Tweak.mm

   1 /* Cydget - open-source AwayView plugin multiplexer
   2  * Copyright (C) 2009-2013  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 #include "Handle.hpp"
  50
  51 MSClassHook(SpringBoard)
  52
  53 MSClassHook(SBAwayController)
  54 MSClassHook(SBAwayView)
  55 MSClassHook(SBAwayViewController)
  56 MSClassHook(SBAwayWindow)
  57
  58 #define _trace() \
  59     NSLog(@"_trace(%s:%u)@%s %d", __FILE__, __LINE__, __FUNCTION__, active_)
  60 #define _not(type) \
  61     static_cast<type>(~type())
  62
  63 static bool menu_;
  64
  65 static _H<NSArray> settings_;
  66 static _H<NSArray> 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 NSDictionary (Cydgets)
  87 - (void) enableCydget:(SBAwayController *)away;
  88 - (void) disableCydget:(SBAwayController *)away;
  89 @end
  90
  91 @interface UIPeripheralHost : NSObject
  92 + (UIPeripheralHost *) sharedInstance;
  93 + (void) _releaseSharedInstance;
  94 @end
  95
  96 MSClassHook(UIPeripheralHost)
  97
  98 @interface UITextEffectsWindow : UIWindow
  99 + (UIWindow *) sharedTextEffectsWindow;
 100 @end
 101
 102 @implementation NSDictionary (Cydgets)
 103
 104 - (void) enableCydget:(SBAwayController *)away {
 105     if (NSString *plugin = [self objectForKey:@"CYPlugin"] ?: [self objectForKey:@"Plugin"]) {
 106         ++online_;
 107
 108         if (kCFCoreFoundationVersionNumber < 600)
 109             UIKeyboardEnableAutomaticAppearance();
 110
 111         [[UITextEffectsWindow sharedTextEffectsWindow] setWindowLevel:1000];
 112         [away enableLockScreenBundleWithName:plugin];
 113     }
 114 }
 115
 116 - (void) disableCydget:(SBAwayController *)away {
 117     if (NSString *plugin = [self objectForKey:@"CYPlugin"] ?: [self objectForKey:@"Plugin"]) {
 118         [away disableLockScreenBundleWithName:plugin];
 119         [$UIPeripheralHost _releaseSharedInstance];
 120
 121         if (kCFCoreFoundationVersionNumber < 600)
 122             UIKeyboardDisableAutomaticAppearance();
 123
 124         --online_;
 125     }
 126 }
 127
 128 @end
 129
 130 // avoid rendering a keyboard onto the default SBAwayView while automatic keyboard is online
 131 MSInstanceMessageHook0(UIView *, SBAwayView, inputView) {
 132     // XXX: there is a conceptual error here
 133     if (online_ == 0 && false || kCFCoreFoundationVersionNumber > 600)
 134         return MSOldCall();
 135
 136     return [[[UIView alloc] init] autorelease];
 137 }
 138
 139 // by default, keyboard actions are redirected to SBAwayController and press menu button
 140 MSInstanceMessageHook1(void, SpringBoard, handleKeyEvent, GSEventRef, event) {
 141     if (online_ == 0 || kCFCoreFoundationVersionNumber > 600)
 142         return MSOldCall(event);
 143
 144     return MSSuperCall(event);
 145 }
 146
 147 MSInstanceMessageHook0(BOOL, SBAwayController, handleMenuButtonTap) {
 148     if (!MSOldCall() && menu_) {
 149         [[cydgets_ objectAtIndex:active_] disableCydget:self];
 150         active_ = (active_ + 1) % [cydgets_ count];
 151         [[cydgets_ objectAtIndex:active_] enableCydget:self];
 152     }
 153
 154     return YES;
 155 }
 156
 157 static void Undim_(SBAwayController *self) {
 158     if ([self isDimmed]) {
 159         menu_ = false;
 160         [[cydgets_ objectAtIndex:active_] enableCydget:self];
 161         [[[self awayView] window] makeKeyWindow];
 162     }
 163 }
 164
 165 MSInstanceMessageHook0(void, SBAwayController, undimScreen) {
 166     Undim_(self);
 167     MSOldCall();
 168 }
