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/*! PhotoSwipe - v4.1.3 - 2019-01-08 |
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* http://photoswipe.com |
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* Copyright (c) 2019 Dmitry Semenov; */ |
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(function (root, factory) { |
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if (typeof define === 'function' && define.amd) { |
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define(factory); |
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} else if (typeof exports === 'object') { |
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module.exports = factory(); |
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} else { |
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root.PhotoSwipe = factory(); |
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} |
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})(this, function () { |
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|
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'use strict'; |
| 15 |
var PhotoSwipe = function(template, UiClass, items, options){ |
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|
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/*>>framework-bridge*/ |
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/** |
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* |
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* Set of generic functions used by gallery. |
| 21 |
* |
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* You're free to modify anything here as long as functionality is kept. |
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* |
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*/ |
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var framework = { |
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features: null, |
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bind: function(target, type, listener, unbind) { |
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var methodName = (unbind ? 'remove' : 'add') + 'EventListener'; |
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type = type.split(' '); |
| 30 |
for(var i = 0; i < type.length; i++) { |
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if(type[i]) { |
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target[methodName]( type[i], listener, false); |
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} |
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} |
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}, |
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isArray: function(obj) { |
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return (obj instanceof Array); |
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}, |
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createEl: function(classes, tag) { |
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var el = document.createElement(tag || 'div'); |
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if(classes) { |
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el.className = classes; |
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} |
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return el; |
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}, |
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getScrollY: function() { |
| 47 |
var yOffset = window.pageYOffset; |
| 48 |
return yOffset !== undefined ? yOffset : document.documentElement.scrollTop; |
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}, |
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unbind: function(target, type, listener) { |
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framework.bind(target,type,listener,true); |
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}, |
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removeClass: function(el, className) { |
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var reg = new RegExp('(\\s|^)' + className + '(\\s|$)'); |
| 55 |
el.className = el.className.replace(reg, ' ').replace(/^\s\s*/, '').replace(/\s\s*$/, ''); |
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}, |
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addClass: function(el, className) { |
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if( !framework.hasClass(el,className) ) { |
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el.className += (el.className ? ' ' : '') + className; |
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} |
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}, |
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hasClass: function(el, className) { |
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return el.className && new RegExp('(^|\\s)' + className + '(\\s|$)').test(el.className); |
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}, |
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getChildByClass: function(parentEl, childClassName) { |
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var node = parentEl.firstChild; |
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while(node) { |
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if( framework.hasClass(node, childClassName) ) { |
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return node; |
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} |
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node = node.nextSibling; |
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} |
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}, |
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arraySearch: function(array, value, key) { |
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var i = array.length; |
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while(i--) { |
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if(array[i][key] === value) { |
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return i; |
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} |
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} |
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return -1; |
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}, |
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extend: function(o1, o2, preventOverwrite) { |
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for (var prop in o2) { |
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if (o2.hasOwnProperty(prop)) { |
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if(preventOverwrite && o1.hasOwnProperty(prop)) { |
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continue; |
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} |
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o1[prop] = o2[prop]; |
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} |
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} |
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}, |
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easing: { |
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sine: { |
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out: function(k) { |
| 96 |
return Math.sin(k * (Math.PI / 2)); |
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}, |
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inOut: function(k) { |
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return - (Math.cos(Math.PI * k) - 1) / 2; |
| 100 |
} |
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}, |
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cubic: { |
| 103 |
out: function(k) { |
| 104 |
return --k * k * k + 1; |
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} |
| 106 |
} |
| 107 |
/* |
| 108 |
elastic: { |
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out: function ( k ) { |
| 110 |
|
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var s, a = 0.1, p = 0.4; |
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if ( k === 0 ) return 0; |
| 113 |
if ( k === 1 ) return 1; |
| 114 |
if ( !a || a < 1 ) { a = 1; s = p / 4; } |
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else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI ); |
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return ( a * Math.pow( 2, - 10 * k) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) + 1 ); |
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|
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}, |
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}, |
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back: { |
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out: function ( k ) { |
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var s = 1.70158; |
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return --k * k * ( ( s + 1 ) * k + s ) + 1; |
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} |
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} |
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*/ |
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}, |
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|
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/** |
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* |
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* @return {object} |
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* |
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* { |
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* raf : request animation frame function |
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* caf : cancel animation frame function |
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* transfrom : transform property key (with vendor), or null if not supported |
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* oldIE : IE8 or below |
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* } |
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* |
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*/ |
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detectFeatures: function() { |
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if(framework.features) { |
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return framework.features; |
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} |
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var helperEl = framework.createEl(), |
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helperStyle = helperEl.style, |
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vendor = '', |
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features = {}; |
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|
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// IE8 and below |
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features.oldIE = document.all && !document.addEventListener; |
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|
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features.touch = 'ontouchstart' in window; |
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|
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if(window.requestAnimationFrame) { |
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features.raf = window.requestAnimationFrame; |
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features.caf = window.cancelAnimationFrame; |
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} |
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|
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features.pointerEvent = !!(window.PointerEvent) || navigator.msPointerEnabled; |
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|
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// fix false-positive detection of old Android in new IE |
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// (IE11 ua string contains "Android 4.0") |
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|
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if(!features.pointerEvent) { |
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|
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var ua = navigator.userAgent; |
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|
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// Detect if device is iPhone or iPod and if it's older than iOS 8 |
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// http://stackoverflow.com/a/14223920 |
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// |
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// This detection is made because of buggy top/bottom toolbars |
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// that don't trigger window.resize event. |
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// For more info refer to _isFixedPosition variable in core.js |
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|
| 176 |
if (/iP(hone|od)/.test(navigator.platform)) { |
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var v = (navigator.appVersion).match(/OS (\d+)_(\d+)_?(\d+)?/); |
| 178 |
if(v && v.length > 0) { |
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v = parseInt(v[1], 10); |
| 180 |
if(v >= 1 && v < 8 ) { |
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features.isOldIOSPhone = true; |
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} |
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} |
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} |
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|
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// Detect old Android (before KitKat) |
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// due to bugs related to position:fixed |
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// http://stackoverflow.com/questions/7184573/pick-up-the-android-version-in-the-browser-by-javascript |
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|
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var match = ua.match(/Android\s([0-9\.]*)/); |
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var androidversion = match ? match[1] : 0; |
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androidversion = parseFloat(androidversion); |
| 193 |
if(androidversion >= 1 ) { |
| 194 |
if(androidversion < 4.4) { |
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features.isOldAndroid = true; // for fixed position bug & performance |
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} |
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features.androidVersion = androidversion; // for touchend bug |
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} |
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features.isMobileOpera = /opera mini|opera mobi/i.test(ua); |
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|
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// p.s. yes, yes, UA sniffing is bad, propose your solution for above bugs. |
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} |
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|
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var styleChecks = ['transform', 'perspective', 'animationName'], |
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vendors = ['', 'webkit','Moz','ms','O'], |
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styleCheckItem, |
| 207 |
styleName; |
| 208 |
|
| 209 |
for(var i = 0; i < 4; i++) { |
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vendor = vendors[i]; |
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|
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for(var a = 0; a < 3; a++) { |
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styleCheckItem = styleChecks[a]; |
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|
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// uppercase first letter of property name, if vendor is present |
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styleName = vendor + (vendor ? |
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styleCheckItem.charAt(0).toUpperCase() + styleCheckItem.slice(1) : |
| 218 |
styleCheckItem); |
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|
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if(!features[styleCheckItem] && styleName in helperStyle ) { |
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features[styleCheckItem] = styleName; |
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} |
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} |
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|
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if(vendor && !features.raf) { |
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vendor = vendor.toLowerCase(); |
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features.raf = window[vendor+'RequestAnimationFrame']; |
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if(features.raf) { |
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features.caf = window[vendor+'CancelAnimationFrame'] || |
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window[vendor+'CancelRequestAnimationFrame']; |
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} |
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} |
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} |
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|
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if(!features.raf) { |
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var lastTime = 0; |
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features.raf = function(fn) { |
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var currTime = new Date().getTime(); |
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var timeToCall = Math.max(0, 16 - (currTime - lastTime)); |
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var id = window.setTimeout(function() { fn(currTime + timeToCall); }, timeToCall); |
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lastTime = currTime + timeToCall; |
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return id; |
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}; |
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features.caf = function(id) { clearTimeout(id); }; |
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} |
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|
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// Detect SVG support |
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features.svg = !!document.createElementNS && |
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!!document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGRect; |
| 250 |
|
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framework.features = features; |
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|
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return features; |
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} |
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}; |
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|
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framework.detectFeatures(); |
| 258 |
|
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// Override addEventListener for old versions of IE |
| 260 |
if(framework.features.oldIE) { |
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|
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framework.bind = function(target, type, listener, unbind) { |
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|
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type = type.split(' '); |
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|
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var methodName = (unbind ? 'detach' : 'attach') + 'Event', |
| 267 |
evName, |
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_handleEv = function() { |
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listener.handleEvent.call(listener); |
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}; |
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|
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for(var i = 0; i < type.length; i++) { |
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evName = type[i]; |
| 274 |
if(evName) { |
| 275 |
|
| 276 |
if(typeof listener === 'object' && listener.handleEvent) { |
| 277 |
if(!unbind) { |
| 278 |
listener['oldIE' + evName] = _handleEv; |
| 279 |
} else { |
| 280 |
if(!listener['oldIE' + evName]) { |
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return false; |
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} |
