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wp-content/plugins/gp-premium/general/js/smooth-scroll.js

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+/*!
+ * smooth-scroll v14.2.1: Animate scrolling to anchor links
+ * (c) 2018 Chris Ferdinandi
+ * MIT License
+ * http://github.com/cferdinandi/smooth-scroll
+ */
+
+/**
+ * closest() polyfill
+ * @link https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
+ */
+if (window.Element && !Element.prototype.closest) {
+	Element.prototype.closest = function(s) {
+		var matches = (this.document || this.ownerDocument).querySelectorAll(s),
+			i,
+			el = this;
+		do {
+			i = matches.length;
+			while (--i >= 0 && matches.item(i) !== el) {}
+		} while ((i < 0) && (el = el.parentElement));
+		return el;
+	};
+}
+
+/**
+ * CustomEvent() polyfill
+ * https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill
+ */
+(function () {
+
+	if (typeof window.CustomEvent === "function") return false;
+
+	function CustomEvent(event, params) {
+		params = params || { bubbles: false, cancelable: false, detail: undefined };
+		var evt = document.createEvent('CustomEvent');
+		evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+		return evt;
+	}
+
+	CustomEvent.prototype = window.Event.prototype;
+
+	window.CustomEvent = CustomEvent;
+})();
+/**
+ * requestAnimationFrame() polyfill
+ * By Erik Möller. Fixes from Paul Irish and Tino Zijdel.
+ * @link http://paulirish.com/2011/requestanimationframe-for-smart-animating/
+ * @link http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
+ * @license MIT
+ */
+(function() {
+	var lastTime = 0;
+	var vendors = ['ms', 'moz', 'webkit', 'o'];
+	for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
+		window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
+		window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] ||
+		                              window[vendors[x]+'CancelRequestAnimationFrame'];
+	}
+
+	if (!window.requestAnimationFrame) {
+		window.requestAnimationFrame = function(callback, element) {
+			var currTime = new Date().getTime();
+			var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+			var id = window.setTimeout((function() { callback(currTime + timeToCall); }),
+				timeToCall);
+			lastTime = currTime + timeToCall;
+			return id;
+		};
+	}
+
+	if (!window.cancelAnimationFrame) {
+		window.cancelAnimationFrame = function(id) {
+			clearTimeout(id);
+		};
+	}
+}());
+
+(function (root, factory) {
+	if (typeof define === 'function' && define.amd) {
+		define([], (function () {
+			return factory(root);
+		}));
+	} else if (typeof exports === 'object') {
+		module.exports = factory(root);
+	} else {
+		root.SmoothScroll = factory(root);
+	}
+})(typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : this, (function (window) {
+
+	'use strict';
+
+	//
+	// Default settings
+	//
+
+	var defaults = {
+		// Selectors
+		ignore: '[data-scroll-ignore]',
+		header: null,
+		topOnEmptyHash: true,
+
+		// Speed & Easing
+		speed: 500,
+		clip: true,
+		offset: 0,
+		easing: 'easeInOutCubic',
+		customEasing: null,
+
+		// History
+		updateURL: true,
+		popstate: true,
+
+		// Custom Events
+		emitEvents: true
+	};
+
+
+	//
+	// Utility Methods
+	//
+
+	/**
+	 * Check if browser supports required methods
+	 * @return {Boolean} Returns true if all required methods are supported
+	 */
+	var supports = function () {
+		return (
+			'querySelector' in document &&
+			'addEventListener' in window &&
+			'requestAnimationFrame' in window &&
+			'closest' in window.Element.prototype
+		);
+	};
+
+	/**
+	 * Merge two or more objects. Returns a new object.
+	 * @param {Object}   objects  The objects to merge together
+	 * @returns {Object}          Merged values of defaults and options
+	 */
+	var extend = function () {
+
+		// Variables
+		var extended = {};
+
+		// Merge the object into the extended object
+		var merge = function (obj) {
+			for (var prop in obj) {
+				if (obj.hasOwnProperty(prop)) {
+					extended[prop] = obj[prop];
+				}
+			}
+		};
+
+		// Loop through each object and conduct a merge
+		for (var i = 0; i < arguments.length; i++) {
+			merge(arguments[i]);
+		}
+
+		return extended;
+
+	};
+
+	/**
+	 * Check to see if user prefers reduced motion
+	 * @param  {Object} settings Script settings
+	 */
+	var reduceMotion = function (settings) {
+		if ('matchMedia' in window && window.matchMedia('(prefers-reduced-motion)').matches) {
+			return true;
+		}
+		return false;
+	};
+
+	/**
+	 * Get the height of an element.
