src/video/uikit/SDL_uikitevents.m
author Ryan C. Gordon <icculus@icculus.org>
Sun, 02 May 2010 05:08:12 -0400
changeset 4446 8b03a20b320f
parent 2985 4e4d814884aa
child 5123 dc0dfdd58f27
permissions -rw-r--r--
Much improved multi-display support for iPad. Fixes most issues and limitations, I think.

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#include "../../events/SDL_sysevents.h"
#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);
	}

}

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