|
| 1 | +/*! Lazy Load XT v1.1.0 2016-01-12 |
| 2 | + * http://ressio.github.io/lazy-load-xt |
| 3 | + * (C) 2016 RESS.io |
| 4 | + * Licensed under MIT */ |
| 5 | + |
| 6 | +(function (window, document, Element, undefined) { |
| 7 | + function Wrapper(collection) { |
| 8 | + if (collection) { |
| 9 | + for (var i = 0, length = collection.length; i < length; i++) { |
| 10 | + this[i] = collection[i]; |
| 11 | + } |
| 12 | + this.length = length; |
| 13 | + } |
| 14 | + } |
| 15 | + |
| 16 | + function $(selector) { |
| 17 | + if (selector instanceof Wrapper) { |
| 18 | + return selector; |
| 19 | + } |
| 20 | + return new Wrapper((typeof selector === 'string') ? document.querySelectorAll(selector) |
| 21 | + : (selector && (selector === window || selector.nodeType) ? [selector] : selector)); |
| 22 | + } |
| 23 | + |
| 24 | + $.fn = { |
| 25 | + constructor: Wrapper, |
| 26 | + length: 0 |
| 27 | + }; |
| 28 | + Wrapper.prototype = $.fn; |
| 29 | + |
| 30 | + $.extend = function (target) { |
| 31 | + var options, name, copy, i = 0, length = arguments.length; |
| 32 | + if (length <= 1) { |
| 33 | + target = this; |
| 34 | + } else { |
| 35 | + i = 1; |
| 36 | + } |
| 37 | + for (; i < length; i++) { |
| 38 | + options = arguments[i]; |
| 39 | + for (name in options) { |
| 40 | + copy = options[name]; |
| 41 | + if (copy !== undefined && copy !== target) { |
| 42 | + target[name] = copy; |
| 43 | + } |
| 44 | + } |
| 45 | + } |
| 46 | + return target; |
| 47 | + }; |
| 48 | + $.fn.extend = $.extend; |
| 49 | + |
| 50 | + var prev_$ = window.$; |
| 51 | + window.$ = $; |
| 52 | + |
| 53 | + $.extend({ |
| 54 | + noConflict: function () { |
| 55 | + window.$ = prev_$; |
| 56 | + return $; |
| 57 | + }, |
| 58 | + isFunction: function (obj) { |
| 59 | + return (typeof obj === 'function'); |
| 60 | + }, |
| 61 | + contains: function (a, b) { |
| 62 | + if (b) { |
| 63 | + while ((b = b.parentNode)) { |
| 64 | + if (b === a) { |
| 65 | + return true; |
| 66 | + } |
| 67 | + } |
| 68 | + } |
| 69 | + return false; |
| 70 | + }, |
| 71 | + each: function (array, callback) { |
| 72 | + var value, i = 0, length = array.length; |
| 73 | + for (; i < length; i++) { |
| 74 | + value = array[i]; |
| 75 | + if (callback.call(value, i, value) === false) { |
| 76 | + return false; |
| 77 | + } |
| 78 | + } |
| 79 | + return true; |
| 80 | + }, |
| 81 | + grep: function (elems, callback, invert) { |
| 82 | + var callbackInverse, |
| 83 | + matches = [], |
| 84 | + i = 0, |
| 85 | + length = elems.length, |
| 86 | + callbackExpect = !invert; |
| 87 | + for (; i < length; i++) { |
| 88 | + callbackInverse = !callback(i, elems[i]); |
| 89 | + if (callbackInverse !== callbackExpect) { |
| 90 | + matches.push(elems[i]); |
| 91 | + } |
| 92 | + } |
| 93 | + return matches; |
| 94 | + }, |
| 95 | + map: function (elems, callback) { |
| 96 | + var value, |
| 97 | + i = 0, |
| 98 | + length = elems.length, |
| 99 | + ret = []; |
| 100 | + for (; i < length; i++) { |
| 101 | + value = callback(i, elems[i]); |
| 102 | + if (value != null) { |
| 103 | + ret.push(value); |
| 104 | + } |
| 105 | + } |
| 106 | + return ret; |
| 107 | + } |
| 108 | + }); |
| 109 | + |
| 110 | + var DATAKEYPROP = '__jqlight_data__'; |
| 111 | + $.fn.extend({ |
| 112 | + each: function (callback, args) { |
| 113 | + $.each(this, callback, args); |
| 114 | + return this; |
| 115 | + }, |
| 116 | + ready: function (fn) { |
| 117 | + if (/complete|loaded|interactive/.test(document.readyState) && document.body) { |
| 118 | + fn(); |
| 119 | + } else { |
| 120 | + $(document).on('DOMContentLoaded', fn); |
| 121 | + } |
| 122 | + return this; |
| 123 | + }, |
| 124 | + addClass: function (value) { |
| 125 | + return eachClass(this, value, function (cur, clazz, found) { |
| 126 | + return found ? cur : cur + clazz + ' '; |
| 127 | + }); |
| 128 | + }, |
| 129 | + removeClass: function (value) { |
| 130 | + return eachClass(this, value, function (cur, clazz, found) { |
| 131 | + return found ? cur.replace(' ' + clazz + ' ', ' ') : cur; |
| 132 | + }); |
| 133 | + }, |
| 134 | + on: function (types, selector, fn) { |
| 135 | + if (fn == null) { |
| 136 | + // ( types, fn ) |
| 137 | + fn = selector; |
