Add minimum viable product

.gitignore

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+.theos
+packages

Headers/CALayer.h

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+//
+//  CALayer.h
+//  ScreenShredder
+//
+//  Created by Spotlight Deveaux on 2021-11-14.
+//
+
+#ifndef CALayer_h
+#define CALayer_h
+
+@import QuartzCore;
+#import "CAState.h"
+
+@interface CALayer (PrivateDefinitions)
+@property(readonly) NSArray<CAState *> *_Nonnull states;
+@end
+
+#endif /* CALayer_h */

Headers/CAPackage.h

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+//
+//  CAPackage.h
+//  ScreenShredder
+//
+//  Created by Spotlight Deveaux on 2021-11-14.
+//
+
+#ifndef CAPackage_h
+#define CAPackage_h
+
+@import QuartzCore;
+
+extern NSString *_Nonnull kCAPackageTypeArchive;
+
+@interface CAPackage : NSObject
+
++ (CAPackage *_Nullable)packageWithContentsOfURL:(NSURL *_Nonnull)url
+                                            type:(NSString *_Nonnull)type
+                                         options:(NSDictionary *_Nullable)opts
+                                           error:(NSError *_Nullable *_Nullable)
+                                                     outError;
+
+- (NSArray<NSString *> *_Nonnull)publishedObjectNames;
+- (CALayer *_Nullable)publishedObjectWithName:(NSString *_Nonnull)name;
+
+@property(readonly, getter=isGeometryFlipped) BOOL geometryFlipped;
+@property(readonly) CALayer *_Nonnull rootLayer;
+
+@end
+
+#endif /* CAPackage_h */

Headers/CAState.h

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+//
+//  CAState.h
+//  ScreenShredder
+//
+//  Created by Spotlight Deveaux on 2021-11-14.
+//
+
+#ifndef CAState_h
+#define CAState_h
+
+@import QuartzCore;
+
+@interface CAState : NSObject
+
+// We most likely don't need to define its methods, as we use none directly.
+// Instead, we define this solely for type checking.
+// (I apologize if you were looking for them here.)
+
+@end
+
+#endif /* CAState_h */

Headers/CAStateController.h

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+//
+//  CAStateController.h
+//  ScreenShredder
+//
+//  Created by Spotlight Deveaux on 2021-11-14.
+//
+
+#ifndef CAStateController_h
+#define CAStateController_h
+
+@import QuartzCore;
+#import "CAState.h"
+
+@interface CAStateController : NSObject
+
+// TODO: Do we need to bother with delegates?
+//@property(__weak) NSObject *<CAStateControllerDelegate> delegate;
+//- (NSObject *<CAStateControllerDelegate>)delegate;
+//- (void)setDelegate:(NSObject *<CAStateControllerDelegate>)delegate;
+- (CALayer *_Nullable)layer;
+- (void)_removeTransition:(id _Nonnull)arg1 layer:(CALayer *_Nonnull)arg2;
+- (CAStateController *_Nonnull)initWithLayer:(CALayer *_Nonnull)layer;
+- (CAState *_Nonnull)stateOfLayer:(CALayer *_Nonnull)arg1;
+- (void)setState:(CAState *_Nonnull)state
+            ofLayer:(CALayer *_Nonnull)layer
+    transitionSpeed:(float)speed;
+- (void)setState:(CAState *_Nonnull)state ofLayer:(CALayer *_Nonnull)layer;
+- (void)setInitialStatesOfLayer:(CALayer *_Nonnull)layer
+                transitionSpeed:(float)speed;
+- (void)setInitialStatesOfLayer:(CALayer *_Nonnull)layer;
+
+// TODO: What type is id in the beneath here?
+- (id _Nonnull)removeAllStateChanges;
+- (void)restoreStateChanges:(id _Nonnull)arg1;
+- (void)cancelTimers;
+- (void)_nextStateTimer:(id _Nonnull)arg1;
+- (void)_addAnimation:(id _Nonnull)arg1
+               forKey:(id _Nonnull)arg2
+               target:(id _Nonnull)arg3
+                 undo:(id _Nonnull)arg4;
+@end
+
+#endif /* CAStateController_h */

Makefile

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+TARGET := iphone:clang:latest:6.1
+INSTALL_TARGET_PROCESSES = shoehorn
+
+include $(THEOS)/makefiles/common.mk
+
+APPLICATION_NAME = shoehorn
+shoehorn_ARCHS = armv7
+shoehorn_FILES = main.m SPAppDelegate.m SPRootViewController.m
+shoehorn_FRAMEWORKS = UIKit CoreGraphics PassKit
+shoehorn_CFLAGS = -fobjc-arc -I./Headers/
+
+include $(THEOS_MAKE_PATH)/application.mk

