AdobeTagManager.js

/**
 * Performs the tracking calls to Adobe Tag Manager.
 * @module AdobeTagManager
 * @class
 * @internal
 */
class AdobeTagManager {
    constructor(options = {}) {
        this.options = options;
        this.name = "Adobe Tag Manager";
    }
    /**
     *
     * @method pageView
     * @param {String} eventName
     * @param {Object} params
     * @returns {Promise}
     * @internal
     */
    pageView(...args) {
        return this.track(...args);
    }
    /**
     *
     * @method track
     * @param {String} eventName
     * @param {Object} params
     * @returns {Promise}
     * @internal
     */
    track(eventName, params) {
        return new Promise((resolve, reject) => {
            this._load()
                .then(satellite => {
                    this._satellite = this._satellite || satellite;
                    this._track(eventName, params);
                    resolve({
                        eventName,
                        params
                    });
                })
                .catch(error => {
                    console.error("Omniture: Failed to load seed file", error);
                    reject(error);
                });
        });
    }
    /**
     *
     * @method _track
     * @param {String} eventName
     * @param {Object} params
     * @protected
     */
    _track(eventName, params) {
        this._satellite.data.customVars = {};
        this._satellite.setVar(params);
        this._satellite.track(eventName);
    }
    /**
     *
     * @method _load
     * @protected
     */
    _load() {
        return (
            this._promise ||
            (this._promise = new Promise((resolve, reject) => {
                if (window._satellite) {
                    resolve(window._satellite);
                } else {
                    const script = document.createElement("script");

                    script.onload = () => {
                        this._addPageBottom();
                        resolve(window._satellite);
                    };

                    script.onerror = error => {
                        reject(error);
                    };

                    script.src = this.options.seedFile;
                    document.head.appendChild(script);
                }
            }))
        );
    }
    /**
     *
     * @method _addPageBottom
     * @protected
     */
    _addPageBottom() {
        const body = document.body;
        const script = document.createElement("script");
        // Lets add to page so Adobe consultant knows we've added the pageBottom() call.
        const scriptContent = `
            "use strict";

            var _satellite = window._satellite;

            if (_satellite) {
                _satellite.pageBottom();
            }
        `;

        script.text = scriptContent;
        return body.appendChild(script);
    }
}

export default AdobeTagManager;