add save backup/restore, fix filebrowser touch screen, optimise all zip/unzip file code by using bigger stdio buffers.

sphaira/include/ui/menus/save_menu.hpp

@@ -0,0 +1,156 @@
+#pragma once
+
+#include "ui/menus/grid_menu_base.hpp"
+#include "ui/list.hpp"
+#include "fs.hpp"
+#include "option.hpp"
+#include <memory>
+#include <vector>
+#include <span>
+
+namespace sphaira::ui::menu::save {
+
+enum class NacpLoadStatus {
+    // not yet attempted to be loaded.
+    None,
+    // started loading.
+    Progress,
+    // loaded, ready to parse.
+    Loaded,
+    // failed to load, do not attempt to load again!
+    Error,
+};
+
+struct Entry final : FsSaveDataInfo {
+    NacpLanguageEntry lang{};
+    int image{};
+    bool selected{};
+
+    std::shared_ptr<NsApplicationControlData> control{};
+    u64 jpeg_size{};
+    NacpLoadStatus status{NacpLoadStatus::None};
+
+    auto GetName() const -> const char* {
+        return lang.name;
+    }
+
+    auto GetAuthor() const -> const char* {
+        return lang.author;
+    }
+};
+
+struct AccountEntry {
+    AccountUid uid;
+    AccountProfile profile;
+    AccountProfileBase base;
+};
+
+struct ThreadResultData {
+    u64 id{};
+    std::shared_ptr<NsApplicationControlData> control{};
+    u64 jpeg_size{};
+    NacpLanguageEntry lang{};
+    NacpLoadStatus status{NacpLoadStatus::None};
+};
+
+struct ThreadData {
+    ThreadData();
+
+    auto IsRunning() const -> bool;
+    void Run();
+    void Close();
+    void Push(u64 id);
+    void Push(std::span<const Entry> entries);
+    void Pop(std::vector<ThreadResultData>& out);
+
+private:
+    UEvent m_uevent{};
+    Mutex m_mutex_id{};
+    Mutex m_mutex_result{};
+
+    // app_ids pushed to the queue, signal uevent when pushed.
+    std::vector<u64> m_ids{};
+    // control data pushed to the queue.
+    std::vector<ThreadResultData> m_result{};
+
+    std::atomic_bool m_running{};
+};
+
+enum SortType {
+    SortType_Updated,
+};
+
+enum OrderType {
+    OrderType_Descending,
+    OrderType_Ascending,
+};
+
+using LayoutType = grid::LayoutType;
+
+struct Menu final : grid::Menu {
+    Menu(u32 flags);
+    ~Menu();
+
+    auto GetShortTitle() const -> const char* override { return "Saves"; };
+    void Update(Controller* controller, TouchInfo* touch) override;
+    void Draw(NVGcontext* vg, Theme* theme) override;
+    void OnFocusGained() override;
+
+private:
+    void SetIndex(s64 index);
+    void ScanHomebrew();
+    void Sort();
+    void SortAndFindLastFile(bool scan);
+    void FreeEntries();
+    void OnLayoutChange();
+
+    auto GetSelectedEntries() const {
+        std::vector<Entry> out;
+        for (auto& e : m_entries) {
+            if (e.selected) {
+                out.emplace_back(e);
+            }
+        }
+
+        if (!m_entries.empty() && out.empty()) {
+            out.emplace_back(m_entries[m_index]);
+        }
+
+        return out;
+    }
+
+    void ClearSelection() {
+        for (auto& e : m_entries) {
+            e.selected = false;
+        }
+
+        m_selected_count = 0;
+    }
+
+    void BackupSaves(std::vector<std::reference_wrapper<Entry>>& entries);
+    void RestoreSave();
+
+private:
+    static constexpr inline const char* INI_SECTION = "saves";
+
+    std::vector<Entry> m_entries{};
+    s64 m_index{}; // where i am in the array
+    s64 m_selected_count{};
+    std::unique_ptr<List> m_list{};
+    bool m_is_reversed{};
+    bool m_dirty{};
+
+    std::vector<AccountEntry> m_accounts{};
+    s64 m_account_index{};
+
+    ThreadData m_thread_data{};
+    Thread m_thread{};
+
+    option::OptionLong m_sort{INI_SECTION, "sort", SortType::SortType_Updated};
+    option::OptionLong m_order{INI_SECTION, "order", OrderType::OrderType_Descending};
+    option::OptionLong m_layout{INI_SECTION, "layout", LayoutType::LayoutType_Grid};
+    option::OptionBool m_auto_backup_on_restore{INI_SECTION, "auto_backup_on_restore", true};
+    option::OptionBool m_compress_save_backup{INI_SECTION, "compress_save_backup", false};
+};
+
+} // namespace sphaira::ui::menu::save