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grigs/browserdetect.js

Created March 13, 2012 17:12
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Apple's Browser Detection Script - prettified from http://images.apple.com/global/scripts/browserdetect.js
Raw
browserdetect.js
if (typeof (AC) === "undefined") {
AC = {}
}
AC.Detector = {
getAgent: function () {
return navigator.userAgent.toLowerCase()
},
isMac: function (c) {
var d = c || this.getAgent();
return !!d.match(/mac/i)
},
isSnowLeopard: function (c) {
if (typeof console != "undefined") {
console.warn('Instead of AC.Detector.isSnowLeopard, please use AC.Detector.macOSAtLeastVersion("10.6").')
}
var d = c || this.getAgent();
return !!d.match(/mac os x 10_6/i)
},
macOSVersion: function (g) {
var h = g || this.getAgent();
if (!this.isMac(h)) {
return null
}
var f = h.match(/(mac os x )([\d\._]*)/i);
if (f == null) {
return f
}
if ( !! f[2].match(/\./)) {
f = f[2].split(".")
} else {
f = f[2].split("_")
}
for (var e = 0; e < f.length;
e++) {
f[e] = parseInt(f[e])
}
return f
},
macOSAtLeastVersion: function (h, i) {
if (typeof h == "undefined") {
return false
}
var g = this.macOSVersion(i);
if (g == null) {
return false
}
if (typeof h == "string") {
h = h.replace(".", "_").split("_")
}
for (var j = 0; j < h.length; j++) {
var f = parseInt(g[j]);
if (isNaN(f)) {
f = 0
}
if (parseInt(h[j]) > f) {
return false
}
}
return true
},
isWin: function (c) {
var d = c || this.getAgent();
return !!d.match(/win/i)
},
winVersion: function (f) {
var d = f || this.getAgent();
if (this.isWin(d)) {
var e = d.match(/nt\s*([\d\.]*)/);
if (e && e[1]) {
return parseFloat(e[1])
}
return true
}
return false
},
winAtLeastVersion: function (f, d) {
if (typeof f == "undefined") {
return false
}
f = parseFloat(f);
if (f === NaN) {
return false
}
var e = this.winVersion(d);
if (e === null || e === false || e === true) {
return false
}
return (f <= e)
},
isWin2k: function (c) {
var d = c || this.getAgent();
return this.isWin(d) && (d.match(/nt\s*5/i))
},
isWinVista: function (c) {
var d = c || this.getAgent();
return this.isWin(d) && (d.match(/nt\s*6\.0([0-9]{0,2})?/i))
},
isWebKit: function (c) {
if (this._isWebKit === undefined) {
var d = c || this.getAgent();
this._isWebKit = !! d.match(/AppleWebKit/i);
this.isWebKit = function () {
return this._isWebKit
}
}
return this._isWebKit
},
isSafari2: function (f) {
if (typeof console != "undefined") {
console.warn("Instead of AC.Detector.isSafari2(), please use AC.Detector.isWebKit().")
}
var d = f || this.getAgent();
if (this._isSafari2 === undefined) {
if (!this.isWebKit(d)) {
this._isSafari2 = false
} else {
var e = parseInt(parseFloat(d.substring(d.lastIndexOf("safari/") + 7)), 10);
this._isSafari2 = (e >= 419)
}
this.isSafari2 = function () {
return this._isSafari2
}
}
return this._isSafari2
},
isChrome: function (c) {
if (this._isChrome === undefined) {
var d = c || this.getAgent();
this._isChrome = !! d.match(/Chrome/i);
this.isChrome = function () {
return this._isChrome
}
}
return this._isChrome
},
isiPhone: function (c) {
if (typeof console != "undefined") {
console.warn("Instead of AC.Detector.isiPhone(), please use AC.Detector.isMobile().")
}
var d = c || this.getAgent();
return this.isMobile(d)
},
iPhoneOSVersion: function (k) {
if (typeof console != "undefined") {
console.warn("Instead of AC.Detector.iPhoneOSVersion(), please use AC.Detector.iOSVersion().")
