summaryrefslogtreecommitdiffstats
path: root/macosx/tkMacOSXInit.c
blob: aaeb3480b2615fd670997cddbf77dc4538db9806 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
/*
 * tkMacOSXInit.c --
 *
 *	This file contains Mac OS X -specific interpreter initialization
 *	functions.
 *
 * Copyright (c) 1995-1997 Sun Microsystems, Inc.
 * Copyright 2001-2009, Apple Inc.
 * Copyright (c) 2005-2009 Daniel A. Steffen <das@users.sourceforge.net>
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tkMacOSXPrivate.h"

#include <sys/stat.h>
#include <sys/utsname.h>
#include <dlfcn.h>
#include <objc/objc-auto.h>

static char tkLibPath[PATH_MAX + 1] = "";

/*
 * If the App is in an App package, then we want to add the Scripts directory
 * to the auto_path.
 */

static char scriptPath[PATH_MAX + 1] = "";

int tkMacOSXGCEnabled = 0;
long tkMacOSXMacOSXVersion = 0;

#pragma mark TKApplication(TKInit)

#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
#define NSTextInputContextKeyboardSelectionDidChangeNotification @"NSTextInputContextKeyboardSelectionDidChangeNotification"
static void keyboardChanged(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo) {
    [[NSNotificationCenter defaultCenter] postNotificationName:NSTextInputContextKeyboardSelectionDidChangeNotification object:nil userInfo:nil];
}
#endif

@interface TKApplication(TKKeyboard)
- (void) keyboardChanged: (NSNotification *) notification;
@end

#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
#define TKApplication_NSApplicationDelegate <NSApplicationDelegate>
#else
#define TKApplication_NSApplicationDelegate
#endif
@interface TKApplication(TKWindowEvent) TKApplication_NSApplicationDelegate
- (void) _setupWindowNotifications;
@end

@interface TKApplication(TKScrlbr)
- (void) _setupScrollBarNotifications;
@end

@interface TKApplication(TKMenus)
- (void) _setupMenus;
@end

@implementation TKApplication
@end

@implementation TKApplication(TKInit)
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
- (void) _postedNotification: (NSNotification *) notification
{
    TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, notification);
}
#endif

- (void) _setupApplicationNotifications
{
    NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
#define observe(n, s) \
	[nc addObserver:self selector:@selector(s) name:(n) object:nil]
    observe(NSApplicationDidBecomeActiveNotification, applicationActivate:);
    observe(NSApplicationDidResignActiveNotification, applicationDeactivate:);
    observe(NSApplicationDidUnhideNotification, applicationShowHide:);
    observe(NSApplicationDidHideNotification, applicationShowHide:);
    observe(NSApplicationDidChangeScreenParametersNotification, displayChanged:);
    observe(NSTextInputContextKeyboardSelectionDidChangeNotification, keyboardChanged:);
#undef observe
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
    CFNotificationCenterAddObserver(CFNotificationCenterGetDistributedCenter(), NULL, &keyboardChanged, kTISNotifySelectedKeyboardInputSourceChanged, NULL, CFNotificationSuspensionBehaviorCoalesce);
#endif
}

- (void) _setupEventLoop
{
    _running = 1;
    if (!_appFlags._hasBeenRun) {
        _appFlags._hasBeenRun = YES;
	[self finishLaunching];
    }
    [self setWindowsNeedUpdate:YES];
}

- (void) _setup: (Tcl_Interp *) interp
{
    _eventInterp = interp;
    _defaultMainMenu = nil;
    [self _setupMenus];
    [self setDelegate:self];
#ifdef TK_MAC_DEBUG_NOTIFICATIONS
    [[NSNotificationCenter defaultCenter] addObserver:self
	    selector:@selector(_postedNotification:) name:nil object:nil];
#endif
    [self _setupWindowNotifications];
    [self _setupScrollBarNotifications];
    [self _setupApplicationNotifications];
}

- (NSString *) tkFrameworkImagePath: (NSString *) image
{
    NSString *path = nil;

    if (tkLibPath[0] != '\0') {
	path = [[NSBundle bundleWithPath:[[NSString stringWithUTF8String:
		tkLibPath] stringByAppendingString:@"/../.."]]
		pathForImageResource:image];
    }
    if (!path) {
	const char *tk_library = Tcl_GetVar2(_eventInterp, "tk_library", NULL,
		TCL_GLOBAL_ONLY);

	if (tk_library) {
	    NSFileManager *fm = [NSFileManager defaultManager];

	    path = [[NSString stringWithUTF8String:tk_library]
		    stringByAppendingFormat:@"/%@", image];
	    if (![fm isReadableFileAtPath:path]) {
		path = [[NSString stringWithUTF8String:tk_library]
			stringByAppendingFormat:@"/../macosx/%@", image];
		if (![fm isReadableFileAtPath:path]) {
		    path = nil;
		}
	    }
	}
    }
#ifdef TK_MAC_DEBUG
    if (!path && getenv("TK_SRCROOT")) {
	path = [[NSString stringWithUTF8String:getenv("TK_SRCROOT")]
		stringByAppendingFormat:@"/macosx/%@", image];
	if (![[NSFileManager defaultManager] isReadableFileAtPath:path]) {
	    path = nil;
	}
    }
#endif
    return path;
}
@end

