These JavaScript codes are open source and part of many applications, such as NextGen Gallery. Their contents are pasted here for ease of reading and referencing.
// simple_lightbox.js
/*!
By André Rinas, www.andrerinas.de
Documentation, www.simplelightbox.de
Available for use under the MIT License
Version 2.1.5
*/
"use strict";
function _createForOfIteratorHelper(o) { if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (o = _unsupportedIterableToArray(o))) { var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var it, normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(n); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
var SimpleLightbox = /*#__PURE__*/function () {
function SimpleLightbox(elements, options) {
var _this = this;
_classCallCheck(this, SimpleLightbox);
_defineProperty(this, "defaultOptions", {
sourceAttr: 'href',
overlay: true,
spinner: true,
nav: true,
navText: ['‹', '›'],
captions: true,
captionDelay: 0,
captionSelector: 'img',
captionType: 'attr',
captionsData: 'title',
captionPosition: 'bottom',
captionClass: '',
close: true,
closeText: '×',
swipeClose: true,
showCounter: true,
fileExt: 'png|jpg|jpeg|gif|webp',
animationSlide: true,
animationSpeed: 250,
preloading: true,
enableKeyboard: true,
loop: true,
rel: false,
docClose: true,
swipeTolerance: 50,
className: 'simple-lightbox',
widthRatio: 0.8,
heightRatio: 0.9,
scaleImageToRatio: false,
disableRightClick: false,
disableScroll: true,
alertError: true,
alertErrorMessage: 'Image not found, next image will be loaded',
additionalHtml: false,
history: true,
throttleInterval: 0,
doubleTapZoom: 2,
maxZoom: 10,
htmlClass: 'has-lightbox',
rtl: false
});
_defineProperty(this, "transitionPrefix", void 0);
_defineProperty(this, "transitionCapable", false);
_defineProperty(this, "isTouchDevice", 'ontouchstart' in window);
_defineProperty(this, "initialLocationHash", void 0);
_defineProperty(this, "pushStateSupport", 'pushState' in history);
_defineProperty(this, "isOpen", false);
_defineProperty(this, "isAnimating", false);
_defineProperty(this, "isClosing", false);
_defineProperty(this, "urlChangedOnce", false);
_defineProperty(this, "hashReseted", false);
_defineProperty(this, "historyHasChanges", false);
_defineProperty(this, "historyUpdateTimeout", null);
_defineProperty(this, "currentImage", void 0);
_defineProperty(this, "eventNamespace", 'simplelightbox');
_defineProperty(this, "domNodes", {});
_defineProperty(this, "loadedImages", []);
_defineProperty(this, "initialImageIndex", 0);
_defineProperty(this, "currentImageIndex", 0);
_defineProperty(this, "initialSelector", null);
_defineProperty(this, "globalScrollbarWidth", 0);
_defineProperty(this, "controlCoordinates", {
swipeDiff: 0,
swipeYDiff: 0,
swipeStart: 0,
swipeEnd: 0,
swipeYStart: 0,
swipeYEnd: 0,
mousedown: false,
imageLeft: 0,
zoomed: false,
containerHeight: 0,
containerWidth: 0,
containerOffsetX: 0,
containerOffsetY: 0,
imgHeight: 0,
imgWidth: 0,
capture: false,
initialOffsetX: 0,
initialOffsetY: 0,
initialPointerOffsetX: 0,
initialPointerOffsetY: 0,
initialPointerOffsetX2: 0,
initialPointerOffsetY2: 0,
initialScale: 1,
initialPinchDistance: 0,
pointerOffsetX: 0,
pointerOffsetY: 0,
pointerOffsetX2: 0,
pointerOffsetY2: 0,
targetOffsetX: 0,
targetOffsetY: 0,
targetScale: 0,
pinchOffsetX: 0,
pinchOffsetY: 0,
limitOffsetX: 0,
limitOffsetY: 0,
scaleDifference: 0,
targetPinchDistance: 0,
touchCount: 0,
doubleTapped: false,
touchmoveCount: 0
});
this.options = Object.assign(this.defaultOptions, options);
if (typeof elements === 'string') {
this.initialSelector = elements;
this.elements = Array.from(document.querySelectorAll(elements));
} else {
this.elements = typeof elements.length !== 'undefined' && elements.length > 0 ? Array.from(elements) : [elements];
}
this.relatedElements = [];
this.transitionPrefix = this.calculateTransitionPrefix();
this.transitionCapable = this.transitionPrefix !== false;
this.initialLocationHash = this.hash; // this should be handled by attribute selector IMHO! => 'a[rel=bla]'...
if (this.options.rel) {
this.elements = this.getRelated(this.options.rel);
}
this.createDomNodes();
if (this.options.close) {
this.domNodes.wrapper.appendChild(this.domNodes.closeButton);
}
if (this.options.nav) {
this.domNodes.wrapper.appendChild(this.domNodes.navigation);
}
if (this.options.spinner) {
this.domNodes.wrapper.appendChild(this.domNodes.spinner);
}
this.addEventListener(this.elements, 'click.' + this.eventNamespace, function (event) {
if (_this.isValidLink(event.currentTarget)) {
event.preventDefault();
if (_this.isAnimating) {
return false;
}
_this.initialImageIndex = _this.elements.indexOf(event.currentTarget);
_this.openImage(event.currentTarget);
}
}); // close addEventListener click addEventListener doc
if (this.options.docClose) {
this.addEventListener(this.domNodes.overlay, ['click.' + this.eventNamespace, 'touchstart.' + this.eventNamespace], function (event) {
if (_this.isOpen) {
_this.close();
}
});
} // disable rightclick
if (this.options.disableRightClick) {
this.addEventListener(document.body, 'contextmenu.' + this.eventNamespace, function (event) {
if (event.target.classList.contains('sl-overlay')) {
event.preventDefault();
}
});
} // keyboard-control
if (this.options.enableKeyboard) {
this.addEventListener(document.body, 'keyup.' + this.eventNamespace, this.throttle(function (event) {
_this.controlCoordinates.swipeDiff = 0; // keyboard control only if lightbox is open
if (_this.isAnimating && event.key === 'Escape') {
_this.currentImage.setAttribute('src', '');
_this.isAnimating = false;
return _this.close();
}
if (_this.isOpen) {
event.preventDefault();
if (event.key === 'Escape') {
_this.close();
}
if (!_this.isAnimating && ['ArrowLeft', 'ArrowRight'].indexOf(event.key) > -1) {
_this.loadImage(event.key === 'ArrowRight' ? 1 : -1);
}
}
}, this.options.throttleInterval));
}
this.addEvents();
}
_createClass(SimpleLightbox, [{
key: "createDomNodes",
value: function createDomNodes() {
this.domNodes.overlay = document.createElement('div');
this.domNodes.overlay.classList.add('sl-overlay');
this.domNodes.overlay.dataset.opacityTarget = ".7";
this.domNodes.closeButton = document.createElement('button');
this.domNodes.closeButton.classList.add('sl-close');
this.domNodes.closeButton.innerHTML = this.options.closeText;
this.domNodes.spinner = document.createElement('div');
this.domNodes.spinner.classList.add('sl-spinner');
this.domNodes.spinner.innerHTML = '<div></div>';
this.domNodes.navigation = document.createElement('div');
