFilterDescriptor.getFilterId(),
fCompareFilter);
} else {
filters.remove(fCompareFilterDescriptor.getFilterId());
}
fCompareConfiguration.setProperty(COMPARE_FILTERS, filters);
}
}
@SuppressWarnings("unchecked")
boolean getProperty() {
Map<String, ICompareFilter> filters = (Map<String, ICompareFilter>) fCompareConfiguration
.getProperty(COMPARE_FILTERS);
if (filters == null) {
filters = new HashMap<>();
}
return filters.containsKey(fCompareFilterDescriptor.getFilterId());
}
@Override
public void run() {
boolean b = !getProperty();
setChecked(b);
setProperty(b);
}
@Override
public void setChecked(boolean state) {
super.setChecked(state);
Utilities.initToggleAction(this, fBundle, fPrefix, state);
}
public void setCompareConfiguration(CompareConfiguration cc) {
if (fCompareConfiguration != null)
fCompareConfiguration.removePropertyChangeListener(this);
fCompareConfiguration = cc;
if (fCompareConfiguration != null)
fCompareConfiguration.addPropertyChangeListener(this);
setChecked(getProperty());
}
@SuppressWarnings("unchecked")
@Override
public void propertyChange(PropertyChangeEvent event) {
if (event.getProperty().equals(COMPARE_FILTERS)
&& event.getNewValue() instanceof Map) {
setChecked(((Map<String, ICompareFilter>) event.getNewValue())
.containsKey(fCompareFilterDescriptor.getFilterId()));
}
}
public void dispose() {
if (fCompareConfiguration != null)
fCompareConfiguration.removePropertyChangeListener(this);
}
@Override
public void widgetDisposed(DisposeEvent e) {
dispose();
}
public String getFilterId() {
return fCompareFilterDescriptor.getFilterId();
}
public void setInput(Object input, Object ancestor, Object left,
Object right) {
fCompareFilter.setInput(input, ancestor, left, right);
}
}
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