// source --> https://braustelle.com/wp-content/plugins/woocommerce-germanized/assets/js/static/unit-price-observer.js?ver=3.20.7
/*global wc_gzd_unit_price_observer_params, accounting */
;(function ( $, window, document, undefined ) {
var GermanizedUnitPriceObserver = function( $wrapper ) {
var self = this;
self.params = wc_gzd_unit_price_observer_params;
self.$wrapper = $wrapper.closest( self.params.wrapper );
self.$form = self.$wrapper.find( '.variations_form, .cart' ).length > 0 ? self.$wrapper.find( '.variations_form, .cart' ) : false;
self.isVar = self.$form ? self.$form.hasClass( 'variations_form' ) : false;
self.$product = self.$wrapper.closest( '.product' );
self.requests = [];
self.observer = {};
self.timeout = false;
self.priceData = false;
self.productId = 0;
if ( self.$wrapper.length <= 0 ) {
self.$wrapper = self.$product;
}
self.replacePrice = self.$wrapper.hasClass( 'bundled_product' ) ? false : self.params.replace_price;
if ( "MutationObserver" in window || "WebKitMutationObserver" in window || "MozMutationObserver" in window ) {
self.$wrapper.addClass( 'has-unit-price-observer' );
self.initObservers( self );
if ( self.isVar && self.$form ) {
self.productId = parseInt( self.$form.find( 'input[name=product_id]' ).length > 0 ? self.$form.find( 'input[name=product_id]' ).val() : self.$form.data( 'product_id' ) );
self.variationId = parseInt( self.$form.find( 'input[name=variation_id]' ).length > 0 ? self.$form.find( 'input[name=variation_id]' ).val() : 0 );
if ( self.$form.find( 'input[name=variation_id]' ).length <= 0 ) {
self.variationId = parseInt( self.$form.find( 'input.variation_id' ).length > 0 ? self.$form.find( 'input.variation_id' ).val() : 0 );
}
self.$form.on( 'reset_data.unit-price-observer', { GermanizedUnitPriceObserver: self }, self.onResetVariation );
self.$form.on( 'found_variation.unit-price-observer', { GermanizedUnitPriceObserver: self }, self.onFoundVariation );
} else {
if ( self.$form && self.$form.find( '*[name=add-to-cart][type=submit]' ).length > 0 ) {
self.productId = parseInt( self.$form.find( '*[name=add-to-cart][type=submit]' ).val() );
} else if ( self.$form && self.$form.data( 'product_id' ) ) {
self.productId = parseInt( self.$form.data( 'product_id' ) );
} else {
var classList = self.$product.attr( 'class' ).split( /\s+/ );
/**
* Check whether we may find the post/product by a class added by Woo, e.g. post-64
*/
$.each( classList, function( index, item ) {
if ( 'post-' === item.substring( 0, 5 ) ) {
var postId = parseInt( item.substring( 5 ).replace( /[^0-9]/g, '' ) );
if ( postId > 0 ) {
self.productId = postId;
return true;
}
}
});
/**
* Do only use the add to cart button attribute as fallback as there might be a lot of
* other product/add to cart buttons within a single product main product wrap (e.g. related products).
*/
if ( self.productId <= 0 && 1 === self.$product.find( 'a.ajax_add_to_cart[data-product_id], a.add_to_cart_button[data-product_id]' ).length ) {
self.productId = parseInt( self.$product.find( 'a.ajax_add_to_cart, a.add_to_cart_button' ).data( 'product_id' ) );
}
}
}
if ( self.productId <= 0 ) {
self.destroy( self );
return false;
}
if ( self.params.refresh_on_load ) {
$.each( self.params.price_selector, function( priceSelector, priceArgs ) {
var isPrimary = priceArgs.hasOwnProperty( 'is_primary_selector' ) ? priceArgs['is_primary_selector'] : false,
$price = self.getPriceNode( self, priceSelector, isPrimary ),
$unitPrice = self.getUnitPriceNode( self, $price );
/**
* Do only refresh primary price nodes on load.
*/
if ( ! isPrimary ) {
return;
}
if ( $unitPrice.length > 0 ) {
self.stopObserver( self, priceSelector );
self.setUnitPriceLoading( self, $unitPrice );
setTimeout( function() {
self.stopObserver( self, priceSelector );
var priceData = self.getCurrentPriceData( self, $price, priceArgs['is_total_price'], isPrimary, priceArgs['quantity_selector'] );
if ( priceData ) {
self.refreshUnitPrice( self, priceData, priceSelector, isPrimary );
} else if ( $unitPrice.length > 0 ) {
self.unsetUnitPriceLoading( self, $unitPrice );
}
self.startObserver( self, priceSelector, isPrimary );
}, 250 );
}
} );
}
}
$wrapper.data( 'unitPriceObserver', self );
};
GermanizedUnitPriceObserver.prototype.destroy = function( self ) {
self = self || this;
self.cancelObservers( self );
if ( self.$form ) {
self.$form.off( '.unit-price-observer' );
}
self.$wrapper.removeClass( 'has-unit-price-observer' );
};
GermanizedUnitPriceObserver.prototype.getTextWidth = function( $element ) {
var htmlOrg = $element.html();
var html_calc = '' + htmlOrg + '';
$element.html( html_calc );
var textWidth = $element.find( 'span:first' ).width();
$element.html( htmlOrg );
return textWidth;
};
GermanizedUnitPriceObserver.prototype.getPriceNode = function( self, priceSelector, isPrimarySelector, visibleOnly ) {
isPrimarySelector = ( typeof isPrimarySelector === 'undefined' ) ? false : isPrimarySelector;
visibleOnly = ( typeof visibleOnly === 'undefined' ) ? true : visibleOnly;
let visibleSelector = visibleOnly ? ':visible' : '';
var $node = self.$wrapper.find( priceSelector + ':not(.price-unit)' + visibleSelector ).not( '.variations_form .single_variation .price' ).first();
if ( isPrimarySelector && self.isVar && ( $node.length <= 0 || ! self.replacePrice ) ) {
$node = self.$wrapper.find( '.woocommerce-variation-price span.price:not(.price-unit):last' + visibleSelector );
} else if ( isPrimarySelector && $node.length <= 0 ) {
$node = self.$wrapper.find( '.price:not(.price-unit):last' + visibleSelector );
}
if ( $node.length <= 0 && self.$wrapper.hasClass( 'wc-block-product' ) ) {
$node = self.$wrapper.find( '.wc-block-grid__product-price' );
}
return $node;
};
GermanizedUnitPriceObserver.prototype.getObserverNode = function( self, priceSelector, isPrimarySelector ) {
var $node = self.getPriceNode( self, priceSelector, isPrimarySelector, false );
if ( isPrimarySelector && self.isVar && ! self.replacePrice ) {
$node = self.$wrapper.find( '.single_variation:last' );
}
return $node;
};
GermanizedUnitPriceObserver.prototype.getUnitPriceNode = function( self, $price ) {
if ( $price.length <= 0 ) {
return [];
}
var $element = [];
var isSingleProductBlock = $price.parents( '.wp-block-woocommerce-product-price[data-is-descendent-of-single-product-template]' ).length > 0;
var isProductGridBlock = self.$wrapper.hasClass( 'wc-block-product' );
if ( 'SPAN' === $price[0].tagName ) {
$element = self.$wrapper.find( '.price-unit' );
} else {
if ( isSingleProductBlock ) {
$element = self.$wrapper.find( '.wp-block-woocommerce-gzd-product-unit-price[data-is-descendent-of-single-product-template] .price-unit' );
} else if ( isProductGridBlock ) {
$element = self.$wrapper.find( '.price-unit:not(.wc-gzd-additional-info-placeholder)' );
} else {
$element = self.$wrapper.find( '.price-unit:not(.wc-gzd-additional-info-placeholder, .wc-gzd-additional-info-loop)' );
}
}
/**
* Check whether the unit price is empty - prevent refreshing empty prices.
*/
if ( $element.length > 0 ) {
if ( $element.is( ':empty' ) || $element.find( '.wc-gzd-additional-info-placeholder' ).is( ':empty' ) ) {
$element = [];
}
}
return $element;
};
GermanizedUnitPriceObserver.prototype.stopObserver = function( self, priceSelector ) {
var observer = self.getObserver( self, priceSelector );
if ( observer ) {
observer.disconnect();
}
};
GermanizedUnitPriceObserver.prototype.startObserver = function( self, priceSelector, isPrimary ) {
var observer = self.getObserver( self, priceSelector ),
$node = self.getObserverNode( self, priceSelector, isPrimary );
if ( observer ) {
self.stopObserver( self, priceSelector );
if ( $node.length > 0 ) {
observer.observe( $node[0], { attributes: true, childList: true, subtree: true, characterData: true, attributeFilter: ['style'] } );
}
return true;
}
return false;
};
GermanizedUnitPriceObserver.prototype.initObservers = function( self ) {
if ( Object.keys( self.observer ).length !== 0 ) {
return;
}
$.each( self.params.price_selector, function( priceSelector, priceArgs ) {
var isPrimary = priceArgs.hasOwnProperty( 'is_primary_selector' ) ? priceArgs['is_primary_selector'] : false,
$observerNode = self.getObserverNode( self, priceSelector, isPrimary ),
currentObserver = false;
if ( $observerNode.length > 0 && $observerNode.is( ':visible' ) ) {
// Callback function to execute when mutations are observed
var callback = function( mutationsList, observer ) {
var $priceNode = self.getPriceNode( self, priceSelector, isPrimary );
for ( let mutation of mutationsList ) {
let $element = $( mutation.target );
if ( $element.length > 0 ) {
let $priceElement;
if ( $element.is( priceSelector ) ) {
$priceElement = $element;
} else {
$priceElement = $element.parents( priceSelector );
}
if ( $priceElement.length > 0 ) {
$priceNode = $priceElement;
}
}
}
/**
* Clear the timeout and abort open AJAX requests as
* a new mutation has been observed
*/
if ( self.timeout ) {
clearTimeout( self.timeout );
}
var $unitPrice = self.getUnitPriceNode( self, $priceNode ),
hasRefreshed = false;
if ( $priceNode.length <= 0 ) {
return false;
}
self.stopObserver( self, priceSelector );
if ( $unitPrice.length > 0 ) {
self.setUnitPriceLoading( self, $unitPrice );
/**
* Need to use a tweak here to make sure our variation listener
* has already adjusted the variationId (in case necessary).
*/
self.timeout = setTimeout(function() {
self.stopObserver( self, priceSelector );
$priceNode = self.getPriceNode( self, priceSelector, isPrimary ); // Refresh dom instance as the price element may change during timeout
if ( $priceNode.length > 0 ) {
var priceData = self.getCurrentPriceData( self, $priceNode, priceArgs['is_total_price'], isPrimary, priceArgs['quantity_selector'] );
var isVisible = $priceNode.is( ':visible' );
if ( priceData ) {
if ( self.isRefreshingUnitPrice( self.getCurrentProductId( self ) ) ) {
self.abortRefreshUnitPrice( self.getCurrentProductId( self ) );
}
hasRefreshed = true;
self.refreshUnitPrice( self, priceData, priceSelector, isPrimary );
}
if ( ! hasRefreshed && $unitPrice.length > 0 ) {
self.unsetUnitPriceLoading( self, $unitPrice );
if ( ! isVisible && isPrimary ) {
$unitPrice.hide();
}
}
}
self.startObserver( self, priceSelector, isPrimary );
}, 500 );
}
};
if ( "MutationObserver" in window ) {
currentObserver = new window.MutationObserver( callback );
} else if ( "WebKitMutationObserver" in window ) {
currentObserver = new window.WebKitMutationObserver( callback );
} else if ( "MozMutationObserver" in window ) {
currentObserver = new window.MozMutationObserver( callback );
}
if ( currentObserver ) {
self.observer[ priceSelector ] = currentObserver;
self.startObserver( self, priceSelector, isPrimary );
}
}
});
};
GermanizedUnitPriceObserver.prototype.getObserver = function( self, priceSelector ) {
if ( self.observer.hasOwnProperty( priceSelector ) ) {
return self.observer[ priceSelector ];
}
return false;
};
GermanizedUnitPriceObserver.prototype.cancelObservers = function( self ) {
for ( var key in self.observer ) {
if ( self.observer.hasOwnProperty( key ) ) {
self.observer[ key ].disconnect();
delete self.observer[ key ];
}
}
};
/**
* Reset all fields.
*/
GermanizedUnitPriceObserver.prototype.onResetVariation = function( event ) {
var self = event.data.GermanizedUnitPriceObserver;
self.variationId = 0;
};
GermanizedUnitPriceObserver.prototype.onFoundVariation = function( event, variation ) {
var self = event.data.GermanizedUnitPriceObserver;
if ( variation.hasOwnProperty( 'variation_id' ) ) {
self.variationId = parseInt( variation.variation_id );
}
self.initObservers( self );
};
GermanizedUnitPriceObserver.prototype.getCurrentPriceData = function( self, priceSelector, isTotalPrice, isPrimary, quantitySelector ) {
quantitySelector = quantitySelector && '' !== quantitySelector ? quantitySelector : self.params.qty_selector;
var $price = ( typeof priceSelector === 'string' || priceSelector instanceof String ) ? self.getPriceNode( self, priceSelector, isPrimary ) : priceSelector;
if ( $price.length > 0 ) {
// Add a tmp hidden class to detect hidden elements in cloned obj
$price.find( ':hidden' ).addClass( 'wc-gzd-is-hidden' );
var $unit_price = self.getUnitPriceNode( self, $price ),
$priceCloned = $price.clone();
// Remove price suffix from cloned DOM element to prevent finding the wrong (sale) price
$priceCloned.find( '.woocommerce-price-suffix' ).remove();
$priceCloned.find( '.wc-gzd-is-hidden' ).remove();
var sale_price = '',
$priceInner = $priceCloned.find( '.amount:first' ),
$qty = $( self.params.wrapper + ' ' + quantitySelector + ':first' ),
qty = 1,
is_range= false;
if ( $qty.length > 0 ) {
qty = parseFloat( $qty.val() );
}
/**
* In case the price element does not contain the default Woo price structure
* search the whole element.
*/
if ( $priceInner.length <= 0 ) {
if ( $priceCloned.find( '.price' ).length > 0 ) {
$priceInner = $priceCloned.find( '.price' );
} else {
$priceInner = $priceCloned;
}
}
var price = self.getRawPrice( $priceInner, self.params.price_decimal_sep );
/**
* Is sale?
*/
if ( $priceCloned.find( '.amount' ).length > 1 ) {
// The second .amount element is the sale price
var $sale_price = $( $priceCloned.find( '.amount' )[1] );
sale_price = self.getRawPrice( $sale_price, self.params.price_decimal_sep );
}
/**
* Is price range, e.g. variable products
*/
if ( sale_price && $priceCloned.find( 'del' ).length <= 0 ) {
is_range = true;
}
$price.find( '.wc-gzd-is-hidden' ).removeClass( 'wc-gzd-is-hidden' );
if ( $unit_price.length > 0 && price ) {
if ( isTotalPrice ) {
price = parseFloat( price ) / qty;
if ( sale_price ) {
sale_price = parseFloat( sale_price ) / qty;
}
}
return {
'price' : price,
'unit_price': $unit_price,
'sale_price': sale_price,
'quantity' : qty,
'is_range' : is_range,
};
}
}
return false;
};
GermanizedUnitPriceObserver.prototype.getCurrentProductId = function( self ) {
var productId = self.productId;
if ( self.variationId > 0 ) {
productId = self.variationId;
}
return parseInt( productId );
};
GermanizedUnitPriceObserver.prototype.getRawPrice = function( $el, decimal_sep ) {
var price_raw = $el.length > 0 ? $el.text() : '',
price = false;
try {
price = accounting.unformat( price_raw, decimal_sep );
} catch (e) {
price = false;
}
return price;
};
GermanizedUnitPriceObserver.prototype.setUnitPriceLoading = function( self, $unit_price ) {
var unitPriceOrg = $unit_price.html();
if ( ! $unit_price.hasClass( 'wc-gzd-loading' ) ) {
var textWidth = self.getTextWidth( $unit_price ),
textHeight = $unit_price.find( 'span' ).length > 0 ? $unit_price.find( 'span' ).innerHeight() : $unit_price.height();
/**
* @see https://github.com/zalog/placeholder-loading
*/
$unit_price.html( '' );
$unit_price.addClass( 'wc-gzd-loading' );
}
$unit_price.data( 'org-html', unitPriceOrg );
return unitPriceOrg;
};
GermanizedUnitPriceObserver.prototype.unsetUnitPriceLoading = function( self, $unit_price, newHtml ) {
newHtml = newHtml || $unit_price.data( 'org-html' );
$unit_price.html( newHtml );
if ( $unit_price.hasClass( 'wc-gzd-loading' ) ) {
$unit_price.removeClass( 'wc-gzd-loading' );
}
if ( typeof newHtml === "string" && newHtml.length > 0 ) {
$unit_price.show();
}
};
GermanizedUnitPriceObserver.prototype.isRefreshingUnitPrice = function( currentProductId ) {
return germanized.unit_price_observer_queue.exists( currentProductId );
};
GermanizedUnitPriceObserver.prototype.abortRefreshUnitPrice = function( currentProductId ) {
return germanized.unit_price_observer_queue.abort( currentProductId );
};
GermanizedUnitPriceObserver.prototype.refreshUnitPrice = function( self, priceData, priceSelector, isPrimary ) {
germanized.unit_price_observer_queue.add( self, self.getCurrentProductId( self ), priceData, priceSelector, isPrimary );
};
/**
* Function to call wc_gzd_variation_form on jquery selector.