Resources/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleExecutable</key>
+	<string>shoehorn</string>
+	<key>CFBundleIcons</key>
+	<dict>
+		<key>CFBundlePrimaryIcon</key>
+		<dict>
+			<key>CFBundleIconFiles</key>
+			<array>
+				<string>AppIcon29x29</string>
+				<string>AppIcon40x40</string>
+				<string>AppIcon57x57</string>
+				<string>AppIcon60x60</string>
+			</array>
+			<key>UIPrerenderedIcon</key>
+			<true/>
+		</dict>
+	</dict>
+	<key>CFBundleIcons~ipad</key>
+	<dict>
+		<key>CFBundlePrimaryIcon</key>
+		<dict>
+			<key>CFBundleIconFiles</key>
+			<array>
+				<string>AppIcon29x29</string>
+				<string>AppIcon40x40</string>
+				<string>AppIcon57x57</string>
+				<string>AppIcon60x60</string>
+				<string>AppIcon50x50</string>
+				<string>AppIcon72x72</string>
+				<string>AppIcon76x76</string>
+			</array>
+			<key>UIPrerenderedIcon</key>
+			<true/>
+		</dict>
+	</dict>
+	<key>CFBundleIdentifier</key>
+	<string>space.joscomputing.spacehorn</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleSupportedPlatforms</key>
+	<array>
+		<string>iPhoneOS</string>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIDeviceFamily</key>
+	<array>
+		<integer>1</integer>
+		<integer>2</integer>
+	</array>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UILaunchImageFile</key>
+	<string>LaunchImage</string>
+	<key>UILaunchImages</key>
+	<array>
+		<dict>
+			<key>UILaunchImageMinimumOSVersion</key>
+			<string>7.0</string>
+			<key>UILaunchImageName</key>
+			<string>LaunchImage</string>
+			<key>UILaunchImageOrientation</key>
+			<string>Portrait</string>
+			<key>UILaunchImageSize</key>
+			<string>{320, 480}</string>
+		</dict>
+		<dict>
+			<key>UILaunchImageMinimumOSVersion</key>
+			<string>7.0</string>
+			<key>UILaunchImageName</key>
+			<string>LaunchImage-700-568h</string>
+			<key>UILaunchImageOrientation</key>
+			<string>Portrait</string>
+			<key>UILaunchImageSize</key>
+			<string>{320, 568}</string>
+		</dict>
+		<dict>
+			<key>UILaunchImageMinimumOSVersion</key>
+			<string>7.0</string>
+			<key>UILaunchImageName</key>
+			<string>LaunchImage-Portrait</string>
+			<key>UILaunchImageOrientation</key>
+			<string>Portrait</string>
+			<key>UILaunchImageSize</key>
+			<string>{768, 1024}</string>
+		</dict>
+		<dict>
+			<key>UILaunchImageMinimumOSVersion</key>
+			<string>7.0</string>
+			<key>UILaunchImageName</key>
+			<string>LaunchImage-Landscape</string>
+			<key>UILaunchImageOrientation</key>
+			<string>Landscape</string>
+			<key>UILaunchImageSize</key>
+			<string>{768, 1024}</string>
+		</dict>
+		<dict>
+			<key>UILaunchImageMinimumOSVersion</key>
+			<string>8.0</string>
+			<key>UILaunchImageName</key>
+			<string>LaunchImage-800-667h</string>
+			<key>UILaunchImageOrientation</key>
+			<string>Portrait</string>
+			<key>UILaunchImageSize</key>
+			<string>{375, 667}</string>
+		</dict>
+		<dict>
+			<key>UILaunchImageMinimumOSVersion</key>
+			<string>8.0</string>
+			<key>UILaunchImageName</key>
+			<string>LaunchImage-800-Portrait-736h</string>
+			<key>UILaunchImageOrientation</key>
+			<string>Portrait</string>
+			<key>UILaunchImageSize</key>
+			<string>{414, 736}</string>
+		</dict>
+		<dict>
+			<key>UILaunchImageMinimumOSVersion</key>
+			<string>8.0</string>
+			<key>UILaunchImageName</key>
+			<string>LaunchImage-800-Landscape-736h</string>
+			<key>UILaunchImageOrientation</key>
+			<string>Landscape</string>
+			<key>UILaunchImageSize</key>
+			<string>{414, 736}</string>
+		</dict>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

SPAppDelegate.h

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+@import UIKit;
+
+@interface SPAppDelegate : UIResponder <UIApplicationDelegate>
+
+@property(nonatomic, strong) UIWindow *window;
+@property(nonatomic, strong) UINavigationController *rootViewController;
+
+@end

