/* UISpeakerButton.m
 *
 * Copyright (C) 2011  Belledonne Comunications, Grenoble, France
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or   
 *  (at your option) any later version.                                 
 *                                                                      
 *  This program 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 General Public License for more details.                
 *                                                                      
 *  You should have received a copy of the GNU General Public License   
 *  along with this program; if not, write to the Free Software         
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */       

#import "UISpeakerButton.h"
#import <AudioToolbox/AudioToolbox.h>
#include "linphonecore.h"

@implementation UISpeakerButton

static void audioRouteChangeListenerCallback (
                                       void                   *inUserData,                                 // 1
                                       AudioSessionPropertyID inPropertyID,                                // 2
                                       UInt32                 inPropertyValueSize,                         // 3
                                       const void             *inPropertyValue                             // 4
                                       ) {
    if (inPropertyID != kAudioSessionProperty_AudioRouteChange) return; // 5
    [(UISpeakerButton*)inUserData reset];  
   
}

-(void) initWithOnImage:(UIImage*) onImage offImage:(UIImage*) offImage {
   [super initWithOnImage:onImage offImage:offImage];
   AudioSessionPropertyID routeChangeID = kAudioSessionProperty_AudioRouteChange;
   AudioSessionInitialize(NULL, NULL, NULL, NULL);
   OSStatus lStatus = AudioSessionAddPropertyListener(routeChangeID, audioRouteChangeListenerCallback, self);
   if (lStatus) {
       ms_error ("cannot register route change handler [%i]",lStatus);
   }
}


-(void) onOn {
	//redirect audio to speaker
	UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;  
	AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute
							 , sizeof (audioRouteOverride)
							 , &audioRouteOverride);
	
}
-(void) onOff {
	UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_None;  
	AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute
							 , sizeof (audioRouteOverride)
							 , &audioRouteOverride);
}
-(bool) isInitialStateOn {
    CFStringRef lNewRoute=CFSTR("Unknown");
    UInt32 lNewRouteSize = sizeof(lNewRoute);
    OSStatus lStatus = AudioSessionGetProperty(kAudioSessionProperty_AudioRoute
                                                ,&lNewRouteSize
                                                ,&lNewRoute);
    if (!lStatus && CFStringGetLength(lNewRoute) > 0) {
        char route[64];
        CFStringGetCString(lNewRoute, route,sizeof(route), kCFStringEncodingUTF8);
        ms_message("Current audio route is [%s]",route);
        return (    kCFCompareEqualTo == CFStringCompare (lNewRoute,CFSTR("Speaker"),0) 
                ||  kCFCompareEqualTo == CFStringCompare (lNewRoute,CFSTR("SpeakerAndMicrophone"),0));
    } else 
        return false;
}


/*
 // Only override drawRect: if you perform custom drawing.
 // An empty implementation adversely affects performance during animation.
 - (void)drawRect:(CGRect)rect {
 // Drawing code.
 }
 */

- (void)dealloc {
    [super dealloc];
}


@end