(function(window, document, $, undefined) {
"use strict";
window.console = window.console || {
info: function(stuff) {}
};
// If there's no jQuery, fancyBox can't work
// =========================================
if (!$) {
return;
}
// Check if fancyBox is already initialized
// ========================================
if ($.fn.fancybox) {
console.info("fancyBox already initialized");
return;
}
// Private default settings
// ========================
var defaults = {
// Enable infinite gallery navigation
loop: false,
// Horizontal space between slides
gutter: 50,
// Enable keyboard navigation
keyboard: true,
// Should display navigation arrows at the screen edges
arrows: true,
// Should display counter at the top left corner
infobar: true,
// Should display close button (using `btnTpl.smallBtn` template) over the content
// Can be true, false, "auto"
// If "auto" - will be automatically enabled for "html", "inline" or "ajax" items
smallBtn: "auto",
// Should display toolbar (buttons at the top)
// Can be true, false, "auto"
// If "auto" - will be automatically hidden if "smallBtn" is enabled
toolbar: "auto",
// What buttons should appear in the top right corner.
// Buttons will be created using templates from `btnTpl` option
// and they will be placed into toolbar (class="fancybox-toolbar"` element)
buttons: [
"zoom",
//"share",
//"slideShow",
//"fullScreen",
//"download",
"thumbs",
"close"
],
// Detect "idle" time in seconds
idleTime: 3,
// Disable right-click and use simple image protection for images
protect: false,
// Shortcut to make content "modal" - disable keyboard navigtion, hide buttons, etc
modal: false,
image: {
// Wait for images to load before displaying
// true - wait for image to load and then display;
// false - display thumbnail and load the full-sized image over top,
// requires predefined image dimensions (`data-width` and `data-height` attributes)
preload: false
},
ajax: {
// Object containing settings for ajax request
settings: {
// This helps to indicate that request comes from the modal
// Feel free to change naming
data: {
fancybox: true
}
}
},
iframe: {
// Iframe template
tpl:
'<iframe id="fancybox-frame{rnd}" name="fancybox-frame{rnd}" class="fancybox-iframe" frameborder="0" vspace="0" hspace="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen allowtransparency="true" src=""></iframe>',
// Preload iframe before displaying it
// This allows to calculate iframe content width and height
// (note: Due to "Same Origin Policy", you can't get cross domain data).
preload: true,
// Custom CSS styling for iframe wrapping element
// You can use this to set custom iframe dimensions
css: {},
// Iframe tag attributes
attr: {
scrolling: "auto"
}
},
// Default content type if cannot be detected automatically
defaultType: "image",
// Open/close animation type
// Possible values:
// false - disable
// "zoom" - zoom images from/to thumbnail
// "fade"
// "zoom-in-out"
//
animationEffect: "zoom",
// Duration in ms for open/close animation
animationDuration: 366,
// Should image change opacity while zooming
// If opacity is "auto", then opacity will be changed if image and thumbnail have different aspect ratios
zoomOpacity: "auto",
// Transition effect between slides
//
// Possible values:
// false - disable
// "fade'
// "slide'
// "circular'
// "tube'
// "zoom-in-out'
// "rotate'
//
transitionEffect: "fade",
// Duration in ms for transition animation
transitionDuration: 366,
// Custom CSS class for slide element
slideClass: "",
// Custom CSS class for layout
baseClass: "",
// Base template for layout
baseTpl:
'<div class="fancybox-container" role="dialog" tabindex="-1">' +
'<div class="fancybox-bg"></div>' +
'<div class="fancybox-inner">' +
'<div class="fancybox-infobar">' +
"<span data-fancybox-index></span> / <span data-fancybox-count></span>" +
"</div>" +
'<div class="fancybox-toolbar">{{buttons}}</div>' +
'<div class="fancybox-navigation">{{arrows}}</div>' +
'<div class="fancybox-stage"></div>' +
'<div class="fancybox-caption"></div>' +
"</div>" +
"</div>",
// Loading indicator template
spinnerTpl: '<div class="fancybox-loading"></div>',
// Error message template
errorTpl: '<div class="fancybox-error"><p>{{ERROR}}</p></div>',
btnTpl: {
download:
'<a download data-fancybox-download class="fancybox-button fancybox-button--download" title="{{DOWNLOAD}}" href="javascript:;">' +
'<svg viewBox="0 0 40 40">' +
'<path d="M13,16 L20,23 L27,16 M20,7 L20,23 M10,24 L10,28 L30,28 L30,24" />' +
"</svg>" +
"</a>",
zoom:
'<button data-fancybox-zoom class="fancybox-button fancybox-button--zoom" title="{{ZOOM}}">' +
'<svg viewBox="0 0 40 40">' +
'<path d="M18,17 m-8,0 a8,8 0 1,0 16,0 a8,8 0 1,0 -16,0 M24,22 L31,29" />' +
"</svg>" +
"</button>",
close:
'<button data-fancybox-close class="fancybox-button fancybox-button--close" title="{{CLOSE}}">' +
'<svg viewBox="0 0 40 40">' +
'<path d="M10,10 L30,30 M30,10 L10,30" />' +
"</svg>" +
"</button>",
// This small close button will be appended to your html/inline/ajax content by default,
// if "smallBtn" option is not set to false
smallBtn:
'<button data-fancybox-close class="fancybox-close-small" title="{{CLOSE}}"><svg viewBox="0 0 32 32"><path d="M10,10 L22,22 M22,10 L10,22"></path></svg></button>',
// Arrows
arrowLeft:
'<a data-fancybox-prev class="fancybox-button fancybox-button--arrow_left" title="{{PREV}}" href="javascript:;">' +
'<svg viewBox="0 0 40 40">' +
'<path d="M18,12 L10,20 L18,28 M10,20 L30,20"></path>' +
"</svg>" +
"</a>",
arrowRight:
'<a data-fancybox-next class="fancybox-button fancybox-button--arrow_right" title="{{NEXT}}" href="javascript:;">' +
'<svg viewBox="0 0 40 40">' +
'<path d="M10,20 L30,20 M22,12 L30,20 L22,28"></path>' +
"</svg>" +
"</a>"
},
// Container is injected into this element
parentEl: "body",
// Focus handling
// ==============
// Try to focus on the first focusable element after opening
autoFocus: false,
// Put focus back to active element after closing
backFocus: true,
// Do not let user to focus on element outside modal content
trapFocus: true,
// Module specific options
// =======================
fullScreen: {
autoStart: false
},
// Set `touch: false` to disable dragging/swiping
touch: {
vertical: true, // Allow to drag content vertically
momentum: true // Continue movement after releasing mouse/touch when panning
},
// Hash value when initializing manually,
// set `false` to disable hash change
hash: null,
// Customize or add new media types
// Example:
/*
media : {
youtube : {
params : {
autoplay : 0
}
}
}
*/
media: {},
slideShow: {
autoStart: false,
speed: 4000
},
thumbs: {
autoStart: false, // Display thumbnails on opening
hideOnClose: true, // Hide thumbnail grid when closing animation starts
parentEl: ".fancybox-container", // Container is injected into this element
axis: "y" // Vertical (y) or horizontal (x) scrolling
},
// Use mousewheel to navigate gallery
// If 'auto' - enabled for images only
wheel: "auto",
// Callbacks
//==========
// See Documentation/API/Events for more information
// Example:
/*
afterShow: function( instance, current ) {
console.info( 'Clicked element:' );
console.info( current.opts.$orig );
}
*/
onInit: $.noop, // When instance has been initialized
beforeLoad: $.noop, // Before the content of a slide is being loaded
afterLoad: $.noop, // When the content of a slide is done loading
beforeShow: $.noop, // Before open animation starts
afterShow: $.noop, // When content is done loading and animating
beforeClose: $.noop, // Before the instance attempts to close. Return false to cancel the close.
afterClose: $.noop, // After instance has been closed
onActivate: $.noop, // When instance is brought to front
onDeactivate: $.noop, // When other instance has been activated
// Interaction
// ===========
// Use options below to customize taken action when user clicks or double clicks on the fancyBox area,
// each option can be string or method that returns value.
