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/*! PhotoSwipe Default UI - 4.1.3 - 2019-01-08
* http://photoswipe.com
* Copyright (c) 2019 Dmitry Semenov; */
/**
*
* UI on top of main sliding area (caption, arrows, close button, etc.).
* Built just using public methods/properties of PhotoSwipe.
*
*/
(function(root, factory) {
if (typeof define === "function" && define.amd) {
define(factory);
} else if (typeof exports === "object") {
module.exports = factory();
} else {
root.PhotoSwipeUI_Default = factory();
}
})(this, function() {
"use strict";
var PhotoSwipeUI_Default = function(pswp, framework) {
var ui = this;
var _overlayUIUpdated = false,
_controlsVisible = true,
_fullscrenAPI,
_controls,
_captionContainer,
_fakeCaptionContainer,
_indexIndicator,
_shareButton,
_shareModal,
_shareModalHidden = true,
_initalCloseOnScrollValue,
_isIdle,
_listen,
_loadingIndicator,
_loadingIndicatorHidden,
_loadingIndicatorTimeout,
_galleryHasOneSlide,
_options,
_defaultUIOptions = {
barsSize: { top: 44, bottom: "auto" },
closeElClasses: ["item", "caption", "zoom-wrap", "ui", "top-bar"],
timeToIdle: 4000,
timeToIdleOutside: 1000,
loadingIndicatorDelay: 1000, // 2s
addCaptionHTMLFn: function(item, captionEl /*, isFake */) {
if (!item.title) {
captionEl.children[0].innerHTML = "";
return false;
}
captionEl.children[0].innerHTML = item.title;
return true;
},
closeEl: true,
captionEl: true,
fullscreenEl: true,
zoomEl: true,
shareEl: true,
counterEl: true,
arrowEl: true,
preloaderEl: true,
tapToClose: false,
tapToToggleControls: true,
clickToCloseNonZoomable: true,
shareButtons: [
{
id: "facebook",
label: "Share on Facebook",
url: "https://www.facebook.com/sharer/sharer.php?u={{url}}"
},
{
id: "twitter",
label: "Tweet",
url: "https://twitter.com/intent/tweet?text={{text}}&url={{url}}"
},
{
id: "pinterest",
label: "Pin it",
url:
"http://www.pinterest.com/pin/create/button/" +
"?url={{url}}&media={{image_url}}&description={{text}}"
},
{
id: "download",
label: "Download image",
url: "{{raw_image_url}}",
download: true
}
],
getImageURLForShare: function(/* shareButtonData */) {
return pswp.currItem.src || "";
},
getPageURLForShare: function(/* shareButtonData */) {
return window.location.href;
},
getTextForShare: function(/* shareButtonData */) {
return pswp.currItem.title || "";
},
indexIndicatorSep: " / ",
fitControlsWidth: 1200
},
_blockControlsTap,
_blockControlsTapTimeout;
var _onControlsTap = function(e) {
if (_blockControlsTap) {
return true;
}
e = e || window.event;
if (_options.timeToIdle && _options.mouseUsed && !_isIdle) {
// reset idle timer
_onIdleMouseMove();
}
var target = e.target || e.srcElement,
uiElement,
clickedClass = target.getAttribute("class") || "",
found;
for (var i = 0; i < _uiElements.length; i++) {
uiElement = _uiElements[i];
if (
uiElement.onTap &&
clickedClass.indexOf("pswp__" + uiElement.name) > -1
) {
uiElement.onTap();
found = true;
}
}
if (found) {
if (e.stopPropagation) {
e.stopPropagation();
}
_blockControlsTap = true;
// Some versions of Android don't prevent ghost click event
// when preventDefault() was called on touchstart and/or touchend.