}
var l = k || this.getAgent(),
h = this.isMobile(l),
j, i, g;
if (h) {
var j = l.match(/.*CPU ([\w|\s]+) like/i);
if (j && j[1]) {
i = j[1].split(" ");
g = i[2].split("_");
return g
} else {
return [1]
}
}
return null
},
isiPad: function (c) {
var d = c || this.getAgent();
return !!(this.isWebKit(d) && d.match(/ipad/i))
},
isMobile: function (c) {
var d = c || this.getAgent();
return this.isWebKit(d) && (d.match(/Mobile/i) && !this.isiPad(d))
},
_iOSVersion: null,
iOSVersion: function () {
if (this._iOSVersion === null) {
this._iOSVersion = (AC.Detector.isMobile() || AC.Detector.isiPad()) ? parseFloat(navigator.userAgent.match(/os ([\d_]*)/i)[1].replace("_", ".")) : false
}
return this._iOSVersion
},
isOpera: function (c) {
var d = c || this.getAgent();
return !!d.match(/opera/i)
},
isIE: function (c) {
var d = c || this.getAgent();
return !!d.match(/msie/i)
},
isIEStrict: function (c) {
var d = c || this.getAgent();
return d.match(/msie/i) && !this.isOpera(d)
},
isIE8: function (f) {
var d = f || this.getAgent();
var e = d.match(/msie\D*([\.\d]*)/i);
if (e && e[1]) {
version = e[1]
}
return (+version >= 8)
},
isFirefox: function (c) {
var d = c || this.getAgent();
return !!d.match(/firefox/i)
},
isiTunesOK: function (c) {
var d = c || this.getAgent();
if (this.isMac(d)) {
return true
}
if (this.winAtLeastVersion(5.1, d)) {
return true
}
return false
},
_isQTInstalled: undefined,
isQTInstalled: function () {
if (this._isQTInstalled === undefined) {
var e = false;
if (navigator.plugins && navigator.plugins.length) {
for (var d = 0; d < navigator.plugins.length;
d++) {
var f = navigator.plugins[d];
if (f.name.indexOf("QuickTime") > -1) {
e = true
}
}
} else {
if (typeof (execScript) != "undefined") {
qtObj = false;
execScript('on error resume next: qtObj = IsObject(CreateObject("QuickTimeCheckObject.QuickTimeCheck.1"))', "VBScript");
e = qtObj
}
}
this._isQTInstalled = e
}
return this._isQTInstalled
},
getQTVersion: function () {
var f = "0";
if (navigator.plugins && navigator.plugins.length) {
for (var h = 0; h < navigator.plugins.length;
h++) {
var g = navigator.plugins[h];
var e = g.name.match(/quicktime\D*([\.\d]*)/i);
if (e && e[1]) {
f = e[1]
}
}
} else {
if (typeof (execScript) != "undefined") {
ieQTVersion = null;
execScript('on error resume next: ieQTVersion = CreateObject("QuickTimeCheckObject.QuickTimeCheck.1").QuickTimeVersion', "VBScript");
if (ieQTVersion) {
f = ieQTVersion.toString(16);
f = [f.charAt(0), f.charAt(1), f.charAt(2)].join(".")
}
}
}
return f
},
isQTCompatible: function (j, h) {
function f(c, a) {
var d = parseInt(c[0], 10);
if (isNaN(d)) {
d = 0
}
var b = parseInt(a[0], 10);
if (isNaN(b)) {
b = 0
}
if (d === b) {
if (c.length > 1) {
return f(c.slice(1), a.slice(1))
} else {
return true
}
} else {
if (d < b) {
return true
} else {
return false
}
}
}
var i = j.split(/\./);
var g = h ? h.split(/\./) : this.getQTVersion().split(/\./);
return f(i, g)
},
isValidQTAvailable: function (b) {
return this.isQTInstalled() && this.isQTCompatible(b)
},
isSBVDPAvailable: function (b) {
return false
},
_svgAsBackground: null,
svgAsBackground: function (f) {
if (this._svgAsBackground === null) {
var d = function () {
AC.Detector._svgAsBackground = true;
if (typeof (f) == "function") {
f()
}
};
var e = document.createElement("img");
e.setAttribute("src", "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNzUiIGhlaWdodD0iMjc1Ij48L3N2Zz4%3D");
if (e.complete) {
e.style.visibility = "hidden";
e.style.position = "absolute";
document.body.appendChild(e);
window.setTimeout(function () {
AC.Detector._svgAsBackground = false;
if (e.width >= 100) {
document.body.removeChild(e);
d()
} else {
document.body.removeChild(e)
}
}, 1)
} else {
this._svgAsBackground = false;
e.onload = d
}
} else {
if (this._svgAsBackground && typeof (f) == "function") {
f()
}
}
return this._svgAsBackground
},
_style: null,
_prefixes: null,
_preFixes: null,
_css: null,
isCSSAvailable: function (i) {
if (!this._style) {
this._style = document.createElement("browserdetect").style
}
if (!this._prefixes) {
this._prefixes = "-webkit- -moz- -o- -ms- -khtml- ".split(" ")
}
if (!this._preFixes) {
this._preFixes = "Webkit Moz O ms Khtml ".split(" ")
}
if (!this._css) {
this._css = {}
}
i = i.replace(/([A-Z]+)([A-Z][a-z])/g, "$1-$2").replace(/([a-z\d])([A-Z])/g, "$1-$2").replace(/^(\-*webkit|\-*moz|\-*o|\-*ms|\-*khtml)\-/, "").toLowerCase();
switch (i) {
case "gradient":
if (this._css.gradient !== undefined) {
return this._css.gradient
