khodowany
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
#pragma once
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#include <chrono>
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#include <cstdint>
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#include <deque>
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#include <expected>
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#include <functional>
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#include <memory>
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#include <optional>
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#include <string>
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#include <vector>
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#include <modulus.hpp>
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#include <luma/control.hpp>
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namespace luma {
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enum class dialog_result {
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NONE,
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ACCEPTED,
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CANCELED,
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};
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struct dialog_options {
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std::string title{};
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std::unique_ptr<luma::control> body{};
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std::string accept_text{"OK"};
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std::string cancel_text{"Cancel"};
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std::function<void(luma::dialog_result)> on_close{};
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};
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struct toast {
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std::string message{};
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std::chrono::milliseconds duration{2500};
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};
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class overlay_host final : public luma::control {
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public:
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auto show_dialog(luma::dialog_options options) -> std::expected<void, modulus::error>;
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auto close_dialog(luma::dialog_result result) -> std::expected<void, modulus::error>;
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auto show_toast(luma::toast toast) -> std::expected<void, modulus::error>;
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auto tick(std::chrono::steady_clock::duration delta) -> std::bool_t;
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auto measure(luma::draw_context &context, luma::theme const &theme, luma::constraints limits) -> luma::size override;
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auto arrange(luma::rect bounds) -> void override;
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auto draw(luma::draw_context &context, luma::theme const &theme) const -> void override;
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auto handle_touch(luma::touch_event const &event) -> std::bool_t override;
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auto invalidate_layout() -> void override;
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auto bind_layout_invalidator(std::function<void()> invalidator) -> void override;
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private:
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friend auto overlays(std::unique_ptr<luma::control> content) -> std::expected<std::unique_ptr<luma::overlay_host>, modulus::error>;
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explicit overlay_host(std::unique_ptr<luma::control> content);
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auto begin_traversal() const -> void;
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auto end_traversal() const -> void;
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auto retire_dialog_body(std::unique_ptr<luma::control> body) -> void;
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auto flush_retired_dialog_bodies() const -> void;
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std::unique_ptr<luma::control> content_{};
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std::optional<luma::dialog_options> dialog_{};
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std::deque<luma::toast> toasts_{};
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std::chrono::steady_clock::duration toast_elapsed_{};
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mutable std::vector<std::unique_ptr<luma::control>> retired_dialog_bodies_{};
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mutable std::uint32_t traversal_depth_{};
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};
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auto overlays(std::unique_ptr<luma::control> content) -> std::expected<std::unique_ptr<luma::overlay_host>, modulus::error>;
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}
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