/*
* Copyright 2000-2007 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.ui;
import com.intellij.openapi.Disposable;
import com.intellij.openapi.actionSystem.*;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.keymap.Keymap;
import com.intellij.openapi.keymap.KeymapManager;
import com.intellij.openapi.keymap.KeymapManagerListener;
import com.intellij.util.ui.update.Activatable;
import com.intellij.util.ui.update.UiNotifyConnector;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
public final class ShadowAction implements Disposable {
private AnAction myAction;
private AnAction myCopyFromAction;
private JComponent myComponent;
private KeymapManagerListener myKeymapManagerListener;
private ShortcutSet myShortcutSet;
private String myActionId;
private Keymap.Listener myKeymapListener;
private Keymap myKeymap;
private Presentation myPresentation;
private UiNotifyConnector myUiNotify;
public ShadowAction(AnAction action, AnAction copyFromAction, JComponent component, Presentation presentation) {
this(action, copyFromAction, component);
myPresentation = presentation;
}
public ShadowAction(AnAction action, AnAction copyFromAction, JComponent component) {
myAction = action;
myCopyFromAction = copyFromAction;
myComponent = component;
myActionId = ActionManager.getInstance().getId(myCopyFromAction);
myKeymapListener = new Keymap.Listener() {
public void onShortcutChanged(final String actionId) {
if (myActionId == null || actionId.equals(myActionId)) {
rebound();
}
}
};
myKeymapManagerListener = new KeymapManagerListener() {
public void activeKeymapChanged(final Keymap keymap) {
rebound();
}
};
myUiNotify = new UiNotifyConnector(myComponent, new Activatable() {
public void showNotify() {
_connect();
}
public void hideNotify() {
disconnect();
}
});
}
private void _connect() {
disconnect();
final KeymapManager mgr = getKeymapManager();
if (mgr == null) return;
mgr.addKeymapManagerListener(myKeymapManagerListener);
rebound();
}
private void disconnect() {
final KeymapManager mgr = getKeymapManager();
if (mgr == null) return;
mgr.removeKeymapManagerListener(myKeymapManagerListener);
if (myKeymap != null) {
myKeymap.removeShortcutChangeListener(myKeymapListener);
}
}
private void rebound() {
final KeymapManager mgr = getKeymapManager();
if (mgr == null) return;
myActionId = ActionManager.getInstance().getId(myCopyFromAction);
if (myPresentation == null) {
myAction.copyFrom(myCopyFromAction);
} else {
myAction.getTemplatePresentation().copyFrom(myPresentation);
myAction.copyShortcutFrom(myCopyFromAction);
}
unregisterAll();
myKeymap = mgr.getActiveKeymap();
myKeymap.addShortcutChangeListener(myKeymapListener);
if (myActionId == null) return;
final Shortcut[] shortcuts = myKeymap.getShortcuts(myActionId);
myShortcutSet = new CustomShortcutSet(shortcuts);
myAction.registerCustomShortcutSet(myShortcutSet, myComponent);
}
private void unregisterAll() {
if (myShortcutSet != null) {
myAction.unregisterCustomShortcutSet(myComponent);
}
if (myKeymap != null) {
myKeymap.removeShortcutChangeListener(myKeymapListener);
}
}
public void dispose() {
unregisterAll();
myUiNotify.dispose();
disconnect();
}
private static @Nullable
KeymapManager getKeymapManager() {
if (ApplicationManager.getApplication().isDisposed()) return null;
return KeymapManager.getInstance();
}
}