Facebook's new Audience ad tracking script

fbevents.js

/*1464382852,,JIT Construction: v2361294,en_US*/

/**
 * Copyright Facebook Inc.
 *
 * Licensed under the Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0
 */
try {
    (function(a, b, c, d) {
        'use strict';
        var e = "2.5.0",
            f = 'https://www.facebook.com/tr/',
            g = '/fbevents.',
            h = {
                IDENTITY: 'plugins.identity.js'
            },
            i = {},
            j = [],
            k = null,
            l = null,
            m = /^\d+$/,
            n = {
                allowDuplicatePageViews: false
            },
            o = function(ra) {
                var sa = {
                    exports: ra
                };
                'use strict';
                var ta = 'deep',
                    ua = 'shallow';

                function va() {
                    this.list = [];
                }
                va.prototype = {
                    append: function(xa, ya) {
                        this._append(encodeURIComponent(xa), ya, ta);
                    },
                    _append: function(xa, ya, za) {
                        if (Object(ya) !== ya) {
                            this._appendPrimitive(xa, ya);
                        } else if (za === ta) {
                            this._appendObject(xa, ya);
                        } else this._appendPrimitive(xa, wa(ya));
                    },
                    _appendPrimitive: function(xa, ya) {
                        if (ya != null) this.list.push([xa, ya]);
                    },
                    _appendObject: function(xa, ya) {
                        for (var za in ya)
                            if (ya.hasOwnProperty(za)) {
                                var ab = xa + '[' + encodeURIComponent(za) + ']';
                                this._append(ab, ya[za], ua);
                            }
                    },
                    each: function(xa) {
                        var ya = this.list;
                        for (var za = 0, ab = ya.length; za < ab; za++) xa(ya[za][0], ya[za][1]);
                    },
                    toQueryString: function() {
                        var xa = [];
                        this.each(function(ya, za) {
                            xa.push(ya + '=' + encodeURIComponent(za));
                        });
                        return xa.join('&');
                    }
                };

                function wa(xa) {
                    if (typeof JSON === 'undefined' || JSON === null || !JSON.stringify) {
                        return Object.prototype.toString.call(xa);
                    } else return JSON.stringify(xa);
                }
                sa.exports = va;
                return sa.exports;
            }({}),
            p = function(ra) {
                var sa = {
                    exports: ra
                };
                'use strict';
                var ta = 'console',
                    ua = 'error',
                    va = 'Facebook Pixel Error',
                    wa = 'Facebook Pixel Warning',
                    xa = 'warn',
                    ya = Object.prototype.toString,
                    za = !('addEventListener' in b),
                    ab = function() {},
                    bb = a[ta] || {},
                    cb = a.postMessage || ab;

                function db(ib) {
                    return Array.isArray ? Array.isArray(ib) : ya.call(ib) === '[object Array]';
                }

                function eb(ib) {
                    cb({
                        action: 'FB_LOG',
                        logType: va,
                        logMessage: ib
                    }, '*');
                    if (ua in bb) bb[ua](va + ': ' + ib);
                }

                function fb(ib) {
                    cb({
                        action: 'FB_LOG',
                        logType: wa,
                        logMessage: ib
                    }, '*');
                    if (xa in bb) bb[xa](wa + ': ' + ib);
                }

                function gb(ib, jb, kb) {
                    jb = za ? 'on' + jb : jb;
                    var lb = za ? 'attachEvent' : 'addEventListener',
                        mb = za ? 'detachEvent' : 'removeEventListener',
                        nb = function() {
                            ib[mb](jb, nb, false);
                            kb();
                        };
                    ib[lb](jb, nb, false);
                }

                function hb(ib, jb, kb) {
                    var lb = ib[jb];
                    ib[jb] = function() {
                        var mb = lb.apply(this, arguments);
                        kb.apply(this, arguments);
                        return mb;
                    };
                }
                ra.isArray = db;
                ra.logError = eb;
                ra.logWarning = fb;
                ra.listenOnce = gb;
                ra.injectMethod = hb;
                return sa.exports;
            }({}),
            q = function(ra) {
                var sa = {
                    exports: ra
                };
                'use strict';
                var ta = /^[+-]?\d+(\.\d+)?$/,
                    ua = 'number',
                    va = 'currency_code',
                    wa = {
                        AED: 1,
                        ARS: 1,
                        AUD: 1,
                        BOB: 1,
                        BRL: 1,
                        CAD: 1,
                        CHF: 1,
                        CLP: 1,
                        CNY: 1,
                        COP: 1,
                        CRC: 1,
                        CZK: 1,
                        DKK: 1,
                        EUR: 1,
                        GBP: 1,
                        GTQ: 1,
                        HKD: 1,
                        HNL: 1,
                        HUF: 1,
                        IDR: 1,
                        ILS: 1,
                        INR: 1,
                        ISK: 1,
                        JPY: 1,
                        KRW: 1,
                        MOP: 1,
                        MXN: 1,
                        MYR: 1,
                        NIO: 1,
                        NOK: 1,
                        NZD: 1,
                        PEN: 1,
                        PHP: 1,
                        PLN: 1,
                        PYG: 1,
                        QAR: 1,
                        RON: 1,
                        RUB: 1,
                        SAR: 1,
                        SEK: 1,
                        SGD: 1,
                        THB: 1,
                        TRY: 1,
                        TWD: 1,
                        USD: 1,
                        UYU: 1,
                        VEF: 1,
                        VND: 1,
                        ZAR: 1
                    },
                    xa = {
                        value: {
                            type: ua,
                            isRequired: true
                        },
                        currency: {
                            type: va,
                            isRequired: true
                        }
                    },
                    ya = {
                        PageView: {},
                        ViewContent: {},
                        Search: {},
                        AddToCart: {},
                        AddToWishlist: {},
                        InitiateCheckout: {},
                        AddPaymentInfo: {},
                        Purchase: {
                            validationSchema: xa
                        },
                        Lead: {},
                        CompleteRegistration: {},
                        CustomEvent: {
                            validationSchema: {
                                event: {
                                    isRequired: true
                                }
                            }
                        }
                    },
                    za = Object.prototype.hasOwnProperty;