+	 * @param  {Node} elem The element to get the height of
+	 * @return {Number}    The element's height in pixels
+	 */
+	var getHeight = function (elem) {
+		return parseInt(window.getComputedStyle(elem).height, 10);
+	};
+
+	/**
+	 * Decode a URI, with error check
+	 * @param  {String} hash The URI to decode
+	 * @return {String}      A decoded URI (or the original string if an error is thrown)
+	 */
+	var decode = function (hash) {
+		var decoded;
+		try {
+			decoded = decodeURIComponent(hash);
+		} catch(e) {
+			decoded = hash;
+		}
+		return decoded;
+	};
+
+	/**
+	 * Escape special characters for use with querySelector
+	 * @author Mathias Bynens
+	 * @link https://github.com/mathiasbynens/CSS.escape
+	 * @param {String} id The anchor ID to escape
+	 */
+	var escapeCharacters = function (id) {
+
+		// Remove leading hash
+		if (id.charAt(0) === '#') {
+			id = id.substr(1);
+		}
+
+		var string = String(id);
+		var length = string.length;
+		var index = -1;
+		var codeUnit;
+		var result = '';
+		var firstCodeUnit = string.charCodeAt(0);
+		while (++index < length) {
+			codeUnit = string.charCodeAt(index);
+			// Note: there’s no need to special-case astral symbols, surrogate
+			// pairs, or lone surrogates.
+
+			// If the character is NULL (U+0000), then throw an
+			// `InvalidCharacterError` exception and terminate these steps.
+			if (codeUnit === 0x0000) {
+				throw new InvalidCharacterError(
+					'Invalid character: the input contains U+0000.'
+				);
+			}
+
+			if (
+				// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
+				// U+007F, […]
+				(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
+				// If the character is the first character and is in the range [0-9]
+				// (U+0030 to U+0039), […]
+				(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
+				// If the character is the second character and is in the range [0-9]
+				// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
+				(
+					index === 1 &&
+					codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
+					firstCodeUnit === 0x002D
+				)
+			) {
+				// http://dev.w3.org/csswg/cssom/#escape-a-character-as-code-point
+				result += '\\' + codeUnit.toString(16) + ' ';
+				continue;
+			}
+
+			// If the character is not handled by one of the above rules and is
+			// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
+			// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
+			// U+005A), or [a-z] (U+0061 to U+007A), […]
+			if (
+				codeUnit >= 0x0080 ||
+				codeUnit === 0x002D ||
+				codeUnit === 0x005F ||
+				codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
+				codeUnit >= 0x0041 && codeUnit <= 0x005A ||
+				codeUnit >= 0x0061 && codeUnit <= 0x007A
+			) {
+				// the character itself
+				result += string.charAt(index);
+				continue;
+			}
+
+			// Otherwise, the escaped character.
+			// http://dev.w3.org/csswg/cssom/#escape-a-character
+			result += '\\' + string.charAt(index);
+
+		}
+
+		// Return sanitized hash
+		var hash;
+		try {
+			hash = decodeURIComponent('#' + result);
+		} catch(e) {
+			hash = '#' + result;
+		}
+		return hash;
+
+	};
+
+	/**
+	 * Calculate the easing pattern
+	 * @link https://gist.github.com/gre/1650294
+	 * @param {String} type Easing pattern
+	 * @param {Number} time Time animation should take to complete
+	 * @returns {Number}
+	 */
+	var easingPattern = function (settings, time) {
+		var pattern;
+
+		// Default Easing Patterns
+		if (settings.easing === 'easeInQuad') pattern = time * time; // accelerating from zero velocity
+		if (settings.easing === 'easeOutQuad') pattern = time * (2 - time); // decelerating to zero velocity
+		if (settings.easing === 'easeInOutQuad') pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
+		if (settings.easing === 'easeInCubic') pattern = time * time * time; // accelerating from zero velocity
