ddd-virtual-tree/dist/dddVirtualTree.umd.min.js

el-tree-v2 完全兼容`element-tree` 组件

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n=r.get(i);n||(n=[],r.set(i,n)),n.push(e),t||(e.nr.used=!1,e.position=-9999,this.$_views.delete(e.nr.key))},handleResize(){this.$emit("resize"),this.ready&&this.updateVisibleItems(!1)},handleScroll(e){this.$_scrollDirty||(this.$_scrollDirty=!0,requestAnimationFrame((()=>{this.$_scrollDirty=!1;const{continuous:e}=this.updateVisibleItems(!1,!0);e||(clearTimeout(this.$_refreshTimout),this.$_refreshTimout=setTimeout(this.handleScroll,100))})))},handleVisibilityChange(e,t){this.ready&&(e||0!==t.boundingClientRect.width||0!==t.boundingClientRect.height?(this.$emit("visible"),requestAnimationFrame((()=>{this.updateVisibleItems(!1)}))):this.$emit("hidden"))},updateVisibleItems(e,t=!1){const r=this.itemSize,i=this.gridItems||1,n=this.itemSecondarySize||r,o=this.$_computedMinItemSize,s=this.typeField,a=this.simpleArray?null:this.keyField,c=this.items,l=c.length,d=this.sizes,u=this.$_views,h=this.$_unusedViews,f=this.pool;let p,y,v,m,g,b;if(l)if(this.$_prerender)p=m=0,y=g=Math.min(this.prerender,c.length),v=null;else{const e=this.getScroll();if(t){let t=e.start-this.$_lastUpdateScrollPosition;if(t<0&&(t=-t),null===r&&t<o||t<r)return{continuous:!0}}this.$_lastUpdateScrollPosition=e.start;const n=this.buffer;e.start-=n,e.end+=n;let s=0;if(this.$refs.before&&(s=this.$refs.before.scrollHeight,e.start-=s),this.$refs.after){const t=this.$refs.after.scrollHeight;e.end+=t}if(null===r){let t,r,i=0,n=l-1,o=~~(l/2);do{r=o,t=d[o].accumulator,t<e.start?i=o:o<l-1&&d[o+1].accumulator>e.start&&(n=o),o=~~((i+n)/2)}while(o!==r);for(o<0&&(o=0),p=o,v=d[l-1].accumulator,y=o;y<l&&d[y].accumulator<e.end;y++);for(-1===y?y=c.length-1:(y++,y>l&&(y=l)),m=p;m<l&&s+d[m].accumulator<e.start;m++);for(g=m;g<l&&s+d[g].accumulator<e.end;g++);}else{p=~~(e.start/r*i);const t=p%i;p-=t,y=Math.ceil(e.end/r*i),m=Math.max(0,Math.floor((e.start-s)/r*i)),g=Math.floor((e.end-s)/r*i),p<0&&(p=0),y>l&&(y=l),m<0&&(m=0),g>l&&(g=l),v=Math.ceil(l/i)*r}}else p=y=m=g=v=0;y-p>j.itemsLimit&&this.itemsLimitError(),this.totalSize=v;const x=p<=this.$_endIndex&&y>=this.$_startIndex;if(this.$_continuous!==x){if(x){u.clear(),h.clear();for(let e=0,t=f.length;e<t;e++)b=f[e],this.unuseView(b)}this.$_continuous=x}else if(x)for(let N=0,$=f.length;N<$;N++)b=f[N],b.nr.used&&(e&&(b.nr.index=c.indexOf(b.item)),(-1===b.nr.index||b.nr.index<p||b.nr.index>=y)&&this.unuseView(b));const w=x?null:new Map;let S,_,k,C;for(let N=p;N<y;N++){S=c[N];const e=a?S[a]:S;if(null==e)throw new Error(`Key is ${e} on item (keyField is '${a}')`);b=u.get(e),r||d[N].size?(b?(b.nr.used=!0,b.item=S):(N===c.length-1&&this.$emit("scroll-end"),0===N&&this.$emit("scroll-start"),_=S[s],k=h.get(_),x?k&&k.length?(b=k.pop(),b.item=S,b.nr.used=!0,b.nr.index=N,b.nr.key=e,b.nr.type=_):b=this.addView(f,N,S,e,_):(C=w.get(_)||0,(!k||C>=k.length)&&(b=this.addView(f,N,S,e,_),this.unuseView(b,!0),k=h.get(_)),b=k[C],b.item=S,b.nr.used=!0,b.nr.index=N,b.nr.key=e,b.nr.type=_,w.set(_,C+1),C++),u.set(e,b)),null===r?(b.position=d[N-1].accumulator,b.offset=0):(b.position=Math.floor(N/i)*r,b.offset=N%i*n)):b&&this.unuseView(b)}return this.$_startIndex=p,this.$_endIndex=y,this.emitUpdate&&this.$emit("update",p,y,m,g),clearTimeout(this.$_sortTimer),this.$_sortTimer=setTimeout(this.sortViews,300),{continuous:x}},getListenerTarget(){let e=D()(this.$el);return!window.document||e!