/*
Copyright (c) 2015 NAVER Corp.
name: @egjs/infinitegrid
license: MIT
author: NAVER Corp.
repository: https://github.com/naver/egjs-infinitegrid
version: 3.6.0-beta3
*/
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0===t&&(t=2!==this._getLoadingStatus()),this._loadingBar[t?"append":"prepend"]},e.startLoading=function(t,e){var i=this;if(void 0===e&&(e={display:"block"}),this.isLoading())return this;var n=t?"append":"prepend";if(this._process(t?1:2),!this._loadingBar[n])return this;function r(){i._renderLoading(e),i._status.loadingStyle=e,t?i._setContainerSize(i._getEdgeValue("end")+i._status.loadingSize):i._fit()}return this.options.renderExternal?this.trigger("render",{next:r}):r(),this},e.endLoading=function(t){var e;if(void 0===t&&(t={display:"none"}),!this.isLoading())return this;var i=1===this._getLoadingStatus(),n=i?"append":"prepend",r=this._loadingBar[n],s=this._status,o=s.loadingSize;if(this._process(3,!1),s.loadingSize=0,s.loadingStyle={},r){var a=Z(((e={})[this.options.horizontal?"left":"top"]=-o+"px",e),t);for(var u in a)r.style[u]=a[u];i?this._setContainerSize(this._getEdgeValue("end")):this._fitItems(o),this.options.renderExternal&&this.trigger("render",{next:function(){}})}return 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f||m?this._scrollTo(v):this._postLayout({fromCache:!0,groups:[e],items:a,newItems:[],isAppend:m,isTrusted:!1}).on("renderComplete",function(t){var e=t.start,i=t.end,n=o._itemManager;if(n){var r=a[s].rect[g?"left":"top"];f||n.clearOutlines(e,i),o._scrollTo(r),o._setScrollPos(r)}}),this}m=l<t||t<c-1;return this._postCache({isAppend:m,cache:[e],isTrusted:!1}).on("renderComplete",function(t){var e=t.start,i=t.end,n=o._itemManager;if(n){var r=a[s].rect[g?"left":"top"];n.clearOutlines(e,i),o._scrollTo(r),o._setScrollPos(r)}}),this},e.destroy=function(){this._infinite.clear(),this._watcher.destroy(),this._reset(),this._itemManager.clear(),this._renderer.destroy()},e._relayout=function(t,e,i){var n=this._renderer,r=n.options,s=r.isEqualSize,o=r.isConstantSize,a=e.filter(function(t){var e=t.items[0];return e.orgSize&&-1e4<e.rect.top});if(!a.length)return[];var u=a[0].outlines.start;t&&(u=[u.length?Math.min.apply(Math,u):0],!o&&i.length&&(n.updateSize(i),s&&i[0].size&&nt.pluck(a,"items").forEach(function(t){t.size=Z({},i[0].size)}))),this._layout.layout(a,u)},e._setContainerSize=function(t){this._renderer.setContainerSize(Math.max(this._itemManager.getMaxEdgeValue(),t))},e._appendLoadingBar=function(){if(!this.options.renderExternal){var t=this._loadingBar,e=this._renderer.container;for(var i in t)e.appendChild(t[i])}},e._setSize=function(t){this._infinite.setSize(this._renderer.getViewSize()),this._layout.setSize(t)},e._fitItems=function(t,e){void 0===e&&(e=0),0<t&&this._watcher.scrollBy(-t),this._itemManager.fit(t,this.options.horizontal),ot.renderItems(this.getItems()),this._setContainerSize(this._getEdgeValue("end")||e),t<0&&this._watcher.scrollBy(-t)},e._fit=function(t){void 0===t&&(t=this.options.useFit);var e=this._getEdgeValue("start"),i=2===this._getLoadingStatus()&&this._status.loadingSize||0,n=this.options,r=n.isConstantSize,s=n.isEqualSize;if(!n.useRecycle||!t||r||s)e<i&&this._fitItems(e-i,i),e=0;else{if(0===e&&!i)return 0;this._fitItems(e-i,i)}return this.isLoading()&&this._renderLoading(),e},e._getEdgeValue=function(t){return this._infinite.getEdgeValue(t)},e._isProcessing=function(){return 0<(4&this._status.processingStatus)},e._getLoadingStatus=function(){return 3&this._status.processingStatus},e._process=function(t,e){void 0===e&&(e=!0),e?this._status.processingStatus|=t:this._status.processingStatus-=this._status.processingStatus&t},e._insert=function(t){var e=t.elements,i=t.isAppend,n=t.hasChildren,r=t.groupKey,s=void 0===r?