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Javascript Flash Detector

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Join Date: Mar 2008
Posts: 1
#1: Mar 7 '08
Hey everyone, i've been playing around with trying to get some scripts to work with detecting whether flash player is installed on your computer or not. I found a flash detection kit on the adobe site which had a client side detection method using javascript.

Basically what im trying to get it to do is if flash player is installed, use the style property display="none" to hide my static content, and if flash is not installed hide the flash content using display="none".

Here's my page.

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  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  2. <html xmlns="http://www.w3.org/1999/xhtml">
  3. <head>
  4. <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
  5. <title>Flash Test</title>
  6. </head>
  7.     <script src="flash_check.js" language="javascript" type="text/javascript"></script>
  8.     <script language="JavaScript" type="text/javascript">
  9.         var requiredMajorVersion = 9;
  10.         var requiredMinorVersion = 0;
  11.         var requiredRevision = 0;
  12.     </script>
  13. <body>
  14.     <script language="JavaScript" type="text/javascript">
  15.         var hasReqestedVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
  16.         if (hasReqestedVersion) {
  17.             document.getElementById("html").style.display="none";
  18.         } else {
  19.             document.getElementById("flash").style.display="none";
  20.         }
  21.     </script>
  22.     <div id="html">
  23.         This is the Static Content
  24.         <br />
  25.     </div>
  26.     <div id="flash">
  27.         This is the Flash Content
  28.         <br />
  29.     </div>
  30. </body>
  31. </html>
  32.  
This is the js file that Adobe included with there detection pack. I haven't changed anything in this file.