#pragma mark -

/*
 *----------------------------------------------------------------------
 *
 * DoWindowActivate --
 *
 *	Idle handler that sets the application icon to the generic Tk icon.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

static void
SetApplicationIcon(
    ClientData clientData)
{
    NSString *path = [NSApp tkFrameworkImagePath:@"Tk.icns"];
    if (path) {
	NSImage *image = [[NSImage alloc] initWithContentsOfFile:path];
	if (image) {
	    [NSApp setApplicationIconImage:image];
	    [image release];
	}
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkpInit --
 *
 *	Performs Mac-specific interpreter initialization related to the
 *	tk_library variable.
 *
 * Results:
 *	Returns a standard Tcl result. Leaves an error message or result in
 *	the interp's result.
 *
 * Side effects:
 *	Sets "tk_library" Tcl variable, runs "tk.tcl" script.
 *
 *----------------------------------------------------------------------
 */

int
TkpInit(
    Tcl_Interp *interp)
{
    static int initialized = 0;

    /*
     * Since it is possible for TkInit to be called multiple times and we
     * don't want to do the following initialization multiple times we protect
     * against doing it more than once.
     */

    if (!initialized) {
	int bundledExecutable = 0;
	CFBundleRef bundleRef;
	CFURLRef bundleUrl = NULL;
	struct utsname name;
	struct stat st;

	initialized = 1;

	/*
	 * Initialize/check OS version variable for runtime checks.
	 */

#if MAC_OS_X_VERSION_MIN_REQUIRED < 1050
#   error Mac OS X 10.5 required
#endif

	if (!uname(&name)) {
	    tkMacOSXMacOSXVersion = (strtod(name.release, NULL) + 96) * 10;
	}
       /*Check for new versioning scheme on Yosemite (10.10) and later.*/
	if (MAC_OS_X_VERSION_MIN_REQUIRED > 100000) {
		tkMacOSXMacOSXVersion = MAC_OS_X_VERSION_MIN_REQUIRED/100;
	    }
	if (tkMacOSXMacOSXVersion && MAC_OS_X_VERSION_MIN_REQUIRED < 100000 &&
		tkMacOSXMacOSXVersion/10 < MAC_OS_X_VERSION_MIN_REQUIRED/10) {
	    Tcl_Panic("Mac OS X 10.%d or later required !",
		    (MAC_OS_X_VERSION_MIN_REQUIRED/10)-100);
	}
	

#ifdef TK_FRAMEWORK
	/*
	 * When Tk is in a framework, force tcl_findLibrary to look in the
	 * framework scripts directory.
	 * FIXME: Should we come up with a more generic way of doing this?
	 */

	if (Tcl_MacOSXOpenVersionedBundleResources(interp,
		"com.tcltk.tklibrary", TK_FRAMEWORK_VERSION, 0, PATH_MAX,
		tkLibPath) != TCL_OK) {
	    TkMacOSXDbgMsg("Tcl_MacOSXOpenVersionedBundleResources failed");
	}
#endif

	static NSAutoreleasePool *pool = nil;
	if (!pool) {
	    pool = [NSAutoreleasePool new];
	}
	tkMacOSXGCEnabled = ([NSGarbageCollector defaultCollector] != nil);
	[[NSUserDefaults standardUserDefaults] registerDefaults:
		[NSDictionary dictionaryWithObjectsAndKeys:
		[NSNumber numberWithBool:YES],
		@"_NSCanWrapButtonTitles",
		[NSNumber numberWithInt:-1],
		@"NSStringDrawingTypesetterBehavior",
		nil]];
	[TKApplication sharedApplication];
	[NSApp _setup:interp];