(new Date).getTime()+Math.floor(1e3*Math.random()):r;if(!this._isProcessing()&&0!==e.length){var o=nt.toItems(H(e,!0),s);this._insertItems({items:o,isAppend:i,hasChildren:n,groupKey:s})}},e._insertItems=function(t){var e=t.items,i=t.isAppend,n=t.hasChildren,r=t.groupKey,s=void 0===r?(new Date).getTime()+Math.floor(1e3*Math.random()):r;if(e.length){var o=this._itemManager[i?"appendGroup":"prependGroup"]({groupKey:s,items:e});if(!i){var a=this._infinite,u=a.getCursors(),h=u[0],c=u[1];a.setCursor("start",h+1),a.setCursor("end",c+1)}this._postLayout({fromCache:!1,groups:[o],items:o.items,newItems:o.items,isAppend:i,hasChildren:n,isTrusted:!1})}},e._recycle=function(t){var r=this,e=this.options,i=e.useRecycle,s=e.renderExternal;if(!i)return!1;var o=!1;return t.forEach(function(t){var e=t.start,i=t.end;if(!(-1===e||-1===i||i<e)){var n=r._itemManager.pluck("items",e,i);o=o||n.some(function(t){return t.mounted}),n.forEach(function(t){t.mounted=!1}),s||ot.removeItems(n)}}),o&&(this._requestGroups=[],this.trigger("render",{next:function(){}})),o},e._renderLoading=function(t){if(void 0===t&&(t=this._status.loadingStyle),this.isLoading()){var e=1===this._getLoadingStatus(),i=this._loadingBar[e?"append":"prepend"];if(i){var n=Z({position:"absolute"},t);for(var r in n)i.style[r]=n[r];this._status.loadingSize=this.options.horizontal?Q(i):$(i);var s=this.options.horizontal?"left":"top";if(!(s in n)){var o=e?this._getEdgeValue("end"):this._getEdgeValue("start")-this._status.loadingSize;i.style[s]=o+"px"}}}},e._updateItem=function(t){return!(!t||!t.el)&&(t.content=t.el.outerHTML,this.options.isEqualSize||function(t){t.orgSize=null,t.size=null}(t),this._renderer.updateSize([t]),!0)},e._setScrollPos=function(t){this._watcher.setScrollPos(this._watcher.getContainerOffset()+t)},e._scrollTo=function(t){this._watcher.scrollTo(this._watcher.getContainerOffset()+t)},e._postCache=function(t){var e=t.cache,i=t.isAppend,n=t.isTrusted,r=void 0===n||n,s=this.options.isConstantSize,o=nt.pluck(e,"items"),a=!0,u=o.filter(function(t){return t.orgSize&&t.orgSize.width?!s&&t.rect.top<-1e4:!(a=!1)});return this._postLayout({fromCache:a,groups:e,items:o,newItems:u,isAppend:i,isTrusted:r})},e._postLayout=function(t){var r=this,i=t.fromCache,e=t.groups,n=t.items,s=void 0===n?nt.pluck(e,"items"):n,o=t.newItems,a=t.isAppend,u=t.hasChildren,h=t.isTrusted;if(this._process(4),e.length){var c=this.options.renderExternal,l=this._renderer,f=new p,d=function(){s.forEach(function(t){t.mounted=!0}),r._renderManager.render(f,e,o,a).on("renderComplete",function(t){var e=t.start,i=t.end;r._setCursor(e,i)}).on("imageError",function(t){r.trigger("imageError",Z(t,{element:t.item.el}))}).on("layoutComplete",function(t){var e=t.items;r._process(4,!1),r._onLayoutComplete({items:e,isAppend:a,fromCache:i,isTrusted:h,useRecycle:!1})}).on("finish",function(t){var e=t.remove,i=t.layout;if(e.forEach(function(t){return r.remove(t,!1)}),i)r.layout(!1);else if(!r.isProcessing()&&r.options.useRecycle){var n=r._watcher.getScrollPos();r._infinite.recycle(n,a)}})};if(!u){if(c)return s.every(function(t){return t.mounted})?d():(this._requestGroups=e,this.trigger("render",{next:function(){u||ot.renderItems(s),d()}})),f;l.createAndInsert(s,a)}return d(),f}},e._requestAppend=function(t){var e=this,i=t.cache;this._isProcessing()||(i&&i.length?this._postCache({cache:i,isAppend:!0}):this.trigger("append",{isTrusted:!0,groupKey:this.getGroupKeys().pop()||"",startLoading:function(t){e.startLoading(!0,t)},endLoading:function(t){e.endLoading(t)}}))},e._requestPrepend=function(t){var