this.domNodes.navigation.classList.add('sl-navigation');
this.domNodes.navigation.innerHTML = "<button class=\"sl-prev\">".concat(this.options.navText[0], "</button><button class=\"sl-next\">").concat(this.options.navText[1], "</button>");
this.domNodes.counter = document.createElement('div');
this.domNodes.counter.classList.add('sl-counter');
this.domNodes.counter.innerHTML = '<span class="sl-current"></span>/<span class="sl-total"></span>';
this.domNodes.caption = document.createElement('div');
this.domNodes.caption.classList.add('sl-caption', 'pos-' + this.options.captionPosition);
if (this.options.captionClass) {
this.domNodes.caption.classList.add(this.options.captionClass);
}
this.domNodes.image = document.createElement('div');
this.domNodes.image.classList.add('sl-image');
this.domNodes.wrapper = document.createElement('div');
this.domNodes.wrapper.classList.add('sl-wrapper');
if (this.options.className) {
this.domNodes.wrapper.classList.add(this.options.className);
}
if (this.options.rtl) {
this.domNodes.wrapper.classList.add('sl-dir-rtl');
}
}
}, {
key: "throttle",
value: function throttle(func, limit) {
var inThrottle;
return function () {
if (!inThrottle) {
func.apply(this, arguments);
inThrottle = true;
setTimeout(function () {
return inThrottle = false;
}, limit);
}
};
}
}, {
key: "isValidLink",
value: function isValidLink(element) {
return !this.options.fileExt || 'pathname' in element && new RegExp('(' + this.options.fileExt + ')$', 'i').test(element.pathname);
}
}, {
key: "calculateTransitionPrefix",
value: function calculateTransitionPrefix() {
var s = (document.body || document.documentElement).style;
return 'transition' in s ? '' : 'WebkitTransition' in s ? '-webkit-' : 'MozTransition' in s ? '-moz-' : 'OTransition' in s ? '-o' : false;
}
}, {
key: "toggleScrollbar",
value: function toggleScrollbar(type) {
var scrollbarWidth = 0;
if (type === 'hide') {
var fullWindowWidth = window.innerWidth;
if (!fullWindowWidth) {
var documentElementRect = document.documentElement.getBoundingClientRect();
fullWindowWidth = documentElementRect.right - Math.abs(documentElementRect.left);
}
if (document.body.clientWidth < fullWindowWidth) {
var scrollDiv = document.createElement('div'),
paddingRight = parseInt(document.body.style.paddingRight || 0, 10);
scrollDiv.classList.add('sl-scrollbar-measure');
document.body.appendChild(scrollDiv);
scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth;
document.body.removeChild(scrollDiv);
document.body.dataset.originalPaddingRight = paddingRight;
if (scrollbarWidth > 0) {
document.body.classList.add('hidden-scroll');
document.body.style.paddingRight = paddingRight + scrollbarWidth + 'px';
}
}
} else {
document.body.classList.remove('hidden-scroll');
document.body.style.paddingRight = document.body.dataset.originalPaddingRight;
}
return scrollbarWidth;
}
}, {
key: "close",
value: function close() {
var _this2 = this;
if (!this.isOpen || this.isAnimating || this.isClosing) {
return false;
}
this.isClosing = true;
var element = this.relatedElements[this.currentImageIndex];
element.dispatchEvent(new Event('close.simplelightbox'));
if (this.options.history) {
this.historyHasChanges = false;
if (!this.hashReseted) {
this.resetHash();
}
}
this.fadeOut(document.querySelectorAll('.sl-image img, .sl-overlay, .sl-close, .sl-navigation, .sl-image .sl-caption, .sl-counter'), 300, function () {
if (_this2.options.disableScroll) {
_this2.toggleScrollbar('show');
}
if (_this2.options.htmlClass && _this2.options.htmlClass !== '') {
document.querySelector('html').classList.remove(_this2.options.htmlClass);
}
document.body.removeChild(_this2.domNodes.wrapper);
document.body.removeChild(_this2.domNodes.overlay);
_this2.domNodes.additionalHtml = null;
element.dispatchEvent(new Event('closed.simplelightbox'));
_this2.isClosing = false;
});
this.currentImage = null;
this.isOpen = false;
this.isAnimating = false; // reset touchcontrol coordinates
for (var key in this.controlCoordinates) {
this.controlCoordinates[key] = 0;
}
this.controlCoordinates.mousedown = false;
this.controlCoordinates.zoomed = false;
this.controlCoordinates.capture = false;
this.controlCoordinates.initialScale = this.minMax(1, 1, this.options.maxZoom);
this.controlCoordinates.doubleTapped = false;
}
}, {
key: "preload",
value: function preload() {
var _this3 = this;
var index = this.currentImageIndex,
length = this.relatedElements.length,
next = index + 1 < 0 ? length - 1 : index + 1 >= length - 1 ? 0 : index + 1,
prev = index - 1 < 0 ? length - 1 : index - 1 >= length - 1 ? 0 : index - 1,
nextImage = new Image(),
prevImage = new Image();
nextImage.addEventListener('load', function (event) {
var src = event.target.getAttribute('src');
if (_this3.loadedImages.indexOf(src) === -1) {
//is this condition even required... setting multiple times will not change usage...
_this3.loadedImages.push(src);
}
_this3.relatedElements[index].dispatchEvent(new Event('nextImageLoaded.' + _this3.eventNamespace));
});
nextImage.setAttribute('src', this.relatedElements[next].getAttribute(this.options.sourceAttr));
prevImage.addEventListener('load', function (event) {
var src = event.target.getAttribute('src');
if (_this3.loadedImages.indexOf(src) === -1) {
_this3.loadedImages.push(src);
}
_this3.relatedElements[index].dispatchEvent(new Event('prevImageLoaded.' + _this3.eventNamespace));
});
prevImage.setAttribute('src', this.relatedElements[prev].getAttribute(this.options.sourceAttr));
}
}, {
key: "loadImage",
value: function loadImage(direction) {
var _this4 = this;
var slideDirection = direction;
if (this.options.rtl) {
direction = -direction;
}
this.relatedElements[this.currentImageIndex].dispatchEvent(new Event('change.' + this.eventNamespace));
this.relatedElements[this.currentImageIndex].dispatchEvent(new Event((direction === 1 ? 'next' : 'prev') + '.' + this.eventNamespace));
var newIndex = this.currentImageIndex + direction;
if (this.isAnimating || (newIndex < 0 || newIndex >= this.relatedElements.length) && this.options.loop === false) {
return false;
}
this.currentImageIndex = newIndex < 0 ? this.relatedElements.length - 1 : newIndex > this.relatedElements.length - 1 ? 0 : newIndex;
this.domNodes.counter.querySelector('.sl-current').innerHTML = this.currentImageIndex + 1;
if (this.options.animationSlide) {
this.slide(this.options.animationSpeed / 1000, -100 * slideDirection - this.controlCoordinates.swipeDiff + 'px');
}
this.fadeOut(this.domNodes.image, 300, function () {