//
// Possible values:
// "close" - close instance
// "next" - move to next gallery item
// "nextOrClose" - move to next gallery item or close if gallery has only one item
// "toggleControls" - show/hide controls
// "zoom" - zoom image (if loaded)
// false - do nothing
// Clicked on the content
clickContent: function(current, event) {
return current.type === "image" ? "zoom" : false;
},
// Clicked on the slide
clickSlide: "close",
// Clicked on the background (backdrop) element;
// if you have not changed the layout, then most likely you need to use `clickSlide` option
clickOutside: "close",
// Same as previous two, but for double click
dblclickContent: false,
dblclickSlide: false,
dblclickOutside: false,
// Custom options when mobile device is detected
// =============================================
mobile: {
idleTime: false,
clickContent: function(current, event) {
return current.type === "image" ? "toggleControls" : false;
},
clickSlide: function(current, event) {
return current.type === "image" ? "toggleControls" : "close";
},
dblclickContent: function(current, event) {
return current.type === "image" ? "zoom" : false;
},
dblclickSlide: function(current, event) {
return current.type === "image" ? "zoom" : false;
}
},
// Internationalization
// ====================
lang: "en",
i18n: {
en: {
CLOSE: "Close",
NEXT: "Next",
PREV: "Previous",
ERROR: "The requested content cannot be loaded. <br/> Please try again later.",
PLAY_START: "Start slideshow",
PLAY_STOP: "Pause slideshow",
FULL_SCREEN: "Full screen",
THUMBS: "Thumbnails",
DOWNLOAD: "Download",
SHARE: "Share",
ZOOM: "Zoom"
},
de: {
CLOSE: "Schliessen",
NEXT: "Weiter",
PREV: "Zurück",
ERROR: "Die angeforderten Daten konnten nicht geladen werden. <br/> Bitte versuchen Sie es später nochmal.",
PLAY_START: "Diaschau starten",
PLAY_STOP: "Diaschau beenden",
FULL_SCREEN: "Vollbild",
THUMBS: "Vorschaubilder",
DOWNLOAD: "Herunterladen",
SHARE: "Teilen",
ZOOM: "Maßstab"
}
}
};
// Few useful variables and methods
// ================================
var $W = $(window);
var $D = $(document);
var called = 0;
// Check if an object is a jQuery object and not a native JavaScript object
// ========================================================================
var isQuery = function(obj) {
return obj && obj.hasOwnProperty && obj instanceof $;
};
// Handle multiple browsers for "requestAnimationFrame" and "cancelAnimationFrame"
// ===============================================================================
var requestAFrame = (function() {
return (
window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
// if all else fails, use setTimeout
function(callback) {
return window.setTimeout(callback, 1000 / 60);
}
);
})();
// Detect the supported transition-end event property name
// =======================================================
var transitionEnd = (function() {
var el = document.createElement("fakeelement"),
t;
var transitions = {
transition: "transitionend",
OTransition: "oTransitionEnd",
MozTransition: "transitionend",
WebkitTransition: "webkitTransitionEnd"
};
for (t in transitions) {
if (el.style[t] !== undefined) {
return transitions[t];
}
}
return "transitionend";
})();
// Force redraw on an element.
// This helps in cases where the browser doesn't redraw an updated element properly
// ================================================================================
var forceRedraw = function($el) {
return $el && $el.length && $el[0].offsetHeight;
};
// Exclude array (`buttons`) options from deep merging
// ===================================================
var mergeOpts = function(opts1, opts2) {
var rez = $.extend(true, {}, opts1, opts2);
$.each(opts2, function(key, value) {
if ($.isArray(value)) {
rez[key] = value;
}
});
return rez;
};
// Class definition
// ================
var FancyBox = function(content, opts, index) {
var self = this;
self.opts = mergeOpts({index: index}, $.fancybox.defaults);
if ($.isPlainObject(opts)) {
self.opts = mergeOpts(self.opts, opts);
}
if ($.fancybox.isMobile) {
self.opts = mergeOpts(self.opts, self.opts.mobile);
}
self.id = self.opts.id || ++called;
self.currIndex = parseInt(self.opts.index, 10) || 0;
self.prevIndex = null;
self.prevPos = null;
self.currPos = 0;
self.firstRun = true;
// All group items
self.group = [];
// Existing slides (for current, next and previous gallery items)
self.slides = {};
// Create group elements
self.addContent(content);
if (!self.group.length) {
return;
}
// Save last active element
self.$lastFocus = $(document.activeElement).trigger("blur");
self.init();
};
$.extend(FancyBox.prototype, {
// Create DOM structure
// ====================
init: function() {
var self = this,
firstItem = self.group[self.currIndex],
firstItemOpts = firstItem.opts,
scrollbarWidth = $.fancybox.scrollbarWidth,
$scrollDiv,
$container,
buttonStr;
// Hide scrollbars
// ===============
if (!$.fancybox.getInstance() && firstItemOpts.hideScrollbar !== false) {
$("body").addClass("fancybox-active");
if (!$.fancybox.isMobile && document.body.scrollHeight > window.innerHeight) {
if (scrollbarWidth === undefined) {
$scrollDiv = $('<div style="width:100px;height:100px;overflow:scroll;" />').appendTo("body");
scrollbarWidth = $.fancybox.scrollbarWidth = $scrollDiv[0].offsetWidth - $scrollDiv[0].clientWidth;
$scrollDiv.remove();
}
$("head").append(
'<style id="fancybox-style-noscroll" type="text/css">.compensate-for-scrollbar { margin-right: ' +
scrollbarWidth +
"px; }</style>"
);
$("body").addClass("compensate-for-scrollbar");
}
}
// Build html markup and set references
// ====================================
// Build html code for buttons and insert into main template
buttonStr = "";
$.each(firstItemOpts.buttons, function(index, value) {
buttonStr += firstItemOpts.btnTpl[value] || "";
});
// Create markup from base template, it will be initially hidden to
// avoid unnecessary work like painting while initializing is not complete
$container = $(
self.translate(
self,
firstItemOpts.baseTpl
.replace("{{buttons}}", buttonStr)
.replace("{{arrows}}", firstItemOpts.btnTpl.arrowLeft + firstItemOpts.btnTpl.arrowRight)
)
)
.attr("id", "fancybox-container-" + self.id)
.addClass("fancybox-is-hidden")
.addClass(firstItemOpts.baseClass)
.data("FancyBox", self)
.appendTo(firstItemOpts.parentEl);
// Create object holding references to jQuery wrapped nodes
self.$refs = {
container: $container
};
["bg", "inner", "infobar", "toolbar", "stage", "caption", "navigation"].forEach(function(item) {
self.$refs[item] = $container.find(".fancybox-" + item);
});
self.trigger("onInit");
// Enable events, deactive previous instances
self.activate();
// Build slides, load and reveal content
self.jumpTo(self.currIndex);
},
// Simple i18n support - replaces object keys found in template
// with corresponding values
// ============================================================
translate: function(obj, str) {
var arr = obj.opts.i18n[obj.opts.lang];
return str.replace(/\{\{(\w+)\}\}/g, function(match, n) {
var value = arr[n];
if (value === undefined) {
return match;
}
return value;
});
},
// Populate current group with fresh content
// Check if each object has valid type and content
// ===============================================
addContent: function(content) {
var self = this,
items = $.makeArray(content),
thumbs;
$.each(items, function(i, item) {
var obj = {},
opts = {},
$item,
type,
found,
src,
srcParts;
// Step 1 - Make sure we have an object
// ====================================
if ($.isPlainObject(item)) {
// We probably have manual usage here, something like
// $.fancybox.open( [ { src : "image.jpg", type : "image" } ] )
obj = item;
opts = item.opts || item;
} else if ($.type(item) === "object" && $(item).length) {
// Here we probably have jQuery collection returned by some selector
$item = $(item);
// Support attributes like `data-options='{"touch" : false}'` and `data-touch='false'`
opts = $item.data() || {};
opts = $.extend(true, {}, opts, opts.options);
// Here we store clicked element
opts.$orig = $item;
obj.src = self.opts.src || opts.src || $item.attr("href");
// Assume that simple syntax is used, for example:
// `$.fancybox.open( $("#test"), {} );`
if (!obj.type && !obj.src) {
obj.type = "inline";
obj.src = item;
}
} else {
// Assume we have a simple html code, for example:
// $.fancybox.open( '<div><h1>Hi!</h1></div>' );
obj = {
type: "html",
src: item + ""
};
}
// Each gallery object has full collection of options
obj.opts = $.extend(true, {}, self.opts, opts);
// Do not merge buttons array
if ($.isArray(opts.buttons)) {
obj.opts.buttons = opts.buttons;
}
// Step 2 - Make sure we have content type, if not - try to guess
// ==============================================================
type = obj.type || obj.opts.type;
src = obj.src || "";
if (!type && src) {
if ((found = src.match(/\.(mp4|mov|ogv)((\?|#).*)?$/i))) {
type = "video";
if (!obj.opts.videoFormat) {
obj.opts.videoFormat = "video/" + (found[1] === "ogv" ? "ogg" : found[1]);
}
} else if (src.match(/(^data:image\/[a-z0-9+\/=]*,)|(\.(jp(e|g|eg)|gif|png|bmp|webp|svg|ico)((\?|#).*)?$)/i)) {
type = "image";
} else if (src.match(/\.(pdf)((\?|#).*)?$/i)) {
type = "iframe";
} else if (src.charAt(0) === "#") {
type = "inline";
}
}
if (type) {
obj.type = type;
} else {
self.trigger("objectNeedsType", obj);
}
if (!obj.contentType) {
obj.contentType = $.inArray(obj.type, ["html", "inline", "ajax"]) > -1 ? "html" : obj.type;
}
// Step 3 - Some adjustments
// =========================
obj.index = self.group.length;
if (obj.opts.smallBtn == "auto") {
obj.opts.smallBtn = $.inArray(obj.type, ["html", "inline", "ajax"]) > -1;
}
if (obj.opts.toolbar === "auto") {
obj.opts.toolbar = !obj.opts.smallBtn;
}
// Find thumbnail image
if (obj.opts.$trigger && obj.index === self.opts.index) {
obj.opts.$thumb = obj.opts.$trigger.find("img:first");
}
if ((!obj.opts.$thumb || !obj.opts.$thumb.length) && obj.opts.$orig) {
obj.opts.$thumb = obj.opts.$orig.find("img:first");
}
// "caption" is a "special" option, it can be used to customize caption per gallery item ..