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} |
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|
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target[methodName]( 'on' + evName, listener['oldIE' + evName]); |
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} else { |
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target[methodName]( 'on' + evName, listener); |
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} |
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|
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} |
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} |
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}; |
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|
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} |
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|
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/*>>framework-bridge*/ |
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|
| 298 |
/*>>core*/ |
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//function(template, UiClass, items, options) |
| 300 |
|
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var self = this; |
| 302 |
|
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/** |
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* Static vars, don't change unless you know what you're doing. |
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*/ |
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var DOUBLE_TAP_RADIUS = 25, |
| 307 |
NUM_HOLDERS = 3; |
| 308 |
|
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/** |
| 310 |
* Options |
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*/ |
| 312 |
var _options = { |
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allowPanToNext:true, |
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spacing: 0.12, |
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bgOpacity: 1, |
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mouseUsed: false, |
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loop: true, |
| 318 |
pinchToClose: true, |
| 319 |
closeOnScroll: true, |
| 320 |
closeOnVerticalDrag: true, |
| 321 |
verticalDragRange: 0.75, |
| 322 |
hideAnimationDuration: 333, |
| 323 |
showAnimationDuration: 333, |
| 324 |
showHideOpacity: false, |
| 325 |
focus: true, |
| 326 |
escKey: true, |
| 327 |
arrowKeys: true, |
| 328 |
mainScrollEndFriction: 0.35, |
| 329 |
panEndFriction: 0.35, |
| 330 |
isClickableElement: function(el) { |
| 331 |
return el.tagName === 'A'; |
| 332 |
}, |
| 333 |
getDoubleTapZoom: function(isMouseClick, item) { |
| 334 |
if(isMouseClick) { |
| 335 |
return 1; |
| 336 |
} else { |
| 337 |
return item.initialZoomLevel < 0.7 ? 1 : 1.33; |
| 338 |
} |
| 339 |
}, |
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maxSpreadZoom: 1.33, |
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modal: true, |
| 342 |
|
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// not fully implemented yet |
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scaleMode: 'fit' // TODO |
| 345 |
}; |
| 346 |
framework.extend(_options, options); |
| 347 |
|
| 348 |
|
| 349 |
/** |
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* Private helper variables & functions |
| 351 |
*/ |
| 352 |
|
| 353 |
var _getEmptyPoint = function() { |
| 354 |
return {x:0,y:0}; |
| 355 |
}; |
| 356 |
|
| 357 |
var _isOpen, |
| 358 |
_isDestroying, |
| 359 |
_closedByScroll, |
| 360 |
_currentItemIndex, |
| 361 |
_containerStyle, |
| 362 |
_containerShiftIndex, |
| 363 |
_currPanDist = _getEmptyPoint(), |
| 364 |
_startPanOffset = _getEmptyPoint(), |
| 365 |
_panOffset = _getEmptyPoint(), |
| 366 |
_upMoveEvents, // drag move, drag end & drag cancel events array |
| 367 |
_downEvents, // drag start events array |
| 368 |
_globalEventHandlers, |
| 369 |
_viewportSize = {}, |
| 370 |
_currZoomLevel, |
| 371 |
_startZoomLevel, |
| 372 |
_translatePrefix, |
| 373 |
_translateSufix, |
| 374 |
_updateSizeInterval, |
| 375 |
_itemsNeedUpdate, |
| 376 |
_currPositionIndex = 0, |
| 377 |
_offset = {}, |
| 378 |
_slideSize = _getEmptyPoint(), // size of slide area, including spacing |
| 379 |
_itemHolders, |
| 380 |
_prevItemIndex, |
| 381 |
_indexDiff = 0, // difference of indexes since last content update |
| 382 |
_dragStartEvent, |
| 383 |
_dragMoveEvent, |
| 384 |
_dragEndEvent, |
| 385 |
_dragCancelEvent, |
| 386 |
_transformKey, |
| 387 |
_pointerEventEnabled, |
| 388 |
_isFixedPosition = true, |
| 389 |
_likelyTouchDevice, |
| 390 |
_modules = [], |
| 391 |
_requestAF, |
| 392 |
_cancelAF, |
| 393 |
_initalClassName, |
| 394 |
_initalWindowScrollY, |
| 395 |
_oldIE, |
| 396 |
_currentWindowScrollY, |
| 397 |
_features, |
| 398 |
_windowVisibleSize = {}, |
| 399 |
_renderMaxResolution = false, |
| 400 |
_orientationChangeTimeout, |
| 401 |
|
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|
| 403 |
// Registers PhotoSWipe module (History, Controller ...) |
| 404 |
_registerModule = function(name, module) { |
| 405 |
framework.extend(self, module.publicMethods); |
| 406 |
_modules.push(name); |
| 407 |
}, |
| 408 |
|
| 409 |
_getLoopedId = function(index) { |
| 410 |
var numSlides = _getNumItems(); |
| 411 |
if(index > numSlides - 1) { |
| 412 |
return index - numSlides; |
| 413 |
} else if(index < 0) { |
| 414 |
return numSlides + index; |
| 415 |
} |
| 416 |
return index; |
| 417 |
}, |
| 418 |
|
| 419 |
// Micro bind/trigger |
| 420 |
_listeners = {}, |
| 421 |
_listen = function(name, fn) { |
| 422 |
if(!_listeners[name]) { |
| 423 |
_listeners[name] = []; |
| 424 |
} |
| 425 |
return _listeners[name].push(fn); |
| 426 |
}, |
| 427 |
_shout = function(name) { |
| 428 |
var listeners = _listeners[name]; |
| 429 |
|
| 430 |
if(listeners) { |
| 431 |
var args = Array.prototype.slice.call(arguments); |
| 432 |
args.shift(); |
| 433 |
|
| 434 |
for(var i = 0; i < listeners.length; i++) { |
| 435 |
listeners[i].apply(self, args); |
| 436 |
} |
| 437 |
} |
| 438 |
}, |
| 439 |
|
| 440 |
_getCurrentTime = function() { |
| 441 |
return new Date().getTime(); |
| 442 |
}, |
| 443 |
_applyBgOpacity = function(opacity) { |
| 444 |
_bgOpacity = opacity; |
| 445 |
self.bg.style.opacity = opacity * _options.bgOpacity; |
| 446 |
}, |
| 447 |
|
| 448 |
_applyZoomTransform = function(styleObj,x,y,zoom,item) { |
| 449 |
if(!_renderMaxResolution || (item && item !== self.currItem) ) { |
| 450 |
zoom = zoom / (item ? item.fitRatio : self.currItem.fitRatio); |
| 451 |
} |
| 452 |
|
| 453 |
styleObj[_transformKey] = _translatePrefix + x + 'px, ' + y + 'px' + _translateSufix + ' scale(' + zoom + ')'; |
| 454 |
}, |
| 455 |
_applyCurrentZoomPan = function( allowRenderResolution ) { |
| 456 |
if(_currZoomElementStyle) { |
| 457 |
|
| 458 |
if(allowRenderResolution) { |
| 459 |
if(_currZoomLevel > self.currItem.fitRatio) { |
| 460 |
if(!_renderMaxResolution) { |
| 461 |
_setImageSize(self.currItem, false, true); |
| 462 |
_renderMaxResolution = true; |
| 463 |
} |
| 464 |
} else { |
| 465 |
if(_renderMaxResolution) { |
| 466 |
_setImageSize(self.currItem); |
| 467 |
_renderMaxResolution = false; |
| 468 |
} |
| 469 |
} |
| 470 |
} |
| 471 |
|
| 472 |
|
| 473 |
_applyZoomTransform(_currZoomElementStyle, _panOffset.x, _panOffset.y, _currZoomLevel); |
| 474 |
} |
| 475 |
}, |
| 476 |
_applyZoomPanToItem = function(item) { |
| 477 |
if(item.container) { |
| 478 |
|
| 479 |
_applyZoomTransform(item.container.style, |
| 480 |
item.initialPosition.x, |
| 481 |
item.initialPosition.y, |
| 482 |
item.initialZoomLevel, |
| 483 |
item); |
| 484 |
} |
| 485 |
}, |
| 486 |
_setTranslateX = function(x, elStyle) { |
| 487 |
elStyle[_transformKey] = _translatePrefix + x + 'px, 0px' + _translateSufix; |
| 488 |
}, |
| 489 |
_moveMainScroll = function(x, dragging) { |
| 490 |
|
| 491 |
if(!_options.loop && dragging) { |
| 492 |
var newSlideIndexOffset = _currentItemIndex + (_slideSize.x * _currPositionIndex - x) / _slideSize.x, |
| 493 |
delta = Math.round(x - _mainScrollPos.x); |
| 494 |
|
| 495 |
if( (newSlideIndexOffset < 0 && delta > 0) || |
| 496 |
(newSlideIndexOffset >= _getNumItems() - 1 && delta < 0) ) { |
| 497 |
x = _mainScrollPos.x + delta * _options.mainScrollEndFriction; |
| 498 |
} |
| 499 |
} |
| 500 |
|
| 501 |
_mainScrollPos.x = x; |
| 502 |
_setTranslateX(x, _containerStyle); |
| 503 |
}, |
| 504 |
_calculatePanOffset = function(axis, zoomLevel) { |
| 505 |
var m = _midZoomPoint[axis] - _offset[axis]; |
| 506 |
return _startPanOffset[axis] + _currPanDist[axis] + m - m * ( zoomLevel / _startZoomLevel ); |
| 507 |
}, |
| 508 |
|
| 509 |
_equalizePoints = function(p1, p2) { |
| 510 |
p1.x = p2.x; |
| 511 |
p1.y = p2.y; |
| 512 |
if(p2.id) { |
| 513 |
p1.id = p2.id; |
| 514 |
} |
| 515 |
}, |
| 516 |
_roundPoint = function(p) { |
| 517 |
p.x = Math.round(p.x); |
| 518 |
p.y = Math.round(p.y); |
| 519 |
}, |
| 520 |
|
| 521 |
_mouseMoveTimeout = null, |
| 522 |
_onFirstMouseMove = function() { |
| 523 |
// Wait until mouse move event is fired at least twice during 100ms |
| 524 |
// We do this, because some mobile browsers trigger it on touchstart |
| 525 |
if(_mouseMoveTimeout ) { |
| 526 |
framework.unbind(document, 'mousemove', _onFirstMouseMove); |
| 527 |
framework.addClass(template, 'pswp--has_mouse'); |
| 528 |
_options.mouseUsed = true; |
| 529 |
_shout('mouseUsed'); |
| 530 |
} |
| 531 |
_mouseMoveTimeout = setTimeout(function() { |
| 532 |
_mouseMoveTimeout = null; |
| 533 |
}, 100); |
| 534 |
}, |
| 535 |
|
| 536 |
_bindEvents = function() { |
| 537 |
framework.bind(document, 'keydown', self); |
| 538 |
|
| 539 |
if(_features.transform) { |
| 540 |
// don't bind click event in browsers that don't support transform (mostly IE8) |
| 541 |
framework.bind(self.scrollWrap, 'click', self); |
| 542 |
} |
| 543 |
|
| 544 |
|
| 545 |
if(!_options.mouseUsed) { |
| 546 |
framework.bind(document, 'mousemove', _onFirstMouseMove); |
| 547 |
} |
| 548 |
|
| 549 |
framework.bind(window, 'resize scroll orientationchange', self); |
| 550 |
|
| 551 |
_shout('bindEvents'); |
| 552 |
}, |
| 553 |
|
| 554 |
_unbindEvents = function() { |
| 555 |
framework.unbind(window, 'resize scroll orientationchange', self); |
| 556 |
framework.unbind(window, 'scroll', _globalEventHandlers.scroll); |
| 557 |
framework.unbind(document, 'keydown', self); |
| 558 |
framework.unbind(document, 'mousemove', _onFirstMouseMove); |
| 559 |
|
| 560 |
if(_features.transform) { |
| 561 |
framework.unbind(self.scrollWrap, 'click', self); |
| 562 |
} |
| 563 |
|
| 564 |
if(_isDragging) { |
| 565 |
framework.unbind(window, _upMoveEvents, self); |
| 566 |
} |
| 567 |
|
| 568 |
clearTimeout(_orientationChangeTimeout); |
| 569 |
|
| 570 |
_shout('unbindEvents'); |
| 571 |
}, |
| 572 |
|
| 573 |
_calculatePanBounds = function(zoomLevel, update) { |
| 574 |
var bounds = _calculateItemSize( self.currItem, _viewportSize, zoomLevel ); |
| 575 |
if(update) { |
| 576 |
_currPanBounds = bounds; |
| 577 |
} |
| 578 |
return bounds; |
| 579 |
}, |
| 580 |
|
| 581 |
_getMinZoomLevel = function(item) { |
| 582 |
if(!item) { |
| 583 |
item = self.currItem; |
| 584 |
} |
| 585 |
return item.initialZoomLevel; |
| 586 |
}, |
| 587 |
_getMaxZoomLevel = function(item) { |
| 588 |
if(!item) { |
| 589 |
item = self.currItem; |
| 590 |
} |
| 591 |
return item.w > 0 ? _options.maxSpreadZoom : 1; |
| 592 |
}, |
| 593 |
|
| 594 |
// Return true if offset is out of the bounds |
| 595 |
_modifyDestPanOffset = function(axis, destPanBounds, destPanOffset, destZoomLevel) { |
| 596 |
if(destZoomLevel === self.currItem.initialZoomLevel) { |
| 597 |
destPanOffset[axis] = self.currItem.initialPosition[axis]; |
| 598 |
return true; |
| 599 |
} else { |
| 600 |
destPanOffset[axis] = _calculatePanOffset(axis, destZoomLevel); |
| 601 |
|
| 602 |
if(destPanOffset[axis] > destPanBounds.min[axis]) { |
| 603 |
destPanOffset[axis] = destPanBounds.min[axis]; |
| 604 |
return true; |
| 605 |
} else if(destPanOffset[axis] < destPanBounds.max[axis] ) { |
| 606 |
destPanOffset[axis] = destPanBounds.max[axis]; |
| 607 |
return true; |
| 608 |
} |
| 609 |
} |
| 610 |
return false; |
| 611 |
}, |
| 612 |
|
| 613 |
_setupTransforms = function() { |
| 614 |
|
| 615 |
if(_transformKey) { |
| 616 |
// setup 3d transforms |
| 617 |
var allow3dTransform = _features.perspective && !_likelyTouchDevice; |
| 618 |
_translatePrefix = 'translate' + (allow3dTransform ? '3d(' : '('); |
| 619 |
_translateSufix = _features.perspective ? ', 0px)' : ')'; |
| 620 |
return; |
| 621 |
} |
| 622 |
|
| 623 |
// Override zoom/pan/move functions in case old browser is used (most likely IE) |
| 624 |
// (so they use left/top/width/height, instead of CSS transform) |
| 625 |
|
| 626 |
_transformKey = 'left'; |
| 627 |
framework.addClass(template, 'pswp--ie'); |
| 628 |
|
| 629 |
_setTranslateX = function(x, elStyle) { |
| 630 |
elStyle.left = x + 'px'; |
| 631 |
}; |
| 632 |
_applyZoomPanToItem = function(item) { |
| 633 |
|
| 634 |
var zoomRatio = item.fitRatio > 1 ? 1 : item.fitRatio, |
| 635 |
s = item.container.style, |
| 636 |
w = zoomRatio * item.w, |
| 637 |
h = zoomRatio * item.h; |
| 638 |
|
| 639 |
s.width = w + 'px'; |
| 640 |
s.height = h + 'px'; |
| 641 |
s.left = item.initialPosition.x + 'px'; |
| 642 |
s.top = item.initialPosition.y + 'px'; |
| 643 |
|
| 644 |
}; |
| 645 |
_applyCurrentZoomPan = function() { |
| 646 |
if(_currZoomElementStyle) { |
| 647 |
|
| 648 |
var s = _currZoomElementStyle, |
| 649 |
item = self.currItem, |
| 650 |
zoomRatio = item.fitRatio > 1 ? 1 : item.fitRatio, |
| 651 |
w = zoomRatio * item.w, |
| 652 |
h = zoomRatio * item.h; |
| 653 |
|
| 654 |
s.width = w + 'px'; |
| 655 |
s.height = h + 'px'; |
| 656 |
|
| 657 |
|
| 658 |
s.left = _panOffset.x + 'px'; |
| 659 |
s.top = _panOffset.y + 'px'; |
| 660 |
} |
| 661 |
|
| 662 |
}; |
| 663 |
}, |
| 664 |
|
| 665 |
_onKeyDown = function(e) { |
| 666 |
var keydownAction = ''; |
| 667 |
if(_options.escKey && e.keyCode === 27) { |
| 668 |
keydownAction = 'close'; |
| 669 |
} else if(_options.arrowKeys) { |
| 670 |
if(e.keyCode === 37) { |
| 671 |
keydownAction = 'prev'; |
| 672 |
} else if(e.keyCode === 39) { |
| 673 |
keydownAction = 'next'; |
| 674 |
} |
| 675 |
} |
| 676 |
|
| 677 |
if(keydownAction) { |
| 678 |
// don't do anything if special key pressed to prevent from overriding default browser actions |
| 679 |
// e.g. in Chrome on Mac cmd+arrow-left returns to previous page |
| 680 |
if( !e.ctrlKey && !e.altKey && !e.shiftKey && !e.metaKey ) { |
| 681 |
if(e.preventDefault) { |
| 682 |
e.preventDefault(); |
| 683 |
} else { |
| 684 |
e.returnValue = false; |
| 685 |
} |
| 686 |
self[keydownAction](); |
| 687 |
} |
| 688 |
} |
| 689 |
}, |
| 690 |
|
| 691 |
_onGlobalClick = function(e) { |
| 692 |
if(!e) { |
| 693 |
return; |
| 694 |
} |
| 695 |
|
| 696 |
// don't allow click event to pass through when triggering after drag or some other gesture |
| 697 |
if(_moved || _zoomStarted || _mainScrollAnimating || _verticalDragInitiated) { |
| 698 |
e.preventDefault(); |
| 699 |
e.stopPropagation(); |
| 700 |
} |
| 701 |
}, |
| 702 |
|
| 703 |
_updatePageScrollOffset = function() { |
| 704 |
self.setScrollOffset(0, framework.getScrollY()); |
| 705 |
}; |
| 706 |
|
| 707 |
|
| 708 |
|
| 709 |
|
| 710 |
|
| 711 |
|
| 712 |
|
| 713 |
// Micro animation engine |
| 714 |
var _animations = {}, |
| 715 |
_numAnimations = 0, |
| 716 |
_stopAnimation = function(name) { |
| 717 |
if(_animations[name]) { |
| 718 |
if(_animations[name].raf) { |
| 719 |
_cancelAF( _animations[name].raf ); |
| 720 |
} |
| 721 |
_numAnimations--; |
| 722 |
delete _animations[name]; |
| 723 |
} |
| 724 |
}, |
| 725 |
_registerStartAnimation = function(name) { |
| 726 |
if(_animations[name]) { |
| 727 |
_stopAnimation(name); |
| 728 |
} |
| 729 |
if(!_animations[name]) { |
| 730 |
_numAnimations++; |
| 731 |
_animations[name] = {}; |
| 732 |
} |
| 733 |
}, |
| 734 |
_stopAllAnimations = function() { |
| 735 |
for (var prop in _animations) { |
| 736 |
|
| 737 |
if( _animations.hasOwnProperty( prop ) ) { |
| 738 |
_stopAnimation(prop); |
| 739 |
} |
| 740 |
|
| 741 |
} |
| 742 |
}, |
| 743 |
_animateProp = function(name, b, endProp, d, easingFn, onUpdate, onComplete) { |
| 744 |
var startAnimTime = _getCurrentTime(), t; |
| 745 |
_registerStartAnimation(name); |
| 746 |
|
| 747 |
var animloop = function(){ |
| 748 |
if ( _animations[name] ) { |
| 749 |
|
| 750 |
t = _getCurrentTime() - startAnimTime; // time diff |
| 751 |
//b - beginning (start prop) |
| 752 |
//d - anim duration |
| 753 |
|
| 754 |
if ( t >= d ) { |
| 755 |
_stopAnimation(name); |
| 756 |
onUpdate(endProp); |
| 757 |
if(onComplete) { |
| 758 |
onComplete(); |
| 759 |
} |
| 760 |
return; |
| 761 |
} |
| 762 |
onUpdate( (endProp - b) * easingFn(t/d) + b ); |
| 763 |
|
| 764 |
_animations[name].raf = _requestAF(animloop); |
| 765 |
} |
| 766 |
}; |
| 767 |
animloop(); |
| 768 |
}; |
| 769 |
|
| 770 |
|
| 771 |
|
| 772 |
var publicMethods = { |
| 773 |
|
| 774 |
// make a few local variables and functions public |
| 775 |
shout: _shout, |
| 776 |
listen: _listen, |
| 777 |
viewportSize: _viewportSize, |
| 778 |
options: _options, |
| 779 |
|
| 780 |
isMainScrollAnimating: function() { |
| 781 |
return _mainScrollAnimating; |
| 782 |
}, |
| 783 |
getZoomLevel: function() { |
| 784 |
return _currZoomLevel; |
| 785 |
}, |
| 786 |
getCurrentIndex: function() { |
| 787 |
return _currentItemIndex; |
| 788 |
}, |
| 789 |
isDragging: function() { |
| 790 |
return _isDragging; |
| 791 |
}, |
| 792 |
isZooming: function() { |
| 793 |
return _isZooming; |
| 794 |
}, |
| 795 |
setScrollOffset: function(x,y) { |
| 796 |
_offset.x = x; |
| 797 |
_currentWindowScrollY = _offset.y = y; |
| 798 |
_shout('updateScrollOffset', _offset); |
| 799 |
}, |
| 800 |
applyZoomPan: function(zoomLevel,panX,panY,allowRenderResolution) { |
| 801 |
_panOffset.x = panX; |
| 802 |
_panOffset.y = panY; |
| 803 |
_currZoomLevel = zoomLevel; |
| 804 |
_applyCurrentZoomPan( allowRenderResolution ); |
| 805 |
}, |
| 806 |
|
| 807 |
init: function() { |
| 808 |
|
| 809 |
if(_isOpen || _isDestroying) { |
| 810 |
return; |
| 811 |
} |
| 812 |
|
| 813 |
var i; |
| 814 |
|
| 815 |
self.framework = framework; // basic functionality |
| 816 |
self.template = template; // root DOM element of PhotoSwipe |
| 817 |
self.bg = framework.getChildByClass(template, 'pswp__bg'); |
| 818 |
|
| 819 |
_initalClassName = template.className; |
| 820 |
_isOpen = true; |
| 821 |
|
| 822 |
_features = framework.detectFeatures(); |
| 823 |
_requestAF = _features.raf; |
| 824 |
_cancelAF = _features.caf; |
| 825 |
_transformKey = _features.transform; |
| 826 |
_oldIE = _features.oldIE; |
| 827 |
|
| 828 |
self.scrollWrap = framework.getChildByClass(template, 'pswp__scroll-wrap'); |
| 829 |
self.container = framework.getChildByClass(self.scrollWrap, 'pswp__container'); |
| 830 |
|
| 831 |
_containerStyle = self.container.style; // for fast access |
| 832 |
|
| 833 |
// Objects that hold slides (there are only 3 in DOM) |
| 834 |
self.itemHolders = _itemHolders = [ |
| 835 |
{el:self.container.children[0] , wrap:0, index: -1}, |
| 836 |
{el:self.container.children[1] , wrap:0, index: -1}, |
| 837 |
{el:self.container.children[2] , wrap:0, index: -1} |
| 838 |
]; |
| 839 |
|
| 840 |
// hide nearby item holders until initial zoom animation finishes (to avoid extra Paints) |
| 841 |
_itemHolders[0].el.style.display = _itemHolders[2].el.style.display = 'none'; |
| 842 |
|
| 843 |
_setupTransforms(); |
| 844 |
|
| 845 |
// Setup global events |
| 846 |
_globalEventHandlers = { |
| 847 |
resize: self.updateSize, |
| 848 |
|
| 849 |
// Fixes: iOS 10.3 resize event |
| 850 |
// does not update scrollWrap.clientWidth instantly after resize |
| 851 |
// https://github.com/dimsemenov/PhotoSwipe/issues/1315 |
| 852 |
orientationchange: function() { |
| 853 |
clearTimeout(_orientationChangeTimeout); |
| 854 |
_orientationChangeTimeout = setTimeout(function() { |
| 855 |
if(_viewportSize.x !== self.scrollWrap.clientWidth) { |
| 856 |
self.updateSize(); |
| 857 |
} |
| 858 |
}, 500); |
| 859 |
}, |
| 860 |
scroll: _updatePageScrollOffset, |
| 861 |
keydown: _onKeyDown, |
| 862 |
click: _onGlobalClick |
| 863 |
}; |
| 864 |
|
| 865 |
// disable show/hide effects on old browsers that don't support CSS animations or transforms, |
| 866 |
// old IOS, Android and Opera mobile. Blackberry seems to work fine, even older models. |
| 867 |
var oldPhone = _features.isOldIOSPhone || _features.isOldAndroid || _features.isMobileOpera; |
| 868 |
if(!_features.animationName || !_features.transform || oldPhone) { |
