using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Xna.Framework.Media;
using System.Linq;
using System.Diagnostics;
using System.Collections.Generic;
namespace ResumeMusicPlayTest
{
// copied from: http://gdwp7dev.wordpress.com/2010/10/19/resume-the-users-music-after-mediaplay/
public static class XnaMusicUtil
{
public static Song currSong;
public static bool isRadio;
public static double radioFrequency;
public static MediaState currState;
public static List<Song> currQueue = new List<Song>();
public static bool hasSaved = false;
public static void SaveCurrentMediaState(bool isStopping = false)
{
currQueue.Clear();
currSong = null;
isRadio = false;
hasSaved = false;
currState = MediaPlayer.State;
Debug.WriteLine(MediaPlayer.State.ToString()); // State of song: Playing / Stopped / Paused
radioFrequency = Microsoft.Devices.Radio.FMRadio.Instance.Frequency;
//Microsoft.Devices.MediaHistory mh = Microsoft.Devices.MediaHistory.Instance;
//Microsoft.Devices.MediaHistoryItem item = mh.NowPlaying;
if (MediaPlayer.Queue != null)
{
switch (MediaPlayer.Queue.Count)
{
case 0:
break;
case 1:// only one song in the queue, can be radio or a real song
if ((Microsoft.Devices.Radio.FMRadio.Instance.PowerMode == Microsoft.Devices.Radio.RadioPowerMode.On) || (MediaPlayer.Queue.ActiveSongIndex == -1))
{
isRadio = true;
Debug.WriteLine("Radio :" + MediaPlayer.Queue.ActiveSong.Name); // Currently playing song
hasSaved = true;
}
else
{
isRadio = false;
currQueue.Add(MediaPlayer.Queue[0]);
if (MediaPlayer.Queue.ActiveSong != null)
{
currSong = MediaPlayer.Queue.ActiveSong;
Debug.WriteLine(MediaPlayer.Queue.ActiveSong.Name); // Currently playing song
}
hasSaved = true;
}
break;
default://mor song in the queue, save the whole queue and the active song too
isRadio = false;
for (int i = 0; i < MediaPlayer.Queue.Count; i++)
{
currQueue.Add(MediaPlayer.Queue[i]);
}
if (MediaPlayer.Queue.ActiveSong != null)
{
currSong = MediaPlayer.Queue.ActiveSong;
Debug.WriteLine(MediaPlayer.Queue.ActiveSong.Name); // Currently playing song
}
hasSaved = true;
break;
}
}
//if the user set the isStopping parameter we are stopping the playback right now
if ((MediaPlayer.State == MediaState.Playing) && (isStopping)) MediaPlayer.Stop();
if ((Microsoft.Devices.Radio.FMRadio.Instance.PowerMode == Microsoft.Devices.Radio.RadioPowerMode.On) && (isStopping)) Microsoft.Devices.Radio.FMRadio.Instance.PowerMode = Microsoft.Devices.Radio.RadioPowerMode.Off;
//FrameworkDispatcher.Update();
}
private static bool MatchAndPlay(SongCollection sc)//used for Compare Albums and Playlists with the saved queue
{
bool containsAll = true;
bool isFound = false;
int currIndex = 0;
if (sc.Count == currQueue.Count)
{
for (int j = 0; j < currQueue.Count; j++)
{
if (!sc.Contains(currQueue[j])) containsAll = false;
}
isFound = containsAll;
if (isFound)// the currently checked SongCollection(Album,Playlist) contains all the songs from our saved queue
{
for (int k = 0; k < sc.Count; k++)//SongCollection dont have .indexof so we iterate
{
if (sc[k] == currSong) //search for the saved activesong in the SongCollection to start the playback with it
{
currIndex = k;
MediaPlayer.Play(sc, currIndex);
break;
}
}
}
}
return isFound;
}
public static void RestoreCurrentMediaState()
{
bool isFound = false;
if (hasSaved)
{
if (isRadio && radioFrequency != 0d)
{
Microsoft.Devices.Radio.FMRadio.Instance.PowerMode = Microsoft.Devices.Radio.RadioPowerMode.On;
Microsoft.Devices.Radio.FMRadio.Instance.Frequency = radioFrequency;
if (Microsoft.Devices.Radio.FMRadio.Instance.Frequency != radioFrequency) Microsoft.Devices.Radio.FMRadio.Instance.Frequency = radioFrequency; //doublecheck
}
else
{
MediaLibrary ml = new MediaLibrary();
Debug.WriteLine("Before restore: " + MediaPlayer.State.ToString()); // State of song: Playing / Stopped / Paused
switch (currQueue.Count)
{
case 0:
break;
case 1:
if (currSong != null)//only one song in the queue, check if its available to play and play
{
try
{
if (ml.Songs.Contains(currSong)) MediaPlayer.Play(currSong);
}
catch { }
}
break;
default:
if (ml.Playlists.Count > 0)
{
for (int i = 0; i < ml.Playlists.Count; i++)
{
isFound = MatchAndPlay(ml.Playlists[i].Songs);
if (isFound) break;
}
}
if ((ml.Albums.Count > 0) && (!isFound))//not a playlist, search albums
{
for (int i = 0; i < ml.Albums.Count; i++)
{
isFound = MatchAndPlay(ml.Albums[i].Songs);
if (isFound) break;
}
}
if ((currSong != null) && (!isFound))//happens when the user adds items to the Now Playing collection from 2 or more different albums
{
try
{
MediaPlayer.Play(currSong);
}
catch { }
//MessageBox.Show("We can't resume your music, please resume it manually");
}
break;
}
}
switch (currState) //restore the stored state
{
case MediaState.Paused:
MediaPlayer.Pause();
break;
case MediaState.Playing:
break;
case MediaState.Stopped:
MediaPlayer.Stop();
break;
default:
break;
}
}
currQueue.Clear();
hasSaved = false;
//FrameworkDispatcher.Update();
}
}
}
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