if ($.type(obj.opts.caption) === "function") {
obj.opts.caption = obj.opts.caption.apply(item, [self, obj]);
}
if ($.type(self.opts.caption) === "function") {
obj.opts.caption = self.opts.caption.apply(item, [self, obj]);
}
// Make sure we have caption as a string or jQuery object
if (!(obj.opts.caption instanceof $)) {
obj.opts.caption = obj.opts.caption === undefined ? "" : obj.opts.caption + "";
}
// Check if url contains "filter" used to filter the content
// Example: "ajax.html #something"
if (obj.type === "ajax") {
srcParts = src.split(/\s+/, 2);
if (srcParts.length > 1) {
obj.src = srcParts.shift();
obj.opts.filter = srcParts.shift();
}
}
// Hide all buttons and disable interactivity for modal items
if (obj.opts.modal) {
obj.opts = $.extend(true, obj.opts, {
// Remove buttons
infobar: 0,
toolbar: 0,
smallBtn: 0,
// Disable keyboard navigation
keyboard: 0,
// Disable some modules
slideShow: 0,
fullScreen: 0,
thumbs: 0,
touch: 0,
// Disable click event handlers
clickContent: false,
clickSlide: false,
clickOutside: false,
dblclickContent: false,
dblclickSlide: false,
dblclickOutside: false
});
}
// Step 4 - Add processed object to group
// ======================================
self.group.push(obj);
});
// Update controls if gallery is already opened
if (Object.keys(self.slides).length) {
self.updateControls();
// Update thumbnails, if needed
thumbs = self.Thumbs;
if (thumbs && thumbs.isActive) {
thumbs.create();
thumbs.focus();
}
}
},
// Attach an event handler functions for:
// - navigation buttons
// - browser scrolling, resizing;
// - focusing
// - keyboard
// - detect idle
// ======================================
addEvents: function() {
var self = this;
self.removeEvents();
// Make navigation elements clickable
self.$refs.container
.on("click.fb-close", "[data-fancybox-close]", function(e) {
e.stopPropagation();
e.preventDefault();
self.close(e);
})
.on("touchstart.fb-prev click.fb-prev", "[data-fancybox-prev]", function(e) {
e.stopPropagation();
e.preventDefault();
self.previous();
})
.on("touchstart.fb-next click.fb-next", "[data-fancybox-next]", function(e) {
e.stopPropagation();
e.preventDefault();
self.next();
})
.on("click.fb", "[data-fancybox-zoom]", function(e) {
// Click handler for zoom button
self[self.isScaledDown() ? "scaleToActual" : "scaleToFit"]();
});
// Handle page scrolling and browser resizing
$W.on("orientationchange.fb resize.fb", function(e) {
if (e && e.originalEvent && e.originalEvent.type === "resize") {
requestAFrame(function() {
self.update();
});
} else {
self.$refs.stage.hide();
setTimeout(function() {
self.$refs.stage.show();
self.update();
}, $.fancybox.isMobile ? 600 : 250);
}
});
// Trap keyboard focus inside of the modal, so the user does not accidentally tab outside of the modal
// (a.k.a. "escaping the modal")
$D.on("focusin.fb", function(e) {
var instance = $.fancybox ? $.fancybox.getInstance() : null;
if (
instance.isClosing ||
!instance.current ||
!instance.current.opts.trapFocus ||
$(e.target).hasClass("fancybox-container") ||
$(e.target).is(document)
) {
return;
}
if (instance && $(e.target).css("position") !== "fixed" && !instance.$refs.container.has(e.target).length) {
e.stopPropagation();
instance.focus();
}
});
// Enable keyboard navigation
$D.on("keydown.fb", function(e) {
var current = self.current,
keycode = e.keyCode || e.which;
if (!current || !current.opts.keyboard) {
return;
}
if (e.ctrlKey || e.altKey || e.shiftKey || $(e.target).is("input") || $(e.target).is("textarea")) {
return;
}
// Backspace and Esc keys
if (keycode === 8 || keycode === 27) {
e.preventDefault();
self.close(e);
return;
}
// Left arrow and Up arrow
if (keycode === 37 || keycode === 38) {
e.preventDefault();
self.previous();
return;
}
// Righ arrow and Down arrow
if (keycode === 39 || keycode === 40) {
e.preventDefault();
self.next();
return;
}
self.trigger("afterKeydown", e, keycode);
});
// Hide controls after some inactivity period
if (self.group[self.currIndex].opts.idleTime) {
self.idleSecondsCounter = 0;
$D.on(
"mousemove.fb-idle mouseleave.fb-idle mousedown.fb-idle touchstart.fb-idle touchmove.fb-idle scroll.fb-idle keydown.fb-idle",
function(e) {
self.idleSecondsCounter = 0;
if (self.isIdle) {
self.showControls();
}
self.isIdle = false;
}
);
self.idleInterval = window.setInterval(function() {
self.idleSecondsCounter++;
if (self.idleSecondsCounter >= self.group[self.currIndex].opts.idleTime && !self.isDragging) {
self.isIdle = true;
self.idleSecondsCounter = 0;
self.hideControls();
}
}, 1000);
}
},
// Remove events added by the core
// ===============================
removeEvents: function() {
var self = this;
$W.off("orientationchange.fb resize.fb");
$D.off("focusin.fb keydown.fb .fb-idle");
this.$refs.container.off(".fb-close .fb-prev .fb-next");
if (self.idleInterval) {
window.clearInterval(self.idleInterval);
self.idleInterval = null;
}
},
// Change to previous gallery item
// ===============================
previous: function(duration) {
return this.jumpTo(this.currPos - 1, duration);
},
// Change to next gallery item
// ===========================
next: function(duration) {
return this.jumpTo(this.currPos + 1, duration);
},
// Switch to selected gallery item
// ===============================
jumpTo: function(pos, duration) {
var self = this,
groupLen = self.group.length,
firstRun,
loop,
current,
previous,
canvasWidth,
currentPos,
transitionProps;
if (self.isDragging || self.isClosing || (self.isAnimating && self.firstRun)) {
return;
}
pos = parseInt(pos, 10);
// Should loop?