==window.document.documentElement&&e!==window.document.body||(e=window),e},getScroll(){const{$el:e,direction:t}=this,r="vertical"===t;let i;if(this.pageMode){const t=e.getBoundingClientRect(),n=r?t.height:t.width;let o=-(r?t.top:t.left),s=r?window.innerHeight:window.innerWidth;o<0&&(s+=o,o=0),o+s>n&&(s=n-o),i={start:o,end:o+s}}else i=r?{start:e.scrollTop,end:e.scrollTop+e.clientHeight}:{start:e.scrollLeft,end:e.scrollLeft+e.clientWidth};return i},applyPageMode(){this.pageMode?this.addListeners():this.removeListeners()},addListeners(){this.listenerTarget=this.getListenerTarget(),this.listenerTarget.addEventListener("scroll",this.handleScroll,!!L&&{passive:!0}),this.listenerTarget.addEventListener("resize",this.handleResize)},removeListeners(){this.listenerTarget&&(this.listenerTarget.removeEventListener("scroll",this.handleScroll),this.listenerTarget.removeEventListener("resize",this.handleResize),this.listenerTarget=null)},scrollToItem(e){let t;t=null===this.itemSize?e>0?this.sizes[e-1].accumulator:0:Math.floor(e/this.gridItems)*this.itemSize,this.scrollToPosition(t)},scrollToPosition(e){const t="vertical"===this.direction?{scroll:"scrollTop",start:"top"}:{scroll:"scrollLeft",start:"left"};let r,i,n;if(this.pageMode){const o=D()(this.$el),s="HTML"===o.tagName?0:o[t.scroll],a=o.getBoundingClientRect(),c=this.$el.getBoundingClientRect(),l=c[t.start]-a[t.start];r=o,i=t.scroll,n=e+s+l}else r=this.$el,i=t.scroll,n=e;r[i]=n},itemsLimitError(){throw setTimeout((()=>{console.log("It seems the scroller element isn't scrolling, so it tries to render all the items at once.","Scroller:",this.$el),console.log("Make sure the scroller has a fixed height (or width) and 'overflow-y' (or 'overflow-x') set to 'auto' so it can scroll correctly and only render the items visible in the scroll viewport.")})),new Error("Rendered items limit reached")},sortViews(){this.pool.sort(((e,t)=>e.nr.index-t.nr.index))}}};function F(e,t,r,i,n,o,s,a,c,l){"boolean"!==typeof s&&(c=a,a=s,s=!1);const d="function"===typeof r?r.options:r;let u;if(e&&e.render&&(d.render=e.render,d.staticRenderFns=e.staticRenderFns,d._compiled=!0,n&&(d.functional=!0)),i&&(d._scopeId=i),o?(u=function(e){e=e||this.$vnode&&this.$vnode.ssrContext||this.parent&&this.parent.$vnode&&this.parent.$vnode.ssrContext,e||"undefined"===typeof __VUE_SSR_CONTEXT__||(e=__VUE_SSR_CONTEXT__),t&&t.call(this,c(e)),e&&e._registeredComponents&&e._registeredComponents.add(o)},d._ssrRegister=u):t&&(u=s?function(e){t.call(this,l(e,this.$root.$options.shadowRoot))}:function(e){t.call(this,a(e))}),u)if(d.functional){const e=d.render;d.render=function(t,r){return u.call(r),e(t,r)}}else{const e=d.beforeCreate;d.beforeCreate=e?[].concat(e,u):[u]}return r}const U=B;var q=function(){var e,t,r=this,i=r.$createElement,n=r._self._c||i;return n("div",{directives:[{name:"observe-visibility",rawName:"v-observe-visibility",value:r.handleVisibilityChange,expression:"handleVisibilityChange"}],staticClass:"vue-recycle-scroller",class:(e={ready:r.ready,"page-mode":r.pageMode},e["direction-"+r.direction]=!0,e),on:{"&scroll":function(e){return r.handleScroll.apply(null,arguments)}}},[r.$slots.before?n("div",{ref:"before",staticClass:"vue-recycle-scroller__slot"},[r._t("before")],2):r._e(),r._v(" "),n(r.listTag,{ref:"wrapper",tag:"component",staticClass:"vue-recycle-scroller__item-wrapper",class:r.listClass,style:(t={},t["vertical"===r.direction?"minHeight":"minWidth"]=r.totalSize+"px",t)},[r._l(r.pool,(function(e){return n(r.itemTag,r._g({key:e.nr.id,tag:"component",staticClass:"vue-recycle-scroller__item-view",class:[r.itemClass,{hover:!r.skipHover&&r.hoverKey===e.nr.key}],style:r.ready?