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  1. // Flash Player Version Detection - Rev 1.5
  2. // Detect Client Browser type
  3. // Copyright(c) 2005-2006 Adobe Macromedia Software, LLC. All rights reserved.
  4. var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
  5. var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
  6. var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;
  7.  
  8. function ControlVersion()
  9. {
  10.     var version;
  11.     var axo;
  12.     var e;
  13.  
  14.     // NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry
  15.  
  16.     try {
  17.         // version will be set for 7.X or greater players
  18.         axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
  19.         version = axo.GetVariable("$version");
  20.     } catch (e) {
  21.     }
  22.  
  23.     if (!version)
  24.     {
  25.         try {
  26.             // version will be set for 6.X players only
  27.             axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
  28.  
  29.             // installed player is some revision of 6.0
  30.             // GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
  31.             // so we have to be careful. 
  32.  
  33.             // default to the first public version
  34.             version = "WIN 6,0,21,0";
  35.  
  36.             // throws if AllowScripAccess does not exist (introduced in 6.0r47)        
  37.             axo.AllowScriptAccess = "always";
  38.  
  39.             // safe to call for 6.0r47 or greater
  40.             version = axo.GetVariable("$version");
  41.  
  42.         } catch (e) {
  43.         }
  44.     }
  45.  
  46.     if (!version)
  47.     {
  48.         try {
  49.             // version will be set for 4.X or 5.X player
  50.             axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
  51.             version = axo.GetVariable("$version");
  52.         } catch (e) {
  53.         }
  54.     }
  55.  
  56.     if (!version)
  57.     {
  58.         try {
  59.             // version will be set for 3.X player
  60.             axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
  61.             version = "WIN 3,0,18,0";
  62.         } catch (e) {
  63.         }
  64.     }
  65.  
  66.     if (!version)
  67.     {
  68.         try {
  69.             // version will be set for 2.X player
  70.             axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
  71.             version = "WIN 2,0,0,11";
  72.         } catch (e) {
  73.             version = -1;
  74.         }
  75.     }
  76.  
  77.     return version;
  78. }
  79.  
  80. // JavaScript helper required to detect Flash Player PlugIn version information
  81. function GetSwfVer(){
  82.     // NS/Opera version >= 3 check for Flash plugin in plugin array
  83.     var flashVer = -1;
  84.  
  85.     if (navigator.plugins != null && navigator.plugins.length > 0) {
  86.         if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
  87.             var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
  88.             var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;            
  89.             var descArray = flashDescription.split(" ");
  90.             var tempArrayMajor = descArray[2].split(".");
  91.             var versionMajor = tempArrayMajor[0];
  92.             var versionMinor = tempArrayMajor[1];
  93.             if ( descArray[3] != "" ) {
  94.                 tempArrayMinor = descArray[3].split("r");
  95.             } else {
  96.                 tempArrayMinor = descArray[4].split("r");
  97.             }
  98.             var versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
  99.             var flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
  100.         }
  101.     }
  102.     // MSN/WebTV 2.6 supports Flash 4
  103.     else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
  104.     // WebTV 2.5 supports Flash 3
  105.     else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
  106.     // older WebTV supports Flash 2
  107.     else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
  108.     else if ( isIE && isWin && !isOpera ) {
  109.         flashVer = ControlVersion();
  110.     }    
  111.     return flashVer;
  112. }
  113.  
  114. // When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
  115. function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
  116. {
  117.     versionStr = GetSwfVer();
  118.     if (versionStr == -1 ) {
  119.         return false;
  120.     } else if (versionStr != 0) {
  121.         if(isIE && isWin && !isOpera) {
  122.             // Given "WIN 2,0,0,11"
  123.             tempArray         = versionStr.split(" ");     // ["WIN", "2,0,0,11"]
  124.             tempString        = tempArray[1];            // "2,0,0,11"
  125.             versionArray      = tempString.split(",");    // ['2', '0', '0', '11']
  126.         } else {
  127.             versionArray      = versionStr.split(".");
  128.         }
  129.         var versionMajor      = versionArray[0];
  130.         var versionMinor      = versionArray[1];
  131.         var versionRevision   = versionArray[2];
  132.  
  133.             // is the major.revision >= requested major.revision AND the minor version >= requested minor
  134.         if (versionMajor > parseFloat(reqMajorVer)) {
  135.             return true;
  136.         } else if (versionMajor == parseFloat(reqMajorVer)) {
  137.             if (versionMinor > parseFloat(reqMinorVer))
  138.                 return true;
  139.             else if (versionMinor == parseFloat(reqMinorVer)) {
  140.                 if (versionRevision >= parseFloat(reqRevision))
  141.                     return true;
  142.             }
  143.         }
  144.         return false;
  145.     }
  146. }
  147.  
  148. function AC_AddExtension(src, ext)
  149. {
  150.   if (src.indexOf('?') != -1)
  151.     return src.replace(/\?/, ext+'?'); 
  152.   else
  153.     return src + ext;
  154. }
  155.  
  156. function AC_Generateobj(objAttrs, params, embedAttrs) 
  157. { 
  158.     var str = '';
  159.     if (isIE && isWin && !isOpera)
  160.     {
  161.           str += '<object ';
  162.           for (var i in objAttrs)
  163.               str += i + '="' + objAttrs[i] + '" ';
  164.           for (var i in params)
  165.              str += '><param name="' + i + '" value="' + params[i] + '" /> ';
  166.           str += '></object>';
  167.     } else {
  168.           str += '<embed ';
  169.           for (var i in embedAttrs)
  170.               str += i + '="' + embedAttrs[i] + '" ';
  171.           str += '> </embed>';
  172.     }
  173.     document.write(str);
  174.  
  175.  }
  176.  
  177. function AC_FL_RunContent(){
  178.   var ret = 
  179.     AC_GetArgs
  180.     (  arguments, ".swf", "movie", "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
  181.      , "application/x-shockwave-flash"
  182.     );
  183.   AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
  184. }
  185.  
  186. function AC_GetArgs(args, ext, srcParamName, classid, mimeType){
  187.   var ret = new Object();
  188.   ret.embedAttrs = new Object();
  189.   ret.params = new Object();
  190.   ret.objAttrs = new Object();
  191.   for (var i=0; i < args.length; i=i+2){
  192.     var currArg = args[i].toLowerCase();    
  193.  
  194.     switch (currArg){    
  195.       case "classid":
  196.         break;
  197.       case "pluginspage":
  198.         ret.embedAttrs[args[i]] = args[i+1];
  199.         break;
  200.       case "src":
  201.       case "movie":    
  202.         args[i+1] = AC_AddExtension(args[i+1], ext);
  203.         ret.embedAttrs["src"] = args[i+1];
  204.         ret.params[srcParamName] = args[i+1];
  205.         break;
  206.       case "onafterupdate":
  207.       case "onbeforeupdate":
  208.       case "onblur":
  209.       case "oncellchange":
  210.       case "onclick":
  211.       case "ondblClick":
  212.       case "ondrag":
  213.       case "ondragend":
  214.       case "ondragenter":
  215.       case "ondragleave":
  216.       case "ondragover":
  217.       case "ondrop":
  218.       case "onfinish":
  219.       case "onfocus":
  220.       case "onhelp":
  221.       case "onmousedown":
  222.       case "onmouseup":
  223.       case "onmouseover":
  224.       case "onmousemove":
  225.       case "onmouseout":
  226.       case "onkeypress":
  227.       case "onkeydown":
  228.       case "onkeyup":
  229.       case "onload":
  230.       case "onlosecapture":
  231.       case "onpropertychange":
  232.       case "onreadystatechange":
  233.       case "onrowsdelete":
  234.       case "onrowenter":
  235.       case "onrowexit":
  236.       case "onrowsinserted":
  237.       case "onstart":
  238.       case "onscroll":
  239.       case "onbeforeeditfocus":
  240.       case "onactivate":
  241.       case "onbeforedeactivate":
  242.       case "ondeactivate":
  243.       case "type":
  244.       case "codebase":
  245.       case "id":
  246.         ret.objAttrs[args[i]] = args[i+1];
  247.         break;
  248.       case "width":
  249.       case "height":
  250.       case "align":
  251.       case "vspace": 
  252.       case "hspace":
  253.       case "class":
  254.       case "title":
  255.       case "accesskey":
  256.       case "name":
  257.       case "tabindex":
  258.         ret.embedAttrs[args[i]] = ret.objAttrs[args[i]] = args[i+1];
  259.         break;
  260.       default:
  261.         ret.embedAttrs[args[i]] = ret.params[args[i]] = args[i+1];
  262.     }
  263.   }
  264.   ret.objAttrs["classid"] = classid;
  265.   if (mimeType) ret.embedAttrs["type"] = mimeType;
  266.   return ret;
  267. }
  268.  
Any help would be appreaciated. :)



acoder's Avatar
Site Moderator
  
Join Date: Nov 2006
Location: UK
Posts: 14,581
#2: Mar 8 '08

re: Javascript Flash Detector

Check that the Adobe detection script gives the correct version number, etc. or if uninstalled, what output is given. Based on that, you can use the script to show/hide content.
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