Method HandleMessage

src/openrct2-ui/TextComposition.cpp:108–246

}

void TextComposition::HandleMessage(const SDL_Event* e)
{
    auto& console = GetInGameConsole();

    switch (e->type)
    {
        case SDL_TEXTEDITING:
            // When inputting Korean characters, `edit.length` is always zero
            String::set(_imeBuffer, sizeof(_imeBuffer), e->edit.text);
            _imeStart = e->edit.start;
            _imeLength = e->edit.length;
            _imeActive = ((e->edit.length != 0 || String::sizeOf(e->edit.text) != 0) && _imeBuffer[0] != '\0');
            break;
        case SDL_TEXTINPUT:
            // will receive an `SDL_TEXTINPUT` event when a composition is committed
            _imeActive = false;
            _imeBuffer[0] = '\0';
            if (_session.Buffer != nullptr)
            {
                // HACK ` will close console, so don't input any text
                if (e->text.text[0] == '`' && console.IsOpen())
                {
                    break;
                }

                Insert(e->text.text);

                console.RefreshCaret(_session.SelectionStart);
                Windows::WindowUpdateTextbox();
            }
            break;
        case SDL_KEYDOWN:
        {
            if (_imeActive)
            {
                break;
            }

            uint16_t modifier = e->key.keysym.mod;
            SDL_Keycode rawKey = e->key.keysym.sym;
            SDL_Scancode rawScancode = e->key.keysym.scancode;

            auto [key, scancode] = ProcessKeyPress(rawKey, rawScancode);

            GetContext()->GetUiContext().SetKeysPressed(key, scancode);

            // Text input
            if (_session.Buffer == nullptr)
            {
                break;
            }

            switch (key)
            {
                case SDLK_BACKSPACE:
                    // If backspace and we have input text with a cursor position nonzero
                    if (_session.SelectionStart > 0)
                    {