feat: backup window-layout (#5647)

CHANGELOG.md

@@ -44,6 +44,7 @@
 - Minor: Mentions of FrankerFaceZ and BetterTTV in settings are standardized as such. (#5698)
 - Minor: Emote names are no longer duplicated when using smarter emote completion. (#5705)
 - Minor: Added a setting to hide the scrollbar thumb (the handle you can drag). Hiding the scrollbar thumb will disable mouse click & drag interactions in the scrollbar. (#5731)
+- Minor: The window layout is now backed up like the other settings. (#5647)
 - Bugfix: Fixed tab move animation occasionally failing to start after closing a tab. (#5426, #5612)
 - Bugfix: If a network request errors with 200 OK, Qt's error code is now reported instead of the HTTP status. (#5378)
 - Bugfix: Fixed restricted users usernames not being clickable. (#5405)

src/CMakeLists.txt

@@ -494,6 +494,7 @@ set(SOURCE_FILES
         util/DisplayBadge.cpp
         util/DisplayBadge.hpp
         util/Expected.hpp
+        util/FilesystemHelpers.hpp
         util/FormatTime.cpp
         util/FormatTime.hpp
         util/FunctionEventFilter.cpp

src/singletons/WindowManager.cpp

@@ -10,6 +10,7 @@
 #include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
 #include "util/CombinePath.hpp"
+#include "util/FilesystemHelpers.hpp"
 #include "util/SignalListener.hpp"
 #include "widgets/AccountSwitchPopup.hpp"
 #include "widgets/dialogs/SettingsDialog.hpp"
@@ -21,6 +22,7 @@
 #include "widgets/splits/SplitContainer.hpp"
 #include "widgets/Window.hpp"
 
+#include <pajlada/settings/backup.hpp>
 #include <QDebug>
 #include <QJsonArray>
 #include <QJsonDocument>
@@ -516,19 +518,33 @@ void WindowManager::save()
     document.setObject(obj);
 
     // save file
-    QSaveFile file(this->windowLayoutFilePath);
-    file.open(QIODevice::WriteOnly | QIODevice::Truncate);
-
-    QJsonDocument::JsonFormat format =
-#ifdef _DEBUG
-        QJsonDocument::JsonFormat::Compact
-#else
-        (QJsonDocument::JsonFormat)0
-#endif
-        ;
+    std::error_code ec;
+    pajlada::Settings::Backup::saveWithBackup(
+        qStringToStdPath(this->windowLayoutFilePath),
+        {.enabled = true, .numSlots = 9},
+        [&](const auto &path, auto &ec) {
+            QSaveFile file(stdPathToQString(path));
+            if (!file.open(QIODevice::WriteOnly | QIODevice::Truncate))
+            {
+                ec = std::make_error_code(std::errc::io_error);
+                return;
+            }
+
+            file.write(document.toJson(QJsonDocument::Indented));
+            if (!file.commit() || file.error() != QFile::NoError)
+            {
+                ec = std::make_error_code(std::errc::io_error);
+            }
+        },
+        ec);
 
-    file.write(document.toJson(format));
-    file.commit();
+    if (ec)
+    {
+        // TODO(Qt 6.5): drop fromStdString
+        qCWarning(chatterinoWindowmanager)
+            << "Failed to save windowlayout"
+            << QString::fromStdString(ec.message());
+    }
 }
 
 void WindowManager::sendAlert()

src/util/FilesystemHelpers.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <QFileDevice>
+#include <QString>
+
+#include <filesystem>
+
+namespace chatterino {
+
+inline QString stdPathToQString(const std::filesystem::path &path)
+{
+#ifdef Q_OS_WIN
+    return QString::fromStdWString(path.native());
+#else
+    return QString::fromStdString(path.native());
+#endif
+}
+
+inline std::filesystem::path qStringToStdPath(const QString &path)
+{
+    // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
+    const auto *ptr = reinterpret_cast<const char16_t *>(path.utf16());
+    return {ptr, ptr + path.size()};
+}
+
+}  // namespace chatterino