*/
$.fn.wc_germanized_unit_price_observer = function() {
if ( $( this ).data( 'unitPriceObserver' ) ) {
$( this ).data( 'unitPriceObserver' ).destroy();
}
new GermanizedUnitPriceObserver( this );
return this;
};
$( function() {
if ( typeof wc_gzd_unit_price_observer_params !== 'undefined' ) {
$( wc_gzd_unit_price_observer_params.wrapper ).each( function() {
if ( $( this ).is( 'body' ) ) {
return;
}
$( this ).wc_germanized_unit_price_observer();
});
}
});
})( jQuery, window, document );
window.germanized = window.germanized || {};
// source --> https://braustelle.com/wp-content/plugins/woocommerce/assets/js/flexslider/jquery.flexslider.js?ver=2.7.2-wc.10.5.2
/*
* jQuery FlexSlider v2.7.2
* Copyright 2012 WooThemes
* Contributing Author: Tyler Smith
*/
;
(function ($) {
var focused = true;
// When wishing to use jQuery transitions, we replicate them with CSS3's transition-timing-function instead
// Default options provided by jQuery are "swing" and "linear"; jQuery easing plugin methods: https://easings.net/
// We do NOT support easeInElastic, easeOutElastic, easeInOutElastic, easeInBounce, easeOutBounce, and easeInOutBounce
var easings = {
swing: 'cubic-bezier(.02, .01, .47, 1)', // https://stackoverflow.com/a/9245729
linear: 'linear',
easeInQuad: 'cubic-bezier(0.11, 0, 0.5, 0)', // https://easings.net/#easeInQuad
easeOutQuad: 'cubic-bezier(0.5, 1, 0.89, 1)', // https://easings.net/#easeOutQuad
easeInOutQuad: 'cubic-bezier(0.45, 0, 0.55, 1)', // https://easings.net/#easeInOutQuad
easeInCubic: 'cubic-bezier(0.32, 0, 0.67, 0)', // https://easings.net/#easeInCubic
easeOutCubic: 'cubic-bezier(0.33, 1, 0.68, 1)', // https://easings.net/#easeOutCubic
easeInOutCubic: 'cubic-bezier(0.65, 0, 0.35, 1)', // https://easings.net/#easeInOutCubic
easeInQuart: 'cubic-bezier(0.5, 0, 0.75, 0)', // https://easings.net/#easeInQuart
easeOutQuart: 'cubic-bezier(0.25, 1, 0.5, 1)', // https://easings.net/#easeOutQuart
easeInOutQuart: 'cubic-bezier(0.76, 0, 0.24, 1)', // https://easings.net/#easeInOutQuart
easeInQuint: 'cubic-bezier(0.64, 0, 0.78, 0)', // https://easings.net/#easeInQuint
easeOutQuint: 'cubic-bezier(0.22, 1, 0.36, 1)', // https://easings.net/#easeOutQuint
easeInOutQuint: 'cubic-bezier(0.83, 0, 0.17, 1)', // https://easings.net/#easeInOutQuint
easeInSine: 'cubic-bezier(0.12, 0, 0.39, 0)', // https://easings.net/#easeInSine
easeOutSine: 'cubic-bezier(0.61, 1, 0.88, 1)', // https://easings.net/#easeOutSine
easeInOutSine: 'cubic-bezier(0.37, 0, 0.63, 1)', // https://easings.net/#easeInOutSine
easeInExpo: 'cubic-bezier(0.7, 0, 0.84, 0)', // https://easings.net/#easeInExpo
easeOutExpo: 'cubic-bezier(0.16, 1, 0.3, 1)', // https://easings.net/#easeOutExpo
easeInOutExpo: 'cubic-bezier(0.87, 0, 0.13, 1)', // https://easings.net/#easeInOutExpo
easeInCirc: 'cubic-bezier(0.55, 0, 1, 0.45)', // https://easings.net/#easeInCirc
easeOutCirc: 'cubic-bezier(0, 0.55, 0.45, 1)', // https://easings.net/#easeOutCirc
easeInOutCirc: 'cubic-bezier(0.85, 0, 0.15, 1)', // https://easings.net/#easeInOutCirc
easeInBack: 'cubic-bezier(0.36, 0, 0.66, -0.56)', // https://easings.net/#easeInBack
easeOutBack: 'cubic-bezier(0.34, 1.56, 0.64, 1)', // https://easings.net/#easeOutBack
easeInOutBack: 'cubic-bezier(0.68, -0.6, 0.32, 1.6)' // https://easings.net/#easeInOutBack
};
// Preserve the original jQuery "swing" easing as "jswing"
easings['jswing'] = easings['swing'];
//FlexSlider: Object Instance
$.flexslider = function(el, options) {
var slider = $(el);
// making variables public
//if rtl value was not passed and html is in rtl..enable it by default.
if(typeof options.rtl=='undefined' && $('html').attr('dir')=='rtl'){
options.rtl=true;
}
slider.vars = $.extend({}, $.flexslider.defaults, options);
var namespace = slider.vars.namespace,
touch = (( "ontouchstart" in window ) || window.DocumentTouch && document instanceof DocumentTouch) && slider.vars.touch,
// we add a custom event so we can differentiate manually triggering events when needed.
eventType = "click touchend keyup flexslider-click",
watchedEvent = "",
watchedEventClearTimer,
easing = easings[slider.vars.easing] || "ease",
vertical = slider.vars.direction === "vertical",
reverse = slider.vars.reverse,
carousel = (slider.vars.itemWidth > 0),
fade = slider.vars.animation === "fade",
asNav = slider.vars.asNavFor !== "",
methods = {};
// Store a reference to the slider object
$.data(el, "flexslider", slider);
// Private slider methods
methods = {
init: function() {
slider.animating = false;
// Get current slide and make sure it is a number
slider.currentSlide = parseInt( ( slider.vars.startAt ? slider.vars.startAt : 0), 10 );
if ( isNaN( slider.currentSlide ) ) { slider.currentSlide = 0; }
slider.animatingTo = slider.currentSlide;
slider.atEnd = (slider.currentSlide === 0 || slider.currentSlide === slider.last);
slider.containerSelector = slider.vars.selector.substr(0,slider.vars.selector.search(' '));
slider.slides = $(slider.vars.selector, slider);
slider.container = $(slider.containerSelector, slider);
slider.count = slider.slides.length;
// SYNC:
slider.syncExists = $(slider.vars.sync).length > 0;
// SLIDE:
if (slider.vars.animation === "slide") { slider.vars.animation = "swing"; }
slider.prop = (vertical) ? "top" : ( slider.vars.rtl ? "marginRight" : "marginLeft" );
slider.args = {};
// SLIDESHOW:
slider.manualPause = false;
slider.stopped = false;
//PAUSE WHEN INVISIBLE
slider.started = false;
slider.startTimeout = null;
// TOUCH/USECSS:
slider.transforms = slider.transitions = !slider.vars.video && !fade && slider.vars.useCSS;
if (slider.transforms) slider.prop = "transform";
slider.isFirefox = navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
slider.ensureAnimationEnd = '';
// CONTROLSCONTAINER:
if (slider.vars.controlsContainer !== "") slider.controlsContainer = $(slider.vars.controlsContainer).length > 0 && $(slider.vars.controlsContainer);
// MANUAL:
if (slider.vars.manualControls !== "") slider.manualControls = $(slider.vars.manualControls).length > 0 && $(slider.vars.manualControls);
// CUSTOM DIRECTION NAV:
if (slider.vars.customDirectionNav !== "") slider.customDirectionNav = $(slider.vars.customDirectionNav).length === 2 && $(slider.vars.customDirectionNav);
// RANDOMIZE:
if (slider.vars.randomize) {
slider.slides.sort(function() { return (Math.round(Math.random())-0.5); });
slider.container.empty().append(slider.slides);
}
slider.doMath();
// INIT
slider.setup("init");
// CONTROLNAV:
if (slider.vars.controlNav) { methods.controlNav.setup(); }
// DIRECTIONNAV:
if (slider.vars.directionNav) { methods.directionNav.setup(); }
// KEYBOARD:
if (slider.vars.keyboard && ($(slider.containerSelector).length === 1 || slider.vars.multipleKeyboard)) {
$(document).on('keyup', function(event) {
var keycode = event.keyCode;
if (!slider.animating && (keycode === 39 || keycode === 37)) {
var target = (slider.vars.rtl?
((keycode === 37) ? slider.getTarget('next') :
(keycode === 39) ? slider.getTarget('prev') : false)
:
((keycode === 39) ? slider.getTarget('next') :
(keycode === 37) ? slider.getTarget('prev') : false)
)
;
slider.flexAnimate(target, slider.vars.pauseOnAction);
}
});
}
// MOUSEWHEEL:
if (slider.vars.mousewheel) {
slider.on('mousewheel', function(event, delta, deltaX, deltaY) {
event.preventDefault();
var target = (delta < 0) ? slider.getTarget('next') : slider.getTarget('prev');
slider.flexAnimate(target, slider.vars.pauseOnAction);
});
}
// PAUSEPLAY
if (slider.vars.pausePlay) { methods.pausePlay.setup(); }
//PAUSE WHEN INVISIBLE
if (slider.vars.slideshow && slider.vars.pauseInvisible) { methods.pauseInvisible(); }
// SLIDSESHOW
if (slider.vars.slideshow) {
if (slider.vars.pauseOnHover) {
slider.on( 'mouseenter', function() {
if (!slider.manualPlay && !slider.manualPause) { slider.pause(); }
} ).on( 'mouseleave', function() {
if (!slider.manualPause && !slider.manualPlay && !slider.stopped) { slider.play(); }
});
}
// initialize animation
//If we're visible, or we don't use PageVisibility API
if(!slider.vars.pauseInvisible || document.visibilityState === 'visible') {
(slider.vars.initDelay > 0) ? slider.startTimeout = setTimeout(slider.play, slider.vars.initDelay) : slider.play();
}
}
// ASNAV:
if (asNav) { methods.asNav.setup(); }
// TOUCH
if (touch && slider.vars.touch) { methods.touch(); }
// FADE&&SMOOTHHEIGHT || SLIDE:
if (!fade || (fade && slider.vars.smoothHeight)) { $(window).on("resize orientationchange focus", methods.resize); }
slider.find("img").attr("draggable", "false");
// API: start() Callback
setTimeout(function(){
slider.vars.start(slider);
}, 200);
},
asNav: {
setup: function() {
slider.asNav = true;
slider.animatingTo = Math.floor(slider.currentSlide/slider.move);
slider.currentItem = slider.currentSlide;
slider.slides.removeClass(namespace + "active-slide").eq(slider.currentItem).addClass(namespace + "active-slide");
slider.slides.on(eventType, function(e){
e.preventDefault();
var $slide = $(this),
target = $slide.index();
var posFromX;
if(slider.vars.rtl){
posFromX = -1*($slide.offset().right - $(slider).scrollLeft()); // Find position of slide relative to right of slider container
}
else
{
posFromX = $slide.offset().left - $(slider).scrollLeft(); // Find position of slide relative to left of slider container
}
if( posFromX <= 0 && $slide.hasClass( namespace + 'active-slide' ) ) {
slider.flexAnimate(slider.getTarget("prev"), true);
} else if (!$(slider.vars.asNavFor).data('flexslider').animating && !$slide.hasClass(namespace + "active-slide")) {
slider.direction = (slider.currentItem < target) ? "next" : "prev";
slider.flexAnimate(target, slider.vars.pauseOnAction, false, true, true);
}
});
}
},
controlNav: {
setup: function() {
if (!slider.manualControls) {
methods.controlNav.setupPaging();
} else { // MANUALCONTROLS:
methods.controlNav.setupManual();
}
},
setupPaging: function() {
var type = (slider.vars.controlNav === "thumbnails") ? 'control-thumbs' : 'control-paging',
j = 1,
item,
slide;
slider.controlNavScaffold = $('
');
if (slider.pagingCount > 1) {
for (var i = 0; i < slider.pagingCount; i++) {
slide = slider.slides.eq(i);
if ( undefined === slide.attr( 'data-thumb-alt' ) ) {
slide.attr( 'data-thumb-alt', '' );
}
item = $( '' ).attr( 'href', '#' ).text( j );
if (slider.vars.controlNav === "thumbnails") {
item = $('![]()
', {
onload: 'this.width = this.naturalWidth; this.height = this.naturalHeight',
src: slide.attr('data-thumb'),
srcset: slide.attr('data-thumb-srcset'),
sizes: slide.attr('data-thumb-sizes'),
alt: slide.attr('alt')
})
}
if ( '' !== slide.attr( 'data-thumb-alt' ) ) {
item.attr( 'alt', slide.attr( 'data-thumb-alt' ) );
}
if ( 'thumbnails' === slider.vars.controlNav && true === slider.vars.thumbCaptions ) {
var captn = slide.attr( 'data-thumbcaption' );
if ( '' !== captn && undefined !== captn ) {
var caption = $('' ).addClass( namespace + 'caption' ).text( captn );
item.append( caption );
}
}
var liElement = $( '' );
item.appendTo( liElement );
liElement.append( '' );
slider.controlNavScaffold.append(liElement);
j++;
}
}
// CONTROLSCONTAINER:
(slider.controlsContainer) ? $(slider.controlsContainer).append(slider.controlNavScaffold) : slider.append(slider.controlNavScaffold);
methods.controlNav.set();
methods.controlNav.active();
slider.controlNavScaffold.on(eventType, 'a, img', function(event) {
event.preventDefault();
if (watchedEvent === "" || watchedEvent === event.type || event.type === "flexslider-click") {
var $this = $(this),
target = slider.controlNav.index($this);
if (!$this.hasClass(namespace + 'active')) {
slider.direction = (target > slider.currentSlide) ? "next" : "prev";
slider.flexAnimate(target, slider.vars.pauseOnAction);
}
}
// setup flags to prevent event duplication
if (watchedEvent === "" && event.type !== "flexslider-click") {
watchedEvent = event.type;
}
methods.setToClearWatchedEvent();
});
},
setupManual: function() {
slider.controlNav = slider.manualControls;
methods.controlNav.active();
slider.controlNav.on(eventType, function(event) {
event.preventDefault();
if (watchedEvent === "" || watchedEvent === event.type || event.type === "flexslider-click") {
var $this = $(this),
target = slider.controlNav.index($this);
if (!$this.hasClass(namespace + 'active')) {
(target > slider.currentSlide) ? slider.direction = "next" : slider.direction = "prev";
slider.flexAnimate(target, slider.vars.pauseOnAction);
}
}
// setup flags to prevent event duplication
if (watchedEvent === "" && event.type !== "flexslider-click") {
watchedEvent = event.type;
}
methods.setToClearWatchedEvent();
});
},
set: function() {
var selector = (slider.vars.controlNav === "thumbnails") ? 'img' : 'a';
slider.controlNav = $('.' + namespace + 'control-nav li ' + selector, (slider.controlsContainer) ? slider.controlsContainer : slider);
},
active: function() {
slider.controlNav.removeClass(namespace + "active").eq(slider.animatingTo).addClass(namespace + "active");
},
update: function(action, pos) {
if (slider.pagingCount > 1 && action === "add") {
slider.controlNavScaffold.append($('' + slider.count + ''));
} else if (slider.pagingCount === 1) {
slider.controlNavScaffold.find('li').remove();
} else {
slider.controlNav.eq(pos).closest('li').remove();
}
methods.controlNav.set();
(slider.pagingCount > 1 && slider.pagingCount !== slider.controlNav.length) ? slider.update(pos, action) : methods.controlNav.active();
}
},
directionNav: {
setup: function() {
var directionNavScaffold = $('');
// CUSTOM DIRECTION NAV:
if (slider.customDirectionNav) {
slider.directionNav = slider.customDirectionNav;
// CONTROLSCONTAINER:
} else if (slider.controlsContainer) {
$(slider.controlsContainer).append(directionNavScaffold);
slider.directionNav = $('.' + namespace + 'direction-nav li a', slider.controlsContainer);
} else {
slider.append(directionNavScaffold);
slider.directionNav = $('.' + namespace + 'direction-nav li a', slider);
}
methods.directionNav.update();
slider.directionNav.on(eventType, function(event) {
event.preventDefault();
var target;
if (watchedEvent === "" || watchedEvent === event.type || event.type === "flexslider-click") {
target = ($(this).hasClass(namespace + 'next')) ? slider.getTarget('next') : slider.getTarget('prev');
slider.flexAnimate(target, slider.vars.pauseOnAction);
}
// setup flags to prevent event duplication
if (watchedEvent === "" && event.type !== "flexslider-click") {
watchedEvent = event.type;
}
methods.setToClearWatchedEvent();
});
},
update: function() {
var disabledClass = namespace + 'disabled';
if (slider.pagingCount === 1) {
slider.directionNav.addClass(disabledClass).attr('tabindex', '-1');
} else if (!slider.vars.animationLoop) {
if (slider.animatingTo === 0) {
slider.directionNav.removeClass(disabledClass).filter('.' + namespace + "prev").addClass(disabledClass).attr('tabindex', '-1');
} else if (slider.animatingTo === slider.last) {
slider.directionNav.removeClass(disabledClass).filter('.' + namespace + "next").addClass(disabledClass).attr('tabindex', '-1');
} else {
slider.directionNav.removeClass(disabledClass).prop( 'tabindex', '-1' );
}
} else {
slider.directionNav.removeClass(disabledClass).prop( 'tabindex', '-1' );
}
}
},
pausePlay: {
setup: function() {
var pausePlayScaffold = $('');
// CONTROLSCONTAINER:
if (slider.controlsContainer) {
slider.controlsContainer.append(pausePlayScaffold);
slider.pausePlay = $('.' + namespace + 'pauseplay a', slider.controlsContainer);
} else {
slider.append(pausePlayScaffold);
slider.pausePlay = $('.' + namespace + 'pauseplay a', slider);
}
methods.pausePlay.update((slider.vars.slideshow) ? namespace + 'pause' : namespace + 'play');
slider.pausePlay.on(eventType, function(event) {
event.preventDefault();
if (watchedEvent === "" || watchedEvent === event.type || event.type === "flexslider-click") {
if ($(this).hasClass(namespace + 'pause')) {
slider.manualPause = true;
slider.manualPlay = false;
slider.pause();
} else {
slider.manualPause = false;
slider.manualPlay = true;
slider.play();
}
}
// setup flags to prevent event duplication
if (watchedEvent === "" && event.type !== "flexslider-click") {
watchedEvent = event.type;
}
methods.setToClearWatchedEvent();
});
},
update: function(state) {
(state === "play") ? slider.pausePlay.removeClass(namespace + 'pause').addClass(namespace + 'play').html(slider.vars.playText) : slider.pausePlay.removeClass(namespace + 'play').addClass(namespace + 'pause').html(slider.vars.pauseText);
}
},
touch: function() {
var startX,
startY,
offset,
cwidth,
dx,
startT,
onTouchStart,
onTouchMove,
onTouchEnd,
scrolling = false,
localX = 0,
localY = 0,
accDx = 0;
onTouchStart = function(e) {
if (slider.animating) {
e.preventDefault();
} else if ( e.touches.length === 1 ) {
slider.pause();
// CAROUSEL:
cwidth = (vertical) ? slider.h : slider. w;
startT = Number(new Date());
// CAROUSEL:
// Local vars for X and Y points.
localX = e.touches[0].pageX;
localY = e.touches[0].pageY;
offset = (carousel && reverse && slider.animatingTo === slider.last) ? 0 :
(carousel && reverse) ? slider.limit - (((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.animatingTo) :
(carousel && slider.currentSlide === slider.last) ? slider.limit :
(carousel) ? ((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.currentSlide :
(reverse) ? (slider.last - slider.currentSlide + slider.cloneOffset) * cwidth : (slider.currentSlide + slider.cloneOffset) * cwidth;
startX = (vertical) ? localY : localX;
startY = (vertical) ? localX : localY;
el.addEventListener('touchmove', onTouchMove, false);
el.addEventListener('touchend', onTouchEnd, false);
}
};
onTouchMove = function(e) {
// Local vars for X and Y points.