//
// This happens on v4.3, 4.2, 4.1,
// older versions strangely work correctly,
// but just in case we add delay on all of them)
var tapDelay = framework.features.isOldAndroid ? 600 : 30;
_blockControlsTapTimeout = setTimeout(function() {
_blockControlsTap = false;
}, tapDelay);
}
},
_fitControlsInViewport = function() {
return (
!pswp.likelyTouchDevice ||
_options.mouseUsed ||
screen.width > _options.fitControlsWidth
);
},
_togglePswpClass = function(el, cName, add) {
framework[(add ? "add" : "remove") + "Class"](el, "pswp__" + cName);
},
// add class when there is just one item in the gallery
// (by default it hides left/right arrows and 1ofX counter)
_countNumItems = function() {
var hasOneSlide = _options.getNumItemsFn() === 1;
if (hasOneSlide !== _galleryHasOneSlide) {
_togglePswpClass(_controls, "ui--one-slide", hasOneSlide);
_galleryHasOneSlide = hasOneSlide;
}
},
_toggleShareModalClass = function() {
_togglePswpClass(_shareModal, "share-modal--hidden", _shareModalHidden);
},
_toggleShareModal = function() {
_shareModalHidden = !_shareModalHidden;
if (!_shareModalHidden) {
_toggleShareModalClass();
setTimeout(function() {
if (!_shareModalHidden) {
framework.addClass(_shareModal, "pswp__share-modal--fade-in");
}
}, 30);
} else {
framework.removeClass(_shareModal, "pswp__share-modal--fade-in");
setTimeout(function() {
if (_shareModalHidden) {
_toggleShareModalClass();
}
}, 300);
}
if (!_shareModalHidden) {
_updateShareURLs();
}
return false;
},
_openWindowPopup = function(e) {
e = e || window.event;
var target = e.target || e.srcElement;
pswp.shout("shareLinkClick", e, target);
if (!target.href) {
return false;
}
if (target.hasAttribute("download")) {
return true;
}
window.open(
target.href,
"pswp_share",
"scrollbars=yes,resizable=yes,toolbar=no," +
"location=yes,width=550,height=420,top=100,left=" +
(window.screen ? Math.round(screen.width / 2 - 275) : 100)
);
if (!_shareModalHidden) {
_toggleShareModal();
}
return false;
},
_updateShareURLs = function() {
var shareButtonOut = "",
shareButtonData,
shareURL,
image_url,
page_url,
share_text;
for (var i = 0; i < _options.shareButtons.length; i++) {
shareButtonData = _options.shareButtons[i];
image_url = _options.getImageURLForShare(shareButtonData);
page_url = _options.getPageURLForShare(shareButtonData);
share_text = _options.getTextForShare(shareButtonData);
shareURL = shareButtonData.url
.replace("{{url}}", encodeURIComponent(page_url))
.replace("{{image_url}}", encodeURIComponent(image_url))
.replace("{{raw_image_url}}", image_url)
.replace("{{text}}", encodeURIComponent(share_text));
shareButtonOut +=
'<a href="' +
shareURL +
'" target="_blank" ' +
'class="pswp__share--' +
shareButtonData.id +
'"' +
(shareButtonData.download ? "download" : "") +
">" +
shareButtonData.label +
"</a>";
if (_options.parseShareButtonOut) {
shareButtonOut = _options.parseShareButtonOut(
shareButtonData,
shareButtonOut
);
}
}
_shareModal.children[0].innerHTML = shareButtonOut;
_shareModal.children[0].onclick = _openWindowPopup;
},
_hasCloseClass = function(target) {
for (var i = 0; i < _options.closeElClasses.length; i++) {
if (
framework.hasClass(target, "pswp__" + _options.closeElClasses[i])
) {
return true;
}
}
},
_idleInterval,
_idleTimer,
_idleIncrement = 0,
_onIdleMouseMove = function() {
clearTimeout(_idleTimer);
_idleIncrement = 0;
if (_isIdle) {
ui.setIdle(false);
}
},
_onMouseLeaveWindow = function(e) {
e = e ? e : window.event;
var from = e.relatedTarget || e.toElement;
if (!from || from.nodeName === "HTML") {
clearTimeout(_idleTimer);
_idleTimer = setTimeout(function() {
ui.setIdle(true);
}, _options.timeToIdleOutside);
}
},
_setupFullscreenAPI = function() {
if (_options.fullscreenEl && !framework.features.isOldAndroid) {
if (!_fullscrenAPI) {
_fullscrenAPI = ui.getFullscreenAPI();
}
if (_fullscrenAPI) {
framework.bind(document, _fullscrenAPI.eventK, ui.updateFullscreen);
ui.updateFullscreen();
framework.addClass(pswp.template, "pswp--supports-fs");
} else {
