/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.openapi.options;
import com.intellij.openapi.util.Disposer;
import com.intellij.openapi.util.Factory;
import com.intellij.util.Alarm;
import org.jetbrains.annotations.NotNull;
import javax.swing.*;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
public abstract class CompositeSettingsEditor<Settings> extends SettingsEditor<Settings> {
private Collection<SettingsEditor<Settings>> myEditors;
private SettingsEditorListener<Settings> myChildSettingsListener;
private SynchronizationConroller mySyncConroller;
private boolean myIsDisposed = false;
public CompositeSettingsEditor() {}
public CompositeSettingsEditor(Factory<Settings> factory) {
super(factory);
if (factory != null) {
mySyncConroller = new SynchronizationConroller();
}
}
public abstract CompositeSettingsBuilder<Settings> getBuilder();
@Override
public void resetEditorFrom(Settings settings) {
for (final SettingsEditor<Settings> myEditor : myEditors) {
myEditor.resetEditorFrom(settings);
}
}
@Override
public void applyEditorTo(Settings settings) throws ConfigurationException {
for (final SettingsEditor<Settings> myEditor : myEditors) {
myEditor.applyTo(settings);
}
}
@Override
public void uninstallWatcher() {
for (SettingsEditor<Settings> editor : myEditors) {
editor.removeSettingsEditorListener(myChildSettingsListener);
}
}
@Override
public void installWatcher(JComponent c) {
myChildSettingsListener = new SettingsEditorListener<Settings>() {
@Override
public void stateChanged(SettingsEditor<Settings> editor) {
fireEditorStateChanged();
if (mySyncConroller != null) mySyncConroller.handleStateChange(editor);
}
};
for (SettingsEditor<Settings> editor : myEditors) {
editor.addSettingsEditorListener(myChildSettingsListener);
}
}
@Override
@NotNull
protected final JComponent createEditor() {
CompositeSettingsBuilder<Settings> builder = getBuilder();
myEditors = builder.getEditors();
for (final SettingsEditor<Settings> editor : myEditors) {
Disposer.register(this, editor);
editor.setOwner(this);
}
return builder.createCompoundEditor(this);
}
@Override
public void disposeEditor() {
Disposer.dispose(this);
myIsDisposed = true;
}
private class SynchronizationConroller {
private final Set<SettingsEditor> myChangedEditors = new HashSet<SettingsEditor>();
private final Alarm mySyncAlarm = new Alarm(Alarm.ThreadToUse.SWING_THREAD);
private boolean myIsInSync = false;
public void handleStateChange(SettingsEditor editor) {
if (myIsInSync || myIsDisposed) return;
myChangedEditors.add(editor);
mySyncAlarm.cancelAllRequests();
mySyncAlarm.addRequest(new Runnable() {
@Override
public void run() {
if (!myIsDisposed) {
sync();
}
}
}, 300);
}
public void sync() {
myIsInSync = true;
try {
Settings snapshot = getSnapshot();
for (SettingsEditor<Settings> editor : myEditors) {
if (!myChangedEditors.contains(editor)) {
editor.resetFrom(snapshot);
}
}
}
catch (ConfigurationException e) {
}
finally{
myChangedEditors.clear();
myIsInSync = false;
}
}
}
}