CydgetLoader.mm

   1 /* Cydget - open-source AwayView plugin multiplexer
   2  * Copyright (C) 2009-2014  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   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.
  11  *
  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.
  16  *
  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 **/
  20 /* }}} */
  21
  22 #include <CydiaSubstrate/CydiaSubstrate.h>
  23
  24 #include <Foundation/Foundation.h>
  25 #include <UIKit/UIKit.h>
  26
  27 #import <SpringBoard/SBAwayController.h>
  28 #import <SpringBoard/SBAwayView.h>
  29 #import <SpringBoard/SBAwayWindow.h>
  30 #import <SpringBoard/SpringBoard.h>
  31
  32 #include "Handle.hpp"
  33
  34 #define _trace() \
  35     NSLog(@"_trace(%s:%u)@%s %zd", __FILE__, __LINE__, __FUNCTION__, active_)
  36 #define _not(type) \
  37     static_cast<type>(~type())
  38
  39 typedef void *GSEventRef;
  40
  41 extern "C" void UIKeyboardEnableAutomaticAppearance();
  42 extern "C" void UIKeyboardDisableAutomaticAppearance();
  43
  44 MSClassHook(SpringBoard)
  45
  46 MSClassHook(SBAwayController)
  47 MSClassHook(SBAwayView)
  48 MSClassHook(SBAwayWindow)
  49 MSClassHook(SBLockScreenManager)
  50 MSClassHook(SBLockScreenView)
  51 MSClassHook(SBLockScreenViewController)
  52 MSClassHook(SBScreenFadeAnimationController)
  53 MSClassHook(SBUserAgent)
  54
  55 MSInitialize {
  56     if (kCFCoreFoundationVersionNumber < 800) {
  57         $SBUserAgent = $SBAwayController;
  58         $SBLockScreenManager = $SBAwayController;
  59         $SBLockScreenView = $SBAwayView;
  60     }
  61 }
  62
  63 static bool menu_;
  64
  65 static _H<NSDictionary> settings_;
  66 static _H<NSMutableArray> cydgets_;
  67 static size_t active_;
  68 static unsigned online_;
  69
  70 @interface CydgetController : NSObject {
  71 }
  72
  73 + (NSDictionary *) currentConfiguration;
  74
  75 @end
  76
  77 @implementation CydgetController
  78
  79 + (NSDictionary *) currentConfiguration {
  80     NSDictionary *cydget([cydgets_ objectAtIndex:active_]);
  81     return [cydget objectForKey:@"CYConfiguration"] ?: [cydget objectForKey:@"Configuration"];
  82 }
  83
  84 @end
  85
  86 @interface SBUserAgent : NSObject
  87 + (SBUserAgent *) sharedUserAgent;
  88 - (void) enableLockScreenBundleNamed:(NSString *)bundle activationContext:(id)context;
  89 - (void) disableLockScreenBundleNamed:(NSString *)bundle deactivationContext:(id)context;
  90 @end
  91
  92 @interface UIPeripheralHost : NSObject
  93 + (UIPeripheralHost *) sharedInstance;
  94 + (void) _releaseSharedInstance;
  95 @end
  96
  97 MSClassHook(UIPeripheralHost)
  98
  99 @interface UITextEffectsWindow : UIWindow
 100 + (UIWindow *) sharedTextEffectsWindow;
 101 @end
 102
 103 @implementation NSDictionary (CydgetLoader)
 104
 105 - (NSString *) cydget {
 106     return [self objectForKey:@"CYPlugin"] ?: [self objectForKey:@"Plugin"];
 107 }
 108
 109 - (void) enableCydget {
 110     if (NSString *plugin = [self cydget]) {
 111         ++online_;
 112
 113         if (kCFCoreFoundationVersionNumber < 600)
 114             UIKeyboardEnableAutomaticAppearance();
 115
 116         [[UITextEffectsWindow sharedTextEffectsWindow] setWindowLevel:1000];