_this4.isAnimating = true;
setTimeout(function () {
var element = _this4.relatedElements[_this4.currentImageIndex];
_this4.currentImage.setAttribute('src', element.getAttribute(_this4.options.sourceAttr));
if (_this4.loadedImages.indexOf(element.getAttribute(_this4.options.sourceAttr)) === -1) {
_this4.show(_this4.domNodes.spinner);
}
if (_this4.domNodes.image.contains(_this4.domNodes.caption)) {
_this4.domNodes.image.removeChild(_this4.domNodes.caption);
}
_this4.adjustImage(slideDirection);
if (_this4.options.preloading) _this4.preload();
}, 100);
});
}
}, {
key: "adjustImage",
value: function adjustImage(direction) {
var _this5 = this;
if (!this.currentImage) {
return false;
}
var tmpImage = new Image(),
windowWidth = window.innerWidth * this.options.widthRatio,
windowHeight = window.innerHeight * this.options.heightRatio;
tmpImage.setAttribute('src', this.currentImage.getAttribute('src'));
this.currentImage.dataset.scale = 1;
this.currentImage.dataset.translateX = 0;
this.currentImage.dataset.translateY = 0;
this.zoomPanElement(0, 0, 1);
tmpImage.addEventListener('error', function (event) {
_this5.relatedElements[_this5.currentImageIndex].dispatchEvent(new Event('error.' + _this5.eventNamespace));
_this5.isAnimating = false;
_this5.isOpen = false;
_this5.domNodes.spinner.style.display = 'none';
var dirIsDefined = direction === 1 || direction === -1;
if (_this5.initialImageIndex === _this5.currentImageIndex && dirIsDefined) {
return _this5.close();
}
if (_this5.options.alertError) {
alert(_this5.options.alertErrorMessage);
}
_this5.loadImage(dirIsDefined ? direction : 1);
});
tmpImage.addEventListener('load', function (event) {
if (typeof direction !== 'undefined') {
_this5.relatedElements[_this5.currentImageIndex].dispatchEvent(new Event('changed.' + _this5.eventNamespace));
_this5.relatedElements[_this5.currentImageIndex].dispatchEvent(new Event((direction === 1 ? 'nextDone' : 'prevDone') + '.' + _this5.eventNamespace));
} // history
if (_this5.options.history) {
_this5.updateURL();
}
if (_this5.loadedImages.indexOf(_this5.currentImage.getAttribute('src')) === -1) {
_this5.loadedImages.push(_this5.currentImage.getAttribute('src'));
}
var imageWidth = event.target.width,
imageHeight = event.target.height;
if (_this5.options.scaleImageToRatio || imageWidth > windowWidth || imageHeight > windowHeight) {
var ratio = imageWidth / imageHeight > windowWidth / windowHeight ? imageWidth / windowWidth : imageHeight / windowHeight;
imageWidth /= ratio;
imageHeight /= ratio;
}
_this5.domNodes.image.style.top = (window.innerHeight - imageHeight) / 2 + 'px';
_this5.domNodes.image.style.left = (window.innerWidth - imageWidth - _this5.globalScrollbarWidth) / 2 + 'px';
_this5.domNodes.image.style.width = imageWidth + 'px';
_this5.domNodes.image.style.height = imageHeight + 'px';
_this5.domNodes.spinner.style.display = 'none';
_this5.fadeIn(_this5.currentImage, 300);
_this5.isOpen = true;
var captionContainer = _this5.options.captionSelector === 'self' ? _this5.relatedElements[_this5.currentImageIndex] : _this5.relatedElements[_this5.currentImageIndex].querySelector(_this5.options.captionSelector),
captionText;
if (_this5.options.captions && captionContainer) {
if (_this5.options.captionType === 'data') {
captionText = captionContainer.dataset[_this5.options.captionsData];
} else if (_this5.options.captionType === 'text') {
captionText = captionContainer.innerHTML;
} else {
captionText = captionContainer.getAttribute(_this5.options.captionsData);
}
}
if (!_this5.options.loop) {
if (_this5.currentImageIndex === 0) {
_this5.hide(_this5.domNodes.navigation.querySelector('.sl-prev'));
}
if (_this5.currentImageIndex >= _this5.relatedElements.length - 1) {
_this5.hide(_this5.domNodes.navigation.querySelector('.sl-next'));
}
if (_this5.currentImageIndex > 0) {
_this5.show(_this5.domNodes.navigation.querySelector('.sl-prev'));
}
if (_this5.currentImageIndex < _this5.relatedElements.length - 1) {
_this5.show(_this5.domNodes.navigation.querySelector('.sl-next'));
}
}
if (_this5.relatedElements.length === 1) {
_this5.hide(_this5.domNodes.navigation.querySelectorAll('.sl-prev, .sl-next'));
} else {
_this5.show(_this5.domNodes.navigation.querySelectorAll('.sl-prev, .sl-next'));
}
if (direction === 1 || direction === -1) {
if (_this5.options.animationSlide) {
_this5.slide(0, 100 * direction + 'px');
setTimeout(function () {
_this5.slide(_this5.options.animationSpeed / 1000, 0 + 'px');
}, 50);
}
_this5.fadeIn(_this5.domNodes.image, 300, function () {
_this5.isAnimating = false;
_this5.setCaption(captionText, imageWidth);
});
} else {
_this5.isAnimating = false;
_this5.setCaption(captionText, imageWidth);
}
if (_this5.options.additionalHtml && !_this5.domNodes.additionalHtml) {
_this5.domNodes.additionalHtml = document.createElement('div');
_this5.domNodes.additionalHtml.classList.add('sl-additional-html');
_this5.domNodes.additionalHtml.innerHTML = _this5.options.additionalHtml;
_this5.domNodes.image.appendChild(_this5.domNodes.additionalHtml);
}
});
}
}, {
key: "zoomPanElement",
value: function zoomPanElement(targetOffsetX, targetOffsetY, targetScale) {
this.currentImage.style[this.transitionPrefix + 'transform'] = 'translate(' + targetOffsetX + ',' + targetOffsetY + ') scale(' + targetScale + ')';
}
}, {
key: "minMax",
value: function minMax(value, min, max) {
return value < min ? min : value > max ? max : value;
}
}, {
key: "setZoomData",
value: function setZoomData(initialScale, targetOffsetX, targetOffsetY) {
this.currentImage.dataset.scale = initialScale;
this.currentImage.dataset.translateX = targetOffsetX;
this.currentImage.dataset.translateY = targetOffsetY;
}
}, {
key: "hashchangeHandler",
value: function hashchangeHandler() {
if (this.isOpen && this.hash === this.initialLocationHash) {
this.hashReseted = true;
this.close();
}
}
}, {
key: "addEvents",
value: function addEvents() {
var _this6 = this;
// resize/responsive
this.addEventListener(window, 'resize.' + this.eventNamespace, function (event) {
//this.adjustImage.bind(this)
if (_this6.isOpen) {
_this6.adjustImage();
}
});
this.addEventListener(this.domNodes.closeButton, ['click.' + this.eventNamespace, 'touchstart.' + this.eventNamespace], this.close.bind(this));
if (this.options.history) {
setTimeout(function () {
_this6.addEventListener(window, 'hashchange.' + _this6.eventNamespace, function (event) {
if (_this6.isOpen) {
_this6.hashchangeHandler();
}
});
}, 40);
}
