/* Detect-zoom
 * -----------
 * Cross Browser Zoom and Pixel Ratio Detector
 * Version 1.0.4 | Apr 1 2013
 * dual-licensed under the WTFPL and MIT license
 * Maintained by https://github/tombigel
 * Original developer https://github.com/yonran
 */

//AMD and CommonJS initialization copied from https://github.com/zohararad/audio5js
(function (root, ns, factory) {
    "use strict";

    if (typeof (module) !== 'undefined' && module.exports) { // CommonJS
        module.exports = factory(ns, root);
    } else if (typeof (define) === 'function' && define.amd) { // AMD
        define("factory", function () {
            return factory(ns, root);
        });
    } else {
        root[ns] = factory(ns, root);
    }

}(window, 'detectZoom', function () {

    /**
     * Use devicePixelRatio if supported by the browser
     * @return {Number}
     * @private
     */
    var devicePixelRatio = function () {
        return window.devicePixelRatio || 1;
    };

    /**
     * Fallback function to set default values
     * @return {Object}
     * @private
     */
    var fallback = function () {
        return {
            zoom: 1,
            devicePxPerCssPx: 1
        };
    };
    /**
     * IE 8 and 9: no trick needed!
     * TODO: Test on IE10 and Windows 8 RT
     * @return {Object}
     * @private
     **/
    var ie8 = function () {
        var zoom = Math.round((screen.deviceXDPI / screen.logicalXDPI) * 100) / 100;
        return {
            zoom: zoom,
            devicePxPerCssPx: zoom * devicePixelRatio()
        };
    };

    /**
     * For IE10 we need to change our technique again...
     * thanks https://github.com/stefanvanburen
     * @return {Object}
     * @private
     */
    var ie10 = function () {
        var zoom = Math.round((document.documentElement.offsetHeight / window.innerHeight) * 100) / 100;
        return {
            zoom: zoom,
            devicePxPerCssPx: zoom * devicePixelRatio()
        };
    };

    /**
     * Mobile WebKit
     * the trick: window.innerWIdth is in CSS pixels, while
     * screen.width and screen.height are in system pixels.
     * And there are no scrollbars to mess up the measurement.
     * @return {Object}
     * @private
     */
    var webkitMobile = function () {
        var deviceWidth = (Math.abs(window.orientation) == 90) ? screen.height : screen.width;
        var zoom = deviceWidth / window.innerWidth;
        return {
            zoom: zoom,
            devicePxPerCssPx: zoom * devicePixelRatio()
        };
    };

    /**
     * Desktop Webkit
     * the trick: an element's clientHeight is in CSS pixels, while you can
     * set its line-height in system pixels using font-size and
     * -webkit-text-size-adjust:none.
     * device-pixel-ratio: http://www.webkit.org/blog/55/high-dpi-web-sites/
     *
     * Previous trick (used before http://trac.webkit.org/changeset/100847):
     * documentElement.scrollWidth is in CSS pixels, while
     * document.width was in system pixels. Note that this is the
     * layout width of the document, which is slightly different from viewport
     * because document width does not include scrollbars and might be wider
     * due to big elements.
     * @return {Object}
     * @private
     */
    var webkit = function () {
        var important = function (str) {
            return str.replace(/;/g, " !important;");
        };

        var div = document.createElement('div');
        div.innerHTML = "1<br>2<br>3<br>4<br>5<br>6<br>7<br>8<br>9<br>0";
        div.setAttribute('style', important('font: 100px/1em sans-serif; -webkit-text-size-adjust: none; text-size-adjust: none; height: auto; width: 1em; padding: 0; overflow: visible;'));

        // The container exists so that the div will be laid out in its own flow
        // while not impacting the layout, viewport size, or display of the
        // webpage as a whole.
        // Add !important and relevant CSS rule resets
        // so that other rules cannot affect the results.
        var container = document.createElement('div');
        container.setAttribute('style', important('width:0; height:0; overflow:hidden; visibility:hidden; position: absolute;'));
        container.appendChild(div);

        document.body.appendChild(container);
        var zoom = 1000 / div.clientHeight;
        zoom = Math.round(zoom * 100) / 100;
        document.body.removeChild(container);

        return{
            zoom: zoom,
            devicePxPerCssPx: zoom * devicePixelRatio()
        };
    };

    /**
     * no real trick; device-pixel-ratio is the ratio of device dpi / css dpi.
     * (Note that this is a different interpretation than Webkit's device
     * pixel ratio, which is the ratio device dpi / system dpi).
     *
     * Also, for Mozilla, there is no difference between the zoom factor and the device ratio.
     *
     * @return {Object}
     * @private
     */
    var firefox4 = function () {
        var zoom = mediaQueryBinarySearch('min--moz-device-pixel-ratio', '', 0, 10, 20, 0.0001);
        zoom = Math.round(zoom * 100) / 100;
        return {
            zoom: zoom,
            devicePxPerCssPx: zoom
        };
    };

    /**
     * Firefox 18.x
     * Mozilla added support for devicePixelRatio to Firefox 18,
     * but it is affected by the zoom level, so, like in older
     * Firefox we can't tell if we are in zoom mode or in a device
     * with a different pixel ratio
     * @return {Object}
     * @private
     */
    var firefox18 = function () {
        return {
            zoom: firefox4().zoom,
            devicePxPerCssPx: devicePixelRatio()
        };
    };

    /**
     * works starting Opera 11.11
     * the trick: outerWidth is the viewport width including scrollbars in
     * system px, while innerWidth is the viewport width including scrollbars
     * in CSS px
     * @return {Object}
     * @private
     */
    var opera11 = function () {
        var zoom = window.top.outerWidth / window.top.innerWidth;
        zoom = Math.round(zoom * 100) / 100;
        return {
            zoom: zoom,
            devicePxPerCssPx: zoom * devicePixelRatio()
        };
    };

    /**
     * Use a binary search through media queries to find zoom level in Firefox
     * @param property
     * @param unit
     * @param a
     * @param b
     * @param maxIter
     * @param epsilon
     * @return {Number}
     */
    var mediaQueryBinarySearch = function (property, unit, a, b, maxIter, epsilon) {
        var matchMedia;
        var head, style, div;
        if (window.matchMedia) {
            matchMedia = window.matchMedia;
        } else {
            head = document.getElementsByTagName('head')[0];
            style = document.createElement('style');
            head.appendChild(style);

            div = document.createElement('div');
            div.className = 'mediaQueryBinarySearch';
            div.style.display = 'none';
            document.body.appendChild(div);

            matchMedia = function (query) {
                style.sheet.insertRule('@media ' + query + '{.mediaQueryBinarySearch ' + '{text-decoration: underline} }', 0);
                var matched = getComputedStyle(div, null).textDecoration == 'underline';
                style.sheet.deleteRule(0);
                return {matches: matched};
            };
        }
        var ratio = binarySearch(a, b, maxIter);
        if (div) {
            head.removeChild(style);
            document.body.removeChild(div);
        }
        return ratio;

        function binarySearch(a, b, maxIter) {
            var mid = (a + b) / 2;
            if (maxIter <= 0 || b - a < epsilon) {
                return mid;
            }
            var query = "(" + property + ":" + mid + unit + ")";
            if (matchMedia(query).matches) {
                return binarySearch(mid, b, maxIter - 1);
            } else {
                return binarySearch(a, mid, maxIter - 1);
            }
        }
    };

    /**
     * Generate detection function
     * @private
     */
    var detectFunction = (function () {
        var func = fallback;
        //IE8+
        if (!isNaN(screen.logicalXDPI) && !isNaN(screen.systemXDPI)) {
            func = ie8;
        }
        // IE10+ / Touch
        else if (window.navigator.msMaxTouchPoints) {
            func = ie10;
        }
        //Mobile Webkit
        else if ('orientation' in window && typeof document.body.style.webkitMarquee === 'string') {
            func = webkitMobile;
        }
        //WebKit
        else if (typeof document.body.style.webkitMarquee === 'string') {
            func = webkit;
        }
        //Opera
        else if (navigator.userAgent.indexOf('Opera') >= 0) {
            func = opera11;
        }
        //Last one is Firefox
        //FF 18.x
        else if (window.devicePixelRatio) {
            func = firefox18;
        }
        //FF 4.0 - 17.x
        else if (firefox4().zoom > 0.001) {
            func = firefox4;
        }

        return func;
    }());


    return ({

        /**
         * Ratios.zoom shorthand
         * @return {Number} Zoom level
         */
        zoom: function () {
            return detectFunction().zoom;
        },

        /**
         * Ratios.devicePxPerCssPx shorthand
         * @return {Number} devicePxPerCssPx level
         */
        device: function () {
            return detectFunction().devicePxPerCssPx;
        }
    });
}));

var wpcom_img_zoomer = {
        clientHintSupport: {
                gravatar: false,
                files: false,
                photon: false,
                mshots: false,
                staticAssets: false,
                latex: false,
                imgpress: false,
        },
	useHints: false,
	zoomed: false,
	timer: null,
	interval: 1000, // zoom polling interval in millisecond

	// Should we apply width/height attributes to control the image size?
	imgNeedsSizeAtts: function( img ) {
		// Do not overwrite existing width/height attributes.
		if ( img.getAttribute('width') !== null || img.getAttribute('height') !== null )
			return false;
		// Do not apply the attributes if the image is already constrained by a parent element.
		if ( img.width < img.naturalWidth || img.height < img.naturalHeight )
			return false;
		return true;
	},

        hintsFor: function( service ) {
                if ( this.useHints === false ) {
                        return false;
                }
                if ( this.hints() === false ) {
                        return false;
                }
                if ( typeof this.clientHintSupport[service] === "undefined" ) {
                        return false;
                }
                if ( this.clientHintSupport[service] === true ) {
                        return true;
                }
                return false;
        },

	hints: function() {
		try {
			var chrome = window.navigator.userAgent.match(/\sChrome\/([0-9]+)\.[.0-9]+\s/)
			if (chrome !== null) {
				var version = parseInt(chrome[1], 10)
				if (isNaN(version) === false && version >= 46) {
					return true
				}
			}
		} catch (e) {
			return false
		}
		return false
	},

	init: function() {
		var t = this;
		try{
			t.zoomImages();
			t.timer = setInterval( function() { t.zoomImages(); }, t.interval );
		}
		catch(e){
		}
	},

	stop: function() {
		if ( this.timer )
			clearInterval( this.timer );
	},

	getScale: function() {
		var scale = detectZoom.device();
		// Round up to 1.5 or the next integer below the cap.
		if      ( scale <= 1.0 ) scale = 1.0;
		else if ( scale <= 1.5 ) scale = 1.5;
		else if ( scale <= 2.0 ) scale = 2.0;
		else if ( scale <= 3.0 ) scale = 3.0;
		else if ( scale <= 4.0 ) scale = 4.0;
		else                     scale = 5.0;
		return scale;
	},

	shouldZoom: function( scale ) {
		var t = this;
		// Do not operate on hidden frames.
		if ( "innerWidth" in window && !window.innerWidth )
			return false;
		// Don't do anything until scale > 1
		if ( scale == 1.0 && t.zoomed == false )
			return false;
		return true;
	},

	zoomImages: function() {
		var t = this;
		var scale = t.getScale();
		if ( ! t.shouldZoom( scale ) ){
			return;
		}
		t.zoomed = true;
		// Loop through all the <img> elements on the page.
		var imgs = document.getElementsByTagName("img");

		for ( var i = 0; i < imgs.length; i++ ) {
			// Wait for original images to load
			if ( "complete" in imgs[i] && ! imgs[i].complete )
				continue;

			// Skip images that have srcset attributes.
			if ( imgs[i].hasAttribute('srcset') ) {
				continue;
			}

			// Skip images that don't need processing.
			var imgScale = imgs[i].getAttribute("scale");
			if ( imgScale == scale || imgScale == "0" )
				continue;

			// Skip images that have already failed at this scale
			var scaleFail = imgs[i].getAttribute("scale-fail");
			if ( scaleFail && scaleFail <= scale )
				continue;

			// Skip images that have no dimensions yet.
			if ( ! ( imgs[i].width && imgs[i].height ) )
				continue;

			// Skip images from Lazy Load plugins
			if ( ! imgScale && imgs[i].getAttribute("data-lazy-src") && (imgs[i].getAttribute("data-lazy-src") !== imgs[i].getAttribute("src")))
				continue;

			if ( t.scaleImage( imgs[i], scale ) ) {
				// Mark the img as having been processed at this scale.
				imgs[i].setAttribute("scale", scale);
			}
			else {
				// Set the flag to skip this image.
				imgs[i].setAttribute("scale", "0");
			}
		}
	},

	scaleImage: function( img, scale ) {
		var t = this;
		var newSrc = img.src;

                var isFiles = false;
                var isLatex = false;
                var isPhoton = false;

		// Skip slideshow images
		if ( img.parentNode.className.match(/slideshow-slide/) )
			return false;

		// Skip CoBlocks Lightbox images
		if ( img.parentNode.className.match(/coblocks-lightbox__image/) )
			return false;

		// Scale gravatars that have ?s= or ?size=
		if ( img.src.match( /^https?:\/\/([^\/]*\.)?gravatar\.com\/.+[?&](s|size)=/ ) ) {
                        if ( this.hintsFor( "gravatar" ) === true ) {
                                return false;
                        }
			newSrc = img.src.replace( /([?&](s|size)=)(\d+)/, function( $0, $1, $2, $3 ) {
				// Stash the original size
				var originalAtt = "originals",
				originalSize = img.getAttribute(originalAtt);
				if ( originalSize === null ) {
					originalSize = $3;
					img.setAttribute(originalAtt, originalSize);
					if ( t.imgNeedsSizeAtts( img ) ) {
						// Fix width and height attributes to rendered dimensions.
						img.width = img.width;
						img.height = img.height;
					}
				}
				// Get the width/height of the image in CSS pixels
				var size = img.clientWidth;
				// Convert CSS pixels to device pixels
				var targetSize = Math.ceil(img.clientWidth * scale);
				// Don't go smaller than the original size
				targetSize = Math.max( targetSize, originalSize );
				// Don't go larger than the service supports
				targetSize = Math.min( targetSize, 512 );
				return $1 + targetSize;
			});
		}

		// Scale mshots that have width
		else if ( img.src.match(/^https?:\/\/([^\/]+\.)*(wordpress|wp)\.com\/mshots\/.+[?&]w=\d+/) ) {
                        if ( this.hintsFor( "mshots" ) === true ) {
                                return false;
                        }
			newSrc = img.src.replace( /([?&]w=)(\d+)/, function($0, $1, $2) {
				// Stash the original size
				var originalAtt = 'originalw', originalSize = img.getAttribute(originalAtt);
				if ( originalSize === null ) {
					originalSize = $2;
					img.setAttribute(originalAtt, originalSize);
					if ( t.imgNeedsSizeAtts( img ) ) {
						// Fix width and height attributes to rendered dimensions.
						img.width = img.width;
						img.height = img.height;
					}
				}
				// Get the width of the image in CSS pixels
				var size = img.clientWidth;
				// Convert CSS pixels to device pixels
				var targetSize = Math.ceil(size * scale);
				// Don't go smaller than the original size
				targetSize = Math.max( targetSize, originalSize );
				// Don't go bigger unless the current one is actually lacking
				if ( scale > img.getAttribute("scale") && targetSize <= img.naturalWidth )
					targetSize = $2;
				if ( $2 != targetSize )
					return $1 + targetSize;
				return $0;
			});

			// Update height attribute to match width
			newSrc = newSrc.replace( /([?&]h=)(\d+)/, function($0, $1, $2) {
				if ( newSrc == img.src ) {
					return $0;
				}
				// Stash the original size
				var originalAtt = 'originalh', originalSize = img.getAttribute(originalAtt);
				if ( originalSize === null ) {
					originalSize = $2;
					img.setAttribute(originalAtt, originalSize);
				}
				// Get the height of the image in CSS pixels
				var size = img.clientHeight;
				// Convert CSS pixels to device pixels
				var targetSize = Math.ceil(size * scale);
				// Don't go smaller than the original size
				targetSize = Math.max( targetSize, originalSize );
				// Don't go bigger unless the current one is actually lacking
				if ( scale > img.getAttribute("scale") && targetSize <= img.naturalHeight )
					targetSize = $2;
				if ( $2 != targetSize )
					return $1 + targetSize;
				return $0;
			});
		}

		// Scale simple imgpress queries (s0.wp.com) that only specify w/h/fit
		else if ( img.src.match(/^https?:\/\/([^\/.]+\.)*(wp|wordpress)\.com\/imgpress\?(.+)/) ) {
                        if ( this.hintsFor( "imgpress" ) === true ) {
                                return false; 
                        }
			var imgpressSafeFunctions = ["zoom", "url", "h", "w", "fit", "filter", "brightness", "contrast", "colorize", "smooth", "unsharpmask"];
			// Search the query string for unsupported functions.
			var qs = RegExp.$3.split('&');
			for ( var q in qs ) {
				q = qs[q].split('=')[0];
				if ( imgpressSafeFunctions.indexOf(q) == -1 ) {
					return false;
				}
			}
			// Fix width and height attributes to rendered dimensions.
			img.width = img.width;
			img.height = img.height;
			// Compute new src
			if ( scale == 1 )
				newSrc = img.src.replace(/\?(zoom=[^&]+&)?/, '?');
			else
				newSrc = img.src.replace(/\?(zoom=[^&]+&)?/, '?zoom=' + scale + '&');
		}

		// Scale files.wordpress.com, LaTeX, or Photon images (i#.wp.com)
		else if (
			( isFiles = img.src.match(/^https?:\/\/([^\/]+)\.files\.wordpress\.com\/.+[?&][wh]=/) ) ||
			( isLatex = img.src.match(/^https?:\/\/([^\/.]+\.)*(wp|wordpress)\.com\/latex\.php\?(latex|zoom)=(.+)/) ) ||
			( isPhoton = img.src.match(/^https?:\/\/i[\d]{1}\.wp\.com\/(.+)/) )
		) {
                        if ( false !== isFiles && this.hintsFor( "files" ) === true ) {
                                return false
                        }
                        if ( false !== isLatex && this.hintsFor( "latex" ) === true ) {
                                return false
                        }
                        if ( false !== isPhoton && this.hintsFor( "photon" ) === true ) {
                                return false
                        }
			// Fix width and height attributes to rendered dimensions.
			img.width = img.width;
			img.height = img.height;
			// Compute new src
			if ( scale == 1 ) {
				newSrc = img.src.replace(/\?(zoom=[^&]+&)?/, '?');
			} else {
				newSrc = img.src;

				var url_var = newSrc.match( /([?&]w=)(\d+)/ );
				if ( url_var !== null && url_var[2] ) {
					newSrc = newSrc.replace( url_var[0], url_var[1] + img.width );
				}

				url_var = newSrc.match( /([?&]h=)(\d+)/ );
				if ( url_var !== null && url_var[2] ) {
					newSrc = newSrc.replace( url_var[0], url_var[1] + img.height );
				}

				var zoom_arg = '&zoom=2';
				if ( !newSrc.match( /\?/ ) ) {
					zoom_arg = '?zoom=2';
				}
				img.setAttribute( 'srcset', newSrc + zoom_arg + ' ' + scale + 'x' );
			}
		}

