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3 lines
19 KiB
JavaScript
3 lines
19 KiB
JavaScript
!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Shuffle=e()}(this,function(){"use strict";function t(){}function e(){}function i(t){return parseFloat(t)||0}function n(t,e){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:window.getComputedStyle(t,null),s=i(n[e]);return x||"width"!==e?x||"height"!==e||(s+=i(n.paddingTop)+i(n.paddingBottom)+i(n.borderTopWidth)+i(n.borderBottomWidth)):s+=i(n.paddingLeft)+i(n.paddingRight)+i(n.borderLeftWidth)+i(n.borderRightWidth),s}function s(t){for(var e=t.length;e;){e-=1;var i=Math.floor(Math.random()*(e+1)),n=t[i];t[i]=t[e],t[e]=n}return t}function o(t,e){var i=Object.assign({},N,e),n=Array.from(t),o=!1;return t.length?i.randomize?s(t):("function"==typeof i.by&&t.sort(function(t,e){if(o)return 0;var n=i.by(t[i.key]),s=i.by(e[i.key]);return void 0===n&&void 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Array(o);t.forEach(i?function(t,e){t.call(i,s(e))}:function(t,e){t(s(e))})},S=function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")},T=function(){function t(t,e){for(var i=0;i<e.length;i++){var n=e[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,i,n){return i&&t(e.prototype,i),n&&t(e,n),e}}(),k=function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)},w=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e},C=function(){function t(e,n){S(this,t),this.x=i(e),this.y=i(n)}return 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T(t,[{key:"show",value:function(){this.isVisible=!0,this.element.classList.remove(D.HIDDEN),this.element.classList.add(D.VISIBLE),this.element.removeAttribute("aria-hidden")}},{key:"hide",value:function(){this.isVisible=!1,this.element.classList.remove(D.VISIBLE),this.element.classList.add(D.HIDDEN),this.element.setAttribute("aria-hidden",!0)}},{key:"init",value:function(){this.addClasses([D.SHUFFLE_ITEM,D.VISIBLE]),this.applyCss(t.Css.INITIAL),this.scale=t.Scale.VISIBLE,this.point=new C}},{key:"addClasses",value:function(t){var e=this;t.forEach(function(t){e.element.classList.add(t)})}},{key:"removeClasses",value:function(t){var e=this;t.forEach(function(t){e.element.classList.remove(t)})}},{key:"applyCss",value:function(t){var e=this;Object.keys(t).forEach(function(i){e.element.style[i]=t[i]})}},{key:"dispose",value:function(){this.removeClasses([D.HIDDEN,D.VISIBLE,D.SHUFFLE_ITEM]),this.element.removeAttribute("style"),this.element=null}}]),t}();M.Css={INITIAL:{position:"absolute",top:0,left:0,visibility:"visible","will-change":"transform"},VISIBLE:{before:{opacity:1,visibility:"visible"},after:{transitionDelay:""}},HIDDEN:{before:{opacity:0},after:{visibility:"hidden",transitionDelay:""}}},M.Scale={VISIBLE:1,HIDDEN:.001};var A=document.body||document.documentElement,F=document.createElement("div");F.style.cssText="width:10px;padding:2px;box-sizing:border-box;",A.appendChild(F);var x="10px"===window.getComputedStyle(F,null).width;A.removeChild(F);var N={reverse:!1,by:null,randomize:!1,key:"element"},O={},H="transitionend",B=0,W=0,V=function(t){function e(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};S(this,e);var n=w(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));n.options=Object.assign({},e.options,i),n.lastSort={},n.group=e.ALL_ITEMS,n.lastFilter=e.ALL_ITEMS,n.isEnabled=!0,n.isDestroyed=!1,n.isInitialized=!1,n._transitions=[],n.isTransitioning=!1,n._queue=[];var s=n._getElementOption(t);if(!s)throw new TypeError("Shuffle needs to be initialized with an element.");return n.element=s,n.id="shuffle_"+W,W+=1,n._init(),n.isInitialized=!0,n}return k(e,g),T(e,[{key:"_init",value:function(){if(this.items=this._getItems(),this.options.sizer=this._getElementOption(this.options.sizer),this.element.classList.add(e.Classes.BASE),this._initItems(this.items),this._onResize=this._getResizeFunction(),window.addEventListener("resize",this._onResize),"complete"!