//    Copyright (c) Microsoft Corporation.  All rights reserved.

//-----------------------------------------------------------------
// PlayerDetection.js                                              
//										                           
// Purpose:                                                        
//   Javascript library of functions used.  Each
//   function is commented as to its purpose.            
//-----------------------------------------------------------------

//------------------------
//-- Global Vars 
//------------------------
var WMPVer = "unknown";       // Set to WMP version string detected
var fHasWMP = false;          // True if either WMP v6.4 or v7+ found
var fHasWMP64 = false;        // True if WMP v6.4 found
var fHasWMP7 = false;         // True if WMP v7+ (8, 9) found
var fAppletRunning = false;   // True if v9 Applet is in use
var fPluginRunning = false;   // True if v6.4 Netscape plugin is in use

//Detect ActiveX Architecture on Both IE and on Gecko
//Defer to plugin architecture for other browsers

function internal_detectWMP()
{
	var wmpInfo = {
		installed: false,
		scriptable: false,
		type: null,
		versionInfo: null,
		HasWMP64 : false,
		HasWMP7 : false
	};
	var wmp64 = "MediaPlayer.MediaPlayer.1";
	var wmp7 = "WMPlayer.OCX.7";
	if((window.ActiveXObject && navigator.userAgent.indexOf('Windows') != -1) || window.GeckoActiveXObject)
	{
		wmpInfo.type = "ActiveX";
		var player = createActiveXObject(wmp7);
		if(player)
		{
		    wmpInfo.HasWMP7 = true;
			wmpInfo.installed = true;
			wmpInfo.scriptable = true;
			wmpInfo.versionInfo = player.versionInfo;
			return wmpInfo;
		}
		else
		{
			player = createActiveXObject(wmp64);
			if(player)
			{
			    wmpInfo.HasWMP64 = true;
				wmpInfo.installed = true;
				wmpInfo.scriptable = true;
				wmpInfo.versionInfo = "6.4";
				return wmpInfo;
			}
			else
			{
				wmpInfo.versionInfo = "none";
				return wmpInfo;
			}
		}
	}
	else if(navigator.mimeTypes)
	{
		wmpInfo.type = "NetscapePlugin";
		var player = navigator.mimeTypes['application/x-mplayer2'].enabledPlugin;
		if(player)
		{	
			wmpInfo.HasWMP64 = true;
			wmpInfo.installed = true;
			wmpInfo.versionInfo = "PluginVersion";
			return wmpInfo;
		}
		return wmpInfo;
	}
	
	
}

function detectWMP()
{
 var res = internal_detectWMP();
 
 fHasWMP64 = res.HasWMP64; 
 fHasWMP7 = res.HasWMP7;
 fHasWMP = res.installed;
 
 if(res.versionInfo == "PluginVersion")
 {
   WMPVer = "6.4";
   fPluginRunning = true;
   fAppletRunning = true;
 }
 else WMPVer  = res.versionInfo;
 
 return res;
}



function createActiveXObject(id)
{
  var error;
  var control = null;

  try
  {
    if (window.ActiveXObject)
    {
      control = new ActiveXObject(id);
    }
    else if (window.GeckoActiveXObject)
    {
      control = new GeckoActiveXObject(id);
    }
  }
  catch (error)
  {
    ;
  }
  return control;
}


function printResults()
{
	var detectionResults = detectWMP();
	document.write("Browser architecture supports: " + detectionResults.type + "\n");
	document.write("Windows Media Player Installed: " + detectionResults.installed + "\n");
	if(detectionResults.installed)
	{
		document.write("Windows Media Scriptable: " + detectionResults.scriptable + "\n");
		document.write("Windows Media Version: " + detectionResults.versionInfo + "\n");
	}
	
}





//-----------------------------------------------
// v7+ onPlayStateChange state options array
//-----------------------------------------------
var psArray = new Array(12);
psArray[0] = "Undefined - Windows Media Player is in an undefined state.";
psArray[1] = "Stopped - Playback of the current media clip is stopped."; 
psArray[2] = "Paused - Playback of the current media clip is paused. When media is paused, resuming playback begins from the same location.";
psArray[3] = "Playing - The current media clip is playing."; 
psArray[4] = "ScanForward - The current media clip is fast forwarding.";
psArray[5] = "ScanReverse - The current media clip is fast rewinding."; 
psArray[6] = "Buffering - The current media clip is getting additional data from the server.";
psArray[7] = "Waiting - Connection is established, however the server is not sending bits. Waiting for session to begin.";
psArray[8] = "MediaEnded - Media has completed playback and is at its end.";  
psArray[9] = "Transitioning - Preparing new media."; 
psArray[10] = "Ready - Ready to begin playing."; 
psArray[11] = "Reconnecting - Reconnecting to stream.";