		// Scale static assets that have a name matching *-1x.png or *@1x.png
		else if ( img.src.match(/^https?:\/\/[^\/]+\/.*[-@]([12])x\.(gif|jpeg|jpg|png)(\?|$)/) ) {
                        if ( this.hintsFor( "staticAssets" ) === true ) {
                                return false; 
                        }
			// Fix width and height attributes to rendered dimensions.
			img.width = img.width;
			img.height = img.height;
			var currentSize = RegExp.$1, newSize = currentSize;
			if ( scale <= 1 )
				newSize = 1;
			else
				newSize = 2;
			if ( currentSize != newSize )
				newSrc = img.src.replace(/([-@])[12]x\.(gif|jpeg|jpg|png)(\?|$)/, '$1'+newSize+'x.$2$3');
		}

		else {
			return false;
		}

		// Don't set img.src unless it has changed. This avoids unnecessary reloads.
		if ( newSrc != img.src ) {
			// Store the original img.src
			var prevSrc, origSrc = img.getAttribute("src-orig");
			if ( !origSrc ) {
				origSrc = img.src;
				img.setAttribute("src-orig", origSrc);
			}
			// In case of error, revert img.src
			prevSrc = img.src;
			img.onerror = function(){
				img.src = prevSrc;
				if ( img.getAttribute("scale-fail") < scale )
					img.setAttribute("scale-fail", scale);
				img.onerror = null;
			};
			// Finally load the new image
			img.src = newSrc;
		}

		return true;
	}
};

wpcom_img_zoomer.init();
;
/* global wpcom_reblog */

var jetpackLikesWidgetBatch = [];
var jetpackLikesMasterReady = false;

// Due to performance problems on pages with a large number of widget iframes that need to be loaded,
// we are limiting the processing at any instant to unloaded widgets that are currently in viewport,
// plus this constant that will allow processing of widgets above and bellow the current fold.
// This aim of it is to improve the UX and hide the transition from unloaded to loaded state from users.
var jetpackLikesLookAhead = 2000; // pixels

// Keeps track of loaded comment likes widget so we can unload them when they are scrolled out of view.
var jetpackCommentLikesLoadedWidgets = [];

var jetpackLikesDocReadyPromise = new Promise( resolve => {
	if ( document.readyState !== 'loading' ) {
		resolve();
	} else {
		window.addEventListener( 'DOMContentLoaded', () => resolve() );
	}
} );

function JetpackLikesPostMessage( message, target ) {
	if ( typeof message === 'string' ) {
		try {
			message = JSON.parse( message );
		} catch ( e ) {
			return;
		}
	}

	if ( target && typeof target.postMessage === 'function' ) {
		try {
			target.postMessage(
				JSON.stringify( {
					type: 'likesMessage',
					data: message,
				} ),
				'*'
			);
		} catch ( e ) {
			return;
		}
	}
}

function JetpackLikesBatchHandler() {
	const requests = [];
	document.querySelectorAll( 'div.jetpack-likes-widget-unloaded' ).forEach( widget => {
		if ( jetpackLikesWidgetBatch.indexOf( widget.id ) > -1 ) {
			return;
		}

		if ( ! jetpackIsScrolledIntoView( widget ) ) {
			return;
		}

		jetpackLikesWidgetBatch.push( widget.id );

		var regex = /like-(post|comment)-wrapper-(\d+)-(\d+)-(\w+)/,
			match = regex.exec( widget.id ),
			info;

		if ( ! match || match.length !== 5 ) {
			return;
		}

		info = {
			blog_id: match[ 2 ],
			width: widget.width,
		};

		if ( 'post' === match[ 1 ] ) {
			info.post_id = match[ 3 ];
		} else if ( 'comment' === match[ 1 ] ) {
			info.comment_id = match[ 3 ];
		}

		info.obj_id = match[ 4 ];

		requests.push( info );
	} );

	if ( requests.length > 0 ) {
		JetpackLikesPostMessage(
			{ event: 'initialBatch', requests: requests },
			window.frames[ 'likes-master' ]
		);
	}
}

function JetpackLikesMessageListener( event ) {
	let message = event && event.data;
	if ( typeof message === 'string' ) {
		try {
			message = JSON.parse( message );
		} catch ( err ) {
			return;
		}
	}

	const type = message && message.type;
	const data = message && message.data;

	if ( type !== 'likesMessage' || typeof data.event === 'undefined' ) {
		return;
	}

	// We only allow messages from one origin
	const allowedOrigin = 'https://widgets.wp.com';
	if ( allowedOrigin !== event.origin ) {
		return;
	}

	switch ( data.event ) {
		case 'masterReady':
			jetpackLikesDocReadyPromise.then( () => {
				jetpackLikesMasterReady = true;

				const stylesData = {
					event: 'injectStyles',
				};
				const sdTextColor = document.querySelector( '.sd-text-color' );
				const sdLinkColor = document.querySelector( '.sd-link-color' );
				const sdTextColorStyles = ( sdTextColor && getComputedStyle( sdTextColor ) ) || {};
				const sdLinkColorStyles = ( sdLinkColor && getComputedStyle( sdLinkColor ) ) || {};

				if ( document.querySelectorAll( 'iframe.admin-bar-likes-widget' ).length > 0 ) {
					JetpackLikesPostMessage( { event: 'adminBarEnabled' }, window.frames[ 'likes-master' ] );

					const bgSource = document.querySelector(
						'#wpadminbar .quicklinks li#wp-admin-bar-wpl-like > a'
					);

					const wpAdminBar = document.querySelector( '#wpadminbar' );

					stylesData.adminBarStyles = {
						background: bgSource && getComputedStyle( bgSource ).background,
						isRtl: wpAdminBar && getComputedStyle( wpAdminBar ).direction === 'rtl',
					};
				}

				// enable reblogs if we're on a single post page
				if ( document.body.classList.contains( 'single' ) ) {
					JetpackLikesPostMessage( { event: 'reblogsEnabled' }, window.frames[ 'likes-master' ] );
				}

				stylesData.textStyles = {
					color: sdTextColorStyles[ 'color' ],
					fontFamily: sdTextColorStyles[ 'font-family' ],
					fontSize: sdTextColorStyles[ 'font-size' ],
					direction: sdTextColorStyles[ 'direction' ],
					fontWeight: sdTextColorStyles[ 'font-weight' ],
					fontStyle: sdTextColorStyles[ 'font-style' ],
					textDecoration: sdTextColorStyles[ 'text-decoration' ],
				};

				stylesData.linkStyles = {
					color: sdLinkColorStyles[ 'color' ],
					fontFamily: sdLinkColorStyles[ 'font-family' ],
					fontSize: sdLinkColorStyles[ 'font-size' ],
					textDecoration: sdLinkColorStyles[ 'text-decoration' ],
					fontWeight: sdLinkColorStyles[ 'font-weight' ],
					fontStyle: sdLinkColorStyles[ 'font-style' ],
				};

				JetpackLikesPostMessage( stylesData, window.frames[ 'likes-master' ] );

				JetpackLikesBatchHandler();
			} );

			break;

		case 'showLikeWidget': {
			const placeholder = document.querySelector( `#${ data.id } .likes-widget-placeholder` );
			if ( placeholder ) {
				placeholder.style.display = 'none';
			}
			break;
		}

		case 'showCommentLikeWidget': {
			const placeholder = document.querySelector( `#${ data.id } .likes-widget-placeholder` );
			if ( placeholder ) {
				placeholder.style.display = 'none';
			}
			break;
		}

		case 'killCommentLikes':
			// If kill switch for comment likes is enabled remove all widgets wrappers and `Loading...` placeholders.
			document
				.querySelectorAll( '.jetpack-comment-likes-widget-wrapper' )
				.forEach( wrapper => wrapper.remove() );
			break;

		case 'clickReblogFlair':
			if ( wpcom_reblog && typeof wpcom_reblog.toggle_reblog_box_flair === 'function' ) {
				wpcom_reblog.toggle_reblog_box_flair( data.obj_id );
			}
			break;

		case 'showOtherGravatars': {
			const container = document.querySelector( '#likes-other-gravatars' );
			if ( ! container ) {
				break;
			}

			const list = container.querySelector( 'ul' );

			container.style.display = 'none';
			list.innerHTML = '';

			container
				.querySelectorAll( '.likes-text span' )
				.forEach( item => ( item.textContent = data.total ) );

			( data.likers || [] ).forEach( liker => {
				if ( liker.profile_URL.substr( 0, 4 ) !== 'http' ) {
					// We only display gravatars with http or https schema
					return;
				}

				const element = document.createElement( 'li' );
				element.innerHTML = `
					<a href="${ encodeURI( liker.profile_URL ) }" rel="nofollow" target="_parent" class="wpl-liker">
						<img src="${ encodeURI( liker.avatar_URL ) }"
							alt=""
							style="width: 30px; height: 30px; padding-right: 3px;" />
					</a>
				`;

				list.append( element );

				// Add some extra attributes through native methods, to ensure strings are sanitized.
				element.classList.add( liker.css_class );
				element.querySelector( 'img' ).alt = liker.name;
			} );

			const el = document.querySelector( `*[name='${ data.parent }']` );
			const rect = el.getBoundingClientRect();
			const win = el.ownerDocument.defaultView;
			const offset = {
				top: rect.top + win.pageYOffset,
				left: rect.left + win.pageXOffset,
			};

			container.style.left = offset.left + data.position.left - 10 + 'px';
			container.style.top = offset.top + data.position.top - 33 + 'px';

			const rowLength = Math.floor( data.width / 37 );
			let height = Math.ceil( data.likers.length / rowLength ) * 37 + 13;
			if ( height > 204 ) {
				height = 204;
			}

			const containerWidth = rowLength * 37 - 7;
			container.style.height = height + 'px';
			container.style.width = containerWidth + 'px';

			const listWidth = rowLength * 37;
			list.style.width = listWidth + 'px';

			container.style.display = 'block';

			const scrollbarWidth = list.offsetWidth - list.clientWidth;
			if ( scrollbarWidth > 0 ) {
				container.style.width = containerWidth + scrollbarWidth + 'px';
				list.style.width = listWidth + scrollbarWidth + 'px';
			}
		}
	}
}

window.addEventListener( 'message', JetpackLikesMessageListener );

document.addEventListener( 'click', e => {
	const container = document.querySelector( '#likes-other-gravatars' );

	if ( container && ! container.contains( e.target ) ) {
		container.style.display = 'none';
	}
} );

function JetpackLikesWidgetQueueHandler() {
	var wrapperID;

	if ( ! jetpackLikesMasterReady ) {
		setTimeout( JetpackLikesWidgetQueueHandler, 500 );
		return;
	}

	// Restore widgets to initial unloaded state when they are scrolled out of view.
	jetpackUnloadScrolledOutWidgets();

	var unloadedWidgetsInView = jetpackGetUnloadedWidgetsInView();

	if ( unloadedWidgetsInView.length > 0 ) {
		// Grab any unloaded widgets for a batch request
		JetpackLikesBatchHandler();
	}

	for ( var i = 0, length = unloadedWidgetsInView.length; i <= length - 1; i++ ) {
		wrapperID = unloadedWidgetsInView[ i ].id;

		if ( ! wrapperID ) {
			continue;
		}

		jetpackLoadLikeWidgetIframe( wrapperID );
	}
}

function jetpackLoadLikeWidgetIframe( wrapperID ) {
	if ( typeof wrapperID === 'undefined' ) {
		return;
	}

	const wrapper = document.querySelector( '#' + wrapperID );
	wrapper.querySelectorAll( 'iframe' ).forEach( iFrame => iFrame.remove() );

	const placeholder = wrapper.querySelector( '.likes-widget-placeholder' );

	// Post like iframe
	if ( placeholder && placeholder.classList.contains( 'post-likes-widget-placeholder' ) ) {
		const postLikesFrame = document.createElement( 'iframe' );

		postLikesFrame.classList.add( 'post-likes-widget', 'jetpack-likes-widget' );
		postLikesFrame.name = wrapper.dataset.name;
		postLikesFrame.src = wrapper.dataset.src;
		postLikesFrame.height = '55px';
		postLikesFrame.width = '100%';
		postLikesFrame.frameBorder = '0';
		postLikesFrame.scrolling = 'no';
		postLikesFrame.title = wrapper.dataset.title;

		placeholder.after( postLikesFrame );
	}

	// Comment like iframe
	if ( placeholder.classList.contains( 'comment-likes-widget-placeholder' ) ) {
		const commentLikesFrame = document.createElement( 'iframe' );

		commentLikesFrame.class = 'comment-likes-widget-frame jetpack-likes-widget-frame';
		commentLikesFrame.name = wrapper.dataset.name;
		commentLikesFrame.src = wrapper.dataset.src;
		commentLikesFrame.height = '18px';
		commentLikesFrame.width = '100%';
		commentLikesFrame.frameBorder = '0';
		commentLikesFrame.scrolling = 'no';

		wrapper.querySelector( '.comment-like-feedback' ).after( commentLikesFrame );

		jetpackCommentLikesLoadedWidgets.push( commentLikesFrame );
	}

	wrapper.classList.remove( 'jetpack-likes-widget-unloaded' );
	wrapper.classList.add( 'jetpack-likes-widget-loading' );

	wrapper.querySelector( 'iframe' ).addEventListener( 'load', e => {
		JetpackLikesPostMessage(
			{ event: 'loadLikeWidget', name: e.target.name, width: e.target.width },
			window.frames[ 'likes-master' ]
		);

		wrapper.classList.remove( 'jetpack-likes-widget-loading' );
		wrapper.classList.add( 'jetpack-likes-widget-loaded' );
	} );
}

function jetpackGetUnloadedWidgetsInView() {
	const unloadedWidgets = document.querySelectorAll( 'div.jetpack-likes-widget-unloaded' );

	return [ ...unloadedWidgets ].filter( item => jetpackIsScrolledIntoView( item ) );
}

function jetpackIsScrolledIntoView( element ) {
	const top = element.getBoundingClientRect().top;
	const bottom = element.getBoundingClientRect().bottom;

	// Allow some slack above and bellow the fold with jetpackLikesLookAhead,
	// with the aim of hiding the transition from unloaded to loaded widget from users.
	return top + jetpackLikesLookAhead >= 0 && bottom <= window.innerHeight + jetpackLikesLookAhead;
}

function jetpackUnloadScrolledOutWidgets() {
	for ( let i = jetpackCommentLikesLoadedWidgets.length - 1; i >= 0; i-- ) {
		const currentWidgetIframe = jetpackCommentLikesLoadedWidgets[ i ];

		if ( ! jetpackIsScrolledIntoView( currentWidgetIframe ) ) {
			const widgetWrapper =
				currentWidgetIframe &&
				currentWidgetIframe.parentElement &&
				currentWidgetIframe.parentElement.parentElement;

			// Restore parent class to 'unloaded' so this widget can be picked up by queue manager again if needed.
			widgetWrapper.classList.remove( 'jetpack-likes-widget-loaded' );
			widgetWrapper.classList.remove( 'jetpack-likes-widget-loading' );
			widgetWrapper.classList.add( 'jetpack-likes-widget-unloaded' );

			// Bring back the loading placeholder into view.
			widgetWrapper
				.querySelectorAll( '.comment-likes-widget-placeholder' )
				.forEach( item => ( item.style.display = 'block' ) );

			// Remove it from the list of loaded widgets.
			jetpackCommentLikesLoadedWidgets.splice( i, 1 );

			// Remove comment like widget iFrame.
			currentWidgetIframe.remove();
		}
	}
}

var jetpackWidgetsDelayedExec = function ( after, fn ) {
	var timer;
	return function () {
		clearTimeout( timer );
		timer = setTimeout( fn, after );
	};
};

var jetpackOnScrollStopped = jetpackWidgetsDelayedExec( 250, JetpackLikesWidgetQueueHandler );

// Load initial batch of widgets, prior to any scrolling events.
JetpackLikesWidgetQueueHandler();

// Add event listener to execute queue handler after scroll.
window.addEventListener( 'scroll', jetpackOnScrollStopped, true );
;
/* globals infiniteScroll, _wpmejsSettings, ga, _gaq, WPCOM_sharing_counts, MediaElementPlayer */
( function () {
	// Open closure.
	// Local vars.
	var Scroller, ajaxurl, stats, type, text, totop, loading_text;

	// IE requires special handling
	var isIE = -1 != navigator.userAgent.search( 'MSIE' );
	if ( isIE ) {
		var IEVersion = navigator.userAgent.match( /MSIE\s?(\d+)\.?\d*;/ );
		IEVersion = parseInt( IEVersion[ 1 ] );
	}

	// HTTP ajaxurl when site is HTTPS causes Access-Control-Allow-Origin failure in Desktop and iOS Safari
	if ( 'https:' == document.location.protocol ) {
		infiniteScroll.settings.ajaxurl = infiniteScroll.settings.ajaxurl.replace(
			'http://',
			'https://'
		);
	}

	/**
	 * Loads new posts when users scroll near the bottom of the page.
	 */
	Scroller = function ( settings ) {
		var self = this;

		// Initialize our variables
		this.id = settings.id;
		this.body = document.body;
		this.window = window;
		this.element = document.getElementById( settings.id );
		this.wrapperClass = settings.wrapper_class;
		this.ready = true;
		this.disabled = false;
		this.page = 1;
		this.offset = settings.offset;
		this.currentday = settings.currentday;
		this.order = settings.order;
		this.throttle = false;
		this.click_handle = settings.click_handle;
		this.google_analytics = settings.google_analytics;
		this.history = settings.history;
		this.origURL = window.location.href;

		// Handle element
		this.handle = document.createElement( 'div' );
		this.handle.setAttribute( 'id', 'infinite-handle' );
		this.handle.innerHTML = '<span><button>' + text.replace( '\\', '' ) + '</button></span>';

		// Footer settings
		this.footer = {
			el: document.getElementById( 'infinite-footer' ),
			wrap: settings.footer,
		};

		// Bind methods used as callbacks
		this.checkViewportOnLoadBound = self.checkViewportOnLoad.bind( this );

		// Core's native MediaElement.js implementation needs special handling
		this.wpMediaelement = null;

		// We have two type of infinite scroll
		// cases 'scroll' and 'click'

		if ( type == 'scroll' ) {
			// Bind refresh to the scroll event
			// Throttle to check for such case every 300ms

			// On event the case becomes a fact
			this.window.addEventListener( 'scroll', function () {
				self.throttle = true;
			} );