{transform:"translate"+("vertical"===r.direction?"Y":"X")+"("+e.position+"px) translate"+("vertical"===r.direction?"X":"Y")+"("+e.offset+"px)",width:r.gridItems?("vertical"===r.direction&&r.itemSecondarySize||r.itemSize)+"px":void 0,height:r.gridItems?("horizontal"===r.direction&&r.itemSecondarySize||r.itemSize)+"px":void 0}:null},r.skipHover?{}:{mouseenter:function(){r.hoverKey=e.nr.key},mouseleave:function(){r.hoverKey=null}}),[r._t("default",null,{item:e.item,index:e.nr.index,active:e.nr.used})],2)})),r._v(" "),r._t("empty")],2),r._v(" "),r.$slots.after?n("div",{ref:"after",staticClass:"vue-recycle-scroller__slot"},[r._t("after")],2):r._e(),r._v(" "),n("ResizeObserver",{on:{notify:r.handleResize}})],1)},H=[];q._withStripped=!0;const W=void 0,Y=void 0,X=void 0,G=!1,J=F({render:q,staticRenderFns:H},W,U,Y,G,X,!1,void 0,void 0,void 0);var Q={name:"DynamicScroller",components:{RecycleScroller:J},provide(){return"undefined"!==typeof ResizeObserver&&(this.$_resizeObserver=new ResizeObserver((e=>{requestAnimationFrame((()=>{if(Array.isArray(e))for(const t of e)if(t.target){const e=new CustomEvent("resize",{detail:{contentRect:t.contentRect}});t.target.dispatchEvent(e)}}))}))),{vscrollData:this.vscrollData,vscrollParent:this,vscrollResizeObserver:this.$_resizeObserver}},inheritAttrs:!1,props:{...R,minItemSize:{type:[Number,String],required:!0}},data(){return{vscrollData:{active:!0,sizes:{},validSizes:{},keyField:this.keyField,simpleArray:!1}}},computed:{simpleArray:K,itemsWithSize(){const e=[],{items:t,keyField:r,simpleArray:i}=this,n=this.vscrollData.sizes,o=t.length;for(let s=0;s<o;s++){const o=t[s],a=i?s:o[r];let c=n[a];"undefined"!==typeof c||this.$_undefinedMap[a]||(c=0),e.push({item:o,id:a,size:c})}return e},listeners(){const e={};for(const t in this.$listeners)"resize"!==t&&"visible"!==t&&(e[t]=this.$listeners[t]);return e}},watch:{items(){this.forceUpdate(!1)},simpleArray:{handler(e){this.vscrollData.simpleArray=e},immediate:!0},direction(e){this.forceUpdate(!0)},itemsWithSize(e,t){const r=this.$el.scrollTop;let i=0,n=0;const o=Math.min(e.length,t.length);for(let a=0;a<o;a++){if(i>=r)break;i+=t[a].size||this.minItemSize,n+=e[a].size||this.minItemSize}const s=n-i;0!==s&&(this.$el.scrollTop+=s)}},beforeCreate(){this.$_updates=[],this.$_undefinedSizes=0,this.$_undefinedMap={}},activated(){this.vscrollData.active=!0},deactivated(){this.vscrollData.active=!1},methods:{onScrollerResize(){const e=this.$refs.scroller;e&&this.forceUpdate(),this.$emit("resize")},onScrollerVisible(){this.$emit("vscroll:update",{force:!1}),this.$emit("visible")},forceUpdate(e=!0){(e||this.simpleArray)&&(this.vscrollData.validSizes={}),this.$emit("vscroll:update",{force:!0})},scrollToItem(e){const t=this.$refs.scroller;t&&t.scrollToItem(e)},getItemSize(e,t=void 0){const r=this.simpleArray?null!=t?t:this.items.indexOf(e):e[this.keyField];return this.vscrollData.sizes[r]||0},scrollToBottom(){if(this.$_scrollingToBottom)return;this.$_scrollingToBottom=!0;const e=this.$el;this.$nextTick((()=>{e.scrollTop=e.scrollHeight+5e3;const t=()=>{e.scrollTop=e.scrollHeight+5e3,requestAnimationFrame((()=>{e.scrollTop=e.scrollHeight+5e3,0===this.$_undefinedSizes?this.$_scrollingToBottom=!1:requestAnimationFrame(t)}))};requestAnimationFrame(t)}))}}};const Z=Q;var ee=function(){var e=this,t=e.