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function isScrollable(el) {\n var isScrollableY = hasScrollableSpace(el, 'Y') && canOverflow(el, 'Y');\n var isScrollableX = hasScrollableSpace(el, 'X') && canOverflow(el, 'X');\n return isScrollableY || isScrollableX;\n }\n /**\n * finds scrollable parent of an element\n * @method findScrollableParent\n * @param {Node} el\n * @returns {Node} el\n */\n\n\n function findScrollableParent(el) {\n while (el !== d.body && isScrollable(el) === false) {\n el = el.parentNode || el.host;\n }\n\n return el;\n }\n /**\n * self invoked function that, given a context, steps through scrolling\n * @method step\n * @param {Object} context\n * @returns {undefined}\n */\n\n\n function step(context) {\n var time = now();\n var value;\n var currentX;\n var currentY;\n var elapsed = (time - context.startTime) / SCROLL_TIME; // avoid elapsed times higher than one\n\n elapsed = elapsed > 1 ? 1 : elapsed; // apply easing to elapsed time\n\n value = ease(elapsed);\n currentX = context.startX + (context.x - 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w.scrollBy\n\n\n w.scrollBy = function () {\n // avoid action when no arguments are passed\n if (arguments[0] === undefined) {\n return;\n } // avoid smooth behavior if not required\n\n\n if (shouldBailOut(arguments[0])) {\n original.scrollBy.call(w, arguments[0].left !== undefined ? arguments[0].left : _typeof(arguments[0]) !== 'object' ? arguments[0] : 0, arguments[0].top !== undefined ? arguments[0].top : arguments[1] !== undefined ? arguments[1] : 0);\n return;\n } // LET THE SMOOTHNESS BEGIN!\n\n\n smoothScroll.call(w, d.body, ~~arguments[0].left + (w.scrollX || w.pageXOffset), ~~arguments[0].top + (w.scrollY || w.pageYOffset));\n }; // Element.prototype.scroll and Element.prototype.scrollTo\n\n\n Element.prototype.scroll = Element.prototype.scrollTo = function () {\n // avoid action when no arguments are passed\n if (arguments[0] === undefined) {\n return;\n } // avoid smooth behavior if not required\n\n\n if (shouldBailOut(arguments[0]) === true) {\n // if one number is passed, throw error to match Firefox implementation\n if (typeof arguments[0] === 'number' && arguments[1] === undefined) {\n throw new SyntaxError('Value could not be converted');\n }\n\n original.elementScroll.call(this, // use left prop, first number argument or fallback to scrollLeft\n arguments[0].left !== undefined ? ~~arguments[0].left : _typeof(arguments[0]) !== 'object' ? ~~arguments[0] : this.scrollLeft, // use top prop, second argument or fallback to scrollTop\n arguments[0].top !== undefined ? ~~arguments[0].top : arguments[1] !== undefined ? ~~arguments[1] : this.scrollTop);\n return;\n }\n\n var left = arguments[0].left;\n var top = arguments[0].top; // LET THE SMOOTHNESS BEGIN!\n\n smoothScroll.call(this, this, typeof left === 'undefined' ? this.scrollLeft : ~~left, typeof top === 'undefined' ? this.scrollTop : ~~top);\n }; // Element.prototype.scrollBy\n\n\n Element.prototype.scrollBy = function () {\n // avoid action when no arguments are passed\n if (arguments[0] === undefined) {\n return;\n } // avoid smooth behavior if not required\n\n\n if (shouldBailOut(arguments[0]) === true) {\n original.elementScroll.call(this, arguments[0].left !== undefined ? ~~arguments[0].left + this.scrollLeft : ~~arguments[0] + this.scrollLeft, arguments[0].top !== undefined ? ~~arguments[0].top + this.scrollTop : ~~arguments[1] + this.scrollTop);\n return;\n }\n\n this.scroll({\n left: ~~arguments[0].left + this.scrollLeft,\n top: ~~arguments[0].top + this.scrollTop,\n behavior: arguments[0].behavior\n });\n }; // Element.prototype.scrollIntoView\n\n\n Element.prototype.scrollIntoView = function () {\n // avoid smooth behavior if not required\n if (shouldBailOut(arguments[0]) === true) {\n original.scrollIntoView.call(this, arguments[0] === undefined ? true : arguments[0]);\n return;\n } // LET THE SMOOTHNESS BEGIN!\n\n\n var scrollableParent = findScrollableParent(this);\n var parentRects = scrollableParent.getBoundingClientRect();\n var clientRects = 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Analytics from \"../analytics\";\n\n// kick off the polyfill!\nsmoothscroll.polyfill();\n\nconst SplashImages = {\n data: {\n splashImageSelector: \".js-splash-image\",\n headerSelector: \"#tfs-daily-dose-header\",\n gtmEvent: \"click-splash-button\",\n gtmAction: \"click splash button\"\n },\n\n init() {\n this.scrollToHeader();\n },\n\n scrollToHeader() {\n const button = document.querySelector(\n `[data-scroll-target='${this.data.headerSelector}']`\n );\n if (button) {\n button.onclick = function didClick() {\n SplashImages.doScroll(button.getAttribute(\"data-scroll-target\"));\n SplashImages.sendGTMEvent(\n SplashImages.data.gtmAction,\n window.location.href\n );\n };\n }\n },\n\n doScroll(selector) {\n const target = document.querySelector(selector);\n const navBuffer = -60;\n SmoothScrollToTarget(target, navBuffer);\n },\n\n sendGTMEvent(action, label) {\n Analytics.track(SplashImages.data.gtmEvent, {\n action,\n label\n });\n }\n};\nexport default SplashImages;\n"],"sourceRoot":""}