michael@0: /* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * Runs the main native Cocoa run loop, interrupting it as needed to process
michael@0:  * Gecko events.  
michael@0:  */
michael@0: 
michael@0: #ifndef nsAppShell_h_
michael@0: #define nsAppShell_h_
michael@0: 
michael@0: class nsCocoaWindow;
michael@0: 
michael@0: #include "nsBaseAppShell.h"
michael@0: #include "nsTArray.h"
michael@0: 
michael@0: typedef struct _nsCocoaAppModalWindowListItem {
michael@0:   _nsCocoaAppModalWindowListItem(NSWindow *aWindow, NSModalSession aSession) :
michael@0:     mWindow(aWindow), mSession(aSession), mWidget(nullptr) {}
michael@0:   _nsCocoaAppModalWindowListItem(NSWindow *aWindow, nsCocoaWindow *aWidget) :
michael@0:     mWindow(aWindow), mSession(nil), mWidget(aWidget) {}
michael@0:   NSWindow *mWindow;       // Weak
michael@0:   NSModalSession mSession; // Weak (not retainable)
michael@0:   nsCocoaWindow *mWidget;  // Weak
michael@0: } nsCocoaAppModalWindowListItem;
michael@0: 
michael@0: class nsCocoaAppModalWindowList {
michael@0: public:
michael@0:   nsCocoaAppModalWindowList() {}
michael@0:   ~nsCocoaAppModalWindowList() {}
michael@0:   // Push a Cocoa app-modal window onto the top of our list.
michael@0:   nsresult PushCocoa(NSWindow *aWindow, NSModalSession aSession);
michael@0:   // Pop the topmost Cocoa app-modal window off our list.
michael@0:   nsresult PopCocoa(NSWindow *aWindow, NSModalSession aSession);
michael@0:   // Push a Gecko-modal window onto the top of our list.
michael@0:   nsresult PushGecko(NSWindow *aWindow, nsCocoaWindow *aWidget);
michael@0:   // Pop the topmost Gecko-modal window off our list.
michael@0:   nsresult PopGecko(NSWindow *aWindow, nsCocoaWindow *aWidget);
michael@0:   // Return the "session" of the top-most visible Cocoa app-modal window.
michael@0:   NSModalSession CurrentSession();
michael@0:   // Has a Gecko modal dialog popped up over a Cocoa app-modal dialog?
michael@0:   bool GeckoModalAboveCocoaModal();
michael@0: private:
michael@0:   nsTArray<nsCocoaAppModalWindowListItem> mList;
michael@0: };
michael@0: 
michael@0: // GeckoNSApplication
michael@0: //
michael@0: // Subclass of NSApplication for filtering out certain events.
michael@0: @interface GeckoNSApplication : NSApplication
michael@0: {
michael@0: }
michael@0: @end
michael@0: 
michael@0: @class AppShellDelegate;
michael@0: 
michael@0: class nsAppShell : public nsBaseAppShell
michael@0: {
michael@0: public:
michael@0:   NS_IMETHOD ResumeNative(void);
michael@0: 	
michael@0:   nsAppShell();
michael@0: 
michael@0:   nsresult Init();
michael@0: 
michael@0:   NS_IMETHOD Run(void);
michael@0:   NS_IMETHOD Exit(void);
michael@0:   NS_IMETHOD OnProcessNextEvent(nsIThreadInternal *aThread, bool aMayWait,
michael@0:                                 uint32_t aRecursionDepth);
michael@0:   NS_IMETHOD AfterProcessNextEvent(nsIThreadInternal *aThread,
michael@0:                                    uint32_t aRecursionDepth,
michael@0:                                    bool aEventWasProcessed);
michael@0: 
michael@0:   // public only to be visible to Objective-C code that must call it
michael@0:   void WillTerminate();
michael@0: 
michael@0: protected:
michael@0:   virtual ~nsAppShell();
michael@0: 
michael@0:   virtual void ScheduleNativeEventCallback();
michael@0:   virtual bool ProcessNextNativeEvent(bool aMayWait);
michael@0: 
michael@0:   bool InGeckoMainEventLoop();
michael@0: 
michael@0:   static void ProcessGeckoEvents(void* aInfo);
michael@0: 
michael@0: protected:
michael@0:   CFMutableArrayRef  mAutoreleasePools;
michael@0: 
michael@0:   AppShellDelegate*  mDelegate;
michael@0:   CFRunLoopRef       mCFRunLoop;
michael@0:   CFRunLoopSourceRef mCFRunLoopSource;
michael@0: 
michael@0:   bool               mRunningEventLoop;
michael@0:   bool               mStarted;
michael@0:   bool               mTerminated;
michael@0:   bool               mSkippedNativeCallback;
michael@0:   bool               mRunningCocoaEmbedded;
michael@0: 
michael@0:   // mHadMoreEventsCount and kHadMoreEventsCountMax are used in
michael@0:   // ProcessNextNativeEvent().
michael@0:   uint32_t               mHadMoreEventsCount;
michael@0:   // Setting kHadMoreEventsCountMax to '10' contributed to a fairly large
michael@0:   // (about 10%) increase in the number of calls to malloc (though without
michael@0:   // effecting the total amount of memory used).  Cutting it to '3'
michael@0:   // reduced the number of calls by 6%-7% (reducing the original regression
michael@0:   // to 3%-4%).  See bmo bug 395397.
michael@0:   static const uint32_t  kHadMoreEventsCountMax = 3;
michael@0: 
michael@0:   int32_t            mRecursionDepth;
michael@0:   int32_t            mNativeEventCallbackDepth;
michael@0:   // Can be set from different threads, so must be modified atomically
michael@0:   int32_t            mNativeEventScheduledDepth;
michael@0: };
michael@0: 
michael@0: #endif // nsAppShell_h_