localX = e.touches[0].pageX;
localY = e.touches[0].pageY;
dx = (vertical) ? startX - localY : (slider.vars.rtl?-1:1)*(startX - localX);
scrolling = (vertical) ? (Math.abs(dx) < Math.abs(localX - startY)) : (Math.abs(dx) < Math.abs(localY - startY));
var fxms = 500;
if ( ! scrolling || Number( new Date() ) - startT > fxms ) {
e.preventDefault();
if (!fade) {
if (!slider.vars.animationLoop) {
dx = dx/((slider.currentSlide === 0 && dx < 0 || slider.currentSlide === slider.last && dx > 0) ? (Math.abs(dx)/cwidth+2) : 1);
}
slider.setProps(offset + dx, "setTouch");
}
}
};
onTouchEnd = function(e) {
// finish the touch by undoing the touch session
el.removeEventListener('touchmove', onTouchMove, false);
if (slider.animatingTo === slider.currentSlide && !scrolling && !(dx === null)) {
var updateDx = (reverse) ? -dx : dx,
target = (updateDx > 0) ? slider.getTarget('next') : slider.getTarget('prev');
if (slider.canAdvance(target) && (Number(new Date()) - startT < 550 && Math.abs(updateDx) > 50 || Math.abs(updateDx) > cwidth/2)) {
slider.flexAnimate(target, slider.vars.pauseOnAction);
} else {
if (!fade) { slider.flexAnimate(slider.currentSlide, slider.vars.pauseOnAction, true); }
}
}
el.removeEventListener('touchend', onTouchEnd, false);
startX = null;
startY = null;
dx = null;
offset = null;
};
el.addEventListener('touchstart', onTouchStart, false);
},
resize: function() {
if (!slider.animating && slider.is(':visible')) {
if (!carousel) { slider.doMath(); }
if (fade) {
// SMOOTH HEIGHT:
methods.smoothHeight();
} else if (carousel) { //CAROUSEL:
slider.slides.width(slider.computedW);
slider.update(slider.pagingCount);
slider.setProps();
}
else if (vertical) { //VERTICAL:
slider.viewport.height(slider.h);
slider.setProps(slider.h, "setTotal");
} else {
slider.setProps(slider.computedW, "setTotal");
slider.newSlides.width(slider.computedW);
// SMOOTH HEIGHT:
if (slider.vars.smoothHeight) { methods.smoothHeight(); }
}
}
},
smoothHeight: function(dur) {
if (!vertical || fade) {
var $obj = (fade) ? slider : slider.viewport;
$obj.css({"height": slider.slides.eq(slider.animatingTo).innerHeight(), "transition": dur ? ("height " + dur + "ms") : "none"});
}
},
sync: function(action) {
var $obj = $(slider.vars.sync).data("flexslider"),
target = slider.animatingTo;
switch (action) {
case "animate": $obj.flexAnimate(target, slider.vars.pauseOnAction, false, true); break;
case "play": if (!$obj.playing && !$obj.asNav) { $obj.play(); } break;
case "pause": $obj.pause(); break;
}
},
uniqueID: function($clone) {
// Append _clone to current level and children elements with id attributes
$clone.filter( '[id]' ).add($clone.find( '[id]' )).each(function() {
var $this = $(this);
$this.attr( 'id', $this.attr( 'id' ) + '_clone' );
});
return $clone;
},
pauseInvisible: function() {
document.addEventListener('visibilitychange', function() {
if (document.visibilityState === 'hidden') {
if(slider.startTimeout) {
clearTimeout(slider.startTimeout); //If clock is ticking, stop timer and prevent from starting while invisible
} else {
slider.pause(); //Or just pause
}
}
else {
if(slider.started) {
slider.play(); //Initiated before, just play
} else {
if (slider.vars.initDelay > 0) {
setTimeout(slider.play, slider.vars.initDelay);
} else {
slider.play(); //Didn't init before: simply init or wait for it
}
}
}
});
},
setToClearWatchedEvent: function() {
clearTimeout(watchedEventClearTimer);
watchedEventClearTimer = setTimeout(function() {
watchedEvent = "";
}, 3000);
}
};
// public methods
slider.flexAnimate = function(target, pause, override, withSync, fromNav) {
if (!slider.vars.animationLoop && target !== slider.currentSlide) {
slider.direction = (target > slider.currentSlide) ? "next" : "prev";
}
if (asNav && slider.pagingCount === 1) slider.direction = (slider.currentItem < target) ? "next" : "prev";
if (!slider.animating && (slider.canAdvance(target, fromNav) || override) && slider.is(":visible")) {
if (asNav && withSync) {
var master = $(slider.vars.asNavFor).data('flexslider');
slider.atEnd = target === 0 || target === slider.count - 1;
master.flexAnimate(target, true, false, true, fromNav);
slider.direction = (slider.currentItem < target) ? "next" : "prev";
master.direction = slider.direction;
if (Math.ceil((target + 1)/slider.visible) - 1 !== slider.currentSlide && target !== 0) {
slider.currentItem = target;
slider.slides.removeClass(namespace + "active-slide").eq(target).addClass(namespace + "active-slide");
target = Math.floor(target/slider.visible);
} else {
slider.currentItem = target;
slider.slides.removeClass(namespace + "active-slide").eq(target).addClass(namespace + "active-slide");
return false;
}
}
slider.animating = true;
slider.animatingTo = target;
// SLIDESHOW:
if (pause) { slider.pause(); }
// API: before() animation Callback
slider.vars.before(slider);
// SYNC:
if (slider.syncExists && !fromNav) { methods.sync("animate"); }
// CONTROLNAV
if (slider.vars.controlNav) { methods.controlNav.active(); }
// !CAROUSEL:
// CANDIDATE: slide active class (for add/remove slide)
if (!carousel) { slider.slides.removeClass(namespace + 'active-slide').eq(target).addClass(namespace + 'active-slide'); }
// INFINITE LOOP:
// CANDIDATE: atEnd
slider.atEnd = target === 0 || target === slider.last;
// DIRECTIONNAV:
if (slider.vars.directionNav) { methods.directionNav.update(); }
if (target === slider.last) {
// API: end() of cycle Callback
slider.vars.end(slider);
// SLIDESHOW && !INFINITE LOOP:
if (!slider.vars.animationLoop) { slider.pause(); }
}
// SLIDE:
if (!fade) {
var dimension = (vertical) ? slider.slides.filter(':first').height() : slider.computedW,
margin, slideString, calcNext;
// INFINITE LOOP / REVERSE:
if (carousel) {
margin = slider.vars.itemMargin;
calcNext = ((slider.itemW + margin) * slider.move) * slider.animatingTo;
slideString = (calcNext > slider.limit && slider.visible !== 1) ? slider.limit : calcNext;
} else if (slider.currentSlide === 0 && target === slider.count - 1 && slider.vars.animationLoop && slider.direction !== "next") {
slideString = (reverse) ? (slider.count + slider.cloneOffset) * dimension : 0;
} else if (slider.currentSlide === slider.last && target === 0 && slider.vars.animationLoop && slider.direction !== "prev") {
slideString = (reverse) ? 0 : (slider.count + 1) * dimension;
} else {
slideString = (reverse) ? ((slider.count - 1) - target + slider.cloneOffset) * dimension : (target + slider.cloneOffset) * dimension;
}
slider.setProps(slideString, "", slider.vars.animationSpeed);
if (!slider.vars.animationLoop || !slider.atEnd) {
slider.animating = false;
slider.currentSlide = slider.animatingTo;
}
// Unbind previous transitionEnd events and re-bind new transitionEnd event
slider.container.off("transitionend");
slider.container.on("transitionend", function() {
clearTimeout(slider.ensureAnimationEnd);
slider.wrapup(dimension);
});
// Insurance for the ever-so-fickle transitionEnd event
clearTimeout(slider.ensureAnimationEnd);
slider.ensureAnimationEnd = setTimeout(function() {
slider.wrapup(dimension);
}, slider.vars.animationSpeed + 100);
} else { // FADE:
// if (!touch) calls slider.wrapup() on fade animation end; if (touch) calls slider.wrapup() immediately
if (!touch) {
slider.slides.eq(slider.currentSlide).off("transitionend");
slider.slides.eq(target).off("transitionend").on("transitionend", slider.wrapup);
}
slider.slides.eq(slider.currentSlide).css({ "opacity": 0, "zIndex": 1 });
slider.slides.eq(target).css({ "opacity": 1, "zIndex": 2 });
if (touch) {
slider.wrapup(dimension);
}
}
// SMOOTH HEIGHT:
if (slider.vars.smoothHeight) { methods.smoothHeight(slider.vars.animationSpeed); }
}
};
slider.wrapup = function(dimension) {
// SLIDE:
if (!fade && !carousel) {
if (slider.currentSlide === 0 && slider.animatingTo === slider.last && slider.vars.animationLoop) {
slider.setProps(dimension, "jumpEnd");
} else if (slider.currentSlide === slider.last && slider.animatingTo === 0 && slider.vars.animationLoop) {
slider.setProps(dimension, "jumpStart");
}
}
slider.animating = false;
slider.currentSlide = slider.animatingTo;
// API: after() animation Callback
slider.vars.after(slider);
};
// SLIDESHOW:
slider.animateSlides = function() {
if (!slider.animating && focused ) { slider.flexAnimate(slider.getTarget("next")); }
};
// SLIDESHOW:
slider.pause = function() {
clearInterval(slider.animatedSlides);
slider.animatedSlides = null;
slider.playing = false;
// PAUSEPLAY:
if (slider.vars.pausePlay) { methods.pausePlay.update("play"); }
// SYNC:
if (slider.syncExists) { methods.sync("pause"); }
};
// SLIDESHOW:
slider.play = function() {
if (slider.playing) { clearInterval(slider.animatedSlides); }
slider.animatedSlides = slider.animatedSlides || setInterval(slider.animateSlides, slider.vars.slideshowSpeed);
slider.started = slider.playing = true;
// PAUSEPLAY:
if (slider.vars.pausePlay) { methods.pausePlay.update("pause"); }
// SYNC:
if (slider.syncExists) { methods.sync("play"); }
};
// STOP:
slider.stop = function () {
slider.pause();
slider.stopped = true;
};
slider.canAdvance = function(target, fromNav) {
// ASNAV:
var last = (asNav) ? slider.pagingCount - 1 : slider.last;
return (fromNav) ? true :
(asNav && slider.currentItem === slider.count - 1 && target === 0 && slider.direction === "prev") ? true :
(asNav && slider.currentItem === 0 && target === slider.pagingCount - 1 && slider.direction !== "next") ? false :
(target === slider.currentSlide && !asNav) ? false :
(slider.vars.animationLoop) ? true :
(slider.atEnd && slider.currentSlide === 0 && target === last && slider.direction !== "next") ? false :
(slider.atEnd && slider.currentSlide === last && target === 0 && slider.direction === "next") ? false :
true;
};
slider.getTarget = function(dir) {
slider.direction = dir;
if (dir === "next") {
return (slider.currentSlide === slider.last) ? 0 : slider.currentSlide + 1;
} else {
return (slider.currentSlide === 0) ? slider.last : slider.currentSlide - 1;
}
};
// SLIDE:
slider.setProps = function(pos, special, dur) {
var target = (function() {
var posCheck = (pos) ? pos : ((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.animatingTo,
posCalc = (function() {
if (carousel) {
return (special === "setTouch") ? pos :
(reverse && slider.animatingTo === slider.last) ? 0 :
(reverse) ? slider.limit - (((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.animatingTo) :
(slider.animatingTo === slider.last) ? slider.limit : posCheck;
} else {
switch (special) {
case "setTotal": return (reverse) ? ((slider.count - 1) - slider.currentSlide + slider.cloneOffset) * pos : (slider.currentSlide + slider.cloneOffset) * pos;
case "setTouch": return (reverse) ? pos : pos;
case "jumpEnd": return (reverse) ? pos : slider.count * pos;
case "jumpStart": return (reverse) ? slider.count * pos : pos;
default: return pos;
}
}
}());
return (posCalc * ((slider.vars.rtl)?1:-1)) + "px";
}());
dur = (dur !== undefined) ? (dur/1000) + "s" : "0s";
slider.container.css("transition-duration", dur);
if (slider.transforms) {
target = (vertical) ? "translate3d(0," + target + ",0)" : "translate3d(" + (parseInt(target)+'px') + ",0,0)";
} else {
slider.container.css("transition-timing-function", easing);
}
slider.args[slider.prop] = target;
slider.container.css(slider.args);
};
slider.setup = function(type) {
// SLIDE:
if (!fade) {
var sliderOffset, arr;
if (type === "init") {
slider.viewport = $('').css({"overflow": "hidden", "position": "relative"}).appendTo(slider).append(slider.container);
// INFINITE LOOP:
slider.cloneCount = 0;
slider.cloneOffset = 0;
// REVERSE:
if (reverse) {
arr = $.makeArray(slider.slides).reverse();
slider.slides = $(arr);
slider.container.empty().append(slider.slides);
}
}
// INFINITE LOOP && !CAROUSEL:
if (slider.vars.animationLoop && !carousel) {
slider.cloneCount = 2;
slider.cloneOffset = 1;
// clear out old clones
if (type !== "init") { slider.container.find('.clone').remove(); }
slider.container.append(methods.uniqueID(slider.slides.first().clone().addClass('clone')).attr('aria-hidden', 'true'))
.prepend(methods.uniqueID(slider.slides.last().clone().addClass('clone')).attr('aria-hidden', 'true'));
}
slider.newSlides = $(slider.vars.selector, slider);
sliderOffset = (reverse) ? slider.count - 1 - slider.currentSlide + slider.cloneOffset : slider.currentSlide + slider.cloneOffset;
// VERTICAL:
if (vertical && !carousel) {
slider.container.height((slider.count + slider.cloneCount) * 200 + "%").css("position", "absolute").width("100%");
setTimeout(function(){
slider.newSlides.css({"display": "block"});
slider.doMath();
slider.viewport.height(slider.h);
slider.setProps(sliderOffset * slider.h, "init");
}, (type === "init") ? 100 : 0);
} else {
slider.container.width((slider.count + slider.cloneCount) * 200 + "%");
slider.setProps(sliderOffset * slider.computedW, "init");
setTimeout(function(){
slider.doMath();
if(slider.vars.rtl){
slider.newSlides.css({"width": slider.computedW, "marginRight" : slider.computedM, "float": "right", "display": "block"});
}
else{
slider.newSlides.css({"width": slider.computedW, "marginRight" : slider.computedM, "float": "left", "display": "block"});
}
// SMOOTH HEIGHT:
if (slider.vars.smoothHeight) { methods.smoothHeight(); }
}, (type === "init") ? 100 : 0);
}
} else { // FADE:
if(slider.vars.rtl){
slider.slides.css({"width": "100%", "float": 'right', "marginLeft": "-100%", "position": "relative"});
}
else{
slider.slides.css({"width": "100%", "float": 'left', "marginRight": "-100%", "position": "relative"});
}
if (type === "init") {
if (!touch) {
// Every "opacity" change before outerWidth() does NOT get animated; every "opacity" change after outerWidth() becomes a fadeIn animation
if (slider.vars.fadeFirstSlide == false) {
slider.slides.css({ "opacity": 0, "display": "block", "zIndex": 1 }).eq(slider.currentSlide).css({ "opacity": 1, "zIndex": 2 });
slider.slides.outerWidth();
} else {
slider.slides.css({ "opacity": 0, "display": "block", "zIndex": 1 }).outerWidth();
slider.slides.eq(slider.currentSlide).css({ "opacity": 1, "zIndex": 2 });
}
slider.slides.css({ "transition": "opacity " + slider.vars.animationSpeed / 1000 + "s " + easing });
} else {
slider.slides.css({ "opacity": 0, "display": "block", "transition": "opacity " + slider.vars.animationSpeed / 1000 + "s ease", "zIndex": 1 }).eq(slider.currentSlide).css({ "opacity": 1, "zIndex": 2 });
}
}
// SMOOTH HEIGHT:
if (slider.vars.smoothHeight) { methods.smoothHeight(); }
}
// !CAROUSEL:
// CANDIDATE: active slide
if (!carousel) { slider.slides.removeClass(namespace + "active-slide").eq(slider.currentSlide).addClass(namespace + "active-slide"); }
//FlexSlider: init() Callback
slider.vars.init(slider);
};
slider.doMath = function() {
var slide = slider.slides.first(),
slideMargin = slider.vars.itemMargin,
minItems = slider.vars.minItems,
maxItems = slider.vars.maxItems;
slider.w = (slider.viewport===undefined) ? slider.width() : slider.viewport.width();
if (slider.isFirefox) { slider.w = slider.width(); }
slider.h = slide.height();
slider.boxPadding = slide.outerWidth() - slide.width();
// CAROUSEL:
if (carousel) {
slider.itemT = slider.vars.itemWidth + slideMargin;
slider.itemM = slideMargin;
slider.minW = (minItems) ? minItems * slider.itemT : slider.w;
slider.maxW = (maxItems) ? (maxItems * slider.itemT) - slideMargin : slider.w;
slider.itemW = (slider.minW > slider.w) ? (slider.w - (slideMargin * (minItems - 1)))/minItems :
(slider.maxW < slider.w) ? (slider.w - (slideMargin * (maxItems - 1)))/maxItems :
(slider.vars.itemWidth > slider.w) ? slider.w : slider.vars.itemWidth;
slider.visible = Math.floor(slider.w/(slider.itemW));
slider.move = (slider.vars.move > 0 && slider.vars.move < slider.visible ) ? slider.vars.move : slider.visible;
slider.pagingCount = Math.ceil(((slider.count - slider.visible)/slider.move) + 1);
slider.last = slider.pagingCount - 1;
slider.limit = (slider.pagingCount === 1) ? 0 :
(slider.vars.itemWidth > slider.w) ? (slider.itemW * (slider.count - 1)) + (slideMargin * (slider.count - 1)) : ((slider.itemW + slideMargin) * slider.count) - slider.w - slideMargin;
} else {
slider.itemW = slider.w;
slider.itemM = slideMargin;
slider.pagingCount = slider.count;
slider.last = slider.count - 1;
}
slider.computedW = slider.itemW - slider.boxPadding;
slider.computedM = slider.itemM;
};
slider.update = function(pos, action) {
slider.doMath();
// update currentSlide and slider.animatingTo if necessary
if (!carousel) {
if (pos < slider.currentSlide) {
slider.currentSlide += 1;
} else if (pos <= slider.currentSlide && pos !== 0) {
slider.currentSlide -= 1;
}
slider.animatingTo = slider.currentSlide;
}
// update controlNav
if (slider.vars.controlNav && !slider.manualControls) {
if ((action === "add" && !carousel) || slider.pagingCount > slider.controlNav.length) {
methods.controlNav.update("add");
} else if ((action === "remove" && !carousel) || slider.pagingCount < slider.controlNav.length) {
if (carousel && slider.currentSlide > slider.last) {
slider.currentSlide -= 1;
slider.animatingTo -= 1;
}
methods.controlNav.update("remove", slider.last);
}
}
// update directionNav
if (slider.vars.directionNav) { methods.directionNav.update(); }
};
slider.addSlide = function(obj, pos) {
var $obj = $(obj);
slider.count += 1;
slider.last = slider.count - 1;
// append new slide
if (vertical && reverse) {
(pos !== undefined) ? slider.slides.eq(slider.count - pos).after($obj) : slider.container.prepend($obj);
} else {
(pos !== undefined) ? slider.slides.eq(pos).before($obj) : slider.container.append($obj);
}
// update currentSlide, animatingTo, controlNav, and directionNav
slider.update(pos, "add");
// update slider.slides
slider.slides = $(slider.vars.selector + ':not(.clone)', slider);
// re-setup the slider to accommodate new slide
slider.setup();
//FlexSlider: added() Callback
slider.vars.added(slider);
};
slider.removeSlide = function(obj) {
var pos = (isNaN(obj)) ? slider.slides.index($(obj)) : obj;
// update count
slider.count -= 1;
slider.last = slider.count - 1;
// remove slide
if (isNaN(obj)) {
$(obj, slider.slides).remove();
} else {
(vertical && reverse) ? slider.slides.eq(slider.last).remove() : slider.slides.eq(obj).remove();
}
// update currentSlide, animatingTo, controlNav, and directionNav
slider.doMath();
slider.update(pos, "remove");
// update slider.slides
slider.slides = $(slider.vars.selector + ':not(.clone)', slider);
// re-setup the slider to accommodate new slide
slider.setup();
// FlexSlider: removed() Callback
slider.vars.removed(slider);
};
//FlexSlider: Initialize
methods.init();
};
// Ensure the slider isn't focussed if the window loses focus.
$( window ).on( 'blur', function ( e ) {
focused = false;
}).on( 'focus', function ( e ) {
focused = true;
});
//FlexSlider: Default Settings
$.flexslider.defaults = {
namespace: "flex-", //{NEW} String: Prefix string attached to the class of every element generated by the plugin
selector: ".slides > li", //{NEW} Selector: Must match a simple pattern. '{container} > {slide}' -- Ignore pattern at your own peril
animation: "fade", //String: Select your animation type, "fade" or "slide"
easing: "swing", //{NEW} String: Determines the easing method used in jQuery transitions. Most jQuery easing plugin methods are supported!
direction: "horizontal", //String: Select the sliding direction, "horizontal" or "vertical"
reverse: false, //{NEW} Boolean: Reverse the animation direction
animationLoop: true, //Boolean: Should the animation loop? If false, directionNav will received "disable" classes at either end
smoothHeight: false, //{NEW} Boolean: Allow height of the slider to animate smoothly in horizontal mode
startAt: 0, //Integer: The slide that the slider should start on. Array notation (0 = first slide)
slideshow: true, //Boolean: Animate slider automatically
slideshowSpeed: 7000, //Integer: Set the speed of the slideshow cycling, in milliseconds
animationSpeed: 600, //Integer: Set the speed of animations, in milliseconds
initDelay: 0, //{NEW} Integer: Set an initialization delay, in milliseconds
randomize: false, //Boolean: Randomize slide order
fadeFirstSlide: true, //Boolean: Fade in the first slide when animation type is "fade"
thumbCaptions: false, //Boolean: Whether or not to put captions on thumbnails when using the "thumbnails" controlNav.
