C++ (Cpp) LayoutObject::invalidateDisplayItemClientForNonCompositingDescendants示例

示例#1

文件： LayoutTheme.cpp 项目： smishenk/chromium-crosswalk

bool LayoutTheme::controlStateChanged(LayoutObject& o, ControlState state) const
{
    if (!o.styleRef().hasAppearance())
        return false;

    // Default implementation assumes the controls don't respond to changes in :hover state
    if (state == HoverControlState && !supportsHover(o.styleRef()))
        return false;

    // Assume pressed state is only responded to if the control is enabled.
    if (state == PressedControlState && !isEnabled(&o))
        return false;

    o.setShouldDoFullPaintInvalidation();
    if (RuntimeEnabledFeatures::slimmingPaintEnabled())
        o.invalidateDisplayItemClientForNonCompositingDescendants();
    return true;
}