| /* |
| * Copyright (c) 2011, 2017, 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.Container; |
| import java.awt.Frame; |
| |
| |
| import javax.swing.JFrame; |
| import javax.swing.JLayeredPane; |
| import javax.swing.JMenuBar; |
| import javax.swing.plaf.MenuBarUI; |
| |
| import com.apple.laf.ScreenMenuBar; |
| import sun.awt.AWTAccessor; |
| 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", Float.valueOf(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; |
| } |
| |
| static void installDefaultMenuBar(final JMenuBar menuBar) { |
| if (menuBar == null) { |
| // intentionally clearing the default menu |
| nativeSetDefaultMenuBar(0); |
| return; |
| } |
| |
| Container parent = menuBar.getParent(); |
| if (parent instanceof JLayeredPane) { |
| ((JLayeredPane) parent).remove(menuBar); |
| } |
| |
| MenuBarUI ui = menuBar.getUI(); |
| if (!(ui instanceof AquaMenuBarUI)) { |
| ui = new AquaMenuBarUI(); |
| menuBar.setUI(ui); |
| } |
| |
| 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 Object peer = AWTAccessor.getMenuComponentAccessor().getPeer(screenMenuBar); |
| 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 |
| ((CMenuBar) peer).execute(_AppMenuBarHandler::nativeSetDefaultMenuBar); |
| } |
| |
| 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; |
| } |
| } |