device.js

LIMO.namespace('LIMO')(function (ns) {

    ns.Device = LIMO.extend(Object, {

        isIPhone: function () {
            return navigator.userAgent.indexOf('(iPhone;') != -1;
        },

        getIPhoneVersion: function(){
            if(!this.isIPhone()){
                throw new Error('is not iphone device');
            }

            var m = navigator.userAgent.match(/iPhone OS ([0-9]+)_/);
            return m[1];
        },

        isIPad: function () {
            return navigator.userAgent.indexOf('(iPad;') != -1;
        },

        isIPod: function () {
            return navigator.userAgent.indexOf('(iPod;') != -1;
        },

        isAndroid: function () {
            return navigator.userAgent.indexOf('Android') != -1;
        },

        isTizen: function(){
            return navigator.userAgent.indexOf('Tizen') != -1;
        },

        isPc: function () {
            if (!this.isMobileSize() && !this.isIPad() && !this.isAndroid()) {
                return true;
            }
            return false;
        },

        hasEvent: function(name){
            return (function () {
                return (name in this);
            })();
        },

        isTouch: function () {
            return this.hasEvent('ontouchstart');
        },

        getWidth: function () {
            return screen.width;
        },

        getHeight: function () {
            return screen.height;
        },

        isLandscape: function () {
            return Math.abs(window.orientation) === 90;
        },

        isMobileSize: function () {
            return this.getWidth() <= 640 && this.getHeight() <= 1136;
        }
    });


    ns.device = new ns.Device();
});