events.c

#define GL_SILENCE_DEPRECATION
/*
	Based on: https://github.com/gammasoft71/Examples_Cocoa/blob/master/src/Applications/ApplicationWithMessageLoop/README.md
*/
#define SILICON_IMPLEMENTATION
#include <silicon.h>

#define KEY_Q 12 // From the "https://boredzo.org/blog/wp-content/uploads/2007/05/imtx-virtual-keycodes.png" image.

const char* NSEventTypeToChar(NSEventType eventType);
const char* NSEventModifierFlagsToChar(NSEventModifierFlags modifierFlags);

NSApplication* NSApp;

int main(int argc, char* argv[]) {
	NSApp = NSApplication_sharedApplication();

	NSWindow* window1 = NSWindow_init(NSMakeRect(100, 100, 300, 300), NSWindowStyleMaskTitled | NSWindowStyleMaskClosable | NSWindowStyleMaskMiniaturizable | NSWindowStyleMaskResizable, NSBackingStoreBuffered, false);
	NSWindow_setIsVisible(window1, true);

	NSApplication_setActivationPolicy(NSApp, NSApplicationActivationPolicyRegular);
	NSApplication_finishLaunching(NSApp);

	while (true) {
		NSEvent* event = NSApplication_nextEventMatchingMask(NSApp, NSEventMaskAny, NSDate_distantFuture(), NSDefaultRunLoopMode, true);
		
		// We have to check if the user is even pressing anything in the first place, otherwise the program will crash!
		if (NSEvent_type(event) == NSEventTypeKeyDown && NSEvent_keyCode(event) == KEY_Q)
			break;
		
		printf("Event [type=%s location={%f, %f} modifierFlags={%s}]\n", NSEventTypeToChar(NSEvent_type(event)), NSEvent_locationInWindow(event).x, NSEvent_locationInWindow(event).y, NSEventModifierFlagsToChar(NSEvent_modifierFlags(event)));

		NSApplication_sendEvent(NSApp, event);
		NSApplication_updateWindows(NSApp);
  	}
}

const char* NSEventTypeToChar(NSEventType eventType) {
  	switch (eventType) {
		case NSEventTypeLeftMouseDown: return "LeftMouseDown";
		case NSEventTypeLeftMouseUp: return "LeftMouseUp";
		case NSEventTypeRightMouseDown: return "RightMouseDown";
		case NSEventTypeRightMouseUp: return "RightMouseUp";
		case NSEventTypeMouseMoved: return "MouseMoved";
		case NSEventTypeLeftMouseDragged: return "LeftMouseDragged";
		case NSEventTypeRightMouseDragged: return "RightMouseDragged";
		case NSEventTypeMouseEntered: return "MouseEntered";
		case NSEventTypeMouseExited: return "MouseExited";
		case NSEventTypeKeyDown: return "KeyDown";
		case NSEventTypeKeyUp: return "KeyUp";
		case NSEventTypeFlagsChanged: return "FlagsChanged";
		case NSEventTypeAppKitDefined: return "AppKitDefined";
		case NSEventTypeSystemDefined: return "SystemDefined";
		case NSEventTypeApplicationDefined: return "ApplicationDefined";
		case NSEventTypePeriodic: return "Periodic";
		case NSEventTypeCursorUpdate: return "CursorUpdate";
		case NSEventTypeScrollWheel: return "ScrollWheel";
		case NSEventTypeTabletPoint: return "TabletPoint";
		case NSEventTypeTabletProximity: return "TabletProximity";
		case NSEventTypeOtherMouseDown: return "OtherMouseDown";
		case NSEventTypeOtherMouseUp: return "OtherMouseUp";
		case NSEventTypeOtherMouseDragged: return "OtherMouseDragged";
		default: return "N/A";
 	}
}

char* ns_strcat(register char *s, register const char *append) {
	char *save = s;

	for (; *s; ++s);
	while ((*s++ = *append++));
	return(save);
}

const char* NSEventModifierFlagsToChar(NSEventModifierFlags modifierFlags) {
	static char result[100];
	if ((modifierFlags & NSEventModifierFlagCapsLock) == NSEventModifierFlagCapsLock) ns_strcat(result, "CapsLock, ");
	if ((modifierFlags & NSEventModifierFlagShift) == NSEventModifierFlagShift) ns_strcat(result, "NShift, ");
	if ((modifierFlags & NSEventModifierFlagControl) == NSEventModifierFlagControl) ns_strcat(result, "Control, ");
	if ((modifierFlags & NSEventModifierFlagOption) == NSEventModifierFlagOption) ns_strcat(result, "Option, ");
	if ((modifierFlags & NSEventModifierFlagCommand) == NSEventModifierFlagCommand) ns_strcat(result, "Command, ");
	if ((modifierFlags & NSEventModifierFlagNumericPad) == NSEventModifierFlagNumericPad) ns_strcat(result, "NumericPad, ");
	if ((modifierFlags & NSEventModifierFlagHelp) == NSEventModifierFlagHelp) ns_strcat(result, "Help, ");
	if ((modifierFlags & NSEventModifierFlagFunction) == NSEventModifierFlagFunction) ns_strcat(result, "Function, ");

	return result;
}