| 869 |
_options.showAnimationDuration = _options.hideAnimationDuration = 0; |
| 870 |
} |
| 871 |
|
| 872 |
// init modules |
| 873 |
for(i = 0; i < _modules.length; i++) { |
| 874 |
self['init' + _modules[i]](); |
| 875 |
} |
| 876 |
|
| 877 |
// init |
| 878 |
if(UiClass) { |
| 879 |
var ui = self.ui = new UiClass(self, framework); |
| 880 |
ui.init(); |
| 881 |
} |
| 882 |
|
| 883 |
_shout('firstUpdate'); |
| 884 |
_currentItemIndex = _currentItemIndex || _options.index || 0; |
| 885 |
// validate index |
| 886 |
if( isNaN(_currentItemIndex) || _currentItemIndex < 0 || _currentItemIndex >= _getNumItems() ) { |
| 887 |
_currentItemIndex = 0; |
| 888 |
} |
| 889 |
self.currItem = _getItemAt( _currentItemIndex ); |
| 890 |
|
| 891 |
|
| 892 |
if(_features.isOldIOSPhone || _features.isOldAndroid) { |
| 893 |
_isFixedPosition = false; |
| 894 |
} |
| 895 |
|
| 896 |
template.setAttribute('aria-hidden', 'false'); |
| 897 |
if(_options.modal) { |
| 898 |
if(!_isFixedPosition) { |
| 899 |
template.style.position = 'absolute'; |
| 900 |
template.style.top = framework.getScrollY() + 'px'; |
| 901 |
} else { |
| 902 |
template.style.position = 'fixed'; |
| 903 |
} |
| 904 |
} |
| 905 |
|
| 906 |
if(_currentWindowScrollY === undefined) { |
| 907 |
_shout('initialLayout'); |
| 908 |
_currentWindowScrollY = _initalWindowScrollY = framework.getScrollY(); |
| 909 |
} |
| 910 |
|
| 911 |
// add classes to root element of PhotoSwipe |
| 912 |
var rootClasses = 'pswp--open '; |
| 913 |
if(_options.mainClass) { |
| 914 |
rootClasses += _options.mainClass + ' '; |
| 915 |
} |
| 916 |
if(_options.showHideOpacity) { |
| 917 |
rootClasses += 'pswp--animate_opacity '; |
| 918 |
} |
| 919 |
rootClasses += _likelyTouchDevice ? 'pswp--touch' : 'pswp--notouch'; |
| 920 |
rootClasses += _features.animationName ? ' pswp--css_animation' : ''; |
| 921 |
rootClasses += _features.svg ? ' pswp--svg' : ''; |
| 922 |
framework.addClass(template, rootClasses); |
| 923 |
|
| 924 |
self.updateSize(); |
| 925 |
|
| 926 |
// initial update |
| 927 |
_containerShiftIndex = -1; |
| 928 |
_indexDiff = null; |
| 929 |
for(i = 0; i < NUM_HOLDERS; i++) { |
| 930 |
_setTranslateX( (i+_containerShiftIndex) * _slideSize.x, _itemHolders[i].el.style); |
| 931 |
} |
| 932 |
|
| 933 |
if(!_oldIE) { |
| 934 |
framework.bind(self.scrollWrap, _downEvents, self); // no dragging for old IE |
| 935 |
} |
| 936 |
|
| 937 |
_listen('initialZoomInEnd', function() { |
| 938 |
self.setContent(_itemHolders[0], _currentItemIndex-1); |
| 939 |
self.setContent(_itemHolders[2], _currentItemIndex+1); |
| 940 |
|
| 941 |
_itemHolders[0].el.style.display = _itemHolders[2].el.style.display = 'block'; |
| 942 |
|
| 943 |
if(_options.focus) { |
| 944 |
// focus causes layout, |
| 945 |
// which causes lag during the animation, |
| 946 |
// that's why we delay it untill the initial zoom transition ends |
| 947 |
template.focus(); |
| 948 |
} |
| 949 |
|
| 950 |
|
| 951 |
_bindEvents(); |
| 952 |
}); |
| 953 |
|
| 954 |
// set content for center slide (first time) |
| 955 |
self.setContent(_itemHolders[1], _currentItemIndex); |
| 956 |
|
| 957 |
self.updateCurrItem(); |
| 958 |
|
| 959 |
_shout('afterInit'); |
| 960 |
|
| 961 |
if(!_isFixedPosition) { |
| 962 |
|
| 963 |
// On all versions of iOS lower than 8.0, we check size of viewport every second. |
| 964 |
// |
| 965 |
// This is done to detect when Safari top & bottom bars appear, |
| 966 |
// as this action doesn't trigger any events (like resize). |
| 967 |
// |
| 968 |
// On iOS8 they fixed this. |
| 969 |
// |
| 970 |
// 10 Nov 2014: iOS 7 usage ~40%. iOS 8 usage 56%. |
| 971 |
|
| 972 |
_updateSizeInterval = setInterval(function() { |
| 973 |
if(!_numAnimations && !_isDragging && !_isZooming && (_currZoomLevel === self.currItem.initialZoomLevel) ) { |
| 974 |
self.updateSize(); |
| 975 |
} |
| 976 |
}, 1000); |
| 977 |
} |
| 978 |
|
| 979 |
framework.addClass(template, 'pswp--visible'); |
| 980 |
}, |
| 981 |
|
| 982 |
// Close the gallery, then destroy it |
| 983 |
close: function() { |
| 984 |
if(!_isOpen) { |
| 985 |
return; |
| 986 |
} |
| 987 |
|
| 988 |
_isOpen = false; |
| 989 |
_isDestroying = true; |
| 990 |
_shout('close'); |
| 991 |
_unbindEvents(); |
| 992 |
|
| 993 |
_showOrHide(self.currItem, null, true, self.destroy); |
| 994 |
}, |
| 995 |
|
| 996 |
// destroys the gallery (unbinds events, cleans up intervals and timeouts to avoid memory leaks) |
| 997 |
destroy: function() { |
| 998 |
_shout('destroy'); |
| 999 |
|
| 1000 |
if(_showOrHideTimeout) { |
| 1001 |
clearTimeout(_showOrHideTimeout); |
| 1002 |
} |
| 1003 |
|
| 1004 |
template.setAttribute('aria-hidden', 'true'); |
| 1005 |
template.className = _initalClassName; |
| 1006 |
|
| 1007 |
if(_updateSizeInterval) { |
| 1008 |
clearInterval(_updateSizeInterval); |
| 1009 |
} |
| 1010 |
|
| 1011 |
framework.unbind(self.scrollWrap, _downEvents, self); |
| 1012 |
|
| 1013 |
// we unbind scroll event at the end, as closing animation may depend on it |
| 1014 |
framework.unbind(window, 'scroll', self); |
| 1015 |
|
| 1016 |
_stopDragUpdateLoop(); |
| 1017 |
|
| 1018 |
_stopAllAnimations(); |
| 1019 |
|
| 1020 |
_listeners = null; |
| 1021 |
}, |
| 1022 |
|
| 1023 |
/** |
| 1024 |
* Pan image to position |
| 1025 |
* @param {Number} x |
| 1026 |
* @param {Number} y |
| 1027 |
* @param {Boolean} force Will ignore bounds if set to true. |
| 1028 |
*/ |
| 1029 |
panTo: function(x,y,force) { |
| 1030 |
if(!force) { |
| 1031 |
if(x > _currPanBounds.min.x) { |
| 1032 |
x = _currPanBounds.min.x; |
| 1033 |
} else if(x < _currPanBounds.max.x) { |
| 1034 |
x = _currPanBounds.max.x; |
| 1035 |
} |
| 1036 |
|
| 1037 |
if(y > _currPanBounds.min.y) { |
| 1038 |
y = _currPanBounds.min.y; |
| 1039 |
} else if(y < _currPanBounds.max.y) { |
| 1040 |
y = _currPanBounds.max.y; |
| 1041 |
} |
| 1042 |
} |
| 1043 |
|
| 1044 |
_panOffset.x = x; |
| 1045 |
_panOffset.y = y; |
| 1046 |
_applyCurrentZoomPan(); |
| 1047 |
}, |
| 1048 |
|
| 1049 |
handleEvent: function (e) { |
| 1050 |
e = e || window.event; |
| 1051 |
if(_globalEventHandlers[e.type]) { |
| 1052 |
_globalEventHandlers[e.type](e); |
| 1053 |
} |
| 1054 |
}, |
| 1055 |
|
| 1056 |
|
| 1057 |
goTo: function(index) { |
| 1058 |
|
| 1059 |
index = _getLoopedId(index); |
| 1060 |
|
| 1061 |
var diff = index - _currentItemIndex; |
| 1062 |
_indexDiff = diff; |
| 1063 |
|
| 1064 |
_currentItemIndex = index; |
| 1065 |
self.currItem = _getItemAt( _currentItemIndex ); |
| 1066 |
_currPositionIndex -= diff; |
| 1067 |
|
| 1068 |
_moveMainScroll(_slideSize.x * _currPositionIndex); |
| 1069 |
|
| 1070 |
|
| 1071 |
_stopAllAnimations(); |
| 1072 |
_mainScrollAnimating = false; |
| 1073 |
|
| 1074 |
self.updateCurrItem(); |
| 1075 |
}, |
| 1076 |
next: function() { |
| 1077 |
self.goTo( _currentItemIndex + 1); |
| 1078 |
}, |
| 1079 |
prev: function() { |
| 1080 |
self.goTo( _currentItemIndex - 1); |
| 1081 |
}, |
| 1082 |
|
| 1083 |
// update current zoom/pan objects |
| 1084 |
updateCurrZoomItem: function(emulateSetContent) { |
| 1085 |
if(emulateSetContent) { |
| 1086 |
_shout('beforeChange', 0); |
| 1087 |
} |
| 1088 |
|
| 1089 |
// itemHolder[1] is middle (current) item |
| 1090 |
if(_itemHolders[1].el.children.length) { |
| 1091 |
var zoomElement = _itemHolders[1].el.children[0]; |
| 1092 |
if( framework.hasClass(zoomElement, 'pswp__zoom-wrap') ) { |
| 1093 |
_currZoomElementStyle = zoomElement.style; |
| 1094 |
} else { |
| 1095 |
_currZoomElementStyle = null; |
| 1096 |
} |
| 1097 |
} else { |
| 1098 |
_currZoomElementStyle = null; |
| 1099 |
} |
| 1100 |
|
| 1101 |
_currPanBounds = self.currItem.bounds; |
| 1102 |
_startZoomLevel = _currZoomLevel = self.currItem.initialZoomLevel; |
| 1103 |
|
| 1104 |
_panOffset.x = _currPanBounds.center.x; |
| 1105 |
_panOffset.y = _currPanBounds.center.y; |
| 1106 |
|
| 1107 |
if(emulateSetContent) { |
| 1108 |
_shout('afterChange'); |
| 1109 |
} |
| 1110 |
}, |
| 1111 |
|
| 1112 |
|
| 1113 |
invalidateCurrItems: function() { |
| 1114 |
_itemsNeedUpdate = true; |
| 1115 |
for(var i = 0; i < NUM_HOLDERS; i++) { |
| 1116 |
if( _itemHolders[i].item ) { |
| 1117 |
_itemHolders[i].item.needsUpdate = true; |
| 1118 |
} |
| 1119 |
} |
| 1120 |
}, |
| 1121 |
|
| 1122 |
updateCurrItem: function(beforeAnimation) { |
| 1123 |
|
| 1124 |
if(_indexDiff === 0) { |
| 1125 |
return; |
| 1126 |
} |
| 1127 |
|
| 1128 |
var diffAbs = Math.abs(_indexDiff), |
| 1129 |
tempHolder; |
| 1130 |
|
| 1131 |
if(beforeAnimation && diffAbs < 2) { |
| 1132 |
return; |
| 1133 |
} |
| 1134 |
|
| 1135 |
|
| 1136 |
self.currItem = _getItemAt( _currentItemIndex ); |
| 1137 |
_renderMaxResolution = false; |
| 1138 |
|
| 1139 |
_shout('beforeChange', _indexDiff); |
| 1140 |
|
| 1141 |
if(diffAbs >= NUM_HOLDERS) { |
| 1142 |
_containerShiftIndex += _indexDiff + (_indexDiff > 0 ? -NUM_HOLDERS : NUM_HOLDERS); |
| 1143 |
diffAbs = NUM_HOLDERS; |
| 1144 |
} |
| 1145 |
for(var i = 0; i < diffAbs; i++) { |
| 1146 |
if(_indexDiff > 0) { |
| 1147 |
tempHolder = _itemHolders.shift(); |
| 1148 |
_itemHolders[NUM_HOLDERS-1] = tempHolder; // move first to last |
| 1149 |
|
| 1150 |
_containerShiftIndex++; |
| 1151 |
_setTranslateX( (_containerShiftIndex+2) * _slideSize.x, tempHolder.el.style); |
| 1152 |
self.setContent(tempHolder, _currentItemIndex - diffAbs + i + 1 + 1); |
| 1153 |
} else { |
| 1154 |
tempHolder = _itemHolders.pop(); |
| 1155 |
_itemHolders.unshift( tempHolder ); // move last to first |
| 1156 |
|
| 1157 |
_containerShiftIndex--; |
| 1158 |
_setTranslateX( _containerShiftIndex * _slideSize.x, tempHolder.el.style); |
| 1159 |
self.setContent(tempHolder, _currentItemIndex + diffAbs - i - 1 - 1); |
| 1160 |
} |
| 1161 |
|
| 1162 |
} |
| 1163 |
|
| 1164 |
// reset zoom/pan on previous item |
| 1165 |
if(_currZoomElementStyle && Math.abs(_indexDiff) === 1) { |
| 1166 |
|
| 1167 |
var prevItem = _getItemAt(_prevItemIndex); |
| 1168 |
if(prevItem.initialZoomLevel !== _currZoomLevel) { |
| 1169 |
_calculateItemSize(prevItem , _viewportSize ); |
| 1170 |
_setImageSize(prevItem); |
| 1171 |
_applyZoomPanToItem( prevItem ); |
| 1172 |
} |
| 1173 |
|
| 1174 |
} |
| 1175 |
|
| 1176 |
// reset diff after update |
| 1177 |
_indexDiff = 0; |
| 1178 |
|
| 1179 |
self.updateCurrZoomItem(); |
| 1180 |
|
| 1181 |
_prevItemIndex = _currentItemIndex; |
| 1182 |
|
| 1183 |
_shout('afterChange'); |
| 1184 |
|
| 1185 |
}, |
| 1186 |
|
| 1187 |
|
| 1188 |
|
| 1189 |
updateSize: function(force) { |
| 1190 |
|
| 1191 |
if(!_isFixedPosition && _options.modal) { |
| 1192 |
var windowScrollY = framework.getScrollY(); |
| 1193 |
if(_currentWindowScrollY !== windowScrollY) { |
| 1194 |
template.style.top = windowScrollY + 'px'; |
| 1195 |
_currentWindowScrollY = windowScrollY; |
| 1196 |
} |
| 1197 |
if(!force && _windowVisibleSize.x === window.innerWidth && _windowVisibleSize.y === window.innerHeight) { |
| 1198 |
return; |
| 1199 |
} |
| 1200 |
_windowVisibleSize.x = window.innerWidth; |
| 1201 |
_windowVisibleSize.y = window.innerHeight; |
| 1202 |
|
| 1203 |
//template.style.width = _windowVisibleSize.x + 'px'; |
| 1204 |
template.style.height = _windowVisibleSize.y + 'px'; |
| 1205 |
} |
| 1206 |
|
| 1207 |
|
| 1208 |
|
| 1209 |
_viewportSize.x = self.scrollWrap.clientWidth; |
| 1210 |
_viewportSize.y = self.scrollWrap.clientHeight; |
| 1211 |
|
| 1212 |
_updatePageScrollOffset(); |
| 1213 |
|
| 1214 |
_slideSize.x = _viewportSize.x + Math.round(_viewportSize.x * _options.spacing); |
| 1215 |
_slideSize.y = _viewportSize.y; |
| 1216 |
|
| 1217 |
_moveMainScroll(_slideSize.x * _currPositionIndex); |
| 1218 |
|
| 1219 |
_shout('beforeResize'); // even may be used for example to switch image sources |
| 1220 |
|
| 1221 |
|
| 1222 |
// don't re-calculate size on inital size update |
| 1223 |
if(_containerShiftIndex !== undefined) { |
| 1224 |
|
| 1225 |
var holder, |
| 1226 |
item, |
| 1227 |
hIndex; |
| 1228 |
|
| 1229 |
for(var i = 0; i < NUM_HOLDERS; i++) { |
| 1230 |
holder = _itemHolders[i]; |
| 1231 |
_setTranslateX( (i+_containerShiftIndex) * _slideSize.x, holder.el.style); |
| 1232 |
|
| 1233 |
hIndex = _currentItemIndex+i-1; |
| 1234 |
|
| 1235 |
if(_options.loop && _getNumItems() > 2) { |
| 1236 |
hIndex = _getLoopedId(hIndex); |
| 1237 |
} |
| 1238 |
|
| 1239 |
// update zoom level on items and refresh source (if needsUpdate) |
| 1240 |
item = _getItemAt( hIndex ); |
| 1241 |
|
| 1242 |
// re-render gallery item if `needsUpdate`, |
| 1243 |
// or doesn't have `bounds` (entirely new slide object) |
| 1244 |
if( item && (_itemsNeedUpdate || item.needsUpdate || !item.bounds) ) { |
| 1245 |
|
| 1246 |
self.cleanSlide( item ); |
| 1247 |
|
| 1248 |
self.setContent( holder, hIndex ); |
| 1249 |
|
| 1250 |
// if "center" slide |
| 1251 |
if(i === 1) { |
| 1252 |
self.currItem = item; |
| 1253 |
self.updateCurrZoomItem(true); |
| 1254 |
} |
| 1255 |
|
| 1256 |
item.needsUpdate = false; |
| 1257 |
|
| 1258 |
} else if(holder.index === -1 && hIndex >= 0) { |
| 1259 |
// add content first time |
| 1260 |
self.setContent( holder, hIndex ); |
| 1261 |
} |
| 1262 |
if(item && item.container) { |
| 1263 |
_calculateItemSize(item, _viewportSize); |
| 1264 |
_setImageSize(item); |
| 1265 |
_applyZoomPanToItem( item ); |
| 1266 |
} |
| 1267 |
|
| 1268 |
} |
| 1269 |
_itemsNeedUpdate = false; |
| 1270 |
} |
| 1271 |
|
| 1272 |
_startZoomLevel = _currZoomLevel = self.currItem.initialZoomLevel; |
| 1273 |
_currPanBounds = self.currItem.bounds; |
| 1274 |
|
| 1275 |
if(_currPanBounds) { |
| 1276 |
_panOffset.x = _currPanBounds.center.x; |
| 1277 |
_panOffset.y = _currPanBounds.center.y; |
| 1278 |
_applyCurrentZoomPan( true ); |
| 1279 |
} |
| 1280 |
|
| 1281 |
_shout('resize'); |
| 1282 |
}, |
| 1283 |
|
| 1284 |
// Zoom current item to |
| 1285 |
zoomTo: function(destZoomLevel, centerPoint, speed, easingFn, updateFn) { |
| 1286 |
/* |
| 1287 |
if(destZoomLevel === 'fit') { |
| 1288 |
destZoomLevel = self.currItem.fitRatio; |
| 1289 |
} else if(destZoomLevel === 'fill') { |
| 1290 |
destZoomLevel = self.currItem.fillRatio; |
| 1291 |
} |
| 1292 |
*/ |
| 1293 |
|
| 1294 |
if(centerPoint) { |
| 1295 |
_startZoomLevel = _currZoomLevel; |
| 1296 |
_midZoomPoint.x = Math.abs(centerPoint.x) - _panOffset.x ; |
| 1297 |
_midZoomPoint.y = Math.abs(centerPoint.y) - _panOffset.y ; |
| 1298 |
_equalizePoints(_startPanOffset, _panOffset); |
| 1299 |
} |
| 1300 |
|
| 1301 |
var destPanBounds = _calculatePanBounds(destZoomLevel, false), |
| 1302 |
destPanOffset = {}; |
| 1303 |
|
| 1304 |
_modifyDestPanOffset('x', destPanBounds, destPanOffset, destZoomLevel); |
| 1305 |
_modifyDestPanOffset('y', destPanBounds, destPanOffset, destZoomLevel); |
| 1306 |
|
| 1307 |
var initialZoomLevel = _currZoomLevel; |
| 1308 |
var initialPanOffset = { |
| 1309 |
x: _panOffset.x, |
| 1310 |
y: _panOffset.y |
| 1311 |
}; |
| 1312 |
|
| 1313 |
_roundPoint(destPanOffset); |
| 1314 |
|
| 1315 |
var onUpdate = function(now) { |
| 1316 |
if(now === 1) { |
| 1317 |
_currZoomLevel = destZoomLevel; |
| 1318 |
_panOffset.x = destPanOffset.x; |
| 1319 |
_panOffset.y = destPanOffset.y; |
| 1320 |
} else { |
| 1321 |
_currZoomLevel = (destZoomLevel - initialZoomLevel) * now + initialZoomLevel; |
| 1322 |
_panOffset.x = (destPanOffset.x - initialPanOffset.x) * now + initialPanOffset.x; |
| 1323 |
_panOffset.y = (destPanOffset.y - initialPanOffset.y) * now + initialPanOffset.y; |
| 1324 |
} |
| 1325 |
|
| 1326 |
if(updateFn) { |
| 1327 |
updateFn(now); |
| 1328 |
} |
| 1329 |
|
| 1330 |
_applyCurrentZoomPan( now === 1 ); |
| 1331 |
}; |
| 1332 |
|
| 1333 |
if(speed) { |
| 1334 |
_animateProp('customZoomTo', 0, 1, speed, easingFn || framework.easing.sine.inOut, onUpdate); |
| 1335 |
} else { |
| 1336 |
onUpdate(1); |
| 1337 |
} |
| 1338 |
} |
| 1339 |
|
| 1340 |
|
| 1341 |
}; |
| 1342 |
|
| 1343 |
|
| 1344 |
/*>>core*/ |
| 1345 |
|
| 1346 |
/*>>gestures*/ |
| 1347 |
/** |
| 1348 |
* Mouse/touch/pointer event handlers. |
| 1349 |
* |
| 1350 |
* separated from @core.js for readability |
| 1351 |
*/ |
| 1352 |
|
| 1353 |
var MIN_SWIPE_DISTANCE = 30, |
| 1354 |
DIRECTION_CHECK_OFFSET = 10; // amount of pixels to drag to determine direction of swipe |
| 1355 |
|
| 1356 |
var _gestureStartTime, |
| 1357 |
_gestureCheckSpeedTime, |
| 1358 |
|
| 1359 |
// pool of objects that are used during dragging of zooming |
| 1360 |
p = {}, // first point |
| 1361 |
p2 = {}, // second point (for zoom gesture) |
| 1362 |
delta = {}, |
| 1363 |
_currPoint = {}, |
| 1364 |
_startPoint = {}, |
| 1365 |
_currPointers = [], |
| 1366 |
_startMainScrollPos = {}, |
| 1367 |
_releaseAnimData, |
| 1368 |
_posPoints = [], // array of points during dragging, used to determine type of gesture |
| 1369 |
_tempPoint = {}, |
| 1370 |
|
| 1371 |
_isZoomingIn, |
| 1372 |
_verticalDragInitiated, |
| 1373 |
_oldAndroidTouchEndTimeout, |
| 1374 |
_currZoomedItemIndex = 0, |
| 1375 |
_centerPoint = _getEmptyPoint(), |
| 1376 |
_lastReleaseTime = 0, |
| 1377 |
_isDragging, // at least one pointer is down |
| 1378 |
_isMultitouch, // at least two _pointers are down |
| 1379 |
_zoomStarted, // zoom level changed during zoom gesture |
| 1380 |
_moved, |
| 1381 |
_dragAnimFrame, |
| 1382 |
_mainScrollShifted, |
| 1383 |
_currentPoints, // array of current touch points |
| 1384 |
_isZooming, |
| 1385 |
_currPointsDistance, |
| 1386 |
_startPointsDistance, |
| 1387 |
_currPanBounds, |
| 1388 |
_mainScrollPos = _getEmptyPoint(), |
| 1389 |
_currZoomElementStyle, |
| 1390 |
_mainScrollAnimating, // true, if animation after swipe gesture is running |
| 1391 |
_midZoomPoint = _getEmptyPoint(), |
| 1392 |
_currCenterPoint = _getEmptyPoint(), |
| 1393 |
_direction, |
| 1394 |
_isFirstMove, |
| 1395 |
_opacityChanged, |
| 1396 |
_bgOpacity, |
| 1397 |
_wasOverInitialZoom, |
| 1398 |
|
| 1399 |
_isEqualPoints = function(p1, p2) { |
| 1400 |
return p1.x === p2.x && p1.y === p2.y; |
| 1401 |
}, |
| 1402 |
_isNearbyPoints = function(touch0, touch1) { |
| 1403 |
return Math.abs(touch0.x - touch1.x) < DOUBLE_TAP_RADIUS && Math.abs(touch0.y - touch1.y) < DOUBLE_TAP_RADIUS; |
| 1404 |
}, |
| 1405 |
_calculatePointsDistance = function(p1, p2) { |
| 1406 |
_tempPoint.x = Math.abs( p1.x - p2.x ); |
| 1407 |
_tempPoint.y = Math.abs( p1.y - p2.y ); |
| 1408 |
return Math.sqrt(_tempPoint.x * _tempPoint.x + _tempPoint.y * _tempPoint.y); |
| 1409 |
}, |
| 1410 |
_stopDragUpdateLoop = function() { |
| 1411 |
if(_dragAnimFrame) { |
| 1412 |
_cancelAF(_dragAnimFrame); |
| 1413 |
_dragAnimFrame = null; |
| 1414 |
} |
| 1415 |
}, |
| 1416 |
_dragUpdateLoop = function() { |
| 1417 |
if(_isDragging) { |
| 1418 |
_dragAnimFrame = _requestAF(_dragUpdateLoop); |
| 1419 |
_renderMovement(); |
| 1420 |
} |
| 1421 |
}, |
| 1422 |
_canPan = function() { |
| 1423 |
return !(_options.scaleMode === 'fit' && _currZoomLevel === self.currItem.initialZoomLevel); |
| 1424 |
}, |
| 1425 |
|
| 1426 |
// find the closest parent DOM element |
| 1427 |
_closestElement = function(el, fn) { |
| 1428 |
if(!el || el === document) { |
| 1429 |
return false; |
| 1430 |
} |
| 1431 |
|
| 1432 |
// don't search elements above pswp__scroll-wrap |
| 1433 |
if(el.getAttribute('class') && el.getAttribute('class').indexOf('pswp__scroll-wrap') > -1 ) { |
| 1434 |
return false; |
| 1435 |
} |
| 1436 |
|
| 1437 |
if( fn(el) ) { |
| 1438 |
return el; |
| 1439 |
} |
| 1440 |
|
| 1441 |
return _closestElement(el.parentNode, fn); |
| 1442 |
}, |
| 1443 |
|
| 1444 |
_preventObj = {}, |
| 1445 |
_preventDefaultEventBehaviour = function(e, isDown) { |
| 1446 |
_preventObj.prevent = !_closestElement(e.target, _options.isClickableElement); |
| 1447 |
|
| 1448 |
_shout('preventDragEvent', e, isDown, _preventObj); |
| 1449 |
return _preventObj.prevent; |
| 1450 |
|
| 1451 |
}, |
| 1452 |
_convertTouchToPoint = function(touch, p) { |
| 1453 |
p.x = touch.pageX; |
| 1454 |
p.y = touch.pageY; |
| 1455 |
p.id = touch.identifier; |
| 1456 |
return p; |
| 1457 |
}, |
| 1458 |
_findCenterOfPoints = function(p1, p2, pCenter) { |
| 1459 |
pCenter.x = (p1.x + p2.x) * 0.5; |
| 1460 |
pCenter.y = (p1.y + p2.y) * 0.5; |
| 1461 |
}, |
| 1462 |
_pushPosPoint = function(time, x, y) { |
| 1463 |
if(time - _gestureCheckSpeedTime > 50) { |
| 1464 |
var o = _posPoints.length > 2 ? _posPoints.shift() : {}; |
| 1465 |
o.x = x; |
| 1466 |
o.y = y; |
| 1467 |
_posPoints.push(o); |
| 1468 |
_gestureCheckSpeedTime = time; |
| 1469 |
} |
| 1470 |
}, |
| 1471 |
|
| 1472 |
_calculateVerticalDragOpacityRatio = function() { |
| 1473 |
var yOffset = _panOffset.y - self.currItem.initialPosition.y; // difference between initial and current position |
| 1474 |
