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1/*   SDLMain.m - main entry point for our Cocoa-ized SDL app
2       Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
3       Non-NIB-Code & other changes: Max Horn <max@quendi.de>
4
5    Feel free to customize this file to suit your needs
6*/
7
8#import "SDL.h"
9#import "SDLMain.h"
10#import <sys/param.h> /* for MAXPATHLEN */
11#import <unistd.h>
12
13/* For some reaon, Apple removed setAppleMenu from the headers in 10.4,
14 but the method still is there and works. To avoid warnings, we declare
15 it ourselves here. */
16@interface NSApplication(SDL_Missing_Methods)
17- (void)setAppleMenu:(NSMenu *)menu;
18@end
19
20/* Use this flag to determine whether we use SDLMain.nib or not */
21#define		SDL_USE_NIB_FILE	0
22
23/* Use this flag to determine whether we use CPS (docking) or not */
24#define		SDL_USE_CPS		1
25#ifdef SDL_USE_CPS
26/* Portions of CPS.h */
27typedef struct CPSProcessSerNum
28{
29	UInt32		lo;
30	UInt32		hi;
31} CPSProcessSerNum;
32
33extern OSErr	CPSGetCurrentProcess( CPSProcessSerNum *psn);
34extern OSErr 	CPSEnableForegroundOperation( CPSProcessSerNum *psn, UInt32 _arg2, UInt32 _arg3, UInt32 _arg4, UInt32 _arg5);
35extern OSErr	CPSSetFrontProcess( CPSProcessSerNum *psn);
36
37#endif /* SDL_USE_CPS */
38
39static int    gArgc;
40static char  **gArgv;
41static BOOL   gFinderLaunch;
42static BOOL   gCalledAppMainline = FALSE;
43
44static NSString *getApplicationName(void)
45{
46    NSDictionary *dict;
47    NSString *appName = 0;
48
49    /* Determine the application name */
50    dict = (NSDictionary *)CFBundleGetInfoDictionary(CFBundleGetMainBundle());
51    if (dict)
52        appName = [dict objectForKey: @"CFBundleName"];
53
54    if (![appName length])
55        appName = [[NSProcessInfo processInfo] processName];
56
57    return appName;
58}
59
60#if SDL_USE_NIB_FILE
61/* A helper category for NSString */
62@interface NSString (ReplaceSubString)
63- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
64@end
65#endif
66
67@interface SDLApplication : NSApplication
68@end
69
70@implementation SDLApplication
71/* Invoked from the Quit menu item */
72- (void)terminate:(id)sender
73{
74    /* Post a SDL_QUIT event */
75    SDL_Event event;
76    event.type = SDL_QUIT;
77    SDL_PushEvent(&event);
78}
79@end
80
81/* The main class of the application, the application's delegate */
82@implementation SDLMain
83
84/* Set the working directory to the .app's parent directory */
85- (void) setupWorkingDirectory:(BOOL)shouldChdir
86{
87    if (shouldChdir)
88    {
89        char parentdir[MAXPATHLEN];
90		CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
91		CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url);
92		if (CFURLGetFileSystemRepresentation(url2, true, (UInt8 *)parentdir, MAXPATHLEN)) {
93	        assert ( chdir (parentdir) == 0 );   /* chdir to the binary app's parent */
94		}
95		CFRelease(url);
96		CFRelease(url2);
97	}
98
99}
100
101#if SDL_USE_NIB_FILE
102
103/* Fix menu to contain the real app name instead of "SDL App" */
104- (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
105{
106    NSRange aRange;
107    NSEnumerator *enumerator;
108    NSMenuItem *menuItem;
109
110    aRange = [[aMenu title] rangeOfString:@"SDL App"];
111    if (aRange.length != 0)
112        [aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
113
114    enumerator = [[aMenu itemArray] objectEnumerator];
115    while ((menuItem = [enumerator nextObject]))
116    {
117        aRange = [[menuItem title] rangeOfString:@"SDL App"];
118        if (aRange.length != 0)
119            [menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
120        if ([menuItem hasSubmenu])
121            [self fixMenu:[menuItem submenu] withAppName:appName];
122    }
123    [ aMenu sizeToFit ];
124}
125
126#else
127
128static void setApplicationMenu(void)
129{
130    /* warning: this code is very odd */
131    NSMenu *appleMenu;
132    NSMenuItem *menuItem;
