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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; -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is a Cocoa widget run loop and event implementation.
*
* The Initial Developer of the Original Code is Google Inc.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Mark Mentovai <mark@moxienet.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* 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(nsnull) {}
_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;
};
@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,
PRUint32 aRecursionDepth);
NS_IMETHOD AfterProcessNextEvent(nsIThreadInternal *aThread,
PRUint32 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().
PRUint32 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 PRUint32 kHadMoreEventsCountMax = 3;
PRInt32 mRecursionDepth;
PRInt32 mNativeEventCallbackDepth;
// Can be set from different threads, so must be modified atomically
PRInt32 mNativeEventScheduledDepth;
};
#endif // nsAppShell_h_