this.addEventListener(this.domNodes.navigation.getElementsByTagName('button'), 'click.' + this.eventNamespace, function (event) {
if (!event.currentTarget.tagName.match(/button/i)) {
return true;
}
event.preventDefault();
_this6.controlCoordinates.swipeDiff = 0;
_this6.loadImage(event.currentTarget.classList.contains('sl-next') ? 1 : -1);
});
this.addEventListener(this.domNodes.image, ['touchstart.' + this.eventNamespace, 'mousedown.' + this.eventNamespace], function (event) {
if (event.target.tagName === 'A' && event.type === 'touchstart') {
return true;
}
if (event.type === 'mousedown') {
_this6.controlCoordinates.initialPointerOffsetX = event.clientX;
_this6.controlCoordinates.initialPointerOffsetY = event.clientY;
_this6.controlCoordinates.containerHeight = _this6.getDimensions(_this6.domNodes.image).height;
_this6.controlCoordinates.containerWidth = _this6.getDimensions(_this6.domNodes.image).width;
_this6.controlCoordinates.imgHeight = _this6.getDimensions(_this6.currentImage).height;
_this6.controlCoordinates.imgWidth = _this6.getDimensions(_this6.currentImage).width;
_this6.controlCoordinates.containerOffsetX = _this6.domNodes.image.offsetLeft;
_this6.controlCoordinates.containerOffsetY = _this6.domNodes.image.offsetTop;
_this6.controlCoordinates.initialOffsetX = parseFloat(_this6.currentImage.dataset.translateX);
_this6.controlCoordinates.initialOffsetY = parseFloat(_this6.currentImage.dataset.translateY);
_this6.controlCoordinates.capture = true;
} else {
_this6.controlCoordinates.touchCount = event.touches.length;
_this6.controlCoordinates.initialPointerOffsetX = event.touches[0].clientX;
_this6.controlCoordinates.initialPointerOffsetY = event.touches[0].clientY;
_this6.controlCoordinates.containerHeight = _this6.getDimensions(_this6.domNodes.image).height;
_this6.controlCoordinates.containerWidth = _this6.getDimensions(_this6.domNodes.image).width;
_this6.controlCoordinates.imgHeight = _this6.getDimensions(_this6.currentImage).height;
_this6.controlCoordinates.imgWidth = _this6.getDimensions(_this6.currentImage).width;
_this6.controlCoordinates.containerOffsetX = _this6.domNodes.image.offsetLeft;
_this6.controlCoordinates.containerOffsetY = _this6.domNodes.image.offsetTop;
if (_this6.controlCoordinates.touchCount === 1)
/* Single touch */
{
if (!_this6.controlCoordinates.doubleTapped) {
_this6.controlCoordinates.doubleTapped = true;
setTimeout(function () {
_this6.controlCoordinates.doubleTapped = false;
}, 300);
} else {
_this6.currentImage.classList.add('sl-transition');
if (!_this6.controlCoordinates.zoomed) {
_this6.controlCoordinates.initialScale = _this6.options.doubleTapZoom;
_this6.setZoomData(_this6.controlCoordinates.initialScale, 0, 0);
_this6.zoomPanElement(0 + "px", 0 + "px", _this6.controlCoordinates.initialScale);
if (!_this6.domNodes.caption.style.opacity && _this6.domNodes.caption.style.display !== 'none') {
_this6.fadeOut(_this6.domNodes.caption, 200);
}
_this6.controlCoordinates.zoomed = true;
} else {
_this6.controlCoordinates.initialScale = 1;
_this6.setZoomData(_this6.controlCoordinates.initialScale, 0, 0);
_this6.zoomPanElement(0 + "px", 0 + "px", _this6.controlCoordinates.initialScale);
_this6.controlCoordinates.zoomed = false;
}
setTimeout(function () {
if (_this6.currentImage) {
_this6.currentImage.classList.remove('sl-transition');
}
}, 200);
return false;
}
_this6.controlCoordinates.initialOffsetX = parseFloat(_this6.currentImage.dataset.translateX);
_this6.controlCoordinates.initialOffsetY = parseFloat(_this6.currentImage.dataset.translateY);
} else if (_this6.controlCoordinates.touchCount === 2)
/* Pinch */
{
_this6.controlCoordinates.initialPointerOffsetX2 = event.touches[1].clientX;
_this6.controlCoordinates.initialPointerOffsetY2 = event.touches[1].clientY;
_this6.controlCoordinates.initialOffsetX = parseFloat(_this6.currentImage.dataset.translateX);
_this6.controlCoordinates.initialOffsetY = parseFloat(_this6.currentImage.dataset.translateY);
_this6.controlCoordinates.pinchOffsetX = (_this6.controlCoordinates.initialPointerOffsetX + _this6.controlCoordinates.initialPointerOffsetX2) / 2;
_this6.controlCoordinates.pinchOffsetY = (_this6.controlCoordinates.initialPointerOffsetY + _this6.controlCoordinates.initialPointerOffsetY2) / 2;
_this6.controlCoordinates.initialPinchDistance = Math.sqrt((_this6.controlCoordinates.initialPointerOffsetX - _this6.controlCoordinates.initialPointerOffsetX2) * (_this6.controlCoordinates.initialPointerOffsetX - _this6.controlCoordinates.initialPointerOffsetX2) + (_this6.controlCoordinates.initialPointerOffsetY - _this6.controlCoordinates.initialPointerOffsetY2) * (_this6.controlCoordinates.initialPointerOffsetY - _this6.controlCoordinates.initialPointerOffsetY2));
}
_this6.controlCoordinates.capture = true;
}
if (_this6.controlCoordinates.mousedown) return true;
if (_this6.transitionCapable) {
_this6.controlCoordinates.imageLeft = parseInt(_this6.domNodes.image.style.left, 10);
}
_this6.controlCoordinates.mousedown = true;
_this6.controlCoordinates.swipeDiff = 0;
_this6.controlCoordinates.swipeYDiff = 0;
_this6.controlCoordinates.swipeStart = event.pageX || event.touches[0].pageX;
_this6.controlCoordinates.swipeYStart = event.pageY || event.touches[0].pageY;
return false;
});
this.addEventListener(this.domNodes.image, ['touchmove.' + this.eventNamespace, 'mousemove.' + this.eventNamespace, 'MSPointerMove'], function (event) {
if (!_this6.controlCoordinates.mousedown) {
return true;
}
event.preventDefault();
if (event.type === 'touchmove') {
if (_this6.controlCoordinates.capture === false) {
return false;
}
_this6.controlCoordinates.pointerOffsetX = event.touches[0].clientX;
_this6.controlCoordinates.pointerOffsetY = event.touches[0].clientY;
_this6.controlCoordinates.touchCount = event.touches.length;
_this6.controlCoordinates.touchmoveCount++;
if (_this6.controlCoordinates.touchCount > 1)
/* Pinch */
{
_this6.controlCoordinates.pointerOffsetX2 = event.touches[1].clientX;
_this6.controlCoordinates.pointerOffsetY2 = event.touches[1].clientY;
_this6.controlCoordinates.targetPinchDistance = Math.sqrt((_this6.controlCoordinates.pointerOffsetX - _this6.controlCoordinates.pointerOffsetX2) * (_this6.controlCoordinates.pointerOffsetX - _this6.controlCoordinates.pointerOffsetX2) + (_this6.controlCoordinates.pointerOffsetY - _this6.controlCoordinates.pointerOffsetY2) * (_this6.controlCoordinates.pointerOffsetY - _this6.controlCoordinates.pointerOffsetY2));
if (_this6.controlCoordinates.initialPinchDistance === null) {