framework.removeClass(pswp.template, "pswp--supports-fs");
}
}
},
_setupLoadingIndicator = function() {
// Setup loading indicator
if (_options.preloaderEl) {
_toggleLoadingIndicator(true);
_listen("beforeChange", function() {
clearTimeout(_loadingIndicatorTimeout);
// display loading indicator with delay
_loadingIndicatorTimeout = setTimeout(function() {
if (pswp.currItem && pswp.currItem.loading) {
if (
!pswp.allowProgressiveImg() ||
(pswp.currItem.img && !pswp.currItem.img.naturalWidth)
) {
// show preloader if progressive loading is not enabled,
// or image width is not defined yet (because of slow connection)
_toggleLoadingIndicator(false);
// items-controller.js function allowProgressiveImg
}
} else {
_toggleLoadingIndicator(true); // hide preloader
}
}, _options.loadingIndicatorDelay);
});
_listen("imageLoadComplete", function(index, item) {
if (pswp.currItem === item) {
_toggleLoadingIndicator(true);
}
});
}
},
_toggleLoadingIndicator = function(hide) {
if (_loadingIndicatorHidden !== hide) {
_togglePswpClass(_loadingIndicator, "preloader--active", !hide);
_loadingIndicatorHidden = hide;
}
},
_applyNavBarGaps = function(item) {
var gap = item.vGap;
if (_fitControlsInViewport()) {
var bars = _options.barsSize;
if (_options.captionEl && bars.bottom === "auto") {
if (!_fakeCaptionContainer) {
_fakeCaptionContainer = framework.createEl(
"pswp__caption pswp__caption--fake"
);
_fakeCaptionContainer.appendChild(
framework.createEl("pswp__caption__center")
);
_controls.insertBefore(_fakeCaptionContainer, _captionContainer);
framework.addClass(_controls, "pswp__ui--fit");
}
if (_options.addCaptionHTMLFn(item, _fakeCaptionContainer, true)) {
var captionSize = _fakeCaptionContainer.clientHeight;
gap.bottom = parseInt(captionSize, 10) || 44;
} else {
gap.bottom = bars.top; // if no caption, set size of bottom gap to size of top
}
} else {
gap.bottom = bars.bottom === "auto" ? 0 : bars.bottom;
}
// height of top bar is static, no need to calculate it
gap.top = bars.top;
} else {
gap.top = gap.bottom = 0;
}
},
_setupIdle = function() {
// Hide controls when mouse is used
if (_options.timeToIdle) {
_listen("mouseUsed", function() {
framework.bind(document, "mousemove", _onIdleMouseMove);
framework.bind(document, "mouseout", _onMouseLeaveWindow);
_idleInterval = setInterval(function() {
_idleIncrement++;
if (_idleIncrement === 2) {
ui.setIdle(true);
}
}, _options.timeToIdle / 2);
});
}
},
_setupHidingControlsDuringGestures = function() {
// Hide controls on vertical drag
_listen("onVerticalDrag", function(now) {
if (_controlsVisible && now < 0.95) {
ui.hideControls();
} else if (!_controlsVisible && now >= 0.95) {
ui.showControls();
}
});
// Hide controls when pinching to close
var pinchControlsHidden;
_listen("onPinchClose", function(now) {
if (_controlsVisible && now < 0.9) {
ui.hideControls();
pinchControlsHidden = true;
} else if (pinchControlsHidden && !_controlsVisible && now > 0.9) {
ui.showControls();
}
});
_listen("zoomGestureEnded", function() {
pinchControlsHidden = false;
if (pinchControlsHidden && !_controlsVisible) {
ui.showControls();
}
});
};
var _uiElements = [
{
name: "caption",
option: "captionEl",
onInit: function(el) {
_captionContainer = el;
}
},
{
name: "share-modal",
option: "shareEl",
onInit: function(el) {
_shareModal = el;
},
onTap: function() {
_toggleShareModal();
}
},
{
name: "button--share",
option: "shareEl",
onInit: function(el) {
_shareButton = el;
},
onTap: function() {
_toggleShareModal();
}
},
{
name: "button--zoom",
option: "zoomEl",
onTap: pswp.toggleDesktopZoom
},
{
name: "counter",
option: "counterEl",
onInit: function(el) {
_indexIndicator = el;
}
},
{
name: "button--close",
option: "closeEl",
onTap: pswp.close
},
{
name: "button--arrow--left",
option: "arrowEl",
onTap: pswp.prev
},
{
name: "button--arrow--right",
option: "arrowEl",
onTap: pswp.next
},
{
name: "button--fs",
option: "fullscreenEl",
onTap: function() {
if (_fullscrenAPI.isFullscreen()) {
_fullscrenAPI.exit();