			// Go back top method
			self.gotop();

			setInterval( function () {
				if ( self.throttle ) {
					// Once the case is the case, the action occurs and the fact is no more
					self.throttle = false;
					// Reveal or hide footer
					self.thefooter();
					// Fire the refresh
					self.refresh();
					self.determineURL(); // determine the url
				}
			}, 250 );

			// Ensure that enough posts are loaded to fill the initial viewport, to compensate for short posts and large displays.
			self.ensureFilledViewport();
			this.body.addEventListener( 'is.post-load', self.checkViewportOnLoadBound );
		} else if ( type == 'click' ) {
			if ( this.click_handle ) {
				this.element.appendChild( this.handle );
			}

			this.handle.addEventListener( 'click', function () {
				// Handle the handle
				if ( self.click_handle ) {
					self.handle.parentNode.removeChild( self.handle );
				}

				// Fire the refresh
				self.refresh();
			} );
		}

		// Initialize any Core audio or video players loaded via IS
		this.body.addEventListener( 'is.post-load', self.initializeMejs );
	};

	/**
	 * Normalize the access to the document scrollTop value.
	 */
	Scroller.prototype.getScrollTop = function () {
		return window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
	};

	/**
	 * Polyfill jQuery.extend.
	 */
	Scroller.prototype.extend = function ( out ) {
		out = out || {};

		for ( var i = 1; i < arguments.length; i++ ) {
			if ( ! arguments[ i ] ) {
				continue;
			}

			for ( var key in arguments[ i ] ) {
				if ( arguments[ i ].hasOwnProperty( key ) ) {
					out[ key ] = arguments[ i ][ key ];
				}
			}
		}
		return out;
	};

	/**
	 * Check whether we should fetch any additional posts.
	 */
	Scroller.prototype.check = function () {
		var wrapperMeasurements = this.measure( this.element, [ this.wrapperClass ] );

		// Fetch more posts when we're less than 2 screens away from the bottom.
		return wrapperMeasurements.bottom < 2 * this.window.innerHeight;
	};

	/**
	 * Renders the results from a successful response.
	 */
	Scroller.prototype.render = function ( response ) {
		var childrenToAppend = Array.prototype.slice.call( response.fragment.childNodes );
		this.body.classList.add( 'infinity-success' );

		// Render the retrieved nodes.
		while ( childrenToAppend.length > 0 ) {
			var currentNode = childrenToAppend.shift();
			this.element.appendChild( currentNode );
		}

		this.trigger( this.body, 'is.post-load', {
			jqueryEventName: 'post-load',
			data: response,
		} );

		this.ready = true;
	};

	/**
	 * Returns the object used to query for new posts.
	 */
	Scroller.prototype.query = function () {
		return {
			page: this.page + this.offset, // Load the next page.
			currentday: this.currentday,
			order: this.order,
			scripts: window.infiniteScroll.settings.scripts,
			styles: window.infiniteScroll.settings.styles,
			query_args: window.infiniteScroll.settings.query_args,
			query_before: window.infiniteScroll.settings.query_before,
			last_post_date: window.infiniteScroll.settings.last_post_date,
		};
	};

	Scroller.prototype.animate = function ( cb, duration ) {
		var start = performance.now();

		requestAnimationFrame( function animate( time ) {
			var timeFraction = Math.min( 1, ( time - start ) / duration );
			cb( timeFraction );

			if ( timeFraction < 1 ) {
				requestAnimationFrame( animate );
			}
		} );
	};

	/**
	 * Scroll back to top.
	 */
	Scroller.prototype.gotop = function () {
		var blog = document.getElementById( 'infinity-blog-title' );
		var self = this;

		if ( ! blog ) {
			return;
		}

		blog.setAttribute( 'title', totop );
		blog.addEventListener( 'click', function ( e ) {
			var sourceScroll = self.window.pageYOffset;
			e.preventDefault();

			self.animate( function ( progress ) {
				var currentScroll = sourceScroll - sourceScroll * progress;
				document.documentElement.scrollTop = document.body.scrollTop = currentScroll;
			}, 200 );
		} );
	};

	/**
	 * The infinite footer.
	 */
	Scroller.prototype.thefooter = function () {
		var self = this,
			pageWrapper,
			footerContainer,
			width,
			sourceBottom,
			targetBottom,
			footerEnabled = this.footer && this.footer.el;

		if ( ! footerEnabled ) {
			return;
		}

		// Check if we have an id for the page wrapper
		if ( 'string' === typeof this.footer.wrap ) {
			try {
				pageWrapper = document.getElementById( this.footer.wrap );
				width = pageWrapper.getBoundingClientRect();
				width = width.width;
			} catch ( err ) {
				width = 0;
			}

			// Make the footer match the width of the page
			if ( width > 479 ) {
				footerContainer = this.footer.el.querySelector( '.container' );
				if ( footerContainer ) {
					footerContainer.style.width = width + 'px';
				}
			}
		}

		// Reveal footer
		sourceBottom = parseInt( self.footer.el.style.bottom || -50, 10 );
		targetBottom = this.window.pageYOffset >= 350 ? 0 : -50;

		if ( sourceBottom !== targetBottom ) {
			self.animate( function ( progress ) {
				var currentBottom = sourceBottom + ( targetBottom - sourceBottom ) * progress;
				self.footer.el.style.bottom = currentBottom + 'px';

				if ( 1 === progress ) {
					sourceBottom = targetBottom;
				}
			}, 200 );
		}
	};

	/**
	 * Recursively convert a JS object into URL encoded data.
	 */
	Scroller.prototype.urlEncodeJSON = function ( obj, prefix ) {
		var params = [],
			encodedKey,
			newPrefix;

		for ( var key in obj ) {
			encodedKey = encodeURIComponent( key );
			newPrefix = prefix ? prefix + '[' + encodedKey + ']' : encodedKey;

			if ( 'object' === typeof obj[ key ] ) {
				if ( ! Array.isArray( obj[ key ] ) || obj[ key ].length > 0 ) {
					params.push( this.urlEncodeJSON( obj[ key ], newPrefix ) );
				} else {
					// Explicitly expose empty arrays with no values
					params.push( newPrefix + '[]=' );
				}
			} else {
				params.push( newPrefix + '=' + encodeURIComponent( obj[ key ] ) );
			}
		}
		return params.join( '&' );
	};

	/**
	 * Controls the flow of the refresh. Don't mess.
	 */
	Scroller.prototype.refresh = function () {
		var self = this,
			query,
			xhr,
			loader,
			customized;

		// If we're disabled, ready, or don't pass the check, bail.
		if ( this.disabled || ! this.ready || ! this.check() ) {
			return;
		}

		// Let's get going -- set ready to false to prevent
		// multiple refreshes from occurring at once.
		this.ready = false;

		// Create a loader element to show it's working.
		if ( this.click_handle ) {
			if ( ! loader ) {
				document.getElementById( 'infinite-aria' ).textContent = loading_text;
				loader = document.createElement( 'div' );
				loader.classList.add( 'infinite-loader' );
				loader.setAttribute( 'role', 'progress' );
				loader.innerHTML =
					'<div class="spinner"><div class="spinner-inner"><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div></div></div>';
			}
			this.element.appendChild( loader );
		}

		// Generate our query vars.
		query = self.extend(
			{
				action: 'infinite_scroll',
			},
			this.query()
		);

		// Inject Customizer state.
		if ( 'undefined' !== typeof wp && wp.customize && wp.customize.settings.theme ) {
			customized = {};
			query.wp_customize = 'on';
			query.theme = wp.customize.settings.theme.stylesheet;
			wp.customize.each( function ( setting ) {
				if ( setting._dirty ) {
					customized[ setting.id ] = setting();
				}
			} );
			query.customized = JSON.stringify( customized );
			query.nonce = wp.customize.settings.nonce.preview;
		}

		// Fire the ajax request.
		xhr = new XMLHttpRequest();
		xhr.open( 'POST', infiniteScroll.settings.ajaxurl, true );
		xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' );
		xhr.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8' );
		xhr.send( self.urlEncodeJSON( query ) );

		// Allow refreshes to occur again if an error is triggered.
		xhr.onerror = function () {
			if ( self.click_handle && loader.parentNode ) {
				loader.parentNode.removeChild( loader );
			}

			self.ready = true;
		};

		// Success handler
		xhr.onload = function () {
			var response = JSON.parse( xhr.responseText ),
				httpCheck = xhr.status >= 200 && xhr.status < 300,
				responseCheck = 'undefined' !== typeof response.html;

			if ( ! response || ! httpCheck || ! responseCheck ) {
				if ( self.click_handle && loader.parentNode ) {
					loader.parentNode.removeChild( loader );
				}
				return;
			}

			// On success, let's hide the loader circle.
			if ( self.click_handle && loader.parentNode ) {
				loader.parentNode.removeChild( loader );
			}

			// If additional scripts are required by the incoming set of posts, parse them
			if ( response.scripts && Array.isArray( response.scripts ) ) {
				response.scripts.forEach( function ( item ) {
					var elementToAppendTo = item.footer ? 'body' : 'head';

					// Add script handle to list of those already parsed
					window.infiniteScroll.settings.scripts.push( item.handle );

					// Output extra data, if present
					if ( item.extra_data ) {
						self.appendInlineScript( item.extra_data, elementToAppendTo );
					}

					if ( item.before_handle ) {
						self.appendInlineScript( item.before_handle, elementToAppendTo );
					}

					// Build script tag and append to DOM in requested location
					var script = document.createElement( 'script' );
					script.type = 'text/javascript';
					script.src = item.src;
					script.id = item.handle;

					// Dynamically loaded scripts are async by default.
					// We don't want that, it breaks stuff, e.g. wp-mediaelement init.
					script.async = false;

					if ( item.after_handle ) {
						script.onload = function () {
							self.appendInlineScript( item.after_handle, elementToAppendTo );
						};
					}

					// If MediaElement.js is loaded in by item set of posts, don't initialize the players a second time as it breaks them all
					if ( 'wp-mediaelement' === item.handle ) {
						self.body.removeEventListener( 'is.post-load', self.initializeMejs );
					}

					if ( 'wp-mediaelement' === item.handle && 'undefined' === typeof mejs ) {
						self.wpMediaelement = {};
						self.wpMediaelement.tag = script;
						self.wpMediaelement.element = elementToAppendTo;
						setTimeout( self.maybeLoadMejs.bind( self ), 250 );
					} else {
						document.getElementsByTagName( elementToAppendTo )[ 0 ].appendChild( script );
					}
				} );
			}

			// If additional stylesheets are required by the incoming set of posts, parse them
			if ( response.styles && Array.isArray( response.styles ) ) {
				response.styles.forEach( function ( item ) {
					// Add stylesheet handle to list of those already parsed
					window.infiniteScroll.settings.styles.push( item.handle );

					// Build link tag
					var style = document.createElement( 'link' );
					style.rel = 'stylesheet';
					style.href = item.src;
					style.id = item.handle + '-css';

					// Destroy link tag if a conditional statement is present and either the browser isn't IE, or the conditional doesn't evaluate true
					if (
						item.conditional &&
						( ! isIE || ! eval( item.conditional.replace( /%ver/g, IEVersion ) ) )
					) {
						style = false;
					}

					// Append link tag if necessary
					if ( style ) {
						document.getElementsByTagName( 'head' )[ 0 ].appendChild( style );
					}
				} );
			}

			// Convert the response.html to a fragment element.
			// Using a div instead of DocumentFragment, because the latter doesn't support innerHTML.
			response.fragment = document.createElement( 'div' );
			response.fragment.innerHTML = response.html;

			// Increment the page number
			self.page++;

			// Record pageview in WP Stats, if available.
			if ( stats ) {
				new Image().src =
					document.location.protocol +
					'https://pixel.wp.com/g.gif?' +
					stats +
					'&post=0&baba=' +
					Math.random();
			}

			// Add new posts to the postflair object
			if ( 'object' === typeof response.postflair && 'object' === typeof WPCOM_sharing_counts ) {
				WPCOM_sharing_counts = self.extend( WPCOM_sharing_counts, response.postflair ); // eslint-disable-line no-global-assign
			}

			// Render the results
			self.render.call( self, response );

			// If 'click' type and there are still posts to fetch, add back the handle
			if ( type == 'click' ) {
				// add focus to new posts, only in button mode as we know where page focus currently is and only if we have a wrapper
				if ( infiniteScroll.settings.wrapper ) {
					document
						.querySelector( '#infinite-view-' + ( self.page + self.offset - 1 ) + ' a:first-of-type' )
						.focus( {
							preventScroll: true,
						} );
				}

				if ( response.lastbatch ) {
					if ( self.click_handle ) {
						// Update body classes
						self.body.classList.add( 'infinity-end' );
						self.body.classList.remove( 'infinity-success' );
					} else {
						self.trigger( this.body, 'infinite-scroll-posts-end' );
					}
				} else {
					if ( self.click_handle ) {
						self.element.appendChild( self.handle );
					} else {
						self.trigger( this.body, 'infinite-scroll-posts-more' );
					}
				}
			} else if ( response.lastbatch ) {
				self.disabled = true;

				self.body.classList.add( 'infinity-end' );
				self.body.classList.remove( 'infinity-success' );
			}

			// Update currentday to the latest value returned from the server
			if ( response.currentday ) {
				self.currentday = response.currentday;
			}

			// Fire Google Analytics pageview
			if ( self.google_analytics ) {
				var ga_url = self.history.path.replace( /%d/, self.page );
				if ( 'object' === typeof _gaq ) {
					_gaq.push( [ '_trackPageview', ga_url ] );
				}
				if ( 'function' === typeof ga ) {
					ga( 'send', 'pageview', ga_url );
				}
			}
		};

		return xhr;
	};

	/**
	 * Given JavaScript blob and the name of a parent tag, this helper function will
	 * generate a script tag, insert the JavaScript blob, and append it to the parent.
	 *
	 * It's important to note that the JavaScript blob will be evaluated immediately. If
	 * you need a parent script to load first, use that script element's onload handler.
	 *
	 * @param {string} script    The blob of JavaScript to run.
	 * @param {string} parentTag The tag name of the parent element.
	 */
	Scroller.prototype.appendInlineScript = function ( script, parentTag ) {
		var element = document.createElement( 'script' ),
			scriptContent = document.createTextNode( '//<![CDATA[ \n' + script + '\n//]]>' );

		element.type = 'text/javascript';
		element.appendChild( scriptContent );

		document.getElementsByTagName( parentTag )[ 0 ].appendChild( element );
	};

	/**
	 * Core's native media player uses MediaElement.js
	 * The library's size is sufficient that it may not be loaded in time for Core's helper to invoke it, so we need to delay until `mejs` exists.
	 */
	Scroller.prototype.maybeLoadMejs = function () {
		if ( null === this.wpMediaelement ) {
			return;
		}

		if ( 'undefined' === typeof mejs ) {
			setTimeout( this.maybeLoadMejs.bind( this ), 250 );
		} else {
			document
				.getElementsByTagName( this.wpMediaelement.element )[ 0 ]
				.appendChild( this.wpMediaelement.tag );
			this.wpMediaelement = null;

			// Ensure any subsequent IS loads initialize the players
			this.body.addEventListener( 'is.post-load', this.initializeMejs );
		}
	};

	/**
	 * Initialize the MediaElement.js player for any posts not previously initialized
	 */
	Scroller.prototype.initializeMejs = function ( e ) {
		// Are there media players in the incoming set of posts?
		if (
			! e.detail ||
			! e.detail.html ||
			( -1 === e.detail.html.indexOf( 'wp-audio-shortcode' ) &&
				-1 === e.detail.html.indexOf( 'wp-video-shortcode' ) )
		) {
			return;
		}

		// Don't bother if mejs isn't loaded for some reason
		if ( 'undefined' === typeof mejs ) {
			return;
		}

		// Adapted from wp-includes/js/mediaelement/wp-mediaelement.js
		// Modified to not initialize already-initialized players, as Mejs doesn't handle that well
		var settings = {};
		var audioVideoElements;

		if ( typeof _wpmejsSettings !== 'undefined' ) {
			settings.pluginPath = _wpmejsSettings.pluginPath;
		}

		settings.success = function ( mejs ) {
			var autoplay = mejs.attributes.autoplay && 'false' !== mejs.attributes.autoplay;
			if ( 'flash' === mejs.pluginType && autoplay ) {
				mejs.addEventListener(
					'canplay',
					function () {
						mejs.play();
					},
					false
				);
			}
		};

		audioVideoElements = document.querySelectorAll( '.wp-audio-shortcode, .wp-video-shortcode' );
		audioVideoElements = Array.prototype.slice.call( audioVideoElements );

		// Only process already unprocessed shortcodes.
		audioVideoElements = audioVideoElements.filter( function ( el ) {
			while ( el.parentNode ) {
				if ( el.classList.contains( 'mejs-container' ) ) {
					return false;
				}
				el = el.parentNode;
			}
			return true;
		} );

		for ( var i = 0; i < audioVideoElements.length; i++ ) {
			new MediaElementPlayer( audioVideoElements[ i ], settings );
		}
	};

	/**
	 * Get element measurements relative to the viewport.
	 *
	 * @returns {object}
	 */
	Scroller.prototype.measure = function ( element, expandClasses ) {
		expandClasses = expandClasses || [];

		var childrenToTest = Array.prototype.slice.call( element.children );
		var currentChild,
			minTop = Number.MAX_VALUE,
			maxBottom = 0,
			currentChildRect,
			i;

		while ( childrenToTest.length > 0 ) {
			currentChild = childrenToTest.shift();

			for ( i = 0; i < expandClasses.length; i++ ) {
				// Expand (= measure) child elements of nodes with class names from expandClasses.
				if ( currentChild.classList.contains( expandClasses[ i ] ) ) {
					childrenToTest = childrenToTest.concat(
						Array.prototype.slice.call( currentChild.children )
					);
					break;
				}
			}
			currentChildRect = currentChild.getBoundingClientRect();

			minTop = Math.min( minTop, currentChildRect.top );
			maxBottom = Math.max( maxBottom, currentChildRect.bottom );
		}

		var viewportMiddle = Math.round( window.innerHeight / 2 );

		// isActive = does the middle of the viewport cross the element?
		var isActive = minTop <= viewportMiddle && maxBottom >= viewportMiddle;

		/**
		 * Factor = percentage of viewport above the middle line occupied by the element.
		 *
		 * Negative factors are assigned for elements below the middle line. That's on purpose
		 * to only allow "page 2" to change the URL once it's in the middle of the viewport.
		 */
		var factor = ( Math.min( maxBottom, viewportMiddle ) - Math.max( minTop, 0 ) ) / viewportMiddle;

		return {
			top: minTop,
			bottom: maxBottom,
			height: maxBottom - minTop,
			factor: factor,
			isActive: isActive,
		};
	};

	/**
	 * Trigger IS to load additional posts if the initial posts don't fill the window.
	 *
	 * On large displays, or when posts are very short, the viewport may not be filled with posts,
	 * so we overcome this by loading additional posts when IS initializes.
	 */
	Scroller.prototype.ensureFilledViewport = function () {
		var self = this,
			windowHeight = self.window.innerHeight,
			wrapperMeasurements = self.measure( self.element, [ self.wrapperClass ] );