 117
 118         if (kCFCoreFoundationVersionNumber < 800)
 119             [[$SBAwayController sharedAwayController] enableLockScreenBundleWithName:plugin];
 120         else
 121             [[$SBUserAgent sharedUserAgent] enableLockScreenBundleNamed:plugin activationContext:nil];
 122     }
 123 }
 124
 125 - (void) disableCydget {
 126     if (NSString *plugin = [self cydget]) {
 127         if (kCFCoreFoundationVersionNumber < 800)
 128             [[$SBAwayController sharedAwayController] disableLockScreenBundleWithName:plugin];
 129         else
 130             [[$SBUserAgent sharedUserAgent] disableLockScreenBundleNamed:plugin deactivationContext:nil];
 131
 132         [$UIPeripheralHost _releaseSharedInstance];
 133
 134         if (kCFCoreFoundationVersionNumber < 600)
 135             UIKeyboardDisableAutomaticAppearance();
 136
 137         --online_;
 138     }
 139 }
 140
 141 @end
 142
 143 // avoid rendering a keyboard onto the default SBAwayView while automatic keyboard is online
 144 MSInstanceMessageHook0(UIView *, SBAwayView, inputView) {
 145     // XXX: there is a conceptual error here
 146     if (online_ == 0 && false || kCFCoreFoundationVersionNumber > 600)
 147         return MSOldCall();
 148
 149     return [[[UIView alloc] init] autorelease];
 150 }
 151
 152 // by default, keyboard actions are redirected to SBAwayController and press menu button
 153 MSInstanceMessageHook1(void, SpringBoard, handleKeyEvent, GSEventRef, event) {
 154     if (online_ == 0 || kCFCoreFoundationVersionNumber > 600)
 155         return MSOldCall(event);
 156
 157     return MSSuperCall(event);
 158 }
 159
 160 MSInstanceMessageHook0(BOOL, SBLockScreenManager, handleMenuButtonTap) {
 161     if (!MSOldCall() && menu_) {
 162         [[cydgets_ objectAtIndex:active_] disableCydget];
 163         active_ = (active_ + 1) % [cydgets_ count];
 164         [[cydgets_ objectAtIndex:active_] enableCydget];
 165     }
 166
 167     return YES;
 168 }
 169
 170 void Activate_() {
 171     menu_ = false;
 172     [[cydgets_ objectAtIndex:active_] enableCydget];
 173 }
 174
 175 static void Undim_(SBAwayController *self) {
 176     if ([self isDimmed]) {
 177         Activate_();
 178         [[[self awayView] window] makeKeyWindow];
 179     }
 180 }
 181
 182 MSInstanceMessageHook1(void, SBLockScreenViewController, startLockScreenFadeInAnimationForSource, int, source) {
 183     Activate_();
 184     MSOldCall(source);
 185 }
 186
 187 MSInstanceMessageHook0(void, SBAwayController, undimScreen) {
 188     Undim_(self);
 189     MSOldCall();
 190 }
 191
 192 MSInstanceMessageHook1(void, SBAwayController, undimScreen, BOOL, undim) {
 193     Undim_(self);
 194     MSOldCall(undim);
 195 }
 196
 197 static void Deactivate_() {
 198     [[cydgets_ objectAtIndex:active_] disableCydget];
 199     active_ = 0;
 200 }
 201
 202 MSHook(void, BKSDisplayServicesSetScreenBlanked, BOOL blanked) {
 203     if (blanked)
 204         Deactivate_();
 205     _BKSDisplayServicesSetScreenBlanked(blanked);
 206 }
 207
 208 MSInitialize {
 209     MSHookFunction("_BKSDisplayServicesSetScreenBlanked", MSHake(BKSDisplayServicesSetScreenBlanked));
 210 }
 211
 212 MSInstanceMessageHook1(void, SBUserAgent, dimScreen, BOOL, dim) {
