',
btnTpl: {
download:
'' +
'" +
"",
zoom:
'",
close:
'",
// This small close button will be appended to your html/inline/ajax content by default,
// if "smallBtn" option is not set to false
smallBtn:
'',
// Arrows
arrowLeft:
'' +
'" +
"",
arrowRight:
'' +
'" +
""
},
// 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. 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. 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 = $('').appendTo("body");
scrollbarWidth = $.fancybox.scrollbarWidth = $scrollDiv[0].offsetWidth - $scrollDiv[0].clientWidth;
$scrollDiv.remove();
}
$("head").append(
'"
);
$("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( '
Hi!
' );
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 = $('').appendTo(self.$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,
'