133    NSString *title;
134    NSString *appName;
135
136    appName = getApplicationName();
137    appleMenu = [[NSMenu alloc] initWithTitle:@""];
138
139    /* Add menu items */
140    title = [@"About " stringByAppendingString:appName];
141    [appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
142
143    [appleMenu addItem:[NSMenuItem separatorItem]];
144
145    title = [@"Hide " stringByAppendingString:appName];
146    [appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"];
147
148    menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"];
149    [menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask|NSCommandKeyMask)];
150
151    [appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
152
153    [appleMenu addItem:[NSMenuItem separatorItem]];
154
155    title = [@"Quit " stringByAppendingString:appName];
156    [appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
157
158
159    /* Put menu into the menubar */
160    menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
161    [menuItem setSubmenu:appleMenu];
162    [[NSApp mainMenu] addItem:menuItem];
163
164    /* Tell the application object that this is now the application menu */
165    [NSApp setAppleMenu:appleMenu];
166
167    /* Finally give up our references to the objects */
168    [appleMenu release];
169    [menuItem release];
170}
171
172/* Create a window menu */
173static void setupWindowMenu(void)
174{
175    NSMenu      *windowMenu;
176    NSMenuItem  *windowMenuItem;
177    NSMenuItem  *menuItem;
178
179    windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
180
181    /* "Minimize" item */
182    menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
183    [windowMenu addItem:menuItem];
184    [menuItem release];
185
186    /* Put menu into the menubar */
187    windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
188    [windowMenuItem setSubmenu:windowMenu];
189    [[NSApp mainMenu] addItem:windowMenuItem];
190
191    /* Tell the application object that this is now the window menu */
192    [NSApp setWindowsMenu:windowMenu];
193
194    /* Finally give up our references to the objects */
195    [windowMenu release];
196    [windowMenuItem release];
197}
198
199/* Replacement for NSApplicationMain */
200static void CustomApplicationMain (int argc, char **argv)
201{
202    NSAutoreleasePool	*pool = [[NSAutoreleasePool alloc] init];
203    SDLMain				*sdlMain;
204
205    /* Ensure the application object is initialised */
206    [SDLApplication sharedApplication];
207
208#ifdef SDL_USE_CPS
209    {
210        CPSProcessSerNum PSN;
211        /* Tell the dock about us */
212        if (!CPSGetCurrentProcess(&PSN))
213            if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
214                if (!CPSSetFrontProcess(&PSN))
215                    [SDLApplication sharedApplication];
216    }
217#endif /* SDL_USE_CPS */
218
219    /* Set up the menubar */
220    [NSApp setMainMenu:[[NSMenu alloc] init]];
221    setApplicationMenu();
222    setupWindowMenu();
223
224    /* Create SDLMain and make it the app delegate */
225    sdlMain = [[SDLMain alloc] init];
226    [NSApp setDelegate:sdlMain];
227
228    /* Start the main event loop */
229    [NSApp run];
230
231    [sdlMain release];
232    [pool release];
233}
234
235#endif
236
237
238/*
239 * Catch document open requests...this lets us notice files when the app
240 *  was launched by double-clicking a document, or when a document was
241 *  dragged/dropped on the app's icon. You need to have a
242 *  CFBundleDocumentsType section in your Info.plist to get this message,
243 *  apparently.
244 *
245 * Files are added to gArgv, so to the app, they'll look like command line
246 *  arguments. Previously, apps launched from the finder had nothing but
247 *  an argv[0].
248 *
249 * This message may be received multiple times to open several docs on launch.
250 *
251 * This message is ignored once the app's mainline has been called.