_this6.controlCoordinates.initialPinchDistance = _this6.controlCoordinates.targetPinchDistance;
}
if (Math.abs(_this6.controlCoordinates.initialPinchDistance - _this6.controlCoordinates.targetPinchDistance) >= 1) {
/* Initialize helpers */
_this6.controlCoordinates.targetScale = _this6.minMax(_this6.controlCoordinates.targetPinchDistance / _this6.controlCoordinates.initialPinchDistance * _this6.controlCoordinates.initialScale, 1, _this6.options.maxZoom);
_this6.controlCoordinates.limitOffsetX = (_this6.controlCoordinates.imgWidth * _this6.controlCoordinates.targetScale - _this6.controlCoordinates.containerWidth) / 2;
_this6.controlCoordinates.limitOffsetY = (_this6.controlCoordinates.imgHeight * _this6.controlCoordinates.targetScale - _this6.controlCoordinates.containerHeight) / 2;
_this6.controlCoordinates.scaleDifference = _this6.controlCoordinates.targetScale - _this6.controlCoordinates.initialScale;
_this6.controlCoordinates.targetOffsetX = _this6.controlCoordinates.imgWidth * _this6.controlCoordinates.targetScale <= _this6.controlCoordinates.containerWidth ? 0 : _this6.minMax(_this6.controlCoordinates.initialOffsetX - (_this6.controlCoordinates.pinchOffsetX - _this6.controlCoordinates.containerOffsetX - _this6.controlCoordinates.containerWidth / 2 - _this6.controlCoordinates.initialOffsetX) / (_this6.controlCoordinates.targetScale - _this6.controlCoordinates.scaleDifference) * _this6.controlCoordinates.scaleDifference, _this6.controlCoordinates.limitOffsetX * -1, _this6.controlCoordinates.limitOffsetX);
_this6.controlCoordinates.targetOffsetY = _this6.controlCoordinates.imgHeight * _this6.controlCoordinates.targetScale <= _this6.controlCoordinates.containerHeight ? 0 : _this6.minMax(_this6.controlCoordinates.initialOffsetY - (_this6.controlCoordinates.pinchOffsetY - _this6.controlCoordinates.containerOffsetY - _this6.controlCoordinates.containerHeight / 2 - _this6.controlCoordinates.initialOffsetY) / (_this6.controlCoordinates.targetScale - _this6.controlCoordinates.scaleDifference) * _this6.controlCoordinates.scaleDifference, _this6.controlCoordinates.limitOffsetY * -1, _this6.controlCoordinates.limitOffsetY);
_this6.zoomPanElement(_this6.controlCoordinates.targetOffsetX + "px", _this6.controlCoordinates.targetOffsetY + "px", _this6.controlCoordinates.targetScale);
if (_this6.controlCoordinates.targetScale > 1) {
_this6.controlCoordinates.zoomed = true;
if (!_this6.domNodes.caption.style.opacity && _this6.domNodes.caption.style.display !== 'none') {
_this6.fadeOut(_this6.domNodes.caption, 200);
}
}
_this6.controlCoordinates.initialPinchDistance = _this6.controlCoordinates.targetPinchDistance;
_this6.controlCoordinates.initialScale = _this6.controlCoordinates.targetScale;
_this6.controlCoordinates.initialOffsetX = _this6.controlCoordinates.targetOffsetX;
_this6.controlCoordinates.initialOffsetY = _this6.controlCoordinates.targetOffsetY;
}
} else {
_this6.controlCoordinates.targetScale = _this6.controlCoordinates.initialScale;
_this6.controlCoordinates.limitOffsetX = (_this6.controlCoordinates.imgWidth * _this6.controlCoordinates.targetScale - _this6.controlCoordinates.containerWidth) / 2;
_this6.controlCoordinates.limitOffsetY = (_this6.controlCoordinates.imgHeight * _this6.controlCoordinates.targetScale - _this6.controlCoordinates.containerHeight) / 2;
_this6.controlCoordinates.targetOffsetX = _this6.controlCoordinates.imgWidth * _this6.controlCoordinates.targetScale <= _this6.controlCoordinates.containerWidth ? 0 : _this6.minMax(_this6.controlCoordinates.pointerOffsetX - (_this6.controlCoordinates.initialPointerOffsetX - _this6.controlCoordinates.initialOffsetX), _this6.controlCoordinates.limitOffsetX * -1, _this6.controlCoordinates.limitOffsetX);
_this6.controlCoordinates.targetOffsetY = _this6.controlCoordinates.imgHeight * _this6.controlCoordinates.targetScale <= _this6.controlCoordinates.containerHeight ? 0 : _this6.minMax(_this6.controlCoordinates.pointerOffsetY - (_this6.controlCoordinates.initialPointerOffsetY - _this6.controlCoordinates.initialOffsetY), _this6.controlCoordinates.limitOffsetY * -1, _this6.controlCoordinates.limitOffsetY);
if (Math.abs(_this6.controlCoordinates.targetOffsetX) === Math.abs(_this6.controlCoordinates.limitOffsetX)) {
_this6.controlCoordinates.initialOffsetX = _this6.controlCoordinates.targetOffsetX;
_this6.controlCoordinates.initialPointerOffsetX = _this6.controlCoordinates.pointerOffsetX;
}
if (Math.abs(_this6.controlCoordinates.targetOffsetY) === Math.abs(_this6.controlCoordinates.limitOffsetY)) {
_this6.controlCoordinates.initialOffsetY = _this6.controlCoordinates.targetOffsetY;
_this6.controlCoordinates.initialPointerOffsetY = _this6.controlCoordinates.pointerOffsetY;
}
_this6.setZoomData(_this6.controlCoordinates.initialScale, _this6.controlCoordinates.targetOffsetX, _this6.controlCoordinates.targetOffsetY);
_this6.zoomPanElement(_this6.controlCoordinates.targetOffsetX + "px", _this6.controlCoordinates.targetOffsetY + "px", _this6.controlCoordinates.targetScale);
}
}
/* Mouse Move implementation */
if (event.type === 'mousemove' && _this6.controlCoordinates.mousedown) {
if (event.type == 'touchmove') return true;
if (_this6.controlCoordinates.capture === false) return false;
_this6.controlCoordinates.pointerOffsetX = event.clientX;
_this6.controlCoordinates.pointerOffsetY = event.clientY;
_this6.controlCoordinates.targetScale = _this6.controlCoordinates.initialScale;
_this6.controlCoordinates.limitOffsetX = (_this6.controlCoordinates.imgWidth * _this6.controlCoordinates.targetScale - _this6.controlCoordinates.containerWidth) / 2;
_this6.controlCoordinates.limitOffsetY = (_this6.controlCoordinates.imgHeight * _this6.controlCoordinates.targetScale - _this6.controlCoordinates.containerHeight) / 2;
_this6.controlCoordinates.targetOffsetX = _this6.controlCoordinates.imgWidth * _this6.controlCoordinates.targetScale <= _this6.controlCoordinates.containerWidth ? 0 : _this6.minMax(_this6.controlCoordinates.pointerOffsetX - (_this6.controlCoordinates.initialPointerOffsetX - _this6.controlCoordinates.initialOffsetX), _this6.controlCoordinates.limitOffsetX * -1, _this6.controlCoordinates.limitOffsetX);
_this6.controlCoordinates.targetOffsetY = _this6.controlCoordinates.imgHeight * _this6.controlCoordinates.targetScale <= _this6.controlCoordinates.containerHeight ? 0 : _this6.minMax(_this6.controlCoordinates.pointerOffsetY - (_this6.controlCoordinates.initialPointerOffsetY - _this6.controlCoordinates.initialOffsetY), _this6.controlCoordinates.limitOffsetY * -1, _this6.controlCoordinates.limitOffsetY);