return 1 - Math.abs( yOffset / (_viewportSize.y / 2) ); |
| 1475 |
}, |
| 1476 |
|
| 1477 |
|
| 1478 |
// points pool, reused during touch events |
| 1479 |
_ePoint1 = {}, |
| 1480 |
_ePoint2 = {}, |
| 1481 |
_tempPointsArr = [], |
| 1482 |
_tempCounter, |
| 1483 |
_getTouchPoints = function(e) { |
| 1484 |
// clean up previous points, without recreating array |
| 1485 |
while(_tempPointsArr.length > 0) { |
| 1486 |
_tempPointsArr.pop(); |
| 1487 |
} |
| 1488 |
|
| 1489 |
if(!_pointerEventEnabled) { |
| 1490 |
if(e.type.indexOf('touch') > -1) { |
| 1491 |
|
| 1492 |
if(e.touches && e.touches.length > 0) { |
| 1493 |
_tempPointsArr[0] = _convertTouchToPoint(e.touches[0], _ePoint1); |
| 1494 |
if(e.touches.length > 1) { |
| 1495 |
_tempPointsArr[1] = _convertTouchToPoint(e.touches[1], _ePoint2); |
| 1496 |
} |
| 1497 |
} |
| 1498 |
|
| 1499 |
} else { |
| 1500 |
_ePoint1.x = e.pageX; |
| 1501 |
_ePoint1.y = e.pageY; |
| 1502 |
_ePoint1.id = ''; |
| 1503 |
_tempPointsArr[0] = _ePoint1;//_ePoint1; |
| 1504 |
} |
| 1505 |
} else { |
| 1506 |
_tempCounter = 0; |
| 1507 |
// we can use forEach, as pointer events are supported only in modern browsers |
| 1508 |
_currPointers.forEach(function(p) { |
| 1509 |
if(_tempCounter === 0) { |
| 1510 |
_tempPointsArr[0] = p; |
| 1511 |
} else if(_tempCounter === 1) { |
| 1512 |
_tempPointsArr[1] = p; |
| 1513 |
} |
| 1514 |
_tempCounter++; |
| 1515 |
|
| 1516 |
}); |
| 1517 |
} |
| 1518 |
return _tempPointsArr; |
| 1519 |
}, |
| 1520 |
|
| 1521 |
_panOrMoveMainScroll = function(axis, delta) { |
| 1522 |
|
| 1523 |
var panFriction, |
| 1524 |
overDiff = 0, |
| 1525 |
newOffset = _panOffset[axis] + delta[axis], |
| 1526 |
startOverDiff, |
| 1527 |
dir = delta[axis] > 0, |
| 1528 |
newMainScrollPosition = _mainScrollPos.x + delta.x, |
| 1529 |
mainScrollDiff = _mainScrollPos.x - _startMainScrollPos.x, |
| 1530 |
newPanPos, |
| 1531 |
newMainScrollPos; |
| 1532 |
|
| 1533 |
// calculate fdistance over the bounds and friction |
| 1534 |
if(newOffset > _currPanBounds.min[axis] || newOffset < _currPanBounds.max[axis]) { |
| 1535 |
panFriction = _options.panEndFriction; |
| 1536 |
// Linear increasing of friction, so at 1/4 of viewport it's at max value. |
| 1537 |
// Looks not as nice as was expected. Left for history. |
| 1538 |
// panFriction = (1 - (_panOffset[axis] + delta[axis] + panBounds.min[axis]) / (_viewportSize[axis] / 4) ); |
| 1539 |
} else { |
| 1540 |
panFriction = 1; |
| 1541 |
} |
| 1542 |
|
| 1543 |
newOffset = _panOffset[axis] + delta[axis] * panFriction; |
| 1544 |
|
| 1545 |
// move main scroll or start panning |
| 1546 |
if(_options.allowPanToNext || _currZoomLevel === self.currItem.initialZoomLevel) { |
| 1547 |
|
| 1548 |
|
| 1549 |
if(!_currZoomElementStyle) { |
| 1550 |
|
| 1551 |
newMainScrollPos = newMainScrollPosition; |
| 1552 |
|
| 1553 |
} else if(_direction === 'h' && axis === 'x' && !_zoomStarted ) { |
| 1554 |
|
| 1555 |
if(dir) { |
| 1556 |
if(newOffset > _currPanBounds.min[axis]) { |
| 1557 |
panFriction = _options.panEndFriction; |
| 1558 |
overDiff = _currPanBounds.min[axis] - newOffset; |
| 1559 |
startOverDiff = _currPanBounds.min[axis] - _startPanOffset[axis]; |
| 1560 |
} |
| 1561 |
|
| 1562 |
// drag right |
| 1563 |
if( (startOverDiff <= 0 || mainScrollDiff < 0) && _getNumItems() > 1 ) { |
| 1564 |
newMainScrollPos = newMainScrollPosition; |
| 1565 |
if(mainScrollDiff < 0 && newMainScrollPosition > _startMainScrollPos.x) { |
| 1566 |
newMainScrollPos = _startMainScrollPos.x; |
| 1567 |
} |
| 1568 |
} else { |
| 1569 |
if(_currPanBounds.min.x !== _currPanBounds.max.x) { |
| 1570 |
newPanPos = newOffset; |
| 1571 |
} |
| 1572 |
|
| 1573 |
} |
| 1574 |
|
| 1575 |
} else { |
| 1576 |
|
| 1577 |
if(newOffset < _currPanBounds.max[axis] ) { |
| 1578 |
panFriction =_options.panEndFriction; |
| 1579 |
overDiff = newOffset - _currPanBounds.max[axis]; |
| 1580 |
startOverDiff = _startPanOffset[axis] - _currPanBounds.max[axis]; |
| 1581 |
} |
| 1582 |
|
| 1583 |
if( (startOverDiff <= 0 || mainScrollDiff > 0) && _getNumItems() > 1 ) { |
| 1584 |
newMainScrollPos = newMainScrollPosition; |
| 1585 |
|
| 1586 |
if(mainScrollDiff > 0 && newMainScrollPosition < _startMainScrollPos.x) { |
| 1587 |
newMainScrollPos = _startMainScrollPos.x; |
| 1588 |
} |
| 1589 |
|
| 1590 |
} else { |
| 1591 |
if(_currPanBounds.min.x !== _currPanBounds.max.x) { |
| 1592 |
newPanPos = newOffset; |
| 1593 |
} |
| 1594 |
} |
| 1595 |
|
| 1596 |
} |
| 1597 |
|
| 1598 |
|
| 1599 |
// |
| 1600 |
} |
| 1601 |
|
| 1602 |
if(axis === 'x') { |
| 1603 |
|
| 1604 |
if(newMainScrollPos !== undefined) { |
| 1605 |
_moveMainScroll(newMainScrollPos, true); |
| 1606 |
if(newMainScrollPos === _startMainScrollPos.x) { |
| 1607 |
_mainScrollShifted = false; |
| 1608 |
} else { |
| 1609 |
_mainScrollShifted = true; |
| 1610 |
} |
| 1611 |
} |
| 1612 |
|
| 1613 |
if(_currPanBounds.min.x !== _currPanBounds.max.x) { |
| 1614 |
if(newPanPos !== undefined) { |
| 1615 |
_panOffset.x = newPanPos; |
| 1616 |
} else if(!_mainScrollShifted) { |
| 1617 |
_panOffset.x += delta.x * panFriction; |
| 1618 |
} |
| 1619 |
} |
| 1620 |
|
| 1621 |
return newMainScrollPos !== undefined; |
| 1622 |
} |
| 1623 |
|
| 1624 |
} |
| 1625 |
|
| 1626 |
if(!_mainScrollAnimating) { |
| 1627 |
|
| 1628 |
if(!_mainScrollShifted) { |
| 1629 |
if(_currZoomLevel > self.currItem.fitRatio) { |
| 1630 |
_panOffset[axis] += delta[axis] * panFriction; |
| 1631 |
|
| 1632 |
} |
| 1633 |
} |
| 1634 |
|
| 1635 |
|
| 1636 |
} |
| 1637 |
|
| 1638 |
}, |
| 1639 |
|
| 1640 |
// Pointerdown/touchstart/mousedown handler |
| 1641 |
_onDragStart = function(e) { |
| 1642 |
|
| 1643 |
// Allow dragging only via left mouse button. |
| 1644 |
// As this handler is not added in IE8 - we ignore e.which |
| 1645 |
// |
| 1646 |
// http://www.quirksmode.org/js/events_properties.html |
| 1647 |
// https://developer.mozilla.org/en-US/docs/Web/API/event.button |
| 1648 |
if(e.type === 'mousedown' && e.button > 0 ) { |
| 1649 |
return; |
| 1650 |
} |
| 1651 |
|
| 1652 |
if(_initialZoomRunning) { |
| 1653 |
e.preventDefault(); |
| 1654 |
return; |
| 1655 |
} |
| 1656 |
|
| 1657 |
if(_oldAndroidTouchEndTimeout && e.type === 'mousedown') { |
| 1658 |
return; |
| 1659 |
} |
| 1660 |
|
| 1661 |
if(_preventDefaultEventBehaviour(e, true)) { |
| 1662 |
e.preventDefault(); |
| 1663 |
} |
| 1664 |
|
| 1665 |
|
| 1666 |
|
| 1667 |
_shout('pointerDown'); |
| 1668 |
|
| 1669 |
if(_pointerEventEnabled) { |
| 1670 |
var pointerIndex = framework.arraySearch(_currPointers, e.pointerId, 'id'); |
| 1671 |
if(pointerIndex < 0) { |
| 1672 |
pointerIndex = _currPointers.length; |
| 1673 |
} |
| 1674 |
_currPointers[pointerIndex] = {x:e.pageX, y:e.pageY, id: e.pointerId}; |
| 1675 |
} |
| 1676 |
|
| 1677 |
|
| 1678 |
|
| 1679 |
var startPointsList = _getTouchPoints(e), |
| 1680 |
numPoints = startPointsList.length; |
| 1681 |
|
| 1682 |
_currentPoints = null; |
| 1683 |
|
| 1684 |
_stopAllAnimations(); |
| 1685 |
|
| 1686 |
// init drag |
| 1687 |
if(!_isDragging || numPoints === 1) { |
| 1688 |
|
| 1689 |
|
| 1690 |
|
| 1691 |
_isDragging = _isFirstMove = true; |
| 1692 |
framework.bind(window, _upMoveEvents, self); |
| 1693 |
|
| 1694 |
_isZoomingIn = |
| 1695 |
_wasOverInitialZoom = |
| 1696 |
_opacityChanged = |
| 1697 |
_verticalDragInitiated = |
| 1698 |
_mainScrollShifted = |
| 1699 |
_moved = |
| 1700 |
_isMultitouch = |
| 1701 |
_zoomStarted = false; |
| 1702 |
|
| 1703 |
_direction = null; |
| 1704 |
|
| 1705 |
_shout('firstTouchStart', startPointsList); |
| 1706 |
|
| 1707 |
_equalizePoints(_startPanOffset, _panOffset); |
| 1708 |
|
| 1709 |
_currPanDist.x = _currPanDist.y = 0; |
| 1710 |
_equalizePoints(_currPoint, startPointsList[0]); |
| 1711 |
_equalizePoints(_startPoint, _currPoint); |
| 1712 |
|
| 1713 |
//_equalizePoints(_startMainScrollPos, _mainScrollPos); |
| 1714 |
_startMainScrollPos.x = _slideSize.x * _currPositionIndex; |
| 1715 |
|
| 1716 |
_posPoints = [{ |
| 1717 |
x: _currPoint.x, |
| 1718 |
y: _currPoint.y |
| 1719 |
}]; |
| 1720 |
|
| 1721 |
_gestureCheckSpeedTime = _gestureStartTime = _getCurrentTime(); |
| 1722 |
|
| 1723 |
//_mainScrollAnimationEnd(true); |
| 1724 |
_calculatePanBounds( _currZoomLevel, true ); |
| 1725 |
|
| 1726 |
// Start rendering |
| 1727 |
_stopDragUpdateLoop(); |
| 1728 |
_dragUpdateLoop(); |
| 1729 |
|
| 1730 |
} |
| 1731 |
|
| 1732 |
// init zoom |
| 1733 |
if(!_isZooming && numPoints > 1 && !_mainScrollAnimating && !_mainScrollShifted) { |
| 1734 |
_startZoomLevel = _currZoomLevel; |
| 1735 |
_zoomStarted = false; // true if zoom changed at least once |
| 1736 |
|
| 1737 |
_isZooming = _isMultitouch = true; |
| 1738 |
_currPanDist.y = _currPanDist.x = 0; |
| 1739 |
|
| 1740 |
_equalizePoints(_startPanOffset, _panOffset); |
| 1741 |
|
| 1742 |
_equalizePoints(p, startPointsList[0]); |
| 1743 |
_equalizePoints(p2, startPointsList[1]); |
| 1744 |
|
| 1745 |
_findCenterOfPoints(p, p2, _currCenterPoint); |
| 1746 |
|
| 1747 |
_midZoomPoint.x = Math.abs(_currCenterPoint.x) - _panOffset.x; |
| 1748 |
_midZoomPoint.y = Math.abs(_currCenterPoint.y) - _panOffset.y; |
| 1749 |
_currPointsDistance = _startPointsDistance = _calculatePointsDistance(p, p2); |
| 1750 |
} |
| 1751 |
|
| 1752 |
|
| 1753 |
}, |
| 1754 |
|
| 1755 |
// Pointermove/touchmove/mousemove handler |
| 1756 |
_onDragMove = function(e) { |
| 1757 |
|
| 1758 |
e.preventDefault(); |
| 1759 |
|
| 1760 |
if(_pointerEventEnabled) { |
| 1761 |
var pointerIndex = framework.arraySearch(_currPointers, e.pointerId, 'id'); |
| 1762 |
if(pointerIndex > -1) { |
| 1763 |
var p = _currPointers[pointerIndex]; |
| 1764 |
p.x = e.pageX; |
| 1765 |
p.y = e.pageY; |
| 1766 |
} |
| 1767 |
} |
| 1768 |
|
| 1769 |
if(_isDragging) { |
| 1770 |
var touchesList = _getTouchPoints(e); |
| 1771 |
if(!_direction && !_moved && !_isZooming) { |
| 1772 |
|
| 1773 |
if(_mainScrollPos.x !== _slideSize.x * _currPositionIndex) { |
| 1774 |
// if main scroll position is shifted – direction is always horizontal |
| 1775 |
_direction = 'h'; |
| 1776 |
} else { |
| 1777 |
var diff = Math.abs(touchesList[0].x - _currPoint.x) - Math.abs(touchesList[0].y - _currPoint.y); |
| 1778 |
// check the direction of movement |
| 1779 |
if(Math.abs(diff) >= DIRECTION_CHECK_OFFSET) { |
| 1780 |
_direction = diff > 0 ? 'h' : 'v'; |
| 1781 |
_currentPoints = touchesList; |
| 1782 |
} |
| 1783 |
} |
| 1784 |
|
| 1785 |
} else { |
| 1786 |
_currentPoints = touchesList; |
| 1787 |
} |
| 1788 |
} |
| 1789 |
}, |
| 1790 |
// |
| 1791 |
_renderMovement = function() { |
| 1792 |
|
| 1793 |
if(!_currentPoints) { |
| 1794 |
return; |
| 1795 |
} |
| 1796 |
|
| 1797 |
var numPoints = _currentPoints.length; |
| 1798 |
|
| 1799 |
if(numPoints === 0) { |
| 1800 |
return; |
| 1801 |
} |
| 1802 |
|
| 1803 |
_equalizePoints(p, _currentPoints[0]); |
| 1804 |
|
| 1805 |
delta.x = p.x - _currPoint.x; |
| 1806 |
delta.y = p.y - _currPoint.y; |
| 1807 |
|
| 1808 |
if(_isZooming && numPoints > 1) { |
| 1809 |
// Handle behaviour for more than 1 point |
| 1810 |
|
| 1811 |
_currPoint.x = p.x; |
| 1812 |
_currPoint.y = p.y; |
| 1813 |
|
| 1814 |
// check if one of two points changed |
| 1815 |
if( !delta.x && !delta.y && _isEqualPoints(_currentPoints[1], p2) ) { |
| 1816 |
return; |
| 1817 |
} |
| 1818 |
|
| 1819 |
_equalizePoints(p2, _currentPoints[1]); |
| 1820 |
|
| 1821 |
|
| 1822 |
if(!_zoomStarted) { |
| 1823 |
_zoomStarted = true; |
| 1824 |
_shout('zoomGestureStarted'); |
| 1825 |
} |
| 1826 |
|
| 1827 |
// Distance between two points |
| 1828 |
var pointsDistance = _calculatePointsDistance(p,p2); |
| 1829 |
|
| 1830 |
var zoomLevel = _calculateZoomLevel(pointsDistance); |
| 1831 |
|
| 1832 |
// slightly over the of initial zoom level |
| 1833 |
if(zoomLevel > self.currItem.initialZoomLevel + self.currItem.initialZoomLevel / 15) { |
| 1834 |
_wasOverInitialZoom = true; |
| 1835 |
} |
| 1836 |
|
| 1837 |
// Apply the friction if zoom level is out of the bounds |
| 1838 |
var zoomFriction = 1, |
| 1839 |
minZoomLevel = _getMinZoomLevel(), |
| 1840 |
maxZoomLevel = _getMaxZoomLevel(); |
| 1841 |
|
| 1842 |
if ( zoomLevel < minZoomLevel ) { |
| 1843 |
|
| 1844 |
if(_options.pinchToClose && !_wasOverInitialZoom && _startZoomLevel <= self.currItem.initialZoomLevel) { |
| 1845 |
// fade out background if zooming out |
| 1846 |
var minusDiff = minZoomLevel - zoomLevel; |
| 1847 |
var percent = 1 - minusDiff / (minZoomLevel / 1.2); |
| 1848 |
|
| 1849 |
_applyBgOpacity(percent); |
| 1850 |
_shout('onPinchClose', percent); |
| 1851 |
_opacityChanged = true; |
| 1852 |
} else { |
| 1853 |
zoomFriction = (minZoomLevel - zoomLevel) / minZoomLevel; |
| 1854 |
if(zoomFriction > 1) { |
| 1855 |
zoomFriction = 1; |
| 1856 |
} |
| 1857 |
zoomLevel = minZoomLevel - zoomFriction * (minZoomLevel / 3); |
| 1858 |
} |
| 1859 |
|
| 1860 |
} else if ( zoomLevel > maxZoomLevel ) { |
| 1861 |
// 1.5 - extra zoom level above the max. E.g. if max is x6, real max 6 + 1.5 = 7.5 |
| 1862 |
zoomFriction = (zoomLevel - maxZoomLevel) / ( minZoomLevel * 6 ); |
| 1863 |
if(zoomFriction > 1) { |
| 1864 |
zoomFriction = 1; |
| 1865 |
} |
| 1866 |
zoomLevel = maxZoomLevel + zoomFriction * minZoomLevel; |
| 1867 |
} |
| 1868 |
|
| 1869 |
if(zoomFriction < 0) { |
| 1870 |
zoomFriction = 0; |
| 1871 |
} |
| 1872 |
|
| 1873 |
// distance between touch points after friction is applied |
| 1874 |
_currPointsDistance = pointsDistance; |
| 1875 |
|
| 1876 |
// _centerPoint - The point in the middle of two pointers |
| 1877 |
_findCenterOfPoints(p, p2, _centerPoint); |
| 1878 |
|
| 1879 |
// paning with two pointers pressed |
| 1880 |
_currPanDist.x += _centerPoint.x - _currCenterPoint.x; |
| 1881 |
_currPanDist.y += _centerPoint.y - _currCenterPoint.y; |
| 1882 |
_equalizePoints(_currCenterPoint, _centerPoint); |
| 1883 |
|
| 1884 |
_panOffset.x = _calculatePanOffset('x', zoomLevel); |
| 1885 |
_panOffset.y = _calculatePanOffset('y', zoomLevel); |
| 1886 |
|
| 1887 |
_isZoomingIn = zoomLevel > _currZoomLevel; |
| 1888 |
_currZoomLevel = zoomLevel; |
| 1889 |
_applyCurrentZoomPan(); |
| 1890 |
|
| 1891 |
} else { |
| 1892 |
|
| 1893 |
// handle behaviour for one point (dragging or panning) |
| 1894 |
|
| 1895 |
if(!_direction) { |
| 1896 |
return; |
| 1897 |
} |
| 1898 |
|
| 1899 |
if(_isFirstMove) { |
| 1900 |
_isFirstMove = false; |
| 1901 |
|
| 1902 |
// subtract drag distance that was used during the detection direction |
| 1903 |
|
| 1904 |
if( Math.abs(delta.x) >= DIRECTION_CHECK_OFFSET) { |
| 1905 |
delta.x -= _currentPoints[0].x - _startPoint.x; |
| 1906 |
} |
| 1907 |
|
| 1908 |
if( Math.abs(delta.y) >= DIRECTION_CHECK_OFFSET) { |
| 1909 |
delta.y -= _currentPoints[0].y - _startPoint.y; |
| 1910 |
} |
| 1911 |
} |
| 1912 |
|
| 1913 |
_currPoint.x = p.x; |
| 1914 |
_currPoint.y = p.y; |
| 1915 |
|
| 1916 |
// do nothing if pointers position hasn't changed |
| 1917 |
if(delta.x === 0 && delta.y === 0) { |
| 1918 |
return; |
| 1919 |
} |
| 1920 |
|
| 1921 |
if(_direction === 'v' && _options.closeOnVerticalDrag) { |
| 1922 |
if(!_canPan()) { |
| 1923 |
_currPanDist.y += delta.y; |
| 1924 |
_panOffset.y += delta.y; |
| 1925 |
|
| 1926 |
var opacityRatio = _calculateVerticalDragOpacityRatio(); |
| 1927 |
|
| 1928 |
_verticalDragInitiated = true; |
| 1929 |
_shout('onVerticalDrag', opacityRatio); |
| 1930 |
|
| 1931 |
_applyBgOpacity(opacityRatio); |
| 1932 |
_applyCurrentZoomPan(); |
| 1933 |
return ; |
| 1934 |
} |
| 1935 |
} |
| 1936 |
|
| 1937 |
_pushPosPoint(_getCurrentTime(), p.x, p.y); |
| 1938 |
|
| 1939 |
_moved = true; |
| 1940 |
_currPanBounds = self.currItem.bounds; |
| 1941 |
|
| 1942 |
var mainScrollChanged = _panOrMoveMainScroll('x', delta); |
| 1943 |
if(!mainScrollChanged) { |
| 1944 |
_panOrMoveMainScroll('y', delta); |
| 1945 |
|
| 1946 |
_roundPoint(_panOffset); |
| 1947 |
_applyCurrentZoomPan(); |
| 1948 |
} |
| 1949 |
|
| 1950 |
} |
| 1951 |
|
| 1952 |
}, |
| 1953 |
|
| 1954 |
// Pointerup/pointercancel/touchend/touchcancel/mouseup event handler |
| 1955 |
_onDragRelease = function(e) { |
| 1956 |
|
| 1957 |
if(_features.isOldAndroid ) { |
| 1958 |
|
| 1959 |
if(_oldAndroidTouchEndTimeout && e.type === 'mouseup') { |
| 1960 |
return; |
| 1961 |
} |
| 1962 |
|
| 1963 |
// on Android (v4.1, 4.2, 4.3 & possibly older) |
| 1964 |
// ghost mousedown/up event isn't preventable via e.preventDefault, |
| 1965 |
// which causes fake mousedown event |
| 1966 |
// so we block mousedown/up for 600ms |
| 1967 |
if( e.type.indexOf('touch') > -1 ) { |
| 1968 |
clearTimeout(_oldAndroidTouchEndTimeout); |
| 1969 |
_oldAndroidTouchEndTimeout = setTimeout(function() { |
| 1970 |
_oldAndroidTouchEndTimeout = 0; |
| 1971 |
}, 600); |
| 1972 |
} |
| 1973 |
|
| 1974 |
} |
| 1975 |
|
| 1976 |
_shout('pointerUp'); |
| 1977 |
|
| 1978 |
if(_preventDefaultEventBehaviour(e, false)) { |
| 1979 |
e.preventDefault(); |
| 1980 |
} |
| 1981 |
|
| 1982 |
var releasePoint; |
| 1983 |
|
| 1984 |
if(_pointerEventEnabled) { |
| 1985 |
var pointerIndex = framework.arraySearch(_currPointers, e.pointerId, 'id'); |
| 1986 |
|
| 1987 |
if(pointerIndex > -1) { |
| 1988 |
releasePoint = _currPointers.splice(pointerIndex, 1)[0]; |
| 1989 |
|
| 1990 |
if(navigator.msPointerEnabled) { |
| 1991 |
var MSPOINTER_TYPES = { |
| 1992 |
4: 'mouse', // event.MSPOINTER_TYPE_MOUSE |
| 1993 |
2: 'touch', // event.MSPOINTER_TYPE_TOUCH |
| 1994 |
3: 'pen' // event.MSPOINTER_TYPE_PEN |
| 1995 |
}; |
| 1996 |
releasePoint.type = MSPOINTER_TYPES[e.pointerType]; |
| 1997 |
|
| 1998 |
if(!releasePoint.type) { |
| 1999 |
releasePoint.type = e.pointerType || 'mouse'; |
| 2000 |
} |
| 2001 |
} else { |
| 2002 |
releasePoint.type = e.pointerType || 'mouse'; |
| 2003 |
} |
| 2004 |
|
| 2005 |
} |
| 2006 |
} |
| 2007 |
|
| 2008 |
var touchList = _getTouchPoints(e), |
| 2009 |
gestureType, |
| 2010 |
numPoints = touchList.length; |
| 2011 |
|
| 2012 |
if(e.type === 'mouseup') { |
| 2013 |
numPoints = 0; |
| 2014 |
} |
| 2015 |
|
| 2016 |
// Do nothing if there were 3 touch points or more |
| 2017 |
if(numPoints === 2) { |
| 2018 |
_currentPoints = null; |
| 2019 |
return true; |
| 2020 |
} |
| 2021 |
|
| 2022 |
// if second pointer released |
| 2023 |
if(numPoints === 1) { |
| 2024 |
_equalizePoints(_startPoint, touchList[0]); |
| 2025 |
} |
| 2026 |
|
| 2027 |
|
| 2028 |
// pointer hasn't moved, send "tap release" point |
| 2029 |
if(numPoints === 0 && !_direction && !_mainScrollAnimating) { |
| 2030 |
if(!releasePoint) { |
| 2031 |
if(e.type === 'mouseup') { |
| 2032 |
releasePoint = {x: e.pageX, y: e.pageY, type:'mouse'}; |
| 2033 |
} else if(e.changedTouches && e.changedTouches[0]) { |
| 2034 |
releasePoint = {x: e.changedTouches[0].pageX, y: e.changedTouches[0].pageY, type:'touch'}; |
| 2035 |
} |
| 2036 |
} |
| 2037 |
|
| 2038 |
_shout('touchRelease', e, releasePoint); |
| 2039 |
} |
| 2040 |
|
| 2041 |
// Difference in time between releasing of two last touch points (zoom gesture) |
| 2042 |
var releaseTimeDiff = -1; |
| 2043 |
|
| 2044 |
// Gesture completed, no pointers left |
| 2045 |
if(numPoints === 0) { |
| 2046 |
_isDragging = false; |
| 2047 |
framework.unbind(window, _upMoveEvents, self); |
| 2048 |
|
| 2049 |
_stopDragUpdateLoop(); |
| 2050 |
|
| 2051 |
if(_isZooming) { |
| 2052 |
// Two points released at the same time |
| 2053 |
releaseTimeDiff = 0; |
| 2054 |
} else if(_lastReleaseTime !== -1) { |
| 2055 |
releaseTimeDiff = _getCurrentTime() - _lastReleaseTime; |
| 2056 |
} |
| 2057 |
} |
| 2058 |
_lastReleaseTime = numPoints === 1 ? _getCurrentTime() : -1; |
| 2059 |
|
| 2060 |
if(releaseTimeDiff !== -1 && releaseTimeDiff < 150) { |
| 2061 |
gestureType = 'zoom'; |
| 2062 |
} else { |
| 2063 |
gestureType = 'swipe'; |
| 2064 |
} |
| 2065 |
|
| 2066 |
if(_isZooming && numPoints < 2) { |
| 2067 |
_isZooming = false; |
| 2068 |
|
| 2069 |
// Only second point released |
| 2070 |
if(numPoints === 1) { |
| 2071 |
gestureType = 'zoomPointerUp'; |
| 2072 |
} |
| 2073 |
_shout('zoomGestureEnded'); |
| 2074 |
} |
| 2075 |
|
| 2076 |
_currentPoints = null; |
| 2077 |
if(!_moved && !_zoomStarted && !_mainScrollAnimating && !_verticalDragInitiated) { |
| 2078 |
// nothing to animate |
| 2079 |
return; |
| 2080 |
} |
| 2081 |
|
| 2082 |
_stopAllAnimations(); |
| 2083 |
|
| 2084 |
|
| 2085 |
if(!_releaseAnimData) { |
| 2086 |
_releaseAnimData = _initDragReleaseAnimationData(); |
| 2087 |
} |
| 2088 |
|
| 2089 |
_releaseAnimData.calculateSwipeSpeed('x'); |
| 2090 |
|
| 2091 |
|
| 2092 |
if(_verticalDragInitiated) { |
| 2093 |
|
| 2094 |
var opacityRatio = _calculateVerticalDragOpacityRatio(); |
| 2095 |
|
| 2096 |
if(opacityRatio < _options.verticalDragRange) { |
