Cocoa window restoration and CEF runloop

[tomst]

Hi,

I'm trying to use Cocoa's native window restoration with CEF. cefclient_mac.mm says:

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// The default |-terminate:| implementation ends the process by calling exit(),
// and thus never leaves the main run loop. This is unsuitable for Chromium
// since Chromium depends on leaving the main run loop to perform an orderly
// shutdown.


This rules out the option of using [NSApp terminate:] directly (which causes CEF to crash in CefForceShutdown). However, in order to make window restoration work, I need to call the native implementation of [NSApp terminate:] because calling CefQuitMessageLoop() does not call my document's window:willEncodeRestorableState: method. Another option of terminating the app I was thinking about was to call [NSApp terminate:], and then override "applicationWillTerminate:" (which is called after the restoration state is serialized), and give CEF some time to clean up using CefQuitMessageLoop(); / CefDoMessageLoopWork();, however I wasn't able to come up with a working implementation.

Is there a way to use Cocoa's native [NSApp terminate:] together with CEF to enable native window restoration?

Thanks
Thomas

[magreenblatt]

If you can figure out what [NSApp terminate:] does related to window restoration then you could just do that in your shutdown code instead of relying on the default [NSApp terminate:] implementation to do it for you.

[tomst]

Thanks for the suggestion. Those are some private methods in NSPersistentUIManager which I'd rather not call directly. I figured out a way that wouldn't crash the application when exiting though. Not sure if it's the correct way to shut down, but it appears to work for now. I call the native [NSApp terminate:], and then implemented applicationWillTerminate: as follows:

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// In the app delegate
- (void)applicationWillTerminate:(NSNotification *)aNotification
{
    // This method is executed after the window restoration state is saved.
    CefShutdown();
}


On a related note, I'm also trying to restore fullscreen windows. If Cocoa restores a fullscreen window, I'd like to make the website aware of it. I was thinking of calling "webkitRequestFullscreen" in the JavaScript if the restored window is fullscreen, but Chromium doesn't let you call it explicitly ("API can only be initiated by a user gesture."). Any ideas what I could do here?