// Usability features
pauseOnAction: true, //Boolean: Pause the slideshow when interacting with control elements, highly recommended.
pauseOnHover: false, //Boolean: Pause the slideshow when hovering over slider, then resume when no longer hovering
pauseInvisible: true, //{NEW} Boolean: Pause the slideshow when tab is invisible, resume when visible. Provides better UX, lower CPU usage.
useCSS: true, //{NEW} Boolean: Slider will use CSS3 3D Transforms
touch: true, //{NEW} Boolean: Allow touch swipe navigation of the slider on touch-enabled devices
video: false, //{NEW} Boolean: If using video in the slider, will prevent CSS3 3D Transforms to avoid graphical glitches
// Primary Controls
controlNav: true, //Boolean: Create navigation for paging control of each slide? Note: Leave true for manualControls usage
directionNav: true, //Boolean: Create navigation for previous/next navigation? (true/false)
prevText: "Previous", //String: Set the text for the "previous" directionNav item
nextText: "Next", //String: Set the text for the "next" directionNav item
// Secondary Navigation
keyboard: true, //Boolean: Allow slider navigating via keyboard left/right keys
multipleKeyboard: false, //{NEW} Boolean: Allow keyboard navigation to affect multiple sliders. Default behavior cuts out keyboard navigation with more than one slider present.
mousewheel: false, //{UPDATED} Boolean: Requires jquery.mousewheel.js (https://github.com/brandonaaron/jquery-mousewheel) - Allows slider navigating via mousewheel
pausePlay: false, //Boolean: Create pause/play dynamic element
pauseText: "Pause", //String: Set the text for the "pause" pausePlay item
playText: "Play", //String: Set the text for the "play" pausePlay item
// Special properties
controlsContainer: "", //{UPDATED} jQuery Object/Selector: Declare which container the navigation elements should be appended too. Default container is the FlexSlider element. Example use would be $(".flexslider-container"). Property is ignored if given element is not found.
manualControls: "", //{UPDATED} jQuery Object/Selector: Declare custom control navigation. Examples would be $(".flex-control-nav li") or "#tabs-nav li img", etc. The number of elements in your controlNav should match the number of slides/tabs.
customDirectionNav: "", //{NEW} jQuery Object/Selector: Custom prev / next button. Must be two jQuery elements. In order to make the events work they have to have the classes "prev" and "next" (plus namespace)
sync: "", //{NEW} Selector: Mirror the actions performed on this slider with another slider. Use with care.
asNavFor: "", //{NEW} Selector: Internal property exposed for turning the slider into a thumbnail navigation for another slider
// Carousel Options
itemWidth: 0, //{NEW} Integer: Box-model width of individual carousel items, including horizontal borders and padding.
itemMargin: 0, //{NEW} Integer: Margin between carousel items.
minItems: 1, //{NEW} Integer: Minimum number of carousel items that should be visible. Items will resize fluidly when below this.
maxItems: 0, //{NEW} Integer: Maximum number of carousel items that should be visible. Items will resize fluidly when above this limit.
move: 0, //{NEW} Integer: Number of carousel items that should move on animation. If 0, slider will move all visible items.
allowOneSlide: true, //{NEW} Boolean: Whether or not to allow a slider comprised of a single slide
// Browser Specific
isFirefox: false, // {NEW} Boolean: Set to true when Firefox is the browser used.
// Callback API
start: function(){}, //Callback: function(slider) - Fires when the slider loads the first slide
before: function(){}, //Callback: function(slider) - Fires asynchronously with each slider animation
after: function(){}, //Callback: function(slider) - Fires after each slider animation completes
end: function(){}, //Callback: function(slider) - Fires when the slider reaches the last slide (asynchronous)
added: function(){}, //{NEW} Callback: function(slider) - Fires after a slide is added
removed: function(){}, //{NEW} Callback: function(slider) - Fires after a slide is removed
init: function() {}, //{NEW} Callback: function(slider) - Fires after the slider is initially setup
rtl: false //{NEW} Boolean: Whether or not to enable RTL mode
};
//FlexSlider: Plugin Function
$.fn.flexslider = function(options) {
if (options === undefined) { options = {}; }
if (typeof options === "object") {
return this.each(function() {
var $this = $(this),
selector = (options.selector) ? options.selector : ".slides > li",
$slides = $this.find(selector);
if ( ( $slides.length === 1 && options.allowOneSlide === false ) || $slides.length === 0 ) {
var fadeIn = [{ opacity: 0 }, { opacity: 1 }];
if ($slides.length) { $slides[0].animate(fadeIn, 400); }
if (options.start) { options.start($this); }
} else if ($this.data('flexslider') === undefined) {
new $.flexslider(this, options);
}
});
} else {
// Helper strings to quickly perform functions on the slider
var $slider = $(this).data('flexslider');
switch (options) {
case "play": $slider.play(); break;
case "pause": $slider.pause(); break;
case "stop": $slider.stop(); break;
case "next": $slider.flexAnimate($slider.getTarget("next"), true); break;
case "prev":
case "previous": $slider.flexAnimate($slider.getTarget("prev"), true); break;
default: if (typeof options === "number") { $slider.flexAnimate(options, true); }
}
}
};
})(jQuery);
// source --> https://braustelle.com/wp-content/plugins/woocommerce/assets/js/photoswipe/photoswipe.js?ver=4.1.1-wc.10.5.2
/*! PhotoSwipe - v4.1.3 - 2019-01-08
* http://photoswipe.com
* Copyright (c) 2019 Dmitry Semenov; */
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
define(factory);
} else if (typeof exports === 'object') {
module.exports = factory();
} else {
root.PhotoSwipe = factory();
}
})(this, function () {
'use strict';
var PhotoSwipe = function(template, UiClass, items, options){
/*>>framework-bridge*/
/**
*
* Set of generic functions used by gallery.
*
* You're free to modify anything here as long as functionality is kept.
*
*/
var framework = {
features: null,
bind: function(target, type, listener, unbind) {
var methodName = (unbind ? 'remove' : 'add') + 'EventListener';
type = type.split(' ');
for(var i = 0; i < type.length; i++) {
if(type[i]) {
target[methodName]( type[i], listener, false);
}
}
},
isArray: function(obj) {
return (obj instanceof Array);
},
createEl: function(classes, tag) {
var el = document.createElement(tag || 'div');
if(classes) {
el.className = classes;
}
return el;
},
getScrollY: function() {
var yOffset = window.pageYOffset;
return yOffset !== undefined ? yOffset : document.documentElement.scrollTop;
},
unbind: function(target, type, listener) {
framework.bind(target,type,listener,true);
},
removeClass: function(el, className) {
var reg = new RegExp('(\\s|^)' + className + '(\\s|$)');
el.className = el.className.replace(reg, ' ').replace(/^\s\s*/, '').replace(/\s\s*$/, '');
},
addClass: function(el, className) {
if( !framework.hasClass(el,className) ) {
el.className += (el.className ? ' ' : '') + className;
}
},
hasClass: function(el, className) {
return el.className && new RegExp('(^|\\s)' + className + '(\\s|$)').test(el.className);
},
getChildByClass: function(parentEl, childClassName) {
var node = parentEl.firstChild;
while(node) {
if( framework.hasClass(node, childClassName) ) {
return node;
}
node = node.nextSibling;
}
},
arraySearch: function(array, value, key) {
var i = array.length;
while(i--) {
if(array[i][key] === value) {
return i;
}
}
return -1;
},
extend: function(o1, o2, preventOverwrite) {
for (var prop in o2) {
if (o2.hasOwnProperty(prop)) {
if(preventOverwrite && o1.hasOwnProperty(prop)) {
continue;
}
o1[prop] = o2[prop];
}
}
},
easing: {
sine: {
out: function(k) {
return Math.sin(k * (Math.PI / 2));
},
inOut: function(k) {
return - (Math.cos(Math.PI * k) - 1) / 2;
}
},
cubic: {
out: function(k) {
return --k * k * k + 1;
}
}
/*
elastic: {
out: function ( k ) {
var s, a = 0.1, p = 0.4;
if ( k === 0 ) return 0;
if ( k === 1 ) return 1;
if ( !a || a < 1 ) { a = 1; s = p / 4; }
else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );
return ( a * Math.pow( 2, - 10 * k) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) + 1 );
},
},
back: {
out: function ( k ) {
var s = 1.70158;
return --k * k * ( ( s + 1 ) * k + s ) + 1;
}
}
*/
},
/**
*
* @return {object}
*
* {
* raf : request animation frame function
* caf : cancel animation frame function
* transfrom : transform property key (with vendor), or null if not supported
* oldIE : IE8 or below
* }
*
*/
detectFeatures: function() {
if(framework.features) {
return framework.features;
}
var helperEl = framework.createEl(),
helperStyle = helperEl.style,
vendor = '',
features = {};
// IE8 and below
features.oldIE = document.all && !document.addEventListener;
features.touch = 'ontouchstart' in window;
if(window.requestAnimationFrame) {
features.raf = window.requestAnimationFrame;
features.caf = window.cancelAnimationFrame;
}
features.pointerEvent = !!(window.PointerEvent) || navigator.msPointerEnabled;
// fix false-positive detection of old Android in new IE
// (IE11 ua string contains "Android 4.0")
if(!features.pointerEvent) {
var ua = navigator.userAgent;
// Detect if device is iPhone or iPod and if it's older than iOS 8
// http://stackoverflow.com/a/14223920
//
// This detection is made because of buggy top/bottom toolbars
// that don't trigger window.resize event.
// For more info refer to _isFixedPosition variable in core.js
if (/iP(hone|od)/.test(navigator.platform)) {
var v = (navigator.appVersion).match(/OS (\d+)_(\d+)_?(\d+)?/);
if(v && v.length > 0) {
v = parseInt(v[1], 10);
if(v >= 1 && v < 8 ) {
features.isOldIOSPhone = true;
}
}
}
// Detect old Android (before KitKat)
// due to bugs related to position:fixed
// http://stackoverflow.com/questions/7184573/pick-up-the-android-version-in-the-browser-by-javascript
var match = ua.match(/Android\s([0-9\.]*)/);
var androidversion = match ? match[1] : 0;
androidversion = parseFloat(androidversion);
if(androidversion >= 1 ) {
if(androidversion < 4.4) {
features.isOldAndroid = true; // for fixed position bug & performance
}
features.androidVersion = androidversion; // for touchend bug
}
features.isMobileOpera = /opera mini|opera mobi/i.test(ua);
// p.s. yes, yes, UA sniffing is bad, propose your solution for above bugs.
}
var styleChecks = ['transform', 'perspective', 'animationName'],
vendors = ['', 'webkit','Moz','ms','O'],
styleCheckItem,
styleName;
for(var i = 0; i < 4; i++) {
vendor = vendors[i];
for(var a = 0; a < 3; a++) {
styleCheckItem = styleChecks[a];
// uppercase first letter of property name, if vendor is present
styleName = vendor + (vendor ?
styleCheckItem.charAt(0).toUpperCase() + styleCheckItem.slice(1) :
styleCheckItem);
if(!features[styleCheckItem] && styleName in helperStyle ) {
features[styleCheckItem] = styleName;
}
}
if(vendor && !features.raf) {
vendor = vendor.toLowerCase();
features.raf = window[vendor+'RequestAnimationFrame'];
if(features.raf) {
features.caf = window[vendor+'CancelAnimationFrame'] ||
window[vendor+'CancelRequestAnimationFrame'];
}
}
}
if(!features.raf) {
var lastTime = 0;
features.raf = function(fn) {
var currTime = new Date().getTime();
var timeToCall = Math.max(0, 16 - (currTime - lastTime));
var id = window.setTimeout(function() { fn(currTime + timeToCall); }, timeToCall);
lastTime = currTime + timeToCall;
return id;
};
features.caf = function(id) { clearTimeout(id); };
}
// Detect SVG support
features.svg = !!document.createElementNS &&
!!document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGRect;
framework.features = features;
return features;
}
};
framework.detectFeatures();
// Override addEventListener for old versions of IE
if(framework.features.oldIE) {
framework.bind = function(target, type, listener, unbind) {
type = type.split(' ');
var methodName = (unbind ? 'detach' : 'attach') + 'Event',
evName,
_handleEv = function() {
listener.handleEvent.call(listener);
};
for(var i = 0; i < type.length; i++) {
evName = type[i];
if(evName) {
if(typeof listener === 'object' && listener.handleEvent) {
if(!unbind) {
listener['oldIE' + evName] = _handleEv;
} else {
if(!listener['oldIE' + evName]) {
return false;
}
}
target[methodName]( 'on' + evName, listener['oldIE' + evName]);
} else {
target[methodName]( 'on' + evName, listener);
}
}
}
};
}
/*>>framework-bridge*/
/*>>core*/
//function(template, UiClass, items, options)
var self = this;
/**
* Static vars, don't change unless you know what you're doing.
*/
var DOUBLE_TAP_RADIUS = 25,
NUM_HOLDERS = 3;
/**
* Options
*/
var _options = {
allowPanToNext:true,
spacing: 0.12,
bgOpacity: 1,
mouseUsed: false,
loop: true,
pinchToClose: true,
closeOnScroll: true,
closeOnVerticalDrag: true,
verticalDragRange: 0.75,
hideAnimationDuration: 333,
showAnimationDuration: 333,
showHideOpacity: false,
focus: true,
escKey: true,
arrowKeys: true,
mainScrollEndFriction: 0.35,
panEndFriction: 0.35,
isClickableElement: function(el) {
return el.tagName === 'A';
},
getDoubleTapZoom: function(isMouseClick, item) {
if(isMouseClick) {
return 1;
} else {
return item.initialZoomLevel < 0.7 ? 1 : 1.33;
}
},
maxSpreadZoom: 1.33,
modal: true,
// not fully implemented yet
scaleMode: 'fit' // TODO
};
framework.extend(_options, options);
/**
* Private helper variables & functions
*/
var _getEmptyPoint = function() {
return {x:0,y:0};
};
var _isOpen,
_isDestroying,
_closedByScroll,
_currentItemIndex,
_containerStyle,
_containerShiftIndex,
_currPanDist = _getEmptyPoint(),
_startPanOffset = _getEmptyPoint(),
_panOffset = _getEmptyPoint(),
_upMoveEvents, // drag move, drag end & drag cancel events array
_downEvents, // drag start events array
_globalEventHandlers,
_viewportSize = {},
_currZoomLevel,
_startZoomLevel,
_translatePrefix,
_translateSufix,
_updateSizeInterval,
_itemsNeedUpdate,
_currPositionIndex = 0,
_offset = {},
_slideSize = _getEmptyPoint(), // size of slide area, including spacing
_itemHolders,
_prevItemIndex,
_indexDiff = 0, // difference of indexes since last content update
_dragStartEvent,
_dragMoveEvent,
_dragEndEvent,
_dragCancelEvent,
_transformKey,
_pointerEventEnabled,
_isFixedPosition = true,
_likelyTouchDevice,
_modules = [],
_requestAF,
_cancelAF,
_initalClassName,
_initalWindowScrollY,
_oldIE,
_currentWindowScrollY,
_features,
_windowVisibleSize = {},
_renderMaxResolution = false,
_orientationChangeTimeout,
// Registers PhotoSWipe module (History, Controller ...)
_registerModule = function(name, module) {
framework.extend(self, module.publicMethods);
_modules.push(name);
},
_getLoopedId = function(index) {
var numSlides = _getNumItems();
if(index > numSlides - 1) {
return index - numSlides;
} else if(index < 0) {
return numSlides + index;
}
return index;
},
// Micro bind/trigger
_listeners = {},
_listen = function(name, fn) {
if(!_listeners[name]) {
_listeners[name] = [];
}
return _listeners[name].push(fn);
},
_shout = function(name) {
var listeners = _listeners[name];
if(listeners) {
var args = Array.prototype.slice.call(arguments);
args.shift();
for(var i = 0; i < listeners.length; i++) {
listeners[i].apply(self, args);
}
}
},
_getCurrentTime = function() {
return new Date().getTime();
},
_applyBgOpacity = function(opacity) {
_bgOpacity = opacity;
self.bg.style.opacity = opacity * _options.bgOpacity;
},
_applyZoomTransform = function(styleObj,x,y,zoom,item) {
if(!_renderMaxResolution || (item && item !== self.currItem) ) {
zoom = zoom / (item ? item.fitRatio : self.currItem.fitRatio);
}
styleObj[_transformKey] = _translatePrefix + x + 'px, ' + y + 'px' + _translateSufix + ' scale(' + zoom + ')';
},
_applyCurrentZoomPan = function( allowRenderResolution ) {
if(_currZoomElementStyle) {
if(allowRenderResolution) {
if(_currZoomLevel > self.currItem.fitRatio) {
if(!_renderMaxResolution) {
_setImageSize(self.currItem, false, true);
_renderMaxResolution = true;
}
} else {
if(_renderMaxResolution) {
_setImageSize(self.currItem);
_renderMaxResolution = false;
}
}
}
_applyZoomTransform(_currZoomElementStyle, _panOffset.x, _panOffset.y, _currZoomLevel);
}
},
_applyZoomPanToItem = function(item) {
if(item.container) {
_applyZoomTransform(item.container.style,
item.initialPosition.x,
item.initialPosition.y,
item.initialZoomLevel,
item);
}
},
_setTranslateX = function(x, elStyle) {
elStyle[_transformKey] = _translatePrefix + x + 'px, 0px' + _translateSufix;
},
_moveMainScroll = function(x, dragging) {
if(!_options.loop && dragging) {
var newSlideIndexOffset = _currentItemIndex + (_slideSize.x * _currPositionIndex - x) / _slideSize.x,
delta = Math.round(x - _mainScrollPos.x);
if( (newSlideIndexOffset < 0 && delta > 0) ||
(newSlideIndexOffset >= _getNumItems() - 1 && delta < 0) ) {
x = _mainScrollPos.x + delta * _options.mainScrollEndFriction;
}
}
_mainScrollPos.x = x;
_setTranslateX(x, _containerStyle);
},
_calculatePanOffset = function(axis, zoomLevel) {
var m = _midZoomPoint[axis] - _offset[axis];
return _startPanOffset[axis] + _currPanDist[axis] + m - m * ( zoomLevel / _startZoomLevel );
},
_equalizePoints = function(p1, p2) {
p1.x = p2.x;
p1.y = p2.y;
if(p2.id) {
p1.id = p2.id;
}
},
_roundPoint = function(p) {
p.x = Math.round(p.x);
p.y = Math.round(p.y);
},
_mouseMoveTimeout = null,
_onFirstMouseMove = function() {
// Wait until mouse move event is fired at least twice during 100ms
// We do this, because some mobile browsers trigger it on touchstart
if(_mouseMoveTimeout ) {
framework.unbind(document, 'mousemove', _onFirstMouseMove);
framework.addClass(template, 'pswp--has_mouse');
_options.mouseUsed = true;
_shout('mouseUsed');
}
_mouseMoveTimeout = setTimeout(function() {
_mouseMoveTimeout = null;
}, 100);
},
_bindEvents = function() {
framework.bind(document, 'keydown', self);
if(_features.transform) {
// don't bind click event in browsers that don't support transform (mostly IE8)
framework.bind(self.scrollWrap, 'click', self);
}
if(!_options.mouseUsed) {
framework.bind(document, 'mousemove', _onFirstMouseMove);
}
framework.bind(window, 'resize scroll orientationchange', self);
_shout('bindEvents');
},
_unbindEvents = function() {
framework.unbind(window, 'resize scroll orientationchange', self);
framework.unbind(window, 'scroll', _globalEventHandlers.scroll);
framework.unbind(document, 'keydown', self);
framework.unbind(document, 'mousemove', _onFirstMouseMove);
if(_features.transform) {
framework.unbind(self.scrollWrap, 'click', self);
}
if(_isDragging) {
framework.unbind(window, _upMoveEvents, self);
}
clearTimeout(_orientationChangeTimeout);
_shout('unbindEvents');
},
_calculatePanBounds = function(zoomLevel, update) {
var bounds = _calculateItemSize( self.currItem, _viewportSize, zoomLevel );
if(update) {
_currPanBounds = bounds;
}
return bounds;
},
_getMinZoomLevel = function(item) {
if(!item) {
item = self.currItem;
}
return item.initialZoomLevel;
},
_getMaxZoomLevel = function(item) {
if(!item) {
item = self.currItem;
}
return item.w > 0 ? _options.maxSpreadZoom : 1;
},
// Return true if offset is out of the bounds
_modifyDestPanOffset = function(axis, destPanBounds, destPanOffset, destZoomLevel) {
if(destZoomLevel === self.currItem.initialZoomLevel) {
destPanOffset[axis] = self.currItem.initialPosition[axis];
return true;
} else {
destPanOffset[axis] = _calculatePanOffset(axis, destZoomLevel);
if(destPanOffset[axis] > destPanBounds.min[axis]) {
destPanOffset[axis] = destPanBounds.min[axis];
return true;
} else if(destPanOffset[axis] < destPanBounds.max[axis] ) {
destPanOffset[axis] = destPanBounds.max[axis];
return true;
}
}
return false;
},
_setupTransforms = function() {
if(_transformKey) {
// setup 3d transforms
var allow3dTransform = _features.perspective && !_likelyTouchDevice;
_translatePrefix = 'translate' + (allow3dTransform ? '3d(' : '(');
_translateSufix = _features.perspective ? ', 0px)' : ')';
return;
}
// Override zoom/pan/move functions in case old browser is used (most likely IE)
// (so they use left/top/width/height, instead of CSS transform)
_transformKey = 'left';
framework.addClass(template, 'pswp--ie');
_setTranslateX = function(x, elStyle) {
elStyle.left = x + 'px';
};
_applyZoomPanToItem = function(item) {
var zoomRatio = item.fitRatio > 1 ? 1 : item.fitRatio,
s = item.container.style,
w = zoomRatio * item.w,
h = zoomRatio * item.h;
s.width = w + 'px';
s.height = h + 'px';
s.left = item.initialPosition.x + 'px';
s.top = item.initialPosition.y + 'px';
};
_applyCurrentZoomPan = function() {
if(_currZoomElementStyle) {
var s = _currZoomElementStyle,
item = self.currItem,
zoomRatio = item.fitRatio > 1 ? 1 : item.fitRatio,
w = zoomRatio * item.w,
h = zoomRatio * item.h;
s.width = w + 'px';
s.height = h + 'px';
s.left = _panOffset.x + 'px';
s.top = _panOffset.y + 'px';
}
};
},
_onKeyDown = function(e) {
var keydownAction = '';
if(_options.escKey && e.keyCode === 27) {
keydownAction = 'close';
} else if(_options.arrowKeys) {
if(e.keyCode === 37) {
keydownAction = 'prev';
} else if(e.keyCode === 39) {
keydownAction = 'next';
}
}
if(keydownAction) {
// don't do anything if special key pressed to prevent from overriding default browser actions
// e.g. in Chrome on Mac cmd+arrow-left returns to previous page
if( !e.ctrlKey && !e.altKey && !e.shiftKey && !e.metaKey ) {
if(e.preventDefault) {
e.preventDefault();
} else {
e.returnValue = false;
}
self[keydownAction]();
}
}
},
_onGlobalClick = function(e) {
if(!e) {
return;
}
// don't allow click event to pass through when triggering after drag or some other gesture
if(_moved || _zoomStarted || _mainScrollAnimating || _verticalDragInitiated) {
e.preventDefault();
e.stopPropagation();
}
},
_updatePageScrollOffset = function() {
self.setScrollOffset(0, framework.getScrollY());
};
// Micro animation engine
var _animations = {},
_numAnimations = 0,
_stopAnimation = function(name) {
if(_animations[name]) {
if(_animations[name].raf) {
_cancelAF( _animations[name].raf );
}
_numAnimations--;
delete _animations[name];
}
},
_registerStartAnimation = function(name) {
if(_animations[name]) {
_stopAnimation(name);
}
if(!_animations[name]) {
_numAnimations++;
_animations[name] = {};
}
},
_stopAllAnimations = function() {
for (var prop in _animations) {
if( _animations.hasOwnProperty( prop ) ) {
_stopAnimation(prop);
}
}
},
_animateProp = function(name, b, endProp, d, easingFn, onUpdate, onComplete) {
var startAnimTime = _getCurrentTime(), t;
_registerStartAnimation(name);
var animloop = function(){
if ( _animations[name] ) {
t = _getCurrentTime() - startAnimTime; // time diff
//b - beginning (start prop)
//d - anim duration
if ( t >= d ) {
_stopAnimation(name);
onUpdate(endProp);
if(onComplete) {
onComplete();
}
return;
}
onUpdate( (endProp - b) * easingFn(t/d) + b );
_animations[name].raf = _requestAF(animloop);
}
};
animloop();
};
var publicMethods = {
// make a few local variables and functions public
shout: _shout,
listen: _listen,
viewportSize: _viewportSize,
options: _options,
isMainScrollAnimating: function() {
return _mainScrollAnimating;
},
getZoomLevel: function() {
return _currZoomLevel;
},
getCurrentIndex: function() {
return _currentItemIndex;
},
isDragging: function() {
return _isDragging;
},
isZooming: function() {
return _isZooming;
},
setScrollOffset: function(x,y) {
_offset.x = x;
_currentWindowScrollY = _offset.y = y;
_shout('updateScrollOffset', _offset);
},
applyZoomPan: function(zoomLevel,panX,panY,allowRenderResolution) {
_panOffset.x = panX;
_panOffset.y = panY;
_currZoomLevel = zoomLevel;
_applyCurrentZoomPan( allowRenderResolution );
},
init: function() {
if(_isOpen || _isDestroying) {
return;
}
var i;
self.framework = framework; // basic functionality
self.template = template; // root DOM element of PhotoSwipe
self.bg = framework.getChildByClass(template, 'pswp__bg');
_initalClassName = template.className;
_isOpen = true;
_features = framework.detectFeatures();
_requestAF = _features.raf;
_cancelAF = _features.caf;
_transformKey = _features.transform;
_oldIE = _features.oldIE;
self.scrollWrap = framework.getChildByClass(template, 'pswp__scroll-wrap');
self.container = framework.getChildByClass(self.scrollWrap, 'pswp__container');
_containerStyle = self.container.style; // for fast access
// Objects that hold slides (there are only 3 in DOM)
self.itemHolders = _itemHolders = [
{el:self.container.children[0] , wrap:0, index: -1},
{el:self.container.children[1] , wrap:0, index: -1},
{el:self.container.children[2] , wrap:0, index: -1}
];
// hide nearby item holders until initial zoom animation finishes (to avoid extra Paints)
_itemHolders[0].el.style.display = _itemHolders[2].el.style.display = 'none';
_setupTransforms();
// Setup global events
_globalEventHandlers = {
resize: self.updateSize,
// Fixes: iOS 10.3 resize event
// does not update scrollWrap.clientWidth instantly after resize
// https://github.com/dimsemenov/PhotoSwipe/issues/1315
orientationchange: function() {
clearTimeout(_orientationChangeTimeout);
_orientationChangeTimeout = setTimeout(function() {
if(_viewportSize.x !== self.scrollWrap.clientWidth) {
self.updateSize();
}
}, 500);
},
scroll: _updatePageScrollOffset,
keydown: _onKeyDown,
click: _onGlobalClick
};
// disable show/hide effects on old browsers that don't support CSS animations or transforms,
// old IOS, Android and Opera mobile. Blackberry seems to work fine, even older models.