| 2097 |
self.close(); |
| 2098 |
} else { |
| 2099 |
var initalPanY = _panOffset.y, |
| 2100 |
initialBgOpacity = _bgOpacity; |
| 2101 |
|
| 2102 |
_animateProp('verticalDrag', 0, 1, 300, framework.easing.cubic.out, function(now) { |
| 2103 |
|
| 2104 |
_panOffset.y = (self.currItem.initialPosition.y - initalPanY) * now + initalPanY; |
| 2105 |
|
| 2106 |
_applyBgOpacity( (1 - initialBgOpacity) * now + initialBgOpacity ); |
| 2107 |
_applyCurrentZoomPan(); |
| 2108 |
}); |
| 2109 |
|
| 2110 |
_shout('onVerticalDrag', 1); |
| 2111 |
} |
| 2112 |
|
| 2113 |
return; |
| 2114 |
} |
| 2115 |
|
| 2116 |
|
| 2117 |
// main scroll |
| 2118 |
if( (_mainScrollShifted || _mainScrollAnimating) && numPoints === 0) { |
| 2119 |
var itemChanged = _finishSwipeMainScrollGesture(gestureType, _releaseAnimData); |
| 2120 |
if(itemChanged) { |
| 2121 |
return; |
| 2122 |
} |
| 2123 |
gestureType = 'zoomPointerUp'; |
| 2124 |
} |
| 2125 |
|
| 2126 |
// prevent zoom/pan animation when main scroll animation runs |
| 2127 |
if(_mainScrollAnimating) { |
| 2128 |
return; |
| 2129 |
} |
| 2130 |
|
| 2131 |
// Complete simple zoom gesture (reset zoom level if it's out of the bounds) |
| 2132 |
if(gestureType !== 'swipe') { |
| 2133 |
_completeZoomGesture(); |
| 2134 |
return; |
| 2135 |
} |
| 2136 |
|
| 2137 |
// Complete pan gesture if main scroll is not shifted, and it's possible to pan current image |
| 2138 |
if(!_mainScrollShifted && _currZoomLevel > self.currItem.fitRatio) { |
| 2139 |
_completePanGesture(_releaseAnimData); |
| 2140 |
} |
| 2141 |
}, |
| 2142 |
|
| 2143 |
|
| 2144 |
// Returns object with data about gesture |
| 2145 |
// It's created only once and then reused |
| 2146 |
_initDragReleaseAnimationData = function() { |
| 2147 |
// temp local vars |
| 2148 |
var lastFlickDuration, |
| 2149 |
tempReleasePos; |
| 2150 |
|
| 2151 |
// s = this |
| 2152 |
var s = { |
| 2153 |
lastFlickOffset: {}, |
| 2154 |
lastFlickDist: {}, |
| 2155 |
lastFlickSpeed: {}, |
| 2156 |
slowDownRatio: {}, |
| 2157 |
slowDownRatioReverse: {}, |
| 2158 |
speedDecelerationRatio: {}, |
| 2159 |
speedDecelerationRatioAbs: {}, |
| 2160 |
distanceOffset: {}, |
| 2161 |
backAnimDestination: {}, |
| 2162 |
backAnimStarted: {}, |
| 2163 |
calculateSwipeSpeed: function(axis) { |
| 2164 |
|
| 2165 |
|
| 2166 |
if( _posPoints.length > 1) { |
| 2167 |
lastFlickDuration = _getCurrentTime() - _gestureCheckSpeedTime + 50; |
| 2168 |
tempReleasePos = _posPoints[_posPoints.length-2][axis]; |
| 2169 |
} else { |
| 2170 |
lastFlickDuration = _getCurrentTime() - _gestureStartTime; // total gesture duration |
| 2171 |
tempReleasePos = _startPoint[axis]; |
| 2172 |
} |
| 2173 |
s.lastFlickOffset[axis] = _currPoint[axis] - tempReleasePos; |
| 2174 |
s.lastFlickDist[axis] = Math.abs(s.lastFlickOffset[axis]); |
| 2175 |
if(s.lastFlickDist[axis] > 20) { |
| 2176 |
s.lastFlickSpeed[axis] = s.lastFlickOffset[axis] / lastFlickDuration; |
| 2177 |
} else { |
| 2178 |
s.lastFlickSpeed[axis] = 0; |
| 2179 |
} |
| 2180 |
if( Math.abs(s.lastFlickSpeed[axis]) < 0.1 ) { |
| 2181 |
s.lastFlickSpeed[axis] = 0; |
| 2182 |
} |
| 2183 |
|
| 2184 |
s.slowDownRatio[axis] = 0.95; |
| 2185 |
s.slowDownRatioReverse[axis] = 1 - s.slowDownRatio[axis]; |
| 2186 |
s.speedDecelerationRatio[axis] = 1; |
| 2187 |
}, |
| 2188 |
|
| 2189 |
calculateOverBoundsAnimOffset: function(axis, speed) { |
| 2190 |
if(!s.backAnimStarted[axis]) { |
| 2191 |
|
| 2192 |
if(_panOffset[axis] > _currPanBounds.min[axis]) { |
| 2193 |
s.backAnimDestination[axis] = _currPanBounds.min[axis]; |
| 2194 |
|
| 2195 |
} else if(_panOffset[axis] < _currPanBounds.max[axis]) { |
| 2196 |
s.backAnimDestination[axis] = _currPanBounds.max[axis]; |
| 2197 |
} |
| 2198 |
|
| 2199 |
if(s.backAnimDestination[axis] !== undefined) { |
| 2200 |
s.slowDownRatio[axis] = 0.7; |
| 2201 |
s.slowDownRatioReverse[axis] = 1 - s.slowDownRatio[axis]; |
| 2202 |
if(s.speedDecelerationRatioAbs[axis] < 0.05) { |
| 2203 |
|
| 2204 |
s.lastFlickSpeed[axis] = 0; |
| 2205 |
s.backAnimStarted[axis] = true; |
| 2206 |
|
| 2207 |
_animateProp('bounceZoomPan'+axis,_panOffset[axis], |
| 2208 |
s.backAnimDestination[axis], |
| 2209 |
speed || 300, |
| 2210 |
framework.easing.sine.out, |
| 2211 |
function(pos) { |
| 2212 |
_panOffset[axis] = pos; |
| 2213 |
_applyCurrentZoomPan(); |
| 2214 |
} |
| 2215 |
); |
| 2216 |
|
| 2217 |
} |
| 2218 |
} |
| 2219 |
} |
| 2220 |
}, |
| 2221 |
|
| 2222 |
// Reduces the speed by slowDownRatio (per 10ms) |
| 2223 |
calculateAnimOffset: function(axis) { |
| 2224 |
if(!s.backAnimStarted[axis]) { |
| 2225 |
s.speedDecelerationRatio[axis] = s.speedDecelerationRatio[axis] * (s.slowDownRatio[axis] + |
| 2226 |
s.slowDownRatioReverse[axis] - |
| 2227 |
s.slowDownRatioReverse[axis] * s.timeDiff / 10); |
| 2228 |
|
| 2229 |
s.speedDecelerationRatioAbs[axis] = Math.abs(s.lastFlickSpeed[axis] * s.speedDecelerationRatio[axis]); |
| 2230 |
s.distanceOffset[axis] = s.lastFlickSpeed[axis] * s.speedDecelerationRatio[axis] * s.timeDiff; |
| 2231 |
_panOffset[axis] += s.distanceOffset[axis]; |
| 2232 |
|
| 2233 |
} |
| 2234 |
}, |
| 2235 |
|
| 2236 |
panAnimLoop: function() { |
| 2237 |
if ( _animations.zoomPan ) { |
| 2238 |
_animations.zoomPan.raf = _requestAF(s.panAnimLoop); |
| 2239 |
|
| 2240 |
s.now = _getCurrentTime(); |
| 2241 |
s.timeDiff = s.now - s.lastNow; |
| 2242 |
s.lastNow = s.now; |
| 2243 |
|
| 2244 |
s.calculateAnimOffset('x'); |
| 2245 |
s.calculateAnimOffset('y'); |
| 2246 |
|
| 2247 |
_applyCurrentZoomPan(); |
| 2248 |
|
| 2249 |
s.calculateOverBoundsAnimOffset('x'); |
| 2250 |
s.calculateOverBoundsAnimOffset('y'); |
| 2251 |
|
| 2252 |
|
| 2253 |
if (s.speedDecelerationRatioAbs.x < 0.05 && s.speedDecelerationRatioAbs.y < 0.05) { |
| 2254 |
|
| 2255 |
// round pan position |
| 2256 |
_panOffset.x = Math.round(_panOffset.x); |
| 2257 |
_panOffset.y = Math.round(_panOffset.y); |
| 2258 |
_applyCurrentZoomPan(); |
| 2259 |
|
| 2260 |
_stopAnimation('zoomPan'); |
| 2261 |
return; |
| 2262 |
} |
| 2263 |
} |
| 2264 |
|
| 2265 |
} |
| 2266 |
}; |
| 2267 |
return s; |
| 2268 |
}, |
| 2269 |
|
| 2270 |
_completePanGesture = function(animData) { |
| 2271 |
// calculate swipe speed for Y axis (paanning) |
| 2272 |
animData.calculateSwipeSpeed('y'); |
| 2273 |
|
| 2274 |
_currPanBounds = self.currItem.bounds; |
| 2275 |
|
| 2276 |
animData.backAnimDestination = {}; |
| 2277 |
animData.backAnimStarted = {}; |
| 2278 |
|
| 2279 |
// Avoid acceleration animation if speed is too low |
| 2280 |
if(Math.abs(animData.lastFlickSpeed.x) <= 0.05 && Math.abs(animData.lastFlickSpeed.y) <= 0.05 ) { |
| 2281 |
animData.speedDecelerationRatioAbs.x = animData.speedDecelerationRatioAbs.y = 0; |
| 2282 |
|
| 2283 |
// Run pan drag release animation. E.g. if you drag image and release finger without momentum. |
| 2284 |
animData.calculateOverBoundsAnimOffset('x'); |
| 2285 |
animData.calculateOverBoundsAnimOffset('y'); |
| 2286 |
return true; |
| 2287 |
} |
| 2288 |
|
| 2289 |
// Animation loop that controls the acceleration after pan gesture ends |
| 2290 |
_registerStartAnimation('zoomPan'); |
| 2291 |
animData.lastNow = _getCurrentTime(); |
| 2292 |
animData.panAnimLoop(); |
| 2293 |
}, |
| 2294 |
|
| 2295 |
|
| 2296 |
_finishSwipeMainScrollGesture = function(gestureType, _releaseAnimData) { |
| 2297 |
var itemChanged; |
| 2298 |
if(!_mainScrollAnimating) { |
| 2299 |
_currZoomedItemIndex = _currentItemIndex; |
| 2300 |
} |
| 2301 |
|
| 2302 |
|
| 2303 |
|
| 2304 |
var itemsDiff; |
| 2305 |
|
| 2306 |
if(gestureType === 'swipe') { |
| 2307 |
var totalShiftDist = _currPoint.x - _startPoint.x, |
| 2308 |
isFastLastFlick = _releaseAnimData.lastFlickDist.x < 10; |
| 2309 |
|
| 2310 |
// if container is shifted for more than MIN_SWIPE_DISTANCE, |
| 2311 |
// and last flick gesture was in right direction |
| 2312 |
if(totalShiftDist > MIN_SWIPE_DISTANCE && |
| 2313 |
(isFastLastFlick || _releaseAnimData.lastFlickOffset.x > 20) ) { |
| 2314 |
// go to prev item |
| 2315 |
itemsDiff = -1; |
| 2316 |
} else if(totalShiftDist < -MIN_SWIPE_DISTANCE && |
| 2317 |
(isFastLastFlick || _releaseAnimData.lastFlickOffset.x < -20) ) { |
| 2318 |
// go to next item |
| 2319 |
itemsDiff = 1; |
| 2320 |
} |
| 2321 |
} |
| 2322 |
|
| 2323 |
var nextCircle; |
| 2324 |
|
| 2325 |
if(itemsDiff) { |
| 2326 |
|
| 2327 |
_currentItemIndex += itemsDiff; |
| 2328 |
|
| 2329 |
if(_currentItemIndex < 0) { |
| 2330 |
_currentItemIndex = _options.loop ? _getNumItems()-1 : 0; |
| 2331 |
nextCircle = true; |
| 2332 |
} else if(_currentItemIndex >= _getNumItems()) { |
| 2333 |
_currentItemIndex = _options.loop ? 0 : _getNumItems()-1; |
| 2334 |
nextCircle = true; |
| 2335 |
} |
| 2336 |
|
| 2337 |
if(!nextCircle || _options.loop) { |
| 2338 |
_indexDiff += itemsDiff; |
| 2339 |
_currPositionIndex -= itemsDiff; |
| 2340 |
itemChanged = true; |
| 2341 |
} |
| 2342 |
|
| 2343 |
|
| 2344 |
|
| 2345 |
} |
| 2346 |
|
| 2347 |
var animateToX = _slideSize.x * _currPositionIndex; |
| 2348 |
var animateToDist = Math.abs( animateToX - _mainScrollPos.x ); |
| 2349 |
var finishAnimDuration; |
| 2350 |
|
| 2351 |
|
| 2352 |
if(!itemChanged && animateToX > _mainScrollPos.x !== _releaseAnimData.lastFlickSpeed.x > 0) { |
| 2353 |
// "return to current" duration, e.g. when dragging from slide 0 to -1 |
| 2354 |
finishAnimDuration = 333; |
| 2355 |
} else { |
| 2356 |
finishAnimDuration = Math.abs(_releaseAnimData.lastFlickSpeed.x) > 0 ? |
| 2357 |
animateToDist / Math.abs(_releaseAnimData.lastFlickSpeed.x) : |
| 2358 |
333; |
| 2359 |
|
| 2360 |
finishAnimDuration = Math.min(finishAnimDuration, 400); |
| 2361 |
finishAnimDuration = Math.max(finishAnimDuration, 250); |
| 2362 |
} |
| 2363 |
|
| 2364 |
if(_currZoomedItemIndex === _currentItemIndex) { |
| 2365 |
itemChanged = false; |
| 2366 |
} |
| 2367 |
|
| 2368 |
_mainScrollAnimating = true; |
| 2369 |
|
| 2370 |
_shout('mainScrollAnimStart'); |
| 2371 |
|
| 2372 |
_animateProp('mainScroll', _mainScrollPos.x, animateToX, finishAnimDuration, framework.easing.cubic.out, |
| 2373 |
_moveMainScroll, |
| 2374 |
function() { |
| 2375 |
_stopAllAnimations(); |
| 2376 |
_mainScrollAnimating = false; |
| 2377 |
_currZoomedItemIndex = -1; |
| 2378 |
|
| 2379 |
if(itemChanged || _currZoomedItemIndex !== _currentItemIndex) { |
| 2380 |
self.updateCurrItem(); |
| 2381 |
} |
| 2382 |
|
| 2383 |
_shout('mainScrollAnimComplete'); |
| 2384 |
} |
| 2385 |
); |
| 2386 |
|
| 2387 |
if(itemChanged) { |
| 2388 |
self.updateCurrItem(true); |
| 2389 |
} |
| 2390 |
|
| 2391 |
return itemChanged; |
| 2392 |
}, |
| 2393 |
|
| 2394 |
_calculateZoomLevel = function(touchesDistance) { |
| 2395 |
return 1 / _startPointsDistance * touchesDistance * _startZoomLevel; |
| 2396 |
}, |
| 2397 |
|
| 2398 |
// Resets zoom if it's out of bounds |
| 2399 |
_completeZoomGesture = function() { |
| 2400 |
var destZoomLevel = _currZoomLevel, |
| 2401 |
minZoomLevel = _getMinZoomLevel(), |
| 2402 |
maxZoomLevel = _getMaxZoomLevel(); |
| 2403 |
|
| 2404 |
if ( _currZoomLevel < minZoomLevel ) { |
| 2405 |
destZoomLevel = minZoomLevel; |
| 2406 |
} else if ( _currZoomLevel > maxZoomLevel ) { |
| 2407 |
destZoomLevel = maxZoomLevel; |
| 2408 |
} |
| 2409 |
|
| 2410 |
var destOpacity = 1, |
| 2411 |
onUpdate, |
| 2412 |
initialOpacity = _bgOpacity; |
| 2413 |
|
| 2414 |
if(_opacityChanged && !_isZoomingIn && !_wasOverInitialZoom && _currZoomLevel < minZoomLevel) { |
| 2415 |
//_closedByScroll = true; |
| 2416 |
self.close(); |
| 2417 |
return true; |
| 2418 |
} |
| 2419 |
|
| 2420 |
if(_opacityChanged) { |
| 2421 |
onUpdate = function(now) { |
| 2422 |
_applyBgOpacity( (destOpacity - initialOpacity) * now + initialOpacity ); |
| 2423 |
}; |
| 2424 |
} |
| 2425 |
|
| 2426 |
self.zoomTo(destZoomLevel, 0, 200, framework.easing.cubic.out, onUpdate); |
| 2427 |
return true; |
| 2428 |
}; |
| 2429 |
|
| 2430 |
|
| 2431 |
_registerModule('Gestures', { |
| 2432 |
publicMethods: { |
| 2433 |
|
| 2434 |
initGestures: function() { |
| 2435 |
|
| 2436 |
// helper function that builds touch/pointer/mouse events |
| 2437 |
var addEventNames = function(pref, down, move, up, cancel) { |
| 2438 |
_dragStartEvent = pref + down; |
| 2439 |
_dragMoveEvent = pref + move; |
| 2440 |
_dragEndEvent = pref + up; |
| 2441 |
if(cancel) { |
| 2442 |
_dragCancelEvent = pref + cancel; |
| 2443 |
} else { |
| 2444 |
_dragCancelEvent = ''; |
| 2445 |
} |
| 2446 |
}; |
| 2447 |
|
| 2448 |
_pointerEventEnabled = _features.pointerEvent; |
| 2449 |
if(_pointerEventEnabled && _features.touch) { |
| 2450 |
// we don't need touch events, if browser supports pointer events |
| 2451 |
_features.touch = false; |
| 2452 |
} |
| 2453 |
|
| 2454 |
if(_pointerEventEnabled) { |
| 2455 |
if(navigator.msPointerEnabled) { |
| 2456 |
// IE10 pointer events are case-sensitive |
| 2457 |
addEventNames('MSPointer', 'Down', 'Move', 'Up', 'Cancel'); |
| 2458 |
} else { |
| 2459 |
addEventNames('pointer', 'down', 'move', 'up', 'cancel'); |
| 2460 |
} |
| 2461 |
} else if(_features.touch) { |
| 2462 |
addEventNames('touch', 'start', 'move', 'end', 'cancel'); |
| 2463 |
_likelyTouchDevice = true; |
| 2464 |
} else { |
| 2465 |
addEventNames('mouse', 'down', 'move', 'up'); |
| 2466 |
} |
| 2467 |
|
| 2468 |
_upMoveEvents = _dragMoveEvent + ' ' + _dragEndEvent + ' ' + _dragCancelEvent; |
| 2469 |
_downEvents = _dragStartEvent; |
| 2470 |
|
| 2471 |
if(_pointerEventEnabled && !_likelyTouchDevice) { |
| 2472 |
_likelyTouchDevice = (navigator.maxTouchPoints > 1) || (navigator.msMaxTouchPoints > 1); |
| 2473 |
} |
| 2474 |
// make variable public |
| 2475 |
self.likelyTouchDevice = _likelyTouchDevice; |
| 2476 |
|
| 2477 |
_globalEventHandlers[_dragStartEvent] = _onDragStart; |
| 2478 |
_globalEventHandlers[_dragMoveEvent] = _onDragMove; |
| 2479 |
_globalEventHandlers[_dragEndEvent] = _onDragRelease; // the Kraken |
| 2480 |
|
| 2481 |
if(_dragCancelEvent) { |
| 2482 |
_globalEventHandlers[_dragCancelEvent] = _globalEventHandlers[_dragEndEvent]; |
| 2483 |
} |
| 2484 |
|
| 2485 |
// Bind mouse events on device with detected hardware touch support, in case it supports multiple types of input. |
| 2486 |
if(_features.touch) { |
| 2487 |
_downEvents += ' mousedown'; |
| 2488 |
_upMoveEvents += ' mousemove mouseup'; |
| 2489 |
_globalEventHandlers.mousedown = _globalEventHandlers[_dragStartEvent]; |
| 2490 |
_globalEventHandlers.mousemove = _globalEventHandlers[_dragMoveEvent]; |
| 2491 |
_globalEventHandlers.mouseup = _globalEventHandlers[_dragEndEvent]; |
| 2492 |
} |
| 2493 |
|
| 2494 |
if(!_likelyTouchDevice) { |
| 2495 |
// don't allow pan to next slide from zoomed state on Desktop |
| 2496 |
_options.allowPanToNext = false; |
| 2497 |
} |
| 2498 |
} |
| 2499 |
|
| 2500 |
} |
| 2501 |
}); |
| 2502 |
|
| 2503 |
|
| 2504 |
/*>>gestures*/ |
| 2505 |
|
| 2506 |
/*>>show-hide-transition*/ |
| 2507 |
/** |
| 2508 |
* show-hide-transition.js: |
| 2509 |
* |
| 2510 |
* Manages initial opening or closing transition. |
| 2511 |
* |
| 2512 |
* If you're not planning to use transition for gallery at all, |
| 2513 |
* you may set options hideAnimationDuration and showAnimationDuration to 0, |
| 2514 |
* and just delete startAnimation function. |
| 2515 |
* |
| 2516 |
*/ |
| 2517 |
|
| 2518 |
|
| 2519 |
var _showOrHideTimeout, |
| 2520 |
_showOrHide = function(item, img, out, completeFn) { |
| 2521 |
|
| 2522 |
if(_showOrHideTimeout) { |
| 2523 |
clearTimeout(_showOrHideTimeout); |
| 2524 |
} |
| 2525 |
|
| 2526 |
_initialZoomRunning = true; |
| 2527 |
_initialContentSet = true; |
| 2528 |
|
| 2529 |
// dimensions of small thumbnail {x:,y:,w:}. |
| 2530 |
// Height is optional, as calculated based on large image. |
| 2531 |
var thumbBounds; |
| 2532 |
if(item.initialLayout) { |
| 2533 |
thumbBounds = item.initialLayout; |
| 2534 |
item.initialLayout = null; |
| 2535 |
} else { |
| 2536 |
thumbBounds = _options.getThumbBoundsFn && _options.getThumbBoundsFn(_currentItemIndex); |
| 2537 |
} |
| 2538 |
|
| 2539 |
var duration = out ? _options.hideAnimationDuration : _options.showAnimationDuration; |
| 2540 |
|
| 2541 |
var onComplete = function() { |
| 2542 |
_stopAnimation('initialZoom'); |
| 2543 |
if(!out) { |
| 2544 |
_applyBgOpacity(1); |
| 2545 |
if(img) { |
| 2546 |
img.style.display = 'block'; |
| 2547 |
} |
| 2548 |
framework.addClass(template, 'pswp--animated-in'); |
| 2549 |
_shout('initialZoom' + (out ? 'OutEnd' : 'InEnd')); |
| 2550 |
} else { |
| 2551 |
self.template.removeAttribute('style'); |
| 2552 |
self.bg.removeAttribute('style'); |
| 2553 |
} |
| 2554 |
|
| 2555 |
if(completeFn) { |
| 2556 |
completeFn(); |
| 2557 |
} |
| 2558 |
_initialZoomRunning = false; |
| 2559 |
}; |
| 2560 |
|
| 2561 |
// if bounds aren't provided, just open gallery without animation |
| 2562 |
if(!duration || !thumbBounds || thumbBounds.x === undefined) { |
| 2563 |
|
| 2564 |
_shout('initialZoom' + (out ? 'Out' : 'In') ); |
| 2565 |
|
| 2566 |
_currZoomLevel = item.initialZoomLevel; |
| 2567 |
_equalizePoints(_panOffset, item.initialPosition ); |
| 2568 |
_applyCurrentZoomPan(); |
| 2569 |
|
| 2570 |
template.style.opacity = out ? 0 : 1; |
| 2571 |
_applyBgOpacity(1); |
| 2572 |
|
| 2573 |
if(duration) { |
| 2574 |
setTimeout(function() { |
| 2575 |
onComplete(); |
| 2576 |
}, duration); |
| 2577 |
} else { |
| 2578 |
onComplete(); |
| 2579 |
} |
| 2580 |
|
| 2581 |
return; |
| 2582 |
} |
| 2583 |
|
| 2584 |
var startAnimation = function() { |
| 2585 |
var closeWithRaf = _closedByScroll, |
| 2586 |
fadeEverything = !self.currItem.src || self.currItem.loadError || _options.showHideOpacity; |
| 2587 |
|
| 2588 |
// apply hw-acceleration to image |
| 2589 |
if(item.miniImg) { |
| 2590 |
item.miniImg.style.webkitBackfaceVisibility = 'hidden'; |
| 2591 |
} |
| 2592 |
|
| 2593 |
if(!out) { |
| 2594 |
_currZoomLevel = thumbBounds.w / item.w; |
| 2595 |
_panOffset.x = thumbBounds.x; |
| 2596 |
_panOffset.y = thumbBounds.y - _initalWindowScrollY; |
| 2597 |
|
| 2598 |
self[fadeEverything ? 'template' : 'bg'].style.opacity = 0.001; |
| 2599 |
_applyCurrentZoomPan(); |
| 2600 |
} |
| 2601 |
|
| 2602 |
_registerStartAnimation('initialZoom'); |
| 2603 |
|
| 2604 |
if(out && !closeWithRaf) { |
| 2605 |
framework.removeClass(template, 'pswp--animated-in'); |
| 2606 |
} |
| 2607 |
|
| 2608 |
if(fadeEverything) { |
| 2609 |
if(out) { |
| 2610 |
framework[ (closeWithRaf ? 'remove' : 'add') + 'Class' ](template, 'pswp--animate_opacity'); |
| 2611 |
} else { |
| 2612 |
setTimeout(function() { |
| 2613 |
framework.addClass(template, 'pswp--animate_opacity'); |
| 2614 |
}, 30); |
| 2615 |
} |
| 2616 |
} |
| 2617 |
|
| 2618 |
_showOrHideTimeout = setTimeout(function() { |
| 2619 |
|
| 2620 |
_shout('initialZoom' + (out ? 'Out' : 'In') ); |
| 2621 |
|
| 2622 |
|
| 2623 |
if(!out) { |
| 2624 |
|
| 2625 |
// "in" animation always uses CSS transitions (instead of rAF). |
| 2626 |
// CSS transition work faster here, |
| 2627 |
// as developer may also want to animate other things, |
| 2628 |
// like ui on top of sliding area, which can be animated just via CSS |
| 2629 |
|
| 2630 |
_currZoomLevel = item.initialZoomLevel; |
| 2631 |
_equalizePoints(_panOffset, item.initialPosition ); |
| 2632 |
_applyCurrentZoomPan(); |
| 2633 |
_applyBgOpacity(1); |
| 2634 |
|
| 2635 |
if(fadeEverything) { |
| 2636 |
template.style.opacity = 1; |
| 2637 |
} else { |
| 2638 |
_applyBgOpacity(1); |
| 2639 |
} |
| 2640 |
|
| 2641 |
_showOrHideTimeout = setTimeout(onComplete, duration + 20); |
| 2642 |
} else { |
| 2643 |
|
| 2644 |
// "out" animation uses rAF only when PhotoSwipe is closed by browser scroll, to recalculate position |
| 2645 |
var destZoomLevel = thumbBounds.w / item.w, |
| 2646 |
initialPanOffset = { |
| 2647 |
x: _panOffset.x, |
| 2648 |
y: _panOffset.y |
| 2649 |
}, |
| 2650 |
initialZoomLevel = _currZoomLevel, |
| 2651 |
initalBgOpacity = _bgOpacity, |
| 2652 |
onUpdate = function(now) { |
| 2653 |
|
| 2654 |
if(now === 1) { |
| 2655 |
_currZoomLevel = destZoomLevel; |
| 2656 |
_panOffset.x = thumbBounds.x; |
| 2657 |
_panOffset.y = thumbBounds.y - _currentWindowScrollY; |
| 2658 |
} else { |
| 2659 |
_currZoomLevel = (destZoomLevel - initialZoomLevel) * now + initialZoomLevel; |
| 2660 |
_panOffset.x = (thumbBounds.x - initialPanOffset.x) * now + initialPanOffset.x; |
| 2661 |
_panOffset.y = (thumbBounds.y - _currentWindowScrollY - initialPanOffset.y) * now + initialPanOffset.y; |
| 2662 |
} |
| 2663 |
|
| 2664 |
_applyCurrentZoomPan(); |
| 2665 |
if(fadeEverything) { |
| 2666 |
template.style.opacity = 1 - now; |
| 2667 |
} else { |
| 2668 |
_applyBgOpacity( initalBgOpacity - now * initalBgOpacity ); |
