scummvm/backends/platform/sdl/macosx/appmenu_osx.mm
Thierry Crozat 36908e0fcd OSX: Prefer the manual bundled with the application
The User Manual Help menu item now opens the pdf bundled with the
application if present, and only opens the website otherwise.
The bundled documentation is preferred as:
 - This will work even with no internet access
 - This is future proof and will still work in 10 years when the
   website URL might have changed or the website may be down.
 - This ensure we get the doc that corresponds to the version of
   ScummVM being used.
2021-08-28 20:14:57 +01:00

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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
// Disable symbol overrides so that we can use system headers.
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "backends/platform/sdl/macosx/appmenu_osx.h"
#include "common/translation.h"
#include "common/ustr.h"
#include "backends/platform/sdl/macosx/macosx-compat.h"
#include <Cocoa/Cocoa.h>
#include <AppKit/NSWorkspace.h>
#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_12
#define NSEventModifierFlagCommand NSCommandKeyMask
#define NSEventModifierFlagOption NSAlternateKeyMask
#endif
#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_10
#define NSEventModifierFlags NSUInteger
#endif
#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5
typedef unsigned long NSUInteger;
// Those are not defined in the 10.4 SDK, but they are defined when targeting
// Mac OS X 10.4 or above in the 10.5 SDK. So hopefully that means it works with 10.4 as well.
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
enum {
NSUTF32StringEncoding = 0x8c000100,
NSUTF32BigEndianStringEncoding = 0x98000100,
NSUTF32LittleEndianStringEncoding = 0x9c000100
};
#endif
#endif
// Apple added setAppleMenu in 10.5 and removed it in 10.6.
// But as the method still exists we declare it ourselves here.
// Yes, this works :)
@interface NSApplication(MissingFunction)
- (void)setAppleMenu:(NSMenu *)menu;
@end
// However maybe we should conditionally use it depending on the system on which we run ScummVM (and not
// the one on which we compile) to only do it on OS X 10.5.
// Here is the relevant bit from the release notes for 10.6:
// In Leopard and earlier, apps that tried to construct a menu bar without a nib would get an undesirable
// stubby application menu that could not be removed. To work around this problem on Leopard, you can call
// the undocumented setAppleMenu: method and pass it the application menu, like so:
// [NSApp setAppleMenu:[[[NSApp mainMenu] itemAtIndex:0] submenu]];
// In SnowLeopard, this workaround is unnecessary and should not be used. Under SnowLeopard, the first menu
// is always identified as the application menu.
static void openFromBundle(NSString *file) {
NSString *path = [[NSBundle mainBundle] pathForResource:file ofType:@"rtf"];
if (!path) {
path = [[NSBundle mainBundle] pathForResource:file ofType:@"html"];
if (!path) {
path = [[NSBundle mainBundle] pathForResource:file ofType:@""];
if (!path)
path = [[NSBundle mainBundle] pathForResource:file ofType:@"md"];
}
}
if (path) {
// RTF and HTML files are widely recognized and we can rely on the default
// file association working for those. For the other ones this might not be
// the case so we explicitly indicate they should be open with TextEdit.
if ([path hasSuffix:@".html"] || [path hasSuffix:@".rtf"])
[[NSWorkspace sharedWorkspace] openFile:path];
else
[[NSWorkspace sharedWorkspace] openFile:path withApplication:@"TextEdit"];
}
}
@interface ScummVMMenuHandler : NSObject {
}
- (void) openReadme;
- (void) openLicenseGPL;
- (void) openLicenseLGPL;
- (void) openLicenseFreefont;
- (void) openLicenseOFL;
- (void) openLicenseBSD;
- (void) openNews;
- (void) openUserManual;
- (void) openCredits;
@end
@implementation ScummVMMenuHandler : NSObject
- (void)openReadme {
openFromBundle(@"README");
}
- (void)openLicenseGPL {
openFromBundle(@"COPYING");
}
- (void)openLicenseLGPL {
openFromBundle(@"COPYING-LGPL");
}
- (void)openLicenseFreefont {
openFromBundle(@"COPYING-FREEFONT");
}
- (void)openLicenseOFL {
openFromBundle(@"COPYING-OFL");
}
- (void)openLicenseBSD {
openFromBundle(@"COPYING-BSD");
}
- (void)openNews {
openFromBundle(@"NEWS");
}
- (void)openUserManual {
// If present locally in the bundle, open that file.
if ([[NSFileManager defaultManager] respondsToSelector:@selector(contentsOfDirectoryAtPath:error:)]) {
NSString *bundlePath = [[NSBundle mainBundle] resourcePath];
NSArray *dirContents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:bundlePath error:nil];
NSEnumerator *dirEnum = [dirContents objectEnumerator];
NSString *file;
while (file = [dirEnum nextObject]) {
if ([file hasPrefix:@"ScummVM Manual"] && [file hasSuffix:@".pdf"]) {
[[NSWorkspace sharedWorkspace] openFile:[bundlePath stringByAppendingPathComponent:file]];
return;
}
}
}
// Otherwise try to access the only version.
