1 files changed, 92 insertions, 0 deletions
diff --git a/widget/cocoa/nsAppShell.h b/widget/cocoa/nsAppShell.h
new file mode 100644
index 0000000000..009768794f
--- /dev/null
+++ b/widget/cocoa/nsAppShell.h
@@ -0,0 +1,92 @@
+/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Runs the main native Cocoa run loop, interrupting it as needed to process
+ * Gecko events.
+ */
+
+#ifndef nsAppShell_h_
+#define nsAppShell_h_
+
+#import <AppKit/NSApplication.h>
+
+#include "nsBaseAppShell.h"
+#include "nsTArray.h"
+
+class ProfilingStack;
+
+namespace mozilla {
+class nsAvailableMemoryWatcherBase;
+}
+
+// GeckoNSApplication
+//
+// Subclass of NSApplication for filtering out certain events.
+@interface GeckoNSApplication : NSApplication {
+}
+@end
+
+@class AppShellDelegate;
+
+class nsAppShell : public nsBaseAppShell {
+ public:
+  NS_IMETHOD ResumeNative(void) override;
+
+  nsAppShell();
+
+  nsresult Init();
+
+  NS_IMETHOD Run(void) override;
+  NS_IMETHOD Exit(void) override;
+  NS_IMETHOD OnProcessNextEvent(nsIThreadInternal* aThread, bool aMayWait) override;
+  NS_IMETHOD AfterProcessNextEvent(nsIThreadInternal* aThread, bool aEventWasProcessed) override;
+
+  void OnRunLoopActivityChanged(CFRunLoopActivity aActivity);
+
+  // public only to be visible to Objective-C code that must call it
+  void WillTerminate();
+
+  static void OnMemoryPressureChanged(dispatch_source_memorypressure_flags_t aPressureLevel);
+
+ protected:
+  virtual ~nsAppShell();
+
+  virtual void ScheduleNativeEventCallback() override;
+  virtual bool ProcessNextNativeEvent(bool aMayWait) override;
+
+  void InitMemoryPressureObserver();
+
+  static void ProcessGeckoEvents(void* aInfo);
+
+ protected:
+  CFMutableArrayRef mAutoreleasePools;
+
+  AppShellDelegate* mDelegate;
+  CFRunLoopRef mCFRunLoop;
+  CFRunLoopSourceRef mCFRunLoopSource;
+
+  // An observer for the profiler that is notified when the event loop enters
+  // and exits the waiting state.
+  CFRunLoopObserverRef mCFRunLoopObserver;
+
+  // Non-null while the native event loop is in the waiting state.
+  ProfilingStack* mProfilingStackWhileWaiting = nullptr;
+
+  // For getting notifications from the OS about memory pressure state changes.
+  dispatch_source_t mMemoryPressureSource = nullptr;
+
+  bool mRunningEventLoop;
+  bool mStarted;
+  bool mTerminated;
+  bool mSkippedNativeCallback;
+  bool mRunningCocoaEmbedded;
+
+  int32_t mNativeEventCallbackDepth;
+  // Can be set from different threads, so must be modified atomically
+  int32_t mNativeEventScheduledDepth;
+};
+
+#endif  // nsAppShell_h_