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/*
* Copyright (c) 2011, 2013, 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.Frame;
import java.awt.peer.MenuComponentPeer;
import javax.swing.*;
import javax.swing.plaf.MenuBarUI;
import com.apple.laf.ScreenMenuBar;
import sun.lwawt.macosx.CMenuBar;
import com.apple.laf.AquaMenuBarUI;
class _AppMenuBarHandler {
private static final int MENU_ABOUT = 1;
private static final int MENU_PREFS = 2;
private static native void nativeSetMenuState(final int menu, final boolean visible, final boolean enabled);
private static native void nativeSetDefaultMenuBar(final long menuBarPeer);
static final _AppMenuBarHandler instance = new _AppMenuBarHandler();
static _AppMenuBarHandler getInstance() {
return instance;
}
// callback from the native delegate -init function
private static void initMenuStates(final boolean aboutMenuItemVisible, final boolean aboutMenuItemEnabled, final boolean prefsMenuItemVisible, final boolean prefsMenuItemEnabled) {
synchronized (instance) {
instance.aboutMenuItemVisible = aboutMenuItemVisible;
instance.aboutMenuItemEnabled = aboutMenuItemEnabled;
instance.prefsMenuItemVisible = prefsMenuItemVisible;
instance.prefsMenuItemEnabled = prefsMenuItemEnabled;
}
}
_AppMenuBarHandler() { }
boolean aboutMenuItemVisible;
boolean aboutMenuItemEnabled;
boolean prefsMenuItemVisible;
boolean prefsMenuItemEnabled;
boolean prefsMenuItemExplicitlySet;
void setDefaultMenuBar(final JMenuBar menuBar) {
installDefaultMenuBar(menuBar);
// scan the current frames, and see if any are foreground
final Frame[] frames = Frame.getFrames();
for (final Frame frame : frames) {
if (frame.isVisible() && !isFrameMinimized(frame)) {
return;
}
}
// if we have no foreground frames, then we have to "kick" the menubar
final JFrame pingFrame = new JFrame();
pingFrame.getRootPane().putClientProperty("Window.alpha", new Float(0.0f));
pingFrame.setUndecorated(true);
pingFrame.setVisible(true);
pingFrame.toFront();
pingFrame.setVisible(false);
pingFrame.dispose();
}
static boolean isFrameMinimized(final Frame frame) {
return (frame.getExtendedState() & Frame.ICONIFIED) != 0;
}
@SuppressWarnings("deprecation")
static void installDefaultMenuBar(final JMenuBar menuBar) {
if (menuBar == null) {
// intentionally clearing the default menu
nativeSetDefaultMenuBar(0);
return;
}
final MenuBarUI ui = menuBar.getUI();
if (!(ui instanceof AquaMenuBarUI)) {
// Aqua was not installed
throw new IllegalStateException("Application.setDefaultMenuBar() only works with the Aqua Look and Feel");
}
final AquaMenuBarUI aquaUI = (AquaMenuBarUI)ui;
final ScreenMenuBar screenMenuBar = aquaUI.getScreenMenuBar();
if (screenMenuBar == null) {
// Aqua is installed, but we aren't using the screen menu bar
throw new IllegalStateException("Application.setDefaultMenuBar() only works if apple.laf.useScreenMenuBar=true");
}
screenMenuBar.addNotify();
final MenuComponentPeer peer = screenMenuBar.getPeer();
if (!(peer instanceof CMenuBar)) {
// such a thing should not be possible
throw new IllegalStateException("Unable to determine native menu bar from provided JMenuBar");
}
// grab the pointer to the CMenuBar, and retain it in native
nativeSetDefaultMenuBar(((CMenuBar)peer).getModel());
}
void setAboutMenuItemVisible(final boolean present) {
synchronized (this) {
if (aboutMenuItemVisible == present) return;
aboutMenuItemVisible = present;
}
nativeSetMenuState(MENU_ABOUT, aboutMenuItemVisible, aboutMenuItemEnabled);
}
void setPreferencesMenuItemVisible(final boolean present) {
synchronized (this) {
prefsMenuItemExplicitlySet = true;
if (prefsMenuItemVisible == present) return;
prefsMenuItemVisible = present;
}
nativeSetMenuState(MENU_PREFS, prefsMenuItemVisible, prefsMenuItemEnabled);
}
void setAboutMenuItemEnabled(final boolean enable) {
synchronized (this) {
if (aboutMenuItemEnabled == enable) return;
aboutMenuItemEnabled = enable;
}
nativeSetMenuState(MENU_ABOUT, aboutMenuItemVisible, aboutMenuItemEnabled);
}
void setPreferencesMenuItemEnabled(final boolean enable) {
synchronized (this) {
prefsMenuItemExplicitlySet = true;
if (prefsMenuItemEnabled == enable) return;
prefsMenuItemEnabled = enable;
}
nativeSetMenuState(MENU_PREFS, prefsMenuItemVisible, prefsMenuItemEnabled);
}
boolean isAboutMenuItemVisible() {
return aboutMenuItemVisible;
}
boolean isPreferencesMenuItemVisible() {
return prefsMenuItemVisible;
}
boolean isAboutMenuItemEnabled() {
return aboutMenuItemEnabled;
}
boolean isPreferencesMenuItemEnabled() {
return prefsMenuItemEnabled;
}
}
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