var oldPhone = _features.isOldIOSPhone || _features.isOldAndroid || _features.isMobileOpera;
if(!_features.animationName || !_features.transform || oldPhone) {
_options.showAnimationDuration = _options.hideAnimationDuration = 0;
}
// init modules
for(i = 0; i < _modules.length; i++) {
self['init' + _modules[i]]();
}
// init
if(UiClass) {
var ui = self.ui = new UiClass(self, framework);
ui.init();
}
_shout('firstUpdate');
_currentItemIndex = _currentItemIndex || _options.index || 0;
// validate index
if( isNaN(_currentItemIndex) || _currentItemIndex < 0 || _currentItemIndex >= _getNumItems() ) {
_currentItemIndex = 0;
}
self.currItem = _getItemAt( _currentItemIndex );
if(_features.isOldIOSPhone || _features.isOldAndroid) {
_isFixedPosition = false;
}
template.setAttribute('aria-hidden', 'false');
if(_options.modal) {
if(!_isFixedPosition) {
template.style.position = 'absolute';
template.style.top = framework.getScrollY() + 'px';
} else {
template.style.position = 'fixed';
}
}
if(_currentWindowScrollY === undefined) {
_shout('initialLayout');
_currentWindowScrollY = _initalWindowScrollY = framework.getScrollY();
}
// add classes to root element of PhotoSwipe
var rootClasses = 'pswp--open ';
if(_options.mainClass) {
rootClasses += _options.mainClass + ' ';
}
if(_options.showHideOpacity) {
rootClasses += 'pswp--animate_opacity ';
}
rootClasses += _likelyTouchDevice ? 'pswp--touch' : 'pswp--notouch';
rootClasses += _features.animationName ? ' pswp--css_animation' : '';
rootClasses += _features.svg ? ' pswp--svg' : '';
framework.addClass(template, rootClasses);
self.updateSize();
// initial update
_containerShiftIndex = -1;
_indexDiff = null;
for(i = 0; i < NUM_HOLDERS; i++) {
_setTranslateX( (i+_containerShiftIndex) * _slideSize.x, _itemHolders[i].el.style);
}
if(!_oldIE) {
framework.bind(self.scrollWrap, _downEvents, self); // no dragging for old IE
}
_listen('initialZoomInEnd', function() {
self.setContent(_itemHolders[0], _currentItemIndex-1);
self.setContent(_itemHolders[2], _currentItemIndex+1);
_itemHolders[0].el.style.display = _itemHolders[2].el.style.display = 'block';
if(_options.focus) {
// focus causes layout,
// which causes lag during the animation,
// that's why we delay it untill the initial zoom transition ends
template.focus();
}
_bindEvents();
});
// set content for center slide (first time)
self.setContent(_itemHolders[1], _currentItemIndex);
self.updateCurrItem();
_shout('afterInit');
if(!_isFixedPosition) {
// On all versions of iOS lower than 8.0, we check size of viewport every second.
//
// This is done to detect when Safari top & bottom bars appear,
// as this action doesn't trigger any events (like resize).
//
// On iOS8 they fixed this.
//
// 10 Nov 2014: iOS 7 usage ~40%. iOS 8 usage 56%.
_updateSizeInterval = setInterval(function() {
if(!_numAnimations && !_isDragging && !_isZooming && (_currZoomLevel === self.currItem.initialZoomLevel) ) {
self.updateSize();
}
}, 1000);
}
framework.addClass(template, 'pswp--visible');
},
// Close the gallery, then destroy it
close: function() {
if(!_isOpen) {
return;
}
_isOpen = false;
_isDestroying = true;
_shout('close');
_unbindEvents();
_showOrHide(self.currItem, null, true, self.destroy);
},
// destroys the gallery (unbinds events, cleans up intervals and timeouts to avoid memory leaks)
destroy: function() {
_shout('destroy');
if(_showOrHideTimeout) {
clearTimeout(_showOrHideTimeout);
}
template.setAttribute('aria-hidden', 'true');
template.className = _initalClassName;
if(_updateSizeInterval) {
clearInterval(_updateSizeInterval);
}
framework.unbind(self.scrollWrap, _downEvents, self);
// we unbind scroll event at the end, as closing animation may depend on it
framework.unbind(window, 'scroll', self);
_stopDragUpdateLoop();
_stopAllAnimations();
_listeners = null;
},
/**
* Pan image to position
* @param {Number} x
* @param {Number} y
* @param {Boolean} force Will ignore bounds if set to true.
*/
panTo: function(x,y,force) {
if(!force) {
if(x > _currPanBounds.min.x) {
x = _currPanBounds.min.x;
} else if(x < _currPanBounds.max.x) {
x = _currPanBounds.max.x;
}
if(y > _currPanBounds.min.y) {
y = _currPanBounds.min.y;
} else if(y < _currPanBounds.max.y) {
y = _currPanBounds.max.y;
}
}
_panOffset.x = x;
_panOffset.y = y;
_applyCurrentZoomPan();
},
handleEvent: function (e) {
e = e || window.event;
if(_globalEventHandlers[e.type]) {
_globalEventHandlers[e.type](e);
}
},
goTo: function(index) {
index = _getLoopedId(index);
var diff = index - _currentItemIndex;
_indexDiff = diff;
_currentItemIndex = index;
self.currItem = _getItemAt( _currentItemIndex );
_currPositionIndex -= diff;
_moveMainScroll(_slideSize.x * _currPositionIndex);
_stopAllAnimations();
_mainScrollAnimating = false;
self.updateCurrItem();
},
next: function() {
self.goTo( _currentItemIndex + 1);
},
prev: function() {
self.goTo( _currentItemIndex - 1);
},
// update current zoom/pan objects
updateCurrZoomItem: function(emulateSetContent) {
if(emulateSetContent) {
_shout('beforeChange', 0);
}
// itemHolder[1] is middle (current) item
if(_itemHolders[1].el.children.length) {
var zoomElement = _itemHolders[1].el.children[0];
if( framework.hasClass(zoomElement, 'pswp__zoom-wrap') ) {
_currZoomElementStyle = zoomElement.style;
} else {
_currZoomElementStyle = null;
}
} else {
_currZoomElementStyle = null;
}
_currPanBounds = self.currItem.bounds;
_startZoomLevel = _currZoomLevel = self.currItem.initialZoomLevel;
_panOffset.x = _currPanBounds.center.x;
_panOffset.y = _currPanBounds.center.y;
if(emulateSetContent) {
_shout('afterChange');
}
},
invalidateCurrItems: function() {
_itemsNeedUpdate = true;
for(var i = 0; i < NUM_HOLDERS; i++) {
if( _itemHolders[i].item ) {
_itemHolders[i].item.needsUpdate = true;
}
}
},
updateCurrItem: function(beforeAnimation) {
if(_indexDiff === 0) {
return;
}
var diffAbs = Math.abs(_indexDiff),
tempHolder;
if(beforeAnimation && diffAbs < 2) {
return;
}
self.currItem = _getItemAt( _currentItemIndex );
_renderMaxResolution = false;
_shout('beforeChange', _indexDiff);
if(diffAbs >= NUM_HOLDERS) {
_containerShiftIndex += _indexDiff + (_indexDiff > 0 ? -NUM_HOLDERS : NUM_HOLDERS);
diffAbs = NUM_HOLDERS;
}
for(var i = 0; i < diffAbs; i++) {
if(_indexDiff > 0) {
tempHolder = _itemHolders.shift();
_itemHolders[NUM_HOLDERS-1] = tempHolder; // move first to last
_containerShiftIndex++;
_setTranslateX( (_containerShiftIndex+2) * _slideSize.x, tempHolder.el.style);
self.setContent(tempHolder, _currentItemIndex - diffAbs + i + 1 + 1);
} else {
tempHolder = _itemHolders.pop();
_itemHolders.unshift( tempHolder ); // move last to first
_containerShiftIndex--;
_setTranslateX( _containerShiftIndex * _slideSize.x, tempHolder.el.style);
self.setContent(tempHolder, _currentItemIndex + diffAbs - i - 1 - 1);
}
}
// reset zoom/pan on previous item
if(_currZoomElementStyle && Math.abs(_indexDiff) === 1) {
var prevItem = _getItemAt(_prevItemIndex);
if(prevItem.initialZoomLevel !== _currZoomLevel) {
_calculateItemSize(prevItem , _viewportSize );
_setImageSize(prevItem);
_applyZoomPanToItem( prevItem );
}
}
// reset diff after update
_indexDiff = 0;
self.updateCurrZoomItem();
_prevItemIndex = _currentItemIndex;
_shout('afterChange');
},
updateSize: function(force) {
if(!_isFixedPosition && _options.modal) {
var windowScrollY = framework.getScrollY();
if(_currentWindowScrollY !== windowScrollY) {
template.style.top = windowScrollY + 'px';
_currentWindowScrollY = windowScrollY;
}
if(!force && _windowVisibleSize.x === window.innerWidth && _windowVisibleSize.y === window.innerHeight) {
return;
}
_windowVisibleSize.x = window.innerWidth;
_windowVisibleSize.y = window.innerHeight;
//template.style.width = _windowVisibleSize.x + 'px';
template.style.height = _windowVisibleSize.y + 'px';
}
_viewportSize.x = self.scrollWrap.clientWidth;
_viewportSize.y = self.scrollWrap.clientHeight;
_updatePageScrollOffset();
_slideSize.x = _viewportSize.x + Math.round(_viewportSize.x * _options.spacing);
_slideSize.y = _viewportSize.y;
_moveMainScroll(_slideSize.x * _currPositionIndex);
_shout('beforeResize'); // even may be used for example to switch image sources
// don't re-calculate size on inital size update
if(_containerShiftIndex !== undefined) {
var holder,
item,
hIndex;
for(var i = 0; i < NUM_HOLDERS; i++) {
holder = _itemHolders[i];
_setTranslateX( (i+_containerShiftIndex) * _slideSize.x, holder.el.style);
hIndex = _currentItemIndex+i-1;
if(_options.loop && _getNumItems() > 2) {
hIndex = _getLoopedId(hIndex);
}
// update zoom level on items and refresh source (if needsUpdate)
item = _getItemAt( hIndex );
// re-render gallery item if `needsUpdate`,
// or doesn't have `bounds` (entirely new slide object)
if( item && (_itemsNeedUpdate || item.needsUpdate || !item.bounds) ) {
self.cleanSlide( item );
self.setContent( holder, hIndex );
// if "center" slide
if(i === 1) {
self.currItem = item;
self.updateCurrZoomItem(true);
}
item.needsUpdate = false;
} else if(holder.index === -1 && hIndex >= 0) {
// add content first time
self.setContent( holder, hIndex );
}
if(item && item.container) {
_calculateItemSize(item, _viewportSize);
_setImageSize(item);
_applyZoomPanToItem( item );
}
}
_itemsNeedUpdate = false;
}
_startZoomLevel = _currZoomLevel = self.currItem.initialZoomLevel;
_currPanBounds = self.currItem.bounds;
if(_currPanBounds) {
_panOffset.x = _currPanBounds.center.x;
_panOffset.y = _currPanBounds.center.y;
_applyCurrentZoomPan( true );
}
_shout('resize');
},
// Zoom current item to
zoomTo: function(destZoomLevel, centerPoint, speed, easingFn, updateFn) {
/*
if(destZoomLevel === 'fit') {
destZoomLevel = self.currItem.fitRatio;
} else if(destZoomLevel === 'fill') {
destZoomLevel = self.currItem.fillRatio;
}
*/
if(centerPoint) {
_startZoomLevel = _currZoomLevel;
_midZoomPoint.x = Math.abs(centerPoint.x) - _panOffset.x ;
_midZoomPoint.y = Math.abs(centerPoint.y) - _panOffset.y ;
_equalizePoints(_startPanOffset, _panOffset);
}
var destPanBounds = _calculatePanBounds(destZoomLevel, false),
destPanOffset = {};
_modifyDestPanOffset('x', destPanBounds, destPanOffset, destZoomLevel);
_modifyDestPanOffset('y', destPanBounds, destPanOffset, destZoomLevel);
var initialZoomLevel = _currZoomLevel;
var initialPanOffset = {
x: _panOffset.x,
y: _panOffset.y
};
_roundPoint(destPanOffset);
var onUpdate = function(now) {
if(now === 1) {
_currZoomLevel = destZoomLevel;
_panOffset.x = destPanOffset.x;
_panOffset.y = destPanOffset.y;
} else {
_currZoomLevel = (destZoomLevel - initialZoomLevel) * now + initialZoomLevel;
_panOffset.x = (destPanOffset.x - initialPanOffset.x) * now + initialPanOffset.x;
_panOffset.y = (destPanOffset.y - initialPanOffset.y) * now + initialPanOffset.y;
}
if(updateFn) {
updateFn(now);
}
_applyCurrentZoomPan( now === 1 );
};
if(speed) {
_animateProp('customZoomTo', 0, 1, speed, easingFn || framework.easing.sine.inOut, onUpdate);
} else {
onUpdate(1);
}
}
};
/*>>core*/
/*>>gestures*/
/**
* Mouse/touch/pointer event handlers.
