Tweak.mm

   1 /* Cydget - open-source AwayView plugin multiplexer
   2  * Copyright (C) 2009-2011  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 #include <UIKit/UIKit.h>
  43
  44 #import <SpringBoard/SBAwayController.h>
  45 #import <SpringBoard/SBAwayView.h>
  46 #import <SpringBoard/SBAwayWindow.h>
  47 #import <SpringBoard/SpringBoard.h>
  48
  49 MSClassHook(SpringBoard)
  50
  51 MSClassHook(SBAwayController)
  52 MSClassHook(SBAwayView)
  53 MSClassHook(SBAwayViewController)
  54 MSClassHook(SBAwayWindow)
  55
  56 #define _trace() \
  57     NSLog(@"_trace(%s:%u)@%s %d", __FILE__, __LINE__, __FUNCTION__, active_)
  58 #define _not(type) \
  59     static_cast<type>(~type())
  60
  61 static bool menu_;
  62
  63 static _H<NSArray> settings_;
  64 static _H<NSArray> cydgets_;
  65 static size_t active_;
  66 static unsigned online_;
  67
  68 @interface CydgetController : NSObject {
  69 }
  70
  71 + (NSDictionary *) currentConfiguration;
  72
  73 @end
  74
  75 @implementation CydgetController
  76
  77 + (NSDictionary *) currentConfiguration {
  78     NSDictionary *cydget([cydgets_ objectAtIndex:active_]);
  79     return [cydget objectForKey:@"CYConfiguration"] ?: [cydget objectForKey:@"Configuration"];
  80 }
  81
  82 @end
  83
  84 @interface NSDictionary (Cydgets)
  85 - (void) enableCydget:(SBAwayController *)away;
  86 - (void) disableCydget:(SBAwayController *)away;
  87 @end
  88
  89 @interface UIPeripheralHost : NSObject
  90 + (UIPeripheralHost *) sharedInstance;
  91 + (void) _releaseSharedInstance;
  92 @end
  93
  94 MSClassHook(UIPeripheralHost)
  95
  96 @interface UITextEffectsWindow : UIWindow
  97 + (UIWindow *) sharedTextEffectsWindow;
  98 @end
  99
 100 @implementation NSDictionary (Cydgets)
 101
 102 - (void) enableCydget:(SBAwayController *)away {
 103     if (NSString *plugin = [self objectForKey:@"CYPlugin"] ?: [self objectForKey:@"Plugin"]) {
 104         ++online_;
 105         UIKeyboardEnableAutomaticAppearance();
 106
 107         [[UITextEffectsWindow sharedTextEffectsWindow] setWindowLevel:1000];
 108
 109         [away enableLockScreenBundleWithName:plugin];
 110     }
 111 }
 112
 113 - (void) disableCydget:(SBAwayController *)away {
 114     if (NSString *plugin = [self objectForKey:@"CYPlugin"] ?: [self objectForKey:@"Plugin"]) {
 115         [away disableLockScreenBundleWithName:plugin];
 116
 117         [$UIPeripheralHost _releaseSharedInstance];
 118
 119         UIKeyboardDisableAutomaticAppearance();
 120         --online_;
 121     }
 122 }
 123
 124 @end
 125
 126 // avoid rendering a keyboard onto the default SBAwayView while automatic keyboard is online
 127 MSInstanceMessageHook0(UIView *, SBAwayView, inputView) {
 128     // XXX: there is a conceptual error here
 129     if (online_ == 0 && false)
 130         return MSOldCall();
 131
 132     return [[[UIView alloc] init] autorelease];
 133 }
 134
 135 // by default, keyboard actions are redirected to SBAwayController and press menu button
 136 MSInstanceMessageHook1(void, SpringBoard, handleKeyEvent, GSEventRef, event) {
 137     if (online_ == 0)
 138         return MSOldCall(event);
 139
 140     return MSSuperCall(event);
 141 }
 142
 143 MSInstanceMessageHook0(BOOL, SBAwayController, handleMenuButtonTap) {
 144     if (!MSOldCall() && menu_) {
 145         [[cydgets_ objectAtIndex:active_] disableCydget:self];
 146         active_ = (active_ + 1) % [cydgets_ count];
 147         [[cydgets_ objectAtIndex:active_] enableCydget:self];
 148     }
 149
 150     return YES;
 151 }
 152