	/* Check whether we are a bundled executable: */
	bundleRef = CFBundleGetMainBundle();
	if (bundleRef) {
	    bundleUrl = CFBundleCopyBundleURL(bundleRef);
	}
	if (bundleUrl) {
	    /*
	     * A bundled executable is two levels down from its main bundle
	     * directory (e.g. Wish.app/Contents/MacOS/Wish), whereas an
	     * unbundled executable's main bundle directory is just the
	     * directory containing the executable. So to check whether we are
	     * bundled, we delete the last three path components of the
	     * executable's url and compare the resulting url with the main
	     * bundle url.
	     */

	    int j = 3;
	    CFURLRef url = CFBundleCopyExecutableURL(bundleRef);

	    while (url && j--) {
		CFURLRef parent =
			CFURLCreateCopyDeletingLastPathComponent(NULL, url);

		CFRelease(url);
		url = parent;
	    }
	    if (url) {
		bundledExecutable = CFEqual(bundleUrl, url);
		CFRelease(url);
	    }
	    CFRelease(bundleUrl);
	}

	if (!bundledExecutable) {
	    /*
	     * If we are loaded into an executable that is not a bundled
	     * application, the window server does not let us come to the
	     * foreground. For such an executable, notify the window server
	     * that we are now a full GUI application.
	     */

	    OSStatus err = procNotFound;
	    ProcessSerialNumber psn = { 0, kCurrentProcess };

	    err = ChkErr(TransformProcessType, &psn,
		    kProcessTransformToForegroundApplication);

	    /*
	     * Set application icon to generic Tk icon, do it at idle time
	     * instead of now to ensure tk_library is setup.
	     */

	    Tcl_DoWhenIdle(SetApplicationIcon, NULL);
	}

	[NSApp _setupEventLoop];
	TkMacOSXInitAppleEvents(interp);
	TkMacOSXUseAntialiasedText(interp, -1);
	TkMacOSXInitCGDrawing(interp, TRUE, 0);
	[pool drain];
	pool = [NSAutoreleasePool new];

	/*
	 * FIXME: Close stdin & stdout for remote debugging otherwise we will
	 * fight with gdb for stdin & stdout
	 */

	if (getenv("XCNOSTDIN") != NULL) {
	    close(0);
	    close(1);
	}

	/*
	 * If we don't have a TTY and stdin is a special character file of
	 * length 0, (e.g. /dev/null, which is what Finder sets when double
	 * clicking Wish) then use the Tk based console interpreter.
	 */

	if (getenv("TK_CONSOLE") ||
		(!isatty(0) && (fstat(0, &st) ||
		(S_ISCHR(st.st_mode) && st.st_blocks == 0)))) {
	    Tk_InitConsoleChannels(interp);
	    Tcl_RegisterChannel(interp, Tcl_GetStdChannel(TCL_STDIN));
	    Tcl_RegisterChannel(interp, Tcl_GetStdChannel(TCL_STDOUT));
	    Tcl_RegisterChannel(interp, Tcl_GetStdChannel(TCL_STDERR));

	    /*
	     * Only show the console if we don't have a startup script
	     * and tcl_interactive hasn't been set already.
	     */

	    if (Tcl_GetStartupScript(NULL) == NULL) {
		const char *intvar = Tcl_GetVar2(interp,
			"tcl_interactive", NULL, TCL_GLOBAL_ONLY);

		if (intvar == NULL) {
		    Tcl_SetVar2(interp, "tcl_interactive", NULL, "1",
			    TCL_GLOBAL_ONLY);
		}
	    }
	    if (Tk_CreateConsoleWindow(interp) == TCL_ERROR) {
		return TCL_ERROR;
	    }
	}
    }

    Tk_MacOSXSetupTkNotifier();

    if (tkLibPath[0] != '\0') {
	Tcl_SetVar2(interp, "tk_library", NULL, tkLibPath, TCL_GLOBAL_ONLY);
    }

    if (scriptPath[0] != '\0') {
	Tcl_SetVar2(interp, "auto_path", NULL, scriptPath,
		TCL_GLOBAL_ONLY|TCL_LIST_ELEMENT|TCL_APPEND_VALUE);
    }

    Tcl_CreateObjCommand(interp, "::tk::mac::standardAboutPanel",
	    TkMacOSXStandardAboutPanelObjCmd, NULL, NULL);
    Tcl_CreateObjCommand(interp, "::tk::mac::iconBitmap",
	    TkMacOSXIconBitmapObjCmd, NULL, NULL);

    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * TkpGetAppName --
 *
 *	Retrieves the name of the current application from a platform specific
 *	location. For Unix, the application name is the tail of the path
 *	contained in the tcl variable argv0.
 *
 * Results:
 *	Returns the application name in the given Tcl_DString.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

void
TkpGetAppName(
    Tcl_Interp *interp,
    Tcl_DString *namePtr)	/* A previously initialized Tcl_DString. */
{
    const char *p, *name;

    name = Tcl_GetVar2(interp, "argv0", NULL, TCL_GLOBAL_ONLY);
    if ((name == NULL) || (*name == 0)) {
	name = "tk";
    } else {
	p = strrchr(name, '/');
	if (p != NULL) {
	    name = p+1;
	}
    }
    Tcl_DStringAppend(namePtr, name, -1);
}