		// Only load more posts once. This prevents infinite loops when there are no more posts.
		self.body.removeEventListener( 'is.post-load', self.checkViewportOnLoadBound );

		// Load more posts if space permits, otherwise stop checking for a full viewport.
		if ( wrapperMeasurements.bottom !== 0 && wrapperMeasurements.bottom < windowHeight ) {
			self.ready = true;
			self.refresh();
		}
	};

	/**
	 * Event handler for ensureFilledViewport(), tied to the post-load trigger.
	 * Necessary to ensure that the variable `this` contains the scroller when used in ensureFilledViewport(). Since this function is tied to an event, `this` becomes the DOM element the event is tied to.
	 */
	Scroller.prototype.checkViewportOnLoad = function () {
		this.ensureFilledViewport();
	};

	function fullscreenState() {
		return document.fullscreenElement ||
			document.mozFullScreenElement ||
			document.webkitFullscreenElement ||
			document.msFullscreenElement
			? 1
			: 0;
	}

	var previousFullScrenState = fullscreenState();

	/**
	 * Identify archive page that corresponds to majority of posts shown in the current browser window.
	 */
	Scroller.prototype.determineURL = function () {
		var self = this,
			pageNum = -1,
			currentFullScreenState = fullscreenState(),
			wrapperEls,
			maxFactor = 0;

		// xor - check if the state has changed
		if ( previousFullScrenState ^ currentFullScreenState ) {
			// If we just switched to/from fullscreen,
			// don't do the div clearing/caching or the
			// URL setting. Doing so can break video playback
			// if the video goes to fullscreen.

			previousFullScrenState = currentFullScreenState;
			return;
		}
		previousFullScrenState = currentFullScreenState;
		wrapperEls = document.querySelectorAll( '.' + self.wrapperClass );

		for ( var i = 0; i < wrapperEls.length; i++ ) {
			var setMeasurements = self.measure( wrapperEls[ i ] );

			// If it exists, pick a set that is crossed by the middle of the viewport.
			if ( setMeasurements.isActive ) {
				pageNum = parseInt( wrapperEls[ i ].dataset.pageNum, 10 );
				break;
			}

			// If there is such a set, pick the one that occupies the most space
			// above the middle of the viewport.
			if ( setMeasurements.factor > maxFactor ) {
				pageNum = parseInt( wrapperEls[ i ].dataset.pageNum, 10 );
				maxFactor = setMeasurements.factor;
			}

			// Otherwise default to -1
		}

		self.updateURL( pageNum );
	};

	/**
	 * Update address bar to reflect archive page URL for a given page number.
	 * Checks if URL is different to prevent pollution of browser history.
	 */
	Scroller.prototype.updateURL = function ( page ) {
		// IE only supports pushState() in v10 and above, so don't bother if those conditions aren't met.
		if ( ! window.history.pushState ) {
			return;
		}
		var self = this,
			pageSlug = self.origURL;

		if ( -1 !== page ) {
			pageSlug =
				window.location.protocol +
				'//' +
				self.history.host +
				self.history.path.replace( /%d/, page ) +
				self.history.parameters;
		}

		if ( window.location.href != pageSlug ) {
			history.pushState( null, null, pageSlug );
		}
	};

	/**
	 * Pause scrolling.
	 */
	Scroller.prototype.pause = function () {
		this.disabled = true;
	};

	/**
	 * Resume scrolling.
	 */
	Scroller.prototype.resume = function () {
		this.disabled = false;
	};

	/**
	 * Emits custom JS events.
	 *
	 * @param {Node}   el
	 * @param {string} eventName
	 * @param {*}      data
	 */
	Scroller.prototype.trigger = function ( el, eventName, opts ) {
		opts = opts || {};

		/**
		 * Emit the event in a jQuery way for backwards compatibility where necessary.
		 */
		if ( opts.jqueryEventName && 'undefined' !== typeof jQuery ) {
			jQuery( el ).trigger( opts.jqueryEventName, opts.data || null );
		}

		/**
		 * Emit the event in a standard way.
		 */
		var e;
		try {
			e = new CustomEvent( eventName, {
				bubbles: true,
				cancelable: true,
				detail: opts.data || null,
			} );
		} catch ( err ) {
			e = document.createEvent( 'CustomEvent' );
			e.initCustomEvent( eventName, true, true, opts.data || null );
		}
		el.dispatchEvent( e );
	};

	/**
	 * Ready, set, go!
	 */
	var jetpackInfinityModule = function () {
		var bodyClasses = infiniteScroll.settings.body_class.split( ' ' );

		// Check for our variables
		if ( 'object' !== typeof infiniteScroll ) {
			return;
		}

		bodyClasses.forEach( function ( className ) {
			if ( className ) {
				document.body.classList.add( className );
			}
		} );

		// Set ajaxurl (for brevity)
		ajaxurl = infiniteScroll.settings.ajaxurl;

		// Set stats, used for tracking stats
		stats = infiniteScroll.settings.stats;

		// Define what type of infinity we have, grab text for click-handle
		type = infiniteScroll.settings.type;
		text = infiniteScroll.settings.text;
		totop = infiniteScroll.settings.totop;

		// aria text
		loading_text = infiniteScroll.settings.loading_text;

		// Initialize the scroller (with the ID of the element from the theme)
		infiniteScroll.scroller = new Scroller( infiniteScroll.settings );

		/**
		 * Monitor user scroll activity to update URL to correspond to archive page for current set of IS posts
		 */
		if ( type == 'click' ) {
			var timer = null;
			window.addEventListener( 'scroll', function () {
				// run the real scroll handler once every 250 ms.
				if ( timer ) {
					return;
				}
				timer = setTimeout( function () {
					infiniteScroll.scroller.determineURL();
					timer = null;
				}, 250 );
			} );
		}
	};

	/**
	 * Ready, set, go!
	 */
	if ( document.readyState === 'interactive' || document.readyState === 'complete' ) {
		jetpackInfinityModule();
	} else {
		document.addEventListener( 'DOMContentLoaded', jetpackInfinityModule );
	}
} )(); // Close closure
;
!function(e){var t={};function n(o){if(t[o])return t[o].exports;var c=t[o]={i:o,l:!1,exports:{}};return e[o].call(c.exports,c,c.exports,n),c.l=!0,c.exports}n.m=e,n.c=t,n.d=function(e,t,o){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:o})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var o=Object.create(null);if(n.r(o),Object.defineProperty(o,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var c in e)n.d(o,c,function(t){return e[t]}.bind(null,c));return o},n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,"a",t),t},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},n.p="",n(n.s=269)}({269:function(e,t){!function(){"use strict";const{closeLabel:e,leftLabel:t,rightLabel:n}=coblocksLigthboxData,o=document.getElementsByClassName("has-lightbox");Array.from(o).forEach((function(o,c){o.className+=" lightbox-"+c+" ",function(o){const c=document.createElement("div");c.setAttribute("class","coblocks-lightbox");const r=document.createElement("div");r.setAttribute("class","coblocks-lightbox__background");const i=document.createElement("div");i.setAttribute("class","coblocks-lightbox__heading");const l=document.createElement("button");l.setAttribute("class","coblocks-lightbox__close"),l.setAttribute("aria-label",e);const a=document.createElement("span");a.setAttribute("class","coblocks-lightbox__count");const s=document.createElement("div");s.setAttribute("class","coblocks-lightbox__image");const u=document.createElement("img"),b=document.createElement("figcaption");b.setAttribute("class","coblocks-lightbox__caption");const d=document.createElement("button");d.setAttribute("class","coblocks-lightbox__arrow coblocks-lightbox__arrow--left");const g=document.createElement("button");g.setAttribute("class","coblocks-lightbox__arrow coblocks-lightbox__arrow--right");const m=document.createElement("div");m.setAttribute("class","arrow-right"),m.setAttribute("aria-label",n);const f=document.createElement("div");f.setAttribute("class","arrow-left"),f.setAttribute("aria-label",t);const h=[`.has-lightbox.lightbox-${o} > :not(.carousel-nav) figure img`,`figure.has-lightbox.lightbox-${o} > img`,`.has-lightbox.lightbox-${o} > figure[class^="align"] img`].join(", "),p=[`.has-lightbox.lightbox-${o} > :not(.carousel-nav) figure figcaption`].join(", "),x=document.querySelectorAll(h),y=document.querySelectorAll(p);let k;i.append(a,l),s.append(u,b),d.append(f),g.append(m),c.append(r,i,s,d,g),x.length>0&&(document.getElementsByTagName("BODY")[0].append(c),1===x.length&&(g.remove(),d.remove()));y.length>0&&Array.from(y).forEach((function(e,t){e.addEventListener("click",(function(){E(t)}))}));Array.from(x).forEach((function(e,t){e.closest("figure").addEventListener("click",(function(){E(t)}))})),d.addEventListener("click",(function(){k=0===k?x.length-1:k-1,E(k)})),g.addEventListener("click",(function(){k=k===x.length-1?0:k+1,E(k)})),r.addEventListener("click",(function(){c.style.display="none"})),l.addEventListener("click",(function(){c.style.display="none"}));const v={preloaded:!1,setPreloadImages:()=>{v.preloaded||(v.preloaded=!0,Array.from(x).forEach((function(e,t){v["img-"+t]=new window.Image,v["img-"+t].src=e.attributes.src.value,v["img-"+t]["data-caption"]=x[t]&&x[t].nextElementSibling?function(e){let t=e.nextElementSibling;for(;t;){if(t.matches("figcaption"))return t.innerHTML;t=t.nextElementSibling}return""}(x[t]):""})),document.onkeydown=function(e){if(void 0!==c&&"none"!==c)switch((e=e||window.event).keyCode){case 27:l.click();break;case 37:case 65:d.click();break;case 39:case 68:g.click()}})}};function E(e){v.setPreloadImages(),k=e,c.style.display="flex",r.style.backgroundImage=`url(${v["img-"+k].src})`,u.src=v["img-"+k].src,b.innerHTML=v["img-"+k]["data-caption"],a.textContent=`${k+1} / ${x.length}`}}(c)}))}()}});;
( function( $ ) {

	var debounce = function( func, wait ) {
		var timeout, args, context, timestamp;
		return function() {
			context = this;
			args = [].slice.call( arguments, 0 );
			timestamp = new Date();
			var later = function() {
				var last = ( new Date() ) - timestamp;
				if ( last < wait ) {
					timeout = setTimeout( later, wait - last );
				} else {
					timeout = null;
					func.apply( context, args );
				}
			};
			if ( ! timeout ) {
				timeout = setTimeout( later, wait );
			}
		};
	};

	function menuDropdownToggle() {
		$( '.main-navigation .page_item_has_children > a, .main-navigation .menu-item-has-children > a, .widget_nav_menu .page_item_has_children > a, .widget_nav_menu .menu-item-has-children > a' ).each( function() {
			if ( ! $( this ).find( '.dropdown-toggle' ).length ) {
				$( this ).append( '<button class="dropdown-toggle" aria-expanded="false"/>' );
			}
		} );

		if ( $( window ).width() > 959 ) {
			$( '.main-navigation .dropdown-toggle' ).remove();
		}
	}

	$( window ).load( menuDropdownToggle ).resize( debounce( menuDropdownToggle, 500 ) );

	$( window ).load( function() {
		var menu = $( '#masthead' ).find( 'div' );
		if ( ! menu || ! menu.children().length ) {
			return;
		}

		$( '.dropdown-toggle' ).click( function( event ) {
			event.preventDefault();
			$( this ).toggleClass( 'toggled' );
			$( this ).parent().next( '.children, .sub-menu' ).toggleClass( 'toggled' );
			$( this ).attr( 'aria-expanded', $( this ).attr( 'aria-expanded' ) === 'false' ? 'true' : 'false' );
		} );

		if ( 'ontouchstart' in window ) {
			menu.find( '.menu-item-has-children > a' ).on( 'touchstart', function( e ) {
				var el = $( this ).parent( 'li' );

				if ( ! el.hasClass( 'focus' ) ) {
					e.preventDefault();
					el.toggleClass( 'focus' );
					el.siblings( '.focus' ).removeClass( 'focus' );
				}
			} );
		}

		menu.find( 'a' ).on( 'focus blur', function() {
			$( this ).parents( '.menu-item' ).toggleClass( 'focus' );
		} );
	} );

} )( jQuery );

( function() {

	var container, button, menu;

	container = document.getElementById( 'site-navigation' );
	if ( ! container ) {
		return;
	}

	button = container.getElementsByTagName( 'button' )[0];
	if ( 'undefined' === typeof button ) {
		return;
	}

	menu = container.getElementsByTagName( 'ul' )[0];
	if ( 'undefined' === typeof menu ) {
		button.style.display = 'none';
		return;
	}
	menu.setAttribute( 'aria-expanded', 'false' );

	if ( -1 === menu.className.indexOf( 'nav-menu' ) ) {
		menu.className += ' nav-menu';
	}

	button.onclick = function() {
		if ( -1 !== container.className.indexOf( 'toggled' ) ) {
			container.className = container.className.replace( ' toggled', '' );
			button.setAttribute( 'aria-expanded', 'false' );
			menu.setAttribute( 'aria-expanded', 'false' );
		} else {
			container.className += ' toggled';
			button.setAttribute( 'aria-expanded', 'true' );
			menu.setAttribute( 'aria-expanded', 'true' );
		}
	};

} )();
;
( function( $ ) {

	$( window ).load( function() {

		/* Use Featured Image as a Background Image */
		var featuredContent = $( '#featured-content' );
		if ( ! featuredContent.length ) {
			return;
		}

		featuredContent.find( 'article' ).each( function() {
			if ( ! $( this ).hasClass( 'background-done' ) && $( this ).hasClass( 'has-post-thumbnail' ) ) {
				var entryImage = $( this ).find( '.post-thumbnail' ),
				    thumbnail = $( this ).find( 'img' );
				entryImage.css( 'background-image', 'url(' + thumbnail.attr( 'src' ) + ')' );
				$( this ).addClass( 'background-done' );
			}
		} );

	} );

} )( jQuery );
;
( function() {

	var siteBranding = document.getElementsByClassName( 'site-branding' )[0];
	if ( siteBranding.clientHeight > 0 ) {
		return;
	}
	document.body.className += ' no-site-branding';

} )();
;
( function( $ ) {

	$( window ).load( function() {

		function searchAddClass() {
			$( this ).closest( '.search-form' ).addClass( 'hover' );
		}
		function searchRemoveClass() {
			$( this ).closest( '.search-form' ).removeClass( 'hover' );
		}
		var searchSubmit = $( '.search-submit' );
		searchSubmit.hover( searchAddClass, searchRemoveClass );
		searchSubmit.focusin( searchAddClass );
		searchSubmit.focusout( searchRemoveClass );

	} );

} )( jQuery );

( function() {

	var container, button, form, siteHeaderInner, siteNavigation, div;

	container = document.getElementById( 'search-header' );
	if ( ! container ) {
		return;
	}

	button = container.getElementsByTagName( 'button' )[0];
	if ( 'undefined' === typeof button ) {
		return;
	}

	form = container.getElementsByTagName( 'form' )[0];
	if ( 'undefined' === typeof form ) {
		button.style.display = 'none';
		return;
	}
	form.setAttribute( 'aria-expanded', 'false' );

	button.onclick = function() {
		if ( -1 !== container.className.indexOf( 'toggled' ) ) {
			document.body.className = document.body.className.replace( ' search-toggled', '' );
			container.className = container.className.replace( ' toggled', '' );
			button.setAttribute( 'aria-expanded', 'false' );
			form.setAttribute( 'aria-expanded', 'false' );
		} else {
			document.body.className += ' search-toggled';
			container.className += ' toggled';
			button.setAttribute( 'aria-expanded', 'true' );
			form.setAttribute( 'aria-expanded', 'true' );
		}
	};

} )();
;
( function() {

	var sidebar, button, footer;

	sidebar = document.getElementById( 'secondary' );
	if ( ! sidebar ) {
		return;
	}

	button = document.getElementsByClassName( 'sidebar-toggle' )[0];
	if ( 'undefined' === typeof button ) {
		return;
	}

	sidebar.setAttribute( 'aria-expanded', 'false' );

	button.onclick = function() {
		if ( -1 !== sidebar.className.indexOf( 'toggled' ) ) {
			sidebar.className = sidebar.className.replace( ' toggled', '' );
			button.className = button.className.replace( ' toggled', '' );
			sidebar.setAttribute( 'aria-expanded', 'false' );
			button.setAttribute( 'aria-expanded', 'false' );
		} else {
			sidebar.className += ' toggled';
			button.className += ' toggled';
			sidebar.setAttribute( 'aria-expanded', 'true' );
			button.setAttribute( 'aria-expanded', 'true' );
		}
	};

} )();
;
( function( $ ) {

	var debounce = function( func, wait ) {
		var timeout, args, context, timestamp;
		return function() {
			context = this;
			args = [].slice.call( arguments, 0 );
			timestamp = new Date();
			var later = function() {
				var last = ( new Date() ) - timestamp;
				if ( last < wait ) {
					timeout = setTimeout( later, wait - last );
				} else {
					timeout = null;
					func.apply( context, args );
				}
			};
			if ( ! timeout ) {
				timeout = setTimeout( later, wait );
			}
		};
	};

	function postsStyles() {
		var marginSize = 30;
		if ( $( window ).width() > 599 ) {
			marginSize = 60;
		}
		$( '.site-main .hentry' ).each( function() {
			if ( $( this ).hasClass( 'has-post-thumbnail' ) && ( $( this ).hasClass( 'format-image' ) || $( this ).hasClass( 'format-gallery' ) ) && ! $( this ).parent().hasClass( 'featured-content' ) ) {
				var postThumbnail = $( this ).find( '.post-thumbnail' ),
				    thumbnail = $( this ).find( 'img' );
				postThumbnail.css( {
					'background-image': 'url(' + thumbnail.attr( 'src' ) + ')',
					'height': $( this ).outerHeight() - marginSize
				} );
			}
		} );
	}

	$( window ).load( postsStyles ).resize( debounce( postsStyles, 500 ) );

	$( document ).on( 'post-load', postsStyles );

