tweak-fnmac — FnMacTweak without CydiaSubstrate

Drop-in replacement for ../FnMacTweak/. Same feature set, same UI, same keybinds logic. The only difference is no Logos, no CydiaSubstrate / ellekit dependency:

Original (CydiaSubstrate)	This version
.xm (Logos preprocessor)	.mm (plain Objective-C++)
%hook ClassName … %end	method_setImplementation via FnSwizzle.h
%orig(args)	typed IMP pointer orig_Class_method(self, _cmd, args)
%ctor { … }	__attribute__((constructor))
Depends: mobilesubstrate	no runtime deps beyond the iOS frameworks

fishhook is used exactly as upstream (libc symbol rebinds for sysctl / sysctlbyname / _availability_version_check).

Layout

tweak-fnmac/
├── Makefile                 targets .mm, no substrate -lsubstrate
├── FnMacTweak.plist         filter on com.apple.springboard (unchanged)
├── control                  package metadata
├── README.md
├── lib/
│   ├── fishhook.c           verbatim from upstream
│   └── fishhook.h
└── src/
    ├── FnSwizzle.h          tiny header-only helpers:
    │                        FNSwizzleInstance / FNSwizzleClass
    ├── Tweak.mm             ex-Tweak.xm; every %hook block rewritten
    │                        as static C swizzle functions + IMP
    │                        storage, installed in the constructor
    ├── FnOverlayWindow.{h,m}  copy
    ├── globals.{h,m}          copy
    ├── ue_reflection.{h,m}    copy
    └── views/
        ├── popupViewController.{h,m}
        └── welcomeViewController.{h,m}

Hook conversion

For every %hook Cls block, the pattern is:

// 1. IMP typedef matching the selector signature.
typedef ReturnType (*Cls_method_IMP)(id, SEL, Arg1Type, Arg2Type);
static Cls_method_IMP orig_Cls_method;

// 2. Swizzle body. Call the original like you would have called %orig.
static ReturnType swz_Cls_method(id self, SEL _cmd,
                                  Arg1Type a1, Arg2Type a2) {
    // ... same body as inside the original %hook ...
    return orig_Cls_method(self, _cmd, a1, a2);
}

// 3. Install in the constructor (FnSwizzle.h inlines the boilerplate).
FNSwizzleInstance("Cls", @selector(method:arg2:),
                  (IMP)swz_Cls_method,
                  (IMP *)&orig_Cls_method);

Classes swizzled (every one was a %hook in the original):

Class	Methods
GCExtendedGamepad	leftThumbstickButton, _leftThumbstickButton, rightThumbstickButton, _rightThumbstickButton
GCController	productCategory, vendorName
NSWindow	makeKeyAndOrderFront:
GCMouseInput	setMouseMovedHandler:
GCControllerDirectionPad	setValueChangedHandler:
GCKeyboardInput	setKeyChangedHandler:
IOSViewController	prefersPointerLocked
UIScreen	maximumFramesPerSecond
UITouch	type
UIWindow	sendEvent:
GCControllerButtonInput	setPressedChangedHandler:, setValueChangedHandler:, isPressed, value, setValue:, setPressed:, pressed

One installer function fnmac_install_swizzles() at the top of the constructor registers all of them; if any class/selector is missing at runtime the helper just logs and skips (robust to iOS version drift).

Build

export THEOS=~/theos
cd tweak-fnmac
make package install

Output .deb goes in packages/. Theos package scheme is rootless so it fits alongside all the other tweaks in this repo.