loop = self.current ? self.current.opts.loop : self.opts.loop;
if (!loop && (pos < 0 || pos >= groupLen)) {
return false;
}
firstRun = self.firstRun = !Object.keys(self.slides).length;
if (groupLen < 2 && !firstRun && !!self.isDragging) {
return;
}
previous = self.current;
self.prevIndex = self.currIndex;
self.prevPos = self.currPos;
// Create slides
current = self.createSlide(pos);
if (groupLen > 1) {
if (loop || current.index > 0) {
self.createSlide(pos - 1);
}
if (loop || current.index < groupLen - 1) {
self.createSlide(pos + 1);
}
}
self.current = current;
self.currIndex = current.index;
self.currPos = current.pos;
self.trigger("beforeShow", firstRun);
self.updateControls();
currentPos = $.fancybox.getTranslate(current.$slide);
current.isMoved = (currentPos.left !== 0 || currentPos.top !== 0) && !current.$slide.hasClass("fancybox-animated");
// Validate duration length
current.forcedDuration = undefined;
if ($.isNumeric(duration)) {
current.forcedDuration = duration;
} else {
duration = current.opts[firstRun ? "animationDuration" : "transitionDuration"];
}
duration = parseInt(duration, 10);
// Fresh start - reveal container, current slide and start loading content
if (firstRun) {
if (current.opts.animationEffect && duration) {
self.$refs.container.css("transition-duration", duration + "ms");
}
self.$refs.container.removeClass("fancybox-is-hidden");
forceRedraw(self.$refs.container);
self.$refs.container.addClass("fancybox-is-open");
forceRedraw(self.$refs.container);
// Make current slide visible
current.$slide.addClass("fancybox-slide--previous");
// Attempt to load content into slide;
// at this point image would start loading, but inline/html content would load immediately
self.loadSlide(current);
current.$slide.removeClass("fancybox-slide--previous").addClass("fancybox-slide--current");
self.preload("image");
return;
}
// Clean up
$.each(self.slides, function(index, slide) {
$.fancybox.stop(slide.$slide);
});
// Make current that slide is visible even if content is still loading
current.$slide.removeClass("fancybox-slide--next fancybox-slide--previous").addClass("fancybox-slide--current");
// If slides have been dragged, animate them to correct position
if (current.isMoved) {
canvasWidth = Math.round(current.$slide.width());
$.each(self.slides, function(index, slide) {
var pos = slide.pos - current.pos;
$.fancybox.animate(
slide.$slide,
{
top: 0,
left: pos * canvasWidth + pos * slide.opts.gutter
},
duration,
function() {
slide.$slide.removeAttr("style").removeClass("fancybox-slide--next fancybox-slide--previous");
if (slide.pos === self.currPos) {
current.isMoved = false;
self.complete();
}
}
);
});
} else {
self.$refs.stage.children().removeAttr("style");
}
// Start transition that reveals current content
// or wait when it will be loaded
if (current.isLoaded) {
self.revealContent(current);
} else {
self.loadSlide(current);
}
self.preload("image");
if (previous.pos === current.pos) {
return;
}
// Handle previous slide
// =====================
transitionProps = "fancybox-slide--" + (previous.pos > current.pos ? "next" : "previous");
previous.$slide.removeClass("fancybox-slide--complete fancybox-slide--current fancybox-slide--next fancybox-slide--previous");
previous.isComplete = false;
if (!duration || (!current.isMoved && !current.opts.transitionEffect)) {
return;
}
if (current.isMoved) {
previous.$slide.addClass(transitionProps);
} else {
transitionProps = "fancybox-animated " + transitionProps + " fancybox-fx-" + current.opts.transitionEffect;
$.fancybox.animate(previous.$slide, transitionProps, duration, function() {
previous.$slide.removeClass(transitionProps).removeAttr("style");
});
}
},
// Create new "slide" element
// These are gallery items that are actually added to DOM
// =======================================================
createSlide: function(pos) {
var self = this,
$slide,
index;
index = pos % self.group.length;
index = index < 0 ? self.group.length + index : index;
if (!self.slides[pos] && self.group[index]) {
$slide = $('<div class="fancybox-slide"></div>').appendTo(self.$refs.stage);
self.slides[pos] = $.extend(true, {}, self.group[index], {
pos: pos,
$slide: $slide,
isLoaded: false
});
self.updateSlide(self.slides[pos]);
}
return self.slides[pos];
},
// Scale image to the actual size of the image;
// x and y values should be relative to the slide
// ==============================================
scaleToActual: function(x, y, duration) {
var self = this,
current = self.current,
$content = current.$content,
canvasWidth = $.fancybox.getTranslate(current.$slide).width,
canvasHeight = $.fancybox.getTranslate(current.$slide).height,
newImgWidth = current.width,
newImgHeight = current.height,
imgPos,
posX,
posY,
scaleX,
scaleY;
if (self.isAnimating || !$content || !(current.type == "image" && current.isLoaded && !current.hasError)) {
return;
}
$.fancybox.stop($content);
self.isAnimating = true;
x = x === undefined ? canvasWidth * 0.5 : x;
y = y === undefined ? canvasHeight * 0.5 : y;
imgPos = $.fancybox.getTranslate($content);
imgPos.top -= $.fancybox.getTranslate(current.$slide).top;
imgPos.left -= $.fancybox.getTranslate(current.$slide).left;
scaleX = newImgWidth / imgPos.width;
scaleY = newImgHeight / imgPos.height;
// Get center position for original image
posX = canvasWidth * 0.5 - newImgWidth * 0.5;
posY = canvasHeight * 0.5 - newImgHeight * 0.5;
// Make sure image does not move away from edges
if (newImgWidth > canvasWidth) {
posX = imgPos.left * scaleX - (x * scaleX - x);
if (posX > 0) {
posX = 0;
}
if (posX < canvasWidth - newImgWidth) {
posX = canvasWidth - newImgWidth;
}
}
if (newImgHeight > canvasHeight) {
posY = imgPos.top * scaleY - (y * scaleY - y);
if (posY > 0) {
posY = 0;
}
if (posY < canvasHeight - newImgHeight) {
posY = canvasHeight - newImgHeight;
}
}
self.updateCursor(newImgWidth, newImgHeight);
$.fancybox.animate(
$content,
{
top: posY,
left: posX,
scaleX: scaleX,
scaleY: scaleY
},
duration || 330,
function() {
self.isAnimating = false;
}
);
// Stop slideshow
if (self.SlideShow && self.SlideShow.isActive) {
self.SlideShow.stop();
}
},
// Scale image to fit inside parent element
// ========================================
scaleToFit: function(duration) {
var self = this,
current = self.current,
$content = current.$content,
end;
if (self.isAnimating || !$content || !(current.type == "image" && current.isLoaded && !current.hasError)) {
return;
}
$.fancybox.stop($content);
self.isAnimating = true;
end = self.getFitPos(current);
self.updateCursor(end.width, end.height);
$.fancybox.animate(
$content,
{
top: end.top,
left: end.left,
scaleX: end.width / $content.width(),
scaleY: end.height / $content.height()
},
duration || 330,
function() {
self.isAnimating = false;
}
);
},
// Calculate image size to fit inside viewport
// ===========================================
getFitPos: function(slide) {
var self = this,
$content = slide.$content,
width = slide.width || slide.opts.width,
height = slide.height || slide.opts.height,
maxWidth,
maxHeight,
minRatio,
margin,
aspectRatio,
rez = {};
if (!slide.isLoaded || !$content || !$content.length) {
return false;
}
margin = {
top: parseInt(slide.$slide.css("paddingTop"), 10),
right: parseInt(slide.$slide.css("paddingRight"), 10),
bottom: parseInt(slide.$slide.css("paddingBottom"), 10),
left: parseInt(slide.$slide.css("paddingLeft"), 10)
};
// We can not use $slide width here, because it can have different diemensions while in transiton
maxWidth = parseInt(self.$refs.stage.width(), 10) - (margin.left + margin.right);
maxHeight = parseInt(self.$refs.stage.height(), 10) - (margin.top + margin.bottom);
if (!width || !height) {
width = maxWidth;
height = maxHeight;
}
minRatio = Math.min(1, maxWidth / width, maxHeight / height);
// Use floor rounding to make sure it really fits
width = Math.floor(minRatio * width);
height = Math.floor(minRatio * height);
if (slide.type === "image") {
rez.top = Math.floor((maxHeight - height) * 0.5) + margin.top;
rez.left = Math.floor((maxWidth - width) * 0.5) + margin.left;
} else if (slide.contentType === "video") {
// Force aspect ratio for the video
// "I say the whole world must learn of our peaceful ways… by force!"