252 */
253- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
254{
255    const char *temparg;
256    size_t arglen;
257    char *arg;
258    char **newargv;
259
260    if (!gFinderLaunch)  /* MacOS is passing command line args. */
261        return FALSE;
262
263    if (gCalledAppMainline)  /* app has started, ignore this document. */
264        return FALSE;
265
266    temparg = [filename UTF8String];
267    arglen = SDL_strlen(temparg) + 1;
268    arg = (char *) SDL_malloc(arglen);
269    if (arg == NULL)
270        return FALSE;
271
272    newargv = (char **) realloc(gArgv, sizeof (char *) * (gArgc + 2));
273    if (newargv == NULL)
274    {
275        SDL_free(arg);
276        return FALSE;
277    }
278    gArgv = newargv;
279
280    SDL_strlcpy(arg, temparg, arglen);
281    gArgv[gArgc++] = arg;
282    gArgv[gArgc] = NULL;
283    return TRUE;
284}
285
286
287/* Called when the internal event loop has just started running */
288- (void) applicationDidFinishLaunching: (NSNotification *) note
289{
290    int status;
291
292    /* Set the working directory to the .app's parent directory */
293    [self setupWorkingDirectory:gFinderLaunch];
294
295#if SDL_USE_NIB_FILE
296    /* Set the main menu to contain the real app name instead of "SDL App" */
297    [self fixMenu:[NSApp mainMenu] withAppName:getApplicationName()];
298#endif
299
300    /* Hand off to main application code */
301    gCalledAppMainline = TRUE;
302    status = SDL_main (gArgc, gArgv);
303
304    /* We're done, thank you for playing */
305    exit(status);
306}
307@end
308
309
310@implementation NSString (ReplaceSubString)
311
312- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
313{
314    unsigned int bufferSize;
315    unsigned int selfLen = [self length];
316    unsigned int aStringLen = [aString length];
317    unichar *buffer;
318    NSRange localRange;
319    NSString *result;
320
321    bufferSize = selfLen + aStringLen - aRange.length;
322    buffer = NSAllocateMemoryPages(bufferSize*sizeof(unichar));
323
324    /* Get first part into buffer */
325    localRange.location = 0;
326    localRange.length = aRange.location;
327    [self getCharacters:buffer range:localRange];
328
329    /* Get middle part into buffer */
330    localRange.location = 0;
331    localRange.length = aStringLen;
332    [aString getCharacters:(buffer+aRange.location) range:localRange];
333
334    /* Get last part into buffer */
335    localRange.location = aRange.location + aRange.length;
336    localRange.length = selfLen - localRange.location;
337    [self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
338
339    /* Build output string */
340    result = [NSString stringWithCharacters:buffer length:bufferSize];
341
342    NSDeallocateMemoryPages(buffer, bufferSize);
343
344    return result;
345}
346
347@end
348
349
350
351#ifdef main
352#  undef main
353#endif
354
355
356/* Main entry point to executable - should *not* be SDL_main! */
357int main (int argc, char **argv)
358{
359    /* Copy the arguments into a global variable */
360    /* This is passed if we are launched by double-clicking */
361    if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
362        gArgv = (char **) SDL_malloc(sizeof (char *) * 2);
363        gArgv[0] = argv[0];
364        gArgv[1] = NULL;
365        gArgc = 1;
366        gFinderLaunch = YES;
367    } else {
368        int i;
369        gArgc = argc;
370        gArgv = (char **) SDL_malloc(sizeof (char *) * (argc+1));
371        for (i = 0; i <= argc; i++)
372            gArgv[i] = argv[i];
373        gFinderLaunch = NO;
374    }
375
376/* ANDROID_BEGIN */
377    /* if -no-window is used, we don't want to launch a graphical
378     * application that creates a Menu bar and steals the focus.
379     */
380    {
381        int  nn;
382        for (nn = 0; nn < argc; nn++) {
383            if ( !strcmp( argv[nn], "-no-window" ) ) {
384                return SDL_main (argc, argv);
385            }
386        }
387    }
388/* ANDROID_END */
389
390#if SDL_USE_NIB_FILE
391    [SDLApplication poseAsClass:[NSApplication class]];
392    NSApplicationMain (argc, argv);
393#else
394    CustomApplicationMain (argc, argv);
395#endif
396    return 0;
397}
398
399