if (Math.abs(_this6.controlCoordinates.targetOffsetX) === Math.abs(_this6.controlCoordinates.limitOffsetX)) {
_this6.controlCoordinates.initialOffsetX = _this6.controlCoordinates.targetOffsetX;
_this6.controlCoordinates.initialPointerOffsetX = _this6.controlCoordinates.pointerOffsetX;
}
if (Math.abs(_this6.controlCoordinates.targetOffsetY) === Math.abs(_this6.controlCoordinates.limitOffsetY)) {
_this6.controlCoordinates.initialOffsetY = _this6.controlCoordinates.targetOffsetY;
_this6.controlCoordinates.initialPointerOffsetY = _this6.controlCoordinates.pointerOffsetY;
}
_this6.setZoomData(_this6.controlCoordinates.initialScale, _this6.controlCoordinates.targetOffsetX, _this6.controlCoordinates.targetOffsetY);
_this6.zoomPanElement(_this6.controlCoordinates.targetOffsetX + "px", _this6.controlCoordinates.targetOffsetY + "px", _this6.controlCoordinates.targetScale);
}
if (!_this6.controlCoordinates.zoomed) {
_this6.controlCoordinates.swipeEnd = event.pageX || event.touches[0].pageX;
_this6.controlCoordinates.swipeYEnd = event.pageY || event.touches[0].pageY;
_this6.controlCoordinates.swipeDiff = _this6.controlCoordinates.swipeStart - _this6.controlCoordinates.swipeEnd;
_this6.controlCoordinates.swipeYDiff = _this6.controlCoordinates.swipeYStart - _this6.controlCoordinates.swipeYEnd;
if (_this6.options.animationSlide) {
_this6.slide(0, -_this6.controlCoordinates.swipeDiff + 'px');
}
}
});
this.addEventListener(this.domNodes.image, ['touchend.' + this.eventNamespace, 'mouseup.' + this.eventNamespace, 'touchcancel.' + this.eventNamespace, 'mouseleave.' + this.eventNamespace, 'pointerup', 'pointercancel', 'MSPointerUp', 'MSPointerCancel'], function (event) {
if (_this6.isTouchDevice && event.type === 'touchend') {
_this6.controlCoordinates.touchCount = event.touches.length;
if (_this6.controlCoordinates.touchCount === 0)
/* No touch */
{
/* Set attributes */
_this6.setZoomData(_this6.controlCoordinates.initialScale, _this6.controlCoordinates.targetOffsetX, _this6.controlCoordinates.targetOffsetY);
if (_this6.controlCoordinates.initialScale === 1) {
_this6.controlCoordinates.zoomed = false;
if (_this6.domNodes.caption.style.display === 'none') {
_this6.fadeIn(_this6.domNodes.caption, 200);
}
}
_this6.controlCoordinates.initialPinchDistance = null;
_this6.controlCoordinates.capture = false;
} else if (_this6.controlCoordinates.touchCount === 1)
/* Single touch */
{
_this6.controlCoordinates.initialPointerOffsetX = event.touches[0].clientX;
_this6.controlCoordinates.initialPointerOffsetY = event.touches[0].clientY;
} else if (_this6.controlCoordinates.touchCount > 1)
/* Pinch */
{
_this6.controlCoordinates.initialPinchDistance = null;
}
}
if (_this6.controlCoordinates.mousedown) {
_this6.controlCoordinates.mousedown = false;
var possibleDir = true;
if (!_this6.options.loop) {
if (_this6.currentImageIndex === 0 && _this6.controlCoordinates.swipeDiff < 0) {
possibleDir = false;
}
if (_this6.currentImageIndex >= _this6.relatedElements.length - 1 && _this6.controlCoordinates.swipeDiff > 0) {
possibleDir = false;
}
}
if (Math.abs(_this6.controlCoordinates.swipeDiff) > _this6.options.swipeTolerance && possibleDir) {
_this6.loadImage(_this6.controlCoordinates.swipeDiff > 0 ? 1 : -1);
} else if (_this6.options.animationSlide) {
_this6.slide(_this6.options.animationSpeed / 1000, 0 + 'px');
}
if (_this6.options.swipeClose && Math.abs(_this6.controlCoordinates.swipeYDiff) > 50 && Math.abs(_this6.controlCoordinates.swipeDiff) < _this6.options.swipeTolerance) {
_this6.close();
}
}
});
this.addEventListener(this.domNodes.image, ['dblclick'], function (event) {
if (_this6.isTouchDevice) return;
_this6.controlCoordinates.initialPointerOffsetX = event.clientX;
_this6.controlCoordinates.initialPointerOffsetY = event.clientY;
_this6.controlCoordinates.containerHeight = _this6.getDimensions(_this6.domNodes.image).height;
_this6.controlCoordinates.containerWidth = _this6.getDimensions(_this6.domNodes.image).width;
_this6.controlCoordinates.imgHeight = _this6.getDimensions(_this6.currentImage).height;
_this6.controlCoordinates.imgWidth = _this6.getDimensions(_this6.currentImage).width;
_this6.controlCoordinates.containerOffsetX = _this6.domNodes.image.offsetLeft;
_this6.controlCoordinates.containerOffsetY = _this6.domNodes.image.offsetTop;
_this6.currentImage.classList.add('sl-transition');
if (!_this6.controlCoordinates.zoomed) {
_this6.controlCoordinates.initialScale = _this6.options.doubleTapZoom;
_this6.setZoomData(_this6.controlCoordinates.initialScale, 0, 0);
_this6.zoomPanElement(0 + "px", 0 + "px", _this6.controlCoordinates.initialScale);
if (!_this6.domNodes.caption.style.opacity && _this6.domNodes.caption.style.display !== 'none') {
_this6.fadeOut(_this6.domNodes.caption, 200);
}
_this6.controlCoordinates.zoomed = true;
} else {
_this6.controlCoordinates.initialScale = 1;
_this6.setZoomData(_this6.controlCoordinates.initialScale, 0, 0);
_this6.zoomPanElement(0 + "px", 0 + "px", _this6.controlCoordinates.initialScale);
_this6.controlCoordinates.zoomed = false;
if (_this6.domNodes.caption.style.display === 'none') {
_this6.fadeIn(_this6.domNodes.caption, 200);
}
}
setTimeout(function () {
if (_this6.currentImage) {
_this6.currentImage.classList.remove('sl-transition');
}
}, 200);
_this6.controlCoordinates.capture = true;
return false;
});
}
}, {
key: "getDimensions",
value: function getDimensions(element) {
var styles = window.getComputedStyle(element),
height = element.offsetHeight,
width = element.offsetWidth,
borderTopWidth = parseFloat(styles.borderTopWidth),
borderBottomWidth = parseFloat(styles.borderBottomWidth),
paddingTop = parseFloat(styles.paddingTop),
paddingBottom = parseFloat(styles.paddingBottom),
borderLeftWidth = parseFloat(styles.borderLeftWidth),
borderRightWidth = parseFloat(styles.borderRightWidth),
paddingLeft = parseFloat(styles.paddingLeft),
paddingRight = parseFloat(styles.paddingRight);
return {
height: height - borderBottomWidth - borderTopWidth - paddingTop - paddingBottom,
width: width - borderLeftWidth - borderRightWidth - paddingLeft - paddingRight
};
}
}, {
key: "updateHash",
value: function updateHash() {
var newHash = 'pid=' + (this.currentImageIndex + 1),
newURL = window.location.href.split('#')[0] + '#' + newHash;
this.hashReseted = false;
if (this.pushStateSupport) {
window.history[this.historyHasChanges ? 'replaceState' : 'pushState']('', document.title, newURL);
} else {
// what is the browser target of this?