} else {
_fullscrenAPI.enter();
}
}
},
{
name: "preloader",
option: "preloaderEl",
onInit: function(el) {
_loadingIndicator = el;
}
}
];
var _setupUIElements = function() {
var item, classAttr, uiElement;
var loopThroughChildElements = function(sChildren) {
if (!sChildren) {
return;
}
var l = sChildren.length;
for (var i = 0; i < l; i++) {
item = sChildren[i];
classAttr = item.className;
for (var a = 0; a < _uiElements.length; a++) {
uiElement = _uiElements[a];
if (classAttr.indexOf("pswp__" + uiElement.name) > -1) {
if (_options[uiElement.option]) {
// if element is not disabled from options
framework.removeClass(item, "pswp__element--disabled");
if (uiElement.onInit) {
uiElement.onInit(item);
}
//item.style.display = 'block';
} else {
framework.addClass(item, "pswp__element--disabled");
//item.style.display = 'none';
}
}
}
}
};
loopThroughChildElements(_controls.children);
var topBar = framework.getChildByClass(_controls, "pswp__top-bar");
if (topBar) {
loopThroughChildElements(topBar.children);
}
};
ui.init = function() {
// extend options
framework.extend(pswp.options, _defaultUIOptions, true);
// create local link for fast access
_options = pswp.options;
// find pswp__ui element
_controls = framework.getChildByClass(pswp.scrollWrap, "pswp__ui");
// create local link
_listen = pswp.listen;
_setupHidingControlsDuringGestures();
// update controls when slides change
_listen("beforeChange", ui.update);
// toggle zoom on double-tap
_listen("doubleTap", function(point) {
var initialZoomLevel = pswp.currItem.initialZoomLevel;
if (pswp.getZoomLevel() !== initialZoomLevel) {
pswp.zoomTo(initialZoomLevel, point, 333);
} else {
pswp.zoomTo(
_options.getDoubleTapZoom(false, pswp.currItem),
point,
333
);
}
});
// Allow text selection in caption
_listen("preventDragEvent", function(e, isDown, preventObj) {
var t = e.target || e.srcElement;
if (
t &&
t.getAttribute("class") &&
e.type.indexOf("mouse") > -1 &&
(t.getAttribute("class").indexOf("__caption") > 0 ||
/(SMALL|STRONG|EM)/i.test(t.tagName))
) {
preventObj.prevent = false;
}
});
// bind events for UI
_listen("bindEvents", function() {
framework.bind(_controls, "pswpTap click", _onControlsTap);
framework.bind(pswp.scrollWrap, "pswpTap", ui.onGlobalTap);
if (!pswp.likelyTouchDevice) {
framework.bind(pswp.scrollWrap, "mouseover", ui.onMouseOver);
}
});
// unbind events for UI
_listen("unbindEvents", function() {
if (!_shareModalHidden) {
_toggleShareModal();
}
if (_idleInterval) {
clearInterval(_idleInterval);
}
framework.unbind(document, "mouseout", _onMouseLeaveWindow);
framework.unbind(document, "mousemove", _onIdleMouseMove);
framework.unbind(_controls, "pswpTap click", _onControlsTap);
framework.unbind(pswp.scrollWrap, "pswpTap", ui.onGlobalTap);
framework.unbind(pswp.scrollWrap, "mouseover", ui.onMouseOver);
if (_fullscrenAPI) {
framework.unbind(document, _fullscrenAPI.eventK, ui.updateFullscreen);
if (_fullscrenAPI.isFullscreen()) {
_options.hideAnimationDuration = 0;
_fullscrenAPI.exit();
}
_fullscrenAPI = null;
}
});
// clean up things when gallery is destroyed
_listen("destroy", function() {
if (_options.captionEl) {
if (_fakeCaptionContainer) {
_controls.removeChild(_fakeCaptionContainer);
}
framework.removeClass(_captionContainer, "pswp__caption--empty");
}
if (_shareModal) {
_shareModal.children[0].onclick = null;
}
framework.removeClass(_controls, "pswp__ui--over-close");
framework.addClass(_controls, "pswp__ui--hidden");
ui.setIdle(false);
});
if (!_options.showAnimationDuration) {
framework.removeClass(_controls, "pswp__ui--hidden");
}
_listen("initialZoomIn", function() {
if (_options.showAnimationDuration) {
framework.removeClass(_controls, "pswp__ui--hidden");
}
});
_listen("initialZoomOut", function() {
framework.addClass(_controls, "pswp__ui--hidden");
});
_listen("parseVerticalMargin", _applyNavBarGaps);
_setupUIElements();
if (_options.shareEl && _shareButton && _shareModal) {
_shareModalHidden = true;
}
_countNumItems();
_setupIdle();