==document.readyState){var t=this.layout.bind(this);window.addEventListener("load",function e(){window.removeEventListener("load",e),t()})}var i=window.getComputedStyle(this.element,null),n=e.getSize(this.element).width;this._validateStyles(i),this._setColumns(n),this.filter(this.options.group,this.options.initialSort),this.element.offsetWidth,this.setItemTransitions(this.items),this.element.style.transition="height "+this.options.speed+"ms "+this.options.easing}},{key:"_getResizeFunction",value:function(){var t=this._handleResize.bind(this);return this.options.throttle?this.options.throttle(t,this.options.throttleTime):t}},{key:"_getElementOption",value:function(t){return"string"==typeof t?this.element.querySelector(t):t&&t.nodeType&&1===t.nodeType?t:t&&t.jquery?t[0]:null}},{key:"_validateStyles",value:function(t){"static"===t.position&&(this.element.style.position="relative"),"hidden"!==t.overflow&&(this.element.style.overflow="hidden")}},{key:"_filter",value:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.lastFilter,e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:this.items,i=this._getFilteredSets(t,e);return this._toggleFilterClasses(i),this.lastFilter=t,"string"==typeof t&&(this.group=t),i}},{key:"_getFilteredSets",value:function(t,i){var n=this,s=[],o=[];return t===e.ALL_ITEMS?s=i:i.forEach(function(e){n._doesPassFilter(t,e.element)?s.push(e):o.push(e)}),{visible:s,hidden:o}}},{key:"_doesPassFilter",value:function(t,i){function n(t){return o.includes(t)}if("function"==typeof t)return t.call(i,i,this);var s=i.getAttribute("data-"+e.FILTER_ATTRIBUTE_KEY),o=this.options.delimeter?s.split(this.options.delimeter):JSON.parse(s);return Array.isArray(t)?this.options.filterMode===e.FilterMode.ANY?t.some(n):t.every(n):o.includes(t)}},{key:"_toggleFilterClasses",value:function(t){var e=t.visible,i=t.hidden;e.forEach(function(t){t.show()}),i.forEach(function(t){t.hide()})}},{key:"_initItems",value:function(t){t.forEach(function(t){t.init()})}},{key:"_disposeItems",value:function(t){t.forEach(function(t){t.dispose()})}},{key:"_updateItemCount",value:function(){this.visibleItems=this._getFilteredItems().length}},{key:"setItemTransitions",value:function(t){var e=this.options.speed,i=this.options.easing,n=(this.options.useTransforms?["transform"]:["top","left"]).concat(Object.keys(M.Css.HIDDEN.before).map(function(t){return v(t)})).join();t.forEach(function(t){t.element.style.transitionDuration=e+"ms",t.element.style.transitionTimingFunction=i,t.element.style.transitionProperty=n})}},{key:"_getItems",value:function(){var t=this;return Array.from(this.element.children).filter(function(e){return I(e,t.options.itemSelector)}).map(function(t){return new M(t)})}},{key:"_mergeNewItems",value:function(t){var e=Array.from(this.element.children);return o(this.items.concat(t),{by:function(t){return e.indexOf(t)}})}},{key:"_getFilteredItems",value:function(){return this.items.filter(function(t){return t.isVisible})}},{key:"_getConcealedItems",value:function(){return this.items.filter(function(t){return!t.isVisible})}},{key:"_getColumnSize",value:function(t,i){var n=void 0;return 0===(n="function"==typeof this.options.columnWidth?this.options.columnWidth(t):this.options.sizer?e.getSize(this.options.sizer).width:this.options.columnWidth?this.options.columnWidth:this.items.length>0?e.getSize(this.items[0].element,!0).width:t)&&(n=t),n+i}},{key:"_getGutterSize",value:function(t){return"function"==typeof this.options.gutterWidth?this.options.gutterWidth(t):this.options.sizer?n(this.options.sizer,"marginLeft"):this.options.gutterWidth}},{key:"_setColumns",value:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:e.getSize(this.element).width,i=this._getGutterSize(t),n=this._getColumnSize(t,i),s=(t+i)/n;Math.abs(Math.round(s)-s)<this.options.columnThreshold&&(s=Math.round(s)),this.cols=Math.max(Math.floor(s),1),this.containerWidth=t,this.colWidth=n}},{key:"_setContainerSize",value:function(){this.element.style.height=this._getContainerSize()+"px"}},{key:"_getContainerSize",value:function(){return