C++ (Cpp) HTMLFormControlElement::setNeedsStyleRecalc示例

示例#1

文件： HTMLFormElement.cpp 项目： Comcast/WebKitForWayland

void HTMLFormElement::resetDefaultButton()
{
    if (!m_defaultButton) {
        // Computing the default button is not cheap, we don't want to do it unless needed.
        // If there was no default button set, the only style to invalidate is the element
        // being added to the form. This is done explicitely in registerFormElement().
        return;
    }

    HTMLFormControlElement* oldDefault = m_defaultButton;
    m_defaultButton = nullptr;
    defaultButton();
    if (m_defaultButton != oldDefault) {
        if (oldDefault)
            oldDefault->setNeedsStyleRecalc();
        if (m_defaultButton)
            m_defaultButton->setNeedsStyleRecalc();
    }
}