SDL-mirror/src/video/uikit/SDL_uikitevents.m

/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"

#if SDL_VIDEO_DRIVER_UIKIT

#include "../../events/SDL_events_c.h"

#include "SDL_uikitvideo.h"
#include "SDL_uikitevents.h"

#import <Foundation/Foundation.h>
#include "jumphack.h"

void
UIKit_PumpEvents(_THIS)
{
    /*
        When the user presses the 'home' button on the iPod
        the application exits -- immediatly.

        Unlike in Mac OS X, it appears there is no way to cancel the termination.

        This doesn't give the SDL user's application time to respond to an SDL_Quit event.
        So what we do is that in the UIApplicationDelegate class (SDLUIApplicationDelegate),
        when the delegate receives the ApplicationWillTerminate message, we execute
        a longjmp statement to get back here, preventing an immediate exit.
     */
    if (setjmp(*jump_env()) == 0) {
        /* if we're setting the jump, rather than jumping back */
        SInt32 result;
        do {
            result = CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, TRUE);
        } while (result == kCFRunLoopRunHandledSource);
    }
}

#endif /* SDL_VIDEO_DRIVER_UIKIT */

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