u(this.positions)}},{key:"_getStaggerAmount",value:function(t){return Math.min(t*this.options.staggerAmount,this.options.staggerAmountMax)}},{key:"_dispatch",value:function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};this.isDestroyed||(e.shuffle=this,this.emit(t,e))}},{key:"_resetCols",value:function(){var t=this.cols;for(this.positions=[];t;)t-=1,this.positions.push(0)}},{key:"_layout",value:function(t){var e=this,i=this._getNextPositions(t),n=0;t.forEach(function(t,s){function o(){t.applyCss(M.Css.VISIBLE.after)}if(C.equals(t.point,i[s])&&!t.isHidden)return t.applyCss(M.Css.VISIBLE.before),void o();t.point=i[s],t.scale=M.Scale.VISIBLE,t.isHidden=!1;var r=e.getStylesForTransition(t,M.Css.VISIBLE.before);r.transitionDelay=e._getStaggerAmount(n)+"ms",e._queue.push({item:t,styles:r,callback:o}),n+=1})}},{key:"_getNextPositions",value:function(t){var i=this;if(this.options.isCentered){var n=t.map(function(t,n){var s=e.getSize(t.element,!0),o=i._getItemPosition(s);return new L(o.x,o.y,s.width,s.height,n)});return this.getTransformedPositions(n,this.containerWidth)}return t.map(function(t){return i._getItemPosition(e.getSize(t.element,!0))})}},{key:"_getItemPosition",value:function(t){return m({itemSize:t,positions:this.positions,gridSize:this.colWidth,total:this.cols,threshold:this.options.columnThreshold,buffer:this.options.buffer})}},{key:"getTransformedPositions",value:function(t,e){return p(t,e)}},{key:"_shrink",value:function(){var t=this,e=0;(arguments.length>0&&void 0!==arguments[0]?arguments[0]:this._getConcealedItems()).forEach(function(i){function n(){i.applyCss(M.Css.HIDDEN.after)}if(i.isHidden)return i.applyCss(M.Css.HIDDEN.before),void n();i.scale=M.Scale.HIDDEN,i.isHidden=!0;var s=t.getStylesForTransition(i,M.Css.HIDDEN.before);s.transitionDelay=t._getStaggerAmount(e)+"ms",t._queue.push({item:i,styles:s,callback:n}),e+=1})}},{key:"_handleResize",value:function(){this.isEnabled&&!this.isDestroyed&&this.update()}},{key:"getStylesForTransition",value:function(t,e){var i=Object.assign({},e);return this.options.useTransforms?(this.options.roundTransforms&&(t.point=new C(Math.round(t.point.x),Math.round(t.point.y))),i.transform="translate("+t.point.x+"px, "+t.point.y+"px) scale("+t.scale+")"):(i.left=t.point.x+"px",i.top=t.point.y+"px"),i}},{key:"_whenTransitionDone",value:function(t,e,i){var n=a(t,function(t){e(),i(null,t)});this._transitions.push(n)}},{key:"_getTransitionFunction",value:function(t){var e=this;return function(i){t.item.applyCss(t.styles),e._whenTransitionDone(t.item.element,t.callback,i)}}},{key:"_processQueue",value:function(){this.isTransitioning&&this._cancelMovement();var t=this.options.speed>0,i=this._queue.length>0;i&&t&&this.isInitialized?this._startTransitions(this._queue):i?(this._styleImmediately(this._queue),this._dispatch(e.EventType.LAYOUT)):this._dispatch(e.EventType.LAYOUT),this._queue.length=0}},{key:"_startTransitions",value:function(t){var e=this;this.isTransitioning=!0;var i=t.map(function(t){return e._getTransitionFunction(t)});b(i,this._movementFinished.bind(this))}},{key:"_cancelMovement",value:function(){this._transitions.forEach(l),this._transitions.length=0,this.isTransitioning=!1}},{key:"_styleImmediately",value:function(t){if(t.length){var i=t.map(function(t){return t.item.element});e._skipTransitions(i,function(){t.forEach(function(t){t.item.applyCss(t.styles),t.callback()})})}}},{key:"_movementFinished",value:function(){this._transitions.length=0,this.isTransitioning=!1,this._dispatch(e.EventType.LAYOUT)}},{key:"filter",value:function(t,i){this.isEnabled&&((!t||t&&0===t.length)&&(t=e.ALL_ITEMS),this._filter(t),this._shrink(),this._updateItemCount(),this.sort(i))}},{key:"sort",value:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.lastSort;if(this.isEnabled){this._resetCols();var e=o(this._getFilteredItems(),t);this._layout(e),this._processQueue(),this._setContainerSize(),this.lastSort=t}}},{key:"update",value:function(){var t=arguments.length>0&&void 0!