+		if (settings.easing === 'easeOutCubic') pattern = (--time) * time * time + 1; // decelerating to zero velocity
+		if (settings.easing === 'easeInOutCubic') pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
+		if (settings.easing === 'easeInQuart') pattern = time * time * time * time; // accelerating from zero velocity
+		if (settings.easing === 'easeOutQuart') pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
+		if (settings.easing === 'easeInOutQuart') pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
+		if (settings.easing === 'easeInQuint') pattern = time * time * time * time * time; // accelerating from zero velocity
+		if (settings.easing === 'easeOutQuint') pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
+		if (settings.easing === 'easeInOutQuint') pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
+
+		// Custom Easing Patterns
+		if (!!settings.customEasing) pattern = settings.customEasing(time);
+
+		return pattern || time; // no easing, no acceleration
+	};
+
+	/**
+	 * Determine the document's height
+	 * @returns {Number}
+	 */
+	var getDocumentHeight = function () {
+		return Math.max(
+			document.body.scrollHeight, document.documentElement.scrollHeight,
+			document.body.offsetHeight, document.documentElement.offsetHeight,
+			document.body.clientHeight, document.documentElement.clientHeight
+		);
+	};
+
+	/**
+	 * Calculate how far to scroll
+	 * Clip support added by robjtede - https://github.com/cferdinandi/smooth-scroll/issues/405
+	 * @param {Element} anchor       The anchor element to scroll to
+	 * @param {Number}  headerHeight Height of a fixed header, if any
+	 * @param {Number}  offset       Number of pixels by which to offset scroll
+	 * @param {Boolean} clip         If true, adjust scroll distance to prevent abrupt stops near the bottom of the page
+	 * @returns {Number}
+	 */
+	var getEndLocation = function (anchor, headerHeight, offset, clip) {
+		var location = 0;
+		if (anchor.offsetParent) {
+			do {
+				location += anchor.offsetTop;
+				anchor = anchor.offsetParent;
+			} while (anchor);
+		}
+		location = Math.max(location - headerHeight - offset, 0);
+		if (clip) {
+			location = Math.min(location, getDocumentHeight() - window.innerHeight);
+		}
+ 		return location;
+	};
+
+	/**
+	 * Get the height of the fixed header
+	 * @param  {Node}   header The header
+	 * @return {Number}        The height of the header
+	 */
+	var getHeaderHeight = function (header) {
+		return !header ? 0 : (getHeight(header) + header.offsetTop);
+	};
+
+	/**
+	 * Update the URL
+	 * @param  {Node}    anchor  The anchor that was scrolled to
+	 * @param  {Boolean} isNum   If true, anchor is a number
+	 * @param  {Object}  options Settings for Smooth Scroll
+	 */
+	var updateURL = function (anchor, isNum, options) {
+
+		// Bail if the anchor is a number
+		if (isNum) return;
+
+		// Verify that pushState is supported and the updateURL option is enabled
+		if (!history.pushState || !options.updateURL) return;
+
+		// Update URL
+		history.pushState(
+			{
+				smoothScroll: JSON.stringify(options),
+				anchor: anchor.id
+			},
+			document.title,
+			anchor === document.documentElement ? '#top' : '#' + anchor.id
+		);
+
+	};
+
+	/**
+	 * Bring the anchored element into focus
+	 * @param {Node}     anchor      The anchor element
+	 * @param {Number}   endLocation The end location to scroll to
+	 * @param {Boolean}  isNum       If true, scroll is to a position rather than an element
+	 */
+	var adjustFocus = function (anchor, endLocation, isNum) {
+
+		// Is scrolling to top of page, blur
+		if (anchor === 0) {
+			document.body.focus();
+		}
+
+		// Don't run if scrolling to a number on the page
+		if (isNum) return;
+
+		// Otherwise, bring anchor element into focus
+		anchor.focus();
+		if (document.activeElement !== anchor) {
+			anchor.setAttribute('tabindex', '-1');
+			anchor.focus();
+			anchor.style.outline = 'none';