*
* separated from @core.js for readability
*/
var MIN_SWIPE_DISTANCE = 30,
DIRECTION_CHECK_OFFSET = 10; // amount of pixels to drag to determine direction of swipe
var _gestureStartTime,
_gestureCheckSpeedTime,
// pool of objects that are used during dragging of zooming
p = {}, // first point
p2 = {}, // second point (for zoom gesture)
delta = {},
_currPoint = {},
_startPoint = {},
_currPointers = [],
_startMainScrollPos = {},
_releaseAnimData,
_posPoints = [], // array of points during dragging, used to determine type of gesture
_tempPoint = {},
_isZoomingIn,
_verticalDragInitiated,
_oldAndroidTouchEndTimeout,
_currZoomedItemIndex = 0,
_centerPoint = _getEmptyPoint(),
_lastReleaseTime = 0,
_isDragging, // at least one pointer is down
_isMultitouch, // at least two _pointers are down
_zoomStarted, // zoom level changed during zoom gesture
_moved,
_dragAnimFrame,
_mainScrollShifted,
_currentPoints, // array of current touch points
_isZooming,
_currPointsDistance,
_startPointsDistance,
_currPanBounds,
_mainScrollPos = _getEmptyPoint(),
_currZoomElementStyle,
_mainScrollAnimating, // true, if animation after swipe gesture is running
_midZoomPoint = _getEmptyPoint(),
_currCenterPoint = _getEmptyPoint(),
_direction,
_isFirstMove,
_opacityChanged,
_bgOpacity,
_wasOverInitialZoom,
_isEqualPoints = function(p1, p2) {
return p1.x === p2.x && p1.y === p2.y;
},
_isNearbyPoints = function(touch0, touch1) {
return Math.abs(touch0.x - touch1.x) < DOUBLE_TAP_RADIUS && Math.abs(touch0.y - touch1.y) < DOUBLE_TAP_RADIUS;
},
_calculatePointsDistance = function(p1, p2) {
_tempPoint.x = Math.abs( p1.x - p2.x );
_tempPoint.y = Math.abs( p1.y - p2.y );
return Math.sqrt(_tempPoint.x * _tempPoint.x + _tempPoint.y * _tempPoint.y);
},
_stopDragUpdateLoop = function() {
if(_dragAnimFrame) {
_cancelAF(_dragAnimFrame);
_dragAnimFrame = null;
}
},
_dragUpdateLoop = function() {
if(_isDragging) {
_dragAnimFrame = _requestAF(_dragUpdateLoop);
_renderMovement();
}
},
_canPan = function() {
return !(_options.scaleMode === 'fit' && _currZoomLevel === self.currItem.initialZoomLevel);
},
// find the closest parent DOM element
_closestElement = function(el, fn) {
if(!el || el === document) {
return false;
}
// don't search elements above pswp__scroll-wrap
if(el.getAttribute('class') && el.getAttribute('class').indexOf('pswp__scroll-wrap') > -1 ) {
return false;
}
if( fn(el) ) {
return el;
}
return _closestElement(el.parentNode, fn);
},
_preventObj = {},
_preventDefaultEventBehaviour = function(e, isDown) {
_preventObj.prevent = !_closestElement(e.target, _options.isClickableElement);
_shout('preventDragEvent', e, isDown, _preventObj);
return _preventObj.prevent;
},
_convertTouchToPoint = function(touch, p) {
p.x = touch.pageX;
p.y = touch.pageY;
p.id = touch.identifier;
return p;
},
_findCenterOfPoints = function(p1, p2, pCenter) {
pCenter.x = (p1.x + p2.x) * 0.5;
pCenter.y = (p1.y + p2.y) * 0.5;
},
_pushPosPoint = function(time, x, y) {
if(time - _gestureCheckSpeedTime > 50) {
var o = _posPoints.length > 2 ? _posPoints.shift() : {};
o.x = x;
o.y = y;
_posPoints.push(o);
_gestureCheckSpeedTime = time;
}
},
_calculateVerticalDragOpacityRatio = function() {
var yOffset = _panOffset.y - self.currItem.initialPosition.y; // difference between initial and current position
return 1 - Math.abs( yOffset / (_viewportSize.y / 2) );
},
// points pool, reused during touch events
_ePoint1 = {},
_ePoint2 = {},
_tempPointsArr = [],
_tempCounter,
_getTouchPoints = function(e) {
// clean up previous points, without recreating array
while(_tempPointsArr.length > 0) {
_tempPointsArr.pop();
}
if(!_pointerEventEnabled) {
if(e.type.indexOf('touch') > -1) {
if(e.touches && e.touches.length > 0) {
_tempPointsArr[0] = _convertTouchToPoint(e.touches[0], _ePoint1);
if(e.touches.length > 1) {
_tempPointsArr[1] = _convertTouchToPoint(e.touches[1], _ePoint2);
}
}
} else {
_ePoint1.x = e.pageX;
_ePoint1.y = e.pageY;
_ePoint1.id = '';
_tempPointsArr[0] = _ePoint1;//_ePoint1;
}
} else {
_tempCounter = 0;
// we can use forEach, as pointer events are supported only in modern browsers
_currPointers.forEach(function(p) {
if(_tempCounter === 0) {
_tempPointsArr[0] = p;
} else if(_tempCounter === 1) {
_tempPointsArr[1] = p;
}
_tempCounter++;
});
}
return _tempPointsArr;
},
_panOrMoveMainScroll = function(axis, delta) {
var panFriction,
overDiff = 0,
newOffset = _panOffset[axis] + delta[axis],
startOverDiff,
dir = delta[axis] > 0,
newMainScrollPosition = _mainScrollPos.x + delta.x,
mainScrollDiff = _mainScrollPos.x - _startMainScrollPos.x,
newPanPos,
newMainScrollPos;
// calculate fdistance over the bounds and friction
if(newOffset > _currPanBounds.min[axis] || newOffset < _currPanBounds.max[axis]) {
panFriction = _options.panEndFriction;
// Linear increasing of friction, so at 1/4 of viewport it's at max value.
// Looks not as nice as was expected. Left for history.
// panFriction = (1 - (_panOffset[axis] + delta[axis] + panBounds.min[axis]) / (_viewportSize[axis] / 4) );
} else {
panFriction = 1;
}
newOffset = _panOffset[axis] + delta[axis] * panFriction;
// move main scroll or start panning
if(_options.allowPanToNext || _currZoomLevel === self.currItem.initialZoomLevel) {
if(!_currZoomElementStyle) {
newMainScrollPos = newMainScrollPosition;
} else if(_direction === 'h' && axis === 'x' && !_zoomStarted ) {
if(dir) {
if(newOffset > _currPanBounds.min[axis]) {
panFriction = _options.panEndFriction;
overDiff = _currPanBounds.min[axis] - newOffset;
startOverDiff = _currPanBounds.min[axis] - _startPanOffset[axis];
}
// drag right
if( (startOverDiff <= 0 || mainScrollDiff < 0) && _getNumItems() > 1 ) {
newMainScrollPos = newMainScrollPosition;
if(mainScrollDiff < 0 && newMainScrollPosition > _startMainScrollPos.x) {
newMainScrollPos = _startMainScrollPos.x;
}
} else {
if(_currPanBounds.min.x !== _currPanBounds.max.x) {
newPanPos = newOffset;
}
}
} else {
if(newOffset < _currPanBounds.max[axis] ) {
panFriction =_options.panEndFriction;
overDiff = newOffset - _currPanBounds.max[axis];
startOverDiff = _startPanOffset[axis] - _currPanBounds.max[axis];
}
if( (startOverDiff <= 0 || mainScrollDiff > 0) && _getNumItems() > 1 ) {
newMainScrollPos = newMainScrollPosition;
if(mainScrollDiff > 0 && newMainScrollPosition < _startMainScrollPos.x) {
newMainScrollPos = _startMainScrollPos.x;
}
} else {
if(_currPanBounds.min.x !== _currPanBounds.max.x) {
newPanPos = newOffset;
}
}
}
//
}
if(axis === 'x') {
if(newMainScrollPos !== undefined) {
_moveMainScroll(newMainScrollPos, true);
if(newMainScrollPos === _startMainScrollPos.x) {
_mainScrollShifted = false;
} else {
_mainScrollShifted = true;
}
}
if(_currPanBounds.min.x !== _currPanBounds.max.x) {
if(newPanPos !== undefined) {
_panOffset.x = newPanPos;
} else if(!_mainScrollShifted) {
_panOffset.x += delta.x * panFriction;
}
}
return newMainScrollPos !== undefined;
}
}
if(!_mainScrollAnimating) {
if(!_mainScrollShifted) {
if(_currZoomLevel > self.currItem.fitRatio) {
_panOffset[axis] += delta[axis] * panFriction;
}
}
}
},
// Pointerdown/touchstart/mousedown handler
_onDragStart = function(e) {
// Allow dragging only via left mouse button.
// As this handler is not added in IE8 - we ignore e.which
//
// http://www.quirksmode.org/js/events_properties.html
// https://developer.mozilla.org/en-US/docs/Web/API/event.button
if(e.type === 'mousedown' && e.button > 0 ) {
return;
}
if(_initialZoomRunning) {
e.preventDefault();
return;
}
if(_oldAndroidTouchEndTimeout && e.type === 'mousedown') {
return;
}
if(_preventDefaultEventBehaviour(e, true)) {
e.preventDefault();
}
_shout('pointerDown');
if(_pointerEventEnabled) {
var pointerIndex = framework.arraySearch(_currPointers, e.pointerId, 'id');
if(pointerIndex < 0) {
pointerIndex = _currPointers.length;
}
_currPointers[pointerIndex] = {x:e.pageX, y:e.pageY, id: e.pointerId};
}
var startPointsList = _getTouchPoints(e),
numPoints = startPointsList.length;
_currentPoints = null;
_stopAllAnimations();
// init drag
if(!_isDragging || numPoints === 1) {
_isDragging = _isFirstMove = true;
framework.bind(window, _upMoveEvents, self);
_isZoomingIn =
_wasOverInitialZoom =
_opacityChanged =
_verticalDragInitiated =
_mainScrollShifted =
_moved =
_isMultitouch =
_zoomStarted = false;
_direction = null;
_shout('firstTouchStart', startPointsList);
_equalizePoints(_startPanOffset, _panOffset);
_currPanDist.x = _currPanDist.y = 0;
_equalizePoints(_currPoint, startPointsList[0]);
_equalizePoints(_startPoint, _currPoint);
//_equalizePoints(_startMainScrollPos, _mainScrollPos);
_startMainScrollPos.x = _slideSize.x * _currPositionIndex;
_posPoints = [{
x: _currPoint.x,
y: _currPoint.y
}];
_gestureCheckSpeedTime = _gestureStartTime = _getCurrentTime();
//_mainScrollAnimationEnd(true);
_calculatePanBounds( _currZoomLevel, true );
// Start rendering
_stopDragUpdateLoop();
_dragUpdateLoop();
}
// init zoom
if(!_isZooming && numPoints > 1 && !_mainScrollAnimating && !_mainScrollShifted) {
_startZoomLevel = _currZoomLevel;
_zoomStarted = false; // true if zoom changed at least once
_isZooming = _isMultitouch = true;
_currPanDist.y = _currPanDist.x = 0;
_equalizePoints(_startPanOffset, _panOffset);
_equalizePoints(p, startPointsList[0]);
_equalizePoints(p2, startPointsList[1]);
_findCenterOfPoints(p, p2, _currCenterPoint);
_midZoomPoint.x = Math.abs(_currCenterPoint.x) - _panOffset.x;
_midZoomPoint.y = Math.abs(_currCenterPoint.y) - _panOffset.y;
_currPointsDistance = _startPointsDistance = _calculatePointsDistance(p, p2);
}
},
// Pointermove/touchmove/mousemove handler
_onDragMove = function(e) {
e.preventDefault();
if(_pointerEventEnabled) {
var pointerIndex = framework.arraySearch(_currPointers, e.pointerId, 'id');
if(pointerIndex > -1) {
var p = _currPointers[pointerIndex];
p.x = e.pageX;
p.y = e.pageY;
}
}
if(_isDragging) {
var touchesList = _getTouchPoints(e);
if(!_direction && !_moved && !_isZooming) {
if(_mainScrollPos.x !== _slideSize.x * _currPositionIndex) {
// if main scroll position is shifted – direction is always horizontal
_direction = 'h';
} else {
var diff = Math.abs(touchesList[0].x - _currPoint.x) - Math.abs(touchesList[0].y - _currPoint.y);
// check the direction of movement
if(Math.abs(diff) >= DIRECTION_CHECK_OFFSET) {
_direction = diff > 0 ? 'h' : 'v';
_currentPoints = touchesList;
}
}
} else {
_currentPoints = touchesList;
}
}
},
//
_renderMovement = function() {
if(!_currentPoints) {
return;
}
var numPoints = _currentPoints.length;
if(numPoints === 0) {
return;
}
_equalizePoints(p, _currentPoints[0]);
delta.x = p.x - _currPoint.x;
delta.y = p.y - _currPoint.y;
if(_isZooming && numPoints > 1) {
// Handle behaviour for more than 1 point
_currPoint.x = p.x;
_currPoint.y = p.y;
// check if one of two points changed
if( !delta.x && !delta.y && _isEqualPoints(_currentPoints[1], p2) ) {
return;
}
_equalizePoints(p2, _currentPoints[1]);
if(!_zoomStarted) {
_zoomStarted = true;
_shout('zoomGestureStarted');
}
// Distance between two points
var pointsDistance = _calculatePointsDistance(p,p2);
var zoomLevel = _calculateZoomLevel(pointsDistance);
// slightly over the of initial zoom level
if(zoomLevel > self.currItem.initialZoomLevel + self.currItem.initialZoomLevel / 15) {
_wasOverInitialZoom = true;
}
// Apply the friction if zoom level is out of the bounds
var zoomFriction = 1,
minZoomLevel = _getMinZoomLevel(),
maxZoomLevel = _getMaxZoomLevel();
if ( zoomLevel < minZoomLevel ) {
if(_options.pinchToClose && !_wasOverInitialZoom && _startZoomLevel <= self.currItem.initialZoomLevel) {
// fade out background if zooming out
var minusDiff = minZoomLevel - zoomLevel;
var percent = 1 - minusDiff / (minZoomLevel / 1.2);
_applyBgOpacity(percent);
_shout('onPinchClose', percent);
_opacityChanged = true;
} else {
zoomFriction = (minZoomLevel - zoomLevel) / minZoomLevel;
if(zoomFriction > 1) {
zoomFriction = 1;
}
zoomLevel = minZoomLevel - zoomFriction * (minZoomLevel / 3);
}
} else if ( zoomLevel > maxZoomLevel ) {
// 1.5 - extra zoom level above the max. E.g. if max is x6, real max 6 + 1.5 = 7.5
zoomFriction = (zoomLevel - maxZoomLevel) / ( minZoomLevel * 6 );
if(zoomFriction > 1) {
zoomFriction = 1;
}
zoomLevel = maxZoomLevel + zoomFriction * minZoomLevel;
}
if(zoomFriction < 0) {
zoomFriction = 0;
}
// distance between touch points after friction is applied
_currPointsDistance = pointsDistance;
// _centerPoint - The point in the middle of two pointers
_findCenterOfPoints(p, p2, _centerPoint);
// paning with two pointers pressed
_currPanDist.x += _centerPoint.x - _currCenterPoint.x;
_currPanDist.y += _centerPoint.y - _currCenterPoint.y;
_equalizePoints(_currCenterPoint, _centerPoint);
_panOffset.x = _calculatePanOffset('x', zoomLevel);
_panOffset.y = _calculatePanOffset('y', zoomLevel);
_isZoomingIn = zoomLevel > _currZoomLevel;
_currZoomLevel = zoomLevel;
_applyCurrentZoomPan();
} else {
// handle behaviour for one point (dragging or panning)
if(!_direction) {
return;
}
if(_isFirstMove) {
_isFirstMove = false;
// subtract drag distance that was used during the detection direction
if( Math.abs(delta.x) >= DIRECTION_CHECK_OFFSET) {
delta.x -= _currentPoints[0].x - _startPoint.x;
}
if( Math.abs(delta.y) >= DIRECTION_CHECK_OFFSET) {
delta.y -= _currentPoints[0].y - _startPoint.y;
}
}
_currPoint.x = p.x;
_currPoint.y = p.y;
// do nothing if pointers position hasn't changed
if(delta.x === 0 && delta.y === 0) {
return;
}
if(_direction === 'v' && _options.closeOnVerticalDrag) {
if(!_canPan()) {
_currPanDist.y += delta.y;
_panOffset.y += delta.y;
var opacityRatio = _calculateVerticalDragOpacityRatio();
_verticalDragInitiated = true;
_shout('onVerticalDrag', opacityRatio);
_applyBgOpacity(opacityRatio);
_applyCurrentZoomPan();
return ;
}
}
_pushPosPoint(_getCurrentTime(), p.x, p.y);
_moved = true;
_currPanBounds = self.currItem.bounds;
var mainScrollChanged = _panOrMoveMainScroll('x', delta);
if(!mainScrollChanged) {
_panOrMoveMainScroll('y', delta);
_roundPoint(_panOffset);
_applyCurrentZoomPan();
}
}
},
// Pointerup/pointercancel/touchend/touchcancel/mouseup event handler
_onDragRelease = function(e) {
if(_features.isOldAndroid ) {
if(_oldAndroidTouchEndTimeout && e.type === 'mouseup') {
return;
}
// on Android (v4.1, 4.2, 4.3 & possibly older)
// ghost mousedown/up event isn't preventable via e.preventDefault,
// which causes fake mousedown event
// so we block mousedown/up for 600ms
if( e.type.indexOf('touch') > -1 ) {
clearTimeout(_oldAndroidTouchEndTimeout);
_oldAndroidTouchEndTimeout = setTimeout(function() {
_oldAndroidTouchEndTimeout = 0;
}, 600);
}
}
_shout('pointerUp');
if(_preventDefaultEventBehaviour(e, false)) {
e.preventDefault();
}
var releasePoint;
if(_pointerEventEnabled) {
var pointerIndex = framework.arraySearch(_currPointers, e.pointerId, 'id');
if(pointerIndex > -1) {
releasePoint = _currPointers.splice(pointerIndex, 1)[0];
if(navigator.msPointerEnabled) {
var MSPOINTER_TYPES = {
4: 'mouse', // event.MSPOINTER_TYPE_MOUSE
2: 'touch', // event.MSPOINTER_TYPE_TOUCH
3: 'pen' // event.MSPOINTER_TYPE_PEN
};
releasePoint.type = MSPOINTER_TYPES[e.pointerType];
if(!releasePoint.type) {
releasePoint.type = e.pointerType || 'mouse';
}
} else {
releasePoint.type = e.pointerType || 'mouse';
}
}
}
var touchList = _getTouchPoints(e),
gestureType,
numPoints = touchList.length;
if(e.type === 'mouseup') {
numPoints = 0;
}
// Do nothing if there were 3 touch points or more
if(numPoints === 2) {
_currentPoints = null;
return true;
}
// if second pointer released
if(numPoints === 1) {
_equalizePoints(_startPoint, touchList[0]);
}
// pointer hasn't moved, send "tap release" point
if(numPoints === 0 && !_direction && !_mainScrollAnimating) {
if(!releasePoint) {
if(e.type === 'mouseup') {
releasePoint = {x: e.pageX, y: e.pageY, type:'mouse'};
} else if(e.changedTouches && e.changedTouches[0]) {
releasePoint = {x: e.changedTouches[0].pageX, y: e.changedTouches[0].pageY, type:'touch'};
}
}
_shout('touchRelease', e, releasePoint);
}
// Difference in time between releasing of two last touch points (zoom gesture)
var releaseTimeDiff = -1;
// Gesture completed, no pointers left
if(numPoints === 0) {
_isDragging = false;
framework.unbind(window, _upMoveEvents, self);
_stopDragUpdateLoop();
if(_isZooming) {
// Two points released at the same time
releaseTimeDiff = 0;
} else if(_lastReleaseTime !== -1) {
releaseTimeDiff = _getCurrentTime() - _lastReleaseTime;
}
}
_lastReleaseTime = numPoints === 1 ? _getCurrentTime() : -1;
if(releaseTimeDiff !== -1 && releaseTimeDiff < 150) {
gestureType = 'zoom';
} else {
gestureType = 'swipe';
}
if(_isZooming && numPoints < 2) {
_isZooming = false;
// Only second point released
if(numPoints === 1) {
gestureType = 'zoomPointerUp';
}
_shout('zoomGestureEnded');
}
_currentPoints = null;
if(!_moved && !_zoomStarted && !_mainScrollAnimating && !_verticalDragInitiated) {
// nothing to animate
return;
}
_stopAllAnimations();
if(!_releaseAnimData) {
_releaseAnimData = _initDragReleaseAnimationData();
}
_releaseAnimData.calculateSwipeSpeed('x');
if(_verticalDragInitiated) {
var opacityRatio = _calculateVerticalDragOpacityRatio();
if(opacityRatio < _options.verticalDragRange) {
self.close();
} else {
var initalPanY = _panOffset.y,
initialBgOpacity = _bgOpacity;
_animateProp('verticalDrag', 0, 1, 300, framework.easing.cubic.out, function(now) {
_panOffset.y = (self.currItem.initialPosition.y - initalPanY) * now + initalPanY;
_applyBgOpacity( (1 - initialBgOpacity) * now + initialBgOpacity );
_applyCurrentZoomPan();
});
_shout('onVerticalDrag', 1);
}
return;
}
// main scroll
if( (_mainScrollShifted || _mainScrollAnimating) && numPoints === 0) {
var itemChanged = _finishSwipeMainScrollGesture(gestureType, _releaseAnimData);
if(itemChanged) {
return;
}
gestureType = 'zoomPointerUp';
}
// prevent zoom/pan animation when main scroll animation runs
if(_mainScrollAnimating) {
return;
}
// Complete simple zoom gesture (reset zoom level if it's out of the bounds)
if(gestureType !== 'swipe') {
_completeZoomGesture();
return;
}
// Complete pan gesture if main scroll is not shifted, and it's possible to pan current image
if(!_mainScrollShifted && _currZoomLevel > self.currItem.fitRatio) {
_completePanGesture(_releaseAnimData);
}
},
// Returns object with data about gesture
// It's created only once and then reused
_initDragReleaseAnimationData = function() {
// temp local vars
var lastFlickDuration,
tempReleasePos;
// s = this
var s = {
lastFlickOffset: {},
lastFlickDist: {},
lastFlickSpeed: {},
slowDownRatio: {},
slowDownRatioReverse: {},
speedDecelerationRatio: {},
speedDecelerationRatioAbs: {},
distanceOffset: {},
backAnimDestination: {},
backAnimStarted: {},
calculateSwipeSpeed: function(axis) {
if( _posPoints.length > 1) {
lastFlickDuration = _getCurrentTime() - _gestureCheckSpeedTime + 50;
tempReleasePos = _posPoints[_posPoints.length-2][axis];
} else {
lastFlickDuration = _getCurrentTime() - _gestureStartTime; // total gesture duration
tempReleasePos = _startPoint[axis];
}
s.lastFlickOffset[axis] = _currPoint[axis] - tempReleasePos;
s.lastFlickDist[axis] = Math.abs(s.lastFlickOffset[axis]);
if(s.lastFlickDist[axis] > 20) {
s.lastFlickSpeed[axis] = s.lastFlickOffset[axis] / lastFlickDuration;
} else {
s.lastFlickSpeed[axis] = 0;
}
if( Math.abs(s.lastFlickSpeed[axis]) < 0.1 ) {
s.lastFlickSpeed[axis] = 0;
}
s.slowDownRatio[axis] = 0.95;
s.slowDownRatioReverse[axis] = 1 - s.slowDownRatio[axis];
s.speedDecelerationRatio[axis] = 1;
},
calculateOverBoundsAnimOffset: function(axis, speed) {
if(!s.backAnimStarted[axis]) {
if(_panOffset[axis] > _currPanBounds.min[axis]) {
s.backAnimDestination[axis] = _currPanBounds.min[axis];
} else if(_panOffset[axis] < _currPanBounds.max[axis]) {
s.backAnimDestination[axis] = _currPanBounds.max[axis];
}
if(s.backAnimDestination[axis] !== undefined) {
s.slowDownRatio[axis] = 0.7;
s.slowDownRatioReverse[axis] = 1 - s.slowDownRatio[axis];
if(s.speedDecelerationRatioAbs[axis] < 0.05) {
s.lastFlickSpeed[axis] = 0;
s.backAnimStarted[axis] = true;
_animateProp('bounceZoomPan'+axis,_panOffset[axis],
s.backAnimDestination[axis],
speed || 300,
framework.easing.sine.out,
function(pos) {
_panOffset[axis] = pos;
_applyCurrentZoomPan();
}
);
}
}
}
},
// Reduces the speed by slowDownRatio (per 10ms)
calculateAnimOffset: function(axis) {
if(!s.backAnimStarted[axis]) {
s.speedDecelerationRatio[axis] = s.speedDecelerationRatio[axis] * (s.slowDownRatio[axis] +
s.slowDownRatioReverse[axis] -
s.slowDownRatioReverse[axis] * s.timeDiff / 10);
s.speedDecelerationRatioAbs[axis] = Math.abs(s.lastFlickSpeed[axis] * s.speedDecelerationRatio[axis]);
s.distanceOffset[axis] = s.lastFlickSpeed[axis] * s.speedDecelerationRatio[axis] * s.timeDiff;
_panOffset[axis] += s.distanceOffset[axis];
}
},
panAnimLoop: function() {
if ( _animations.zoomPan ) {
_animations.zoomPan.raf = _requestAF(s.panAnimLoop);
s.now = _getCurrentTime();
s.timeDiff = s.now - s.lastNow;
s.lastNow = s.now;
s.calculateAnimOffset('x');
s.calculateAnimOffset('y');
_applyCurrentZoomPan();
s.calculateOverBoundsAnimOffset('x');
s.calculateOverBoundsAnimOffset('y');
if (s.speedDecelerationRatioAbs.x < 0.05 && s.speedDecelerationRatioAbs.y < 0.05) {
// round pan position
_panOffset.x = Math.round(_panOffset.x);
_panOffset.y = Math.round(_panOffset.y);
_applyCurrentZoomPan();
_stopAnimation('zoomPan');
return;
}
}
}
};
return s;
},
_completePanGesture = function(animData) {
// calculate swipe speed for Y axis (paanning)
animData.calculateSwipeSpeed('y');
_currPanBounds = self.currItem.bounds;
animData.backAnimDestination = {};
animData.backAnimStarted = {};
// Avoid acceleration animation if speed is too low
if(Math.abs(animData.lastFlickSpeed.x) <= 0.05 && Math.abs(animData.lastFlickSpeed.y) <= 0.05 ) {
animData.speedDecelerationRatioAbs.x = animData.speedDecelerationRatioAbs.y = 0;
// Run pan drag release animation. E.g. if you drag image and release finger without momentum.
