/**
* FlashLauncher
* Michael Bagur
*
*
**/

// -----------------------------------------------------------------------------
// Globals
var requiredMajorVersion = 9;
var requiredMinorVersion = 0;
var requiredRevision = 0;

var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;
// -----------------------------------------------------------------------------


var FlashPlayer = {
	logger: log4js.getLogger("FlashPlayer"),
	
	log: function(level, message) {
		FlashPlayer.logger.log(level,message);
	}
}

var FlashLauncher = {
	
	/** 
	* Insert flash in the page
	* 
	* arguments: infos {
	*    fileName :                swf file name
	*    height :                  200 by default
	*    width :                   200 by default
	*    path :                    path to the swf
	*    id :                      swf id if different from filename
	*    wmode :                   transparent by default
	*    allowFullScreen :         true by default
	*    allowScriptAccess :       sameDomain by default
	*    target :                  container's id where to insert the swf
	*    parameters :              flashvars parameters object
	* }
	**/
	insert: function(infos) {
		
		if(!infos) infos = {};
		if(!infos.fileName) {
			alert("missing file name");
		}
		if(!infos.height) infos.height = 200;
		if(!infos.width) infos.width = 200;
		if(!infos.path) infos.path = "";
		if(!infos.id) infos.id = infos.fileName;
		if(!infos.wmode) infos.wmode = "window";
		if(!infos.allowFullScreen) infos.allowFullScreen = true;
		if(!infos.allowScriptAccess) infos.allowScriptAccess = "sameDomain";
		if(!infos.target) infos.target = false;
		
		var flashvars = "";
		if(infos.parameters) {
			var first = true;
			for(param in infos.parameters) {
				if(!first) flashvars+="&";
				flashvars+=param+"="+infos.parameters[param];
				first = false;
			}
		}
		
		// Version check for the Flash Player that has the ability to start Player Product Install (6.0r65)
		var hasProductInstall = FlashLauncher.checkFlashVersion(6, 0, 65);
		// Version check based upon the values defined in globals
		var hasRequestedVersion = FlashLauncher.checkFlashVersion(requiredMajorVersion, requiredMinorVersion, requiredRevision);

		if ( hasProductInstall && !hasRequestedVersion ) {
			
			FlashLauncher.onBadVersion();
		
		} else if (hasRequestedVersion) {
			// if we've detected an acceptable version
			// embed the Flash Content SWF when all tests are passed

			var hasNewVersion = FlashLauncher.checkFlashVersion(9, 0, 115);
			if (hasNewVersion) {

				FlashLauncher.runContent(
						"src", infos.path+infos.fileName,
						"width", infos.width,
						"height", infos.height,
						"align", "middle",
						"id", infos.id,
						"quality", "high",
						"bgcolor", "#ffffff",
						"name", infos.id,
						"flashvars", flashvars,
						"wmode", infos.wmode,
						"allowFullScreen",infos.allowFullScreen,
						"allowScriptAccess",infos.allowScriptAccess,
						"type", "application/x-shockwave-flash",
						"pluginspage", "http://www.adobe.com/go/getflashplayer",
						"target",infos.target
					);
				} else {
					FlashLauncher.runContent(
						"src", infos.path+infos.fileName,
						"width", infos.width,
						"height", infos.height,
						"align", "middle",
						"id", infos.id,
						"quality", "high",
						"bgcolor", "#ffffff",
						"name", infos.id,
						"flashvars", flashvars,
						"allowFullScreen",infos.allowFullScreen,
						"allowScriptAccess",infos.allowScriptAccess,
						"type", "application/x-shockwave-flash",
						"pluginspage", "http://www.adobe.com/go/getflashplayer",
						"target",infos.target
					);
				}
		  } else {  // flash is too old or we can't detect the plugin
		  	FlashLauncher.onNotInstalled();
		  }
	},
		
	controlVersionWithActiveX: function() {
		var version;
		var axo;
		var e;
	
		/* NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry */
		try {
			// version will be set for 7.X or greater players
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
			version = axo.GetVariable("$version");
		} 
		catch (ignoredException) {}
	
		if (!version) {
			try {
				// version will be set for 6.X players only
				axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
				
				// installed player is some revision of 6.0
				// GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
				// so we have to be careful. 
				