e=this,i=t.cache;this._fit(this.options.useFit||!i||!i.length),this._isProcessing()||(i&&i.length?this._postCache({cache:i,isAppend:!1}):this.trigger("prepend",{isTrusted:!0,groupKey:this.getGroupKeys().shift(),startLoading:function(t){e.startLoading(!1,t)},endLoading:function(t){e.endLoading(t)}}))},e._onResize=function(){this.layout(!0)},e._setCursor=function(t,e){var i=this._infinite,n=i.getCursors(),r=n[0],s=n[1];i.setCursor("start",t),i.setCursor("end",e),this._recycle([{start:r,end:t-1},{start:e+1,end:s}])||(this._requestGroups=[],this.trigger("render",{next:function(){}}))},e._onCheck=function(t){var e=t.isForward,i=t.scrollPos,n=t.horizontal,r=t.orgScrollPos;this.trigger("change",{isForward:e,horizontal:n,scrollPos:i,orgScrollPos:r}),this._infinite.scroll(i)},e._onLayoutComplete=function(t){var e=this,i=t.items,n=t.isAppend,r=t.isTrusted,s=void 0!==r&&r,o=t.useRecycle,a=void 0===o?this.options.useRecycle:o,u=t.fromCache,h=void 0!==u&&u,c=t.isLayout,l=void 0!==c&&c,f=this._renderer.getViewSize();n?this.isLoading()&&this._renderLoading():this._fit();var d=this._watcher,p=d.getScrollPos();l||!a||this.isLoading()||this._infinite.recycle(p,n);var g=this._getEdgeValue("end");n&&(this._setContainerSize(g+this._status.loadingSize||0),"number"==typeof p&&0<p&&(v||this._scrollTo(p))),this.trigger("layoutComplete",{target:i.concat(),isAppend:!!n,isTrusted:s,fromCache:h,isLayout:l,isScroll:f<d.getContainerOffset()+g,scrollPos:p,orgScrollPos:d.getOrgScrollPos(),size:g,endLoading:function(t){e.endLoading(t)}}),this._infinite.scroll(p)},e._reset=function(){this._status={processingStatus:0,loadingSize:0,loadingStyle:{}}},t.VERSION="3.6.0-beta3",t}(p),bt=P,Tt=O,At=b,Gt=T,Kt=function(){function t(t){void 0===t&&(t={}),this.options=function(t,e){return Z({},I,t,e)}({margin:0,horizontal:!1,align:bt,itemSize:0},t),this._size=0,this._columnSize=0,this._columnLength=0,this._style=function(t){return U[t?E:_]}(this.options.horizontal)}var e=t.prototype;return e.append=function(t,e,i){return this._insert(t,e,!0,i)},e.prepend=function(t,e,i){return this._insert(t,e,!1,i)},e.layout=function(t,e){var n=this;void 0===t&&(t=[]),void 0===e&&(e=[]);var r,i=t.length&&t[0].items.length&&t[0].items[0];if(this.checkColumn(i),e.length!==this._columnLength){var s=0===e.length?0:Math.min.apply(Math,e);r=et(new Array(this._columnLength),s)}else r=e.slice();return t.forEach(function(t){var e=t.items,i=n._layout(e,r,!0);t.outlines=i,r=i.end}),this},e.setSize=function(t){return this._size=t,this},e.checkColumn=function(t){var e=this.options,i=e.itemSize,n=e.margin,r=e.horizontal?"height":"width",s=Math.floor(i||t&&t.size[r]||0)||0;(this._columnSize=s)?this._columnLength=Math.max(Math.floor((this._size+n)/(s+n)),1):this._columnLength=1},e._layout=function(t,e,i){for(var n,r=t.length,s=this.options.margin,o=this.options.align,a=this._style,u=a.size1,h=a.size2,c=a.startPos1,l=a.startPos2,f=this._columnSize,d=this._columnLength,p=this._size,g=p-(f+s)*d+s,v=i?"min":"max",_=e.slice(),m=e.slice(),y=0;y<r;++y){var z=Math[v].apply(Math,m)||0,S=m.indexOf(z),C=t[i?y:r-1-y],E=C.size;if(E){var w=E[u],M=E[h],x=i?z:z-s-w,I=x+w+s;-1===S&&(S=0);var L=(f+s)*S;o===Tt?L+=g/2:o===At?L+=g+f-M:o===Gt&&(d<=1?L+=g/2:L=(p-f)/(d-1)*S),C.rect=((n={})[c]=x,n[l]=L,n),m[C.column=S]=i?I:x}}return i||t.sort(function(t,e){var i=t.rect[c],n=t.rect[l],r=e.rect[c],s=e.rect[l];return i-r?i-r:n-s}),{start:i?_:m,end:i?m:_}},e._insert=function(t,e,i,n){void 0===t&&(t=[]),void 0===e&&(e=[]);var r=n?t:function(t){return t.map(function(t){return Z({},t)})}(t),s=e;return this._columnLength||this.checkColumn(t[0]),e.length!==this._columnLength&&(s=et(new Array(this._columnLength),e.length&&Math[i?"min":"max"].apply(Math,e)||0)),{items:r,outlines:this._layout(r,s,i)}},t}();return Ot.GridLayout=Kt,Ot});
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