event_dispatcher.hpp

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#ifndef NEFORCE_TUI_EVENT_DISPATCHER_HPP__
#define NEFORCE_TUI_EVENT_DISPATCHER_HPP__

 
#include "NeForce/core/functional/function.hpp"
#include "NeForce/tui/events.hpp"
#include "NeForce/tui/focus_manager.hpp"
#include "NeForce/tui/renderer.hpp"
NEFORCE_BEGIN_NAMESPACE__
NEFORCE_BEGIN_TUI__


class NEFORCE_API event_dispatcher {
public:
    explicit event_dispatcher(focus_manager& fm);

    bool dispatch_key(const key_event& e, component_base* root);

    bool dispatch_mouse(const mouse_event& e, component_base* root, const vector<layout_rect>& layout,
                        const element& tree, const vector<scrollbar_hit>& hits);

    void set_dirty_callback(function<void()> cb) { mark_dirty_ = move(cb); }
 
private:
    struct scroll_drag_state {
        state<int>* scroll_state = nullptr;
        int anchor_position = 0;
        int anchor_value = 0;
        bool vertical = false;
    };
 
    focus_manager& focus_mgr_;
    component_base* last_mouse_target_ = nullptr;
    scroll_drag_state drag_state_storage_;
    scroll_drag_state* drag_state_ = nullptr;
    function<void()> mark_dirty_;
};
 // TUI
 
NEFORCE_END_TUI__
NEFORCE_END_NAMESPACE__
#endif // NEFORCE_TUI_EVENT_DISPATCHER_HPP__