Method enableIME

core/ui/UITextFieldEx.cpp:362–446

}

void TextFieldEx::enableIME(Node* control)
{
    if (_touchListener != nullptr)
    {
        return;
    }
    _touchListener = EventListenerTouchOneByOne::create();

    // this->getContentSize() == Vec2::ZERO, so we need to use the size of _renderLabel;
    if(control == nullptr)
        control = this->_renderLabel;

    _touchListener->onTouchBegan = [control,this](Touch* touch, Event*) {
        bool focus = (_checkVisibility(this) && _editable && this->_enabled &&
                      _containsTouchPoint(control, touch));

        if (this->_continuousTouchDelayTimerID != nullptr)
        {
            stimer::kill(this->_continuousTouchDelayTimerID);
            this->_continuousTouchDelayTimerID = nullptr;
        }

        if (focus && _cursorVisible)
        {
            auto worldPoint = touch->getLocation();
            if (this->_continuousTouchCallback)
            {
                this->_continuousTouchDelayTimerID = stimer::delay(
                    this->_continuousTouchDelayTime, [=, this]() { this->_continuousTouchCallback(worldPoint); });
            }
        }
        return true;
    };
    _touchListener->onTouchEnded = [control, this](Touch* touch, Event* e) {
        if (this->_continuousTouchDelayTimerID != nullptr)
        {
            stimer::kill(this->_continuousTouchDelayTimerID);
            this->_continuousTouchDelayTimerID = nullptr;
        }

        bool focus = (_checkVisibility(this) && _editable && this->_enabled &&
                      _containsTouchPoint(control, touch));

        if (focus)
        {
            if (!s_keyboardVisible || !_cursorVisible)
                openIME();
            if (_touchCursorControlEnabled)
            {
                auto renderLabelPoint = _renderLabel->convertToNodeSpace(touch->getLocation());
                __moveCursorTo(renderLabelPoint.x);
            }
        }
        else
        {
            closeIME();
        }
    };