} )( jQuery );
;
( function() {
	var is_webkit = navigator.userAgent.toLowerCase().indexOf( 'webkit' ) > -1,
	    is_opera  = navigator.userAgent.toLowerCase().indexOf( 'opera' )  > -1,
	    is_ie     = navigator.userAgent.toLowerCase().indexOf( 'msie' )   > -1;

	if ( ( is_webkit || is_opera || is_ie ) && document.getElementById && window.addEventListener ) {
		window.addEventListener( 'hashchange', function() {
			var id = location.hash.substring( 1 ),
				element;

			if ( ! ( /^[A-z0-9_-]+$/.test( id ) ) ) {
				return;
			}

			element = document.getElementById( id );

			if ( element ) {
				if ( ! ( /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) ) {
					element.tabIndex = -1;
				}

				element.focus();
			}
		}, false );
	}
})();
;
/* global FB, jpfbembed */
( function ( window ) {
	var facebookEmbed = function () {
		var fbroot, src, newScript, firstScript;

		if ( 'undefined' !== typeof FB && FB.XFBML ) {
			FB.XFBML.parse();
		} else {
			fbroot = document.createElement( 'div' );
			fbroot.id = 'fb-root';
			document.getElementsByTagName( 'body' )[ 0 ].appendChild( fbroot );

			src = 'https://connect.facebook.net/' + jpfbembed.locale + '/sdk.js#xfbml=1';
			if ( jpfbembed.appid ) {
				src += '&appId=' + jpfbembed.appid;
			}
			src += '&version=v2.3';

			newScript = document.createElement( 'script' );
			newScript.setAttribute( 'src', src );
			firstScript = document.querySelector( 'script' );
			firstScript.parentNode.insertBefore( newScript, firstScript );
		}
	};

	window.fbAsyncInit = function () {
		FB.init( {
			appId: jpfbembed.appid,
			version: 'v2.3',
		} );

		FB.XFBML.parse();
	};

	if ( 'undefined' !== typeof infiniteScroll ) {
		document.body.addEventListener( 'post-load', facebookEmbed );
	}

	facebookEmbed();
} )( window );
;
! ( function ( d, s, id ) {
	var js,
		fjs = d.getElementsByTagName( s )[ 0 ],
		p = /^http:/.test( d.location ) ? 'http' : 'https';
	if ( ! d.getElementById( id ) ) {
		js = d.createElement( s );
		js.id = id;
		js.src = p + '://platform.twitter.com/widgets.js';
		fjs.parentNode.insertBefore( js, fjs );
	}
} )( document, 'script', 'twitter-wjs' );
;
/* globals JSON */
( function () {
	var eventName = 'wpcom_masterbar_click';

	var linksTracksEvents = {
		// top level items
		'wp-admin-bar-blog'                        : 'my_sites',
		'wp-admin-bar-newdash'                     : 'reader',
		'wp-admin-bar-ab-new-post'                 : 'write_button',
		'wp-admin-bar-my-account'                  : 'my_account',
		'wp-admin-bar-notes'                       : 'notifications',
		// my sites - top items
		'wp-admin-bar-switch-site'                 : 'my_sites_switch_site',
		'wp-admin-bar-blog-info'                   : 'my_sites_site_info',
		'wp-admin-bar-site-view'                   : 'my_sites_view_site',
		'wp-admin-bar-blog-stats'                  : 'my_sites_site_stats',
		'wp-admin-bar-plan'                        : 'my_sites_plan',
		'wp-admin-bar-plan-badge'                  : 'my_sites_plan_badge',
		// my sites - manage
		'wp-admin-bar-edit-page'                   : 'my_sites_manage_site_pages',
		'wp-admin-bar-new-page-badge'              : 'my_sites_manage_add_page',
		'wp-admin-bar-edit-post'                   : 'my_sites_manage_blog_posts',
		'wp-admin-bar-new-post-badge'              : 'my_sites_manage_add_post',
		'wp-admin-bar-edit-attachment'             : 'my_sites_manage_media',
		'wp-admin-bar-new-attachment-badge'        : 'my_sites_manage_add_media',
		'wp-admin-bar-comments'                    : 'my_sites_manage_comments',
		'wp-admin-bar-edit-jetpack-testimonial'    : 'my_sites_manage_testimonials',
		'wp-admin-bar-new-jetpack-testimonial'     : 'my_sites_manage_add_testimonial',
		'wp-admin-bar-edit-jetpack-portfolio'      : 'my_sites_manage_portfolio',
		'wp-admin-bar-new-jetpack-portfolio'       : 'my_sites_manage_add_portfolio',
		// my sites - personalize
		'wp-admin-bar-themes'                      : 'my_sites_personalize_themes',
		'wp-admin-bar-cmz'                         : 'my_sites_personalize_themes_customize',
		// my sites - configure
		'wp-admin-bar-sharing'                     : 'my_sites_configure_sharing',
		'wp-admin-bar-people'                      : 'my_sites_configure_people',
		'wp-admin-bar-people-add'                  : 'my_sites_configure_people_add_button',
		'wp-admin-bar-plugins'                     : 'my_sites_configure_plugins',
		'wp-admin-bar-domains'                     : 'my_sites_configure_domains',
		'wp-admin-bar-domains-add'                 : 'my_sites_configure_add_domain',
		'wp-admin-bar-blog-settings'               : 'my_sites_configure_settings',
		'wp-admin-bar-legacy-dashboard'            : 'my_sites_configure_wp_admin',
		// reader
		'wp-admin-bar-followed-sites'              : 'reader_followed_sites',
		'wp-admin-bar-reader-followed-sites-manage': 'reader_manage_followed_sites',
		'wp-admin-bar-discover-discover'           : 'reader_discover',
		'wp-admin-bar-discover-search'             : 'reader_search',
		'wp-admin-bar-my-activity-my-likes'        : 'reader_my_likes',
		// account
		'wp-admin-bar-user-info'                   : 'my_account_user_name',
		// account - profile
		'wp-admin-bar-my-profile'                  : 'my_account_profile_my_profile',
		'wp-admin-bar-account-settings'            : 'my_account_profile_account_settings',
		'wp-admin-bar-billing'                     : 'my_account_profile_manage_purchases',
		'wp-admin-bar-security'                    : 'my_account_profile_security',
		'wp-admin-bar-notifications'               : 'my_account_profile_notifications',
		// account - special
		'wp-admin-bar-get-apps'                    : 'my_account_special_get_apps',
		'wp-admin-bar-next-steps'                  : 'my_account_special_next_steps',
		'wp-admin-bar-help'                        : 'my_account_special_help',
	};

	var notesTracksEvents = {
		openSite: function ( data ) {
			return {
				clicked: 'masterbar_notifications_panel_site',
				site_id: data.siteId
			};
		},
		openPost: function ( data ) {
			return {
				clicked: 'masterbar_notifications_panel_post',
				site_id: data.siteId,
				post_id: data.postId
			};
		},
		openComment: function ( data ) {
			return {
				clicked: 'masterbar_notifications_panel_comment',
				site_id: data.siteId,
				post_id: data.postId,
				comment_id: data.commentId
			};
		}
	};

	// Element.prototype.matches as a standalone function, with old browser fallback
	function matches( node, selector ) {
		if ( ! node ) {
			return undefined;
		}

		if ( ! Element.prototype.matches && ! Element.prototype.msMatchesSelector ) {
			throw new Error( 'Unsupported browser' );
		}

		return Element.prototype.matches ? node.matches( selector ) : node.msMatchesSelector( selector );
	}

	// Element.prototype.closest as a standalone function, with old browser fallback
	function closest( node, selector ) {
		if ( ! node ) {
			return undefined;
		}

		if ( Element.prototype.closest ) {
			return node.closest( selector );
		}

		do {
			if ( matches( node, selector ) ) {
				return node;
			}

			node = node.parentElement || node.parentNode;
		} while ( node !== null && node.nodeType === 1 );

		return null;
	}

	function recordTracksEvent( eventProps ) {
		eventProps = eventProps || {};
		window._tkq = window._tkq || [];
		window._tkq.push( [ 'recordEvent', eventName, eventProps ] );
	}

	function parseJson( s, defaultValue ) {
		try {
			return JSON.parse( s );
		} catch ( e ) {
			return defaultValue;
		}
	}

	function createTrackableLinkEventHandler( link ) {
		return function () {
			var parent = closest( link, 'li' );

			if ( ! parent ) {
				return;
			}

			var trackingId = link.getAttribute( 'ID' ) || parent.getAttribute( 'ID' );

			if ( ! linksTracksEvents.hasOwnProperty( trackingId ) ) {
				return;
			}

			var eventProps = { 'clicked': linksTracksEvents[ trackingId ] };
			recordTracksEvent( eventProps );
		}
	}

	function init() {
		var trackableLinkSelector = '.mb-trackable .ab-item:not(div),' +
			'#wp-admin-bar-notes .ab-item,' +
			'#wp-admin-bar-user-info .ab-item,' +
			'.mb-trackable .ab-secondary';

		var trackableLinks = document.querySelectorAll( trackableLinkSelector );

		for ( var i = 0; i < trackableLinks.length; i++ ) {
			var link = trackableLinks[ i ];
			var handler = createTrackableLinkEventHandler( link );

			link.addEventListener( 'click', handler );
			link.addEventListener( 'touchstart', handler );
		}
	}

	if ( document.readyState === 'loading' ) {
		document.addEventListener( 'DOMContentLoaded', init );
	} else {
		init();
	}

	// listen for postMessage events from the notifications iframe
	window.addEventListener( 'message', function ( event ) {
		if ( event.origin !== 'https://widgets.wp.com' ) {
			return;
		}

		var data = ( typeof event.data === 'string' ) ? parseJson( event.data, {} ) : event.data;
		if ( data.type !== 'notesIframeMessage' ) {
			return;
		}

		var eventData = notesTracksEvents[ data.action ];
		if ( ! eventData ) {
			return;
		}

		recordTracksEvent( eventData( data ) );
	}, false );

} )();
;
/* global wpcom, jetpackCarouselStrings, DocumentTouch */

( function () {
	'use strict';
	var swiper;
	/////////////////////////////////////
	// Utility functions
	/////////////////////////////////////
	var util = ( function () {
		var noop = function () {};

		function texturize( text ) {
			// Ensure we get a string.
			text = text + '';
			text = text.replace( /'/g, '&#8217;' ).replace( /&#039;/g, '&#8217;' );
			text = text
				.replace( /"/g, '&#8221;' )
				.replace( /&#034;/g, '&#8221;' )
				.replace( /&quot;/g, '&#8221;' )
				.replace( /[\u201D]/g, '&#8221;' );
			// Untexturize allowed HTML tags params double-quotes.
			text = text.replace( /([\w]+)=&#[\d]+;(.+?)&#[\d]+;/g, '$1="$2"' );
			return text.trim();
		}

		function applyReplacements( text, replacements ) {
			if ( ! text ) {
				return;
			}
			if ( ! replacements ) {
				return text;
			}
			return text.replace( /{(\d+)}/g, function ( match, number ) {
				return typeof replacements[ number ] !== 'undefined' ? replacements[ number ] : match;
			} );
		}

		function getBackgroundImage( imgEl ) {
			var canvas = document.createElement( 'canvas' ),
				context = canvas.getContext && canvas.getContext( '2d' );

			if ( ! imgEl ) {
				return;
			}

			context.filter = 'blur(20px) ';
			context.drawImage( imgEl, 0, 0 );
			var url = canvas.toDataURL( 'image/png' );
			canvas = null;

			return url;
		}

		return {
			noop: noop,
			texturize: texturize,
			applyReplacements: applyReplacements,
			getBackgroundImage: getBackgroundImage,
		};
	} )();

	/////////////////////////////////////
	// DOM-related utility functions
	/////////////////////////////////////
	var domUtil = ( function () {
		// Helper matches function (not a polyfill), compatible with IE 11.
		function matches( el, sel ) {
			if ( Element.prototype.matches ) {
				return el.matches( sel );
			}

			if ( Element.prototype.msMatchesSelector ) {
				return el.msMatchesSelector( sel );
			}
		}

		// Helper closest parent node function (not a polyfill) based on
		// https://developer.mozilla.org/en-US/docs/Web/API/Element/closest#Polyfill
		function closest( el, sel ) {
			if ( el.closest ) {
				return el.closest( sel );
			}

			var current = el;

			do {
				if ( matches( current, sel ) ) {
					return current;
				}
				current = current.parentElement || current.parentNode;
			} while ( current !== null && current.nodeType === 1 );

			return null;
		}

		function hide( el ) {
			if ( el ) {
				el.style.display = 'none';
			}
		}

		function show( el ) {
			if ( el ) {
				// Everything we show and hide in Carousel is currently a block,
				// so we can make this really straightforward.
				el.style.display = 'block';
			}
		}

		function fade( el, start, end, callback ) {
			if ( ! el ) {
				return callback();
			}

			// Prepare for transition.
			// Ensure the item is in the render tree, in its initial state.
			el.style.removeProperty( 'display' );
			el.style.opacity = start;
			el.style.transition = 'opacity 0.2s';
			el.style.pointerEvents = 'none';

			var finished = function ( e ) {
				if ( e.target === el && e.propertyName === 'opacity' ) {
					el.style.removeProperty( 'transition' );
					el.style.removeProperty( 'opacity' );
					el.style.removeProperty( 'pointer-events' );
					el.removeEventListener( 'transitionend', finished );
					el.removeEventListener( 'transitioncancel', finished );
					callback();
				}
			};

			requestAnimationFrame( function () {
				// Double rAF for browser compatibility.
				requestAnimationFrame( function () {
					el.addEventListener( 'transitionend', finished );
					el.addEventListener( 'transitioncancel', finished );
					// Trigger transition.
					el.style.opacity = end;
				} );
			} );
		}

		function fadeIn( el, callback ) {
			callback = callback || util.noop;
			fade( el, '0', '1', callback );
		}

		function fadeOut( el, callback ) {
			callback = callback || util.noop;
			fade( el, '1', '0', function () {
				if ( el ) {
					el.style.display = 'none';
				}
				callback();
			} );
		}

		function emitEvent( el, type, detail ) {
			var e;
			try {
				e = new CustomEvent( type, {
					bubbles: true,
					cancelable: true,
					detail: detail || null,
				} );
			} catch ( err ) {
				e = document.createEvent( 'CustomEvent' );
				e.initCustomEvent( type, true, true, detail || null );
			}
			el.dispatchEvent( e );
		}

		// From: https://easings.net/#easeInOutQuad
		function easeInOutQuad( num ) {
			return num < 0.5 ? 2 * num * num : 1 - Math.pow( -2 * num + 2, 2 ) / 2;
		}

		function getFooterClearance( container ) {
			var footer = container.querySelector( '.jp-carousel-info-footer' );
			var infoArea = container.querySelector( '.jp-carousel-info-extra' );
			var contentArea = container.querySelector( '.jp-carousel-info-content-wrapper' );

			if ( footer && infoArea && contentArea ) {
				var styles = window.getComputedStyle( infoArea );
				var padding = parseInt( styles.paddingTop, 10 ) + parseInt( styles.paddingBottom, 10 );
				padding = isNaN( padding ) ? 0 : padding;
				return contentArea.offsetHeight + footer.offsetHeight + padding;
			}
			return 0;
		}

		function isTouch() {
			return (
				'ontouchstart' in window || ( window.DocumentTouch && document instanceof DocumentTouch )
			);
		}

		function scrollToElement( el, container, callback ) {
			if ( ! el || ! container ) {
				if ( callback ) {
					return callback();
				}
				return;
			}

			// For iOS Safari compatibility, use JS to set the minimum height.
			var infoArea = container.querySelector( '.jp-carousel-info-extra' );
			if ( infoArea ) {
				// 64px is the same height as `.jp-carousel-info-footer` in the CSS.
				infoArea.style.minHeight = window.innerHeight - 64 + 'px';
			}

			var isScrolling = true;
			var startTime = Date.now();
			var duration = 300;
			var originalPosition = container.scrollTop;
			var targetPosition = Math.max(
				0,
				el.offsetTop - Math.max( 0, window.innerHeight - getFooterClearance( container ) )
			);
			var distance = targetPosition - container.scrollTop;
			distance = Math.min( distance, container.scrollHeight - window.innerHeight );

			function stopScroll() {
				isScrolling = false;
			}

			function runScroll() {
				var now = Date.now();
				var progress = easeInOutQuad( ( now - startTime ) / duration );

				progress = progress > 1 ? 1 : progress;
				var newVal = progress * distance;
				container.scrollTop = originalPosition + newVal;

				if ( now <= startTime + duration && isScrolling ) {
					return requestAnimationFrame( runScroll );
				}
				if ( callback ) {
					callback();
				}
				if ( infoArea ) {
					infoArea.style.minHeight = '';
				}
				isScrolling = false;
				container.removeEventListener( 'wheel', stopScroll );
			}

			// Allow scroll to be cancelled by user interaction.
			container.addEventListener( 'wheel', stopScroll );
			runScroll();
		}

		function getJSONAttribute( el, attr ) {
			if ( ! el || ! el.hasAttribute( attr ) ) {
				return undefined;
			}

			try {
				return JSON.parse( el.getAttribute( attr ) );
			} catch ( e ) {
				return undefined;
			}
		}

		function convertToPlainText( html ) {
			var dummy = document.createElement( 'div' );
			dummy.textContent = html;
			return dummy.innerHTML;
		}

		function stripHTML( text ) {
			return text.replace( /<[^>]*>?/gm, '' );
		}

		return {
			closest: closest,
			matches: matches,
			hide: hide,
			show: show,
			fadeIn: fadeIn,
			fadeOut: fadeOut,
			scrollToElement: scrollToElement,
			getJSONAttribute: getJSONAttribute,
			convertToPlainText: convertToPlainText,
			stripHTML: stripHTML,
			emitEvent: emitEvent,
			isTouch: isTouch,
		};
	} )();

	/////////////////////////////////////
	// Carousel implementation
	/////////////////////////////////////
	function init() {
		var commentInterval;
		var screenPadding;
		var originalOverflow;
		var originalHOverflow;
		var scrollPos;

		var lastKnownLocationHash = '';
		var isUserTyping = false;

		var gallerySelector =
			'div.gallery, div.tiled-gallery, ul.wp-block-gallery, ul.blocks-gallery-grid, ' +
			'figure.wp-block-gallery.has-nested-images, div.wp-block-jetpack-tiled-gallery, a.single-image-gallery';

		// Selector for items within a gallery or tiled gallery.
		var galleryItemSelector =
			'.gallery-item, .tiled-gallery-item, .blocks-gallery-item, ' + ' .tiled-gallery__item';