//-----------------------------------------------
// v6.4 onPlayStateChange state options array
//-----------------------------------------------
var ps64Array = new Array(9);
ps64Array[0] = "mpStopped - Playback is stopped.";
ps64Array[1] = "mpPaused - Playback is paused."; 
ps64Array[2] = "mpPlaying - Stream is playing."; 
ps64Array[3] = "mpWaiting - Waiting for stream to begin."; 
ps64Array[4] = "mpScanForward - Stream is scanning forward."; 
ps64Array[5] = "mpScanReverse - Stream is scanning in reverse."; 
ps64Array[6] = "mpSkipForward - Skipping to next."; 
ps64Array[7] = "mpSkipReverse - Skipping to previous."; 
ps64Array[8] = "mpClosed - Stream is not open."; 


//-----------------------------------------------
// Name:  GetOS
// Purpose:  Get Operating System Information
//-----------------------------------------------

function GetOS()
{
  var OSName=navigator.appVersion.toLowerCase();
  if (OSName.indexOf('win')!=-1) 
	return "windows";
  else if (OSName.indexOf('mac')!=-1)
	return "mac";
  else if (OSName.indexOf('x11')!=-1)
	return "unix";
  else if (OSName.indexOf('linux')!=-1)
	return "linux";
  else
	return "unknown";
}

//-----------------------------------------------
// Name:  GetBrowser
// Purpose: Get Browser Information
//-----------------------------------------------
function GetBrowser()
{
   var agt=navigator.userAgent.toLowerCase();
   if( ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1)) )
       return "IE";
   else if(agt.indexOf("firefox") > 0)
       return "FireFox";
   else if( ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
         && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
         && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1)) )
       return "Netscape";
   else
       return "unknown";
}


//------------------------------------------------
// Name:  GetPlayerMajorVer
// Purpose: Get Media Player Major Version Number
//------------------------------------------------
function GetPlayerMajorVer()
{
	var strVer = new String(WMPVer);
	s = strVer.split(".");
    return s[0];
}


//-------------------------------------------------
// Name:  GetPlayerMinorVer
// Purpose: Get Media Player Major Version Number.
//-------------------------------------------------
function GetPlayerMinorVer()
{
	var strVer = new String(WMPVer);
	s = strVer.split(".");
	if (s[1])
		return s[1];
	else
		return("unknown");
}


//-----------------------------------------------------------------
// Name: IsNSPluginInstalled
// Purpose: Checks mime types to determine if the WMP 6.4 Netscape 
//          Plugin is installed.
//-----------------------------------------------------------------
function IsNSPluginInstalled()
{
    // See if 6.4 pluggin installed
    if (navigator.mimeTypes && navigator.mimeTypes["application/x-mplayer2"] && navigator.mimeTypes["application/x-mplayer2"].enabledPlugin)
		return(true);
	else
		return(false);
}


//----------------------------------------------------------------------
// Name:  set_uiMode
// Purpose:  Wrapper function for setting the uiMode of the Media Player 
//  control.  Supports uiMode of "none", "mini" and "full".
//-----------------------------------------------------------------------
function set_uiMode(uiMode)
{
 // Note: Per WMP SDK, uiMode is a string:  "none", "mini", "full"
 // If Netscape pluggin is running set properties via SetXXX routines.
 if (fPluginRunning)
 {
 	if (uiMode=="none") {
	   document.MediaPlayer.SetShowControls(false);
	   document.MediaPlayer.SetShowTracker(false);
	   document.MediaPlayer.SetEnableTracker(false);
	   document.MediaPlayer.SetShowPositionControls(false);
	   document.MediaPlayer.SetEnablePositionControls(false);
	   document.MediaPlayer.SetShowStatusBar(false);
	} 
    if (uiMode=="mini") {
	   document.MediaPlayer.SetShowControls(true);
	   document.MediaPlayer.SetShowTracker(false);
	   document.MediaPlayer.SetEnableTracker(false);
	   document.MediaPlayer.SetShowPositionControls(false);
	   document.MediaPlayer.SetEnablePositionControls(false);
	   document.MediaPlayer.SetShowStatusBar(true);
	}  
	if (uiMode=="full") {
	   document.MediaPlayer.SetShowControls(true);
	   document.MediaPlayer.SetShowTracker(true);
	   document.MediaPlayer.SetEnableTracker(true);
	   document.MediaPlayer.SetShowPositionControls(true);
	   document.MediaPlayer.SetEnablePositionControls(true);
	   document.MediaPlayer.SetShowStatusBar(true);
	}
 }
 else
 // If WMP 6.4 then set ui mode related properties
 if (fHasWMP64) { 
	if (uiMode=="none") {
	   MediaPlayer.ShowControls=false;
	   MediaPlayer.ShowTracker=false;
	   MediaPlayer.EnableTracker=false;
	   MediaPlayer.ShowPositionControls=false;
	   MediaPlayer.EnablePositionControls=false;
	   MediaPlayer.ShowStatusBar=false;
	} 
    if (uiMode=="mini") {
	   MediaPlayer.ShowControls=true;
	   MediaPlayer.ShowTracker=false;
	   MediaPlayer.EnableTracker=false;
	   MediaPlayer.ShowPositionControls=false;
	   MediaPlayer.EnablePositionControls=false;
	   MediaPlayer.ShowStatusBar=true;
	}  
	if (uiMode=="full") {
	   MediaPlayer.ShowControls=true;
	   MediaPlayer.ShowTracker=true;
	   MediaPlayer.EnableTracker=true;
	   MediaPlayer.ShowPositionControls=true;
	   MediaPlayer.EnablePositionControls=true;
	   MediaPlayer.ShowStatusBar=true;
	}
 }
 else
 {
	// If using v7+ interface set through applet's setXXX routine or
	// by setting property directly
	if (fAppletRunning)
		document.MediaPlayer.setUiMode(uiMode);
	else
		MediaPlayer.uiMode=uiMode;
 }
}