if (this.historyHasChanges) {
window.location.replace(newURL);
} else {
window.location.hash = newHash;
}
}
if (!this.historyHasChanges) {
this.urlChangedOnce = true;
}
this.historyHasChanges = true;
}
}, {
key: "resetHash",
value: function resetHash() {
this.hashReseted = true;
if (this.urlChangedOnce) {
history.back();
} else {
if (this.pushStateSupport) {
history.pushState('', document.title, window.location.pathname + window.location.search);
} else {
window.location.hash = '';
}
} //
//in case an history operation is still pending
clearTimeout(this.historyUpdateTimeout);
}
}, {
key: "updateURL",
value: function updateURL() {
clearTimeout(this.historyUpdateTimeout);
if (!this.historyHasChanges) {
this.updateHash(); // first time
} else {
this.historyUpdateTimeout = setTimeout(this.updateHash.bind(this), 800);
}
}
}, {
key: "setCaption",
value: function setCaption(captionText, imageWidth) {
var _this7 = this;
if (this.options.captions && captionText && captionText !== '' && typeof captionText !== "undefined") {
this.hide(this.domNodes.caption);
this.domNodes.caption.style.width = imageWidth + 'px';
this.domNodes.caption.innerHTML = captionText;
this.domNodes.image.appendChild(this.domNodes.caption);
setTimeout(function () {
_this7.fadeIn(_this7.domNodes.caption, 300);
}, this.options.captionDelay);
}
}
}, {
key: "slide",
value: function slide(speed, pos) {
if (!this.transitionCapable) {
return this.domNodes.image.style.left = pos;
}
this.domNodes.image.style[this.transitionPrefix + 'transform'] = 'translateX(' + pos + ')';
this.domNodes.image.style[this.transitionPrefix + 'transition'] = this.transitionPrefix + 'transform ' + speed + 's linear';
}
}, {
key: "getRelated",
value: function getRelated(rel) {
var elems;
if (rel && rel !== false && rel !== 'nofollow') {
elems = Array.from(this.elements).filter(function (element) {
return element.getAttribute('rel') === rel;
});
} else {
elems = this.elements;
}
return elems;
}
}, {
key: "openImage",
value: function openImage(element) {
var _this8 = this;
element.dispatchEvent(new Event('show.' + this.eventNamespace));
if (this.options.disableScroll) {
this.globalScrollbarWidth = this.toggleScrollbar('hide');
}
if (this.options.htmlClass && this.options.htmlClass !== '') {
document.querySelector('html').classList.add(this.options.htmlClass);
}
document.body.appendChild(this.domNodes.wrapper);
this.domNodes.wrapper.appendChild(this.domNodes.image);
if (this.options.overlay) {
document.body.appendChild(this.domNodes.overlay);
}
this.relatedElements = this.getRelated(element.rel);
if (this.options.showCounter) {
if (this.relatedElements.length == 1 && this.domNodes.wrapper.contains(this.domNodes.counter)) {
this.domNodes.wrapper.removeChild(this.domNodes.counter);
} else if (this.relatedElements.length > 1 && !this.domNodes.wrapper.contains(this.domNodes.counter)) {
this.domNodes.wrapper.appendChild(this.domNodes.counter);
}
}
this.isAnimating = true;
this.currentImageIndex = this.relatedElements.indexOf(element);
var targetURL = element.getAttribute(this.options.sourceAttr);
this.currentImage = document.createElement('img');
this.currentImage.style.display = 'none';
this.currentImage.setAttribute('src', targetURL);
this.currentImage.dataset.scale = 1;
this.currentImage.dataset.translateX = 0;
this.currentImage.dataset.translateY = 0;
if (this.loadedImages.indexOf(targetURL) === -1) {
this.loadedImages.push(targetURL);
}
this.domNodes.image.innerHTML = '';
this.domNodes.image.setAttribute('style', '');
this.domNodes.image.appendChild(this.currentImage);
this.fadeIn(this.domNodes.overlay, 300);
this.fadeIn([this.domNodes.counter, this.domNodes.navigation, this.domNodes.closeButton], 300);
this.show(this.domNodes.spinner);
this.domNodes.counter.querySelector('.sl-current').innerHTML = this.currentImageIndex + 1;
this.domNodes.counter.querySelector('.sl-total').innerHTML = this.relatedElements.length;
this.adjustImage();
if (this.options.preloading) {
this.preload();
}
setTimeout(function () {
element.dispatchEvent(new Event('shown.' + _this8.eventNamespace));
}, this.options.animationSpeed);
} // utility
}, {
key: "addEventListener",
value: function addEventListener(elements, events, callback, opts) {
elements = this.wrap(elements);
events = this.wrap(events);
var _iterator = _createForOfIteratorHelper(elements),
_step;
try {
for (_iterator.s(); !(_step = _iterator.n()).done;) {
var element = _step.value;
if (!element.namespaces) {
element.namespaces = {};
} // save the namespaces addEventListener the DOM element itself
var _iterator2 = _createForOfIteratorHelper(events),
_step2;
try {
for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
var event = _step2.value;
var options = opts || false;
element.namespaces[event] = callback;
element.addEventListener(event.split('.')[0], callback, options);
}
} catch (err) {
_iterator2.e(err);
} finally {
_iterator2.f();
}
}
} catch (err) {
_iterator.e(err);
} finally {
_iterator.f();
}
}
}, {
key: "removeEventListener",
value: function removeEventListener(elements, events) {
elements = this.wrap(elements);
events = this.wrap(events);
var _iterator3 = _createForOfIteratorHelper(elements),
_step3;
try {
for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
var element = _step3.value;
var _iterator4 = _createForOfIteratorHelper(events),
_step4;
try {
for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
var event = _step4.value;
element.removeEventListener(event.split('.')[0], element.namespaces[event]);
delete element.namespaces[event];
}
} catch (err) {
_iterator4.e(err);
} finally {
_iterator4.f();
}
}
} catch (err) {
_iterator3.e(err);
} finally {
_iterator3.f();
}
}
}, {
key: "fadeOut",
value: function fadeOut(elements, duration, callback) {
var _this9 = this;
elements = this.wrap(elements);
var _iterator5 = _createForOfIteratorHelper(elements),
_step5;
try {
for (_iterator5.s(); !(_step5 = _iterator5.n()).done;) {
var element = _step5.value;
element.style.opacity = 1;
}
} catch (err) {
_iterator5.e(err);
} finally {
_iterator5.f();
}
var step = 16.66666 / (duration || 300),
fade = function fade() {
var currentOpacity = parseFloat(elements[0].style.opacity);
if ((currentOpacity -= step) < 0) {
var _iterator6 = _createForOfIteratorHelper(elements),
_step6;
try {
for (_iterator6.s(); !(_step6 = _iterator6.n()).done;) {
var element = _step6.value;
element.style.display = "none";
element.style.opacity = '';
}
} catch (err) {
_iterator6.e(err);
} finally {
_iterator6.f();
}
callback && callback.call(_this9, elements);
} else {
var _iterator7 = _createForOfIteratorHelper(elements),
_step7;
try {
for (_iterator7.s(); !(_step7 = _iterator7.n()).done;) {
var _element = _step7.value;
_element.style.opacity = currentOpacity;
}
} catch (err) {
_iterator7.e(err);
} finally {
_iterator7.f();