				// default to the first public version
				version = "WIN 6,0,21,0";
	
				// throws if AllowScripAccess does not exist (introduced in 6.0r47)		
				axo.AllowScriptAccess = "always";
	
				// safe to call for 6.0r47 or greater
				version = axo.GetVariable("$version");
	
			} 
			catch (ignoredException) {}
		}
	
		if (!version) {
			try {
				// version will be set for 4.X or 5.X player
				axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
				version = axo.GetVariable("$version");
			} 
			catch (ignoredException) {}
		}
	
		if (!version) {
			try {
				// version will be set for 3.X player
				axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
				version = "WIN 3,0,18,0";
			} 
			catch (ignoredException) {}
		}
	
		if (!version) {
			try {
				// version will be set for 2.X player
				axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
				version = "WIN 2,0,0,11";
			} catch (noVersionFoundException) {
				version = -1;
			}
		}
		
		return version;
	},
	
	/** JavaScript helper required to detect Flash Player PlugIn version information */
	getFlashVersion: function(){
		var flashVer = -1;
	
		// NS/Opera version >= 3 check for Flash plugin in plugin array
		if (navigator.plugins != null && navigator.plugins.length > 0) {
			if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
				var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
				var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
				var descArray = flashDescription.split(" ");
				var tempArrayMajor = descArray[2].split(".");			
				var versionMajor = tempArrayMajor[0];
				var versionMinor = tempArrayMajor[1];
				var versionRevision = descArray[3];
				if (versionRevision == "") {
					versionRevision = descArray[4];
				}
				if (versionRevision[0] == "d") {
					versionRevision = versionRevision.substring(1);
				} else if (versionRevision[0] == "r") {
					versionRevision = versionRevision.substring(1);
					if (versionRevision.indexOf("d") > 0) {
						versionRevision = versionRevision.substring(0, versionRevision.indexOf("d"));
					}
				}
				var flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
			}
		}
		// MSN/WebTV 2.6 supports Flash 4
		else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
		// WebTV 2.5 supports Flash 3
		else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
		// older WebTV supports Flash 2
		else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
		else if ( isIE && isWin && !isOpera ) {
			flashVer = FlashLauncher.controlVersionWithActiveX();
		}	
		return flashVer;
	},
	
	// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
	checkFlashVersion: function(reqMajorVer, reqMinorVer, reqRevision) {
	
		versionStr = FlashLauncher.getFlashVersion();
		
		
		if (versionStr == -1 ) {
			return false;
		} else if (versionStr != 0) {
			if(isIE && isWin && !isOpera) {
				// Given "WIN 2,0,0,11"
				tempArray         = versionStr.split(" "); 	// ["WIN", "2,0,0,11"]
				var tempString        = tempArray[1];			// "2,0,0,11"
				versionArray      = tempString.split(",");	// ['2', '0', '0', '11']
			} else {
				versionArray      = versionStr.split(".");
			}
			var versionMajor      = versionArray[0];
			var versionMinor      = versionArray[1];
			var versionRevision   = versionArray[2];
	
	        	// is the major.revision >= requested major.revision AND the minor version >= requested minor
			if (versionMajor > parseFloat(reqMajorVer)) {
				return true;
			} else if (versionMajor == parseFloat(reqMajorVer)) {
				if (versionMinor > parseFloat(reqMinorVer))
					return true;
				else if (versionMinor == parseFloat(reqMinorVer)) {
					if (versionRevision >= parseFloat(reqRevision))
						return true;
				}
			}
			return false;
		}
	},
	
	addExtension: function(src, ext) {
	  if (src.indexOf('?') != -1) {
	       return src.replace(/\?/, ext+'?'); 
	   } else {
	   	   return src + ext;
	   }
	},
	
	generateObject: function(objAttrs, params, embedAttrs, target) { 
	    var str = '';
	    if (isIE && isWin && !isOpera)
	    {
	  		str += '<object ';
	  		for (var i in objAttrs)
	  			str += i + '="' + objAttrs[i] + '" ';
	  		str += '>';
	  		for (var i in params)
	  			str += '<param name="' + i + '" value="' + params[i] + '" /> ';
	  		str += '</object>';
	    } else {
	  		str += '<embed ';
	  		for (var i in embedAttrs)
	  			str += i + '="' + embedAttrs[i] + '" ';
	  		str += '> </embed>';
	    }
	
		if(!target) {
			document.write(str);
		} else {
			target.innerHTML = str;
		}
	},
	
	runContent: function() {
	  var ret = 
	    FlashLauncher.getArguments(
	      arguments, 
	      ".swf", 
	      "movie", 
	      "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000",
	      "application/x-shockwave-flash"
	    );
	  FlashLauncher.generateObject(ret.objAttrs, ret.params, ret.embedAttrs, ret.target);
	},
	