[[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:@"https://docs.scummvm.org/"]];
}
- (void)openCredits {
openFromBundle(@"AUTHORS");
}
@end
NSString *constructNSStringFromU32String(const Common::U32String &rawU32String) {
#ifdef SCUMM_LITTLE_ENDIAN
NSStringEncoding stringEncoding = NSUTF32LittleEndianStringEncoding;
#else
NSStringEncoding stringEncoding = NSUTF32BigEndianStringEncoding;
#endif
return [[NSString alloc] initWithBytes:rawU32String.c_str() length:4*rawU32String.size() encoding: stringEncoding];
}
static NSMenu *addMenu(const Common::U32String &title, NSString *key, SEL setAs) {
if (setAs && ![NSApp respondsToSelector:setAs]) {
return nil;
}
NSString *str = constructNSStringFromU32String(title);
NSMenu *menu = [[NSMenu alloc] initWithTitle:str];
NSMenuItem *menuItem = [[NSMenuItem alloc] initWithTitle:str action:nil keyEquivalent:key];
[menuItem setSubmenu:menu];
[[NSApp mainMenu] addItem:menuItem];
if (setAs) {
[NSApp performSelector:setAs withObject:menu];
}
[str release];
[menuItem release];
return menu;
}
static void addMenuItem(const Common::U32String &title, id target, SEL selector, NSString *key, NSMenu *parent, NSEventModifierFlags flags = 0) {
NSString *nsString = constructNSStringFromU32String(title);
NSMenuItem *menuItem = [[NSMenuItem alloc]
initWithTitle:nsString
action:selector
keyEquivalent:key];
if (target) {
[menuItem setTarget:target];
}
if (flags) {
[menuItem setKeyEquivalentModifierMask:flags];
}
[parent addItem:menuItem];
[nsString release];
}
static ScummVMMenuHandler *delegate = nullptr;
void releaseMenu() {
[delegate release];
delegate = nullptr;
}
void replaceApplicationMenuItems() {
// We cannot use [[NSApp mainMenu] removeAllItems] as removeAllItems was added in OS X 10.6
// So remove the SDL generated menus one by one instead.
while ([[NSApp mainMenu] numberOfItems] > 0) {
[[NSApp mainMenu] removeItemAtIndex:0];
}
NSMenu *appleMenu = addMenu(Common::U32String("ScummVM"), @"", @selector(setAppleMenu:));
if (appleMenu) {
addMenuItem(_("About ScummVM"), nil, @selector(orderFrontStandardAboutPanel:), @"", appleMenu);
[appleMenu addItem:[NSMenuItem separatorItem]];
addMenuItem(_("Hide ScummVM"), nil, @selector(hide:), @"h", appleMenu);
addMenuItem(_("Hide Others"), nil, @selector(hideOtherApplications:), @"h", appleMenu, (NSEventModifierFlagOption|NSEventModifierFlagCommand));
addMenuItem(_("Show All"), nil, @selector(unhideAllApplications:), @"", appleMenu);
[appleMenu addItem:[NSMenuItem separatorItem]];
addMenuItem(_("Quit ScummVM"), nil, @selector(terminate:), @"q", appleMenu);
}
NSMenu *windowMenu = addMenu(_("Window"), @"", @selector(setWindowsMenu:));
if (windowMenu) {
addMenuItem(_("Minimize"), nil, @selector(performMiniaturize:), @"m", windowMenu);
}
NSMenu *helpMenu = addMenu(_("Help"), @"", @selector(setHelpMenu:));
if (helpMenu) {
if (!delegate) {
delegate = [[ScummVMMenuHandler alloc] init];
}
addMenuItem(_("User Manual"), delegate, @selector(openUserManual), @"", helpMenu);
[helpMenu addItem:[NSMenuItem separatorItem]];
addMenuItem(_("General Information"), delegate, @selector(openReadme), @"", helpMenu);
addMenuItem(_("What's New in ScummVM"), delegate, @selector(openNews), @"", helpMenu);
[helpMenu addItem:[NSMenuItem separatorItem]];
addMenuItem(_("Credits"), delegate, @selector(openCredits), @"", helpMenu);
addMenuItem(_("GPL License"), delegate, @selector(openLicenseGPL), @"", helpMenu);
addMenuItem(_("LGPL License"), delegate, @selector(openLicenseLGPL), @"", helpMenu);
addMenuItem(_("Freefont License"), delegate, @selector(openLicenseFreefont), @"", helpMenu);
addMenuItem(_("OFL License"), delegate, @selector(openLicenseOFL), @"", helpMenu);
addMenuItem(_("BSD License"), delegate, @selector(openLicenseBSD), @"", helpMenu);
}
[appleMenu release];
[windowMenu release];
[helpMenu release];
}