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/* -*- 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 */
* 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 {
@property(readonly) BOOL didLaunch;
@class AppShellDelegate;
class nsAppShell : public nsBaseAppShell {
NS_IMETHOD ResumeNative(void) override;
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);
virtual ~nsAppShell();
virtual void ScheduleNativeEventCallback() override;
virtual bool ProcessNextNativeEvent(bool aMayWait) override;
void InitMemoryPressureObserver();
static void ProcessGeckoEvents(void* aInfo);
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_