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/*
* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.apple.eawt;
import java.awt.Toolkit;
import java.io.File;
import java.util.*;
import com.apple.eawt.AppEvent.*;
interface _OpenAppHandler {
void handleOpenApp();
}
@SuppressWarnings("deprecation")
class _AppEventLegacyHandler implements AboutHandler, PreferencesHandler, _OpenAppHandler, AppReOpenedListener, OpenFilesHandler, PrintFilesHandler, QuitHandler {
final _AppEventHandler parent;
final Vector<ApplicationListener> legacyAppListeners = new Vector<ApplicationListener>();
boolean blockLegacyAPI;
boolean initializedParentDispatchers;
_AppEventLegacyHandler(final _AppEventHandler parent) {
this.parent = parent;
}
void blockLegacyAPI() {
blockLegacyAPI = true;
}
void checkIfLegacyAPIBlocked() {
if (!blockLegacyAPI) return;
throw new IllegalStateException("Cannot add com.apple.eawt.ApplicationListener after installing an app event handler");
}
void addLegacyAppListener(final ApplicationListener listener) {
checkIfLegacyAPIBlocked();
if (!initializedParentDispatchers) {
final _AppMenuBarHandler menuBarHandler = Application.getApplication().menuBarHandler;
final boolean prefsMenuAlreadyExplicitlySet = menuBarHandler.prefsMenuItemExplicitlySet;
parent.aboutDispatcher.setHandler(this);
parent.preferencesDispatcher.setHandler(this);
if (!prefsMenuAlreadyExplicitlySet) {
menuBarHandler.setPreferencesMenuItemVisible(false); // default behavior is not to have a preferences item
}
parent.openAppDispatcher.setHandler(this);
parent.reOpenAppDispatcher.addListener(this);
parent.openFilesDispatcher.setHandler(this);
parent.printFilesDispatcher.setHandler(this);
parent.quitDispatcher.setHandler(this);
initializedParentDispatchers = true;
}
synchronized (legacyAppListeners) {
legacyAppListeners.addElement(listener);
}
}
public void removeLegacyAppListener(final ApplicationListener listener) {
checkIfLegacyAPIBlocked();
synchronized (legacyAppListeners) {
legacyAppListeners.removeElement(listener);
}
}
@Override
public void handleAbout(final AboutEvent e) {
final ApplicationEvent ae = new ApplicationEvent(Toolkit.getDefaultToolkit());
sendEventToEachListenerUntilHandled(ae, new EventDispatcher() {
public void dispatchEvent(final ApplicationListener listener) {
listener.handleAbout(ae);
}
});
if (ae.isHandled()) return;
parent.openCocoaAboutWindow();
}
@Override
public void handlePreferences(final PreferencesEvent e) {
final ApplicationEvent ae = new ApplicationEvent(Toolkit.getDefaultToolkit());
sendEventToEachListenerUntilHandled(ae, new EventDispatcher() {
public void dispatchEvent(final ApplicationListener listener) {
listener.handlePreferences(ae);
}
});
}
@Override
public void handleOpenApp() {
final ApplicationEvent ae = new ApplicationEvent(Toolkit.getDefaultToolkit());
sendEventToEachListenerUntilHandled(ae, new EventDispatcher() {
public void dispatchEvent(final ApplicationListener listener) {
listener.handleOpenApplication(ae);
}
});
}
@Override
public void appReOpened(final AppReOpenedEvent e) {
final ApplicationEvent ae = new ApplicationEvent(Toolkit.getDefaultToolkit());
sendEventToEachListenerUntilHandled(ae, new EventDispatcher() {
public void dispatchEvent(final ApplicationListener listener) {
listener.handleReOpenApplication(ae);
}
});
}
@Override
public void openFiles(final OpenFilesEvent e) {
final List<File> files = e.getFiles();
for (final File file : files) { // legacy ApplicationListeners only understood one file at a time
final ApplicationEvent ae = new ApplicationEvent(Toolkit.getDefaultToolkit(), file.getAbsolutePath());
sendEventToEachListenerUntilHandled(ae, new EventDispatcher() {
public void dispatchEvent(final ApplicationListener listener) {
listener.handleOpenFile(ae);
}
});
}
}
@Override
public void printFiles(PrintFilesEvent e) {
final List<File> files = e.getFiles();
for (final File file : files) { // legacy ApplicationListeners only understood one file at a time
final ApplicationEvent ae = new ApplicationEvent(Toolkit.getDefaultToolkit(), file.getAbsolutePath());
sendEventToEachListenerUntilHandled(ae, new EventDispatcher() {
public void dispatchEvent(final ApplicationListener listener) {
listener.handlePrintFile(ae);
}
});
}
}
@Override
public void handleQuitRequestWith(final QuitEvent e, final QuitResponse response) {
final ApplicationEvent ae = new ApplicationEvent(Toolkit.getDefaultToolkit());
sendEventToEachListenerUntilHandled(ae, new EventDispatcher() {
public void dispatchEvent(final ApplicationListener listener) {
listener.handleQuit(ae);
}
});
if (ae.isHandled()) {
parent.performQuit();
} else {
parent.cancelQuit();
}
}
interface EventDispatcher {
void dispatchEvent(final ApplicationListener listener);
}
// helper that cycles through the loop and aborts if the event is handled, or there are no listeners
void sendEventToEachListenerUntilHandled(final ApplicationEvent event, final EventDispatcher dispatcher) {
synchronized (legacyAppListeners) {
if (legacyAppListeners.size() == 0) return;
final Enumeration<ApplicationListener> e = legacyAppListeners.elements();
while (e.hasMoreElements() && !event.isHandled()) {
dispatcher.dispatchEvent(e.nextElement());
}
}
}
}
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