Updater: Mac support

src/updater/cocoa_progress_callback.h

@@ -0,0 +1,64 @@
+// SPDX-FileCopyrightText: 2019-2023 Connor McLaughlin <stenzek@gmail.com>
+// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
+
+#pragma once
+
+#include "common/progress_callback.h"
+
+#include <AppKit/AppKit.h>
+#include <Cocoa/Cocoa.h>
+
+#ifndef __OBJC__
+#error This file needs to be compiled with Objective C++.
+#endif
+
+#if __has_feature(objc_arc)
+#error ARC should not be enabled.
+#endif
+
+class CocoaProgressCallback final : public BaseProgressCallback
+{
+public:
+  CocoaProgressCallback();
+  ~CocoaProgressCallback();
+
+  void PushState() override;
+  void PopState() override;
+
+  void SetCancellable(bool cancellable) override;
+  void SetTitle(const char* title) override;
+  void SetStatusText(const char* text) override;
+  void SetProgressRange(u32 range) override;
+  void SetProgressValue(u32 value) override;
+
+  void DisplayError(const char* message) override;
+  void DisplayWarning(const char* message) override;
+  void DisplayInformation(const char* message) override;
+  void DisplayDebugMessage(const char* message) override;
+
+  void ModalError(const char* message) override;
+  bool ModalConfirmation(const char* message) override;
+  void ModalInformation(const char* message) override;
+  
+private:
+  enum : int
+  {
+    WINDOW_WIDTH = 600,
+    WINDOW_HEIGHT = 300,
+    WINDOW_MARGIN = 20,
+    SUBWINDOW_PADDING = 10,
+    SUBWINDOW_WIDTH = WINDOW_WIDTH - WINDOW_MARGIN - WINDOW_MARGIN,
+  };
+
+  bool Create();
+  void Destroy();
+  void UpdateProgress();
+  void AppendMessage(const char* message);
+
+  NSWindow* m_window = nil;
+  NSView* m_view = nil;
+  NSTextField* m_status = nil;
+  NSProgressIndicator* m_progress = nil;
+  NSScrollView* m_text_scroll = nil;
+  NSTextView* m_text = nil;
+};