StreamingKit/Audjustable/Classes/AudioPlayerView.m

//
//  AudioPlayerView.m
//  BlueCucumber-AudioPlayer
//
//  Created by Thong Nguyen on 01/06/2012.
//  Copyright (c) 2012 Thong Nguyen All rights reserved.
//

#import "AudioPlayerView.h"

@interface AudioPlayerView()
-(void) setupTimer;
-(void) updateControls;
@end

@implementation AudioPlayerView
@synthesize audioPlayer, delegate;

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
	
    if (self)
	{
		CGSize size = CGSizeMake(180, 50);
		
		playFromHTTPButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
		playFromHTTPButton.frame = CGRectMake((320 - size.width) / 2, 60, size.width, size.height);
		[playFromHTTPButton addTarget:self action:@selector(playFromHTTPButtonTouched) forControlEvents:UIControlEventTouchUpInside];
		[playFromHTTPButton setTitle:@"Play from HTTP" forState:UIControlStateNormal];

		playFromLocalFileButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
		playFromLocalFileButton.frame = CGRectMake((320 - size.width) / 2, 120, size.width, size.height);
		[playFromLocalFileButton addTarget:self action:@selector(playFromLocalFileButtonTouched) forControlEvents:UIControlEventTouchUpInside];
		[playFromLocalFileButton setTitle:@"Play from Local File" forState:UIControlStateNormal];
	
		playButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
		playButton.frame = CGRectMake((320 - size.width) / 2, 350, size.width, size.height);
		[playButton addTarget:self action:@selector(playButtonPressed) forControlEvents:UIControlEventTouchUpInside];
		
		slider = [[UISlider alloc] initWithFrame:CGRectMake(20, 290, 280, 20)];
		slider.continuous = YES;
		[slider addTarget:self action:@selector(sliderChanged) forControlEvents:UIControlEventValueChanged];
		
		[self addSubview:slider];
		[self addSubview:playButton];
		[self addSubview:playFromHTTPButton];
		[self addSubview:playFromLocalFileButton];
		
		[self setupTimer];
		[self updateControls];
    }
	
    return self;
}

-(void) sliderChanged
{
	if (!audioPlayer)
	{
		return;
	}
	
	NSLog(@"Slider Changed: %f", slider.value);
	
	[audioPlayer seekToTime:slider.value];
}

-(void) setupTimer
{
	timer = [NSTimer timerWithTimeInterval:0.25 target:self selector:@selector(tick) userInfo:nil repeats:YES];
	
	[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];
}

-(void) tick
{
	if (!audioPlayer || audioPlayer.duration == 0)
	{
		slider.value = 0;
		
		return;
	}
	
	slider.minimumValue = 0;
	slider.maximumValue = audioPlayer.duration;
	
	slider.value = audioPlayer.progress;
}

-(void) playFromHTTPButtonTouched
{
	[self.delegate audioPlayerViewPlayFromHTTPSelected:self];
}

-(void) playFromLocalFileButtonTouched
{
	[self.delegate audioPlayerViewPlayFromLocalFileSelected:self];
}

-(void) playButtonPressed
{
	if (!audioPlayer)
	{
		return;
	}
	
	if (audioPlayer.state == AudioPlayerStatePaused)
	{
		[audioPlayer resume];
	}
	else
	{
		[audioPlayer pause];
	}
}

-(void) updateControls
{
	if (audioPlayer == nil)
	{
		[playButton setTitle:@"Play" forState:UIControlStateNormal];
	}
	else if (audioPlayer.state == AudioPlayerStatePaused)
	{
		[playButton setTitle:@"Resume" forState:UIControlStateNormal];
	}
	else if (audioPlayer.state == AudioPlayerStatePlaying)
	{
		[playButton setTitle:@"Pause" forState:UIControlStateNormal];
	}
	else
	{
		[playButton setTitle:@"Play" forState:UIControlStateNormal];
	}
}

-(void) setAudioPlayer:(AudioPlayer*)value
{
	if (audioPlayer)
	{
		audioPlayer.delegate = nil;
	}

	audioPlayer = value;
	audioPlayer.delegate = self;
	
	[self updateControls];
}

-(AudioPlayer*) audioPlayer
{
	return audioPlayer;
}

-(void) audioPlayer:(AudioPlayer*)audioPlayer stateChanged:(AudioPlayerState)state
{
	[self updateControls];
}

-(void) audioPlayer:(AudioPlayer*)audioPlayer didEncounterError:(AudioPlayerErrorCode)errorCode
{
	[self updateControls];
}

-(void) audioPlayer:(AudioPlayer*)audioPlayer didStartPlayingQueueItemId:(NSObject*)queueItemId
{
	[self updateControls];
}

-(void) audioPlayer:(AudioPlayer*)audioPlayer didFinishBufferingSourceWithQueueItemId:(NSObject*)queueItemId
{
	[self updateControls];
}

-(void) audioPlayer:(AudioPlayer*)audioPlayer didFinishPlayingQueueItemId:(NSObject*)queueItemId withReason:(AudioPlayerStopReason)stopReason andProgress:(double)progress andDuration:(double)duration
{
	[self updateControls];
}

@end