==arguments[0]&&arguments[0];this.isEnabled&&(t||this._setColumns(),this.sort())}},{key:"layout",value:function(){this.update(!0)}},{key:"add",value:function(t){var e=this,i=y(t).map(function(t){return new M(t)});this._initItems(i),this._resetCols();var n=this._filter(this.lastFilter,i),s=o(this._mergeNewItems(n.visible),this.lastSort),r=this._getNextPositions(s);s.forEach(function(t,i){n.visible.includes(t)&&(t.point=r[i],t.scale=M.Scale.HIDDEN,t.isHidden=!0,t.applyCss(M.Css.HIDDEN.before),t.applyCss(M.Css.HIDDEN.after),t.applyCss(e.getStylesForTransition(t,{})))}),this.element.offsetWidth,this.setItemTransitions(i),this.items=this._mergeNewItems(i),this.filter(this.lastFilter)}},{key:"disable",value:function(){this.isEnabled=!1}},{key:"enable",value:function(){var t=!(arguments.length>0&&void 0!==arguments[0])||arguments[0];this.isEnabled=!0,t&&this.update()}},{key:"remove",value:function(t){var i=this;if(t.length){var n=y(t),s=n.map(function(t){return i.getItemByElement(t)}).filter(function(t){return!!t});this._toggleFilterClasses({visible:[],hidden:s}),this._shrink(s),this.sort(),this.items=this.items.filter(function(t){return!s.includes(t)}),this._updateItemCount(),this.once(e.EventType.LAYOUT,function(){i._disposeItems(s),n.forEach(function(t){t.parentNode.removeChild(t)}),i._dispatch(e.EventType.REMOVED,{collection:n})})}}},{key:"getItemByElement",value:function(t){return this.items.find(function(e){return e.element===t})}},{key:"resetItems",value:function(){var t=this;this._disposeItems(this.items),this.isInitialized=!1,this.items=this._getItems(),this._initItems(this.items),this.once(e.EventType.LAYOUT,function(){t.setItemTransitions(t.items),t.isInitialized=!0}),this.filter(this.lastFilter)}},{key:"destroy",value:function(){this._cancelMovement(),window.removeEventListener("resize",this._onResize),this.element.classList.remove("shuffle"),this.element.removeAttribute("style"),this._disposeItems(this.items),this.items.length=0,this._transitions.length=0,this.options.sizer=null,this.element=null,this.isDestroyed=!0,this.isEnabled=!1}}],[{key:"getSize",value:function(t){var e=arguments.length>1&&void 0!==arguments[1]&&arguments[1],i=window.getComputedStyle(t,null),s=n(t,"width",i),o=n(t,"height",i);return e&&(s+=n(t,"marginLeft",i)+n(t,"marginRight",i),o+=n(t,"marginTop",i)+n(t,"marginBottom",i)),{width:s,height:o}}},{key:"_skipTransitions",value:function(t,e){var i=t.map(function(t){var e=t.style,i=e.transitionDuration,n=e.transitionDelay;return e.transitionDuration="0ms",e.transitionDelay="0ms",{duration:i,delay:n}});e(),t[0].offsetWidth,t.forEach(function(t,e){t.style.transitionDuration=i[e].duration,t.style.transitionDelay=i[e].delay})}}]),e}();return V.ShuffleItem=M,V.ALL_ITEMS="all",V.FILTER_ATTRIBUTE_KEY="groups",V.EventType={LAYOUT:"shuffle:layout",REMOVED:"shuffle:removed"},V.Classes=D,V.FilterMode={ANY:"any",ALL:"all"},V.options={group:V.ALL_ITEMS,speed:250,easing:"cubic-bezier(0.4, 0.0, 0.2, 1)",itemSelector:"*",sizer:null,gutterWidth:0,columnWidth:0,delimeter:null,buffer:0,columnThreshold:.01,initialSort:null,throttle:function(t,e){function i(){r=0,l=+new Date,o=t.apply(n,s),n=null,s=null}var n,s,o,r,l=0;return function(){n=this,s=arguments;var t=new Date-l;return r||(t>=e?i():r=setTimeout(i,e-t)),o}},throttleTime:300,staggerAmount:15,staggerAmountMax:150,useTransforms:!0,filterMode:V.FilterMode.ANY,isCentered:!1,roundTransforms:!0},V.Point=C,V.Rect=L,V.__sorter=o,V.__getColumnSpan=f,V.__getAvailablePositions=c,V.__getShortColumn=d,V.__getCenteredPositions=p,V});
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