aspectRatio = slide.opts.width && slide.opts.height ? width / height : slide.opts.ratio || 16 / 9;
if (height > width / aspectRatio) {
height = width / aspectRatio;
} else if (width > height * aspectRatio) {
width = height * aspectRatio;
}
}
rez.width = width;
rez.height = height;
return rez;
},
// Update content size and position for all slides
// ==============================================
update: function() {
var self = this;
$.each(self.slides, function(key, slide) {
self.updateSlide(slide);
});
},
// Update slide content position and size
// ======================================
updateSlide: function(slide, duration) {
var self = this,
$content = slide && slide.$content,
width = slide.width || slide.opts.width,
height = slide.height || slide.opts.height;
if ($content && (width || height || slide.contentType === "video") && !slide.hasError) {
$.fancybox.stop($content);
$.fancybox.setTranslate($content, self.getFitPos(slide));
if (slide.pos === self.currPos) {
self.isAnimating = false;
self.updateCursor();
}
}
slide.$slide.trigger("refresh");
self.$refs.toolbar.toggleClass("compensate-for-scrollbar", slide.$slide.get(0).scrollHeight > slide.$slide.get(0).clientHeight);
self.trigger("onUpdate", slide);
},
// Horizontally center slide
// =========================
centerSlide: function(slide, duration) {
var self = this,
canvasWidth,
pos;
if (self.current) {
canvasWidth = Math.round(slide.$slide.width());
pos = slide.pos - self.current.pos;
$.fancybox.animate(
slide.$slide,
{
top: 0,
left: pos * canvasWidth + pos * slide.opts.gutter,
opacity: 1
},
duration === undefined ? 0 : duration,
null,
false
);
}
},
// Update cursor style depending if content can be zoomed
// ======================================================
updateCursor: function(nextWidth, nextHeight) {
var self = this,
current = self.current,
$container = self.$refs.container.removeClass("fancybox-is-zoomable fancybox-can-zoomIn fancybox-can-drag fancybox-can-zoomOut"),
isZoomable;
if (!current || self.isClosing) {
return;
}
isZoomable = self.isZoomable();
$container.toggleClass("fancybox-is-zoomable", isZoomable);
$("[data-fancybox-zoom]").prop("disabled", !isZoomable);
// Set cursor to zoom in/out if click event is 'zoom'
if (
isZoomable &&
(current.opts.clickContent === "zoom" || ($.isFunction(current.opts.clickContent) && current.opts.clickContent(current) === "zoom"))
) {
if (self.isScaledDown(nextWidth, nextHeight)) {
// If image is scaled down, then, obviously, it can be zoomed to full size
$container.addClass("fancybox-can-zoomIn");
} else {
if (current.opts.touch) {
// If image size ir largen than available available and touch module is not disable,
// then user can do panning
$container.addClass("fancybox-can-drag");
} else {
$container.addClass("fancybox-can-zoomOut");
}
}
} else if (current.opts.touch && current.contentType !== "video") {
$container.addClass("fancybox-can-drag");
}
},
// Check if current slide is zoomable
// ==================================
isZoomable: function() {
var self = this,
current = self.current,
fitPos;
// Assume that slide is zoomable if:
// - image is still loading
// - actual size of the image is smaller than available area
if (current && !self.isClosing && current.type === "image" && !current.hasError) {
if (!current.isLoaded) {
return true;
}
fitPos = self.getFitPos(current);
if (current.width > fitPos.width || current.height > fitPos.height) {
return true;
}
}
return false;
},
// Check if current image dimensions are smaller than actual
// =========================================================
isScaledDown: function(nextWidth, nextHeight) {
var self = this,
rez = false,
current = self.current,
$content = current.$content;
if (nextWidth !== undefined && nextHeight !== undefined) {
rez = nextWidth < current.width && nextHeight < current.height;
} else if ($content) {
rez = $.fancybox.getTranslate($content);
rez = rez.width < current.width && rez.height < current.height;
}
return rez;
},
// Check if image dimensions exceed parent element
// ===============================================
canPan: function() {
var self = this,
rez = false,
current = self.current,
$content;
if (current.type === "image" && ($content = current.$content) && !current.hasError) {
rez = self.getFitPos(current);
rez = Math.abs($content.width() - rez.width) > 1 || Math.abs($content.height() - rez.height) > 1;
}
return rez;
},
// Load content into the slide
// ===========================
loadSlide: function(slide) {
var self = this,
type,
$slide,
ajaxLoad;
if (slide.isLoading || slide.isLoaded) {
return;
}
slide.isLoading = true;
self.trigger("beforeLoad", slide);
type = slide.type;
$slide = slide.$slide;
$slide
.off("refresh")
.trigger("onReset")
.addClass(slide.opts.slideClass);
// Create content depending on the type
switch (type) {
case "image":
self.setImage(slide);
break;
case "iframe":
self.setIframe(slide);
break;
case "html":
self.setContent(slide, slide.src || slide.content);
break;
case "video":
self.setContent(
slide,
'<video class="fancybox-video" controls controlsList="nodownload">' +
'<source src="' +
slide.src +
'" type="' +
slide.opts.videoFormat +
'">' +
"Your browser doesn't support HTML5 video" +
"</video"
);
break;
case "inline":
if ($(slide.src).length) {
self.setContent(slide, $(slide.src));
} else {
self.setError(slide);
}
break;
case "ajax":
self.showLoading(slide);
ajaxLoad = $.ajax(
$.extend({}, slide.opts.ajax.settings, {
url: slide.src,
success: function(data, textStatus) {
if (textStatus === "success") {
self.setContent(slide, data);
}
},
error: function(jqXHR, textStatus) {
if (jqXHR && textStatus !== "abort") {
self.setError(slide);
}
}
})
);
$slide.one("onReset", function() {
ajaxLoad.abort();
});
break;
default:
self.setError(slide);
break;
}
return true;
},
// Use thumbnail image, if possible
// ================================
setImage: function(slide) {
var self = this,
srcset = slide.opts.srcset || slide.opts.image.srcset,
thumbSrc,
found,
temp,
pxRatio,
windowWidth;
// Check if need to show loading icon
slide.timouts = setTimeout(function() {
var $img = slide.$image;
if (slide.isLoading && (!$img || !$img[0].complete) && !slide.hasError) {
self.showLoading(slide);
}
}, 350);
// If we have "srcset", then we need to find first matching "src" value.
// This is necessary, because when you set an src attribute, the browser will preload the image
// before any javascript or even CSS is applied.
if (srcset) {
pxRatio = window.devicePixelRatio || 1;
windowWidth = window.innerWidth * pxRatio;
temp = srcset.split(",").map(function(el) {
var ret = {};
el
.trim()
.split(/\s+/)
.forEach(function(el, i) {
var value = parseInt(el.substring(0, el.length - 1), 10);
if (i === 0) {
return (ret.url = el);
}
if (value) {
ret.value = value;
ret.postfix = el[el.length - 1];
}
});
return ret;
});
// Sort by value
temp.sort(function(a, b) {
return a.value - b.value;
});
// Ok, now we have an array of all srcset values
for (var j = 0; j < temp.length; j++) {
var el = temp[j];
if ((el.postfix === "w" && el.value >= windowWidth) || (el.postfix === "x" && el.value >= pxRatio)) {
found = el;
break;
}
}
// If not found, take the last one
if (!found && temp.length) {
found = temp[temp.length - 1];
}
if (found) {
slide.src = found.url;
// If we have default width/height values, we can calculate height for matching source
if (slide.width && slide.height && found.postfix == "w") {
slide.height = slide.width / slide.height * found.value;
slide.width = found.value;
}
slide.opts.srcset = srcset;
}
}
// This will be wrapper containing both ghost and actual image
slide.$content = $('<div class="fancybox-content"></div>')
.addClass("fancybox-is-hidden")
.appendTo(slide.$slide.addClass("fancybox-slide--image"));
// If we have a thumbnail, we can display it while actual image is loading
// Users will not stare at black screen and actual image will appear gradually
thumbSrc = slide.opts.thumb || (slide.opts.$thumb && slide.opts.$thumb.length ? slide.opts.$thumb.attr("src") : false);
if (slide.opts.preload !== false && slide.opts.width && slide.opts.height && thumbSrc) {
slide.width = slide.opts.width;
slide.height = slide.opts.height;
slide.$ghost = $("<img />")
.one("error", function() {
$(this).remove();
slide.$ghost = null;
})
.one("load", function() {
self.afterLoad(slide);
})
.addClass("fancybox-image")
.appendTo(slide.$content)
.attr("src", thumbSrc);
}
// Start loading actual image
self.setBigImage(slide);
},
// Create full-size image
// ======================
setBigImage: function(slide) {
var self = this,
$img = $("<img />");
slide.$image = $img
.one("error", function() {
self.setError(slide);
})
.one("load", function() {
var sizes;
if (!slide.$ghost) {
self.resolveImageSlideSize(slide, this.naturalWidth, this.naturalHeight);
self.afterLoad(slide);
}
// Clear timeout that checks if loading icon needs to be displayed
if (slide.timouts) {
clearTimeout(slide.timouts);
slide.timouts = null;
}
if (self.isClosing) {
return;
}
if (slide.opts.srcset) {
sizes = slide.opts.sizes;
if (!sizes || sizes === "auto") {
sizes =
(slide.width / slide.height > 1 && $W.width() / $W.height() > 1 ? "100" : Math.round(slide.width / slide.height * 100)) +
"vw";
}
$img.attr("sizes", sizes).attr("srcset", slide.opts.srcset);
}
// Hide temporary image after some delay
if (slide.$ghost) {
setTimeout(function() {
if (slide.$ghost && !self.isClosing) {
slide.$ghost.hide();
}
}, Math.min(300, Math.max(1000, slide.height / 1600)));
}
self.hideLoading(slide);
})
.addClass("fancybox-image")
.attr("src", slide.src)
.appendTo(slide.$content);
if (($img[0].complete || $img[0].readyState == "complete") && $img[0].naturalWidth && $img[0].naturalHeight) {
$img.trigger("load");
} else if ($img[0].error) {
$img.trigger("error");
}
},
// Computes the slide size from image size and maxWidth/maxHeight
// ==============================================================
