ConfirmView.h

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#pragma once
 
#include "cdc_ui/IView.h"
#include <cstdint>
 
namespace cdc::ui {

class ConfirmView : public ViewBase {
public:
    enum class Icon : uint8_t {
        NONE = 0,
        QUESTION,
        WARNING,
        ERROR
    };
 
    using ConfirmCallback = void(*)(void* userData);
    using CancelCallback = void(*)(void* userData);

    void init(const char* message, Icon icon = Icon::QUESTION);

    void setOnConfirm(ConfirmCallback callback, void* userData = nullptr) {
        onConfirm_ = callback;
        confirmUserData_ = userData;
    }

    void setOnCancel(CancelCallback callback, void* userData = nullptr) {
        onCancel_ = callback;
        cancelUserData_ = userData;
    }
 
    // IView implementation
    void render(bool partial) override;
    InputResult onKey(char key) override;
    const char* getName() const override { return "ConfirmView"; }
    const char* getFooterHint() const override { return "Y=OK  N=Abbruch"; }
 
private:
    static constexpr uint16_t MAX_MSG_LEN = 96;
    static constexpr int BOX_WIDTH = 220;
    static constexpr int BOX_HEIGHT = 60;
 
    char message_[MAX_MSG_LEN] = {};
    Icon icon_ = Icon::QUESTION;
    ConfirmCallback onConfirm_ = nullptr;
    CancelCallback onCancel_ = nullptr;
    void* confirmUserData_ = nullptr;
    void* cancelUserData_ = nullptr;
};
 
// ============================================================================
// Convenience Functions
// ============================================================================

void showConfirm(const char* message,
                 ConfirmView::ConfirmCallback onConfirm,
                 ConfirmView::CancelCallback onCancel = nullptr,
                 ConfirmView::Icon icon = ConfirmView::Icon::QUESTION,
                 void* userData = nullptr);

inline void askConfirm(const char* message, ConfirmView::ConfirmCallback onYes, void* userData = nullptr) {
    showConfirm(message, onYes, nullptr, ConfirmView::Icon::QUESTION, userData);
}
 
} // namespace cdc::ui