Qt: Add automatic updater

src/duckstation-qt/autoupdaterdialog.h

@@ -0,0 +1,55 @@
+#pragma once
+#include "ui_autoupdaterdialog.h"
+#include <QtWidgets/QDialog>
+
+class QNetworkAccessManager;
+class QNetworkReply;
+
+class QtHostInterface;
+
+class AutoUpdaterDialog final : public QDialog
+{
+  Q_OBJECT
+
+public:
+  explicit AutoUpdaterDialog(QtHostInterface* host_interface, QWidget* parent = nullptr);
+  ~AutoUpdaterDialog();
+
+  static bool isSupported();
+
+Q_SIGNALS:
+  void updateCheckCompleted();
+
+public Q_SLOTS:
+  void queueUpdateCheck(bool display_message);
+  void queueGetLatestRelease();
+
+private Q_SLOTS:
+  void getLatestTagComplete(QNetworkReply* reply);
+  void getLatestReleaseComplete(QNetworkReply* reply);
+
+  void downloadUpdateClicked();
+  void skipThisUpdateClicked();
+  void remindMeLaterClicked();
+
+private:
+  void reportError(const char* msg, ...);
+  bool updateNeeded() const;
+
+#ifdef WIN32
+  bool processUpdate(const QByteArray& update_data);
+  bool extractUpdater(const QString& zip_path, const QString& destination_path);
+  bool doUpdate(const QString& zip_path, const QString& updater_path, const QString& destination_path);
+#else
+  bool processUpdate(const QByteArray& update_data);
+#endif
+
+  Ui::AutoUpdaterDialog m_ui;
+
+  QtHostInterface* m_host_interface;
+  QNetworkAccessManager* m_network_access_mgr = nullptr;
+  QString m_latest_sha;
+  QString m_download_url;
+
+  bool m_display_messages = false;
+};