/*
 *----------------------------------------------------------------------
 *
 * TkpDisplayWarning --
 *
 *	This routines is called from Tk_Main to display warning messages that
 *	occur during startup.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Generates messages on stdout.
 *
 *----------------------------------------------------------------------
 */

void
TkpDisplayWarning(
    const char *msg,		/* Message to be displayed. */
    const char *title)		/* Title of warning. */
{
    Tcl_Channel errChannel = Tcl_GetStdChannel(TCL_STDERR);

    if (errChannel) {
	Tcl_WriteChars(errChannel, title, -1);
	Tcl_WriteChars(errChannel, ": ", 2);
	Tcl_WriteChars(errChannel, msg, -1);
	Tcl_WriteChars(errChannel, "\n", 1);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkMacOSXDefaultStartupScript --
 *
 *	On MacOS X, we look for a file in the Resources/Scripts directory
 *	called AppMain.tcl and if found, we set argv[1] to that, so that the
 *	rest of the code will find it, and add the Scripts folder to the
 *	auto_path. If we don't find the startup script, we just bag it,
 *	assuming the user is starting up some other way.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Tcl_SetStartupScript() called when AppMain.tcl found.
 *
 *----------------------------------------------------------------------
 */

MODULE_SCOPE void
TkMacOSXDefaultStartupScript(void)
{
    CFBundleRef bundleRef;

    bundleRef = CFBundleGetMainBundle();

    if (bundleRef != NULL) {
	CFURLRef appMainURL = CFBundleCopyResourceURL(bundleRef,
		CFSTR("AppMain"), CFSTR("tcl"), CFSTR("Scripts"));

	if (appMainURL != NULL) {
	    CFURLRef scriptFldrURL;
	    char startupScript[PATH_MAX + 1];

	    if (CFURLGetFileSystemRepresentation (appMainURL, true,
		    (unsigned char *) startupScript, PATH_MAX)) {
		Tcl_SetStartupScript(Tcl_NewStringObj(startupScript,-1), NULL);
		scriptFldrURL = CFURLCreateCopyDeletingLastPathComponent(NULL,
			appMainURL);
		if (scriptFldrURL != NULL) {
		    CFURLGetFileSystemRepresentation(scriptFldrURL, true,
			    (unsigned char *) scriptPath, PATH_MAX);
		    CFRelease(scriptFldrURL);
		}
	    }
	    CFRelease(appMainURL);
	}
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkMacOSXGetNamedSymbol --
 *
 *	Dynamically acquire address of a named symbol from a loaded dynamic
 *	library, so that we can use API that may not be available on all OS
 *	versions.
 *
 * Results:
 *	Address of given symbol or NULL if unavailable.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

MODULE_SCOPE void*
TkMacOSXGetNamedSymbol(
    const char* module,
    const char* symbol)
{
    void *addr = dlsym(RTLD_NEXT, symbol);
    if (!addr) {
	(void) dlerror(); /* Clear dlfcn error state */
    }
    return addr;
}

/*
 *----------------------------------------------------------------------
 *
 * TkMacOSXGetStringObjFromCFString --
 *
 *	Get a string object from a CFString as efficiently as possible.
 *
 * Results:
 *	New string object or NULL if conversion failed.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

MODULE_SCOPE Tcl_Obj*
TkMacOSXGetStringObjFromCFString(
    CFStringRef str)
{
    Tcl_Obj *obj = NULL;
    const char *c = CFStringGetCStringPtr(str, kCFStringEncodingUTF8);

    if (c) {
	obj = Tcl_NewStringObj(c, -1);
    } else {
	CFRange all = CFRangeMake(0, CFStringGetLength(str));
	CFIndex len;

	if (CFStringGetBytes(str, all, kCFStringEncodingUTF8, 0, false, NULL,
		0, &len) > 0 && len < INT_MAX) {
	    obj = Tcl_NewObj();
	    Tcl_SetObjLength(obj, len);
	    CFStringGetBytes(str, all, kCFStringEncodingUTF8, 0, false,
		    (UInt8*) obj->bytes, len, NULL);
	}
    }
    return obj;
}

/*
 * Local Variables:
 * mode: objc
 * c-basic-offset: 4
 * fill-column: 79
 * coding: utf-8
 * End:
 */