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nsAppShell.h
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nsAppShell.h
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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 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_
class nsCocoaWindow;
#include "nsBaseAppShell.h"
#include "nsTArray.h"
typedef struct _nsCocoaAppModalWindowListItem {
_nsCocoaAppModalWindowListItem(NSWindow *aWindow, NSModalSession aSession) :
mWindow(aWindow), mSession(aSession), mWidget(nullptr) {}
_nsCocoaAppModalWindowListItem(NSWindow *aWindow, nsCocoaWindow *aWidget) :
mWindow(aWindow), mSession(nil), mWidget(aWidget) {}
NSWindow *mWindow; // Weak
NSModalSession mSession; // Weak (not retainable)
nsCocoaWindow *mWidget; // Weak
} nsCocoaAppModalWindowListItem;
class nsCocoaAppModalWindowList {
public:
nsCocoaAppModalWindowList() {}
~nsCocoaAppModalWindowList() {}
// Push a Cocoa app-modal window onto the top of our list.
nsresult PushCocoa(NSWindow *aWindow, NSModalSession aSession);
// Pop the topmost Cocoa app-modal window off our list.
nsresult PopCocoa(NSWindow *aWindow, NSModalSession aSession);
// Push a Gecko-modal window onto the top of our list.
nsresult PushGecko(NSWindow *aWindow, nsCocoaWindow *aWidget);
// Pop the topmost Gecko-modal window off our list.
nsresult PopGecko(NSWindow *aWindow, nsCocoaWindow *aWidget);
// Return the "session" of the top-most visible Cocoa app-modal window.
NSModalSession CurrentSession();
// Has a Gecko modal dialog popped up over a Cocoa app-modal dialog?
bool GeckoModalAboveCocoaModal();
private:
nsTArray<nsCocoaAppModalWindowListItem> mList;
};
// GeckoNSApplication
//
// Subclass of NSApplication for filtering out certain events.
@interface GeckoNSApplication : NSApplication
{
}
@end
@class AppShellDelegate;
class nsAppShell : public nsBaseAppShell
{
public:
NS_IMETHOD ResumeNative(void);
nsAppShell();
nsresult Init();
NS_IMETHOD Run(void);
NS_IMETHOD Exit(void);
NS_IMETHOD OnProcessNextEvent(nsIThreadInternal *aThread, bool aMayWait,
uint32_t aRecursionDepth);
NS_IMETHOD AfterProcessNextEvent(nsIThreadInternal *aThread,
uint32_t aRecursionDepth);
// public only to be visible to Objective-C code that must call it
void WillTerminate();
protected:
virtual ~nsAppShell();
virtual void ScheduleNativeEventCallback();
virtual bool ProcessNextNativeEvent(bool aMayWait);
bool InGeckoMainEventLoop();
static void ProcessGeckoEvents(void* aInfo);
protected:
CFMutableArrayRef mAutoreleasePools;
AppShellDelegate* mDelegate;
CFRunLoopRef mCFRunLoop;
CFRunLoopSourceRef mCFRunLoopSource;
bool mRunningEventLoop;
bool mStarted;
bool mTerminated;
bool mSkippedNativeCallback;
bool mRunningCocoaEmbedded;
// mHadMoreEventsCount and kHadMoreEventsCountMax are used in
// ProcessNextNativeEvent().
uint32_t mHadMoreEventsCount;
// Setting kHadMoreEventsCountMax to '10' contributed to a fairly large
// (about 10%) increase in the number of calls to malloc (though without
// effecting the total amount of memory used). Cutting it to '3'
// reduced the number of calls by 6%-7% (reducing the original regression
// to 3%-4%). See bmo bug 395397.
static const uint32_t kHadMoreEventsCountMax = 3;
int32_t mRecursionDepth;
int32_t mNativeEventCallbackDepth;
// Can be set from different threads, so must be modified atomically
int32_t mNativeEventScheduledDepth;
};
#endif // nsAppShell_h_