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https://github.com/sebastiandine/Card-Collection-Manager-3.git
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Sebastian Dine
35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
#pragma once
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// Tracks when a modal Add/Edit card dialog is on screen so a second one
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// cannot be stacked (toolbar + list activation, or rare re-entrant cases).
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#include <atomic>
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namespace ccm::ui {
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// User-visible hint when Add/Edit is requested while a card dialog is already modal.
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inline constexpr const char* kCardEditModalBlockedUtf8 =
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"Close the open card dialog (save or cancel) before opening another card.";
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[[nodiscard]] inline std::atomic<int>& cardEditModalDepthRef() noexcept {
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static std::atomic<int> depth{0};
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return depth;
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}
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[[nodiscard]] inline bool cardEditModalIsActive() noexcept {
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return cardEditModalDepthRef().load(std::memory_order_relaxed) > 0;
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}
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struct CardEditModalGuard {
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CardEditModalGuard() {
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cardEditModalDepthRef().fetch_add(1, std::memory_order_relaxed);
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}
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~CardEditModalGuard() {
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cardEditModalDepthRef().fetch_sub(1, std::memory_order_relaxed);
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}
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CardEditModalGuard(const CardEditModalGuard&) = delete;
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CardEditModalGuard& operator=(const CardEditModalGuard&) = delete;
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};
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} // namespace ccm::ui
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