Method process_key_event

platform/android/android_input_handler.cpp:69–142

}

void AndroidInputHandler::process_key_event(int p_physical_keycode, int p_unicode, int p_key_label, bool p_pressed, bool p_echo) {
	static char32_t prev_wc = 0;
	char32_t unicode = p_unicode;
	if ((p_unicode & 0xfffffc00) == 0xd800) {
		if (prev_wc != 0) {
			ERR_PRINT("invalid utf16 surrogate input");
		}
		prev_wc = unicode;
		return; // Skip surrogate.
	} else if ((unicode & 0xfffffc00) == 0xdc00) {
		if (prev_wc == 0) {
			ERR_PRINT("invalid utf16 surrogate input");
			return; // Skip invalid surrogate.
		}
		unicode = (prev_wc << 10UL) + unicode - ((0xd800 << 10UL) + 0xdc00 - 0x10000);
		prev_wc = 0;
	} else {
		prev_wc = 0;
	}

	Ref<InputEventKey> ev;
	ev.instantiate();

	Key physical_keycode = godot_code_from_android_code(p_physical_keycode);
	Key keycode;
	if (unicode == '\b') { // 0x08
		keycode = Key::BACKSPACE;
	} else if (unicode == '\t') { // 0x09
		keycode = Key::TAB;
	} else if (unicode == '\n') { // 0x0A
		keycode = Key::ENTER;
	} else if (unicode == 0x1B) {
		keycode = Key::ESCAPE;
	} else if (unicode == 0x1F) {
		keycode = Key::KEY_DELETE;
	} else {
		keycode = fix_keycode(unicode, physical_keycode);
	}

	switch (physical_keycode) {
		case Key::SHIFT: {
			shift_mem = p_pressed;
		} break;
		case Key::ALT: {
			alt_mem = p_pressed;
		} break;
		case Key::CTRL: {
			control_mem = p_pressed;
		} break;
		case Key::META: {
			meta_mem = p_pressed;
		} break;
		default:
			break;
	}

	ev->set_keycode(keycode);
	ev->set_physical_keycode(physical_keycode);