animData.calculateOverBoundsAnimOffset('x');
animData.calculateOverBoundsAnimOffset('y');
return true;
}
// Animation loop that controls the acceleration after pan gesture ends
_registerStartAnimation('zoomPan');
animData.lastNow = _getCurrentTime();
animData.panAnimLoop();
},
_finishSwipeMainScrollGesture = function(gestureType, _releaseAnimData) {
var itemChanged;
if(!_mainScrollAnimating) {
_currZoomedItemIndex = _currentItemIndex;
}
var itemsDiff;
if(gestureType === 'swipe') {
var totalShiftDist = _currPoint.x - _startPoint.x,
isFastLastFlick = _releaseAnimData.lastFlickDist.x < 10;
// if container is shifted for more than MIN_SWIPE_DISTANCE,
// and last flick gesture was in right direction
if(totalShiftDist > MIN_SWIPE_DISTANCE &&
(isFastLastFlick || _releaseAnimData.lastFlickOffset.x > 20) ) {
// go to prev item
itemsDiff = -1;
} else if(totalShiftDist < -MIN_SWIPE_DISTANCE &&
(isFastLastFlick || _releaseAnimData.lastFlickOffset.x < -20) ) {
// go to next item
itemsDiff = 1;
}
}
var nextCircle;
if(itemsDiff) {
_currentItemIndex += itemsDiff;
if(_currentItemIndex < 0) {
_currentItemIndex = _options.loop ? _getNumItems()-1 : 0;
nextCircle = true;
} else if(_currentItemIndex >= _getNumItems()) {
_currentItemIndex = _options.loop ? 0 : _getNumItems()-1;
nextCircle = true;
}
if(!nextCircle || _options.loop) {
_indexDiff += itemsDiff;
_currPositionIndex -= itemsDiff;
itemChanged = true;
}
}
var animateToX = _slideSize.x * _currPositionIndex;
var animateToDist = Math.abs( animateToX - _mainScrollPos.x );
var finishAnimDuration;
if(!itemChanged && animateToX > _mainScrollPos.x !== _releaseAnimData.lastFlickSpeed.x > 0) {
// "return to current" duration, e.g. when dragging from slide 0 to -1
finishAnimDuration = 333;
} else {
finishAnimDuration = Math.abs(_releaseAnimData.lastFlickSpeed.x) > 0 ?
animateToDist / Math.abs(_releaseAnimData.lastFlickSpeed.x) :
333;
finishAnimDuration = Math.min(finishAnimDuration, 400);
finishAnimDuration = Math.max(finishAnimDuration, 250);
}
if(_currZoomedItemIndex === _currentItemIndex) {
itemChanged = false;
}
_mainScrollAnimating = true;
_shout('mainScrollAnimStart');
_animateProp('mainScroll', _mainScrollPos.x, animateToX, finishAnimDuration, framework.easing.cubic.out,
_moveMainScroll,
function() {
_stopAllAnimations();
_mainScrollAnimating = false;
_currZoomedItemIndex = -1;
if(itemChanged || _currZoomedItemIndex !== _currentItemIndex) {
self.updateCurrItem();
}
_shout('mainScrollAnimComplete');
}
);
if(itemChanged) {
self.updateCurrItem(true);
}
return itemChanged;
},
_calculateZoomLevel = function(touchesDistance) {
return 1 / _startPointsDistance * touchesDistance * _startZoomLevel;
},
// Resets zoom if it's out of bounds
_completeZoomGesture = function() {
var destZoomLevel = _currZoomLevel,
minZoomLevel = _getMinZoomLevel(),
maxZoomLevel = _getMaxZoomLevel();
if ( _currZoomLevel < minZoomLevel ) {
destZoomLevel = minZoomLevel;
} else if ( _currZoomLevel > maxZoomLevel ) {
destZoomLevel = maxZoomLevel;
}
var destOpacity = 1,
onUpdate,
initialOpacity = _bgOpacity;
if(_opacityChanged && !_isZoomingIn && !_wasOverInitialZoom && _currZoomLevel < minZoomLevel) {
//_closedByScroll = true;
self.close();
return true;
}
if(_opacityChanged) {
onUpdate = function(now) {
_applyBgOpacity( (destOpacity - initialOpacity) * now + initialOpacity );
};
}
self.zoomTo(destZoomLevel, 0, 200, framework.easing.cubic.out, onUpdate);
return true;
};
_registerModule('Gestures', {
publicMethods: {
initGestures: function() {
// helper function that builds touch/pointer/mouse events
var addEventNames = function(pref, down, move, up, cancel) {
_dragStartEvent = pref + down;
_dragMoveEvent = pref + move;
_dragEndEvent = pref + up;
if(cancel) {
_dragCancelEvent = pref + cancel;
} else {
_dragCancelEvent = '';
}
};
_pointerEventEnabled = _features.pointerEvent;
if(_pointerEventEnabled && _features.touch) {
// we don't need touch events, if browser supports pointer events
_features.touch = false;
}
if(_pointerEventEnabled) {
if(navigator.msPointerEnabled) {
// IE10 pointer events are case-sensitive
addEventNames('MSPointer', 'Down', 'Move', 'Up', 'Cancel');
} else {
addEventNames('pointer', 'down', 'move', 'up', 'cancel');
}
} else if(_features.touch) {
addEventNames('touch', 'start', 'move', 'end', 'cancel');
_likelyTouchDevice = true;
} else {
addEventNames('mouse', 'down', 'move', 'up');
}
_upMoveEvents = _dragMoveEvent + ' ' + _dragEndEvent + ' ' + _dragCancelEvent;
_downEvents = _dragStartEvent;
if(_pointerEventEnabled && !_likelyTouchDevice) {
_likelyTouchDevice = (navigator.maxTouchPoints > 1) || (navigator.msMaxTouchPoints > 1);
}
// make variable public
self.likelyTouchDevice = _likelyTouchDevice;
_globalEventHandlers[_dragStartEvent] = _onDragStart;
_globalEventHandlers[_dragMoveEvent] = _onDragMove;
_globalEventHandlers[_dragEndEvent] = _onDragRelease; // the Kraken
if(_dragCancelEvent) {
_globalEventHandlers[_dragCancelEvent] = _globalEventHandlers[_dragEndEvent];
}
// Bind mouse events on device with detected hardware touch support, in case it supports multiple types of input.
if(_features.touch) {
_downEvents += ' mousedown';
_upMoveEvents += ' mousemove mouseup';
_globalEventHandlers.mousedown = _globalEventHandlers[_dragStartEvent];
_globalEventHandlers.mousemove = _globalEventHandlers[_dragMoveEvent];
_globalEventHandlers.mouseup = _globalEventHandlers[_dragEndEvent];
}
if(!_likelyTouchDevice) {
// don't allow pan to next slide from zoomed state on Desktop
_options.allowPanToNext = false;
}
}
}
});
/*>>gestures*/
/*>>show-hide-transition*/
/**
* show-hide-transition.js:
*
* Manages initial opening or closing transition.
*
* If you're not planning to use transition for gallery at all,
* you may set options hideAnimationDuration and showAnimationDuration to 0,
* and just delete startAnimation function.
*
*/
var _showOrHideTimeout,
_showOrHide = function(item, img, out, completeFn) {
if(_showOrHideTimeout) {
clearTimeout(_showOrHideTimeout);
}
_initialZoomRunning = true;
_initialContentSet = true;
// dimensions of small thumbnail {x:,y:,w:}.
// Height is optional, as calculated based on large image.
var thumbBounds;
if(item.initialLayout) {
thumbBounds = item.initialLayout;
item.initialLayout = null;
} else {
thumbBounds = _options.getThumbBoundsFn && _options.getThumbBoundsFn(_currentItemIndex);
}
var duration = out ? _options.hideAnimationDuration : _options.showAnimationDuration;
var onComplete = function() {
_stopAnimation('initialZoom');
if(!out) {
_applyBgOpacity(1);
if(img) {
img.style.display = 'block';
}
framework.addClass(template, 'pswp--animated-in');
_shout('initialZoom' + (out ? 'OutEnd' : 'InEnd'));
} else {
self.template.removeAttribute('style');
self.bg.removeAttribute('style');
}
if(completeFn) {
completeFn();
}
_initialZoomRunning = false;
};
// if bounds aren't provided, just open gallery without animation
if(!duration || !thumbBounds || thumbBounds.x === undefined) {
_shout('initialZoom' + (out ? 'Out' : 'In') );
_currZoomLevel = item.initialZoomLevel;
_equalizePoints(_panOffset, item.initialPosition );
_applyCurrentZoomPan();
template.style.opacity = out ? 0 : 1;
_applyBgOpacity(1);
if(duration) {
setTimeout(function() {
onComplete();
}, duration);
} else {
onComplete();
}
return;
}
var startAnimation = function() {
var closeWithRaf = _closedByScroll,
fadeEverything = !self.currItem.src || self.currItem.loadError || _options.showHideOpacity;
// apply hw-acceleration to image
if(item.miniImg) {
item.miniImg.style.webkitBackfaceVisibility = 'hidden';
}
if(!out) {
_currZoomLevel = thumbBounds.w / item.w;
_panOffset.x = thumbBounds.x;
_panOffset.y = thumbBounds.y - _initalWindowScrollY;
self[fadeEverything ? 'template' : 'bg'].style.opacity = 0.001;
_applyCurrentZoomPan();
}
_registerStartAnimation('initialZoom');
if(out && !closeWithRaf) {
framework.removeClass(template, 'pswp--animated-in');
}
if(fadeEverything) {
if(out) {
framework[ (closeWithRaf ? 'remove' : 'add') + 'Class' ](template, 'pswp--animate_opacity');
} else {
setTimeout(function() {
framework.addClass(template, 'pswp--animate_opacity');
}, 30);
}
}
_showOrHideTimeout = setTimeout(function() {
_shout('initialZoom' + (out ? 'Out' : 'In') );
if(!out) {
// "in" animation always uses CSS transitions (instead of rAF).
// CSS transition work faster here,
// as developer may also want to animate other things,
// like ui on top of sliding area, which can be animated just via CSS
_currZoomLevel = item.initialZoomLevel;
_equalizePoints(_panOffset, item.initialPosition );
_applyCurrentZoomPan();
_applyBgOpacity(1);
if(fadeEverything) {
template.style.opacity = 1;
} else {
_applyBgOpacity(1);
}
_showOrHideTimeout = setTimeout(onComplete, duration + 20);
} else {
// "out" animation uses rAF only when PhotoSwipe is closed by browser scroll, to recalculate position
var destZoomLevel = thumbBounds.w / item.w,
initialPanOffset = {
x: _panOffset.x,
y: _panOffset.y
},
initialZoomLevel = _currZoomLevel,
initalBgOpacity = _bgOpacity,
onUpdate = function(now) {
if(now === 1) {
_currZoomLevel = destZoomLevel;
_panOffset.x = thumbBounds.x;
_panOffset.y = thumbBounds.y - _currentWindowScrollY;
} else {
_currZoomLevel = (destZoomLevel - initialZoomLevel) * now + initialZoomLevel;
_panOffset.x = (thumbBounds.x - initialPanOffset.x) * now + initialPanOffset.x;
_panOffset.y = (thumbBounds.y - _currentWindowScrollY - initialPanOffset.y) * now + initialPanOffset.y;
}
_applyCurrentZoomPan();
if(fadeEverything) {
template.style.opacity = 1 - now;
} else {
_applyBgOpacity( initalBgOpacity - now * initalBgOpacity );
}
};
if(closeWithRaf) {
_animateProp('initialZoom', 0, 1, duration, framework.easing.cubic.out, onUpdate, onComplete);
} else {
onUpdate(1);
_showOrHideTimeout = setTimeout(onComplete, duration + 20);
}
}
}, out ? 25 : 90); // Main purpose of this delay is to give browser time to paint and
// create composite layers of PhotoSwipe UI parts (background, controls, caption, arrows).
// Which avoids lag at the beginning of scale transition.
};
startAnimation();
};
/*>>show-hide-transition*/
/*>>items-controller*/
/**
*
* Controller manages gallery items, their dimensions, and their content.
*
*/
var _items,
_tempPanAreaSize = {},
_imagesToAppendPool = [],
_initialContentSet,
_initialZoomRunning,
_controllerDefaultOptions = {
index: 0,
errorMsg: '',
forceProgressiveLoading: false, // TODO
preload: [1,1],
getNumItemsFn: function() {
return _items.length;
}
};
var _getItemAt,
_getNumItems,
_initialIsLoop,
_getZeroBounds = function() {
return {
center:{x:0,y:0},
max:{x:0,y:0},
min:{x:0,y:0}
};
},
_calculateSingleItemPanBounds = function(item, realPanElementW, realPanElementH ) {
var bounds = item.bounds;
// position of element when it's centered
bounds.center.x = Math.round((_tempPanAreaSize.x - realPanElementW) / 2);
bounds.center.y = Math.round((_tempPanAreaSize.y - realPanElementH) / 2) + item.vGap.top;
// maximum pan position
bounds.max.x = (realPanElementW > _tempPanAreaSize.x) ?
Math.round(_tempPanAreaSize.x - realPanElementW) :
bounds.center.x;
bounds.max.y = (realPanElementH > _tempPanAreaSize.y) ?