                function ab(cb, db) {
                    this.eventName = cb;
                    this.params = db || {};
                    this.error = null;
                    this.warnings = [];
                }
                ab.prototype = {
                    validate: function() {
                        var cb = this.eventName,
                            db = ya[cb];
                        if (!db) return this._error('Unsupported event: ' + cb);
                        var eb = db.validationSchema;
                        for (var fb in eb)
                            if (za.call(eb, fb)) {
                                var gb = eb[fb];
                                if (gb.isRequired === true && !za.call(this.params, fb)) return this._error('Required parameter "' + fb + '" is missing for event "' + cb + '"');
                                if (gb.type)
                                    if (!this._validateParam(fb, gb.type)) return this._error('Parameter "' + fb + '" is invalid for event "' + cb + '"');
                            }
                        return this;
                    },
                    _validateParam: function(cb, db) {
                        var eb = this.params[cb];
                        switch (db) {
                            case ua:
                                var fb = ta.test(eb);
                                if (fb && Number(eb) < 0) this.warnings.push('Parameter "' + cb + '" is negative for event "' + this.eventName + '"');
                                return fb;
                            case va:
                                return wa[eb.toUpperCase()] === 1;
                        }
                        return true;
                    },
                    _error: function(cb) {
                        this.error = cb;
                        return this;
                    }
                };

                function bb(cb, db) {
                    return new ab(cb, db).validate();
                }
                ra.validateEvent = bb;
                return sa.exports;
            }({}),
            r = null,
            s = a.fbq;
        if (!s) return p.logError('Pixel code is not installed correctly on this page');
        var t = Array.prototype.slice,
            u = Object.prototype.hasOwnProperty,
            v = c.href,
            w = false,
            x = false,
            y = a.top !== a,
            z = [],
            aa = {},
            ba = b.referrer,
            ca = {};

        function da(ra) {
            for (var sa in ra)
                if (u.call(ra, sa)) this[sa] = ra[sa];
        }

        function ea(ra) {
            if (!j.length) {
                var sa = t.call(arguments),
                    ta = sa.length === 1 && p.isArray(sa[0]);
                if (ta) sa = sa[0];
                if (ra.slice(0, 6) === 'report') {
                    var ua = ra.slice(6);
                    if (ua === 'CustomEvent') {
                        ua = (sa[1] || {}).event || ua;
                        sa = ['trackCustom', ua].concat(sa.slice(1));
                    } else sa = ['track', ua].concat(sa.slice(1));
                }
                ra = sa.shift();
                switch (ra) {
                    case 'addPixelId':
                        w = true;
                        return fa.apply(this, sa);
                    case 'init':
                        x = true;
                        return fa.apply(this, sa);
                    case 'track':
                        if (m.test(sa[0])) return ia.apply(this, sa);
                        if (ta) return ha.apply(this, sa);
                        return ga.apply(this, sa);
                    case 'trackCustom':
                        return ha.apply(this, sa);
                    case 'send':
                        return ja.apply(this, sa);
                    default:
                        p.logError('Invalid or unknown method name "' + ra + '"');
                }
            } else s.queue.push(arguments);
        }
        s.callMethod = ea;

        function fa(ra, sa) {
            if (u.call(aa, ra)) {
                p.logError('Duplicate Pixel ID: ' + ra);
                return;
            }
            var ta = {
                id: ra,
                userData: sa || {}
            };
            if (sa != null) pa('IDENTITY');
            z.push(ta);
            aa[ra] = ta;
        }

        function ga(ra, sa) {
            sa = sa || {};
            var ta = q.validateEvent(ra, sa);
            if (ta.error) p.logError(ta.error);
            if (ta.warnings)
                for (var ua = 0; ua < ta.warnings.length; ua++) p.logWarning(ta.warnings[ua]);
            if (ra === 'CustomEvent') ra = sa.event;
            ha.call(this, ra, sa);
        }