	getArguments: function(args, ext, srcParamName, classid, mimeType){
	  var ret = new Object();
	  ret.embedAttrs = new Object();
	  ret.params = new Object();
	  ret.objAttrs = new Object();
	  ret.target = null;
	  for (var i=0; i < args.length; i=i+2){
	    var currArg = args[i].toLowerCase();    
	
	    switch (currArg){	
	      case "classid":
	        break;
	      case "pluginspage":
	        ret.embedAttrs[args[i]] = args[i+1];
	        break;
	      case "src":
	      case "movie":	
	        args[i+1] = FlashLauncher.addExtension(args[i+1], ext);
	        ret.embedAttrs["src"] = args[i+1];
	        ret.params[srcParamName] = args[i+1];
	        break;
	      case "target":
	       ret.target = document.getElementById(args[i+1]);
	       break;
	      case "onafterupdate":
	      case "onbeforeupdate":
	      case "onblur":
	      case "oncellchange":
	      case "onclick":
	      case "ondblClick":
	      case "ondrag":
	      case "ondragend":
	      case "ondragenter":
	      case "ondragleave":
	      case "ondragover":
	      case "ondrop":
	      case "onfinish":
	      case "onfocus":
	      case "onhelp":
	      case "onmousedown":
	      case "onmouseup":
	      case "onmouseover":
	      case "onmousemove":
	      case "onmouseout":
	      case "onkeypress":
	      case "onkeydown":
	      case "onkeyup":
	      case "onload":
	      case "onlosecapture":
	      case "onpropertychange":
	      case "onreadystatechange":
	      case "onrowsdelete":
	      case "onrowenter":
	      case "onrowexit":
	      case "onrowsinserted":
	      case "onstart":
	      case "onscroll":
	      case "onbeforeeditfocus":
	      case "onactivate":
	      case "onbeforedeactivate":
	      case "ondeactivate":
	      case "type":
	      case "codebase":
	        ret.objAttrs[args[i]] = args[i+1];
	        break;
	      case "id":
	      case "width":
	      case "height":
	      case "align":
	      case "vspace": 
	      case "hspace":
	      case "class":
	      case "title":
	      case "accesskey":
	      case "name":
	      case "tabindex":
	        ret.embedAttrs[args[i]] = ret.objAttrs[args[i]] = args[i+1];
	        break;
	      default:
	        ret.embedAttrs[args[i]] = ret.params[args[i]] = args[i+1];
	    }
	  }
	  ret.objAttrs["classid"] = classid;
	  if (mimeType) ret.embedAttrs["type"] = mimeType;
	  return ret;
	},
	
	check: function() {
	
		var hasProductInstall = FlashLauncher.checkFlashVersion(6, 0, 65);
		var hasRequestedVersion = FlashLauncher.checkFlashVersion(requiredMajorVersion, requiredMinorVersion, requiredRevision);
		
		if ( hasProductInstall && !hasRequestedVersion ) {
		
			FlashLauncher.onBadVersion();
			
		} else if (!hasProductInstall) {
		
			FlashLauncher.onNotInstalled();
			
		}
	
	},
	
	onNotInstalled: function() {
		var alternateContent = ''
	  	+ 'This content requires the Adobe Flash Player. '
	   	+ '<a href=http://www.adobe.com/go/getflash/>Get Flash</a>';
		document.write(alternateContent);  // insert non-flash content
	},
	
	onBadVersion: function() {
		
		logger.warn("Old flash version");
		
		// DO NOT MODIFY THE FOLLOWING FOUR LINES
		// Location visited after installation is complete if installation is required
		var MMPlayerType = (isIE == true) ? "ActiveX" : "PlugIn";
		var MMredirectURL = window.location;
	    document.title = document.title.slice(0, 47) + " - Flash Player Installation";
	    var MMdoctitle = document.title;

		FlashLauncher.runContent(
			"src", "/swf/playerProductInstall",
			"FlashVars", "MMredirectURL="+MMredirectURL+'&MMplayerType='+MMPlayerType+'&MMdoctitle='+MMdoctitle+"",
			"width", "680",
			"height", "455",
			"align", "middle",
			"id", "STPlayer",
			"quality", "high",
			"bgcolor", "#869ca7",
			"name", "STPlayer",
			"allowScriptAccess","sameDomain",
			"type", "application/x-shockwave-flash",
			"pluginspage", "http://www.adobe.com/go/getflashplayer"
		);
	}

}