}
requestAnimationFrame(fade);
}
};
fade();
}
}, {
key: "fadeIn",
value: function fadeIn(elements, duration, callback, display) {
var _this10 = this;
elements = this.wrap(elements);
var _iterator8 = _createForOfIteratorHelper(elements),
_step8;
try {
for (_iterator8.s(); !(_step8 = _iterator8.n()).done;) {
var element = _step8.value;
element.style.opacity = 0;
element.style.display = display || "block";
}
} catch (err) {
_iterator8.e(err);
} finally {
_iterator8.f();
}
var opacityTarget = parseFloat(elements[0].dataset.opacityTarget || 1),
step = 16.66666 * opacityTarget / (duration || 300),
fade = function fade() {
var currentOpacity = parseFloat(elements[0].style.opacity);
if (!((currentOpacity += step) > opacityTarget)) {
var _iterator9 = _createForOfIteratorHelper(elements),
_step9;
try {
for (_iterator9.s(); !(_step9 = _iterator9.n()).done;) {
var element = _step9.value;
element.style.opacity = currentOpacity;
}
} catch (err) {
_iterator9.e(err);
} finally {
_iterator9.f();
}
requestAnimationFrame(fade);
} else {
var _iterator10 = _createForOfIteratorHelper(elements),
_step10;
try {
for (_iterator10.s(); !(_step10 = _iterator10.n()).done;) {
var _element2 = _step10.value;
_element2.style.opacity = '';
}
} catch (err) {
_iterator10.e(err);
} finally {
_iterator10.f();
}
callback && callback.call(_this10, elements);
}
};
fade();
}
}, {
key: "hide",
value: function hide(elements) {
elements = this.wrap(elements);
var _iterator11 = _createForOfIteratorHelper(elements),
_step11;
try {
for (_iterator11.s(); !(_step11 = _iterator11.n()).done;) {
var element = _step11.value;
element.dataset.initialDisplay = element.style.display;
element.style.display = 'none';
}
} catch (err) {
_iterator11.e(err);
} finally {
_iterator11.f();
}
}
}, {
key: "show",
value: function show(elements, display) {
elements = this.wrap(elements);
var _iterator12 = _createForOfIteratorHelper(elements),
_step12;
try {
for (_iterator12.s(); !(_step12 = _iterator12.n()).done;) {
var element = _step12.value;
element.style.display = element.dataset.initialDisplay || display || 'block';
}
} catch (err) {
_iterator12.e(err);
} finally {
_iterator12.f();
}
}
}, {
key: "wrap",
value: function wrap(input) {
return typeof input[Symbol.iterator] === 'function' && typeof input !== 'string' ? input : [input];
}
}, {
key: "on",
value: function on(events, callback) {
events = this.wrap(events);
var _iterator13 = _createForOfIteratorHelper(this.elements),
_step13;
try {
for (_iterator13.s(); !(_step13 = _iterator13.n()).done;) {
var element = _step13.value;
if (!element.fullyNamespacedEvents) {
element.fullyNamespacedEvents = {};
}
var _iterator14 = _createForOfIteratorHelper(events),
_step14;
try {
for (_iterator14.s(); !(_step14 = _iterator14.n()).done;) {
var event = _step14.value;
element.fullyNamespacedEvents[event] = callback;
element.addEventListener(event, callback);
}
} catch (err) {
_iterator14.e(err);
} finally {
_iterator14.f();
}
}
} catch (err) {
_iterator13.e(err);
} finally {
_iterator13.f();
}
return this;
}
}, {
key: "off",
value: function off(events) {
events = this.wrap(events);
var _iterator15 = _createForOfIteratorHelper(this.elements),
_step15;
try {
for (_iterator15.s(); !(_step15 = _iterator15.n()).done;) {
var element = _step15.value;
var _iterator16 = _createForOfIteratorHelper(events),
_step16;
try {
for (_iterator16.s(); !(_step16 = _iterator16.n()).done;) {
var event = _step16.value;
if (typeof element.fullyNamespacedEvents !== 'undefined' && event in element.fullyNamespacedEvents) {
element.removeEventListener(event, element.fullyNamespacedEvents[event]);
}
}
} catch (err) {
_iterator16.e(err);
} finally {
_iterator16.f();
}
}
} catch (err) {
_iterator15.e(err);
} finally {
_iterator15.f();
}
return this;
} // api
}, {
key: "open",
value: function open(elem) {
elem = elem || this.elements[0];
if (typeof jQuery !== "undefined" && elem instanceof jQuery) {
elem = elem.get(0);
}
this.initialImageIndex = this.elements.indexOf(elem);
if (this.initialImageIndex > -1) {
this.openImage(elem);
}
}
}, {
key: "next",
value: function next() {
this.loadImage(1);
}
}, {
key: "prev",
value: function prev() {
this.loadImage(-1);
} //close is exposed anyways..
}, {
key: "destroy",
value: function destroy() {
//remove all custom event listeners from elements
this.off(['close.' + this.eventNamespace, 'closed.' + this.eventNamespace, 'nextImageLoaded.' + this.eventNamespace, 'prevImageLoaded.' + this.eventNamespace, 'change.' + this.eventNamespace, 'nextDone.' + this.eventNamespace, 'prevDone.' + this.eventNamespace, 'error.' + this.eventNamespace, 'changed.' + this.eventNamespace, 'next.' + this.eventNamespace, 'prev.' + this.eventNamespace, 'show.' + this.eventNamespace, 'shown.' + this.eventNamespace]);
this.removeEventListener(this.elements, 'click.' + this.eventNamespace);
this.removeEventListener(document.body, 'contextmenu.' + this.eventNamespace);
this.removeEventListener(document.body, 'keyup.' + this.eventNamespace);
this.removeEventListener(this.domNodes.navigation.getElementsByTagName('button'), 'click.' + this.eventNamespace);
this.removeEventListener(this.domNodes.closeButton, 'click.' + this.eventNamespace);
this.removeEventListener(window, 'resize.' + this.eventNamespace);
this.removeEventListener(window, 'hashchange.' + this.eventNamespace);
this.close();
if (this.isOpen) {
document.body.removeChild(this.domNodes.wrapper);
document.body.removeChild(this.domNodes.overlay);
}
this.elements = null;
}
}, {
key: "refresh",
value: function refresh() {
if (!this.initialSelector) {
throw 'refreshing only works when you initialize using a selector!';
}
var options = this.options,
selector = this.initialSelector;
this.destroy();
this.constructor(selector, options);
return this;
}
}, {
key: "hash",
get: function get() {
return window.location.hash.substring(1);
}
}]);
return SimpleLightbox;
}();
(function ($, window, document, undefined) {
'use strict';
$.fn.simpleLightbox = function (options) {
return new SimpleLightbox(this.get(), options);
};
})(jQuery, window, document);
// nextgen-simple-light-box.js
jQuery(function($) {
var selector = null;
var lightbox = null;
var nextgen_simplebox_options = {
history: false,
animationSlide: false,
animationSpeed: 100,
captionSelector: 'self'
};
var nextgen_simplelightbox_init = function() {
selector = nextgen_lightbox_filter_selector($, $(".ngg-simplelightbox"));
if (selector.length > 0) {
lightbox = selector.simpleLightbox(nextgen_simplebox_options);
}
};
nextgen_simplelightbox_init();
$(window).on('refreshed', function() {
if (typeof lightbox !== 'undefined') {
lightbox.destroy();
}
selector = nextgen_lightbox_filter_selector($, $(".ngg-simplelightbox"));
if (selector.length > 0) {
lightbox = selector.simpleLightbox(nextgen_simplebox_options);
}
});
});
