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/*
Copyright (c) Copyright (c) 2007, Carl S. Yestrau All rights reserved.
Code licensed under the BSD License: http://www.featureblend.com/license.txt
Version: 1.0.4
*/
var FlashDetect = new function(){
var self = this;
self.installed = false;
self.raw = "";
self.major = -1;
self.minor = -1;
self.revision = -1;
self.revisionStr = "";
var activeXDetectRules = [
{
"name":"ShockwaveFlash.ShockwaveFlash.7",
"version":function(obj){
return getActiveXVersion(obj);
}
},
{
"name":"ShockwaveFlash.ShockwaveFlash.6",
"version":function(obj){
var version = "6,0,21";
try{
obj.AllowScriptAccess = "always";
version = getActiveXVersion(obj);
}catch(err){}
return version;
}
},
{
"name":"ShockwaveFlash.ShockwaveFlash",
"version":function(obj){
return getActiveXVersion(obj);
}
}
];
/**
* Extract the ActiveX version of the plugin.
*
* @param {Object} The flash ActiveX object.
* @type String
*/
var getActiveXVersion = function(activeXObj){
var version = -1;
try{
version = activeXObj.GetVariable("$version");
}catch(err){}
return version;
};
/**
* Try and retrieve an ActiveX object having a specified name.
*
* @param {String} name The ActiveX object name lookup.
* @return One of ActiveX object or a simple object having an attribute of activeXError with a value of true.
* @type Object
*/
var getActiveXObject = function(name){
var obj = -1;
try{
obj = new ActiveXObject(name);
}catch(err){
obj = {activeXError:true};
}
return obj;
};
/**
* Parse an ActiveX $version string into an object.
*
* @param {String} str The ActiveX Object GetVariable($version) return value.
* @return An object having raw, major, minor, revision and revisionStr attributes.
* @type Object
*/
var parseActiveXVersion = function(str){
var versionArray = str.split(",");//replace with regex
return {
"raw":str,
"major":parseInt(versionArray[0].split(" ")[1], 10),
"minor":parseInt(versionArray[1], 10),
"revision":parseInt(versionArray[2], 10),
"revisionStr":versionArray[2]
};
};
/**
* Parse a standard enabledPlugin.description into an object.
*
* @param {String} str The enabledPlugin.description value.
* @return An object having raw, major, minor, revision and revisionStr attributes.
* @type Object
*/
var parseStandardVersion = function(str){
var descParts = str.split(/ +/);
var majorMinor = descParts[2].split(/\./);
var revisionStr = descParts[3];
return {
"raw":str,
"major":parseInt(majorMinor[0], 10),
"minor":parseInt(majorMinor[1], 10),
"revisionStr":revisionStr,
"revision":parseRevisionStrToInt(revisionStr)
};
};
/**
* Parse the plugin revision string into an integer.
*
* @param {String} The revision in string format.
* @type Number
*/
var parseRevisionStrToInt = function(str){
return parseInt(str.replace(/[a-zA-Z]/g, ""), 10) || self.revision;
};
/**
* Is the major version greater than or equal to a specified version.
*
* @param {Number} version The minimum required major version.
* @type Boolean
*/
self.majorAtLeast = function(version){
return self.major >= version;
};
/**
* Is the minor version greater than or equal to a specified version.
*
* @param {Number} version The minimum required minor version.
* @type Boolean
*/
self.minorAtLeast = function(version){
return self.minor >= version;
};
/**
* Is the revision version greater than or equal to a specified version.
*
* @param {Number} version The minimum required revision version.
* @type Boolean
*/
self.revisionAtLeast = function(version){
return self.revision >= version;
};
/**
* Is the version greater than or equal to a specified major, minor and revision.
*
* @param {Number} major The minimum required major version.
* @param {Number} (Optional) minor The minimum required minor version.
* @param {Number} (Optional) revision The minimum required revision version.
* @type Boolean
*/
self.versionAtLeast = function(major){
var properties = [self.major, self.minor, self.revision];
var len = Math.min(properties.length, arguments.length);
for(i=0; i<len; i++){
if(properties[i]>=arguments[i]){
if(i+1<len && properties[i]==arguments[i]){
continue;
}else{
return true;
}
}else{
return false;
}
}
};
/**
* Constructor, sets raw, major, minor, revisionStr, revision and installed public properties.
*/
self.FlashDetect = function(){
if(navigator.plugins && navigator.plugins.length>0){
var type = 'application/x-shockwave-flash';
var mimeTypes = navigator.mimeTypes;
if(mimeTypes && mimeTypes[type] && mimeTypes[type].enabledPlugin && mimeTypes[type].enabledPlugin.description){
var version = mimeTypes[type].enabledPlugin.description;
var versionObj = parseStandardVersion(version);
self.raw = versionObj.raw;
self.major = versionObj.major;
self.minor = versionObj.minor;
self.revisionStr = versionObj.revisionStr;
self.revision = versionObj.revision;
self.installed = true;
}
}else if(navigator.appVersion.indexOf("Mac")==-1 && window.execScript){
var version = -1;
for(var i=0; i<activeXDetectRules.length && version==-1; i++){
var obj = getActiveXObject(activeXDetectRules[i].name);
if(!obj.activeXError){
self.installed = true;
version = activeXDetectRules[i].version(obj);
if(version!=-1){
var versionObj = parseActiveXVersion(version);
self.raw = versionObj.raw;
self.major = versionObj.major;
self.minor = versionObj.minor;
self.revision = versionObj.revision;
self.revisionStr = versionObj.revisionStr;
}
}
}
}
}();
};
FlashDetect.JS_RELEASE = "1.0.4"; |