SPAppDelegate.m

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+#import "SPAppDelegate.h"
+#import "SPRootViewController.h"
+@import UIKit;
+@import QuartzCore;
+
+@implementation SPAppDelegate
+
+- (void)applicationDidFinishLaunching:(UIApplication *)application {
+  _window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
+  _rootViewController = [[UINavigationController alloc]
+      initWithRootViewController:[[SPRootViewController alloc] init]];
+  _window.rootViewController = _rootViewController;
+  [_window makeKeyAndVisible];
+}
+
+@end

SPRootViewController.h

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+@import UIKit;
+
+@interface SPRootViewController : UIViewController
+- (CGImageRef)getImage:(NSString *)named;
+@end

SPRootViewController.m

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+#import "SPRootViewController.h"
+
+#import "CALayer.h"
+#import "CAPackage.h"
+#import "CAState.h"
+#import "CAStateController.h"
+
+@interface SPRootViewController ()
+- (CGImageRef)getImage:(NSString *)named;
+@end
+
+@implementation SPRootViewController
+
+- (void)loadView {
+  [super loadView];
+
+  // Let's get this party started! Load our package.
+  NSURL *caarPath = [[NSBundle bundleForClass:NSClassFromString(@"PKPass")]
+      URLForResource:@"ShredderSheet"
+       withExtension:@"caar"];
+  CAPackage *package = [CAPackage packageWithContentsOfURL:caarPath
+                                                      type:kCAPackageTypeArchive
+                                                   options:nil
+                                                     error:nil];
+
+  // Determine the frame of the unarchived root layer.
+  CALayer *rootLayer = [package rootLayer];
+  CGRect rootLayerFrame = [rootLayer frame];
+
+  // We can create a new view to harass.
+  // Exhilerating!
+  UIView *layerView = [[UIView alloc] initWithFrame:rootLayerFrame];
+  [[layerView layer] addSublayer:rootLayer];
+  [self.view addSubview:layerView];
+
+  // Ensure our package's root layer does similar, I... think.
+  [[package publishedObjectWithName:@"Root"] setFrame:rootLayerFrame];
+
+  // Oh, our very own state controller!
+  // We've grown up so quickly.
+  CAStateController *stateController =
+      [[CAStateController alloc] initWithLayer:rootLayer];
+
+  // Configure our initial state.
+  CAState *shreddingState = [[rootLayer states] objectAtIndex:2];
+
+  [stateController setInitialStatesOfLayer:rootLayer];
+  [stateController setState:shreddingState
+                    ofLayer:rootLayer
+            transitionSpeed:1.0f];
+
+  // Have our wonderful, extremely 2011/2012-esque metal design.
+  // It's local! There's no reason not to.
+  [[package publishedObjectWithName:@"shredderFront"]
+      setContents:(id)[self getImage:@"ShredderMetal"]];
+  [[package publishedObjectWithName:@"shredderBack"]
+      setContents:(id)[self getImage:@"ShredderMetal"]];
+
+  // Set what we're shredding.
+  [[package publishedObjectWithName:@"cardFrontUnshredded"]
+      setContents:(id)[[UIColor redColor] CGColor]];
+  [[package publishedObjectWithName:@"cardFrontShredded"]
+      setContents:(id)[[UIColor blueColor] CGColor]];
+  [[package publishedObjectWithName:@"cardBackUnshredded"]
+      setContents:(id)[[UIColor blueColor] CGColor]];
+}
+
+- (CGImageRef)getImage:(NSString *)named {
+  NSBundle *passKitBundle =
+      [NSBundle bundleForClass:NSClassFromString(@"PKPass")];
+  NSString *filename = [NSString stringWithFormat:@"%@@2x", named];
+  NSString *path = [passKitBundle pathForResource:filename ofType:@"png"];
+
+  UIImage *image = [UIImage imageWithContentsOfFile:path];
+  return [image CGImage];
+}
+
+@end

control

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+Package: space.joscomputing.spacehorn
+Name: shoehorn
+Version: 0.0.1
+Architecture: iphoneos-arm
+Description: An awesome application!
+Maintainer: Spotlight Deveaux
+Author: Spotlight Deveaux
+Section: Utilities

main.m

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+#import "SPAppDelegate.h"
+#import <Foundation/Foundation.h>
+
+int main(int argc, char *argv[]) {
+  @autoreleasepool {
+    return UIApplicationMain(argc, argv, nil,
+                             NSStringFromClass(SPAppDelegate.class));
+  }
+}