+		}
+		window.scrollTo(0 , endLocation);
+
+	};
+
+	/**
+	 * Emit a custom event
+	 * @param  {String} type    The event type
+	 * @param  {Object} options The settings object
+	 * @param  {Node}   anchor  The anchor element
+	 * @param  {Node}   toggle  The toggle element
+	 */
+	var emitEvent = function (type, options, anchor, toggle) {
+		if (!options.emitEvents || typeof window.CustomEvent !== 'function') return;
+		var event = new CustomEvent(type, {
+			bubbles: true,
+			detail: {
+				anchor: anchor,
+				toggle: toggle
+			}
+		});
+		document.dispatchEvent(event);
+	};
+
+
+	//
+	// SmoothScroll Constructor
+	//
+
+	var SmoothScroll = function (selector, options) {
+
+		//
+		// Variables
+		//
+
+		var smoothScroll = {}; // Object for public APIs
+		var settings, anchor, toggle, fixedHeader, headerHeight, eventTimeout, animationInterval;
+
+
+		//
+		// Methods
+		//
+
+		/**
+		 * Cancel a scroll-in-progress
+		 */
+		smoothScroll.cancelScroll = function (noEvent) {
+			cancelAnimationFrame(animationInterval);
+			animationInterval = null;
+			if (noEvent) return;
+			emitEvent('scrollCancel', settings);
+		};
+
+		/**
+		 * Start/stop the scrolling animation
+		 * @param {Node|Number} anchor  The element or position to scroll to
+		 * @param {Element}     toggle  The element that toggled the scroll event
+		 * @param {Object}      options
+		 */
+		smoothScroll.animateScroll = function (anchor, toggle, options) {
+
+			// Local settings
+			var animateSettings = extend(settings || defaults, options || {}); // Merge user options with defaults
+
+			// Selectors and variables
+			var isNum = Object.prototype.toString.call(anchor) === '[object Number]' ? true : false;
+			var anchorElem = isNum || !anchor.tagName ? null : anchor;
+			if (!isNum && !anchorElem) return;
+			var startLocation = window.pageYOffset; // Current location on the page
+			if (animateSettings.header && !fixedHeader) {
+				// Get the fixed header if not already set
+				fixedHeader = document.querySelector(animateSettings.header);
+			}
+			if (!headerHeight) {
+				// Get the height of a fixed header if one exists and not already set
+				headerHeight = getHeaderHeight(fixedHeader);
+			}
+			var endLocation = isNum ? anchor : getEndLocation(anchorElem, headerHeight, parseInt((typeof animateSettings.offset === 'function' ? animateSettings.offset(anchor, toggle) : animateSettings.offset), 10), animateSettings.clip); // Location to scroll to
+			var distance = endLocation - startLocation; // distance to travel
+			var documentHeight = getDocumentHeight();
+			var timeLapsed = 0;
+			var start, percentage, position;
+
+			/**
+			 * Stop the scroll animation when it reaches its target (or the bottom/top of page)
+			 * @param {Number} position Current position on the page
+			 * @param {Number} endLocation Scroll to location
+			 * @param {Number} animationInterval How much to scroll on this loop
+			 */
+			var stopAnimateScroll = function (position, endLocation) {
+
+				// Get the current location
+				var currentLocation = window.pageYOffset;
+
+				// Check if the end location has been reached yet (or we've hit the end of the document)
+				if (position == endLocation || currentLocation == endLocation || ((startLocation < endLocation && window.innerHeight + currentLocation) >= documentHeight)) {
+
+					// Clear the animation timer
+					smoothScroll.cancelScroll(true);
+
+					// Bring the anchored element into focus
+					adjustFocus(anchor, endLocation, isNum);
+
+					// Emit a custom event
+					emitEvent('scrollStop', animateSettings, anchor, toggle);
+
+					// Reset start
+					start = null;
+					animationInterval = null;
+
+					return true;
+
+				}
+			};
+
+			/**
+			 * Loop scrolling animation
+			 */
+			var loopAnimateScroll = function (timestamp) {
+				if (!start) { start = timestamp; }