 153 MSInstanceMessageHook0(void, SBAwayController, undimScreen) {
 154     if ([self isDimmed]) {
 155         menu_ = false;
 156         [[cydgets_ objectAtIndex:active_] enableCydget:self];
 157         [[[self awayView] window] makeKeyWindow];
 158     }
 159
 160     MSOldCall();
 161 }
 162
 163 static void Deactivate_(SBAwayController *self) {
 164     [[cydgets_ objectAtIndex:active_] disableCydget:self];
 165     active_ = 0;
 166 }
 167
 168 MSInstanceMessageHook1(void, SBAwayController, dimScreen, BOOL, dim) {
 169     Deactivate_([$SBAwayController sharedAwayController]);
 170     MSOldCall(dim);
 171 }
 172
 173 MSInstanceMessageHook1(void, SpringBoard, menuButtonDown, GSEventRef, event) {
 174     menu_ = true;
 175     MSOldCall(event);
 176 }
 177
 178 MSInstanceMessageHook1(void, SBAwayView, addGestureRecognizer, id, recognizer) {
 179     if (online_ == 0)
 180         return MSOldCall(recognizer);
 181 }
 182
 183 MSInstanceMessageHook1(void, SBAwayWindow, sendGSEvent, GSEventRef, event) {
 184     NSLog(@"sendGSEvent");
 185     if (online_ == 0)
 186         return MSOldCall(event);
 187
 188     return MSSuperCall(event);
 189 }
 190
 191 #define Cydgets_ @"/System/Library/LockCydgets"
 192
 193 static void CydgetSetup() {
 194     NSString *plist([NSString stringWithFormat:@"%@/Library/Preferences/com.saurik.Cydget.plist", NSHomeDirectory()]);
 195     settings_ = [NSMutableDictionary dictionaryWithContentsOfFile:plist] ?: [NSMutableDictionary dictionary];
 196
 197     NSArray *cydgets([settings_ objectForKey:@"LockCydgets"] ?: [NSArray arrayWithObjects:[NSDictionary dictionaryWithObjectsAndKeys:
 198         @"Welcome", @"Name", [NSNumber numberWithBool:YES], @"Active", nil
 199     ], [NSDictionary dictionaryWithObjectsAndKeys:
 200         @"AwayView", @"Name", [NSNumber numberWithBool:YES], @"Active", nil
 201     ], nil]);
 202
 203     cydgets_ = [NSMutableArray arrayWithCapacity:4];
 204     for (NSDictionary *cydget in cydgets)
 205         if ([[cydget objectForKey:@"Active"] boolValue])
 206             if (NSDictionary *info = [NSDictionary dictionaryWithContentsOfFile:[NSString stringWithFormat:@"%@/%@.cydget/Info.plist", Cydgets_, [cydget objectForKey:@"Name"]]])
 207                 [cydgets_ addObject:info];
 208
 209     if ([cydgets_ count] == 0)
 210         cydgets_ = nil;
 211 }
 212
 213 // XXX: this could happen while it is unlocked
 214 MSInstanceMessageHook1(id, SBAwayView, initWithFrame, CGRect, frame) {
 215     self = MSOldCall(frame);
 216     CydgetSetup();
 217     [[cydgets_ objectAtIndex:active_] enableCydget:[$SBAwayController sharedAwayController]];
 218     return self;
 219 }
 220
 221 MSInstanceMessageHook1(void, SBAwayController, _finishedUnlockAttemptWithStatus, BOOL, status) {
 222     if (status)
 223         Deactivate_(self);
 224     MSOldCall(status);
 225 }
 226
 227 // this is called occasionally by -[SBAwayView updateInterface] and takes away our keyboard
 228 MSInstanceMessageHook0(void, SBAwayView, _fixupFirstResponder) {
 229     if (online_ == 0)
 230         return MSOldCall();
 231 }
 232
 233 MSInstanceMessageHook0(void, SBAwayView, updateInterface) {
 234     MSOldCall();
 235
 236     NSDictionary *cydget([cydgets_ objectAtIndex:active_]);
 237
 238     NSString *background([cydget objectForKey:@"CYBackground"]);
 239     if ([background isEqualToString:@"Wallpaper"]) {
 240         MSIvarHook(UIView *, _backgroundView);
 241         [_backgroundView setAlpha:1.0f];
 242     }
 243
 244     if ([[cydget objectForKey:@"CYShowDateTime"] boolValue])
 245         [self addDateView];
 246 }