 213     Deactivate_();
 214     MSOldCall(dim);
 215 }
 216
 217 MSInstanceMessageHook1(void, SpringBoard, _menuButtonDown, GSEventRef, event) {
 218     menu_ = true;
 219     MSOldCall(event);
 220 }
 221
 222 MSInstanceMessageHook1(void, SpringBoard, menuButtonDown, GSEventRef, event) {
 223     menu_ = true;
 224     MSOldCall(event);
 225 }
 226
 227 MSInstanceMessageHook1(void, SBAwayView, addGestureRecognizer, id, recognizer) {
 228     if (online_ == 0 || kCFCoreFoundationVersionNumber > 600)
 229         return MSOldCall(recognizer);
 230 }
 231
 232 MSInstanceMessageHook1(void, SBAwayWindow, sendGSEvent, GSEventRef, event) {
 233     if (online_ == 0 || kCFCoreFoundationVersionNumber > 600)
 234         return MSOldCall(event);
 235
 236     return MSSuperCall(event);
 237 }
 238
 239 #define Cydgets_ @"/System/Library/LockCydgets"
 240
 241 static void CydgetSetup() {
 242     NSString *plist([NSString stringWithFormat:@"%@/Library/Preferences/com.saurik.Cydget.plist", NSHomeDirectory()]);
 243     settings_ = [NSMutableDictionary dictionaryWithContentsOfFile:plist] ?: [NSMutableDictionary dictionary];
 244
 245     NSArray *cydgets([settings_ objectForKey:@"LockCydgets"] ?: [NSArray arrayWithObjects:[NSDictionary dictionaryWithObjectsAndKeys:
 246         @"Welcome", @"Name", [NSNumber numberWithBool:YES], @"Active", nil
 247     ], [NSDictionary dictionaryWithObjectsAndKeys:
 248         @"AwayView", @"Name", [NSNumber numberWithBool:YES], @"Active", nil
 249     ], nil]);
 250
 251     cydgets_ = [NSMutableArray arrayWithCapacity:4];
 252     for (NSDictionary *cydget in cydgets)
 253         if ([[cydget objectForKey:@"Active"] boolValue])
 254             if (NSDictionary *info = [NSDictionary dictionaryWithContentsOfFile:[NSString stringWithFormat:@"%@/%@.cydget/Info.plist", Cydgets_, [cydget objectForKey:@"Name"]]])
 255                 [cydgets_ addObject:info];
 256
 257     if ([cydgets_ count] == 0)
 258         cydgets_ = nil;
 259 }
 260
 261 // XXX: this could happen while it is unlocked
 262 MSInstanceMessageHook1(id, SBLockScreenView, initWithFrame, CGRect, frame) {
 263     self = MSOldCall(frame);
 264     CydgetSetup();
 265     [[cydgets_ objectAtIndex:active_] enableCydget];
 266     return self;
 267 }
 268
 269 MSInstanceMessageHook1(void, SBAwayController, _finishedUnlockAttemptWithStatus, BOOL, status) {
 270     if (status)
 271         Deactivate_();
 272     MSOldCall(status);
 273 }
 274
 275 // this is called occasionally by -[SBAwayView updateInterface] and takes away our keyboard
 276 MSInstanceMessageHook0(void, SBAwayView, _fixupFirstResponder) {
 277     if (online_ == 0)
 278         return MSOldCall();
 279 }
 280
 281 MSInstanceMessageHook0(void, SBAwayView, updateInterface) {
 282     MSOldCall();
 283
 284     NSDictionary *cydget([cydgets_ objectAtIndex:active_]);
 285
 286     NSString *background([cydget objectForKey:@"CYBackground"]);
 287     if ([background isEqualToString:@"Wallpaper"]) {
 288         MSIvarHook(UIView *, _backgroundView);
 289         [_backgroundView setAlpha:1.0f];
 290     }
 291
 292     if ([[cydget objectForKey:@"CYShowDateTime"] boolValue])
 293         [self addDateView];
 294 }