| 138 | + selector = undefined; |
| 139 | + } |
| 140 | + types = types.split(' '); |
| 141 | + return this.each(function (i, elem) { |
| 142 | + var listener = selector ? delegateHandler.bind(elem, selector, fn) : fn; |
| 143 | + $.each(types, function (j, eventName) { |
| 144 | + if (eventName) { |
| 145 | + elem.addEventListener(eventName, listener); |
| 146 | + } |
| 147 | + }); |
| 148 | + }); |
| 149 | + }, |
| 150 | + off: function (types, selector, fn) { |
| 151 | + if (selector === false || $.isFunction(selector)) { |
| 152 | + // ( types [, fn] ) |
| 153 | + fn = selector; |
| 154 | + selector = undefined; |
| 155 | + } |
| 156 | + types = types.split(' '); |
| 157 | + return this.each(function (i, elem) { |
| 158 | + $.each(types, function (j, eventName) { |
| 159 | + if (eventName) { |
| 160 | + elem.removeEventListener(eventName, fn); |
| 161 | + } |
| 162 | + }); |
| 163 | + }); |
| 164 | + }, |
| 165 | + trigger: function (type, data) { |
| 166 | + return this.each(function () { |
| 167 | + var evt; |
| 168 | + if (window.CustomEvent) { |
| 169 | + evt = new CustomEvent(type, {detail: data}); |
| 170 | + } else { |
| 171 | + evt = document.createEvent('CustomEvent'); |
| 172 | + evt.initCustomEvent(type, true, true, data); |
| 173 | + } |
| 174 | + this.dispatchEvent(evt); |
| 175 | + }); |
| 176 | + }, |
| 177 | + data: function (key, value) { |
| 178 | + if (typeof key === 'string' && value === undefined) { |
| 179 | + var elem = this[0]; |
| 180 | + return elem && elem[DATAKEYPROP] ? elem[DATAKEYPROP][key] : undefined; |
| 181 | + } |
| 182 | + this.each(function (i, elem) { |
| 183 | + elem[DATAKEYPROP] = elem[DATAKEYPROP] || {}; |
| 184 | + elem[DATAKEYPROP][key] = value; |
| 185 | + }); |
| 186 | + return this; |
| 187 | + }, |
| 188 | + map: function (callback) { |
| 189 | + return $($.map(this, callback)); |
| 190 | + }, |
| 191 | + filter: function (callback) { |
| 192 | + return $($.grep(this, callback)); |
| 193 | + }, |
| 194 | + attr: function (name, value) { |
| 195 | + if (value === undefined) { |
| 196 | + return this.length ? this[0].getAttribute(name) : undefined; |
| 197 | + } |
| 198 | + $.each(this, function (i, elem) { |
| 199 | + elem.setAttribute(name, value + ''); |
| 200 | + }); |
| 201 | + return this; |
| 202 | + } |
| 203 | + }); |
| 204 | + |
| 205 | + function eachClass(obj, value, callback) { |
| 206 | + var classes = ( value || '' ).match(/\S+/g) || [], |
| 207 | + elem, cur, clazz, j, origValue, finalValue, |
| 208 | + i = 0, |
| 209 | + len = obj.length; |
| 210 | + while (i < len) { |
| 211 | + elem = obj[i++]; |
| 212 | + if (elem.nodeType === 1) { |
| 213 | + origValue = elem.className; |
| 214 | + cur = origValue ? ( ' ' + origValue + ' ' ).replace(/[\t\r\n\f]/g, ' ') : ' '; |
| 215 | + j = 0; |
| 216 | + while ((clazz = classes[j++])) { |
| 217 | + cur = callback(cur, clazz, cur.indexOf(' ' + clazz + ' ') >= 0); |
| 218 | + } |
| 219 | + finalValue = cur.slice(1, -1); |
| 220 | + if (origValue !== finalValue) { |
| 221 | + elem.className = finalValue; |
| 222 | + } |
| 223 | + } |
| 224 | + } |
| 225 | + return obj; |
| 226 | + } |
| 227 | + |
| 228 | + function delegateHandler(selector, handler, event) { |
| 229 | + var currentTarget = closest.call([event.target], selector, this)[0]; |
| 230 | + if (currentTarget && currentTarget !== this) { |
| 231 | + handler.call(currentTarget, event); |
| 232 | + } |
| 233 | + } |
| 234 | + |
| 235 | + var matches = Element.matches || Element.matchesSelector || Element.mozMatchesSelector || Element.msMatchesSelector || Element.oMatchesSelector || Element.webkitMatchesSelector; |
| 236 | + |
| 237 | + function closest(selector, context) { |
| 238 | + var nodes = []; |
| 239 | + $.each(this, function (i, node) { |
| 240 | + while (node && node !== context) { |
| 241 | + if (matches.call(node, selector)) { |
| 242 | + nodes.push(node); |
| 243 | + break; |
| 244 | + } |
| 245 | + node = node.parentElement; |
| 246 | + } |
| 247 | + }); |
| 248 | + return $($.grep(nodes, function (index, item) { |
| 249 | + return nodes.indexOf(item) === index; |
| 250 | + })); |
| 251 | + } |
| 252 | +})(window, document, Element.prototype); |
0 commit comments