mgl_ui_event_context.h

[詳解]

// SPDX-License-Identifier: Zlib
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
 
#ifndef INCGUARD_MGL_UI_EVENT_CONTEXT_H_1688694866
#define INCGUARD_MGL_UI_EVENT_CONTEXT_H_1688694866
 
#include <mgl/stl/mgl_stl_containers.h>
#include <mgl/ui/mgl_ui_event_default_delegate.h>
#include <mgl/ui/mgl_ui_event_defs.h>
 
namespace MGL::UI
{
class EventListener;
class EventDelegate;
 
class EventContext
{
public:
    EventContext(EventListener *listener) noexcept;
    EventContext(EventListener *listener, EventDelegate *delegate) noexcept;
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    void ClearTargets() noexcept
    {
        _targets.clear();
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    void AddTarget(const EventTarget &target) noexcept
    {
        _targets.push_back(target);
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr MGL::STL::vector<EventTarget> &GetTargets() noexcept
    {
        return _targets;
    }
 
    EventResult Update() noexcept;
 
    void SendEvent(const EventResult &result) noexcept;
 
private:
    EventListener *_listener;
    EventDelegate *_delegate;
    EventID _focusID{kInvalidEventID};
    MGL::STL::vector<EventTarget> _targets;
    DefaultEventDelegate _defaultDelegate;
};
}    // namespace MGL::UI
 
#endif    // INCGUARD_MGL_UI_EVENT_CONTEXT_H_1688694866
 
// vim: et ts=4 sw=4 sts=4