		// Selector for all items including single images.
		var itemSelector = galleryItemSelector + ', .wp-block-image';

		var carousel = {};

		var stat =
			typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.stat
				? wpcom.carousel.stat
				: util.noop;

		var pageview =
			typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.pageview
				? wpcom.carousel.pageview
				: util.noop;

		function handleKeyboardEvent( e ) {
			if ( ! isUserTyping ) {
				switch ( e.which ) {
					case 38: // up
						e.preventDefault();
						carousel.overlay.scrollTop -= 100;
						break;
					case 40: // down
						e.preventDefault();
						carousel.overlay.scrollTop += 100;
						break;
					case 39: // right
						e.preventDefault();
						swiper.slideNext();
						break;
					case 37: // left
					case 8: // backspace
						e.preventDefault();
						swiper.slidePrev();
						break;
					case 27: // escape
						e.preventDefault();
						closeCarousel();
						break;
					default:
						break;
				}
			}
		}

		function disableKeyboardNavigation() {
			isUserTyping = true;
		}

		function enableKeyboardNavigation() {
			isUserTyping = false;
		}

		function calculatePadding() {
			var baseScreenPadding = 110;
			screenPadding = baseScreenPadding;

			if ( window.innerWidth <= 760 ) {
				screenPadding = Math.round( ( window.innerWidth / 760 ) * baseScreenPadding );

				if ( screenPadding < 40 && domUtil.isTouch() ) {
					screenPadding = 0;
				}
			}
		}

		function initializeCarousel() {
			if ( ! carousel.overlay ) {
				carousel.overlay = document.querySelector( '.jp-carousel-overlay' );
				carousel.container = carousel.overlay.querySelector( '.jp-carousel-wrap' );
				carousel.gallery = carousel.container.querySelector( '.jp-carousel' );
				carousel.info = carousel.overlay.querySelector( '.jp-carousel-info' );
				carousel.caption = carousel.info.querySelector( '.jp-carousel-caption' );
				carousel.commentField = carousel.overlay.querySelector(
					'#jp-carousel-comment-form-comment-field'
				);
				carousel.emailField = carousel.overlay.querySelector(
					'#jp-carousel-comment-form-email-field'
				);
				carousel.authorField = carousel.overlay.querySelector(
					'#jp-carousel-comment-form-author-field'
				);
				carousel.urlField = carousel.overlay.querySelector( '#jp-carousel-comment-form-url-field' );

				calculatePadding();

				[
					carousel.commentField,
					carousel.emailField,
					carousel.authorField,
					carousel.urlField,
				].forEach( function ( field ) {
					if ( field ) {
						field.addEventListener( 'focus', disableKeyboardNavigation );
						field.addEventListener( 'blur', enableKeyboardNavigation );
					}
				} );

				carousel.overlay.addEventListener( 'click', function ( e ) {
					var target = e.target;
					var isTargetCloseHint = !! domUtil.closest( target, '.jp-carousel-close-hint' );
					var isSmallScreen = !! window.matchMedia( '(max-device-width: 760px)' ).matches;
					if ( target === carousel.overlay ) {
						if ( isSmallScreen ) {
							return;
						} else {
							closeCarousel();
						}
					} else if ( isTargetCloseHint ) {
						closeCarousel();
					} else if ( target.classList.contains( 'jp-carousel-image-download' ) ) {
						stat( 'download_original_click' );
					} else if ( target.classList.contains( 'jp-carousel-comment-login' ) ) {
						handleCommentLoginClick( e );
					} else if ( domUtil.closest( target, '#jp-carousel-comment-form-container' ) ) {
						handleCommentFormClick( e );
					} else if (
						domUtil.closest( target, '.jp-carousel-photo-icons-container' ) ||
						target.classList.contains( 'jp-carousel-photo-title' )
					) {
						handleFooterElementClick( e );
					} else if ( ! domUtil.closest( target, '.jp-carousel-info' ) ) {
						return;
					}
				} );

				window.addEventListener( 'keydown', handleKeyboardEvent );

				carousel.overlay.addEventListener( 'jp_carousel.afterOpen', function () {
					enableKeyboardNavigation();

					// Don't show navigation if there's only one image.
					if ( carousel.slides.length <= 1 ) {
						return;
					}
					// Show dot pagination if slide count is <= 5, otherwise show n/total.
					if ( carousel.slides.length <= 5 ) {
						domUtil.show( carousel.info.querySelector( '.jp-swiper-pagination' ) );
					} else {
						domUtil.show( carousel.info.querySelector( '.jp-carousel-pagination' ) );
					}
				} );

				carousel.overlay.addEventListener( 'jp_carousel.beforeClose', function () {
					disableKeyboardNavigation();

					// Fixes some themes where closing carousel brings view back to top.
					document.documentElement.style.removeProperty( 'height' );

					// If we disable the swiper (because there's only one image)
					// we have to re-enable it here again as Swiper doesn't, for some reason,
					// show the navigation buttons again after reinitialization.
					if ( swiper ) {
						swiper.enable();
					}

					// Hide pagination.
					domUtil.hide( carousel.info.querySelector( '.jp-swiper-pagination' ) );
					domUtil.hide( carousel.info.querySelector( '.jp-carousel-pagination' ) );
				} );

				carousel.overlay.addEventListener( 'jp_carousel.afterClose', function () {
					// don't force the browser back when the carousel closes.
					if ( window.history.pushState ) {
						history.pushState(
							'',
							document.title,
							window.location.pathname + window.location.search
						);
					} else {
						window.location.href = '';
					}
					lastKnownLocationHash = '';
					carousel.isOpen = false;
				} );

				// Prevent native browser zooming
				carousel.overlay.addEventListener( 'touchstart', function ( e ) {
					if ( e.touches.length > 1 ) {
						e.preventDefault();
					}
				} );
			}
		}

		function handleCommentLoginClick() {
			var slide = carousel.currentSlide;
			var attachmentId = slide ? slide.attrs.attachmentId : '0';

			window.location.href = jetpackCarouselStrings.login_url + '%23jp-carousel-' + attachmentId;
		}

		function updatePostResults( msg, isSuccess ) {
			var results = carousel.overlay.querySelector( '#jp-carousel-comment-post-results' );
			var elClass = 'jp-carousel-comment-post-' + ( isSuccess ? 'success' : 'error' );
			results.innerHTML = '<span class="' + elClass + '">' + msg + '</span>';
			domUtil.hide( carousel.overlay.querySelector( '#jp-carousel-comment-form-spinner' ) );
			carousel.overlay
				.querySelector( '#jp-carousel-comment-form' )
				.classList.remove( 'jp-carousel-is-disabled' );
			domUtil.show( results );
		}

		function handleCommentFormClick( e ) {
			var target = e.target;
			var data = domUtil.getJSONAttribute( carousel.container, 'data-carousel-extra' ) || {};
			var attachmentId = carousel.currentSlide.attrs.attachmentId;

			var wrapper = document.querySelector( '#jp-carousel-comment-form-submit-and-info-wrapper' );
			var spinner = document.querySelector( '#jp-carousel-comment-form-spinner' );
			var submit = document.querySelector( '#jp-carousel-comment-form-button-submit' );
			var form = document.querySelector( '#jp-carousel-comment-form' );

			if (
				carousel.commentField &&
				carousel.commentField.getAttribute( 'id' ) === target.getAttribute( 'id' )
			) {
				// For first page load
				disableKeyboardNavigation();
				domUtil.show( wrapper );
			} else if ( domUtil.matches( target, 'input[type="submit"]' ) ) {
				e.preventDefault();
				e.stopPropagation();

				domUtil.show( spinner );
				form.classList.add( 'jp-carousel-is-disabled' );

				var ajaxData = {
					action: 'post_attachment_comment',
					nonce: jetpackCarouselStrings.nonce,
					blog_id: data.blog_id,
					id: attachmentId,
					comment: carousel.commentField.value,
				};

				if ( ! ajaxData.comment.length ) {
					updatePostResults( jetpackCarouselStrings.no_comment_text, false );
					return;
				}

				if ( Number( jetpackCarouselStrings.is_logged_in ) !== 1 ) {
					ajaxData.email = carousel.emailField.value;
					ajaxData.author = carousel.authorField.value;
					ajaxData.url = carousel.urlField.value;

					if ( Number( jetpackCarouselStrings.require_name_email ) === 1 ) {
						if ( ! ajaxData.email.length || ! ajaxData.email.match( '@' ) ) {
							updatePostResults( jetpackCarouselStrings.no_comment_email, false );
							return;
						} else if ( ! ajaxData.author.length ) {
							updatePostResults( jetpackCarouselStrings.no_comment_author, false );
							return;
						}
					}
				}

				var xhr = new XMLHttpRequest();
				xhr.open( 'POST', jetpackCarouselStrings.ajaxurl, true );
				xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' );
				xhr.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8' );

				xhr.onreadystatechange = function () {
					if (
						this.readyState === XMLHttpRequest.DONE &&
						this.status >= 200 &&
						this.status < 300
					) {
						var response;
						try {
							response = JSON.parse( this.response );
						} catch ( error ) {
							updatePostResults( jetpackCarouselStrings.comment_post_error, false );
							return;
						}
						if ( response.comment_status === 'approved' ) {
							updatePostResults( jetpackCarouselStrings.comment_approved, true );
						} else if ( response.comment_status === 'unapproved' ) {
							updatePostResults( jetpackCarouselStrings.comment_unapproved, true );
						} else {
							// 'deleted', 'spam', false
							updatePostResults( jetpackCarouselStrings.comment_post_error, false );
						}
						clearCommentTextAreaValue();
						fetchComments( attachmentId );
						submit.value = jetpackCarouselStrings.post_comment;
						domUtil.hide( spinner );
						form.classList.remove( 'jp-carousel-is-disabled' );
					} else {
						// TODO: Add error handling and display here
						updatePostResults( jetpackCarouselStrings.comment_post_error, false );
					}
				};

				var params = [];
				for ( var item in ajaxData ) {
					if ( item ) {
						// Encode each form element into a URI-compatible string.
						var encoded = encodeURIComponent( item ) + '=' + encodeURIComponent( ajaxData[ item ] );
						// In x-www-form-urlencoded, spaces should be `+`, not `%20`.
						params.push( encoded.replace( /%20/g, '+' ) );
					}
				}
				var encodedData = params.join( '&' );

				xhr.send( encodedData );
			}
		}

		/**
		 * Handles clicks to icons and other action elements in the icon container.
		 * @param {MouseEvent|TouchEvent|KeyBoardEvent} Event object.
		 */
		function handleFooterElementClick( e ) {
			e.preventDefault();

			var target = e.target;
			var extraInfoContainer = carousel.info.querySelector( '.jp-carousel-info-extra' );
			var photoMetaContainer = carousel.info.querySelector( '.jp-carousel-image-meta' );
			var commentsContainer = carousel.info.querySelector( '.jp-carousel-comments-wrapper' );
			var infoIcon = carousel.info.querySelector( '.jp-carousel-icon-info' );
			var commentsIcon = carousel.info.querySelector( '.jp-carousel-icon-comments' );

			function handleInfoToggle() {
				if ( commentsIcon ) {
					commentsIcon.classList.remove( 'jp-carousel-selected' );
				}
				infoIcon.classList.toggle( 'jp-carousel-selected' );

				if ( commentsContainer ) {
					commentsContainer.classList.remove( 'jp-carousel-show' );
				}
				if ( photoMetaContainer ) {
					photoMetaContainer.classList.toggle( 'jp-carousel-show' );
					if ( photoMetaContainer.classList.contains( 'jp-carousel-show' ) ) {
						extraInfoContainer.classList.add( 'jp-carousel-show' );
					} else {
						extraInfoContainer.classList.remove( 'jp-carousel-show' );
					}
				}
			}

			function handleCommentToggle() {
				if ( infoIcon ) {
					infoIcon.classList.remove( 'jp-carousel-selected' );
				}
				commentsIcon.classList.toggle( 'jp-carousel-selected' );

				if ( photoMetaContainer ) {
					photoMetaContainer.classList.remove( 'jp-carousel-show' );
				}
				if ( commentsContainer ) {
					commentsContainer.classList.toggle( 'jp-carousel-show' );
					if ( commentsContainer.classList.contains( 'jp-carousel-show' ) ) {
						extraInfoContainer.classList.add( 'jp-carousel-show' );
					} else {
						extraInfoContainer.classList.remove( 'jp-carousel-show' );
					}
				}
			}

			if (
				domUtil.closest( target, '.jp-carousel-icon-info' ) ||
				target.classList.contains( 'jp-carousel-photo-title' )
			) {
				if ( photoMetaContainer && photoMetaContainer.classList.contains( 'jp-carousel-show' ) ) {
					domUtil.scrollToElement( carousel.overlay, carousel.overlay, handleInfoToggle );
				} else {
					handleInfoToggle();
					domUtil.scrollToElement( carousel.info, carousel.overlay );
				}
			}

			if ( domUtil.closest( target, '.jp-carousel-icon-comments' ) ) {
				if ( commentsContainer && commentsContainer.classList.contains( 'jp-carousel-show' ) ) {
					domUtil.scrollToElement( carousel.overlay, carousel.overlay, handleCommentToggle );
				} else {
					handleCommentToggle();
					domUtil.scrollToElement( carousel.info, carousel.overlay );
				}
			}
		}

		function processSingleImageGallery() {
			var images = document.querySelectorAll( 'a img[data-attachment-id]' );
			Array.prototype.forEach.call( images, function ( image ) {
				var link = image.parentElement;
				var container = link.parentElement;

				// Skip if image was already added to gallery by shortcode.
				if ( container.classList.contains( 'gallery-icon' ) ) {
					return;
				}

				// Skip if image is part of a gallery.
				if ( domUtil.closest( container, galleryItemSelector ) ) {
					return;
				}

				// Skip if the parent is not actually a link.
				if ( ! link.hasAttribute( 'href' ) ) {
					return;
				}

				var valid = false;

				// If link points to 'Media File' (ignoring GET parameters) and flag is set, allow it.
				if (
					link.getAttribute( 'href' ).split( '?' )[ 0 ] ===
						image.getAttribute( 'data-orig-file' ).split( '?' )[ 0 ] &&
					Number( jetpackCarouselStrings.single_image_gallery_media_file ) === 1
				) {
					valid = true;
				}

				// If link points to 'Attachment Page', allow it.
				if ( link.getAttribute( 'href' ) === image.getAttribute( 'data-permalink' ) ) {
					valid = true;
				}

				// Links to 'Custom URL' or 'Media File' when flag is not set are not valid.
				if ( ! valid ) {
					return;
				}

				// Make this node a gallery recognizable by event listener above.
				link.classList.add( 'single-image-gallery' );
				// blog_id is needed to allow posting comments to correct blog.
				link.setAttribute(
					'data-carousel-extra',
					JSON.stringify( {
						blog_id: Number( jetpackCarouselStrings.blog_id ),
					} )
				);
			} );
		}

		function testForData( el ) {
			return !! ( el && el.getAttribute( 'data-carousel-extra' ) );
		}

		function openOrSelectSlide( gal, index ) {
			if ( ! carousel.isOpen ) {
				// The `open` method selects the correct slide during the initialization.
				loadSwiper( gal, { startIndex: index } );
			} else {
				selectSlideAtIndex( index );
				// We have to force swiper to slide to the index onHasChange.
				swiper.slideTo( index + 1 );
			}
		}

		function selectSlideAtIndex( index ) {
			if ( ! index || index < 0 || index > carousel.slides.length ) {
				index = 0;
			}
			carousel.currentSlide = carousel.slides[ index ];

			var current = carousel.currentSlide;
			var attachmentId = current.attrs.attachmentId;
			var infoIcon = carousel.info.querySelector( '.jp-carousel-icon-info' );
			var commentsIcon = carousel.info.querySelector( '.jp-carousel-icon-comments' );

			// If the comment/info section is toggled open, it's kept open, but scroll to top of the next slide.
			if (
				( infoIcon && infoIcon.classList.contains( 'jp-carousel-selected' ) ) ||
				( commentsIcon && commentsIcon.classList.contains( 'jp-carousel-selected' ) )
			) {
				if ( carousel.overlay.scrollTop !== 0 ) {
					domUtil.scrollToElement( carousel.overlay, carousel.overlay );
				}
			}

			loadFullImage( carousel.slides[ index ] );

			if (
				Number( jetpackCarouselStrings.display_background_image ) === 1 &&
				! carousel.slides[ index ].backgroundImage
			) {
				loadBackgroundImage( carousel.slides[ index ] );
			}

			domUtil.hide( carousel.caption );
			updateTitleCaptionAndDesc( {
				caption: current.attrs.caption,
				title: current.attrs.title,
				desc: current.attrs.desc,
			} );

			var imageMeta = carousel.slides[ index ].attrs.imageMeta;
			updateExif( imageMeta );
			updateFullSizeLink( current );

			if ( Number( jetpackCarouselStrings.display_comments ) === 1 ) {
				testCommentsOpened( carousel.slides[ index ].attrs.commentsOpened );
				fetchComments( attachmentId );
				domUtil.hide( carousel.info.querySelector( '#jp-carousel-comment-post-results' ) );
			}

			// Update pagination in footer.
			var pagination = carousel.info.querySelector( '.jp-carousel-pagination' );
			if ( pagination && carousel.slides.length > 5 ) {
				var currentPage = index + 1;
				pagination.innerHTML = '<span>' + currentPage + ' / ' + carousel.slides.length + '</span>';
			}

			// Record pageview in WP Stats, for each new image loaded full-screen.
			if ( jetpackCarouselStrings.stats ) {
				new Image().src =
					document.location.protocol +
					'https://pixel.wp.com/g.gif?' +
					jetpackCarouselStrings.stats +
					'&post=' +
					encodeURIComponent( attachmentId ) +
					'&rand=' +
					Math.random();
			}

			pageview( attachmentId );

			window.location.hash = lastKnownLocationHash = '#jp-carousel-' + attachmentId;
		}

		function restoreScroll() {
			window.scrollTo( window.scrollX || window.pageXOffset || 0, scrollPos || 0 );
		}

		function closeCarousel() {
			// Make sure to let the page scroll again.
			document.body.style.overflow = originalOverflow;
			document.documentElement.style.overflow = originalHOverflow;
			clearCommentTextAreaValue();

			disableKeyboardNavigation();

			domUtil.emitEvent( carousel.overlay, 'jp_carousel.beforeClose' );
			restoreScroll();
			swiper.destroy();
			carousel.isOpen = false;
			// Clear slide data for DOM garbage collection.
			carousel.slides = [];
			carousel.currentSlide = undefined;
			carousel.gallery.innerHTML = '';

			domUtil.fadeOut( carousel.overlay, function () {
				domUtil.emitEvent( carousel.overlay, 'jp_carousel.afterClose' );
			} );
		}

		function calculateMaxSlideDimensions() {
			return {
				width: window.innerWidth,
				height: window.innerHeight - 64, //subtract height of bottom info bar,
			};
		}

		function selectBestImageUrl( args ) {
			if ( typeof args !== 'object' ) {
				args = {};
			}

			if ( typeof args.origFile === 'undefined' ) {
				return '';
			}

			if ( typeof args.origWidth === 'undefined' || typeof args.maxWidth === 'undefined' ) {
				return args.origFile;
			}

			if ( typeof args.mediumFile === 'undefined' || typeof args.largeFile === 'undefined' ) {
				return args.origFile;
			}

			// Check if the image is being served by Photon (using a regular expression on the hostname).