//---------------------------------------------------------------------------
// Name: get_uiMode
// Purpose: Wrapper function for getting current uiMode of the Media Player.
//---------------------------------------------------------------------------
function get_uiMode()
{
 // Note: Per WMP SDK, uiMode is a string:  "none", "mini", "full"
 // If using the Netscape plugin access properties through GetXXX routines.
 if (fPluginRunning) { 
	if (document.MediaPlayer.GetShowControls()==false &&
	    document.MediaPlayer.GetShowTracker()==false &&
	    document.MediaPlayer.GetEnableTracker()==false && 
	    document.MediaPlayer.GetShowPositionControls()==false && 
	    document.MediaPlayer.GetEnablePositionControls()==false )
    return("none");

    if (document.MediaPlayer.GetShowControls()==true &&
	    document.MediaPlayer.GetShowTracker()==false && 
	    document.MediaPlayer.GetEnableTracker()==false &&
	    document.MediaPlayer.GetShowPositionControls()==false &&
	    document.MediaPlayer.GetEnablePositionControls()==false)
	return("mini");   

	if (document.MediaPlayer.GetShowControls()==true &&
	    document.MediaPlayer.GetShowTracker()==true &&
	    document.MediaPlayer.GetEnableTracker()==true &&
	    document.MediaPlayer.GetShowPositionControls()==true &&
	    document.MediaPlayer.GetEnablePositionControls()==true)
	return("full");   

    return("unknown");
 }
 else
 // If accessing the old 6.4 properties
 if (fHasWMP64) {
 	   	    
	if (MediaPlayer.ShowControls==false &&
	    MediaPlayer.ShowTracker==false &&
	    MediaPlayer.EnableTracker==false && 
	    MediaPlayer.ShowPositionControls==false && 
	    MediaPlayer.EnablePositionControls==false )
    return("none");

    if (MediaPlayer.ShowControls==true &&
	    MediaPlayer.ShowTracker==false && 
	    MediaPlayer.EnableTracker==false &&
	    MediaPlayer.ShowPositionControls==false &&
	    MediaPlayer.EnablePositionControls==false)
	return("mini");   

	if (MediaPlayer.ShowControls==true &&
	    MediaPlayer.ShowTracker==true &&
	    MediaPlayer.EnableTracker==true &&
	    MediaPlayer.ShowPositionControls==true &&
	    MediaPlayer.EnablePositionControls==true)
	return("full");   

    return("unknown");
 }
 else
 { 
    // Accessing later v7+ interface either through applet's getXXX 
    // routines or directly
    if (fAppletRunning)
		return(document.MediaPlayer.getUiMode()); 
	else	
		return(MediaPlayer.uiMode);
 }
}


//------------------------------------------------------------------
// Name: ToggleMode
// Purpose:  Using get_uiMode and set_uiMode this  function cycles 
//           through the UI modes of the player control when called.
//-------------------------------------------------------------------
function ToggleMode()
{
   var Mode = get_uiMode();
   if (Mode=="none") set_uiMode("mini");
   if (Mode=="mini") set_uiMode("full");
   if (Mode=="full") set_uiMode("none");   
}


//----------------------------------------------------------------------
// Name: GetPlayerState
// Purpose:  Returns a string describing the NewState number specified.
//----------------------------------------------------------------------
function GetPlayerState(NewState)
{
 if (fPluginRunning || fHasWMP64)
 {
	if (NewState>=0 && NewState<=8)
	  return ps64Array[NewState];
	else
	  return "mpUndefined - Windows Media Player is in an undefined state.";
 }	  
 else
  {
	if (NewState>=0 && NewState<=11)
	  return psArray[NewState];
	else
	  return "Undefined - Windows Media Player is in an undefined state.";
  }	  
}