+				timeLapsed += timestamp - start;
+				percentage = (timeLapsed / parseInt(animateSettings.speed, 10));
+				percentage = (percentage > 1) ? 1 : percentage;
+				position = startLocation + (distance * easingPattern(animateSettings, percentage));
+				window.scrollTo(0, Math.floor(position));
+				if (!stopAnimateScroll(position, endLocation)) {
+					animationInterval = window.requestAnimationFrame(loopAnimateScroll);
+					start = timestamp;
+				}
+			};
+
+			/**
+			 * Reset position to fix weird iOS bug
+			 * @link https://github.com/cferdinandi/smooth-scroll/issues/45
+			 */
+			if (window.pageYOffset === 0) {
+				window.scrollTo(0, 0);
+			}
+
+			// Update the URL
+			updateURL(anchor, isNum, animateSettings);
+
+			// Emit a custom event
+			emitEvent('scrollStart', animateSettings, anchor, toggle);
+
+			// Start scrolling animation
+			smoothScroll.cancelScroll(true);
+			window.requestAnimationFrame(loopAnimateScroll);
+
+		};
+
+		/**
+		 * If smooth scroll element clicked, animate scroll
+		 */
+		var clickHandler = function (event) {
+
+			// Don't run if the user prefers reduced motion
+			if (reduceMotion(settings)) return;
+
+			// Don't run if right-click or command/control + click
+			if (event.button !== 0 || event.metaKey || event.ctrlKey) return;
+
+			// Check if event.target has closest() method
+			// By @totegi - https://github.com/cferdinandi/smooth-scroll/pull/401/
+			if(!('closest' in event.target))return;
+
+			// Check if a smooth scroll link was clicked
+			toggle = event.target.closest(selector);
+			if (!toggle || toggle.tagName.toLowerCase() !== 'a' || event.target.closest(settings.ignore)) return;
+
+			// Only run if link is an anchor and points to the current page
+			if (toggle.hostname !== window.location.hostname || toggle.pathname !== window.location.pathname || !/#/.test(toggle.href)) return;
+
+			// Get an escaped version of the hash
+			var hash = escapeCharacters(decode(toggle.hash));
+
+			// Get the anchored element
+			var anchor = settings.topOnEmptyHash && hash === '#' ? document.documentElement : document.querySelector(hash);
+			anchor = !anchor && hash === '#top' ? document.documentElement : anchor;
+
+			// If anchored element exists, scroll to it
+			if (!anchor) return;
+			event.preventDefault();
+			smoothScroll.animateScroll(anchor, toggle);
+
+		};
+
+		/**
+		 * Animate scroll on popstate events
+		 */
+		var popstateHandler = function (event) {
+			// Stop if history.state doesn't exist (ex. if clicking on a broken anchor link).
+			// fixes `Cannot read property 'smoothScroll' of null` error getting thrown.
+			if (history.state === null) return;
+
+			// Only run if state is a popstate record for this instantiation
+			if (!history.state.smoothScroll || history.state.smoothScroll !== JSON.stringify(settings)) return;
+
+			// Only run if state includes an anchor
+			if (!history.state.anchor) return;
+
+			// Get the anchor
+			var anchor = document.querySelector(escapeCharacters(decode(history.state.anchor)));
+			if (!anchor) return;
+
+			// Animate scroll to anchor link
+			smoothScroll.animateScroll(anchor, null, {updateURL: false});
+
+		};
+
+		/**
+		 * On window scroll and resize, only run events at a rate of 15fps for better performance
+		 */
+		var resizeThrottler = function (event) {
+			if (!eventTimeout) {
+				eventTimeout = setTimeout((function() {
+					eventTimeout = null; // Reset timeout
+					headerHeight = getHeaderHeight(fixedHeader); // Get the height of a fixed header if one exists
+				}), 66);
+			}
+		};
+
+		/**
+		 * Destroy the current initialization.
+		 */
+		smoothScroll.destroy = function () {
+
+			// If plugin isn't already initialized, stop
+			if (!settings) return;
+
+			// Remove event listeners
+			document.removeEventListener('click', clickHandler, false);
+			window.removeEventListener('resize', resizeThrottler, false);
