Tweak.mm

   1 /* Cydget - open-source IntelliScreen replacement
   2  * Copyright (C) 2009  Jay Freeman (saurik)
   3 */
   4
   5 /*
   6  *        Redistribution and use in source and binary
   7  * forms, with or without modification, are permitted
   8  * provided that the following conditions are met:
   9  *
  10  * 1. Redistributions of source code must retain the
  11  *    above copyright notice, this list of conditions
  12  *    and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the
  14  *    above copyright notice, this list of conditions
  15  *    and the following disclaimer in the documentation
  16  *    and/or other materials provided with the
  17  *    distribution.
  18  * 3. The name of the author may not be used to endorse
  19  *    or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
  23  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
  24  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
  27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  28  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  29  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  32  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  33  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  34  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  35  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36 */
  37
  38 #include <substrate.h>
  39
  40 #include <Foundation/Foundation.h>
  41 #include <GraphicsServices/GraphicsServices.h>
  42
  43 #import <SpringBoard/SBAwayController.h>
  44 #import <SpringBoard/SBAwayWindow.h>
  45
  46 MSClassHook(SpringBoard)
  47 MSClassHook(SBAwayController)
  48 MSClassHook(SBAwayView)
  49
  50 #define _trace() \
  51     NSLog(@"_trace(%s:%u)@%s %d", __FILE__, __LINE__, __FUNCTION__, active_)
  52 #define _not(type) \
  53     static_cast<type>(~type())
  54
  55 static bool menu_;
  56 static unsigned lock_;
  57
  58 static _H<NSArray> cydgets_;
  59 static size_t active_ = _not(size_t);
  60
  61 @interface NSDictionary (Cydgets)
  62 - (void) enableCydget:(SBAwayController *)away;
  63 - (void) disableCydget:(SBAwayController *)away;
  64 @end
  65
  66 @implementation NSDictionary (Cydgets)
  67
  68 - (void) enableCydget:(SBAwayController *)away {
  69     [away enableLockScreenBundleWithName:[self objectForKey:@"Plugin"]];
  70 }
  71
  72 - (void) disableCydget:(SBAwayController *)away {
  73     [away disableLockScreenBundleWithName:[self objectForKey:@"Plugin"]];
  74 }
  75
  76 @end
  77
  78 MSHook(BOOL, SBAwayController$handleMenuButtonTap, SBAwayController *self, SEL sel) {
  79     unsigned lock(lock_);
  80
  81     if (!_SBAwayController$handleMenuButtonTap(self, sel) && lock != 2) {
  82         if (active_ != _not(size_t))
  83             [[cydgets_ objectAtIndex:active_] disableCydget:self];
  84
  85         size_t count([cydgets_ count]);
  86         if ((++active_ %= count + 1) == count)
  87             active_ = _not(size_t);
  88         else
  89             [[cydgets_ objectAtIndex:active_] enableCydget:self];
  90     }
  91
  92     return YES;
  93 }
  94
  95 MSHook(void, SBAwayController$_undimScreen, SBAwayController *self, SEL sel) {
  96     if (lock_ == 1)
  97         lock_ = 2;
  98     _SBAwayController$_undimScreen(self, sel);
  99 }
 100
 101 MSHook(void, SBAwayController$undimScreen, SBAwayController *self, SEL sel) {
 102     lock_ = menu_ ? 1 : 0;
 103     _SBAwayController$undimScreen(self, sel);
 104 }
 105
 106 static void Deactivate_(SBAwayController *self) {
 107     if (active_ != _not(size_t)) {
 108         [[cydgets_ objectAtIndex:active_] disableCydget:self];
 109         active_ = _not(size_t);
 110     }
 111 }
 112
 113 MSHook(void, SBAwayController$finishedDimmingScreen, SBAwayController *self, SEL sel) {
 114     Deactivate_(self);
 115     _SBAwayController$finishedDimmingScreen(self, sel);
 116 }
 117
 118 MSHook(void, SpringBoard$menuButtonUp$, UIView *self, SEL sel, GSEventRef event) {
 119     menu_ = true;
 120     _SpringBoard$menuButtonUp$(self, sel, event);
 121     menu_ = false;
 122 }
 123
 124 MSHook(void, SBAwayView$addGestureRecognizer$, UIView *self, SEL sel, id gr) {
 125     //_SBAwayView$addGestureRecognizer$(self, sel, gr);
 126 }
 127
 128 MSInstanceMessageHook1(void, SBAwayController, _finishedUnlockAttemptWithStatus, BOOL, status) {
 129     if (status)
 130         Deactivate_(self);
 131     MSOldCall(status);
 132 }
 133
 134 #define Cydgets_ @"/System/Library/LockCydgets"
 135
 136 MSInitialize { _pooled
 137     cydgets_ = [NSMutableArray arrayWithCapacity:4];
 138
 139     for (NSString *folder in [[NSFileManager defaultManager] directoryContentsAtPath:Cydgets_])
 140         if ([folder hasSuffix:@".cydget"])
 141             [cydgets_ addObject:[NSDictionary dictionaryWithContentsOfFile:[[Cydgets_ stringByAppendingPathComponent:folder] stringByAppendingPathComponent:@"Info.plist"]]];
 142
 143     MSHookMessage1(SpringBoard, menuButtonUp);
 144
 145     MSHookMessage0(SBAwayController, handleMenuButtonTap);
 146     MSHookMessage0(SBAwayController, _undimScreen);
 147     MSHookMessage0(SBAwayController, undimScreen);
 148     MSHookMessage0(SBAwayController, finishedDimmingScreen);
 149
 150     MSHookMessage1(SBAwayView, addGestureRecognizer);
 151 }