Math.round(_tempPanAreaSize.y - realPanElementH) + item.vGap.top :
bounds.center.y;
// minimum pan position
bounds.min.x = (realPanElementW > _tempPanAreaSize.x) ? 0 : bounds.center.x;
bounds.min.y = (realPanElementH > _tempPanAreaSize.y) ? item.vGap.top : bounds.center.y;
},
_calculateItemSize = function(item, viewportSize, zoomLevel) {
if (item.src && !item.loadError) {
var isInitial = !zoomLevel;
if(isInitial) {
if(!item.vGap) {
item.vGap = {top:0,bottom:0};
}
// allows overriding vertical margin for individual items
_shout('parseVerticalMargin', item);
}
_tempPanAreaSize.x = viewportSize.x;
_tempPanAreaSize.y = viewportSize.y - item.vGap.top - item.vGap.bottom;
if (isInitial) {
var hRatio = _tempPanAreaSize.x / item.w;
var vRatio = _tempPanAreaSize.y / item.h;
item.fitRatio = hRatio < vRatio ? hRatio : vRatio;
//item.fillRatio = hRatio > vRatio ? hRatio : vRatio;
var scaleMode = _options.scaleMode;
if (scaleMode === 'orig') {
zoomLevel = 1;
} else if (scaleMode === 'fit') {
zoomLevel = item.fitRatio;
}
if (zoomLevel > 1) {
zoomLevel = 1;
}
item.initialZoomLevel = zoomLevel;
if(!item.bounds) {
// reuse bounds object
item.bounds = _getZeroBounds();
}
}
if(!zoomLevel) {
return;
}
_calculateSingleItemPanBounds(item, item.w * zoomLevel, item.h * zoomLevel);
if (isInitial && zoomLevel === item.initialZoomLevel) {
item.initialPosition = item.bounds.center;
}
return item.bounds;
} else {
item.w = item.h = 0;
item.initialZoomLevel = item.fitRatio = 1;
item.bounds = _getZeroBounds();
item.initialPosition = item.bounds.center;
// if it's not image, we return zero bounds (content is not zoomable)
return item.bounds;
}
},
_appendImage = function(index, item, baseDiv, img, preventAnimation, keepPlaceholder) {
if(item.loadError) {
return;
}
if(img) {
item.imageAppended = true;
_setImageSize(item, img, (item === self.currItem && _renderMaxResolution) );
baseDiv.appendChild(img);
if(keepPlaceholder) {
setTimeout(function() {
if(item && item.loaded && item.placeholder) {
item.placeholder.style.display = 'none';
item.placeholder = null;
}
}, 500);
}
}
},
_preloadImage = function(item) {
item.loading = true;
item.loaded = false;
var img = item.img = framework.createEl('pswp__img', 'img');
var onComplete = function() {
item.loading = false;
item.loaded = true;
if(item.loadComplete) {
item.loadComplete(item);
} else {
item.img = null; // no need to store image object
}
img.onload = img.onerror = null;
img = null;
};
img.onload = onComplete;
img.onerror = function() {
item.loadError = true;
onComplete();
};
img.src = item.src;// + '?a=' + Math.random();
img.alt = item.alt || '';
return img;
},
_checkForError = function(item, cleanUp) {
if(item.src && item.loadError && item.container) {
if(cleanUp) {
item.container.innerHTML = '';
}
item.container.innerHTML = _options.errorMsg.replace('%url%', item.src );
return true;
}
},
_setImageSize = function(item, img, maxRes) {
if(!item.src) {
return;
}
if(!img) {
img = item.container.lastChild;
}
var w = maxRes ? item.w : Math.round(item.w * item.fitRatio),
h = maxRes ? item.h : Math.round(item.h * item.fitRatio);
if(item.placeholder && !item.loaded) {
item.placeholder.style.width = w + 'px';
item.placeholder.style.height = h + 'px';
}
img.style.width = w + 'px';
img.style.height = h + 'px';
},
_appendImagesPool = function() {
if(_imagesToAppendPool.length) {
var poolItem;
for(var i = 0; i < _imagesToAppendPool.length; i++) {
poolItem = _imagesToAppendPool[i];
if( poolItem.holder.index === poolItem.index ) {
_appendImage(poolItem.index, poolItem.item, poolItem.baseDiv, poolItem.img, false, poolItem.clearPlaceholder);
}
}
_imagesToAppendPool = [];
}
};
_registerModule('Controller', {
publicMethods: {
lazyLoadItem: function(index) {
index = _getLoopedId(index);
var item = _getItemAt(index);
if(!item || ((item.loaded || item.loading) && !_itemsNeedUpdate)) {
return;
}
_shout('gettingData', index, item);
if (!item.src) {
return;
}
_preloadImage(item);
},
initController: function() {
framework.extend(_options, _controllerDefaultOptions, true);
self.items = _items = items;
_getItemAt = self.getItemAt;
_getNumItems = _options.getNumItemsFn; //self.getNumItems;
_initialIsLoop = _options.loop;
if(_getNumItems() < 3) {
_options.loop = false; // disable loop if less then 3 items
}
_listen('beforeChange', function(diff) {
var p = _options.preload,
isNext = diff === null ? true : (diff >= 0),
preloadBefore = Math.min(p[0], _getNumItems() ),
preloadAfter = Math.min(p[1], _getNumItems() ),
i;
for(i = 1; i <= (isNext ? preloadAfter : preloadBefore); i++) {
self.lazyLoadItem(_currentItemIndex+i);
}
for(i = 1; i <= (isNext ? preloadBefore : preloadAfter); i++) {
self.lazyLoadItem(_currentItemIndex-i);
}
});
_listen('initialLayout', function() {
self.currItem.initialLayout = _options.getThumbBoundsFn && _options.getThumbBoundsFn(_currentItemIndex);
});
_listen('mainScrollAnimComplete', _appendImagesPool);
_listen('initialZoomInEnd', _appendImagesPool);
_listen('destroy', function() {
var item;
for(var i = 0; i < _items.length; i++) {
item = _items[i];
// remove reference to DOM elements, for GC
if(item.container) {
item.container = null;
}
if(item.placeholder) {
item.placeholder = null;
}
if(item.img) {
item.img = null;
}
if(item.preloader) {
item.preloader = null;
}
if(item.loadError) {
item.loaded = item.loadError = false;
}
}
_imagesToAppendPool = null;
});
},
getItemAt: function(index) {
if (index >= 0) {
return _items[index] !== undefined ? _items[index] : false;
}
return false;
},
allowProgressiveImg: function() {
// 1. Progressive image loading isn't working on webkit/blink
// when hw-acceleration (e.g. translateZ) is applied to IMG element.
// That's why in PhotoSwipe parent element gets zoom transform, not image itself.
//
// 2. Progressive image loading sometimes blinks in webkit/blink when applying animation to parent element.
// That's why it's disabled on touch devices (mainly because of swipe transition)
//
// 3. Progressive image loading sometimes doesn't work in IE (up to 11).
// Don't allow progressive loading on non-large touch devices
return _options.forceProgressiveLoading || !_likelyTouchDevice || _options.mouseUsed || screen.width > 1200;
// 1200 - to eliminate touch devices with large screen (like Chromebook Pixel)
},
setContent: function(holder, index) {
if(_options.loop) {
index = _getLoopedId(index);
}
var prevItem = self.getItemAt(holder.index);
if(prevItem) {
prevItem.container = null;
}
var item = self.getItemAt(index),
img;
if(!item) {
holder.el.innerHTML = '';
return;
}
// allow to override data
_shout('gettingData', index, item);
holder.index = index;
holder.item = item;
// base container DIV is created only once for each of 3 holders
var baseDiv = item.container = framework.createEl('pswp__zoom-wrap');
if(!item.src && item.html) {
if(item.html.tagName) {
baseDiv.appendChild(item.html);
} else {
baseDiv.innerHTML = item.html;
}
}
_checkForError(item);
_calculateItemSize(item, _viewportSize);
if(item.src && !item.loadError && !item.loaded) {
item.loadComplete = function(item) {
// gallery closed before image finished loading
if(!_isOpen) {
return;
}
// check if holder hasn't changed while image was loading
if(holder && holder.index === index ) {
if( _checkForError(item, true) ) {
item.loadComplete = item.img = null;
_calculateItemSize(item, _viewportSize);
_applyZoomPanToItem(item);
if(holder.index === _currentItemIndex) {
// recalculate dimensions
self.updateCurrZoomItem();
}
return;
}
if( !item.imageAppended ) {
if(_features.transform && (_mainScrollAnimating || _initialZoomRunning) ) {
_imagesToAppendPool.push({
item:item,
baseDiv:baseDiv,
img:item.img,
index:index,
holder:holder,
clearPlaceholder:true
});
} else {
_appendImage(index, item, baseDiv, item.img, _mainScrollAnimating || _initialZoomRunning, true);
}
} else {
// remove preloader & mini-img
if(!_initialZoomRunning && item.placeholder) {
item.placeholder.style.display = 'none';
item.placeholder = null;
}
}
}
item.loadComplete = null;
item.img = null; // no need to store image element after it's added
_shout('imageLoadComplete', index, item);
};
if(framework.features.transform) {
var placeholderClassName = 'pswp__img pswp__img--placeholder';
placeholderClassName += (item.msrc ? '' : ' pswp__img--placeholder--blank');
var placeholder = framework.createEl(placeholderClassName, item.msrc ? 'img' : '');
if(item.msrc) {
placeholder.src = item.msrc;
}
_setImageSize(item, placeholder);
baseDiv.appendChild(placeholder);
item.placeholder = placeholder;
}
if(!item.loading) {
_preloadImage(item);
}
if( self.allowProgressiveImg() ) {
// just append image
if(!_initialContentSet && _features.transform) {
_imagesToAppendPool.push({
item:item,
baseDiv:baseDiv,
img:item.img,
index:index,
holder:holder
});
} else {
_appendImage(index, item, baseDiv, item.img, true, true);
}
}
} else if(item.src && !item.loadError) {
// image object is created every time, due to bugs of image loading & delay when switching images
img = framework.createEl('pswp__img', 'img');
img.style.opacity = 1;
img.src = item.src;
_setImageSize(item, img);
_appendImage(index, item, baseDiv, img, true);
}
if(!_initialContentSet && index === _currentItemIndex) {
_currZoomElementStyle = baseDiv.style;
_showOrHide(item, (img ||item.img) );
} else {
_applyZoomPanToItem(item);
}
holder.el.innerHTML = '';
holder.el.appendChild(baseDiv);
},
cleanSlide: function( item ) {
if(item.img ) {
item.img.onload = item.img.onerror = null;
}
item.loaded = item.loading = item.img = item.imageAppended = false;
}
}
});
/*>>items-controller*/
/*>>tap*/
/**
* tap.js:
*
* Displatches tap and double-tap events.
*
*/
var tapTimer,
tapReleasePoint = {},
_dispatchTapEvent = function(origEvent, releasePoint, pointerType) {
var e = document.createEvent( 'CustomEvent' ),
eDetail = {
origEvent:origEvent,
target:origEvent.target,
releasePoint: releasePoint,
pointerType:pointerType || 'touch'
};
e.initCustomEvent( 'pswpTap', true, true, eDetail );
origEvent.target.dispatchEvent(e);
};
_registerModule('Tap', {
publicMethods: {
initTap: function() {
_listen('firstTouchStart', self.onTapStart);
_listen('touchRelease', self.onTapRelease);
_listen('destroy', function() {
tapReleasePoint = {};
tapTimer = null;
});
},
onTapStart: function(touchList) {
if(touchList.length > 1) {
clearTimeout(tapTimer);
tapTimer = null;
}
},
onTapRelease: function(e, releasePoint) {
if(!releasePoint) {
return;
}
if(!_moved && !_isMultitouch && !_numAnimations && self.container.contains(e.target)) {
var p0 = releasePoint;
if(tapTimer) {
clearTimeout(tapTimer);
tapTimer = null;
// Check if taped on the same place
if ( _isNearbyPoints(p0, tapReleasePoint) ) {
_shout('doubleTap', p0);
return;
}
}
if(releasePoint.type === 'mouse') {
_dispatchTapEvent(e, releasePoint, 'mouse');
return;
}
var clickedTagName = e.target.tagName.toUpperCase();
// avoid double tap delay on buttons and elements that have class pswp__single-tap
if(clickedTagName === 'BUTTON' || framework.hasClass(e.target, 'pswp__single-tap') ) {
_dispatchTapEvent(e, releasePoint);
return;
}
_equalizePoints(tapReleasePoint, p0);
tapTimer = setTimeout(function() {
_dispatchTapEvent(e, releasePoint);
tapTimer = null;
}, 300);
}
}
}
});
/*>>tap*/
/*>>desktop-zoom*/
/**
*
* desktop-zoom.js:
*
* - Binds mousewheel event for paning zoomed image.
* - Manages "dragging", "zoomed-in", "zoom-out" classes.
* (which are used for cursors and zoom icon)
* - Adds toggleDesktopZoom function.
*
*/
var _wheelDelta;
_registerModule('DesktopZoom', {
publicMethods: {
initDesktopZoom: function() {
if(_oldIE) {
// no zoom for old IE (<=8)
return;
}
if(_likelyTouchDevice) {
// if detected hardware touch support, we wait until mouse is used,
// and only then apply desktop-zoom features
_listen('mouseUsed', function() {
self.setupDesktopZoom();
});
} else {
self.setupDesktopZoom(true);
}
},
setupDesktopZoom: function(onInit) {
_wheelDelta = {};
var events = 'wheel mousewheel DOMMouseScroll';
_listen('bindEvents', function() {
framework.bind(template, events, self.handleMouseWheel);
});
_listen('unbindEvents', function() {
if(_wheelDelta) {
framework.unbind(template, events, self.handleMouseWheel);
}
});
self.mouseZoomedIn = false;
var hasDraggingClass,
updateZoomable = function() {
if(self.mouseZoomedIn) {
framework.removeClass(template, 'pswp--zoomed-in');
self.mouseZoomedIn = false;
}
if(_currZoomLevel < 1) {
framework.addClass(template, 'pswp--zoom-allowed');
} else {
framework.removeClass(template, 'pswp--zoom-allowed');
}
removeDraggingClass();
},
removeDraggingClass = function() {
if(hasDraggingClass) {
framework.removeClass(template, 'pswp--dragging');
hasDraggingClass = false;
}
};
_listen('resize' , updateZoomable);
_listen('afterChange' , updateZoomable);
_listen('pointerDown', function() {
if(self.mouseZoomedIn) {
hasDraggingClass = true;
framework.addClass(template, 'pswp--dragging');
}
});
_listen('pointerUp', removeDraggingClass);
if(!onInit) {
updateZoomable();
}
},
handleMouseWheel: function(e) {
if(_currZoomLevel <= self.currItem.fitRatio) {
if( _options.modal ) {
if (!_options.closeOnScroll || _numAnimations || _isDragging) {
e.preventDefault();
} else if(_transformKey && Math.abs(e.deltaY) > 2) {
// close PhotoSwipe
// if browser supports transforms & scroll changed enough
_closedByScroll = true;
self.close();
}
}
return true;
}
// allow just one event to fire
e.stopPropagation();
// https://developer.mozilla.org/en-US/docs/Web/Events/wheel
_wheelDelta.x = 0;
if('deltaX' in e) {
if(e.deltaMode === 1 /* DOM_DELTA_LINE */) {
// 18 - average line height
_wheelDelta.x = e.deltaX * 18;
_wheelDelta.y = e.deltaY * 18;
} else {
_wheelDelta.x = e.deltaX;
_wheelDelta.y = e.deltaY;
}
} else if('wheelDelta' in e) {
if(e.wheelDeltaX) {
_wheelDelta.x = -0.16 * e.wheelDeltaX;
}
if(e.wheelDeltaY) {
_wheelDelta.y = -0.16 * e.wheelDeltaY;
} else {
_wheelDelta.y = -0.16 * e.wheelDelta;
}
} else if('detail' in e) {
_wheelDelta.y = e.detail;
} else {
return;
}
_calculatePanBounds(_currZoomLevel, true);
var newPanX = _panOffset.x - _wheelDelta.x,
newPanY = _panOffset.y - _wheelDelta.y;
// only prevent scrolling in nonmodal mode when not at edges
if (_options.modal ||
(
newPanX <= _currPanBounds.min.x && newPanX >= _currPanBounds.max.x &&
newPanY <= _currPanBounds.min.y && newPanY >= _currPanBounds.max.y
) ) {
e.preventDefault();
}
// TODO: use rAF instead of mousewheel?
self.panTo(newPanX, newPanY);
},
toggleDesktopZoom: function(centerPoint) {
centerPoint = centerPoint || {x:_viewportSize.x/2 + _offset.x, y:_viewportSize.y/2 + _offset.y };
var doubleTapZoomLevel = _options.getDoubleTapZoom(true, self.currItem);
var zoomOut = _currZoomLevel === doubleTapZoomLevel;
self.mouseZoomedIn = !zoomOut;
self.zoomTo(zoomOut ? self.currItem.initialZoomLevel : doubleTapZoomLevel, centerPoint, 333);
framework[ (!zoomOut ? 'add' : 'remove') + 'Class'](template, 'pswp--zoomed-in');
}
}
});
/*>>desktop-zoom*/
/*>>history*/
/**
*
* history.js:
*
* - Back button to close gallery.
*
* - Unique URL for each slide: example.com/&pid=1&gid=3
* (where PID is picture index, and GID and gallery index)
*
* - Switch URL when slides change.
*
*/
var _historyDefaultOptions = {
history: true,
galleryUID: 1
};
var _historyUpdateTimeout,
_hashChangeTimeout,
_hashAnimCheckTimeout,
_hashChangedByScript,
_hashChangedByHistory,
_hashReseted,
_initialHash,
_historyChanged,
_closedFromURL,
_urlChangedOnce,
_windowLoc,
_supportsPushState,
_getHash = function() {
return _windowLoc.hash.substring(1);
},
_cleanHistoryTimeouts = function() {
if(_historyUpdateTimeout) {
clearTimeout(_historyUpdateTimeout);
}
if(_hashAnimCheckTimeout) {
clearTimeout(_hashAnimCheckTimeout);
}
},
// pid - Picture index
// gid - Gallery index
_parseItemIndexFromURL = function() {
var hash = _getHash(),
params = {};
if(hash.length < 5) { // pid=1
return params;
}
var i, vars = hash.split('&');
for (i = 0; i < vars.length; i++) {
if(!vars[i]) {
continue;
}
var pair = vars[i].split('=');
if(pair.length < 2) {
continue;
}
params[pair[0]] = pair[1];
}
if(_options.galleryPIDs) {
// detect custom pid in hash and search for it among the items collection
var searchfor = params.pid;
params.pid = 0; // if custom pid cannot be found, fallback to the first item
for(i = 0; i < _items.length; i++) {
if(_items[i].pid === searchfor) {
params.pid = i;
break;
}
}
} else {
params.pid = parseInt(params.pid,10)-1;
}
if( params.pid < 0 ) {
params.pid = 0;
}
return params;
},
_updateHash = function() {
if(_hashAnimCheckTimeout) {
clearTimeout(_hashAnimCheckTimeout);
}
if(_numAnimations || _isDragging) {
// changing browser URL forces layout/paint in some browsers, which causes noticable lag during animation
// that's why we update hash only when no animations running
_hashAnimCheckTimeout = setTimeout(_updateHash, 500);
return;
}
if(_hashChangedByScript) {
clearTimeout(_hashChangeTimeout);
} else {
_hashChangedByScript = true;
}
var pid = (_currentItemIndex + 1);
var item = _getItemAt( _currentItemIndex );
if(item.hasOwnProperty('pid')) {
// carry forward any custom pid assigned to the item
pid = item.pid;
}
var newHash = _initialHash + '&' + 'gid=' + _options.galleryUID + '&' + 'pid=' + pid;
if(!_historyChanged) {
if(_windowLoc.hash.indexOf(newHash) === -1) {
_urlChangedOnce = true;
}
// first time - add new hisory record, then just replace
}
var newURL = _windowLoc.href.split('#')[0] + '#' + newHash;
if( _supportsPushState ) {
if('#' + newHash !== window.location.hash) {
history[_historyChanged ? 'replaceState' : 'pushState']('', document.title, newURL);
}
} else {
if(_historyChanged) {
_windowLoc.replace( newURL );
} else {
_windowLoc.hash = newHash;
}
}
_historyChanged = true;
_hashChangeTimeout = setTimeout(function() {
_hashChangedByScript = false;
}, 60);
};
_registerModule('History', {
publicMethods: {
initHistory: function() {
framework.extend(_options, _historyDefaultOptions, true);
if( !_options.history ) {
return;
}
_windowLoc = window.location;
_urlChangedOnce = false;
_closedFromURL = false;
_historyChanged = false;
_initialHash = _getHash();
_supportsPushState = ('pushState' in history);
if(_initialHash.indexOf('gid=') > -1) {
_initialHash = _initialHash.split('&gid=')[0];
_initialHash = _initialHash.split('?gid=')[0];
}
_listen('afterChange', self.updateURL);
_listen('unbindEvents', function() {
framework.unbind(window, 'hashchange', self.onHashChange);
});
var returnToOriginal = function() {
_hashReseted = true;
if(!_closedFromURL) {
if(_urlChangedOnce) {
history.back();
} else {
if(_initialHash) {
_windowLoc.hash = _initialHash;
} else {
if (_supportsPushState) {
// remove hash from url without refreshing it or scrolling to top
history.pushState('', document.title, _windowLoc.pathname + _windowLoc.search );
} else {
_windowLoc.hash = '';
}
}
}
}
_cleanHistoryTimeouts();
};
_listen('unbindEvents', function() {
if(_closedByScroll) {
// if PhotoSwipe is closed by scroll, we go "back" before the closing animation starts
// this is done to keep the scroll position
returnToOriginal();
}
});
_listen('destroy', function() {
if(!_hashReseted) {
returnToOriginal();
}
});
_listen('firstUpdate', function() {
_currentItemIndex = _parseItemIndexFromURL().pid;
});
var index = _initialHash.indexOf('pid=');
if(index > -1) {
_initialHash = _initialHash.substring(0, index);
if(_initialHash.slice(-1) === '&') {
_initialHash = _initialHash.slice(0, -1);
}
}
setTimeout(function() {
if(_isOpen) { // hasn't destroyed yet
framework.bind(window, 'hashchange', self.onHashChange);
}
}, 40);
},
onHashChange: function() {
if(_getHash() === _initialHash) {
_closedFromURL = true;
self.close();
return;
}
if(!_hashChangedByScript) {
_hashChangedByHistory = true;
self.goTo( _parseItemIndexFromURL().pid );
_hashChangedByHistory = false;
}
},
updateURL: function() {
// Delay the update of URL, to avoid lag during transition,
// and to not to trigger actions like "refresh page sound" or "blinking favicon" to often
_cleanHistoryTimeouts();
if(_hashChangedByHistory) {
return;
}
if(!_historyChanged) {
_updateHash(); // first time
} else {
_historyUpdateTimeout = setTimeout(_updateHash, 800);
}
}
}
});
/*>>history*/
framework.extend(self, publicMethods); };
return PhotoSwipe;
});
// source --> https://braustelle.com/wp-content/plugins/woocommerce/assets/js/photoswipe/photoswipe-ui-default.js?ver=4.1.1-wc.10.5.2
/*! 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 += '' +
shareButtonData.label + '';
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);
}
// toggle 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;
});