Finalize desktop pet feature set and GitHub export

src/system/StartupManager.cpp

@@ -0,0 +1,76 @@
+#include "StartupManager.h"
+
+#include <QCoreApplication>
+#include <QDir>
+#include <QFileInfo>
+#include <QSettings>
+
+namespace
+{
+const QString RunRegistryPath = QStringLiteral("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run");
+const QString StartupEntryName = QStringLiteral("QtDesktopPet");
+
+QString quotedCommand(const QString &filePath)
+{
+    QString nativePath = QDir::toNativeSeparators(filePath.trimmed());
+    nativePath.replace(QLatin1Char('"'), QStringLiteral("\\\""));
+    return QStringLiteral("\"") + nativePath + QStringLiteral("\"");
+}
+}
+
+namespace StartupManager
+{
+QString startupEntryName()
+{
+    return StartupEntryName;
+}
+
+QString startupCommandForCurrentExecutable()
+{
+    const QString executablePath = QFileInfo(QCoreApplication::applicationFilePath()).absoluteFilePath();
+    return executablePath.trimmed().isEmpty() ? QString() : quotedCommand(executablePath);
+}
+
+bool isLaunchAtStartupEnabled()
+{
+    QSettings settings(RunRegistryPath, QSettings::NativeFormat);
+    return !settings.value(StartupEntryName).toString().trimmed().isEmpty();
+}
+
+bool setLaunchAtStartupEnabled(bool enabled, QString *errorMessage)
+{
+    QSettings settings(RunRegistryPath, QSettings::NativeFormat);
+    if (enabled)
+    {
+        const QString command = startupCommandForCurrentExecutable();
+        if (command.isEmpty())
+        {
+            if (errorMessage != nullptr)
+            {
+                *errorMessage = QStringLiteral("无法获取当前程序路径，开机自启动设置未保存。");
+            }
+            return false;
+        }
+
+        settings.setValue(StartupEntryName, command);
+    }
+    else
+    {
+        settings.remove(StartupEntryName);
+    }
+
+    settings.sync();
+    if (settings.status() != QSettings::NoError)
+    {
+        if (errorMessage != nullptr)
+        {
+            *errorMessage = enabled
+                ? QStringLiteral("写入开机自启动注册表失败。")
+                : QStringLiteral("移除开机自启动注册表失败。");
+        }
+        return false;
+    }
+
+    return true;
+}
+}