resolveImageSlideSize: function(slide, imgWidth, imgHeight) {
var maxWidth = parseInt(slide.opts.width, 10),
maxHeight = parseInt(slide.opts.height, 10);
// Sets the default values from the image
slide.width = imgWidth;
slide.height = imgHeight;
if (maxWidth > 0) {
slide.width = maxWidth;
slide.height = Math.floor(maxWidth * imgHeight / imgWidth);
}
if (maxHeight > 0) {
slide.width = Math.floor(maxHeight * imgWidth / imgHeight);
slide.height = maxHeight;
}
},
// Create iframe wrapper, iframe and bindings
// ==========================================
setIframe: function(slide) {
var self = this,
opts = slide.opts.iframe,
$slide = slide.$slide,
$iframe;
slide.$content = $('<div class="fancybox-content' + (opts.preload ? " fancybox-is-hidden" : "") + '"></div>')
.css(opts.css)
.appendTo($slide);
$slide.addClass("fancybox-slide--" + slide.contentType);
slide.$iframe = $iframe = $(opts.tpl.replace(/\{rnd\}/g, new Date().getTime()))
.attr(opts.attr)
.appendTo(slide.$content);
if (opts.preload) {
self.showLoading(slide);
// Unfortunately, it is not always possible to determine if iframe is successfully loaded
// (due to browser security policy)
$iframe.on("load.fb error.fb", function(e) {
this.isReady = 1;
slide.$slide.trigger("refresh");
self.afterLoad(slide);
});
// Recalculate iframe content size
// ===============================
$slide.on("refresh.fb", function() {
var $content = slide.$content,
frameWidth = opts.css.width,
frameHeight = opts.css.height,
$contents,
$body;
if ($iframe[0].isReady !== 1) {
return;
}
try {
$contents = $iframe.contents();
$body = $contents.find("body");
} catch (ignore) {}
// Calculate contnet dimensions if it is accessible
if ($body && $body.length && $body.children().length) {
$content.css({
width: "",
height: ""
});
if (frameWidth === undefined) {
frameWidth = Math.ceil(Math.max($body[0].clientWidth, $body.outerWidth(true)));
}
if (frameWidth) {
$content.width(frameWidth);
}
if (frameHeight === undefined) {
frameHeight = Math.ceil(Math.max($body[0].clientHeight, $body.outerHeight(true)));
}
if (frameHeight) {
$content.height(frameHeight);
}
}
$content.removeClass("fancybox-is-hidden");
});
} else {
this.afterLoad(slide);
}
$iframe.attr("src", slide.src);
// Remove iframe if closing or changing gallery item
$slide.one("onReset", function() {
// This helps IE not to throw errors when closing
try {
$(this)
.find("iframe")
.hide()
.unbind()
.attr("src", "//about:blank");
} catch (ignore) {}
$(this)
.off("refresh.fb")
.empty();
slide.isLoaded = false;
});
},
// Wrap and append content to the slide
// ======================================
setContent: function(slide, content) {
var self = this;
if (self.isClosing) {
return;
}
self.hideLoading(slide);
if (slide.$content) {
$.fancybox.stop(slide.$content);
}
slide.$slide.empty();
// If content is a jQuery object, then it will be moved to the slide.
// The placeholder is created so we will know where to put it back.
if (isQuery(content) && content.parent().length) {
// Make sure content is not already moved to fancyBox
content
.parent()
.parent(".fancybox-slide--inline")
.trigger("onReset");
// Create temporary element marking original place of the content
slide.$placeholder = $("<div>")
.hide()
.insertAfter(content);
// Make sure content is visible
content.css("display", "inline-block");
} else if (!slide.hasError) {
// If content is just a plain text, try to convert it to html
if ($.type(content) === "string") {
content = $("<div>")
.append($.trim(content))
.contents();
// If we have text node, then add wrapping element to make vertical alignment work
if (content[0].nodeType === 3) {
content = $("<div>").html(content);
}
}
// If "filter" option is provided, then filter content
if (slide.opts.filter) {
content = $("<div>")
.html(content)
.find(slide.opts.filter);
}
}
slide.$slide.one("onReset", function() {
// Pause all html5 video/audio
$(this)
.find("video,audio")
.trigger("pause");
// Put content back
if (slide.$placeholder) {
slide.$placeholder.after(content.hide()).remove();
slide.$placeholder = null;
}
// Remove custom close button
if (slide.$smallBtn) {
slide.$smallBtn.remove();
slide.$smallBtn = null;
}
// Remove content and mark slide as not loaded
if (!slide.hasError) {
$(this).empty();
slide.isLoaded = false;
}
});
$(content).appendTo(slide.$slide);
if ($(content).is("video,audio")) {
$(content).addClass("fancybox-video");
$(content).wrap("<div></div>");
slide.contentType = "video";
slide.opts.width = slide.opts.width || $(content).attr("width");
slide.opts.height = slide.opts.height || $(content).attr("height");
}
slide.$content = slide.$slide
.children()
.filter("div,form,main,video,audio")
.first()
.addClass("fancybox-content");
slide.$slide.addClass("fancybox-slide--" + slide.contentType);
this.afterLoad(slide);
},
// Display error message
// =====================
setError: function(slide) {
slide.hasError = true;
slide.$slide
.trigger("onReset")
.removeClass("fancybox-slide--" + slide.contentType)
.addClass("fancybox-slide--error");
slide.contentType = "html";
this.setContent(slide, this.translate(slide, slide.opts.errorTpl));
if (slide.pos === this.currPos) {
this.isAnimating = false;
}
},
// Show loading icon inside the slide
// ==================================
showLoading: function(slide) {
var self = this;
slide = slide || self.current;
if (slide && !slide.$spinner) {
slide.$spinner = $(self.translate(self, self.opts.spinnerTpl)).appendTo(slide.$slide);
}
},
// Remove loading icon from the slide
// ==================================
hideLoading: function(slide) {
var self = this;
slide = slide || self.current;
if (slide && slide.$spinner) {
slide.$spinner.remove();
delete slide.$spinner;
}
},
// Adjustments after slide content has been loaded
// ===============================================
afterLoad: function(slide) {
var self = this;
if (self.isClosing) {
return;
}
slide.isLoading = false;
slide.isLoaded = true;
self.trigger("afterLoad", slide);
self.hideLoading(slide);
if (slide.pos === self.currPos) {
self.updateCursor();
}
if (slide.opts.smallBtn && (!slide.$smallBtn || !slide.$smallBtn.length)) {
slide.$smallBtn = $(self.translate(slide, slide.opts.btnTpl.smallBtn)).prependTo(slide.$content);
}
if (slide.opts.protect && slide.$content && !slide.hasError) {
// Disable right click
slide.$content.on("contextmenu.fb", function(e) {
if (e.button == 2) {
e.preventDefault();
}
return true;
});
// Add fake element on top of the image
// This makes a bit harder for user to select image
if (slide.type === "image") {
$('<div class="fancybox-spaceball"></div>').appendTo(slide.$content);
}
}
self.revealContent(slide);
},
// Make content visible
// This method is called right after content has been loaded or
// user navigates gallery and transition should start
// ============================================================
revealContent: function(slide) {
var self = this,
$slide = slide.$slide,
end = false,
start = false,
effect,
effectClassName,
duration,
opacity;
effect = slide.opts[self.firstRun ? "animationEffect" : "transitionEffect"];
duration = slide.opts[self.firstRun ? "animationDuration" : "transitionDuration"];
duration = parseInt(slide.forcedDuration === undefined ? duration : slide.forcedDuration, 10);
// Do not animate if revealing the same slide
if (slide.pos === self.currPos) {
if (slide.isComplete) {
effect = false;
} else {
self.isAnimating = true;
}
}
if (slide.isMoved || slide.pos !== self.currPos || !duration) {
effect = false;
}
// Check if can zoom
if (effect === "zoom") {
if (slide.pos === self.currPos && duration && slide.type === "image" && !slide.hasError && (start = self.getThumbPos(slide))) {
end = self.getFitPos(slide);
} else {
effect = "fade";
}
}
// Zoom animation
// ==============
if (effect === "zoom") {
end.scaleX = end.width / start.width;
end.scaleY = end.height / start.height;
// Check if we need to animate opacity
opacity = slide.opts.zoomOpacity;
if (opacity == "auto") {
opacity = Math.abs(slide.width / slide.height - start.width / start.height) > 0.1;
}
if (opacity) {
start.opacity = 0.1;
end.opacity = 1;
}
// Draw image at start position
$.fancybox.setTranslate(slide.$content.removeClass("fancybox-is-hidden"), start);
forceRedraw(slide.$content);
// Start animation
$.fancybox.animate(slide.$content, end, duration, function() {
self.isAnimating = false;
self.complete();
});
return;
}
self.updateSlide(slide);
// Simply show content
// ===================
if (!effect) {
forceRedraw($slide);
slide.$content.removeClass("fancybox-is-hidden");
if (slide.pos === self.currPos) {
self.complete();
}
return;
}
$.fancybox.stop($slide);
effectClassName = "fancybox-animated fancybox-slide--" + (slide.pos >= self.prevPos ? "next" : "previous") + " fancybox-fx-" + effect;
$slide
.removeAttr("style")
.removeClass("fancybox-slide--current fancybox-slide--next fancybox-slide--previous")
.addClass(effectClassName);
slide.$content.removeClass("fancybox-is-hidden");
// Force reflow for CSS3 transitions
forceRedraw($slide);
$.fancybox.animate(
$slide,
"fancybox-slide--current",
duration,
function(e) {
$slide.removeClass(effectClassName).removeAttr("style");
if (slide.pos === self.currPos) {
self.complete();
}
},
true
);
},
// Check if we can and have to zoom from thumbnail
//================================================
getThumbPos: function(slide) {
var self = this,
rez = false,
$thumb = slide.opts.$thumb,
thumbPos = $thumb && $thumb.length && $thumb[0].ownerDocument === document ? $thumb.offset() : 0,
slidePos;
// Check if element is inside the viewport by at least 1 pixel
var isElementVisible = function($el) {
var element = $el[0],
elementRect = element.getBoundingClientRect(),
parentRects = [],
visibleInAllParents;
while (element.parentElement !== null) {
if ($(element.parentElement).css("overflow") === "hidden" || $(element.parentElement).css("overflow") === "auto") {