			var imageLinkParser = document.createElement( 'a' );
			imageLinkParser.href = args.largeFile;

			var isPhotonUrl = /^i[0-2]\.wp\.com$/i.test( imageLinkParser.hostname );

			var mediumSizeParts = getImageSizeParts( args.mediumFile, args.origWidth, isPhotonUrl );
			var largeSizeParts = getImageSizeParts( args.largeFile, args.origWidth, isPhotonUrl );

			var largeWidth = parseInt( largeSizeParts[ 0 ], 10 );
			var largeHeight = parseInt( largeSizeParts[ 1 ], 10 );
			var mediumWidth = parseInt( mediumSizeParts[ 0 ], 10 );
			var mediumHeight = parseInt( mediumSizeParts[ 1 ], 10 );

			args.origMaxWidth = args.maxWidth;
			args.origMaxHeight = args.maxHeight;

			// Give devices with a higher devicePixelRatio higher-res images (Retina display = 2, Android phones = 1.5, etc)
			if ( typeof window.devicePixelRatio !== 'undefined' && window.devicePixelRatio > 1 ) {
				args.maxWidth = args.maxWidth * window.devicePixelRatio;
				args.maxHeight = args.maxHeight * window.devicePixelRatio;
			}

			if ( largeWidth >= args.maxWidth || largeHeight >= args.maxHeight ) {
				return args.largeFile;
			}

			if ( mediumWidth >= args.maxWidth || mediumHeight >= args.maxHeight ) {
				return args.mediumFile;
			}

			if ( isPhotonUrl ) {
				// args.origFile doesn't point to a Photon url, so in this case we use args.largeFile
				// to return the photon url of the original image.
				var largeFileIndex = args.largeFile.lastIndexOf( '?' );
				var origPhotonUrl = args.largeFile;
				if ( largeFileIndex !== -1 ) {
					origPhotonUrl = args.largeFile.substring( 0, largeFileIndex );
					// If we have a really large image load a smaller version
					// that is closer to the viewable size
					if ( args.origWidth > args.maxWidth || args.origHeight > args.maxHeight ) {
						// @2x the max sizes so we get a high enough resolution for zooming.
						args.origMaxWidth = args.maxWidth * 2;
						args.origMaxHeight = args.maxHeight * 2;
						origPhotonUrl += '?fit=' + args.origMaxWidth + '%2C' + args.origMaxHeight;
					}
				}
				return origPhotonUrl;
			}

			return args.origFile;
		}

		function getImageSizeParts( file, origWidth, isPhotonUrl ) {
			var size = isPhotonUrl
				? file.replace( /.*=([\d]+%2C[\d]+).*$/, '$1' )
				: file.replace( /.*-([\d]+x[\d]+)\..+$/, '$1' );

			var sizeParts =
				size !== file
					? isPhotonUrl
						? size.split( '%2C' )
						: size.split( 'x' )
					: [ origWidth, 0 ];

			// If one of the dimensions is set to 9999, then the actual value of that dimension can't be retrieved from the url.
			// In that case, we set the value to 0.
			if ( sizeParts[ 0 ] === '9999' ) {
				sizeParts[ 0 ] = '0';
			}

			if ( sizeParts[ 1 ] === '9999' ) {
				sizeParts[ 1 ] = '0';
			}

			return sizeParts;
		}

		/**
		 * Returns a number in a fraction format that represents the shutter speed.
		 * @param Number speed
		 * @return String
		 */
		function formatShutterSpeed( speed ) {
			var denominator;

			// round to one decimal if value > 1s by multiplying it by 10, rounding, then dividing by 10 again
			if ( speed >= 1 ) {
				return Math.round( speed * 10 ) / 10 + 's';
			}

			// If the speed is less than one, we find the denominator by inverting
			// the number. Since cameras usually use rational numbers as shutter
			// speeds, we should get a nice round number. Or close to one in cases
			// like 1/30. So we round it.
			denominator = Math.round( 1 / speed );

			return '1/' + denominator + 's';
		}

		function parseTitleOrDesc( value ) {
			if ( ! value.match( ' ' ) && value.match( '_' ) ) {
				return '';
			}

			return value;
		}

		function updateTitleCaptionAndDesc( data ) {
			var caption = '';
			var title = '';
			var desc = '';
			var captionMainElement;
			var captionInfoExtraElement;
			var titleElement;
			var descriptionElement;

			captionMainElement = carousel.overlay.querySelector( '.jp-carousel-photo-caption' );
			captionInfoExtraElement = carousel.overlay.querySelector( '.jp-carousel-caption' );

			titleElement = carousel.overlay.querySelector( '.jp-carousel-photo-title' );
			descriptionElement = carousel.overlay.querySelector( '.jp-carousel-photo-description' );

			domUtil.hide( captionMainElement );
			domUtil.hide( captionInfoExtraElement );
			domUtil.hide( titleElement );
			domUtil.hide( descriptionElement );

			caption = parseTitleOrDesc( data.caption ) || '';
			title = parseTitleOrDesc( data.title ) || '';
			desc = parseTitleOrDesc( data.desc ) || '';

			if ( caption || title || desc ) {
				if ( caption ) {
					captionMainElement.innerHTML = caption;
					captionInfoExtraElement.innerHTML = caption;

					domUtil.show( captionMainElement );
					domUtil.show( captionInfoExtraElement );
				}

				if ( domUtil.stripHTML( caption ) === domUtil.stripHTML( title ) ) {
					title = '';
				}

				if ( domUtil.stripHTML( caption ) === domUtil.stripHTML( desc ) ) {
					desc = '';
				}

				if ( domUtil.stripHTML( title ) === domUtil.stripHTML( desc ) ) {
					desc = '';
				}

				if ( desc ) {
					descriptionElement.innerHTML = desc;
					domUtil.show( descriptionElement );

					if ( ! title && ! caption ) {
						captionMainElement.innerHTML = domUtil.stripHTML( desc );
						domUtil.show( captionMainElement );
					}
				}

				if ( title ) {
					var plainTitle = domUtil.stripHTML( title );
					titleElement.innerHTML = plainTitle;

					if ( ! caption ) {
						captionMainElement.innerHTML = plainTitle;
						captionInfoExtraElement.innerHTML = plainTitle;

						domUtil.show( captionMainElement );
					}

					domUtil.show( titleElement );
				}
			}
		}

		// updateExif updates the contents of the exif UL (.jp-carousel-image-exif)
		function updateExif( meta ) {
			if ( ! meta || Number( jetpackCarouselStrings.display_exif ) !== 1 ) {
				return false;
			}

			var ul = carousel.info.querySelector( '.jp-carousel-image-meta ul.jp-carousel-image-exif' );
			var html = '';

			for ( var key in meta ) {
				var val = meta[ key ];
				var metaKeys = jetpackCarouselStrings.meta_data || [];

				if ( parseFloat( val ) === 0 || ! val.length || metaKeys.indexOf( key ) === -1 ) {
					continue;
				}

				switch ( key ) {
					case 'focal_length':
						val = val + 'mm';
						break;
					case 'shutter_speed':
						val = formatShutterSpeed( val );
						break;
					case 'aperture':
						val = 'f/' + val;
						break;
				}

				html += '<li><h5>' + jetpackCarouselStrings[ key ] + '</h5>' + val + '</li>';
			}

			ul.innerHTML = html;
			ul.style.removeProperty( 'display' );
		}

		// Update the contents of the jp-carousel-image-download link
		function updateFullSizeLink( currentSlide ) {
			if ( ! currentSlide ) {
				return false;
			}
			var original;
			var origSize = [ currentSlide.attrs.origWidth, currentSlide.attrs.origHeight ];
			var imageLinkParser = document.createElement( 'a' );

			imageLinkParser.href = currentSlide.attrs.src.replace( /\?.+$/, '' );

			// Is this a Photon URL?
			if ( imageLinkParser.hostname.match( /^i[\d]{1}\.wp\.com$/i ) !== null ) {
				original = imageLinkParser.href;
			} else {
				original = currentSlide.attrs.origFile.replace( /\?.+$/, '' );
			}

			var downloadText = carousel.info.querySelector( '.jp-carousel-download-text' );
			var permalink = carousel.info.querySelector( '.jp-carousel-image-download' );

			downloadText.innerHTML = util.applyReplacements(
				jetpackCarouselStrings.download_original,
				origSize
			);
			permalink.setAttribute( 'href', original );
			permalink.style.removeProperty( 'display' );
		}

		function testCommentsOpened( opened ) {
			var commentForm = carousel.container.querySelector( '.jp-carousel-comment-form-container' );
			var isOpened = parseInt( opened, 10 ) === 1;

			if ( isOpened ) {
				domUtil.fadeIn( commentForm );
			} else {
				domUtil.fadeOut( commentForm );
			}
		}

		function fetchComments( attachmentId, offset ) {
			var shouldClear = offset === undefined;
			var commentsIndicator = carousel.info.querySelector(
				'.jp-carousel-icon-comments .jp-carousel-has-comments-indicator'
			);

			commentsIndicator.classList.remove( 'jp-carousel-show' );

			clearInterval( commentInterval );

			if ( ! attachmentId ) {
				return;
			}

			if ( ! offset || offset < 1 ) {
				offset = 0;
			}

			var comments = carousel.info.querySelector( '.jp-carousel-comments' );
			var commentsLoading = carousel.info.querySelector( '#jp-carousel-comments-loading' );
			domUtil.show( commentsLoading );

			if ( shouldClear ) {
				domUtil.hide( comments );
				comments.innerHTML = '';
			}

			var xhr = new XMLHttpRequest();
			var url =
				jetpackCarouselStrings.ajaxurl +
				'?action=get_attachment_comments' +
				'&nonce=' +
				jetpackCarouselStrings.nonce +
				'&id=' +
				attachmentId +
				'&offset=' +
				offset;
			xhr.open( 'GET', url );
			xhr.setRequestHeader( 'X-Requested-With', 'XMLHttpRequest' );

			var onError = function () {
				domUtil.fadeIn( comments );
				domUtil.fadeOut( commentsLoading );
			};

			xhr.onload = function () {
				// Ignore the results if they arrive late and we're now on a different slide.
				if (
					! carousel.currentSlide ||
					carousel.currentSlide.attrs.attachmentId !== attachmentId
				) {
					return;
				}

				var isSuccess = xhr.status >= 200 && xhr.status < 300;
				var data;
				try {
					data = JSON.parse( xhr.responseText );
				} catch ( e ) {
					// Do nothing.
				}

				if ( ! isSuccess || ! data || ! Array.isArray( data ) ) {
					return onError();
				}

				if ( shouldClear ) {
					comments.innerHTML = '';
				}

				for ( var i = 0; i < data.length; i++ ) {
					var entry = data[ i ];
					var comment = document.createElement( 'div' );
					comment.classList.add( 'jp-carousel-comment' );
					comment.setAttribute( 'id', 'jp-carousel-comment-' + entry.id );
					comment.innerHTML =
						'<div class="comment-gravatar">' +
						entry.gravatar_markup +
						'</div>' +
						'<div class="comment-content">' +
						'<div class="comment-author">' +
						entry.author_markup +
						'</div>' +
						'<div class="comment-date">' +
						entry.date_gmt +
						'</div>' +
						entry.content +
						'</div>';
					comments.appendChild( comment );

					// Set the interval to check for a new page of comments.
					clearInterval( commentInterval );
					commentInterval = setInterval( function () {
						if ( carousel.container.scrollTop + 150 > window.innerHeight ) {
							fetchComments( attachmentId, offset + 10 );
							clearInterval( commentInterval );
						}
					}, 300 );
				}

				if ( data.length > 0 ) {
					domUtil.show( comments );
					commentsIndicator.innerText = data.length;
					commentsIndicator.classList.add( 'jp-carousel-show' );
				}

				domUtil.hide( commentsLoading );
			};

			xhr.onerror = onError;

			xhr.send();
		}

		function loadFullImage( slide ) {
			var el = slide.el;
			var attrs = slide.attrs;
			var image = el.querySelector( 'img' );

			if ( ! image.hasAttribute( 'data-loaded' ) ) {
				var hasPreview = !! attrs.previewImage;
				var thumbSize = attrs.thumbSize;

				if ( ! hasPreview || ( thumbSize && el.offsetWidth > thumbSize.width ) ) {
					image.src = attrs.src;
				} else {
					image.src = attrs.previewImage;
				}

				image.setAttribute( 'itemprop', 'image' );
				image.setAttribute( 'data-loaded', 1 );
			}
		}

		function loadBackgroundImage( slide ) {
			var currentSlide = slide.el;

			if ( swiper && swiper.slides ) {
				currentSlide = swiper.slides[ swiper.activeIndex ];
			}

			var image = slide.attrs.originalElement;
			var isLoaded = image.complete && image.naturalHeight !== 0;

			if ( isLoaded ) {
				applyBackgroundImage( slide, currentSlide, image );
				return;
			}

			image.onload = function () {
				applyBackgroundImage( slide, currentSlide, image );
			};
		}

		function applyBackgroundImage( slide, currentSlide, image ) {
			var url = util.getBackgroundImage( image );
			slide.backgroundImage = url;
			currentSlide.style.backgroundImage = 'url(' + url + ')';
			currentSlide.style.backgroundSize = 'cover';
		}

		function clearCommentTextAreaValue() {
			if ( carousel.commentField ) {
				carousel.commentField.value = '';
			}
		}

		function getOriginalDimensions( el ) {
			var size = el.getAttribute( 'data-orig-size' ) || '';

			if ( size ) {
				var parts = size.split( ',' );
				return { width: parseInt( parts[ 0 ], 10 ), height: parseInt( parts[ 1 ], 10 ) };
			} else {
				return {
					width:
						el.getAttribute( 'data-original-width' ) || el.getAttribute( 'width' ) || undefined,
					height:
						el.getAttribute( 'data-original-height' ) || el.getAttribute( 'height' ) || undefined,
				};
			}
		}

		function initCarouselSlides( items, startIndex ) {
			carousel.slides = [];

			var max = calculateMaxSlideDimensions();

			// If the startIndex is not 0 then preload the clicked image first.
			if ( startIndex !== 0 ) {
				var img = new Image();
				img.src = items[ startIndex ].getAttribute( 'data-gallery-src' );
			}

			var useInPageThumbnails = !! domUtil.closest( items[ 0 ], '.tiled-gallery.type-rectangular' );

			// create the 'slide'
			Array.prototype.forEach.call( items, function ( item, i ) {
				var permalinkEl = domUtil.closest( item, 'a' );
				var origFile = item.getAttribute( 'data-orig-file' ) || item.getAttribute( 'src-orig' );
				var attrID =
					item.getAttribute( 'data-attachment-id' ) || item.getAttribute( 'data-id' ) || '0';
				var caption = document.querySelector(
					'img[data-attachment-id="' + attrID + '"] + figcaption'
				);

				if ( caption ) {
					caption = caption.innerHTML;
				} else {
					caption = item.getAttribute( 'data-image-caption' );
				}

				var attrs = {
					originalElement: item,
					attachmentId: attrID,
					commentsOpened: item.getAttribute( 'data-comments-opened' ) || '0',
					imageMeta: domUtil.getJSONAttribute( item, 'data-image-meta' ) || {},
					title: item.getAttribute( 'data-image-title' ) || '',
					desc: item.getAttribute( 'data-image-description' ) || '',
					mediumFile: item.getAttribute( 'data-medium-file' ) || '',
					largeFile: item.getAttribute( 'data-large-file' ) || '',
					origFile: origFile || '',
					thumbSize: { width: item.naturalWidth, height: item.naturalHeight },
					caption: caption || '',
					permalink: permalinkEl && permalinkEl.getAttribute( 'href' ),
					src: origFile || item.getAttribute( 'src' ) || '',
				};

				var tiledGalleryItem = domUtil.closest( item, '.tiled-gallery-item' );
				var tiledCaptionEl =
					tiledGalleryItem && tiledGalleryItem.querySelector( '.tiled-gallery-caption' );
				var tiledCaption = tiledCaptionEl && tiledCaptionEl.innerHTML;
				if ( tiledCaption ) {
					attrs.caption = tiledCaption;
				}

				var origDimensions = getOriginalDimensions( item );

				attrs.origWidth = origDimensions.width || attrs.thumbSize.width;
				attrs.origHeight = origDimensions.height || attrs.thumbSize.height;

				if ( typeof wpcom !== 'undefined' && wpcom.carousel && wpcom.carousel.generateImgSrc ) {
					attrs.src = wpcom.carousel.generateImgSrc( item, max );
				} else {
					attrs.src = selectBestImageUrl( {
						origFile: attrs.src,
						origWidth: attrs.origWidth,
						origHeight: attrs.origHeight,
						maxWidth: max.width,
						maxHeight: max.height,
						mediumFile: attrs.mediumFile,
						largeFile: attrs.largeFile,
					} );
				}

				// Set the final src.
				item.setAttribute( 'data-gallery-src', attrs.src );

				if ( attrs.attachmentId !== '0' ) {
					attrs.title = util.texturize( attrs.title );
					attrs.desc = util.texturize( attrs.desc );
					attrs.caption = util.texturize( attrs.caption );

					// Initially, the image is a 1x1 transparent gif.
					// The preview is shown as a background image on the slide itself.
					var image = new Image();
					image.src = attrs.src;

					var slideEl = document.createElement( 'div' );
					slideEl.classList.add( 'swiper-slide' );
					slideEl.setAttribute( 'itemprop', 'associatedMedia' );
					slideEl.setAttribute( 'itemscope', '' );
					slideEl.setAttribute( 'itemtype', 'https://schema.org/ImageObject' );
					var zoomEl = document.createElement( 'div' );
					zoomEl.classList.add( 'swiper-zoom-container' );

					carousel.gallery.appendChild( slideEl );

					slideEl.appendChild( zoomEl );
					zoomEl.appendChild( image );
					slideEl.setAttribute( 'data-attachment-id', attrs.attachmentId );
					slideEl.setAttribute( 'data-permalink', attrs.permalink );
					slideEl.setAttribute( 'data-orig-file', attrs.origFile );

					if ( useInPageThumbnails ) {
						// Use the image already loaded in the gallery as a preview.
						attrs.previewImage = attrs.src;
					}

					var slide = { el: slideEl, attrs: attrs, index: i };
					carousel.slides.push( slide );
				}
			} );
		}

		function loadSwiper( gallery, options ) {
			if ( ! window.Swiper670 ) {
				var loader = document.querySelector( '#jp-carousel-loading-overlay' );
				domUtil.show( loader );
				var jsScript = document.createElement( 'script' );
				jsScript.id = 'jetpack-carousel-swiper-js';
				jsScript.src = window.jetpackSwiperLibraryPath.url;
				jsScript.async = true;
				jsScript.onload = function () {
					domUtil.hide( loader );
					openCarousel( gallery, options );
				};
				jsScript.onerror = function () {
					domUtil.hide( loader );
				};
				document.head.appendChild( jsScript );
				return;
			}
			openCarousel( gallery, options );
		}

		function openCarousel( gallery, options ) {
			var settings = {
				imgSelector:
					'.gallery-item [data-attachment-id], .tiled-gallery-item [data-attachment-id], img[data-attachment-id], img[data-id]',
				startIndex: 0,
			};

			var data = domUtil.getJSONAttribute( gallery, 'data-carousel-extra' );
			var tapTimeout;

			if ( ! data ) {
				return; // don't run if the default gallery functions weren't used
			}

			initializeCarousel();

			if ( carousel.isOpen ) {
				return; // don't open if already opened
			}
			carousel.isOpen = true;