+			window.removeEventListener('popstate', popstateHandler, false);
+
+			// Cancel any scrolls-in-progress
+			smoothScroll.cancelScroll();
+
+			// Reset variables
+			settings = null;
+			anchor = null;
+			toggle = null;
+			fixedHeader = null;
+			headerHeight = null;
+			eventTimeout = null;
+			animationInterval = null;
+
+		};
+
+		/**
+		 * Initialize Smooth Scroll
+		 * @param {Object} options User settings
+		 */
+		smoothScroll.init = function (options) {
+
+			// feature test
+			if (!supports()) throw 'Smooth Scroll: This browser does not support the required JavaScript methods and browser APIs.';
+
+			// Destroy any existing initializations
+			smoothScroll.destroy();
+
+			// Selectors and variables
+			settings = extend(defaults, options || {}); // Merge user options with defaults
+			fixedHeader = settings.header ? document.querySelector(settings.header) : null; // Get the fixed header
+			headerHeight = getHeaderHeight(fixedHeader);
+
+			// When a toggle is clicked, run the click handler
+			document.addEventListener('click', clickHandler, false);
+
+			// If window is resized and there's a fixed header, recalculate its size
+			if (fixedHeader) {
+				window.addEventListener('resize', resizeThrottler, false);
+			}
+
+			// If updateURL and popState are enabled, listen for pop events
+			if (settings.updateURL && settings.popstate) {
+				window.addEventListener('popstate', popstateHandler, false);
+			}
+
+		};
+
+
+		//
+		// Initialize plugin
+		//
+
+		smoothScroll.init(options);
+
+
+		//
+		// Public APIs
+		//
+
+		return smoothScroll;
+
+	};
+
+	return SmoothScroll;
+
+}));
+
+/* GP */
+var gpscroll = new SmoothScroll( gpSmoothScroll.elements.join(), {
+	speed: gpSmoothScroll.duration,
+	offset: function( anchor, toggle ) {
+		var body = document.body,
+			nav = document.querySelector( '#site-navigation' ),
+			stickyNav = document.querySelector( '#sticky-navigation' ),
+			mobileHeader = document.querySelector( '#mobile-header' ),
+			menuToggle = document.querySelector( '.menu-toggle' ),
+			offset = 0;
+
+		if ( mobileHeader && ( mobileHeader.offsetWidth || mobileHeader.offsetHeight || mobileHeader.getClientRects().length ) ) {
+			if ( body.classList.contains( 'mobile-header-sticky' ) ) {
+				offset = offset + mobileHeader.clientHeight;
+			}
+		} else if ( menuToggle && ( menuToggle.offsetWidth || menuToggle.offsetHeight || menuToggle.getClientRects().length ) ) {
+			if ( body.classList.contains( 'both-sticky-menu' ) || body.classList.contains( 'mobile-sticky-menu' ) ) {
+				if ( stickyNav ) {
+					offset = offset + stickyNav.clientHeight;
+				} else if ( nav ) {
+					offset = offset + nav.clientHeight;
+				}
+			}
+		} else if ( body.classList.contains( 'both-sticky-menu' ) || body.classList.contains( 'desktop-sticky-menu' ) ) {
+			if ( stickyNav ) {
+				offset = offset + stickyNav.clientHeight;
+			} else if ( nav ) {
+				offset = offset + nav.clientHeight;
+			}
+		}
+
+		return gpSmoothScroll.offset
+			? gpSmoothScroll.offset
+			: offset;
+	}
+} );

wp-content/plugins/gp-premium/general/js/smooth-scroll.min.js

@@ -0,0 +1 @@
+window.Element&&!Element.prototype.closest&&(Element.prototype.closest=function(e){var t,n=(this.document||this.ownerDocument).querySelectorAll(e),o=this;do{for(t=n.length;0<=--t&&n.item(t)!==o;);}while(t<0&&(o=o.parentElement));return o}),function(){function e(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n}"function"!=typeof window.CustomEvent&&(e.prototype=window.Event.prototype,window.CustomEvent=e)}(),function(){for(var r=0,e=["ms","moz","webkit","o"],t=0;t<e.length&&!window.requestAnimationFrame;++t)window.requestAnimationFrame=window[e[t]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[t]+"CancelAnimationFrame"]||window[e[t]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e,t){var n=(new Date).getTime(),o=Math.max(0,16-(n-r)),i=window.setTimeout(function(){e(n+o)},o);return r=n+o,i}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})}(),function(e,t){"function"==typeof define&&define.amd?define([],function(){return t(e)}):"object"==typeof exports?module.exports=t(e):e.SmoothScroll=t(e)}("undefined"!