parentRects.push(element.parentElement.getBoundingClientRect());
}
element = element.parentElement;
}
visibleInAllParents = parentRects.every(function(parentRect) {
var visiblePixelX = Math.min(elementRect.right, parentRect.right) - Math.max(elementRect.left, parentRect.left);
var visiblePixelY = Math.min(elementRect.bottom, parentRect.bottom) - Math.max(elementRect.top, parentRect.top);
return visiblePixelX > 0 && visiblePixelY > 0;
});
return (
visibleInAllParents &&
elementRect.bottom > 0 &&
elementRect.right > 0 &&
elementRect.left < $(window).width() &&
elementRect.top < $(window).height()
);
};
if (thumbPos && isElementVisible($thumb)) {
slidePos = self.$refs.stage.offset();
rez = {
top: thumbPos.top - slidePos.top + parseFloat($thumb.css("border-top-width") || 0),
left: thumbPos.left - slidePos.left + parseFloat($thumb.css("border-left-width") || 0),
width: $thumb.width(),
height: $thumb.height(),
scaleX: 1,
scaleY: 1
};
}
return rez;
},
// Final adjustments after current gallery item is moved to position
// and it`s content is loaded
// ==================================================================
complete: function() {
var self = this,
current = self.current,
slides = {};
if (current.isMoved || !current.isLoaded) {
return;
}
if (!current.isComplete) {
current.isComplete = true;
current.$slide.siblings().trigger("onReset");
self.preload("inline");
// Trigger any CSS3 transiton inside the slide
forceRedraw(current.$slide);
current.$slide.addClass("fancybox-slide--complete");
// Remove unnecessary slides
$.each(self.slides, function(key, slide) {
if (slide.pos >= self.currPos - 1 && slide.pos <= self.currPos + 1) {
slides[slide.pos] = slide;
} else if (slide) {
$.fancybox.stop(slide.$slide);
slide.$slide.off().remove();
}
});
self.slides = slides;
}
self.isAnimating = false;
self.updateCursor();
self.trigger("afterShow");
// Play first html5 video/audio
current.$slide
.find("video,audio")
.filter(":visible:first")
.trigger("play");
// Try to focus on the first focusable element
if (
$(document.activeElement).is("[disabled]") ||
(current.opts.autoFocus && !(current.type == "image" || current.type === "iframe"))
) {
self.focus();
}
},
// Preload next and previous slides
// ================================
preload: function(type) {
var self = this,
next = self.slides[self.currPos + 1],
prev = self.slides[self.currPos - 1];
if (next && next.type === type) {
self.loadSlide(next);
}
if (prev && prev.type === type) {
self.loadSlide(prev);
}
},
// Try to find and focus on the first focusable element
// ====================================================
focus: function() {
var current = this.current,
$el;
if (this.isClosing) {
return;
}
if (current && current.isComplete && current.$content) {
// Look for first input with autofocus attribute
$el = current.$content.find("input[autofocus]:enabled:visible:first");
if (!$el.length) {
$el = current.$content.find("button,:input,[tabindex],a").filter(":enabled:visible:first");
}
$el = $el && $el.length ? $el : current.$content;
$el.trigger("focus");
}
},
// Activates current instance - brings container to the front and enables keyboard,
// notifies other instances about deactivating
// =================================================================================
activate: function() {
var self = this;
// Deactivate all instances
$(".fancybox-container").each(function() {
var instance = $(this).data("FancyBox");
// Skip self and closing instances
if (instance && instance.id !== self.id && !instance.isClosing) {
instance.trigger("onDeactivate");
instance.removeEvents();
instance.isVisible = false;
}
});
self.isVisible = true;
if (self.current || self.isIdle) {
self.update();
self.updateControls();
}
self.trigger("onActivate");
self.addEvents();
},
// Start closing procedure
// This will start "zoom-out" animation if needed and clean everything up afterwards
// =================================================================================
close: function(e, d) {
var self = this,
current = self.current,
effect,
duration,
$content,
domRect,
opacity,
start,
end;
var done = function() {
self.cleanUp(e);
};
if (self.isClosing) {
return false;
}
self.isClosing = true;
// If beforeClose callback prevents closing, make sure content is centered
if (self.trigger("beforeClose", e) === false) {
self.isClosing = false;
requestAFrame(function() {
self.update();
});
return false;
}
// Remove all events
// If there are multiple instances, they will be set again by "activate" method
self.removeEvents();
if (current.timouts) {
clearTimeout(current.timouts);
}
$content = current.$content;
effect = current.opts.animationEffect;
duration = $.isNumeric(d) ? d : effect ? current.opts.animationDuration : 0;
// Remove other slides
current.$slide
.off(transitionEnd)
.removeClass("fancybox-slide--complete fancybox-slide--next fancybox-slide--previous fancybox-animated");
current.$slide
.siblings()
.trigger("onReset")
.remove();
// Trigger animations
if (duration) {
self.$refs.container.removeClass("fancybox-is-open").addClass("fancybox-is-closing");
}
// Clean up
self.hideLoading(current);
self.hideControls();
self.updateCursor();
// Check if possible to zoom-out
if (
effect === "zoom" &&
!(e !== true && $content && duration && current.type === "image" && !current.hasError && (end = self.getThumbPos(current)))
) {
effect = "fade";
}
if (effect === "zoom") {
$.fancybox.stop($content);
domRect = $.fancybox.getTranslate($content);
start = {
top: domRect.top,
left: domRect.left,
scaleX: domRect.width / end.width,
scaleY: domRect.height / end.height,
width: end.width,
height: end.height
};
// Check if we need to animate opacity
opacity = current.opts.zoomOpacity;
if (opacity == "auto") {
opacity = Math.abs(current.width / current.height - end.width / end.height) > 0.1;
}
if (opacity) {
end.opacity = 0;
}
$.fancybox.setTranslate($content, start);
forceRedraw($content);
$.fancybox.animate($content, end, duration, done);
return true;
}
if (effect && duration) {
// If skip animation
if (e === true) {
setTimeout(done, duration);
} else {
$.fancybox.animate(
current.$slide.removeClass("fancybox-slide--current"),
"fancybox-animated fancybox-slide--previous fancybox-fx-" + effect,
duration,
done
);
}
} else {
done();
}
return true;
},
// Final adjustments after removing the instance
// =============================================
cleanUp: function(e) {
var self = this,
$body = $("body"),
instance,
scrollTop;
self.current.$slide.trigger("onReset");
self.$refs.container.empty().remove();
self.trigger("afterClose", e);
// Place back focus
if (self.$lastFocus && !!self.current.opts.backFocus) {
self.$lastFocus.trigger("focus");
}
self.current = null;
// Check if there are other instances
instance = $.fancybox.getInstance();
if (instance) {
instance.activate();
} else {
$body.removeClass("fancybox-active compensate-for-scrollbar");
$("#fancybox-style-noscroll").remove();
}
},
// Call callback and trigger an event
// ==================================
trigger: function(name, slide) {
var args = Array.prototype.slice.call(arguments, 1),
self = this,
obj = slide && slide.opts ? slide : self.current,
rez;
if (obj) {
args.unshift(obj);
} else {
obj = self;
}
args.unshift(self);
if ($.isFunction(obj.opts[name])) {
rez = obj.opts[name].apply(obj, args);
}
if (rez === false) {
return rez;
}
if (name === "afterClose" || !self.$refs) {
$D.trigger(name + ".fb", args);
} else {
self.$refs.container.trigger(name + ".fb", args);
}
},
// Update infobar values, navigation button states and reveal caption
// ==================================================================
updateControls: function(force) {
var self = this,
current = self.current,
index = current.index,
caption = current.opts.caption,
$container = self.$refs.container,
$caption = self.$refs.caption;
// Recalculate content dimensions
current.$slide.trigger("refresh");
self.$caption = caption && caption.length ? $caption.html(caption) : null;
if (!self.isHiddenControls && !self.isIdle) {
self.showControls();
}
// Update info and navigation elements
$container.find("[data-fancybox-count]").html(self.group.length);
$container.find("[data-fancybox-index]").html(index + 1);
$container.find("[data-fancybox-prev]").toggleClass("disabled", !current.opts.loop && index <= 0);
$container.find("[data-fancybox-next]").toggleClass("disabled", !current.opts.loop && index >= self.group.length - 1);
if (current.type === "image") {
// Re-enable buttons; update download button source
$container
.find("[data-fancybox-zoom]")
.show()
.end()
.find("[data-fancybox-download]")
.attr("href", current.opts.image.src || current.src)
.show();
} else if (current.opts.toolbar) {
$container.find("[data-fancybox-download],[data-fancybox-zoom]").hide();
}
},
// Hide toolbar and caption
// ========================
hideControls: function() {
this.isHiddenControls = true;
this.$refs.container.removeClass("fancybox-show-infobar fancybox-show-toolbar fancybox-show-caption fancybox-show-nav");
},
showControls: function() {
var self = this,
opts = self.current ? self.current.opts : self.opts,
$container = self.$refs.container;
self.isHiddenControls = false;
self.idleSecondsCounter = 0;
$container
.toggleClass("fancybox-show-toolbar", !!(opts.toolbar && opts.buttons))
.toggleClass("fancybox-show-infobar", !!(opts.infobar && self.group.length > 1))
.toggleClass("fancybox-show-nav", !!(opts.arrows && self.group.length > 1))
.toggleClass("fancybox-is-modal", !!opts.modal);
if (self.$caption) {
$container.addClass("fancybox-show-caption ");
} else {
$container.removeClass("fancybox-show-caption");
}
},
// Toggle toolbar and caption
// ==========================
toggleControls: function() {
if (this.isHiddenControls) {
this.showControls();
} else {
this.hideControls();
}
}
});
$.fancybox = {
version: "{fancybox-version}",
defaults: defaults,
// Get current instance and execute a command.