| 2669 |
} |
| 2670 |
}; |
| 2671 |
|
| 2672 |
if(closeWithRaf) { |
| 2673 |
_animateProp('initialZoom', 0, 1, duration, framework.easing.cubic.out, onUpdate, onComplete); |
| 2674 |
} else { |
| 2675 |
onUpdate(1); |
| 2676 |
_showOrHideTimeout = setTimeout(onComplete, duration + 20); |
| 2677 |
} |
| 2678 |
} |
| 2679 |
|
| 2680 |
}, out ? 25 : 90); // Main purpose of this delay is to give browser time to paint and |
| 2681 |
// create composite layers of PhotoSwipe UI parts (background, controls, caption, arrows). |
| 2682 |
// Which avoids lag at the beginning of scale transition. |
| 2683 |
}; |
| 2684 |
startAnimation(); |
| 2685 |
|
| 2686 |
|
| 2687 |
}; |
| 2688 |
|
| 2689 |
/*>>show-hide-transition*/ |
| 2690 |
|
| 2691 |
/*>>items-controller*/ |
| 2692 |
/** |
| 2693 |
* |
| 2694 |
* Controller manages gallery items, their dimensions, and their content. |
| 2695 |
* |
| 2696 |
*/ |
| 2697 |
|
| 2698 |
var _items, |
| 2699 |
_tempPanAreaSize = {}, |
| 2700 |
_imagesToAppendPool = [], |
| 2701 |
_initialContentSet, |
| 2702 |
_initialZoomRunning, |
| 2703 |
_controllerDefaultOptions = { |
| 2704 |
index: 0, |
| 2705 |
errorMsg: '<div class="pswp__error-msg"><a href="%url%" target="_blank">The image</a> could not be loaded.</div>', |
| 2706 |
forceProgressiveLoading: false, // TODO |
| 2707 |
preload: [1,1], |
| 2708 |
getNumItemsFn: function() { |
| 2709 |
return _items.length; |
| 2710 |
} |
| 2711 |
}; |
| 2712 |
|
| 2713 |
|
| 2714 |
var _getItemAt, |
| 2715 |
_getNumItems, |
| 2716 |
_initialIsLoop, |
| 2717 |
_getZeroBounds = function() { |
| 2718 |
return { |
| 2719 |
center:{x:0,y:0}, |
| 2720 |
max:{x:0,y:0}, |
| 2721 |
min:{x:0,y:0} |
| 2722 |
}; |
| 2723 |
}, |
| 2724 |
_calculateSingleItemPanBounds = function(item, realPanElementW, realPanElementH ) { |
| 2725 |
var bounds = item.bounds; |
| 2726 |
|
| 2727 |
// position of element when it's centered |
| 2728 |
bounds.center.x = Math.round((_tempPanAreaSize.x - realPanElementW) / 2); |
| 2729 |
bounds.center.y = Math.round((_tempPanAreaSize.y - realPanElementH) / 2) + item.vGap.top; |
| 2730 |
|
| 2731 |
// maximum pan position |
| 2732 |
bounds.max.x = (realPanElementW > _tempPanAreaSize.x) ? |
| 2733 |
Math.round(_tempPanAreaSize.x - realPanElementW) : |
| 2734 |
bounds.center.x; |
| 2735 |
|
| 2736 |
bounds.max.y = (realPanElementH > _tempPanAreaSize.y) ? |
| 2737 |
Math.round(_tempPanAreaSize.y - realPanElementH) + item.vGap.top : |
| 2738 |
bounds.center.y; |
| 2739 |
|
| 2740 |
// minimum pan position |
| 2741 |
bounds.min.x = (realPanElementW > _tempPanAreaSize.x) ? 0 : bounds.center.x; |
| 2742 |
bounds.min.y = (realPanElementH > _tempPanAreaSize.y) ? item.vGap.top : bounds.center.y; |
| 2743 |
}, |
| 2744 |
_calculateItemSize = function(item, viewportSize, zoomLevel) { |
| 2745 |
|
| 2746 |
if (item.src && !item.loadError) { |
| 2747 |
var isInitial = !zoomLevel; |
| 2748 |
|
| 2749 |
if(isInitial) { |
| 2750 |
if(!item.vGap) { |
| 2751 |
item.vGap = {top:0,bottom:0}; |
| 2752 |
} |
| 2753 |
// allows overriding vertical margin for individual items |
| 2754 |
_shout('parseVerticalMargin', item); |
| 2755 |
} |
| 2756 |
|
| 2757 |
|
| 2758 |
_tempPanAreaSize.x = viewportSize.x; |
| 2759 |
_tempPanAreaSize.y = viewportSize.y - item.vGap.top - item.vGap.bottom; |
| 2760 |
|
| 2761 |
if (isInitial) { |
| 2762 |
var hRatio = _tempPanAreaSize.x / item.w; |
| 2763 |
var vRatio = _tempPanAreaSize.y / item.h; |
| 2764 |
|
| 2765 |
item.fitRatio = hRatio < vRatio ? hRatio : vRatio; |
| 2766 |
//item.fillRatio = hRatio > vRatio ? hRatio : vRatio; |
| 2767 |
|
| 2768 |
var scaleMode = _options.scaleMode; |
| 2769 |
|
| 2770 |
if (scaleMode === 'orig') { |
| 2771 |
zoomLevel = 1; |
| 2772 |
} else if (scaleMode === 'fit') { |
| 2773 |
zoomLevel = item.fitRatio; |
| 2774 |
} |
| 2775 |
|
| 2776 |
if (zoomLevel > 1) { |
| 2777 |
zoomLevel = 1; |
| 2778 |
} |
| 2779 |
|
| 2780 |
item.initialZoomLevel = zoomLevel; |
| 2781 |
|
| 2782 |
if(!item.bounds) { |
| 2783 |
// reuse bounds object |
| 2784 |
item.bounds = _getZeroBounds(); |
| 2785 |
} |
| 2786 |
} |
| 2787 |
|
| 2788 |
if(!zoomLevel) { |
| 2789 |
return; |
| 2790 |
} |
| 2791 |
|
| 2792 |
_calculateSingleItemPanBounds(item, item.w * zoomLevel, item.h * zoomLevel); |
| 2793 |
|
| 2794 |
if (isInitial && zoomLevel === item.initialZoomLevel) { |
| 2795 |
item.initialPosition = item.bounds.center; |
| 2796 |
} |
| 2797 |
|
| 2798 |
return item.bounds; |
| 2799 |
} else { |
| 2800 |
item.w = item.h = 0; |
| 2801 |
item.initialZoomLevel = item.fitRatio = 1; |
| 2802 |
item.bounds = _getZeroBounds(); |
| 2803 |
item.initialPosition = item.bounds.center; |
| 2804 |
|
| 2805 |
// if it's not image, we return zero bounds (content is not zoomable) |
| 2806 |
return item.bounds; |
| 2807 |
} |
| 2808 |
|
| 2809 |
}, |
| 2810 |
|
| 2811 |
|
| 2812 |
|
| 2813 |
|
| 2814 |
_appendImage = function(index, item, baseDiv, img, preventAnimation, keepPlaceholder) { |
| 2815 |
|
| 2816 |
|
| 2817 |
if(item.loadError) { |
| 2818 |
return; |
| 2819 |
} |
| 2820 |
|
| 2821 |
if(img) { |
| 2822 |
|
| 2823 |
item.imageAppended = true; |
| 2824 |
_setImageSize(item, img, (item === self.currItem && _renderMaxResolution) ); |
| 2825 |
|
| 2826 |
baseDiv.appendChild(img); |
| 2827 |
|
| 2828 |
if(keepPlaceholder) { |
| 2829 |
setTimeout(function() { |
| 2830 |
if(item && item.loaded && item.placeholder) { |
| 2831 |
item.placeholder.style.display = 'none'; |
| 2832 |
item.placeholder = null; |
| 2833 |
} |
| 2834 |
}, 500); |
| 2835 |
} |
| 2836 |
} |
| 2837 |
}, |
| 2838 |
|
| 2839 |
|
| 2840 |
|
| 2841 |
_preloadImage = function(item) { |
| 2842 |
item.loading = true; |
| 2843 |
item.loaded = false; |
| 2844 |
var img = item.img = framework.createEl('pswp__img', 'img'); |
| 2845 |
var onComplete = function() { |
| 2846 |
item.loading = false; |
| 2847 |
item.loaded = true; |
| 2848 |
|
| 2849 |
if(item.loadComplete) { |
| 2850 |
item.loadComplete(item); |
| 2851 |
} else { |
| 2852 |
item.img = null; // no need to store image object |
| 2853 |
} |
| 2854 |
img.onload = img.onerror = null; |
| 2855 |
img = null; |
| 2856 |
}; |
| 2857 |
img.onload = onComplete; |
| 2858 |
img.onerror = function() { |
| 2859 |
item.loadError = true; |
| 2860 |
onComplete(); |
| 2861 |
}; |
| 2862 |
|
| 2863 |
img.src = item.src;// + '?a=' + Math.random(); |
| 2864 |
|
| 2865 |
return img; |
| 2866 |
}, |
| 2867 |
_checkForError = function(item, cleanUp) { |
| 2868 |
if(item.src && item.loadError && item.container) { |
| 2869 |
|
| 2870 |
if(cleanUp) { |
| 2871 |
item.container.innerHTML = ''; |
| 2872 |
} |
| 2873 |
|
| 2874 |
item.container.innerHTML = _options.errorMsg.replace('%url%', item.src ); |
| 2875 |
return true; |
| 2876 |
|
| 2877 |
} |
| 2878 |
}, |
| 2879 |
_setImageSize = function(item, img, maxRes) { |
| 2880 |
if(!item.src) { |
| 2881 |
return; |
| 2882 |
} |
| 2883 |
|
| 2884 |
if(!img) { |
| 2885 |
img = item.container.lastChild; |
| 2886 |
} |
| 2887 |
|
| 2888 |
var w = maxRes ? item.w : Math.round(item.w * item.fitRatio), |
| 2889 |
h = maxRes ? item.h : Math.round(item.h * item.fitRatio); |
| 2890 |
|
| 2891 |
if(item.placeholder && !item.loaded) { |
| 2892 |
item.placeholder.style.width = w + 'px'; |
| 2893 |
item.placeholder.style.height = h + 'px'; |
| 2894 |
} |
| 2895 |
|
| 2896 |
img.style.width = w + 'px'; |
| 2897 |
img.style.height = h + 'px'; |
| 2898 |
}, |
| 2899 |
_appendImagesPool = function() { |
| 2900 |
|
| 2901 |
if(_imagesToAppendPool.length) { |
| 2902 |
var poolItem; |
| 2903 |
|
| 2904 |
for(var i = 0; i < _imagesToAppendPool.length; i++) { |
| 2905 |
poolItem = _imagesToAppendPool[i]; |
| 2906 |
if( poolItem.holder.index === poolItem.index ) { |
| 2907 |
_appendImage(poolItem.index, poolItem.item, poolItem.baseDiv, poolItem.img, false, poolItem.clearPlaceholder); |
| 2908 |
} |
| 2909 |
} |
| 2910 |
_imagesToAppendPool = []; |
| 2911 |
} |
| 2912 |
}; |
| 2913 |
|
| 2914 |
|
| 2915 |
|
| 2916 |
_registerModule('Controller', { |
| 2917 |
|
| 2918 |
publicMethods: { |
| 2919 |
|
| 2920 |
lazyLoadItem: function(index) { |
| 2921 |
index = _getLoopedId(index); |
| 2922 |
var item = _getItemAt(index); |
| 2923 |
|
| 2924 |
if(!item || ((item.loaded || item.loading) && !_itemsNeedUpdate)) { |
| 2925 |
return; |
| 2926 |
} |
| 2927 |
|
| 2928 |
_shout('gettingData', index, item); |
| 2929 |
|
| 2930 |
if (!item.src) { |
| 2931 |
return; |
| 2932 |
} |
| 2933 |
|
| 2934 |
_preloadImage(item); |
| 2935 |
}, |
| 2936 |
initController: function() { |
| 2937 |
framework.extend(_options, _controllerDefaultOptions, true); |
| 2938 |
self.items = _items = items; |
| 2939 |
_getItemAt = self.getItemAt; |
| 2940 |
_getNumItems = _options.getNumItemsFn; //self.getNumItems; |
| 2941 |
|
| 2942 |
|
| 2943 |
|
| 2944 |
_initialIsLoop = _options.loop; |
| 2945 |
if(_getNumItems() < 3) { |
| 2946 |
_options.loop = false; // disable loop if less then 3 items |
| 2947 |
} |
| 2948 |
|
| 2949 |
_listen('beforeChange', function(diff) { |
| 2950 |
|
| 2951 |
var p = _options.preload, |
| 2952 |
isNext = diff === null ? true : (diff >= 0), |
| 2953 |
preloadBefore = Math.min(p[0], _getNumItems() ), |
| 2954 |
preloadAfter = Math.min(p[1], _getNumItems() ), |
| 2955 |
i; |
| 2956 |
|
| 2957 |
|
| 2958 |
for(i = 1; i <= (isNext ? preloadAfter : preloadBefore); i++) { |
| 2959 |
self.lazyLoadItem(_currentItemIndex+i); |
| 2960 |
} |
| 2961 |
for(i = 1; i <= (isNext ? preloadBefore : preloadAfter); i++) { |
| 2962 |
self.lazyLoadItem(_currentItemIndex-i); |
| 2963 |
} |
| 2964 |
}); |
| 2965 |
|
| 2966 |
_listen('initialLayout', function() { |
| 2967 |
self.currItem.initialLayout = _options.getThumbBoundsFn && _options.getThumbBoundsFn(_currentItemIndex); |
| 2968 |
}); |
| 2969 |
|
| 2970 |
_listen('mainScrollAnimComplete', _appendImagesPool); |
| 2971 |
_listen('initialZoomInEnd', _appendImagesPool); |
| 2972 |
|
| 2973 |
|
| 2974 |
|
| 2975 |
_listen('destroy', function() { |
| 2976 |
var item; |
| 2977 |
for(var i = 0; i < _items.length; i++) { |
| 2978 |
item = _items[i]; |
| 2979 |
// remove reference to DOM elements, for GC |
| 2980 |
if(item.container) { |
| 2981 |
item.container = null; |
| 2982 |
} |
| 2983 |
if(item.placeholder) { |
| 2984 |
item.placeholder = null; |
| 2985 |
} |
| 2986 |
if(item.img) { |
| 2987 |
item.img = null; |
| 2988 |
} |
| 2989 |
if(item.preloader) { |
| 2990 |
item.preloader = null; |
| 2991 |
} |
| 2992 |
if(item.loadError) { |
| 2993 |
item.loaded = item.loadError = false; |
| 2994 |
} |
| 2995 |
} |
| 2996 |
_imagesToAppendPool = null; |
| 2997 |
}); |
| 2998 |
}, |
| 2999 |
|
| 3000 |
|
| 3001 |
getItemAt: function(index) { |
| 3002 |
if (index >= 0) { |
| 3003 |
return _items[index] !== undefined ? _items[index] : false; |
| 3004 |
} |
| 3005 |
return false; |
| 3006 |
}, |
| 3007 |
|
| 3008 |
allowProgressiveImg: function() { |
| 3009 |
// 1. Progressive image loading isn't working on webkit/blink |
| 3010 |
// when hw-acceleration (e.g. translateZ) is applied to IMG element. |
| 3011 |
// That's why in PhotoSwipe parent element gets zoom transform, not image itself. |
| 3012 |
// |
| 3013 |
// 2. Progressive image loading sometimes blinks in webkit/blink when applying animation to parent element. |
| 3014 |
// That's why it's disabled on touch devices (mainly because of swipe transition) |
| 3015 |
// |
| 3016 |
// 3. Progressive image loading sometimes doesn't work in IE (up to 11). |
| 3017 |
|
| 3018 |
// Don't allow progressive loading on non-large touch devices |
| 3019 |
return _options.forceProgressiveLoading || !_likelyTouchDevice || _options.mouseUsed || screen.width > 1200; |
| 3020 |
// 1200 - to eliminate touch devices with large screen (like Chromebook Pixel) |
| 3021 |
}, |
| 3022 |
|
| 3023 |
setContent: function(holder, index) { |
| 3024 |
|
| 3025 |
if(_options.loop) { |
| 3026 |
index = _getLoopedId(index); |
| 3027 |
} |
| 3028 |
|
| 3029 |
var prevItem = self.getItemAt(holder.index); |
| 3030 |
if(prevItem) { |
| 3031 |
prevItem.container = null; |
| 3032 |
} |
| 3033 |
|
| 3034 |
var item = self.getItemAt(index), |
| 3035 |
img; |
| 3036 |
|
| 3037 |
if(!item) { |
| 3038 |
holder.el.innerHTML = ''; |
| 3039 |
return; |
| 3040 |
} |
| 3041 |
|
| 3042 |
// allow to override data |
| 3043 |
_shout('gettingData', index, item); |
| 3044 |
|
| 3045 |
holder.index = index; |
| 3046 |
holder.item = item; |
| 3047 |
|
| 3048 |
// base container DIV is created only once for each of 3 holders |
| 3049 |
var baseDiv = item.container = framework.createEl('pswp__zoom-wrap'); |
| 3050 |
|
| 3051 |
|
| 3052 |
|
| 3053 |
if(!item.src && item.html) { |
| 3054 |
if(item.html.tagName) { |
| 3055 |
baseDiv.appendChild(item.html); |
| 3056 |
} else { |
| 3057 |
baseDiv.innerHTML = item.html; |
| 3058 |
} |
| 3059 |
} |
| 3060 |
|
| 3061 |
_checkForError(item); |
| 3062 |
|
| 3063 |
_calculateItemSize(item, _viewportSize); |
| 3064 |
|
| 3065 |
if(item.src && !item.loadError && !item.loaded) { |
| 3066 |
|
| 3067 |
item.loadComplete = function(item) { |
| 3068 |
|
| 3069 |
// gallery closed before image finished loading |
| 3070 |
if(!_isOpen) { |
| 3071 |
return; |
| 3072 |
} |
| 3073 |
|
| 3074 |
// check if holder hasn't changed while image was loading |
| 3075 |
if(holder && holder.index === index ) { |
| 3076 |
if( _checkForError(item, true) ) { |
| 3077 |
item.loadComplete = item.img = null; |
| 3078 |
_calculateItemSize(item, _viewportSize); |
| 3079 |
_applyZoomPanToItem(item); |
| 3080 |
|
| 3081 |
if(holder.index === _currentItemIndex) { |
| 3082 |
// recalculate dimensions |
| 3083 |
self.updateCurrZoomItem(); |
| 3084 |
} |
| 3085 |
return; |
| 3086 |
} |
| 3087 |
if( !item.imageAppended ) { |
| 3088 |
if(_features.transform && (_mainScrollAnimating || _initialZoomRunning) ) { |
| 3089 |
_imagesToAppendPool.push({ |
| 3090 |
item:item, |
| 3091 |
baseDiv:baseDiv, |
| 3092 |
img:item.img, |
| 3093 |
index:index, |
| 3094 |
holder:holder, |
| 3095 |
clearPlaceholder:true |
| 3096 |
}); |
| 3097 |
} else { |
| 3098 |
_appendImage(index, item, baseDiv, item.img, _mainScrollAnimating || _initialZoomRunning, true); |
| 3099 |
} |
| 3100 |
} else { |
| 3101 |
// remove preloader & mini-img |
| 3102 |
if(!_initialZoomRunning && item.placeholder) { |
| 3103 |
item.placeholder.style.display = 'none'; |
| 3104 |
item.placeholder = null; |
| 3105 |
} |
| 3106 |
} |
| 3107 |
} |
| 3108 |
|
| 3109 |
item.loadComplete = null; |
| 3110 |
item.img = null; // no need to store image element after it's added |
| 3111 |
|
| 3112 |
_shout('imageLoadComplete', index, item); |
| 3113 |
}; |
| 3114 |
|
| 3115 |
if(framework.features.transform) { |
| 3116 |
|
| 3117 |
var placeholderClassName = 'pswp__img pswp__img--placeholder'; |
| 3118 |
placeholderClassName += (item.msrc ? '' : ' pswp__img--placeholder--blank'); |
| 3119 |
|
| 3120 |
var placeholder = framework.createEl(placeholderClassName, item.msrc ? 'img' : ''); |
| 3121 |
if(item.msrc) { |
| 3122 |
placeholder.src = item.msrc; |
| 3123 |
} |
| 3124 |
|
| 3125 |
_setImageSize(item, placeholder); |
| 3126 |
|
| 3127 |
baseDiv.appendChild(placeholder); |
| 3128 |
item.placeholder = placeholder; |
| 3129 |
|
| 3130 |
} |
| 3131 |
|
| 3132 |
|
| 3133 |
|
| 3134 |
|
| 3135 |
if(!item.loading) { |
| 3136 |
_preloadImage(item); |
| 3137 |
} |
| 3138 |
|
| 3139 |
|
| 3140 |
if( self.allowProgressiveImg() ) { |
| 3141 |
// just append image |
| 3142 |
if(!_initialContentSet && _features.transform) { |
| 3143 |
_imagesToAppendPool.push({ |
| 3144 |
item:item, |
| 3145 |
baseDiv:baseDiv, |
| 3146 |
img:item.img, |
| 3147 |
index:index, |
| 3148 |
holder:holder |
| 3149 |
}); |
| 3150 |
} else { |
| 3151 |
_appendImage(index, item, baseDiv, item.img, true, true); |
| 3152 |
} |
| 3153 |
} |
| 3154 |
|
| 3155 |
} else if(item.src && !item.loadError) { |
| 3156 |
// image object is created every time, due to bugs of image loading & delay when switching images |
| 3157 |
img = framework.createEl('pswp__img', 'img'); |
| 3158 |
img.style.opacity = 1; |
| 3159 |
img.src = item.src; |
| 3160 |
_setImageSize(item, img); |
| 3161 |
_appendImage(index, item, baseDiv, img, true); |
| 3162 |
} |
| 3163 |
|
| 3164 |
|
| 3165 |
if(!_initialContentSet && index === _currentItemIndex) { |
| 3166 |
_currZoomElementStyle = baseDiv.style; |
| 3167 |
_showOrHide(item, (img ||item.img) ); |
| 3168 |
} else { |
| 3169 |
_applyZoomPanToItem(item); |
| 3170 |
} |
| 3171 |
|
| 3172 |
holder.el.innerHTML = ''; |
| 3173 |
holder.el.appendChild(baseDiv); |
| 3174 |
}, |
| 3175 |
|
| 3176 |
cleanSlide: function( item ) { |
| 3177 |
if(item.img ) { |
| 3178 |
item.img.onload = item.img.onerror = null; |
| 3179 |
} |
| 3180 |
item.loaded = item.loading = item.img = item.imageAppended = false; |
| 3181 |
} |
| 3182 |
|
| 3183 |
} |
| 3184 |
}); |
| 3185 |
|
| 3186 |
/*>>items-controller*/ |
| 3187 |
|
| 3188 |
/*>>tap*/ |
| 3189 |
/** |
| 3190 |
* tap.js: |
| 3191 |
* |
| 3192 |
* Displatches tap and double-tap events. |
| 3193 |
* |
| 3194 |
*/ |
| 3195 |
|
| 3196 |
var tapTimer, |
| 3197 |
tapReleasePoint = {}, |
| 3198 |
_dispatchTapEvent = function(origEvent, releasePoint, pointerType) { |
| 3199 |
var e = document.createEvent( 'CustomEvent' ), |
| 3200 |
eDetail = { |
| 3201 |
origEvent:origEvent, |
| 3202 |
target:origEvent.target, |
| 3203 |
releasePoint: releasePoint, |
| 3204 |
pointerType:pointerType || 'touch' |
| 3205 |
}; |
| 3206 |
|
| 3207 |
e.initCustomEvent( 'pswpTap', true, true, eDetail ); |
| 3208 |
origEvent.target.dispatchEvent(e); |
| 3209 |
}; |
| 3210 |
|
| 3211 |
_registerModule('Tap', { |
| 3212 |
publicMethods: { |
| 3213 |
initTap: function() { |
| 3214 |
_listen('firstTouchStart', self.onTapStart); |
| 3215 |
_listen('touchRelease', self.onTapRelease); |
| 3216 |
_listen('destroy', function() { |
| 3217 |
tapReleasePoint = {}; |
| 3218 |
tapTimer = null; |
| 3219 |
}); |
| 3220 |
}, |
| 3221 |
onTapStart: function(touchList) { |
| 3222 |
if(touchList.length > 1) { |
| 3223 |
clearTimeout(tapTimer); |
| 3224 |
tapTimer = null; |
| 3225 |
} |
| 3226 |
}, |
| 3227 |
onTapRelease: function(e, releasePoint) { |
| 3228 |
if(!releasePoint) { |
| 3229 |
return; |
| 3230 |
} |
| 3231 |
|
| 3232 |
if(!_moved && !_isMultitouch && !_numAnimations) { |
| 3233 |
var p0 = releasePoint; |
| 3234 |
if(tapTimer) { |
| 3235 |
clearTimeout(tapTimer); |
| 3236 |
tapTimer = null; |
| 3237 |
|
| 3238 |
// Check if taped on the same place |
| 3239 |
if ( _isNearbyPoints(p0, tapReleasePoint) ) { |
| 3240 |
_shout('doubleTap', p0); |
| 3241 |
return; |
| 3242 |
} |
| 3243 |
} |
| 3244 |
|
| 3245 |
if(releasePoint.type === 'mouse') { |
| 3246 |
_dispatchTapEvent(e, releasePoint, 'mouse'); |
| 3247 |
return; |
| 3248 |
} |
| 3249 |
|
| 3250 |
var clickedTagName = e.target.tagName.toUpperCase(); |
| 3251 |
// avoid double tap delay on buttons and elements that have class pswp__single-tap |
| 3252 |
if(clickedTagName === 'BUTTON' || framework.hasClass(e.target, 'pswp__single-tap') ) { |
| 3253 |
_dispatchTapEvent(e, releasePoint); |
| 3254 |
return; |
| 3255 |
} |
| 3256 |
|
| 3257 |
_equalizePoints(tapReleasePoint, p0); |
| 3258 |
|
| 3259 |
tapTimer = setTimeout(function() { |
| 3260 |
_dispatchTapEvent(e, releasePoint); |
| 3261 |
tapTimer = null; |
| 3262 |
}, 300); |
| 3263 |
} |
| 3264 |
} |
| 3265 |
} |
| 3266 |
}); |
| 3267 |
|
| 3268 |
/*>>tap*/ |
| 3269 |
|
| 3270 |
/*>>desktop-zoom*/ |
| 3271 |
/** |
| 3272 |
* |
| 3273 |
* desktop-zoom.js: |
| 3274 |
* |
| 3275 |
* - Binds mousewheel event for paning zoomed image. |
| 3276 |
* - Manages "dragging", "zoomed-in", "zoom-out" classes. |
| 3277 |
* (which are used for cursors and zoom icon) |
| 3278 |
* - Adds toggleDesktopZoom function. |
| 3279 |
* |
| 3280 |
*/ |
| 3281 |
|
| 3282 |
var _wheelDelta; |
| 3283 |
|
| 3284 |
_registerModule('DesktopZoom', { |
| 3285 |
|
| 3286 |
publicMethods: { |
| 3287 |
|
| 3288 |
initDesktopZoom: function() { |
| 3289 |
|
| 3290 |
if(_oldIE) { |
| 3291 |
// no zoom for old IE (<=8) |
| 3292 |
return; |
| 3293 |
} |
| 3294 |
|
| 3295 |
if(_likelyTouchDevice) { |
| 3296 |
// if detected hardware touch support, we wait until mouse is used, |
| 3297 |
// and only then apply desktop-zoom features |
| 3298 |
_listen('mouseUsed', function() { |
| 3299 |
self.setupDesktopZoom(); |
| 3300 |
}); |
| 3301 |
} else { |
| 3302 |
self.setupDesktopZoom(true); |
| 3303 |
} |
| 3304 |
|
| 3305 |
}, |
| 3306 |
|
| 3307 |
setupDesktopZoom: function(onInit) { |
| 3308 |
|
| 3309 |
_wheelDelta = {}; |
| 3310 |
|
| 3311 |
var events = 'wheel mousewheel DOMMouseScroll'; |
| 3312 |
|
| 3313 |
_listen('bindEvents', function() { |