=typeof global?global:"undefined"!=typeof window?window:this,function(b){"use strict";function E(){for(var e={},t=0;t<arguments.length;t++){n=void 0;var n,o=arguments[t];for(n in o)o.hasOwnProperty(n)&&(e[n]=o[n])}return e}function c(t){var n;try{n=decodeURIComponent(t)}catch(e){n=t}return n}function s(e){"#"===e.charAt(0)&&(e=e.substr(1));for(var t,n,o=String(e),i=o.length,r=-1,a="",c=o.charCodeAt(0);++r<i;){if(0===(t=o.charCodeAt(r)))throw new InvalidCharacterError("Invalid character: the input contains U+0000.");1<=t&&t<=31||127==t||0===r&&48<=t&&t<=57||1===r&&48<=t&&t<=57&&45===c?a+="\\"+t.toString(16)+" ":a+=128<=t||45===t||95===t||48<=t&&t<=57||65<=t&&t<=90||97<=t&&t<=122?o.charAt(r):"\\"+o.charAt(r)}try{n=decodeURIComponent("#"+a)}catch(e){n="#"+a}return n}function A(e){return e?t(e)+e.offsetTop:0}function C(e,t,n,o){t.emitEvents&&"function"==typeof b.CustomEvent&&(t=new CustomEvent(e,{bubbles:!0,detail:{anchor:n,toggle:o}}),document.dispatchEvent(t))}var q={ignore:"[data-scroll-ignore]",header:null,topOnEmptyHash:!0,speed:500,clip:!0,offset:0,easing:"easeInOutCubic",customEasing:null,updateURL:!0,popstate:!0,emitEvents:!0},t=function(e){return parseInt(b.getComputedStyle(e).height,10)},O=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)};return function(o,e){function t(e){var t,n;"matchMedia"in b&&b.matchMedia("(prefers-reduced-motion)").matches||0!==e.button||e.metaKey||e.ctrlKey||"closest"in e.target&&(r=e.target.closest(o))&&"a"===r.tagName.toLowerCase()&&!e.target.closest(g.ignore)&&r.hostname===b.location.hostname&&r.pathname===b.location.pathname&&/#/.test(r.href)&&(t=s(c(r.hash)),n=(n=g.topOnEmptyHash&&"#"===t?document.documentElement:document.querySelector(t))||"#top"!==t?n:document.documentElement)&&(e.preventDefault(),S.animateScroll(n,r))}function n(e){var t;null!==history.state&&history.state.smoothScroll&&history.state.smoothScroll===JSON.stringify(g)&&history.state.anchor&&(t=document.querySelector(s(c(history.state.anchor))))&&S.animateScroll(t,null,{updateURL:!1})}function i(e){a=a||setTimeout(function(){a=null,v=A(y)},66)}var g,r,y,v,a,w,S={cancelScroll:function(e){cancelAnimationFrame(w),w=null,e||C("scrollCancel",g)}};S.animateScroll=function(o,i,e){var r,a,c,s,u,l,m,d,f,t,h=E(g||q,e||{}),p="[object Number]"===Object.prototype.toString.call(o),e=p||!o.tagName?null:o;(p||e)&&(r=b.pageYOffset,h.header&&!y&&(y=document.querySelector(h.header)),v=v||A(y),a=p?o:function(e,t,n,o){var i=0;if(e.offsetParent)for(;i+=e.offsetTop,e=e.offsetParent;);return i=Math.max(i-t-n,0),i=o?Math.min(i,O()-b.innerHeight):i}(e,v,parseInt("function"==typeof h.offset?h.offset(o,i):h.offset,10),h.clip),c=a-r,s=O(),d=function(e,t){var n=b.pageYOffset;if(e==t||n==t||(r<t&&b.innerHeight+n)>=s)return S.cancelScroll(!0),e=t,n=p,0===(t=o)&&document.body.focus(),n||(t.focus(),document.activeElement!==t&&(t.setAttribute("tabindex","-1"),t.focus(),t.style.outline="none"),b.scrollTo(0,e)),C("scrollStop",h,o,i),!(w=l=null)},f=function(e){var t,n,o;m=(u+=e-(l=l||e))/parseInt(h.speed,10),m=r+c*(n=1<m?1:m,"easeInQuad"===(t=h).easing&&(o=n*n),"easeOutQuad"===t.easing&&(o=n*(2-n)),"easeInOutQuad"===t.easing&&(o=n<.5?2*n*n:(4-2*n)*n-1),"easeInCubic"===t.easing&&(o=n*n*n),"easeOutCubic"===t.easing&&(o=--n*n*n+1),"easeInOutCubic"===t.easing&&(o=n<.5?4*n*n*n:(n-1)*(2*n-2)*(2*n-2)+1),"easeInQuart"===t.easing&&(o=n*n*n*n),"easeOutQuart"===t.easing&&(o=1- --n*n*n*n),"easeInOutQuart"===t.easing&&(o=n<.5?8*n*n*n*n:1-8*--n*n*n*n),"easeInQuint"===t.easing&&(o=n*n*n*n*n),"easeOutQuint"===t.easing&&(o=1+--n*n*n*n*n),"easeInOutQuint"===t.easing&&(o=n<.5?16*n*nLine truncated