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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
*
* 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.android.menubar.internal;
import com.android.menubar.IMenuBarCallback;
import com.android.menubar.IMenuBarEnhancer;
import org.eclipse.swt.internal.Callback;
import org.eclipse.swt.internal.carbon.HICommand;
import org.eclipse.swt.internal.carbon.OS;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
/**
* Implementation of IMenuBarEnhancer for MacOS Carbon SWT.
*/
public final class MenuBarEnhancerCarbon implements IMenuBarEnhancer {
private static final int kHICommandPreferences = ('p'<<24) + ('r'<<16) + ('e'<<8) + 'f';
private static final int kHICommandAbout = ('a'<<24) + ('b'<<16) + ('o'<<8) + 'u';
private static final int kHICommandServices = ('s'<<24) + ('e'<<16) + ('r'<<8) + 'v';
public MenuBarEnhancerCarbon() {
}
public MenuBarMode getMenuBarMode() {
return MenuBarMode.MAC_OS;
}
public void setupMenu(
String appName,
Display display,
final IMenuBarCallback callbacks) {
// Callback target
Object target = new Object() {
@SuppressWarnings("unused")
int commandProc(int nextHandler, int theEvent, int userData) {
if (OS.GetEventKind(theEvent) == OS.kEventProcessCommand) {
HICommand command = new HICommand();
OS.GetEventParameter(
theEvent,
OS.kEventParamDirectObject,
OS.typeHICommand,
null,
HICommand.sizeof,
null,
command);
switch (command.commandID) {
case kHICommandPreferences:
callbacks.onPreferencesMenuSelected();
return OS.eventNotHandledErr; // TODO wrong
case kHICommandAbout:
callbacks.onAboutMenuSelected();
return OS.eventNotHandledErr;// TODO wrong
default:
break;
}
}
return OS.eventNotHandledErr;
}
};
final Callback commandCallback= new Callback(target, "commandProc", 3); //$NON-NLS-1$
int commandProc = commandCallback.getAddress();
if (commandProc == 0) {
commandCallback.dispose();
log(callbacks, "%1$s: commandProc hook failed.", getClass().getSimpleName()); //$NON-NLS-1$
return; // give up
}
// Install event handler for commands
int[] mask = new int[] {
OS.kEventClassCommand, OS.kEventProcessCommand
};
OS.InstallEventHandler(
OS.GetApplicationEventTarget(), commandProc, mask.length / 2, mask, 0, null);
// create About Eclipse menu command
int[] outMenu = new int[1];
short[] outIndex = new short[1];
if (OS.GetIndMenuItemWithCommandID(
0, kHICommandPreferences, 1, outMenu, outIndex) == OS.noErr && outMenu[0] != 0) {
int menu = outMenu[0];
// add About menu item (which isn't present by default)
String about = "About " + appName;
int l = about.length();
char buffer[] = new char[l];
about.getChars(0, l, buffer, 0);
int str = OS.CFStringCreateWithCharacters(OS.kCFAllocatorDefault, buffer, l);
OS.InsertMenuItemTextWithCFString(menu, str, (short) 0, 0, kHICommandAbout);
OS.CFRelease(str);
// add separator between About & Preferences
OS.InsertMenuItemTextWithCFString(menu, 0, (short) 1, OS.kMenuItemAttrSeparator, 0);
// enable pref menu
OS.EnableMenuCommand(menu, kHICommandPreferences);
// disable services menu
OS.DisableMenuCommand(menu, kHICommandServices);
}
// schedule disposal of callback object
display.disposeExec(
new Runnable() {
public void run() {
commandCallback.dispose();
}
}
);
}
private void log(IMenuBarCallback callbacks, String format, Object... args) {
callbacks.printError(format , args);
}
}
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