_setupFullscreenAPI();
_setupLoadingIndicator();
};
ui.setIdle = function(isIdle) {
_isIdle = isIdle;
_togglePswpClass(_controls, "ui--idle", isIdle);
};
ui.update = function() {
// Don't update UI if it's hidden
if (_controlsVisible && pswp.currItem) {
ui.updateIndexIndicator();
if (_options.captionEl) {
_options.addCaptionHTMLFn(pswp.currItem, _captionContainer);
_togglePswpClass(
_captionContainer,
"caption--empty",
!pswp.currItem.title
);
}
_overlayUIUpdated = true;
} else {
_overlayUIUpdated = false;
}
if (!_shareModalHidden) {
_toggleShareModal();
}
_countNumItems();
};
ui.updateFullscreen = function(e) {
if (e) {
// some browsers change window scroll position during the fullscreen
// so PhotoSwipe updates it just in case
setTimeout(function() {
pswp.setScrollOffset(0, framework.getScrollY());
}, 50);
}
// toogle pswp--fs class on root element
framework[(_fullscrenAPI.isFullscreen() ? "add" : "remove") + "Class"](
pswp.template,
"pswp--fs"
);
};
ui.updateIndexIndicator = function() {
if (_options.counterEl) {
_indexIndicator.innerHTML =
pswp.getCurrentIndex() +
1 +
_options.indexIndicatorSep +
_options.getNumItemsFn();
}
};
ui.onGlobalTap = function(e) {
e = e || window.event;
var target = e.target || e.srcElement;
if (_blockControlsTap) {
return;
}
if (e.detail && e.detail.pointerType === "mouse") {
// close gallery if clicked outside of the image
if (_hasCloseClass(target)) {
pswp.close();
return;
}
if (framework.hasClass(target, "pswp__img")) {
if (
pswp.getZoomLevel() === 1 &&
pswp.getZoomLevel() <= pswp.currItem.fitRatio
) {
if (_options.clickToCloseNonZoomable) {
pswp.close();
}
} else {
pswp.toggleDesktopZoom(e.detail.releasePoint);
}
}
} else {
// tap anywhere (except buttons) to toggle visibility of controls
if (_options.tapToToggleControls) {
if (_controlsVisible) {
ui.hideControls();
} else {
ui.showControls();
}
}
// tap to close gallery
if (
_options.tapToClose &&
(framework.hasClass(target, "pswp__img") || _hasCloseClass(target))
) {
pswp.close();
return;
}
}
};
ui.onMouseOver = function(e) {
e = e || window.event;
var target = e.target || e.srcElement;
// add class when mouse is over an element that should close the gallery
_togglePswpClass(_controls, "ui--over-close", _hasCloseClass(target));
};
ui.hideControls = function() {
framework.addClass(_controls, "pswp__ui--hidden");
_controlsVisible = false;
};
ui.showControls = function() {
_controlsVisible = true;
if (!_overlayUIUpdated) {
ui.update();
}
framework.removeClass(_controls, "pswp__ui--hidden");
};
ui.supportsFullscreen = function() {
var d = document;
return !!(
d.exitFullscreen ||
d.mozCancelFullScreen ||
d.webkitExitFullscreen ||
d.msExitFullscreen
);
};
ui.getFullscreenAPI = function() {
var dE = document.documentElement,
api,
tF = "fullscreenchange";
if (dE.requestFullscreen) {
api = {
enterK: "requestFullscreen",
exitK: "exitFullscreen",
elementK: "fullscreenElement",
eventK: tF
};
} else if (dE.mozRequestFullScreen) {
api = {
enterK: "mozRequestFullScreen",
exitK: "mozCancelFullScreen",
elementK: "mozFullScreenElement",
eventK: "moz" + tF
};
} else if (dE.webkitRequestFullscreen) {
api = {
enterK: "webkitRequestFullscreen",
exitK: "webkitExitFullscreen",
elementK: "webkitFullscreenElement",
eventK: "webkit" + tF
};
} else if (dE.msRequestFullscreen) {
api = {
enterK: "msRequestFullscreen",
exitK: "msExitFullscreen",
elementK: "msFullscreenElement",
eventK: "MSFullscreenChange"
};
}
if (api) {
api.enter = function() {
// disable close-on-scroll in fullscreen
_initalCloseOnScrollValue = _options.closeOnScroll;
_options.closeOnScroll = false;
if (this.enterK === "webkitRequestFullscreen") {
pswp.template[this.enterK](Element.ALLOW_KEYBOARD_INPUT);
} else {
return pswp.template[this.enterK]();
}
};
api.exit = function() {
_options.closeOnScroll = _initalCloseOnScrollValue;
return document[this.exitK]();
};
api.isFullscreen = function() {
return document[this.elementK];
};
}
return api;
};
};
return PhotoSwipeUI_Default;
});