| 3314 |
framework.bind(template, events, self.handleMouseWheel); |
| 3315 |
}); |
| 3316 |
|
| 3317 |
_listen('unbindEvents', function() { |
| 3318 |
if(_wheelDelta) { |
| 3319 |
framework.unbind(template, events, self.handleMouseWheel); |
| 3320 |
} |
| 3321 |
}); |
| 3322 |
|
| 3323 |
self.mouseZoomedIn = false; |
| 3324 |
|
| 3325 |
var hasDraggingClass, |
| 3326 |
updateZoomable = function() { |
| 3327 |
if(self.mouseZoomedIn) { |
| 3328 |
framework.removeClass(template, 'pswp--zoomed-in'); |
| 3329 |
self.mouseZoomedIn = false; |
| 3330 |
} |
| 3331 |
if(_currZoomLevel < 1) { |
| 3332 |
framework.addClass(template, 'pswp--zoom-allowed'); |
| 3333 |
} else { |
| 3334 |
framework.removeClass(template, 'pswp--zoom-allowed'); |
| 3335 |
} |
| 3336 |
removeDraggingClass(); |
| 3337 |
}, |
| 3338 |
removeDraggingClass = function() { |
| 3339 |
if(hasDraggingClass) { |
| 3340 |
framework.removeClass(template, 'pswp--dragging'); |
| 3341 |
hasDraggingClass = false; |
| 3342 |
} |
| 3343 |
}; |
| 3344 |
|
| 3345 |
_listen('resize' , updateZoomable); |
| 3346 |
_listen('afterChange' , updateZoomable); |
| 3347 |
_listen('pointerDown', function() { |
| 3348 |
if(self.mouseZoomedIn) { |
| 3349 |
hasDraggingClass = true; |
| 3350 |
framework.addClass(template, 'pswp--dragging'); |
| 3351 |
} |
| 3352 |
}); |
| 3353 |
_listen('pointerUp', removeDraggingClass); |
| 3354 |
|
| 3355 |
if(!onInit) { |
| 3356 |
updateZoomable(); |
| 3357 |
} |
| 3358 |
|
| 3359 |
}, |
| 3360 |
|
| 3361 |
handleMouseWheel: function(e) { |
| 3362 |
|
| 3363 |
if(_currZoomLevel <= self.currItem.fitRatio) { |
| 3364 |
if( _options.modal ) { |
| 3365 |
|
| 3366 |
if (!_options.closeOnScroll || _numAnimations || _isDragging) { |
| 3367 |
e.preventDefault(); |
| 3368 |
} else if(_transformKey && Math.abs(e.deltaY) > 2) { |
| 3369 |
// close PhotoSwipe |
| 3370 |
// if browser supports transforms & scroll changed enough |
| 3371 |
_closedByScroll = true; |
| 3372 |
self.close(); |
| 3373 |
} |
| 3374 |
|
| 3375 |
} |
| 3376 |
return true; |
| 3377 |
} |
| 3378 |
|
| 3379 |
// allow just one event to fire |
| 3380 |
e.stopPropagation(); |
| 3381 |
|
| 3382 |
// https://developer.mozilla.org/en-US/docs/Web/Events/wheel |
| 3383 |
_wheelDelta.x = 0; |
| 3384 |
|
| 3385 |
if('deltaX' in e) { |
| 3386 |
if(e.deltaMode === 1 /* DOM_DELTA_LINE */) { |
| 3387 |
// 18 - average line height |
| 3388 |
_wheelDelta.x = e.deltaX * 18; |
| 3389 |
_wheelDelta.y = e.deltaY * 18; |
| 3390 |
} else { |
| 3391 |
_wheelDelta.x = e.deltaX; |
| 3392 |
_wheelDelta.y = e.deltaY; |
| 3393 |
} |
| 3394 |
} else if('wheelDelta' in e) { |
| 3395 |
if(e.wheelDeltaX) { |
| 3396 |
_wheelDelta.x = -0.16 * e.wheelDeltaX; |
| 3397 |
} |
| 3398 |
if(e.wheelDeltaY) { |
| 3399 |
_wheelDelta.y = -0.16 * e.wheelDeltaY; |
| 3400 |
} else { |
| 3401 |
_wheelDelta.y = -0.16 * e.wheelDelta; |
| 3402 |
} |
| 3403 |
} else if('detail' in e) { |
| 3404 |
_wheelDelta.y = e.detail; |
| 3405 |
} else { |
| 3406 |
return; |
| 3407 |
} |
| 3408 |
|
| 3409 |
_calculatePanBounds(_currZoomLevel, true); |
| 3410 |
|
| 3411 |
var newPanX = _panOffset.x - _wheelDelta.x, |
| 3412 |
newPanY = _panOffset.y - _wheelDelta.y; |
| 3413 |
|
| 3414 |
// only prevent scrolling in nonmodal mode when not at edges |
| 3415 |
if (_options.modal || |
| 3416 |
( |
| 3417 |
newPanX <= _currPanBounds.min.x && newPanX >= _currPanBounds.max.x && |
| 3418 |
newPanY <= _currPanBounds.min.y && newPanY >= _currPanBounds.max.y |
| 3419 |
) ) { |
| 3420 |
e.preventDefault(); |
| 3421 |
} |
| 3422 |
|
| 3423 |
// TODO: use rAF instead of mousewheel? |
| 3424 |
self.panTo(newPanX, newPanY); |
| 3425 |
}, |
| 3426 |
|
| 3427 |
toggleDesktopZoom: function(centerPoint) { |
| 3428 |
centerPoint = centerPoint || {x:_viewportSize.x/2 + _offset.x, y:_viewportSize.y/2 + _offset.y }; |
| 3429 |
|
| 3430 |
var doubleTapZoomLevel = _options.getDoubleTapZoom(true, self.currItem); |
| 3431 |
var zoomOut = _currZoomLevel === doubleTapZoomLevel; |
| 3432 |
|
| 3433 |
self.mouseZoomedIn = !zoomOut; |
| 3434 |
|
| 3435 |
self.zoomTo(zoomOut ? self.currItem.initialZoomLevel : doubleTapZoomLevel, centerPoint, 333); |
| 3436 |
framework[ (!zoomOut ? 'add' : 'remove') + 'Class'](template, 'pswp--zoomed-in'); |
| 3437 |
} |
| 3438 |
|
| 3439 |
} |
| 3440 |
}); |
| 3441 |
|
| 3442 |
|
| 3443 |
/*>>desktop-zoom*/ |
| 3444 |
|
| 3445 |
/*>>history*/ |
| 3446 |
/** |
| 3447 |
* |
| 3448 |
* history.js: |
| 3449 |
* |
| 3450 |
* - Back button to close gallery. |
| 3451 |
* |
| 3452 |
* - Unique URL for each slide: example.com/&pid=1&gid=3 |
| 3453 |
* (where PID is picture index, and GID and gallery index) |
| 3454 |
* |
| 3455 |
* - Switch URL when slides change. |
| 3456 |
* |
| 3457 |
*/ |
| 3458 |
|
| 3459 |
|
| 3460 |
var _historyDefaultOptions = { |
| 3461 |
history: true, |
| 3462 |
galleryUID: 1 |
| 3463 |
}; |
| 3464 |
|
| 3465 |
var _historyUpdateTimeout, |
| 3466 |
_hashChangeTimeout, |
| 3467 |
_hashAnimCheckTimeout, |
| 3468 |
_hashChangedByScript, |
| 3469 |
_hashChangedByHistory, |
| 3470 |
_hashReseted, |
| 3471 |
_initialHash, |
| 3472 |
_historyChanged, |
| 3473 |
_closedFromURL, |
| 3474 |
_urlChangedOnce, |
| 3475 |
_windowLoc, |
| 3476 |
|
| 3477 |
_supportsPushState, |
| 3478 |
|
| 3479 |
_getHash = function() { |
| 3480 |
return _windowLoc.hash.substring(1); |
| 3481 |
}, |
| 3482 |
_cleanHistoryTimeouts = function() { |
| 3483 |
|
| 3484 |
if(_historyUpdateTimeout) { |
| 3485 |
clearTimeout(_historyUpdateTimeout); |
| 3486 |
} |
| 3487 |
|
| 3488 |
if(_hashAnimCheckTimeout) { |
| 3489 |
clearTimeout(_hashAnimCheckTimeout); |
| 3490 |
} |
| 3491 |
}, |
| 3492 |
|
| 3493 |
// pid - Picture index |
| 3494 |
// gid - Gallery index |
| 3495 |
_parseItemIndexFromURL = function() { |
| 3496 |
var hash = _getHash(), |
| 3497 |
params = {}; |
| 3498 |
|
| 3499 |
if(hash.length < 5) { // pid=1 |
| 3500 |
return params; |
| 3501 |
} |
| 3502 |
|
| 3503 |
var i, vars = hash.split('&'); |
| 3504 |
for (i = 0; i < vars.length; i++) { |
| 3505 |
if(!vars[i]) { |
| 3506 |
continue; |
| 3507 |
} |
| 3508 |
var pair = vars[i].split('='); |
| 3509 |
if(pair.length < 2) { |
| 3510 |
continue; |
| 3511 |
} |
| 3512 |
params[pair[0]] = pair[1]; |
| 3513 |
} |
| 3514 |
if(_options.galleryPIDs) { |
| 3515 |
// detect custom pid in hash and search for it among the items collection |
| 3516 |
var searchfor = params.pid; |
| 3517 |
params.pid = 0; // if custom pid cannot be found, fallback to the first item |
| 3518 |
for(i = 0; i < _items.length; i++) { |
| 3519 |
if(_items[i].pid === searchfor) { |
| 3520 |
params.pid = i; |
| 3521 |
break; |
| 3522 |
} |
| 3523 |
} |
| 3524 |
} else { |
| 3525 |
params.pid = parseInt(params.pid,10)-1; |
| 3526 |
} |
| 3527 |
if( params.pid < 0 ) { |
| 3528 |
params.pid = 0; |
| 3529 |
} |
| 3530 |
return params; |
| 3531 |
}, |
| 3532 |
_updateHash = function() { |
| 3533 |
|
| 3534 |
if(_hashAnimCheckTimeout) { |
| 3535 |
clearTimeout(_hashAnimCheckTimeout); |
| 3536 |
} |
| 3537 |
|
| 3538 |
|
| 3539 |
if(_numAnimations || _isDragging) { |
| 3540 |
// changing browser URL forces layout/paint in some browsers, which causes noticable lag during animation |
| 3541 |
// that's why we update hash only when no animations running |
| 3542 |
_hashAnimCheckTimeout = setTimeout(_updateHash, 500); |
| 3543 |
return; |
| 3544 |
} |
| 3545 |
|
| 3546 |
if(_hashChangedByScript) { |
| 3547 |
clearTimeout(_hashChangeTimeout); |
| 3548 |
} else { |
| 3549 |
_hashChangedByScript = true; |
| 3550 |
} |
| 3551 |
|
| 3552 |
|
| 3553 |
var pid = (_currentItemIndex + 1); |
| 3554 |
var item = _getItemAt( _currentItemIndex ); |
| 3555 |
if(item.hasOwnProperty('pid')) { |
| 3556 |
// carry forward any custom pid assigned to the item |
| 3557 |
pid = item.pid; |
| 3558 |
} |
| 3559 |
var newHash = _initialHash + '&' + 'gid=' + _options.galleryUID + '&' + 'pid=' + pid; |
| 3560 |
|
| 3561 |
if(!_historyChanged) { |
| 3562 |
if(_windowLoc.hash.indexOf(newHash) === -1) { |
| 3563 |
_urlChangedOnce = true; |
| 3564 |
} |
| 3565 |
// first time - add new hisory record, then just replace |
| 3566 |
} |
| 3567 |
|
| 3568 |
var newURL = _windowLoc.href.split('#')[0] + '#' + newHash; |
| 3569 |
|
| 3570 |
if( _supportsPushState ) { |
| 3571 |
|
| 3572 |
if('#' + newHash !== window.location.hash) { |
| 3573 |
history[_historyChanged ? 'replaceState' : 'pushState']('', document.title, newURL); |
| 3574 |
} |
| 3575 |
|
| 3576 |
} else { |
| 3577 |
if(_historyChanged) { |
| 3578 |
_windowLoc.replace( newURL ); |
| 3579 |
} else { |
| 3580 |
_windowLoc.hash = newHash; |
| 3581 |
} |
| 3582 |
} |
| 3583 |
|
| 3584 |
|
| 3585 |
|
| 3586 |
_historyChanged = true; |
| 3587 |
_hashChangeTimeout = setTimeout(function() { |
| 3588 |
_hashChangedByScript = false; |
| 3589 |
}, 60); |
| 3590 |
}; |
| 3591 |
|
| 3592 |
|
| 3593 |
|
| 3594 |
|
| 3595 |
|
| 3596 |
_registerModule('History', { |
| 3597 |
|
| 3598 |
|
| 3599 |
|
| 3600 |
publicMethods: { |
| 3601 |
initHistory: function() { |
| 3602 |
|
| 3603 |
framework.extend(_options, _historyDefaultOptions, true); |
| 3604 |
|
| 3605 |
if( !_options.history ) { |
| 3606 |
return; |
| 3607 |
} |
| 3608 |
|
| 3609 |
|
| 3610 |
_windowLoc = window.location; |
| 3611 |
_urlChangedOnce = false; |
| 3612 |
_closedFromURL = false; |
| 3613 |
_historyChanged = false; |
| 3614 |
_initialHash = _getHash(); |
| 3615 |
_supportsPushState = ('pushState' in history); |
| 3616 |
|
| 3617 |
|
| 3618 |
if(_initialHash.indexOf('gid=') > -1) { |
| 3619 |
_initialHash = _initialHash.split('&gid=')[0]; |
| 3620 |
_initialHash = _initialHash.split('?gid=')[0]; |
| 3621 |
} |
| 3622 |
|
| 3623 |
|
| 3624 |
_listen('afterChange', self.updateURL); |
| 3625 |
_listen('unbindEvents', function() { |
| 3626 |
framework.unbind(window, 'hashchange', self.onHashChange); |
| 3627 |
}); |
| 3628 |
|
| 3629 |
|
| 3630 |
var returnToOriginal = function() { |
| 3631 |
_hashReseted = true; |
| 3632 |
if(!_closedFromURL) { |
| 3633 |
|
| 3634 |
if(_urlChangedOnce) { |
| 3635 |
history.back(); |
| 3636 |
} else { |
| 3637 |
|
| 3638 |
if(_initialHash) { |
| 3639 |
_windowLoc.hash = _initialHash; |
| 3640 |
} else { |
| 3641 |
if (_supportsPushState) { |
| 3642 |
|
| 3643 |
// remove hash from url without refreshing it or scrolling to top |
| 3644 |
history.pushState('', document.title, _windowLoc.pathname + _windowLoc.search ); |
| 3645 |
} else { |
| 3646 |
_windowLoc.hash = ''; |
| 3647 |
} |
| 3648 |
} |
| 3649 |
} |
| 3650 |
|
| 3651 |
} |
| 3652 |
|
| 3653 |
_cleanHistoryTimeouts(); |
| 3654 |
}; |
| 3655 |
|
| 3656 |
|
| 3657 |
_listen('unbindEvents', function() { |
| 3658 |
if(_closedByScroll) { |
| 3659 |
// if PhotoSwipe is closed by scroll, we go "back" before the closing animation starts |
| 3660 |
// this is done to keep the scroll position |
| 3661 |
returnToOriginal(); |
| 3662 |
} |
| 3663 |
}); |
| 3664 |
_listen('destroy', function() { |
| 3665 |
if(!_hashReseted) { |
| 3666 |
returnToOriginal(); |
| 3667 |
} |
| 3668 |
}); |
| 3669 |
_listen('firstUpdate', function() { |
| 3670 |
_currentItemIndex = _parseItemIndexFromURL().pid; |
| 3671 |
}); |
| 3672 |
|
| 3673 |
|
| 3674 |
|
| 3675 |
|
| 3676 |
var index = _initialHash.indexOf('pid='); |
| 3677 |
if(index > -1) { |
| 3678 |
_initialHash = _initialHash.substring(0, index); |
| 3679 |
if(_initialHash.slice(-1) === '&') { |
| 3680 |
_initialHash = _initialHash.slice(0, -1); |
| 3681 |
} |
| 3682 |
} |
| 3683 |
|
| 3684 |
|
| 3685 |
setTimeout(function() { |
| 3686 |
if(_isOpen) { // hasn't destroyed yet |
| 3687 |
framework.bind(window, 'hashchange', self.onHashChange); |
| 3688 |
} |
| 3689 |
}, 40); |
| 3690 |
|
| 3691 |
}, |
| 3692 |
onHashChange: function() { |
| 3693 |
|
| 3694 |
if(_getHash() === _initialHash) { |
| 3695 |
|
| 3696 |
_closedFromURL = true; |
| 3697 |
self.close(); |
| 3698 |
return; |
| 3699 |
} |
| 3700 |
if(!_hashChangedByScript) { |
| 3701 |
|
| 3702 |
_hashChangedByHistory = true; |
| 3703 |
self.goTo( _parseItemIndexFromURL().pid ); |
| 3704 |
_hashChangedByHistory = false; |
| 3705 |
} |
| 3706 |
|
| 3707 |
}, |
| 3708 |
updateURL: function() { |
| 3709 |
|
| 3710 |
// Delay the update of URL, to avoid lag during transition, |
| 3711 |
// and to not to trigger actions like "refresh page sound" or "blinking favicon" to often |
| 3712 |
|
| 3713 |
_cleanHistoryTimeouts(); |
| 3714 |
|
| 3715 |
|
| 3716 |
if(_hashChangedByHistory) { |
| 3717 |
return; |
| 3718 |
} |
| 3719 |
|
| 3720 |
if(!_historyChanged) { |
| 3721 |
_updateHash(); // first time |
| 3722 |
} else { |
| 3723 |
_historyUpdateTimeout = setTimeout(_updateHash, 800); |
| 3724 |
} |
| 3725 |
} |
| 3726 |
|
| 3727 |
} |
| 3728 |
}); |
| 3729 |
|
| 3730 |
|
| 3731 |
/*>>history*/ |
| 3732 |
framework.extend(self, publicMethods); }; |
| 3733 |
return PhotoSwipe; |
| 3734 |
}); |
| 3735 |
|
| 3736 |
/*! PhotoSwipe Default UI - 4.1.3 - 2019-01-08 |
| 3737 |
* http://photoswipe.com |
| 3738 |
* Copyright (c) 2019 Dmitry Semenov; */ |
| 3739 |
/** |
| 3740 |
* |
| 3741 |
* UI on top of main sliding area (caption, arrows, close button, etc.). |
| 3742 |
* Built just using public methods/properties of PhotoSwipe. |
| 3743 |
* |
| 3744 |
*/ |
| 3745 |
(function (root, factory) { |
| 3746 |
if (typeof define === 'function' && define.amd) { |
| 3747 |
define(factory); |
| 3748 |
} else if (typeof exports === 'object') { |
| 3749 |
module.exports = factory(); |
| 3750 |
} else { |
| 3751 |
root.PhotoSwipeUI_Default = factory(); |
| 3752 |
} |
| 3753 |
})(this, function () { |
| 3754 |
|
| 3755 |
'use strict'; |
| 3756 |
|
| 3757 |
|
| 3758 |
|
| 3759 |
var PhotoSwipeUI_Default = |
| 3760 |
function(pswp, framework) { |
| 3761 |
|
| 3762 |
var ui = this; |
| 3763 |
var _overlayUIUpdated = false, |
| 3764 |
_controlsVisible = true, |
| 3765 |
_fullscrenAPI, |
| 3766 |
_controls, |
| 3767 |
_captionContainer, |
| 3768 |
_fakeCaptionContainer, |
| 3769 |
_indexIndicator, |
| 3770 |
_shareButton, |
| 3771 |
_shareModal, |
| 3772 |
_shareModalHidden = true, |
| 3773 |
_initalCloseOnScrollValue, |
| 3774 |
_isIdle, |
| 3775 |
_listen, |
| 3776 |
|
| 3777 |
_loadingIndicator, |
| 3778 |
_loadingIndicatorHidden, |
| 3779 |
_loadingIndicatorTimeout, |
| 3780 |
|
| 3781 |
_galleryHasOneSlide, |
| 3782 |
|
| 3783 |
_options, |
| 3784 |
_defaultUIOptions = { |
| 3785 |
barsSize: {top:44, bottom:'auto'}, |
| 3786 |
closeElClasses: ['item', 'caption', 'zoom-wrap', 'ui', 'top-bar'], |
| 3787 |
timeToIdle: 4000, |
| 3788 |
timeToIdleOutside: 1000, |
| 3789 |
loadingIndicatorDelay: 1000, // 2s |
| 3790 |
|
| 3791 |
addCaptionHTMLFn: function(item, captionEl /*, isFake */) { |
| 3792 |
if(!item.title) { |
| 3793 |
captionEl.children[0].innerHTML = ''; |
| 3794 |
return false; |
| 3795 |
} |
| 3796 |
captionEl.children[0].innerHTML = item.title; |
| 3797 |
return true; |
| 3798 |
}, |
| 3799 |
|
| 3800 |
closeEl:true, |
| 3801 |
captionEl: true, |
| 3802 |
fullscreenEl: true, |
| 3803 |
zoomEl: true, |
| 3804 |
shareEl: true, |
| 3805 |
counterEl: true, |
| 3806 |
arrowEl: true, |
| 3807 |
preloaderEl: true, |
| 3808 |
|
| 3809 |
tapToClose: false, |
| 3810 |
tapToToggleControls: true, |
| 3811 |
|
| 3812 |
clickToCloseNonZoomable: true, |
| 3813 |
|
| 3814 |
shareButtons: [ |
| 3815 |
{id:'facebook', label:'Share on Facebook', url:'https://www.facebook.com/sharer/sharer.php?u={{url}}'}, |
| 3816 |
{id:'twitter', label:'Tweet', url:'https://twitter.com/intent/tweet?text={{text}}&url={{url}}'}, |
| 3817 |
{id:'pinterest', label:'Pin it', url:'http://www.pinterest.com/pin/create/button/'+ |
| 3818 |
'?url={{url}}&media={{image_url}}&description={{text}}'}, |
| 3819 |
{id:'download', label:'Download image', url:'{{raw_image_url}}', download:true} |
| 3820 |
], |
| 3821 |
getImageURLForShare: function( /* shareButtonData */ ) { |
| 3822 |
return pswp.currItem.src || ''; |
| 3823 |
}, |
| 3824 |
getPageURLForShare: function( /* shareButtonData */ ) { |
| 3825 |
return window.location.href; |
| 3826 |
}, |
| 3827 |
getTextForShare: function( /* shareButtonData */ ) { |
| 3828 |
return pswp.currItem.title || ''; |
| 3829 |
}, |
| 3830 |
|
| 3831 |
indexIndicatorSep: ' / ', |
| 3832 |
fitControlsWidth: 1200 |
| 3833 |
|
| 3834 |
}, |
| 3835 |
_blockControlsTap, |
| 3836 |
_blockControlsTapTimeout; |
| 3837 |
|
| 3838 |
|
| 3839 |
|
| 3840 |
var _onControlsTap = function(e) { |
| 3841 |
if(_blockControlsTap) { |
| 3842 |
return true; |
| 3843 |
} |
| 3844 |
|
| 3845 |
|
| 3846 |
e = e || window.event; |
| 3847 |
|
| 3848 |
if(_options.timeToIdle && _options.mouseUsed && !_isIdle) { |
| 3849 |
// reset idle timer |
| 3850 |
_onIdleMouseMove(); |
| 3851 |
} |
| 3852 |
|
| 3853 |
|
| 3854 |
var target = e.target || e.srcElement, |
| 3855 |
uiElement, |
| 3856 |
clickedClass = target.getAttribute('class') || '', |
| 3857 |
found; |
| 3858 |
|
| 3859 |
for(var i = 0; i < _uiElements.length; i++) { |
| 3860 |
uiElement = _uiElements[i]; |
| 3861 |
if(uiElement.onTap && clickedClass.indexOf('pswp__' + uiElement.name ) > -1 ) { |
| 3862 |
uiElement.onTap(); |
| 3863 |
found = true; |
| 3864 |
|
| 3865 |
} |
| 3866 |
} |
| 3867 |
|
| 3868 |
if(found) { |
| 3869 |
if(e.stopPropagation) { |
| 3870 |
e.stopPropagation(); |
| 3871 |
} |
| 3872 |
_blockControlsTap = true; |
| 3873 |
|
| 3874 |
// Some versions of Android don't prevent ghost click event |
| 3875 |
// when preventDefault() was called on touchstart and/or touchend. |
| 3876 |
// |
| 3877 |
// This happens on v4.3, 4.2, 4.1, |
| 3878 |
// older versions strangely work correctly, |
| 3879 |
// but just in case we add delay on all of them) |
| 3880 |
var tapDelay = framework.features.isOldAndroid ? 600 : 30; |
| 3881 |
_blockControlsTapTimeout = setTimeout(function() { |
| 3882 |
_blockControlsTap = false; |
| 3883 |
}, tapDelay); |
| 3884 |
} |
| 3885 |
|
| 3886 |
}, |
| 3887 |
_fitControlsInViewport = function() { |
| 3888 |
return !pswp.likelyTouchDevice || _options.mouseUsed || screen.width > _options.fitControlsWidth; |
| 3889 |
}, |
| 3890 |
_togglePswpClass = function(el, cName, add) { |
| 3891 |
framework[ (add ? 'add' : 'remove') + 'Class' ](el, 'pswp__' + cName); |
| 3892 |
}, |
| 3893 |
|
| 3894 |
// add class when there is just one item in the gallery |
| 3895 |
// (by default it hides left/right arrows and 1ofX counter) |
| 3896 |
_countNumItems = function() { |
| 3897 |
var hasOneSlide = (_options.getNumItemsFn() === 1); |
| 3898 |
|
| 3899 |
if(hasOneSlide !== _galleryHasOneSlide) { |
| 3900 |
_togglePswpClass(_controls, 'ui--one-slide', hasOneSlide); |
| 3901 |
_galleryHasOneSlide = hasOneSlide; |
| 3902 |
} |
| 3903 |
}, |
| 3904 |
_toggleShareModalClass = function() { |
| 3905 |
_togglePswpClass(_shareModal, 'share-modal--hidden', _shareModalHidden); |
| 3906 |
}, |
| 3907 |
_toggleShareModal = function() { |
| 3908 |
|
| 3909 |
_shareModalHidden = !_shareModalHidden; |
| 3910 |
|
| 3911 |
|
| 3912 |
if(!_shareModalHidden) { |
| 3913 |
_toggleShareModalClass(); |
| 3914 |
setTimeout(function() { |
| 3915 |
if(!_shareModalHidden) { |
| 3916 |
framework.addClass(_shareModal, 'pswp__share-modal--fade-in'); |
| 3917 |
} |
| 3918 |
}, 30); |
| 3919 |
} else { |
| 3920 |
framework.removeClass(_shareModal, 'pswp__share-modal--fade-in'); |
| 3921 |
setTimeout(function() { |
| 3922 |
if(_shareModalHidden) { |
| 3923 |
_toggleShareModalClass(); |
| 3924 |
} |
| 3925 |
}, 300); |
| 3926 |
} |
| 3927 |
|
| 3928 |
if(!_shareModalHidden) { |
| 3929 |
_updateShareURLs(); |
| 3930 |
} |
| 3931 |
return false; |
| 3932 |
}, |
| 3933 |
|
| 3934 |
_openWindowPopup = function(e) { |
| 3935 |
e = e || window.event; |
| 3936 |
var target = e.target || e.srcElement; |
| 3937 |
|
| 3938 |
pswp.shout('shareLinkClick', e, target); |
| 3939 |
|
| 3940 |
if(!target.href) { |
| 3941 |
return false; |
| 3942 |
} |
| 3943 |
|
| 3944 |
if( target.hasAttribute('download') ) { |
| 3945 |
return true; |
| 3946 |
} |
| 3947 |
|
| 3948 |
window.open(target.href, 'pswp_share', 'scrollbars=yes,resizable=yes,toolbar=no,'+ |
| 3949 |
'location=yes,width=550,height=420,top=100,left=' + |
| 3950 |
(window.screen ? Math.round(screen.width / 2 - 275) : 100) ); |
| 3951 |
|
| 3952 |
if(!_shareModalHidden) { |
| 3953 |
_toggleShareModal(); |
| 3954 |
} |
| 3955 |
|
| 3956 |
return false; |
| 3957 |
}, |
| 3958 |
_updateShareURLs = function() { |
| 3959 |
var shareButtonOut = '', |
| 3960 |
shareButtonData, |
| 3961 |
shareURL, |
| 3962 |
image_url, |
| 3963 |
page_url, |
| 3964 |
share_text; |
| 3965 |
|
| 3966 |
for(var i = 0; i < _options.shareButtons.length; i++) { |
| 3967 |
shareButtonData = _options.shareButtons[i]; |