			// make sure to stop the page from scrolling behind the carousel overlay, so we don't trigger
			// infiniscroll for it when enabled (Reader, theme infiniscroll, etc).
			originalOverflow = getComputedStyle( document.body ).overflow;
			document.body.style.overflow = 'hidden';
			// prevent html from overflowing on some of the new themes.
			originalHOverflow = getComputedStyle( document.documentElement ).overflow;
			document.documentElement.style.overflow = 'hidden';
			scrollPos = window.scrollY || window.pageYOffset || 0;

			carousel.container.setAttribute( 'data-carousel-extra', JSON.stringify( data ) );
			stat( [ 'open', 'view_image' ] );

			// If options exist, lets merge them
			// with our default settings
			for ( var option in options || {} ) {
				settings[ option ] = options[ option ];
			}

			if ( settings.startIndex === -1 ) {
				settings.startIndex = 0; // -1 returned if can't find index, so start from beginning
			}

			domUtil.emitEvent( carousel.overlay, 'jp_carousel.beforeOpen' );
			carousel.gallery.innerHTML = '';

			// Need to set the overlay manually to block or swiper does't initialise properly.
			carousel.overlay.style.opacity = 1;
			carousel.overlay.style.display = 'block';

			initCarouselSlides( gallery.querySelectorAll( settings.imgSelector ), settings.startIndex );

			swiper = new window.Swiper670( '.jp-carousel-swiper-container', {
				centeredSlides: true,
				zoom: true,
				loop: carousel.slides.length > 1,
				// Turn off interactions and hide navigation arrows if there is only one slide.
				enabled: carousel.slides.length > 1,
				pagination: {
					el: '.jp-swiper-pagination',
					clickable: true,
				},
				navigation: {
					nextEl: '.jp-swiper-button-next',
					prevEl: '.jp-swiper-button-prev',
				},
				initialSlide: settings.startIndex,
				on: {
					init: function () {
						selectSlideAtIndex( settings.startIndex );
					},
				},
				preventClicks: false,
				preventClicksPropagation: false,
				preventInteractionOnTransition: ! domUtil.isTouch(),
				threshold: 5,
			} );

			swiper.on( 'slideChange', function ( swiper ) {
				var index;
				// Swiper indexes slides from 1, plus when looping to left last slide ends up
				// as 0 and looping to right first slide as total slides + 1. These are adjusted
				// here to match index of carousel.slides.
				if ( swiper.activeIndex === 0 ) {
					index = carousel.slides.length - 1;
				} else if ( swiper.activeIndex === carousel.slides.length + 1 ) {
					index = 0;
				} else {
					index = swiper.activeIndex - 1;
				}
				selectSlideAtIndex( index );

				carousel.overlay.classList.remove( 'jp-carousel-hide-controls' );
			} );

			swiper.on( 'zoomChange', function ( swiper, scale ) {
				if ( scale > 1 ) {
					carousel.overlay.classList.add( 'jp-carousel-hide-controls' );
				}

				if ( scale === 1 ) {
					carousel.overlay.classList.remove( 'jp-carousel-hide-controls' );
				}
			} );

			swiper.on( 'doubleTap', function ( swiper ) {
				clearTimeout( tapTimeout );
				if ( swiper.zoom.scale === 1 ) {
					var zoomTimeout = setTimeout( function () {
						carousel.overlay.classList.remove( 'jp-carousel-hide-controls' );
						clearTimeout( zoomTimeout );
					}, 150 );
				}
			} );

			swiper.on( 'tap', function () {
				if ( swiper.zoom.scale > 1 ) {
					tapTimeout = setTimeout( function () {
						carousel.overlay.classList.toggle( 'jp-carousel-hide-controls' );
					}, 150 );
				}
			} );

			domUtil.fadeIn( carousel.overlay, function () {
				domUtil.emitEvent( carousel.overlay, 'jp_carousel.afterOpen' );
			} );
		}

		// Register the event listener for starting the gallery
		document.body.addEventListener( 'click', function ( e ) {
			var isCompatible =
				window.CSS && window.CSS.supports && window.CSS.supports( 'display', 'grid' );

			// IE11 support is being dropped in August 2021. The new swiper.js libray is not IE11 compat
			// so just default to opening individual image attachment/media pages for IE.
			if ( ! isCompatible ) {
				return;
			}

			var target = e.target;
			var gallery = domUtil.closest( target, gallerySelector );

			if ( gallery ) {
				if ( ! testForData( gallery ) ) {
					return;
				}

				var parent = target.parentElement;
				var grandparent = parent.parentElement;

				// If Gallery is made up of individual Image blocks check for custom link before
				// loading carousel.
				if ( grandparent && grandparent.classList.contains( 'wp-block-image' ) ) {
					var parentHref = parent.getAttribute( 'href' );

					// If the link does not point to the attachment or media file then assume Image has
					// a custom link so don't load the carousel.
					if (
						parentHref.split( '?' )[ 0 ] !==
							target.getAttribute( 'data-orig-file' ).split( '?' )[ 0 ] &&
						parentHref !== target.getAttribute( 'data-permalink' )
					) {
						return;
					}
				}

				// Do not open the modal if we are looking at a gallery caption from before WP5, which may contain a link.
				if ( parent.classList.contains( 'gallery-caption' ) ) {
					return;
				}

				// Do not open the modal if we are looking at a caption of a gallery block, which may contain a link.
				if ( domUtil.matches( parent, 'figcaption' ) ) {
					return;
				}

				// Set height to auto.
				// Fix some themes where closing carousel brings view back to top.
				document.documentElement.style.height = 'auto';

				e.preventDefault();

				// Stopping propagation in case there are parent elements
				// with .gallery or .tiled-gallery class
				e.stopPropagation();

				var item = domUtil.closest( target, itemSelector );
				var index = Array.prototype.indexOf.call( gallery.querySelectorAll( itemSelector ), item );
				loadSwiper( gallery, { startIndex: index } );
			}
		} );

		// Handle lightbox (single image gallery) for images linking to 'Attachment Page'.
		if ( Number( jetpackCarouselStrings.single_image_gallery ) === 1 ) {
			processSingleImageGallery();
			document.body.addEventListener( 'is.post-load', function () {
				processSingleImageGallery();
			} );
		}

		// Makes carousel work on page load and when back button leads to same URL with carousel hash
		// (i.e. no actual document.ready trigger).
		window.addEventListener( 'hashchange', function () {
			var hashRegExp = /jp-carousel-(\d+)/;

			if ( ! window.location.hash || ! hashRegExp.test( window.location.hash ) ) {
				if ( carousel.isOpen ) {
					closeCarousel();
				}

				return;
			}

			if ( window.location.hash === lastKnownLocationHash && carousel.isOpen ) {
				return;
			}

			if ( window.location.hash && carousel.gallery && ! carousel.isOpen && history.back ) {
				history.back();
				return;
			}

			lastKnownLocationHash = window.location.hash;
			var matchList = window.location.hash.match( hashRegExp );
			var attachmentId = parseInt( matchList[ 1 ], 10 );
			var galleries = document.querySelectorAll( gallerySelector );

			// Find the first thumbnail that matches the attachment ID in the location
			// hash, then open the gallery that contains it.
			for ( var i = 0; i < galleries.length; i++ ) {
				var gallery = galleries[ i ];
				var selected;

				var images = gallery.querySelectorAll( 'img' );
				for ( var j = 0; j < images.length; j++ ) {
					if (
						parseInt( images[ j ].getAttribute( 'data-attachment-id' ), 10 ) === attachmentId ||
						parseInt( images[ j ].getAttribute( 'data-id' ), 10 ) === attachmentId
					) {
						selected = j;
						break;
					}
				}

				if ( selected !== undefined ) {
					openOrSelectSlide( gallery, selected );
					break;
				}
			}
		} );

		if ( window.location.hash ) {
			domUtil.emitEvent( window, 'hashchange' );
		}
	}

	if ( document.readyState !== 'loading' ) {
		init();
	} else {
		document.addEventListener( 'DOMContentLoaded', init );
	}
} )();
;
( function () {
	function TiledGalleryCollection() {
		this.galleries = [];
		this.findAndSetupNewGalleries();
	}

	TiledGalleryCollection.prototype.findAndSetupNewGalleries = function () {
		var self = this;
		var unresizedGalleries = document.querySelectorAll( '.tiled-gallery.tiled-gallery-unresized' );

		Array.prototype.forEach.call( unresizedGalleries, function ( el ) {
			self.galleries.push( new TiledGallery( el ) );
		} );
	};

	TiledGalleryCollection.prototype.resizeAll = function () {
		Array.prototype.forEach.call( this.galleries, function ( gallery ) {
			gallery.resize();
		} );
	};

	function TiledGallery( galleryElem ) {
		this.gallery = galleryElem;

		this.addCaptionEvents();

		// Resize when initialized to fit the gallery to window dimensions
		this.resize();

		// Displays the gallery and prevents it from being initialized again
		this.gallery.classList.remove( 'tiled-gallery-unresized' );
	}

	/**
	 * Selector for all resizeable elements inside a Tiled Gallery
	 */

	TiledGallery.prototype.resizeableElementsSelector =
		'.gallery-row, .gallery-group, .tiled-gallery-item img';

	/**
	 * Story
	 */

	TiledGallery.prototype.addCaptionEvents = function () {
		// Hide captions
		var galleryCaptions = this.gallery.querySelectorAll( '.tiled-gallery-caption' );
		Array.prototype.forEach.call( galleryCaptions, function ( el ) {
			el.style.display = 'none';
		} );

		var mouseHoverHandler = function ( e ) {
			var itemEl = e.target.closest( '.tiled-gallery-item' );
			var displayValue = 'mouseover' === e.type ? 'block' : 'none';

			if ( itemEl ) {
				var itemCaption = itemEl.querySelector( '.tiled-gallery-caption' );
				if ( itemCaption ) {
					itemCaption.style.display = displayValue;
				}
			}
		};

		// Add hover effects to bring the caption up and down for each item
		this.gallery.addEventListener( 'mouseover', mouseHoverHandler );
		this.gallery.addEventListener( 'mouseout', mouseHoverHandler );
	};

	TiledGallery.prototype.getExtraDimension = function ( el, attribute, mode ) {
		if ( mode === 'horizontal' ) {
			var left = attribute === 'border' ? 'borderLeftWidth' : attribute + 'Left';
			var right = attribute === 'border' ? 'borderRightWidth' : attribute + 'Right';
			return ( parseInt( el.style[ left ], 10 ) || 0 ) + ( parseInt( el.style[ right ], 10 ) || 0 );
		} else if ( mode === 'vertical' ) {
			var top = attribute === 'border' ? 'borderTopWidth' : attribute + 'Top';
			var bottom = attribute === 'border' ? 'borderBottomWidth' : attribute + 'Bottom';
			return ( parseInt( el.style[ top ], 10 ) || 0 ) + ( parseInt( el.style[ bottom ], 10 ) || 0 );
		} else {
			return 0;
		}
	};

	TiledGallery.prototype.resize = function () {
		// Resize everything in the gallery based on the ratio of the current content width
		// to the original content width;
		var originalWidth = parseInt( this.gallery.dataset.originalWidth, 10 );
		var currentWidth = parseFloat(
			getComputedStyle( this.gallery.parentNode, null ).width.replace( 'px', '' )
		);
		var resizeRatio = Math.min( 1, currentWidth / originalWidth );

		var self = this;
		var resizableElements = this.gallery.querySelectorAll( this.resizeableElementsSelector );
		Array.prototype.forEach.call( resizableElements, function ( el ) {
			var marginWidth = self.getExtraDimension( el, 'margin', 'horizontal' );
			var marginHeight = self.getExtraDimension( el, 'margin', 'vertical' );

			var paddingWidth = self.getExtraDimension( el, 'padding', 'horizontal' );
			var paddingHeight = self.getExtraDimension( el, 'padding', 'vertical' );

			var borderWidth = self.getExtraDimension( el, 'border', 'horizontal' );
			var borderHeight = self.getExtraDimension( el, 'border', 'vertical' );

			// Take all outer dimensions into account when resizing so that images
			// scale with constant empty space between them
			var outerWidth =
				parseInt( el.dataset.originalWidth, 10 ) + paddingWidth + borderWidth + marginWidth;
			var outerHeight =
				parseInt( el.dataset.originalHeight, 10 ) + paddingHeight + borderHeight + marginHeight;

			// Subtract margins so that images don't overflow on small browser windows
			el.style.width = Math.floor( resizeRatio * outerWidth ) - marginWidth + 'px';
			el.style.height = Math.floor( resizeRatio * outerHeight ) - marginHeight + 'px';
		} );
	};

	/**
	 * Resizing logic
	 */

	var requestAnimationFrame =
		window.requestAnimationFrame ||
		window.mozRequestAnimationFrame ||
		window.webkitRequestAnimationFrame ||
		window.msRequestAnimationFrame;

	function attachResizeInAnimationFrames( tiledGalleries ) {
		var resizing = false;
		var resizeTimeout = null;

		function handleFrame() {
			tiledGalleries.resizeAll();
			if ( resizing ) {
				requestAnimationFrame( handleFrame );
			}
		}

		window.addEventListener( 'resize', function () {
			clearTimeout( resizeTimeout );

			if ( ! resizing ) {
				requestAnimationFrame( handleFrame );
			}
			resizing = true;
			resizeTimeout = setTimeout( function () {
				resizing = false;
			}, 15 );
		} );
	}

	function attachPlainResize( tiledGalleries ) {
		window.addEventListener( 'resize', function () {
			tiledGalleries.resizeAll();
		} );
	}

	/**
	 * Ready, set...
	 */
	function ready( fn ) {
		if ( document.readyState !== 'loading' ) {
			fn();
		} else {
			document.addEventListener( 'DOMContentLoaded', fn );
		}
	}
	ready( function () {
		var tiledGalleries = new TiledGalleryCollection();

		document.body.addEventListener( 'is.post-load', function () {
			tiledGalleries.findAndSetupNewGalleries();
		} );

		if ( typeof jQuery === 'function' ) {
			jQuery( document ).on( 'page-rendered.wpcom-newdash', function () {
				tiledGalleries.findAndSetupNewGalleries();
			} );
		}

		// Chrome is a unique snow flake and will start lagging on occasion
		// It helps if we only resize on animation frames
		//
		// For other browsers it seems like there is no lag even if we resize every
		// time there is an event
		if ( window.chrome && requestAnimationFrame ) {
			attachResizeInAnimationFrames( tiledGalleries );
		} else {
			attachPlainResize( tiledGalleries );
		}

		if ( 'undefined' !== typeof wp && wp.customize && wp.customize.selectiveRefresh ) {
			wp.customize.selectiveRefresh.bind( 'partial-content-rendered', function ( placement ) {
				if ( wp.isJetpackWidgetPlaced( placement, 'gallery' ) ) {
					tiledGalleries.findAndSetupNewGalleries();
				}
			} );
		}
	} );
} )();
;
( function () {
	'use strict';

	if ( typeof window.wpcom === 'undefined' ) {
		window.wpcom = {};
	}

	if ( window.wpcom.carousel ) {
		return;
	}

	var prebuilt_widths = jetpackCarouselStrings.widths;
	var pageviews_stats_args = jetpackCarouselStrings.stats_query_args;

	var findFirstLargeEnoughWidth = function ( original_w, original_h, dest_w, dest_h ) {
		var inverse_ratio = original_h / original_w;

		for ( var i = 0; i < prebuilt_widths.length; ++i ) {
			if ( prebuilt_widths[ i ] >= dest_w || prebuilt_widths[ i ] * inverse_ratio >= dest_h ) {
				return prebuilt_widths[ i ];
			}
		}

		return original_w;
	};

	var removeResizeFromImageURL = function ( url ) {
		return removeArgFromURL( url, 'resize' );
	};

	var removeArgFromURL = function ( url, arg ) {
		var re = new RegExp( '[\\?&]' + arg + '(=[^?&]+)?' );
		if ( url.match( re ) ) {
			return url.replace( re, '' );
		}
		return url;
	};

	var addWidthToImageURL = function ( url, width ) {
		width = parseInt( width, 10 );
		// Give devices with a higher devicePixelRatio higher-res images (Retina display = 2, Android phones = 1.5, etc)
		if ( 'undefined' !== typeof window.devicePixelRatio && window.devicePixelRatio > 1 ) {
			width = Math.round( width * window.devicePixelRatio );
		}
		url = addArgToURL( url, 'w', width );
		url = addArgToURL( url, 'h', '' );
		return url;
	};

	var addArgToURL = function ( url, arg, value ) {
		var re = new RegExp( arg + '=[^?&]+' );
		if ( url.match( re ) ) {
			return url.replace( re, arg + '=' + value );
		} else {
			var divider = url.indexOf( '?' ) !== -1 ? '&' : '?';
			return url + divider + arg + '=' + value;
		}
	};

	var stat = function ( names ) {
		if ( typeof names !== 'string' ) {
			names = names.join( ',' );
		}

		new Image().src = window.location.protocol +
			'https://pixel.wp.com/g.gif?v=wpcom-no-pv' +
			'&x_carousel=' + names +
			'&baba=' + Math.random();
	};

	var pageview = function ( post_id ) {
		new Image().src = window.location.protocol +
			'https://pixel.wp.com/g.gif?host=' + encodeURIComponent( window.location.host ) +
			'&ref=' + encodeURIComponent( document.referrer ) +
			'&rand=' + Math.random() +
			'&' + pageviews_stats_args +
			'&post=' + encodeURIComponent( post_id );
	};

	var generateImgSrc = function ( srcItem, max ) {
		var origSize = srcItem.getAttribute( 'data-orig-size' ) || '';

		var src = srcItem.getAttribute( 'src' ) || srcItem.getAttribute( 'original' ) || srcItem.getAttribute( 'data-original' ) || srcItem.getAttribute( 'data-lazy-src' );
		if ( src.indexOf( 'imgpress' ) !== -1 ) {
			src = srcItem.getAttribute( 'data-orig-file' );
		}
		// Square/Circle galleries use a resize param that needs to be removed.
		src = removeResizeFromImageURL( src );
		src = addWidthToImageURL(
			src,
			findFirstLargeEnoughWidth( origSize.width, origSize.height, max.width, max.height )
		);

		return src;
	};

	window.wpcom.carousel = {
		findFirstLargeEnoughWidth: findFirstLargeEnoughWidth,
		removeResizeFromImageURL: removeResizeFromImageURL,
		addWidthToImageURL: addWidthToImageURL,
		stat: stat,
		pageview: pageview,
		generateImgSrc: generateImgSrc
	};

} )();
;