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*****************************************\r\n// ************* Image Gallery *************\r\n// *****************************************\r\n\r\nimport PhotoSwipe from 'photoswipe';\r\nimport 'photoswipe/style.css';\r\nimport './thumbnail-gallery.scss';\r\n\r\nclass ProductGallery {\r\n\r\n    constructor(el) {\r\n        this.el = el;\r\n        this.collectionsItem = el.classList.contains('collections-thumbnail-gallery');\r\n        this.imageSizesOkay = true;\r\n        this.lightbox = null;\r\n        this.activeIndex = 0;\r\n        this.main = el.querySelector('.thumbnail-gallery--main-image');\r\n        this.mainImg = el.querySelector('.thumbnail-gallery--main-image figure img');\r\n        this.mainImgFigCaption = el.querySelector('.thumbnail-gallery--main-image figure figcaption');\r\n        this.items = [];\r\n        let findItems = el.querySelectorAll('ul li a');\r\n        this.loop = findItems.length > 1;\r\n        if(findItems != null) {\r\n            [...findItems].forEach((itemElement, itemIndex) => {\r\n                let dataWidth = itemElement.dataset.pswpWidth,\r\n                    dataHeight = itemElement.dataset.pswpHeight;\r\n                this.items[itemIndex] = {\r\n                    el: itemElement,\r\n                    src: itemElement.getAttribute('href'),\r\n                    width: parseFloat(dataWidth) > 0 ? parseFloat(dataWidth) : 0,\r\n                    height: parseFloat(dataHeight) > 0 ? parseFloat(dataHeight) : 0,\r\n                    img: itemElement.querySelector('img'),\r\n                    alt: itemElement.querySelector('figcaption').innerText,\r\n                    figCaptionHTML: itemElement.querySelector('figcaption').innerHTML,\r\n                };\r\n                this.imageSizesOkay = this.items[itemIndex].width > 0 && this.items[itemIndex].height > 0;\r\n            });\r\n        }\r\n        // open gallery with 'main' button\r\n        this.main.onclick = (e) => {\r\n            e.stopPropagation();\r\n            e.preventDefault();\r\n            if(!this.imageSizesOkay) {\r\n                this.getImageDimensions(this.activeIndex);\r\n            } else {\r\n                this.createLightbox(this.activeIndex);\r\n            }\r\n        };\r\n        // thumbnail links load image into 'main' area and change the activeIndex\r\n        for(var x=0; x < this.items.length; x++) {\r\n            let index = x,\r\n                _this = this;\r\n            this.items[x].el.onclick = (e) => {\r\n                e.stopPropagation();\r\n                e.preventDefault();\r\n                _this.setActiveThumbnail(index);\r\n            };\r\n        }\r\n        this.items[this.activeIndex].el.classList.add('active');\r\n    }\r\n\r\n    getImageDimensions(priorityIndex) {\r\n        // priority index\r\n        if(this.items[priorityIndex].width == 0 || this.items[priorityIndex].height == 0) {\r\n            let index = priorityIndex;\r\n            this.items[priorityIndex].image = new Image();\r\n            this.items[priorityIndex].image.onload = () => {\r\n                this.imageLoaded(priorityIndex, true);\r\n            }\r\n            this.items[priorityIndex].image.src = this.items[priorityIndex].src;\r\n        } else {\r\n            this.createLightbox(priorityIndex);\r\n        }\r\n        // other images\r\n        for(var x=0; x < this.items.length; x++) {\r\n            if( x !== priorityIndex) {\r\n                if(this.items[x].width == 0 || this.items[x].height == 0) {\r\n                    let index = x;\r\n                    this.items[x].image = new Image();\r\n                    this.items[x].image.onload = () => {\r\n                        this.imageLoaded(index, false);\r\n                    }\r\n                    this.items[x].image.src = this.items[x].src;\r\n                }\r\n            }\r\n        };\r\n    }\r\n\r\n    imageLoaded(i, create) {\r\n        let w = this.items[i].image.width,\r\n            h = this.items[i].image.height;\r\n        this.items[i].width = w;\r\n        this.items[i].height = h;\r\n        if(create) {\r\n            this.createLightbox();\r\n        } else {\r\n            this.lightbox.options.dataSource[i].width = w;\r\n            this.lightbox.options.dataSource[i].height = h;\r\n            this.lightbox.refreshSlideContent(i);\r\n        }\r\n    }\r\n\r\n    createLightbox() {\r\n        this.lightbox = new PhotoSwipe({\r\n            dataSource: this.items,\r\n            loop: this.loop,\r\n            index: this.activeIndex\r\n        });\r\n        // update thumbnails on slide change\r\n        this.lightbox.on('change', () => {\r\n            // triggers when slide is switched, and at initialization\r\n            this.setActiveThumbnail(this.lightbox.currSlide.index);\r\n        });\r\n        // init\r\n        this.lightbox.init();\r\n    }\r\n\r\n    setActiveThumbnail(index) {\r\n        this.items[this.activeIndex].el.classList.remove('active');\r\n        this.items[index].el.classList.add('active');\r\n        if(this.collectionsItem) {\r\n            this.mainImg.removeAttribute('srcset');\r\n            this.mainImg.setAttribute('src', this.items[index].src);\r\n        } else {\r\n            this.mainImg.setAttribute('src', this.items[index].img.dataset.src);\r\n            this.mainImg.setAttribute('srcset', this.items[index].img.dataset.srcset);\r\n        }\r\n        this.mainImg.setAttribute('alt', this.items[index].alt);\r\n        this.mainImgFigCaption.innerHTML = this.items[index].figCaptionHTML;\r\n        this.activeIndex = index;\r\n    }\r\n\r\n}\r\n\r\n// export the default function to create\r\nexport function createFrom(wrappers) {\r\n    wrappers.forEach((node) => {\r\n        // if node is an element\r\n        if (node.nodeType === 1) {\r\n            new ProductGallery(node);\r\n        }\r\n    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