Method AddMonitor

core/graphics/tooltip/TooltipController.h:22–22

    ~ToolTipController();

    void AddMonitor(ToolTipMarkerItemsCallback callback) { actionListeners_.push_back(callback); }

    void Clear() { toolTip_ = nullptr; toolTips_.clear(); configs_.clear(); }
    bool isTooltips() { return configs_.size() > 0; }