        function ha(ra, sa) {
            var ta = this instanceof da ? this : n,
                ua = ra === 'PageView';
            for (var va = 0, wa = z.length; va < wa; va++) {
                var xa = z[va];
                if (ua && ta.allowDuplicatePageViews === false && ca[xa.id] === true) continue;
                ka(xa, ra, sa);
                if (ua) ca[xa.id] = true;
            }
        }

        function ia(ra, sa) {
            ka(null, ra, sa);
        }

        function ja(ra, sa) {
            for (var ta = 0, ua = z.length; ta < ua; ta++) ka(z[ta], ra, sa);
        }

        function ka(ra, sa, ta) {
            ra = ra || {};
            var ua = new o();
            ua.append('id', ra.id);
            ua.append('ev', sa);
            ua.append('dl', v);
            ua.append('rl', ba);
            ua.append('if', y);
            ua.append('ts', new Date().valueOf());
            ua.append('cd', ta);
            ua.append('ud', ra.userData);
            ua.append('v', e || s.version);
            ua.append('a', s.agent);
            var va = b.visibilityState;
            if (va !== undefined) ua.append('pv', va);
            var wa = ua.toQueryString();
            if (2048 > (f + '?' + wa).length) {
                la(f, wa);
            } else ma(f, ua);
        }

        function la(ra, sa) {
            var ta = new Image();
            ta.src = ra + '?' + sa;
        }

        function ma(ra, sa) {
            var ta = 'fb' + Math.random().toString().replace('.', ''),
                ua = b.createElement('form');
            ua.method = 'post';
            ua.action = ra;
            ua.target = ta;
            ua.acceptCharset = 'utf-8';
            ua.style.display = 'none';
            var va = !!(a.attachEvent && !a.addEventListener),
                wa = va ? '<iframe name="' + ta + '">' : 'iframe',
                xa = b.createElement(wa);
            xa.src = 'javascript:false';
            xa.id = ta;
            xa.name = ta;
            ua.appendChild(xa);
            p.listenOnce(xa, 'load', function() {
                sa.each(function(ya, za) {
                    var ab = b.createElement('input');
                    ab.name = ya;
                    ab.value = za;
                    ua.appendChild(ab);
                });
                p.listenOnce(xa, 'load', function() {
                    ua.parentNode.removeChild(ua);
                });
                ua.submit();
            });
            b.body.appendChild(ua);
        }

        function na() {
            while (s.queue.length && !j.length) {
                var ra = s.queue.shift();
                ea.apply(s, ra);
            }
        }

        function oa() {
            k = b.getElementsByTagName('script');
            for (var ra = 0; ra < k.length && !l; ra++) {
                var sa = k[ra].src.split(g);
                if (sa.length > 1) l = sa[0];
            }
        }

        function pa(ra) {
            var sa = h[ra];
            if (sa)
                if (i[ra]) {
                    i[ra]({
                        pixels: z
                    });
                } else if (j.indexOf(ra) === -1) {
                if (l == null) oa();
                j.push(ra);
                var ta = b.createElement('script');
                ta.src = l + g + sa;
                ta.async = true;
                var ua = k[0];
                if (ua) ua.parentNode.insertBefore(ta, ua);
            }
        }
        s.loadPlugin = pa;

        function qa(ra, sa) {
            if (ra && sa) {
                i[ra] = sa;
                sa({
                    pixels: z
                });
                var ta = j.indexOf(ra);
                if (ta > -1) j.splice(ta, 1);
                if (!j.length) na();
            }
        }
        s.registerPlugin = qa;
        if (s.pixelId) {
            w = true;
            fa(s.pixelId);
        }
        na();
        if (w && x || a.fbq !== a._fbq) p.logWarning('Multiple pixels with conflicting versions were detected on this page');
        if (z.length > 1) p.logWarning('Multiple different pixels were detected on this page');
        (function ra() {
            if (s.disablePushState === true) return;
            if (!d.pushState || !d.replaceState) return;
            var sa = function() {
                ba = v;
                v = c.href;
                if (v === ba) return;
                var ta = new da({
                    allowDuplicatePageViews: true
                });
                ea.call(ta, 'trackCustom', 'PageView');
            };
            p.injectMethod(d, 'pushState', sa);
            p.injectMethod(d, 'replaceState', sa);
            a.addEventListener('popstate', sa, false);
        })();
    })(window, document, location, history);
} catch (e) {
    new Image().src = "https:\/\/www.facebook.com\/" + 'common/scribe_endpoint.php?c=jssdk_error&m=' + encodeURIComponent('{"error":"LOAD", "extra": {"name":"' + e.name + '","line":"' + (e.lineNumber || e.line) + '","script":"' + (e.fileName || e.sourceURL || e.script) + '","stack":"' + (e.stackTrace || e.stack) + '","revision":"2361294","namespace":"FB","message":"' + e.message + '"}}');
}