| 3968 |
|
| 3969 |
image_url = _options.getImageURLForShare(shareButtonData); |
| 3970 |
page_url = _options.getPageURLForShare(shareButtonData); |
| 3971 |
share_text = _options.getTextForShare(shareButtonData); |
| 3972 |
|
| 3973 |
shareURL = shareButtonData.url.replace('{{url}}', encodeURIComponent(page_url) ) |
| 3974 |
.replace('{{image_url}}', encodeURIComponent(image_url) ) |
| 3975 |
.replace('{{raw_image_url}}', image_url ) |
| 3976 |
.replace('{{text}}', encodeURIComponent(share_text) ); |
| 3977 |
|
| 3978 |
shareButtonOut += '<a href="' + shareURL + '" target="_blank" '+ |
| 3979 |
'class="pswp__share--' + shareButtonData.id + '"' + |
| 3980 |
(shareButtonData.download ? 'download' : '') + '>' + |
| 3981 |
shareButtonData.label + '</a>'; |
| 3982 |
|
| 3983 |
if(_options.parseShareButtonOut) { |
| 3984 |
shareButtonOut = _options.parseShareButtonOut(shareButtonData, shareButtonOut); |
| 3985 |
} |
| 3986 |
} |
| 3987 |
_shareModal.children[0].innerHTML = shareButtonOut; |
| 3988 |
_shareModal.children[0].onclick = _openWindowPopup; |
| 3989 |
|
| 3990 |
}, |
| 3991 |
_hasCloseClass = function(target) { |
| 3992 |
for(var i = 0; i < _options.closeElClasses.length; i++) { |
| 3993 |
if( framework.hasClass(target, 'pswp__' + _options.closeElClasses[i]) ) { |
| 3994 |
return true; |
| 3995 |
} |
| 3996 |
} |
| 3997 |
}, |
| 3998 |
_idleInterval, |
| 3999 |
_idleTimer, |
| 4000 |
_idleIncrement = 0, |
| 4001 |
_onIdleMouseMove = function() { |
| 4002 |
clearTimeout(_idleTimer); |
| 4003 |
_idleIncrement = 0; |
| 4004 |
if(_isIdle) { |
| 4005 |
ui.setIdle(false); |
| 4006 |
} |
| 4007 |
}, |
| 4008 |
_onMouseLeaveWindow = function(e) { |
| 4009 |
e = e ? e : window.event; |
| 4010 |
var from = e.relatedTarget || e.toElement; |
| 4011 |
if (!from || from.nodeName === 'HTML') { |
| 4012 |
clearTimeout(_idleTimer); |
| 4013 |
_idleTimer = setTimeout(function() { |
| 4014 |
ui.setIdle(true); |
| 4015 |
}, _options.timeToIdleOutside); |
| 4016 |
} |
| 4017 |
}, |
| 4018 |
_setupFullscreenAPI = function() { |
| 4019 |
if(_options.fullscreenEl && !framework.features.isOldAndroid) { |
| 4020 |
if(!_fullscrenAPI) { |
| 4021 |
_fullscrenAPI = ui.getFullscreenAPI(); |
| 4022 |
} |
| 4023 |
if(_fullscrenAPI) { |
| 4024 |
framework.bind(document, _fullscrenAPI.eventK, ui.updateFullscreen); |
| 4025 |
ui.updateFullscreen(); |
| 4026 |
framework.addClass(pswp.template, 'pswp--supports-fs'); |
| 4027 |
} else { |
| 4028 |
framework.removeClass(pswp.template, 'pswp--supports-fs'); |
| 4029 |
} |
| 4030 |
} |
| 4031 |
}, |
| 4032 |
_setupLoadingIndicator = function() { |
| 4033 |
// Setup loading indicator |
| 4034 |
if(_options.preloaderEl) { |
| 4035 |
|
| 4036 |
_toggleLoadingIndicator(true); |
| 4037 |
|
| 4038 |
_listen('beforeChange', function() { |
| 4039 |
|
| 4040 |
clearTimeout(_loadingIndicatorTimeout); |
| 4041 |
|
| 4042 |
// display loading indicator with delay |
| 4043 |
_loadingIndicatorTimeout = setTimeout(function() { |
| 4044 |
|
| 4045 |
if(pswp.currItem && pswp.currItem.loading) { |
| 4046 |
|
| 4047 |
if( !pswp.allowProgressiveImg() || (pswp.currItem.img && !pswp.currItem.img.naturalWidth) ) { |
| 4048 |
// show preloader if progressive loading is not enabled, |
| 4049 |
// or image width is not defined yet (because of slow connection) |
| 4050 |
_toggleLoadingIndicator(false); |
| 4051 |
// items-controller.js function allowProgressiveImg |
| 4052 |
} |
| 4053 |
|
| 4054 |
} else { |
| 4055 |
_toggleLoadingIndicator(true); // hide preloader |
| 4056 |
} |
| 4057 |
|
| 4058 |
}, _options.loadingIndicatorDelay); |
| 4059 |
|
| 4060 |
}); |
| 4061 |
_listen('imageLoadComplete', function(index, item) { |
| 4062 |
if(pswp.currItem === item) { |
| 4063 |
_toggleLoadingIndicator(true); |
| 4064 |
} |
| 4065 |
}); |
| 4066 |
|
| 4067 |
} |
| 4068 |
}, |
| 4069 |
_toggleLoadingIndicator = function(hide) { |
| 4070 |
if( _loadingIndicatorHidden !== hide ) { |
| 4071 |
_togglePswpClass(_loadingIndicator, 'preloader--active', !hide); |
| 4072 |
_loadingIndicatorHidden = hide; |
| 4073 |
} |
| 4074 |
}, |
| 4075 |
_applyNavBarGaps = function(item) { |
| 4076 |
var gap = item.vGap; |
| 4077 |
|
| 4078 |
if( _fitControlsInViewport() ) { |
| 4079 |
|
| 4080 |
var bars = _options.barsSize; |
| 4081 |
if(_options.captionEl && bars.bottom === 'auto') { |
| 4082 |
if(!_fakeCaptionContainer) { |
| 4083 |
_fakeCaptionContainer = framework.createEl('pswp__caption pswp__caption--fake'); |
| 4084 |
_fakeCaptionContainer.appendChild( framework.createEl('pswp__caption__center') ); |
| 4085 |
_controls.insertBefore(_fakeCaptionContainer, _captionContainer); |
| 4086 |
framework.addClass(_controls, 'pswp__ui--fit'); |
| 4087 |
} |
| 4088 |
if( _options.addCaptionHTMLFn(item, _fakeCaptionContainer, true) ) { |
| 4089 |
|
| 4090 |
var captionSize = _fakeCaptionContainer.clientHeight; |
| 4091 |
gap.bottom = parseInt(captionSize,10) || 44; |
| 4092 |
} else { |
| 4093 |
gap.bottom = bars.top; // if no caption, set size of bottom gap to size of top |
| 4094 |
} |
| 4095 |
} else { |
| 4096 |
gap.bottom = bars.bottom === 'auto' ? 0 : bars.bottom; |
| 4097 |
} |
| 4098 |
|
| 4099 |
// height of top bar is static, no need to calculate it |
| 4100 |
gap.top = bars.top; |
| 4101 |
} else { |
| 4102 |
gap.top = gap.bottom = 0; |
| 4103 |
} |
| 4104 |
}, |
| 4105 |
_setupIdle = function() { |
| 4106 |
// Hide controls when mouse is used |
| 4107 |
if(_options.timeToIdle) { |
| 4108 |
_listen('mouseUsed', function() { |
| 4109 |
|
| 4110 |
framework.bind(document, 'mousemove', _onIdleMouseMove); |
| 4111 |
framework.bind(document, 'mouseout', _onMouseLeaveWindow); |
| 4112 |
|
| 4113 |
_idleInterval = setInterval(function() { |
| 4114 |
_idleIncrement++; |
| 4115 |
if(_idleIncrement === 2) { |
| 4116 |
ui.setIdle(true); |
| 4117 |
} |
| 4118 |
}, _options.timeToIdle / 2); |
| 4119 |
}); |
| 4120 |
} |
| 4121 |
}, |
| 4122 |
_setupHidingControlsDuringGestures = function() { |
| 4123 |
|
| 4124 |
// Hide controls on vertical drag |
| 4125 |
_listen('onVerticalDrag', function(now) { |
| 4126 |
if(_controlsVisible && now < 0.95) { |
| 4127 |
ui.hideControls(); |
| 4128 |
} else if(!_controlsVisible && now >= 0.95) { |
| 4129 |
ui.showControls(); |
| 4130 |
} |
| 4131 |
}); |
| 4132 |
|
| 4133 |
// Hide controls when pinching to close |
| 4134 |
var pinchControlsHidden; |
| 4135 |
_listen('onPinchClose' , function(now) { |
| 4136 |
if(_controlsVisible && now < 0.9) { |
| 4137 |
ui.hideControls(); |
| 4138 |
pinchControlsHidden = true; |
| 4139 |
} else if(pinchControlsHidden && !_controlsVisible && now > 0.9) { |
| 4140 |
ui.showControls(); |
| 4141 |
} |
| 4142 |
}); |
| 4143 |
|
| 4144 |
_listen('zoomGestureEnded', function() { |
| 4145 |
pinchControlsHidden = false; |
| 4146 |
if(pinchControlsHidden && !_controlsVisible) { |
| 4147 |
ui.showControls(); |
| 4148 |
} |
| 4149 |
}); |
| 4150 |
|
| 4151 |
}; |
| 4152 |
|
| 4153 |
|
| 4154 |
|
| 4155 |
var _uiElements = [ |
| 4156 |
{ |
| 4157 |
name: 'caption', |
| 4158 |
option: 'captionEl', |
| 4159 |
onInit: function(el) { |
| 4160 |
_captionContainer = el; |
| 4161 |
} |
| 4162 |
}, |
| 4163 |
{ |
| 4164 |
name: 'share-modal', |
| 4165 |
option: 'shareEl', |
| 4166 |
onInit: function(el) { |
| 4167 |
_shareModal = el; |
| 4168 |
}, |
| 4169 |
onTap: function() { |
| 4170 |
_toggleShareModal(); |
| 4171 |
} |
| 4172 |
}, |
| 4173 |
{ |
| 4174 |
name: 'button--share', |
| 4175 |
option: 'shareEl', |
| 4176 |
onInit: function(el) { |
| 4177 |
_shareButton = el; |
| 4178 |
}, |
| 4179 |
onTap: function() { |
| 4180 |
_toggleShareModal(); |
| 4181 |
} |
| 4182 |
}, |
| 4183 |
{ |
| 4184 |
name: 'button--zoom', |
| 4185 |
option: 'zoomEl', |
| 4186 |
onTap: pswp.toggleDesktopZoom |
| 4187 |
}, |
| 4188 |
{ |
| 4189 |
name: 'counter', |
| 4190 |
option: 'counterEl', |
| 4191 |
onInit: function(el) { |
| 4192 |
_indexIndicator = el; |
| 4193 |
} |
| 4194 |
}, |
| 4195 |
{ |
| 4196 |
name: 'button--close', |
| 4197 |
option: 'closeEl', |
| 4198 |
onTap: pswp.close |
| 4199 |
}, |
| 4200 |
{ |
| 4201 |
name: 'button--arrow--left', |
| 4202 |
option: 'arrowEl', |
| 4203 |
onTap: pswp.prev |
| 4204 |
}, |
| 4205 |
{ |
| 4206 |
name: 'button--arrow--right', |
| 4207 |
option: 'arrowEl', |
| 4208 |
onTap: pswp.next |
| 4209 |
}, |
| 4210 |
{ |
| 4211 |
name: 'button--fs', |
| 4212 |
option: 'fullscreenEl', |
| 4213 |
onTap: function() { |
| 4214 |
if(_fullscrenAPI.isFullscreen()) { |
| 4215 |
_fullscrenAPI.exit(); |
| 4216 |
} else { |
| 4217 |
_fullscrenAPI.enter(); |
| 4218 |
} |
| 4219 |
} |
| 4220 |
}, |
| 4221 |
{ |
| 4222 |
name: 'preloader', |
| 4223 |
option: 'preloaderEl', |
| 4224 |
onInit: function(el) { |
| 4225 |
_loadingIndicator = el; |
| 4226 |
} |
| 4227 |
} |
| 4228 |
|
| 4229 |
]; |
| 4230 |
|
| 4231 |
var _setupUIElements = function() { |
| 4232 |
var item, |
| 4233 |
classAttr, |
| 4234 |
uiElement; |
| 4235 |
|
| 4236 |
var loopThroughChildElements = function(sChildren) { |
| 4237 |
if(!sChildren) { |
| 4238 |
return; |
| 4239 |
} |
| 4240 |
|
| 4241 |
var l = sChildren.length; |
| 4242 |
for(var i = 0; i < l; i++) { |
| 4243 |
item = sChildren[i]; |
| 4244 |
classAttr = item.className; |
| 4245 |
|
| 4246 |
for(var a = 0; a < _uiElements.length; a++) { |
| 4247 |
uiElement = _uiElements[a]; |
| 4248 |
|
| 4249 |
if(classAttr.indexOf('pswp__' + uiElement.name) > -1 ) { |
| 4250 |
|
| 4251 |
if( _options[uiElement.option] ) { // if element is not disabled from options |
| 4252 |
|
| 4253 |
framework.removeClass(item, 'pswp__element--disabled'); |
| 4254 |
if(uiElement.onInit) { |
| 4255 |
uiElement.onInit(item); |
| 4256 |
} |
| 4257 |
|
| 4258 |
//item.style.display = 'block'; |
| 4259 |
} else { |
| 4260 |
framework.addClass(item, 'pswp__element--disabled'); |
| 4261 |
//item.style.display = 'none'; |
| 4262 |
} |
| 4263 |
} |
| 4264 |
} |
| 4265 |
} |
| 4266 |
}; |
| 4267 |
loopThroughChildElements(_controls.children); |
| 4268 |
|
| 4269 |
var topBar = framework.getChildByClass(_controls, 'pswp__top-bar'); |
| 4270 |
if(topBar) { |
| 4271 |
loopThroughChildElements( topBar.children ); |
| 4272 |
} |
| 4273 |
}; |
| 4274 |
|
| 4275 |
|
| 4276 |
|
| 4277 |
|
| 4278 |
ui.init = function() { |
| 4279 |
|
| 4280 |
// extend options |
| 4281 |
framework.extend(pswp.options, _defaultUIOptions, true); |
| 4282 |
|
| 4283 |
// create local link for fast access |
| 4284 |
_options = pswp.options; |
| 4285 |
|
| 4286 |
// find pswp__ui element |
| 4287 |
_controls = framework.getChildByClass(pswp.scrollWrap, 'pswp__ui'); |
| 4288 |
|
| 4289 |
// create local link |
| 4290 |
_listen = pswp.listen; |
| 4291 |
|
| 4292 |
|
| 4293 |
_setupHidingControlsDuringGestures(); |
| 4294 |
|
| 4295 |
// update controls when slides change |
| 4296 |
_listen('beforeChange', ui.update); |
| 4297 |
|
| 4298 |
// toggle zoom on double-tap |
| 4299 |
_listen('doubleTap', function(point) { |
| 4300 |
var initialZoomLevel = pswp.currItem.initialZoomLevel; |
| 4301 |
if(pswp.getZoomLevel() !== initialZoomLevel) { |
| 4302 |
pswp.zoomTo(initialZoomLevel, point, 333); |
| 4303 |
} else { |
| 4304 |
pswp.zoomTo(_options.getDoubleTapZoom(false, pswp.currItem), point, 333); |
| 4305 |
} |
| 4306 |
}); |
| 4307 |
|
| 4308 |
// Allow text selection in caption |
| 4309 |
_listen('preventDragEvent', function(e, isDown, preventObj) { |
| 4310 |
var t = e.target || e.srcElement; |
| 4311 |
if( |
| 4312 |
t && |
| 4313 |
t.getAttribute('class') && e.type.indexOf('mouse') > -1 && |
| 4314 |
( t.getAttribute('class').indexOf('__caption') > 0 || (/(SMALL|STRONG|EM)/i).test(t.tagName) ) |
| 4315 |
) { |
| 4316 |
preventObj.prevent = false; |
| 4317 |
} |
| 4318 |
}); |
| 4319 |
|
| 4320 |
// bind events for UI |
| 4321 |
_listen('bindEvents', function() { |
| 4322 |
framework.bind(_controls, 'pswpTap click', _onControlsTap); |
| 4323 |
framework.bind(pswp.scrollWrap, 'pswpTap', ui.onGlobalTap); |
| 4324 |
|
| 4325 |
if(!pswp.likelyTouchDevice) { |
| 4326 |
framework.bind(pswp.scrollWrap, 'mouseover', ui.onMouseOver); |
| 4327 |
} |
| 4328 |
}); |
| 4329 |
|
| 4330 |
// unbind events for UI |
| 4331 |
_listen('unbindEvents', function() { |
| 4332 |
if(!_shareModalHidden) { |
| 4333 |
_toggleShareModal(); |
| 4334 |
} |
| 4335 |
|
| 4336 |
if(_idleInterval) { |
| 4337 |
clearInterval(_idleInterval); |
| 4338 |
} |
| 4339 |
framework.unbind(document, 'mouseout', _onMouseLeaveWindow); |
| 4340 |
framework.unbind(document, 'mousemove', _onIdleMouseMove); |
| 4341 |
framework.unbind(_controls, 'pswpTap click', _onControlsTap); |
| 4342 |
framework.unbind(pswp.scrollWrap, 'pswpTap', ui.onGlobalTap); |
| 4343 |
framework.unbind(pswp.scrollWrap, 'mouseover', ui.onMouseOver); |
| 4344 |
|
| 4345 |
if(_fullscrenAPI) { |
| 4346 |
framework.unbind(document, _fullscrenAPI.eventK, ui.updateFullscreen); |
| 4347 |
if(_fullscrenAPI.isFullscreen()) { |
| 4348 |
_options.hideAnimationDuration = 0; |
| 4349 |
_fullscrenAPI.exit(); |
| 4350 |
} |
| 4351 |
_fullscrenAPI = null; |
| 4352 |
} |
| 4353 |
}); |
| 4354 |
|
| 4355 |
|
| 4356 |
// clean up things when gallery is destroyed |
| 4357 |
_listen('destroy', function() { |
| 4358 |
if(_options.captionEl) { |
| 4359 |
if(_fakeCaptionContainer) { |
| 4360 |
_controls.removeChild(_fakeCaptionContainer); |
| 4361 |
} |
| 4362 |
framework.removeClass(_captionContainer, 'pswp__caption--empty'); |
| 4363 |
} |
| 4364 |
|
| 4365 |
if(_shareModal) { |
| 4366 |
_shareModal.children[0].onclick = null; |
| 4367 |
} |
| 4368 |
framework.removeClass(_controls, 'pswp__ui--over-close'); |
| 4369 |
framework.addClass( _controls, 'pswp__ui--hidden'); |
| 4370 |
ui.setIdle(false); |
| 4371 |
}); |
| 4372 |
|
| 4373 |
|
| 4374 |
if(!_options.showAnimationDuration) { |
| 4375 |
framework.removeClass( _controls, 'pswp__ui--hidden'); |
| 4376 |
} |
| 4377 |
_listen('initialZoomIn', function() { |
| 4378 |
if(_options.showAnimationDuration) { |
| 4379 |
framework.removeClass( _controls, 'pswp__ui--hidden'); |
| 4380 |
} |
| 4381 |
}); |
| 4382 |
_listen('initialZoomOut', function() { |
| 4383 |
framework.addClass( _controls, 'pswp__ui--hidden'); |
| 4384 |
}); |
| 4385 |
|
| 4386 |
_listen('parseVerticalMargin', _applyNavBarGaps); |
| 4387 |
|
| 4388 |
_setupUIElements(); |
| 4389 |
|
| 4390 |
if(_options.shareEl && _shareButton && _shareModal) { |
| 4391 |
_shareModalHidden = true; |
| 4392 |
} |
| 4393 |
|
| 4394 |
_countNumItems(); |
| 4395 |
|
| 4396 |
_setupIdle(); |
| 4397 |
|
| 4398 |
_setupFullscreenAPI(); |
| 4399 |
|
| 4400 |
_setupLoadingIndicator(); |
| 4401 |
}; |
| 4402 |
|
| 4403 |
ui.setIdle = function(isIdle) { |
| 4404 |
_isIdle = isIdle; |
| 4405 |
_togglePswpClass(_controls, 'ui--idle', isIdle); |
| 4406 |
}; |
| 4407 |
|
| 4408 |
ui.update = function() { |
| 4409 |
// Don't update UI if it's hidden |
| 4410 |
if(_controlsVisible && pswp.currItem) { |
| 4411 |
|
| 4412 |
ui.updateIndexIndicator(); |
| 4413 |
|
| 4414 |
if(_options.captionEl) { |
| 4415 |
_options.addCaptionHTMLFn(pswp.currItem, _captionContainer); |
| 4416 |
|
| 4417 |
_togglePswpClass(_captionContainer, 'caption--empty', !pswp.currItem.title); |
| 4418 |
} |
| 4419 |
|
| 4420 |
_overlayUIUpdated = true; |
| 4421 |
|
| 4422 |
} else { |
| 4423 |
_overlayUIUpdated = false; |
| 4424 |
} |
| 4425 |
|
| 4426 |
if(!_shareModalHidden) { |
| 4427 |
_toggleShareModal(); |
| 4428 |
} |
| 4429 |
|
| 4430 |
_countNumItems(); |
| 4431 |
}; |
| 4432 |
|
| 4433 |
ui.updateFullscreen = function(e) { |
| 4434 |
|
| 4435 |
if(e) { |
| 4436 |
// some browsers change window scroll position during the fullscreen |
| 4437 |
// so PhotoSwipe updates it just in case |
| 4438 |
setTimeout(function() { |
| 4439 |
pswp.setScrollOffset( 0, framework.getScrollY() ); |
| 4440 |
}, 50); |
| 4441 |
} |
| 4442 |
|
| 4443 |
// toogle pswp--fs class on root element |
| 4444 |
framework[ (_fullscrenAPI.isFullscreen() ? 'add' : 'remove') + 'Class' ](pswp.template, 'pswp--fs'); |
| 4445 |
}; |
| 4446 |
|
| 4447 |
ui.updateIndexIndicator = function() { |
| 4448 |
if(_options.counterEl) { |
| 4449 |
_indexIndicator.innerHTML = (pswp.getCurrentIndex()+1) + |
| 4450 |
_options.indexIndicatorSep + |
| 4451 |
_options.getNumItemsFn(); |
| 4452 |
} |
| 4453 |
}; |
| 4454 |
|
| 4455 |
ui.onGlobalTap = function(e) { |
| 4456 |
e = e || window.event; |
| 4457 |
var target = e.target || e.srcElement; |
| 4458 |
|
| 4459 |
if(_blockControlsTap) { |
| 4460 |
return; |
| 4461 |
} |
| 4462 |
|
| 4463 |
if(e.detail && e.detail.pointerType === 'mouse') { |
| 4464 |
|
| 4465 |
// close gallery if clicked outside of the image |
| 4466 |
if(_hasCloseClass(target)) { |
| 4467 |
pswp.close(); |
| 4468 |
return; |
| 4469 |
} |
| 4470 |
|
| 4471 |
if(framework.hasClass(target, 'pswp__img')) { |
| 4472 |
if(pswp.getZoomLevel() === 1 && pswp.getZoomLevel() <= pswp.currItem.fitRatio) { |
| 4473 |
if(_options.clickToCloseNonZoomable) { |
| 4474 |
pswp.close(); |
| 4475 |
} |
| 4476 |
} else { |
| 4477 |
pswp.toggleDesktopZoom(e.detail.releasePoint); |
| 4478 |
} |
| 4479 |
} |
| 4480 |
|
| 4481 |
} else { |
| 4482 |
|
| 4483 |
// tap anywhere (except buttons) to toggle visibility of controls |
| 4484 |
if(_options.tapToToggleControls) { |
| 4485 |
if(_controlsVisible) { |
| 4486 |
ui.hideControls(); |
| 4487 |
} else { |
| 4488 |
ui.showControls(); |
| 4489 |
} |
| 4490 |
} |
| 4491 |
|
| 4492 |
// tap to close gallery |
| 4493 |
if(_options.tapToClose && (framework.hasClass(target, 'pswp__img') || _hasCloseClass(target)) ) { |
| 4494 |
pswp.close(); |
| 4495 |
return; |
| 4496 |
} |
| 4497 |
|
| 4498 |
} |
| 4499 |
}; |
| 4500 |
ui.onMouseOver = function(e) { |
| 4501 |
e = e || window.event; |
| 4502 |
var target = e.target || e.srcElement; |
| 4503 |
|
| 4504 |
// add class when mouse is over an element that should close the gallery |
| 4505 |
_togglePswpClass(_controls, 'ui--over-close', _hasCloseClass(target)); |
| 4506 |
}; |
| 4507 |
|
| 4508 |
ui.hideControls = function() { |
| 4509 |
framework.addClass(_controls,'pswp__ui--hidden'); |
| 4510 |
_controlsVisible = false; |
| 4511 |
}; |
| 4512 |
|
| 4513 |
ui.showControls = function() { |
| 4514 |
_controlsVisible = true; |
| 4515 |
if(!_overlayUIUpdated) { |
| 4516 |
ui.update(); |
| 4517 |
} |
| 4518 |
framework.removeClass(_controls,'pswp__ui--hidden'); |
| 4519 |
}; |
| 4520 |
|
| 4521 |
ui.supportsFullscreen = function() { |
| 4522 |
var d = document; |
| 4523 |
return !!(d.exitFullscreen || d.mozCancelFullScreen || d.webkitExitFullscreen || d.msExitFullscreen); |
| 4524 |
}; |
| 4525 |
|
| 4526 |
ui.getFullscreenAPI = function() { |
| 4527 |
var dE = document.documentElement, |
| 4528 |
api, |
| 4529 |
tF = 'fullscreenchange'; |
| 4530 |
|
| 4531 |
if (dE.requestFullscreen) { |
| 4532 |
api = { |
| 4533 |
enterK: 'requestFullscreen', |
| 4534 |
exitK: 'exitFullscreen', |
| 4535 |
elementK: 'fullscreenElement', |
| 4536 |
eventK: tF |
| 4537 |
}; |
| 4538 |
|
| 4539 |
} else if(dE.mozRequestFullScreen ) { |
| 4540 |
api = { |
| 4541 |
enterK: 'mozRequestFullScreen', |
| 4542 |
exitK: 'mozCancelFullScreen', |
| 4543 |
elementK: 'mozFullScreenElement', |
| 4544 |
eventK: 'moz' + tF |
| 4545 |
}; |
| 4546 |
|
| 4547 |
|
| 4548 |
|
| 4549 |
} else if(dE.webkitRequestFullscreen) { |
| 4550 |
api = { |
| 4551 |
enterK: 'webkitRequestFullscreen', |
| 4552 |
exitK: 'webkitExitFullscreen', |
| 4553 |
elementK: 'webkitFullscreenElement', |
| 4554 |
eventK: 'webkit' + tF |
| 4555 |
}; |
| 4556 |
|
| 4557 |
} else if(dE.msRequestFullscreen) { |
| 4558 |
api = { |
| 4559 |
enterK: 'msRequestFullscreen', |
| 4560 |
exitK: 'msExitFullscreen', |
| 4561 |
elementK: 'msFullscreenElement', |
| 4562 |
eventK: 'MSFullscreenChange' |
| 4563 |
}; |
| 4564 |
} |
| 4565 |
|
| 4566 |
if(api) { |
| 4567 |
api.enter = function() { |
| 4568 |
// disable close-on-scroll in fullscreen |
| 4569 |
_initalCloseOnScrollValue = _options.closeOnScroll; |
| 4570 |
_options.closeOnScroll = false; |
| 4571 |
|
| 4572 |
if(this.enterK === 'webkitRequestFullscreen') { |
| 4573 |
pswp.template[this.enterK]( Element.ALLOW_KEYBOARD_INPUT ); |
| 4574 |
} else { |
| 4575 |
return pswp.template[this.enterK](); |
| 4576 |
} |
| 4577 |
}; |
| 4578 |
api.exit = function() { |
| 4579 |
_options.closeOnScroll = _initalCloseOnScrollValue; |
| 4580 |
|
| 4581 |
return document[this.exitK](); |
| 4582 |
|
| 4583 |
}; |
| 4584 |
api.isFullscreen = function() { return document[this.elementK]; }; |
| 4585 |
} |
| 4586 |
|
| 4587 |
return api; |
| 4588 |
}; |
| 4589 |
|
| 4590 |
|
| 4591 |
|
| 4592 |
}; |
| 4593 |
return PhotoSwipeUI_Default; |
| 4594 |
|
| 4595 |
|
| 4596 |
}); |
| 4597 |
|