 169
 170 MSInstanceMessageHook1(void, SBAwayController, undimScreen, BOOL, undim) {
 171     Undim_(self);
 172     MSOldCall(undim);
 173 }
 174
 175 static void Deactivate_(SBAwayController *self) {
 176     [[cydgets_ objectAtIndex:active_] disableCydget:self];
 177     active_ = 0;
 178 }
 179
 180 MSInstanceMessageHook1(void, SBAwayController, dimScreen, BOOL, dim) {
 181     Deactivate_([$SBAwayController sharedAwayController]);
 182     MSOldCall(dim);
 183 }
 184
 185 MSInstanceMessageHook1(void, SpringBoard, menuButtonDown, GSEventRef, event) {
 186     menu_ = true;
 187     MSOldCall(event);
 188 }
 189
 190 MSInstanceMessageHook1(void, SBAwayView, addGestureRecognizer, id, recognizer) {
 191     if (online_ == 0 || kCFCoreFoundationVersionNumber > 600)
 192         return MSOldCall(recognizer);
 193 }
 194
 195 MSInstanceMessageHook1(void, SBAwayWindow, sendGSEvent, GSEventRef, event) {
 196     if (online_ == 0 || kCFCoreFoundationVersionNumber > 600)
 197         return MSOldCall(event);
 198
 199     return MSSuperCall(event);
 200 }
 201
 202 #define Cydgets_ @"/System/Library/LockCydgets"
 203
 204 static void CydgetSetup() {
 205     NSString *plist([NSString stringWithFormat:@"%@/Library/Preferences/com.saurik.Cydget.plist", NSHomeDirectory()]);
 206     settings_ = [NSMutableDictionary dictionaryWithContentsOfFile:plist] ?: [NSMutableDictionary dictionary];
 207
 208     NSArray *cydgets([settings_ objectForKey:@"LockCydgets"] ?: [NSArray arrayWithObjects:[NSDictionary dictionaryWithObjectsAndKeys:
 209         @"Welcome", @"Name", [NSNumber numberWithBool:YES], @"Active", nil
 210     ], [NSDictionary dictionaryWithObjectsAndKeys:
 211         @"AwayView", @"Name", [NSNumber numberWithBool:YES], @"Active", nil
 212     ], nil]);
 213
 214     cydgets_ = [NSMutableArray arrayWithCapacity:4];
 215     for (NSDictionary *cydget in cydgets)
 216         if ([[cydget objectForKey:@"Active"] boolValue])
 217             if (NSDictionary *info = [NSDictionary dictionaryWithContentsOfFile:[NSString stringWithFormat:@"%@/%@.cydget/Info.plist", Cydgets_, [cydget objectForKey:@"Name"]]])
 218                 [cydgets_ addObject:info];
 219
 220     if ([cydgets_ count] == 0)
 221         cydgets_ = nil;
 222 }
 223
 224 // XXX: this could happen while it is unlocked
 225 MSInstanceMessageHook1(id, SBAwayView, initWithFrame, CGRect, frame) {
 226     self = MSOldCall(frame);
 227     CydgetSetup();
 228     [[cydgets_ objectAtIndex:active_] enableCydget:[$SBAwayController sharedAwayController]];
 229     return self;
 230 }
 231
 232 MSInstanceMessageHook1(void, SBAwayController, _finishedUnlockAttemptWithStatus, BOOL, status) {
 233     if (status)
 234         Deactivate_(self);
 235     MSOldCall(status);
 236 }
 237
 238 // this is called occasionally by -[SBAwayView updateInterface] and takes away our keyboard
 239 MSInstanceMessageHook0(void, SBAwayView, _fixupFirstResponder) {
 240     if (online_ == 0)
 241         return MSOldCall();
 242 }
 243
 244 MSInstanceMessageHook0(void, SBAwayView, updateInterface) {
 245     MSOldCall();
 246
 247     NSDictionary *cydget([cydgets_ objectAtIndex:active_]);
 248
 249     NSString *background([cydget objectForKey:@"CYBackground"]);
 250     if ([background isEqualToString:@"Wallpaper"]) {
 251         MSIvarHook(UIView *, _backgroundView);
 252         [_backgroundView setAlpha:1.0f];
 253     }
 254
 255     if ([[cydget objectForKey:@"CYShowDateTime"] boolValue])
 256         [self addDateView];
 257 }