}
var i = "background-image:",
l = "gradient(linear,left top,right bottom,from(#9f9),to(white));",
m = "linear-gradient(left top,#9f9, white);";
this._style.cssText = (i + this._prefixes.join(l + i) + this._prefixes.join(m + i)).slice(0, -i.length);
this._css.gradient = (this._style.backgroundImage.indexOf("gradient") !== -1);
return this._css.gradient;
case "inset-box-shadow":
if (this._css["inset-box-shadow"] !== undefined) {
return this._css["inset-box-shadow"]
}
var i = "box-shadow:",
j = "#fff 0 1px 1px inset;";
this._style.cssText = this._prefixes.join(i + j);
this._css["inset-box-shadow"] = (this._style.cssText.indexOf("inset") !== -1);
return this._css["inset-box-shadow"];
default:
var n = i.split("-"),
r = n.length,
o, p, q;
if (n.length > 0) {
i = n[0];
for (p = 1; p < r; p++) {
i += n[p].substr(0, 1).toUpperCase() + n[p].substr(1)
}
}
o = i.substr(0, 1).toUpperCase() + i.substr(1);
if (this._css[i] !== undefined) {
return this._css[i]
}
for (q = this._preFixes.length - 1; q >= 0; q--) {
if (this._style[this._preFixes[q] + i] !== undefined || this._style[this._preFixes[q] + o] !== undefined) {
this._css[i] = true;
return true
}
}
return false
}
return false
},
_supportsThreeD: false,
supportsThreeD: function () {
try {
this._supportsThreeD = false;
if ("styleMedia" in window) {
this._supportsThreeD = window.styleMedia.matchMedium("(-webkit-transform-3d)")
} else {
if ("media" in window) {
this._supportsThreeD = window.media.matchMedium("(-webkit-transform-3d)")
}
}
if (!this._supportsThreeD) {
if (!document.getElementById("supportsThreeDStyle")) {
var d = document.createElement("style");
d.id = "supportsThreeDStyle";
d.textContent = "@media (transform-3d),(-o-transform-3d),(-moz-transform-3d),(-ms-transform-3d),(-webkit-transform-3d) { #supportsThreeD { height:3px } }";
document.querySelector("head").appendChild(d)
}
if (!(div = document.querySelector("#supportsThreeD"))) {
div = document.createElement("div");
div.id = "supportsThreeD";
document.body.appendChild(div)
}
this._supportsThreeD = (div.offsetHeight === 3)
}
return this._supportsThreeD
} catch (c) {
return false
}
},
_hasGyro: null,
_testingForGyro: false,
hasGyro: function () {
if (this._hasGyro !== null) {
return this._hasGyro
}
if ("DeviceOrientationEvent" in window && window.DeviceOrientationEvent !== null) {
if (this._testingForGyro === false) {
this._testingForGyro = true;
var b = this;
this.boundTestingForGyro = function (a) {
b.testingForGyro(a)
};
window.addEventListener("deviceorientation", this.boundTestingForGyro, true);
this._testGyroTimeout = window.setTimeout(function () {
this._hasGyro = false
}.bind(this), 250)
}
return this._hasGyro
} else {
return this._hasGyro = false
}
},
testingForGyro: function (b) {
if (this._hasGyro === false) {
return this._hasGyro
} else {
if (typeof b.gamma !== "undefined" && typeof b.beta !== "undefined") {
this._hasGyro = true
} else {
this._hasGyro = false
}
window.clearTimeout(this._testGyroTimeout);
window.removeEventListener("deviceorientation", this.boundTestingForGyro, true);
delete this.boundTestingForGyro
}
},
_isiPadWithGyro: null,
isiPadWithGyro: function () {
if (this._isiPadWithGyro === false || !this.isiPad()) {
return false
} else {
return this._isiPadWithGyro = this.hasGyro()
}
},
_hasLocalStorage: null,
hasLocalStorage: function () {
if (this._hasLocalStorage !== null) {
return this._hasLocalStorage
}
try {
if (typeof localStorage !== "undefined" && "setItem" in localStorage) {
localStorage.setItem("ac_browser_detect", "test");
this._hasLocalStorage = true;
localStorage.removeItem("ac_browser_detect", "test")
} else {
this._hasLocalStorage = false
}
} catch (b) {
this._hasLocalStorage = false
}
return this._hasLocalStorage
},
_hasSessionStorage: null,
hasSessionStorage: function () {
if (this._hasSessionStorage !== null) {
return this._hasSessionStorage
}
try {
if (typeof sessionStorage !== "undefined" && "setItem" in sessionStorage) {
sessionStorage.setItem("ac_browser_detect", "test");
this._hasSessionStorage = true;
sessionStorage.removeItem("ac_browser_detect", "test")
} else {
this._hasSessionStorage = false
}
} catch (b) {
this._hasSessionStorage = false
}
return this._hasSessionStorage
},
_hasCookies: null,
hasCookies: function () {
if (this._hasCookies !== null) {
return this._hasCookies
}
this._hasCookies = ("cookie" in document && !! navigator.cookieEnabled) ? true : false;
return this._hasCookies
}
};
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