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Bring back the UITableViewStyleGrouped color hack.
[cydia.git] / Menes / yieldToSelector.mm
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28b8b687 1/* Cydia - iPhone UIKit Front-End for Debian APT
323746d3 2 * Copyright (C) 2008-2013 Jay Freeman (saurik)
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3*/
4
6d9696a5 5/* GNU General Public License, Version 3 {{{ */
28b8b687 6/*
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7 * Cydia is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published
9 * by the Free Software Foundation, either version 3 of the License,
10 * or (at your option) any later version.
28b8b687 11 *
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12 * Cydia is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
28b8b687 16 *
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17 * You should have received a copy of the GNU General Public License
18 * along with Cydia. If not, see <http://www.gnu.org/licenses/>.
19**/
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20/* }}} */
21
d458596e 22#include "Menes/yieldToSelector.h"
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23
24@implementation NSObject (MenesYieldToSelector)
25
26- (void) doNothing {
27}
28
29- (void) _yieldToContext:(NSMutableArray *)context {
30 NSAutoreleasePool *pool([[NSAutoreleasePool alloc] init]);
31
32 SEL selector(reinterpret_cast<SEL>([[context objectAtIndex:0] pointerValue]));
33 id object([[context objectAtIndex:1] nonretainedObjectValue]);
34 volatile bool &stopped(*reinterpret_cast<bool *>([[context objectAtIndex:2] pointerValue]));
35
36 /* XXX: deal with exceptions */
37 id value([self performSelector:selector withObject:object]);
38
39 NSMethodSignature *signature([self methodSignatureForSelector:selector]);
40 [context removeAllObjects];
41 if ([signature methodReturnLength] != 0 && value != nil)
42 [context addObject:value];
43
44 stopped = true;
45
46 [self
47 performSelectorOnMainThread:@selector(doNothing)
48 withObject:nil
49 waitUntilDone:NO
50 ];
51
52 [pool release];
53}
54
55- (id) yieldToSelector:(SEL)selector withObject:(id)object {
56 volatile bool stopped(false);
57
58 NSMutableArray *context([NSMutableArray arrayWithObjects:
59 [NSValue valueWithPointer:selector],
60 [NSValue valueWithNonretainedObject:object],
61 [NSValue valueWithPointer:const_cast<bool *>(&stopped)],
62 nil]);
63
64 NSThread *thread([[[NSThread alloc]
65 initWithTarget:self
66 selector:@selector(_yieldToContext:)
67 object:context
68 ] autorelease]);
69
70 [thread start];
71
72 NSRunLoop *loop([NSRunLoop currentRunLoop]);
73 NSDate *future([NSDate distantFuture]);
74 NSString *mode([loop currentMode] ?: NSDefaultRunLoopMode);
75
76 while (!stopped && [loop runMode:mode beforeDate:future]);
77
78 return [context count] == 0 ? nil : [context objectAtIndex:0];
79}
80
81- (id) yieldToSelector:(SEL)selector {
82 return [self yieldToSelector:selector withObject:nil];
83}
84
85@end