mgl_ui_event_default_delegate.h

[詳解]

// SPDX-License-Identifier: Zlib
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
 
#ifndef INCGUARD_MGL_UI_EVENT_DEFAULT_DELEGATE_H_1689319769
#define INCGUARD_MGL_UI_EVENT_DEFAULT_DELEGATE_H_1689319769
 
#include <mgl/math/mgl_rectangle.h>
#include <mgl/stl/mgl_stl_containers.h>
#include <mgl/ui/mgl_ui_event_delegate.h>
#include <mgl/ui/mgl_ui_input_scope.h>
 
namespace MGL::UI
{
 
class DefaultEventDelegate : public EventDelegate
{
public:
    ~DefaultEventDelegate() noexcept override = default;
 
    [[nodiscard]] virtual UserInputFlags OnUpdateUserInput() const noexcept;
 
    EventResult OnUpdateUIEvent(const STL::vector<EventTarget> &targets, EventID currentFocusID) noexcept final;
    static EventResult UpdateWithoutMove(const STL::vector<EventTarget> &targets, EventID currentFocusID, const InputScope &scope) noexcept;
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr void FocusRequests(EventID eventID) noexcept
    {
        _focusRequestID = eventID;
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr void SetScope(const InputScope &scope) noexcept
    {
        _scope = scope;
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr void SetEnabledMouseAndTouch(bool isEnabled) noexcept
    {
        _isEnabledMouseAndTouch = isEnabled;
    }
 
    void SetMoveTable(EventID target, const EventMoveTable &table) noexcept;
    EventMoveTable &GetMoveTable(EventID target) noexcept;
    [[nodiscard]] bool HasMoveTable(EventID target) const noexcept;
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr void SetFirstInputMoveTable(const EventMoveTable &table) noexcept
    {
        _firstInputMoveTable = table;
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr EventMoveTable &GetFirstInputMoveTable() noexcept
    {
        return _firstInputMoveTable;
    }
 
    void ClearTable() noexcept;
 
    static EventResult UpdateKeyInput(UserInputFlags input, const EventMoveTable &table) noexcept;
 
private:
    static EventResult UpdateMouseEvent(const STL::vector<EventTarget> &targets, EventID currentFocusID, const InputScope &scope) noexcept;
    static EventResult UpdateTouchEvent(const STL::vector<EventTarget> &targets, EventID currentFocusID, const InputScope &scope) noexcept;
 
    EventID _focusRequestID{kInvalidEventID};
    InputScope _scope;
 
    bool _isEnabledMouseAndTouch{false};
 
    STL::unordered_map<EventID, EventMoveTable> _moveTable;
    EventMoveTable _firstInputMoveTable;
};
}    // namespace MGL::UI
 
#endif    // INCGUARD_MGL_UI_EVENT_DEFAULT_DELEGATE_H_1689319769
 
// vim: et ts=4 sw=4 sts=4