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0)",transitionDuration:this.duration+"ms",transitionProperty:this.duration?"all":"none"};return t("div",{class:[O(),this.className]},[t("ul",{ref:"wrapper",style:e,class:O("wrapper"),on:{transitionend:this.onTransitionEnd}},[this.genOptions()])])}}),j=Object(s["a"])("picker"),w=j[0],k=j[1],T=j[2];e["a"]=w({props:Object(n["a"])(Object(n["a"])({},l["a"]),{},{defaultIndex:{type:[Number,String],default:0},columns:{type:Array,default:function(){return[]}},toolbarPosition:{type:String,default:"top"},valueKey:{type:String,default:"text"}}),data:function(){return{children:[],formattedColumns:[]}},computed:{dataType:function(){var t=this.columns,e=t[0]||{};return e.children?"cascade":e.values?"object":"text"}},watch:{columns:{handler:"format",immediate:!0}},methods:{format:function(){var t=this.columns,e=this.dataType;"text"===e?this.formattedColumns=[{values:t}]:"cascade"===e?this.formatCascade():this.formattedColumns=t},formatCascade:function(){var t=this,e=[],i={children:this.columns};while(i&&i.children){var n=i.defaultIndex||+this.defaultIndex;e.push({values:i.children.map((function(e){return e[t.valueKey]})),className:i.className,defaultIndex:n}),i=i.children[n]}this.formattedColumns=e},emit:function(t){"text"===this.dataType?this.$emit(t,this.getColumnValue(0),this.getColumnIndex(0)):this.$emit(t,this.getValues(),this.getIndexes())},onCascadeChange:function(t){for(var e={children:this.columns},i=this.getIndexes(),n=0;n<=t;n++)e=e.children[i[n]];while(e&&e.children)t++,this.setColumnValues(t,e.children),e=e.children[e.defaultIndex||0]},onChange:function(t){"cascade"===this.dataType&&this.onCascadeChange(t),"text"===this.dataType?this.$emit("change",this,this.getColumnValue(0),this.getColumnIndex(0)):this.$emit("change",this,this.getValues(),t)},getColumn:function(t){return this.children[t]},getColumnValue:function(t){var e=this.getColumn(t);return e&&e.getValue()},setColumnValue:function(t,e){var i=this.getColumn(t);i&&(i.setValue(e),"cascade"===this.dataType&&this.onCascadeChange(t))},getColumnIndex:function(t){return(this.getColumn(t)||{}).currentIndex},setColumnIndex:function(t,e){var i=this.getColumn(t);i&&(i.setIndex(e),"cascade"===this.dataType&&this.onCascadeChange(t))},getColumnValues:function(t){return(this.children[t]||{}).options},setColumnValues:function(t,e){var i=this,n=this.children[t];n&&("cascade"===this.dataType?n.setOptions(e.map((function(t){return Object(r["d"])(t)?t[i.valueKey]:t}))):n.setOptions(e))},getValues:function(){return this.children.map((function(t){return t.getValue()}))},setValues:function(t){var e=this;t.forEach((function(t,i){e.setColumnValue(i,t)}))},getIndexes:function(){return this.children.map((function(t){return t.currentIndex}))},setIndexes:function(t){var e=this;t.forEach((function(t,i){e.setColumnIndex(i,t)}))},confirm:function(){this.children.forEach((function(t){return t.stopMomentum()})),this.emit("confirm")},cancel:function(){this.emit("cancel")},genTitle:function(){var t=this.$createElement,e=this.slots("title");return e||(this.title?t("div",{class:["van-ellipsis",k("title")]},[this.title]):void 0)},genToolbar:function(){var t=this.$createElement;if(this.showToolbar)return t("div",{class:k("toolbar")},[this.slots()||[t("button",{attrs:{type:"button"},class:k("cancel"),on:{click:this.cancel}},[this.cancelButtonText||T("cancel")]),this.genTitle(),t("button",{attrs:{type:"button"},class:k("confirm"),on:{click:this.confirm}},[this.confirmButtonText||T("confirm")])]])},genColumns:function(){var t=this,e=this.$createElement;return this.formattedColumns.map((function(i,n){return e(C,{attrs:{valueKey:t.valueKey,allowHtml:t.allowHtml,className:i.className,itemHeight:t.itemHeight,defaultIndex:i.defaultIndex||+t.defaultIndex,swipeDuration:t.swipeDuration,visibleItemCount:t.visibleItemCount,initialOptions:i.values},on:{change:function(){t.onChange(n)}}})}))}},render:function(t){var e=+this.itemHeight,i=e*this.visibleItemCount,n={height:e+"px"},s={height:i+"px"},r={backgroundSize:"100% "+(i-e)/2+"px"};return t("div",{class:k()},["top"===this.toolbarPosition?this.genToolbar():t(),this.loading?t(u["a"],{class:k("loading")}):t(),this.slots("columns-top"),t("div",{class:k("columns"),style:s,on:{touchmove:o["c"]}},[this.genColumns(),t("div",{class:k("mask"),style:r}),t("div",{class:[a["d"],k("frame")],style:n})]),this.slots("columns-bottom"),"bottom"===this.toolbarPosition?this.genToolbar():t()])}})}}]);
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