TextInputSession.hpp

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// Copyright 2026 Jan Niklas Hasse <jhasse@bixense.com>
// For conditions of distribution and use, see copyright notice in LICENSE.txt
#pragma once
 
#include "Rect.hpp"
 
#include <cstdint>
#include <memory>
#include <string>
#include <vector>
 
namespace jngl {
 
namespace internal {
void feedTextInput(const std::string& utf8);
void reapplyTextInputSession();
void reapplyTextInputArea();
void ensureLegacyTextInputStarted();
} // namespace internal
 
enum class TextInputType : uint8_t {
    Text,
    Password,
    Number,
    Email,
};
 
class TextInputSession {
public:
    explicit TextInputSession(TextInputType type = TextInputType::Text);
 
    TextInputSession(const TextInputSession&) = delete;
    TextInputSession& operator=(const TextInputSession&) = delete;
    TextInputSession(TextInputSession&&) noexcept;
    TextInputSession& operator=(TextInputSession&&) noexcept;
    ~TextInputSession();
 
    std::string take();
 
    void setInputArea(Rect area, double cursor = 0);
 
private:
    struct Impl;
    std::unique_ptr<Impl> impl;
 
    static void applyActive();
 
    static void applyArea();
 
    static std::vector<Impl*> stack;
    static bool legacyStarted;
 
    friend void internal::feedTextInput(const std::string&);
    friend void internal::reapplyTextInputSession();
    friend void internal::reapplyTextInputArea();
    friend void internal::ensureLegacyTextInputStarted();
};
 
} // namespace jngl