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(function(wndw) {
var Browsers, OS, Platform, Versions, browser_name, browser_version, os, platform;
Versions = {
Firefox: /firefox\/([\d\w\.\-]+)/i,
IE: /msie\s([\d\.]+[\d])/i,
Chrome: /chrome\/([\d\w\.\-]+)/i,
Safari: /version\/([\d\w\.\-]+)/i,
Ps3: /([\d\w\.\-]+)\)\s*$/i,
Psp: /([\d\w\.\-]+)\)?\s*$/i
};
Browsers = {
Konqueror: /konqueror/i,
Chrome: /chrome/i,
Safari: /safari/i,
IE: /msie/i,
Opera: /opera/i,
PS3: /playstation 3/i,
PSP: /playstation portable/i,
Firefox: /firefox/i
};
OS = {
WindowsVista: /windows nt 6\.0/i,
Windows7: /windows nt 6\.\d+/i,
Windows2003: /windows nt 5\.2/i,
WindowsXP: /windows nt 5\.1/i,
Windows2000: /windows nt 5\.0/i,
OSX: /os x (\d+)[._](\d+)/i,
Linux: /linux/i,
Wii: /wii/i,
PS3: /playstation 3/i,
PSP: /playstation portable/i,
Ipad: /\(iPad.*os (\d+)[._](\d+)/i,
Iphone: /\(iPhone.*os (\d+)[._](\d+)/i
};
Platform = {
Windows: /windows/i,
Mac: /macintosh/i,
Linux: /linux/i,
Wii: /wii/i,
Playstation: /playstation/i,
Ipad: /ipad/i,
Ipod: /ipod/i,
Iphone: /iphone/i,
Android: /android/i,
Blackberry: /blackberry/i
};
function UserAgent(source) {
if (source == null) {
source = navigator.userAgent;
}
this.source = source.replace(/^\s*/, '').replace(/\s*$/, '');
this.browser_name = browser_name(this.source);
this.browser_version = browser_version(this.source);
this.os = os(this.source);
this.platform = platform(this.source);
}
browser_name = function(string) {
if (Browsers.Konqueror.test(string)) {
return 'konqueror';
} else if (Browsers.Chrome.test(string)) {
return 'chrome';
} else if (Browsers.Safari.test(string)) {
return 'safari';
} else if (Browsers.IE.test(string)) {
return 'ie';
} else if (Browsers.Opera.test(string)) {
return 'opera';
} else if (Browsers.PS3.test(string)) {
return 'ps3';
} else if (Browsers.PSP.test(string)) {
return 'psp';
} else if (Browsers.Firefox.test(string)) {
return 'firefox';
} else {
return 'unknown';
}
};
browser_version = function(string) {
var regex;
switch (browser_name(string)) {
case 'chrome':
if (Versions.Chrome.test(string)) {
return RegExp.$1;
}
break;
case 'safari':
if (Versions.Safari.test(string)) {
return RegExp.$1;
}
break;
case 'firefox':
if (Versions.Firefox.test(string)) {
return RegExp.$1;
}
break;
case 'ie':
if (Versions.IE.test(string)) {
return RegExp.$1;
}
break;
case 'ps3':
if (Versions.Ps3.test(string)) {
return RegExp.$1;
}
break;
case 'psp':
if (Versions.Psp.test(string)) {
return RegExp.$1;
}
break;
default:
regex = /#\{name\}[\/ ]([\d\w\.\-]+)/i;
if (regex.test(string)) {
return RegExp.$1;
}
}
};
os = function(string) {
if (OS.WindowsVista.test(string)) {
return 'Windows Vista';
} else if (OS.Windows7.test(string)) {
return 'Windows 7';
} else if (OS.Windows2003.test(string)) {
return 'Windows 2003';
} else if (OS.WindowsXP.test(string)) {
return 'Windows XP';
} else if (OS.Windows2000.test(string)) {
return 'Windows 2000';
} else if (OS.Linux.test(string)) {
return 'Linux';
} else if (OS.Wii.test(string)) {
return 'Wii';
} else if (OS.PS3.test(string)) {
return 'Playstation';
} else if (OS.PSP.test(string)) {
return 'Playstation';
} else if (OS.OSX.test(string)) {
return string.match(OS.OSX)[0].replace('_', '.');
} else if (OS.Ipad.test(string)) {
return string.match(OS.Ipad)[0].replace('_', '.');
} else if (OS.Iphone.test(string)) {
return string.match(OS.Iphone)[0].replace('_', '.');
} else {
return 'unknown';
}
};
platform = function(string) {
if (Platform.Windows.test(string)) {
return "Microsoft Windows";
} else if (Platform.Mac.test(string)) {
return "Apple Mac";
} else if (Platform.Android.test(string)) {
return "Android";
} else if (Platform.Blackberry.test(string)) {
return "Blackberry";
} else if (Platform.Linux.test(string)) {
return "Linux";
} else if (Platform.Wii.test(string)) {
return "Wii";
} else if (Platform.Playstation.test(string)) {
return "Playstation";
} else if (Platform.Ipad.test(string)) {
return "iPad";
} else if (Platform.Ipod.test(string)) {
return "iPod";
} else if (Platform.Iphone.test(string)) {
return "iPhone";
} else {
return 'unknown';
}
};
function BrowserBanner($) {
if (!$) return;
function isSupportedBrowser() {
// Assume supported, and just return false for browser versions
// that we definitely have no interest in supporting.
var userAgent = new UserAgent();
if (userAgent.browser_name == 'ie' && userAgent.browser_version < 9 ) {
return false;
}
if (userAgent.browser_name == 'firefox' && userAgent.browser_version < 12) {
return false;
}
if (userAgent.browser_name == 'safari' && userAgent.browser_version < 5) {
return false;
}
return true;
}
function maybeShowBanner() {
if (!isSupportedBrowser()) {
if ($('.coursera-browser-banner').length > 0) return;
var $browserBanner = $('<div class="coursera-browser-banner">');
$browserBanner.css({
'text-align': 'center',
'font-size': '16px',
'padding': '10px 0px',
'background': '#FFEEA9',
'margin-top': '-100px',
'border-bottom': '1px solid #CCC'});
$browserBanner.html('You are using an unsupported browser, so some features may not work. <br> Please upgrade to a <a href="http://www.coursera.org/browsers">modern browser</a>.');
$(document.body).prepend($browserBanner);
$browserBanner.animate({
'margin-top': "+=100px"
}, 1000 )
}
}
$(document).ready(maybeShowBanner);
}
if (typeof define === "function" && define.amd) {
define(["jquery"], function ($) {
return new BrowserBanner($);
});
} else {
new BrowserBanner(wndw.$);
}
})(window);
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