//
// Examples of usage:
//
// $instance = $.fancybox.getInstance();
// $.fancybox.getInstance().jumpTo( 1 );
// $.fancybox.getInstance( 'jumpTo', 1 );
// $.fancybox.getInstance( function() {
// console.info( this.currIndex );
// });
// ======================================================
getInstance: function(command) {
var instance = $('.fancybox-container:not(".fancybox-is-closing"):last').data("FancyBox"),
args = Array.prototype.slice.call(arguments, 1);
if (instance instanceof FancyBox) {
if ($.type(command) === "string") {
instance[command].apply(instance, args);
} else if ($.type(command) === "function") {
command.apply(instance, args);
}
return instance;
}
return false;
},
// Create new instance
// ===================
open: function(items, opts, index) {
return new FancyBox(items, opts, index);
},
// Close current or all instances
// ==============================
close: function(all) {
var instance = this.getInstance();
if (instance) {
instance.close();
// Try to find and close next instance
if (all === true) {
this.close();
}
}
},
// Close all instances and unbind all events
// =========================================
destroy: function() {
this.close(true);
$D.add("body").off("click.fb-start", "**");
},
// Try to detect mobile devices
// ============================
isMobile:
document.createTouch !== undefined && /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent),
// Detect if 'translate3d' support is available
// ============================================
use3d: (function() {
var div = document.createElement("div");
return (
window.getComputedStyle &&
window.getComputedStyle(div) &&
window.getComputedStyle(div).getPropertyValue("transform") &&
!(document.documentMode && document.documentMode < 11)
);
})(),
// Helper function to get current visual state of an element
// returns array[ top, left, horizontal-scale, vertical-scale, opacity ]
// =====================================================================
getTranslate: function($el) {
var domRect;
if (!$el || !$el.length) {
return false;
}
domRect = $el[0].getBoundingClientRect();
return {
top: domRect.top || 0,
left: domRect.left || 0,
width: domRect.width,
height: domRect.height,
opacity: parseFloat($el.css("opacity"))
};
},
// Shortcut for setting "translate3d" properties for element
// Can set be used to set opacity, too
// ========================================================
setTranslate: function($el, props) {
var str = "",
css = {};
if (!$el || !props) {
return;
}
if (props.left !== undefined || props.top !== undefined) {
str =
(props.left === undefined ? $el.position().left : props.left) +
"px, " +
(props.top === undefined ? $el.position().top : props.top) +
"px";
if (this.use3d) {
str = "translate3d(" + str + ", 0px)";
} else {
str = "translate(" + str + ")";
}
}
if (props.scaleX !== undefined && props.scaleY !== undefined) {
str = (str.length ? str + " " : "") + "scale(" + props.scaleX + ", " + props.scaleY + ")";
}
if (str.length) {
css.transform = str;
}
if (props.opacity !== undefined) {
css.opacity = props.opacity;
}
if (props.width !== undefined) {
css.width = props.width;
}
if (props.height !== undefined) {
css.height = props.height;
}
return $el.css(css);
},
// Simple CSS transition handler
// =============================
animate: function($el, to, duration, callback, leaveAnimationName) {
var final = false;
if ($.isFunction(duration)) {
callback = duration;
duration = null;
}
if (!$.isPlainObject(to)) {
$el.removeAttr("style");
}
$.fancybox.stop($el);
$el.on(transitionEnd, function(e) {
// Skip events from child elements and z-index change
if (e && e.originalEvent && (!$el.is(e.originalEvent.target) || e.originalEvent.propertyName == "z-index")) {
return;
}
$.fancybox.stop($el);
if (final) {
$.fancybox.setTranslate($el, final);
}
if ($.isPlainObject(to)) {
if (leaveAnimationName === false) {
$el.removeAttr("style");
}
} else if (leaveAnimationName !== true) {
$el.removeClass(to);
}
if ($.isFunction(callback)) {
callback(e);
}
});
if ($.isNumeric(duration)) {
$el.css("transition-duration", duration + "ms");
}
// Start animation by changing CSS properties or class name
if ($.isPlainObject(to)) {
if (to.scaleX !== undefined && to.scaleY !== undefined) {
final = $.extend({}, to, {
width: $el.width() * to.scaleX,
height: $el.height() * to.scaleY,
scaleX: 1,
scaleY: 1
});
delete to.width;
delete to.height;
if ($el.parent().hasClass("fancybox-slide--image")) {
$el.parent().addClass("fancybox-is-scaling");
}
}
$.fancybox.setTranslate($el, to);
} else {
$el.addClass(to);
}
// Make sure that `transitionend` callback gets fired
$el.data(
"timer",
setTimeout(function() {
$el.trigger("transitionend");
}, duration + 16)
);
},
stop: function($el) {
if ($el && $el.length) {
clearTimeout($el.data("timer"));
$el.off("transitionend").css("transition-duration", "");
$el.parent().removeClass("fancybox-is-scaling");
}
}
};
// Default click handler for "fancyboxed" links
// ============================================
function _run(e, opts) {
var items = [],
index = 0,
$target,
value;
// Avoid opening multiple times
if (e && e.isDefaultPrevented()) {
return;
}
e.preventDefault();
opts = e && e.data ? e.data.options : opts || {};
$target = opts.$target || $(e.currentTarget);
value = $target.attr("data-fancybox") || "";
// Get all related items and find index for clicked one
if (value) {
items = opts.selector ? $(opts.selector) : e.data ? e.data.items : [];
items = items.length ? items.filter('[data-fancybox="' + value + '"]') : $('[data-fancybox="' + value + '"]');
index = items.index($target);
// Sometimes current item can not be found (for example, if some script clones items)
if (index < 0) {
index = 0;
}
} else {
items = [$target];
}
$.fancybox.open(items, opts, index);
}
// Create a jQuery plugin
// ======================
$.fn.fancybox = function(options) {
var selector;
options = options || {};
selector = options.selector || false;
if (selector) {
// Use body element instead of document so it executes first
$("body")
.off("click.fb-start", selector)
.on("click.fb-start", selector, {options: options}, _run);
} else {
this.off("click.fb-start").on(
"click.fb-start",
{
items: this,
options: options
},
_run
);
}
return this;
};
// Self initializing plugin for all elements having `data-fancybox` attribute
// ==========================================================================
$D.on("click.fb-start", "[data-fancybox]", _run);
// Enable "trigger elements"
// =========================
$D.on("click.fb-start", "[data-trigger]", function(e) {
_run(e, {
$target: $('[data-fancybox="' + $(e.currentTarget).attr("data-trigger") + '"]').eq($(e.currentTarget).attr("data-index") || 0),
$trigger: $(this)
});
});
})(window, document, window.jQuery || jQuery);
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