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[winterboard.git] / Application.mm

/* WinterBoard - Theme Manager for the iPhone
 * Copyright (C) 2008-2009  Jay Freeman (saurik)
*/

/*
 *        Redistribution and use in source and binary
 * forms, with or without modification, are permitted
 * provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the
 *    above copyright notice, this list of conditions
 *    and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions
 *    and the following disclaimer in the documentation
 *    and/or other materials provided with the
 *    distribution.
 * 3. The name of the author may not be used to endorse
 *    or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#import <Foundation/Foundation.h>
#import <CoreGraphics/CGGeometry.h>
#import <UIKit/UIKit.h>

#include <objc/objc-runtime.h>

#import <Preferences/PSRootController.h>
#import <Preferences/PSViewController.h>
#import <Preferences/PSListController.h>
#import <Preferences/PSSpecifier.h>

#include <substrate.h>
#include <mach-o/dyld.h>

static NSBundle *wbSettingsBundle;
static Class $WBSettingsController;

@interface UIApplication (Private)
- (void) terminateWithSuccess;
@end

@interface UIDevice (Private)
- (BOOL) isWildcat;
@end

@interface PSRootController (Compatibility)
- (id) _popController; // < 3.2
- (id) contentView; // < 3.2
- (id) lastController; // < 3.2
- (id) topViewController; // >= 3.2
@end

@interface PSListController (Compatibility)
- (void) viewWillBecomeVisible:(void *)specifier; // < 3.2
- (void) viewWillAppear:(BOOL)a; // >= 3.2
- (void) setSpecifier:(PSSpecifier *)spec; // >= 3.2
@end

@interface WBRootController : PSRootController {
    PSListController *_rootListController;
}

@property (readonly) PSListController *rootListController;

- (void) setupRootListForSize:(CGSize)size;
- (id) topViewController;
@end

@implementation WBRootController

@synthesize rootListController = _rootListController;

// < 3.2
- (void) setupRootListForSize:(CGSize)size {
    PSSpecifier *spec([[PSSpecifier alloc] init]);
    [spec setTarget:self];
    spec.name = @"WinterBoard";

    _rootListController = [[$WBSettingsController alloc] initForContentSize:size];
    _rootListController.rootController = self;
    _rootListController.parentController = self;
    [_rootListController viewWillBecomeVisible:spec];

    [spec release];

    [self pushController:_rootListController];
}

// >= 3.2
- (void) loadView {
    [super loadView];
    [self pushViewController:[self rootListController] animated:NO];
}

- (PSListController *) rootListController {
    if(!_rootListController) {
        PSSpecifier *spec([[PSSpecifier alloc] init]);
        [spec setTarget:self];
        spec.name = @"WinterBoard";
        _rootListController = [[$WBSettingsController alloc] initForContentSize:CGSizeZero];
        _rootListController.rootController = self;
        _rootListController.parentController = self;
        [_rootListController setSpecifier:spec];
        [spec release];
    }
    return _rootListController;
}

- (id) contentView {
    if ([[PSRootController class] instancesRespondToSelector:@selector(contentView)]) {
        return [super contentView];
    } else {
        return [super view];
    }
}

- (id) topViewController {
    if ([[PSRootController class] instancesRespondToSelector:@selector(topViewController)]) {
        return [super topViewController];
    } else {
        return [super lastController];
    }
}

- (void) _popController {
    // Pop the last controller = exit the application.
    // The only time the last controller should pop is when the user taps Respring/Cancel.
    // Which only gets displayed if the user has made changes.
    if ([self topViewController] == _rootListController)
        [[UIApplication sharedApplication] terminateWithSuccess];
    [super _popController];
}

@end

@interface WBApplication : UIApplication {
    WBRootController *_rootController;
}

@end

@implementation WBApplication

- (void) dealloc {
    [_rootController release];
    [super dealloc];
}

- (void) applicationWillTerminate:(UIApplication *)application {
    [_rootController.rootListController suspend];
}

- (void) applicationDidFinishLaunching:(id)unused {
    wbSettingsBundle = [NSBundle bundleWithPath:@"/System/Library/PreferenceBundles/WinterBoardSettings.bundle"];
    [wbSettingsBundle load];
    $WBSettingsController = [wbSettingsBundle principalClass];

    CGRect applicationFrame(([UIDevice instancesRespondToSelector:@selector(isWildcat)]
                         && [[UIDevice currentDevice] isWildcat]) || objc_getClass("UIStatusBar") != nil
                          ? [UIScreen mainScreen].bounds
                          : [UIScreen mainScreen].applicationFrame);
    UIWindow *window([[UIWindow alloc] initWithFrame:applicationFrame]);
    _rootController = [[WBRootController alloc] initWithTitle:@"WinterBoard" identifier:[[NSBundle mainBundle] bundleIdentifier]];
    [window addSubview:[_rootController contentView]];
    [window makeKeyAndVisible];
}

@end

MSHook(int32_t, NSVersionOfLinkTimeLibrary, const char *name) {
    if (strcmp(name, "UIKit") == 0)
        return 0x6400000;
    return _NSVersionOfLinkTimeLibrary(name);
}

int main(int argc, char *argv[]) {
    NSAutoreleasePool *pool( [[NSAutoreleasePool alloc] init]);

    MSHookFunction(NSVersionOfLinkTimeLibrary, MSHake(NSVersionOfLinkTimeLibrary));

    int value = UIApplicationMain(argc, argv, @"WBApplication", @"WBApplication");

    [pool release];
    return value;
}