$createElement,r=e._self._c||t;return r("RecycleScroller",e._g(e._b({ref:"scroller",attrs:{items:e.itemsWithSize,"min-item-size":e.minItemSize,direction:e.direction,"key-field":"id","list-tag":e.listTag,"item-tag":e.itemTag},on:{resize:e.onScrollerResize,visible:e.onScrollerVisible},scopedSlots:e._u([{key:"default",fn:function(t){var r=t.item,i=t.index,n=t.active;return[e._t("default",null,null,{item:r.item,index:i,active:n,itemWithSize:r})]}}],null,!0)},"RecycleScroller",e.$attrs,!1),e.listeners),[e._v(" "),r("template",{slot:"before"},[e._t("before")],2),e._v(" "),r("template",{slot:"after"},[e._t("after")],2),e._v(" "),r("template",{slot:"empty"},[e._t("empty")],2)],2)},te=[];ee._withStripped=!0;const re=void 0,ie=void 0,ne=void 0,oe=!1,se=F({render:ee,staticRenderFns:te},re,Z,ie,oe,ne,!1,void 0,void 0,void 0);var ae={name:"DynamicScrollerItem",inject:["vscrollData","vscrollParent","vscrollResizeObserver"],props:{item:{required:!0},watchData:{type:Boolean,default:!1},active:{type:Boolean,required:!0},index:{type:Number,default:void 0},sizeDependencies:{type:[Array,Object],default:null},emitResize:{type:Boolean,default:!1},tag:{type:String,default:"div"}},computed:{id(){if(this.vscrollData.simpleArray)return this.index;if(this.item.hasOwnProperty(this.vscrollData.keyField))return this.item[this.vscrollData.keyField];throw new Error(`keyField '${this.vscrollData.keyField}' not found in your item. You should set a valid keyField prop on your Scroller`)},size(){return this.vscrollData.validSizes[this.id]&&this.vscrollData.sizes[this.id]||0},finalActive(){return this.active&&this.vscrollData.active}},watch:{watchData:"updateWatchData",id(){this.size||this.onDataUpdate()},finalActive(e){this.size||(e?this.vscrollParent.$_undefinedMap[this.id]||(this.vscrollParent.$_undefinedSizes++,this.vscrollParent.$_undefinedMap[this.id]=!0):this.vscrollParent.$_undefinedMap[this.id]&&(this.vscrollParent.$_undefinedSizes--,this.vscrollParent.$_undefinedMap[this.id]=!1)),this.vscrollResizeObserver?e?this.observeSize():this.unobserveSize():e&&this.$_pendingVScrollUpdate===this.id&&this.updateSize()}},created(){if(!this.$isServer&&(this.$_forceNextVScrollUpdate=null,this.updateWatchData(),!this.vscrollResizeObserver)){for(const e in this.sizeDependencies)this.$watch((()=>this.sizeDependencies[e]),this.onDataUpdate);this.vscrollParent.$on("vscroll:update",this.onVscrollUpdate),this.vscrollParent.$on("vscroll:update-size",this.onVscrollUpdateSize)}},mounted(){this.vscrollData.active&&(this.updateSize(),this.observeSize())},beforeDestroy(){this.vscrollParent.$off("vscroll:update",this.onVscrollUpdate),this.vscrollParent.$off("vscroll:update-size",this.onVscrollUpdateSize),this.unobserveSize()},methods:{updateSize(){this.finalActive?this.$_pendingSizeUpdate!==this.id&&(this.$_pendingSizeUpdate=this.id,this.$_forceNextVScrollUpdate=null,this.$_pendingVScrollUpdate=null,this.computeSize(this.id)):this.$_forceNextVScrollUpdate=this.id},updateWatchData(){this.watchData&&!this.vscrollResizeObserver?this.$_watchData=this.$watch("item",(()=>{this.onDataUpdate()}),{deep:!0}):this.$_watchData&&(this.$_watchData(),this.$_watchData=null)},onVscrollUpdate({force:e}){!this.finalActive&&e&&(this.$_pendingVScrollUpdate=this.id),this.$_forceNextVScrollUpdate!==this.id&&!e&&this.size||this.updateSize()},onDataUpdate(){this.updateSize()},computeSize(e){this.$nextTick((()=>{if(this.id===e){const e=this.$el.offsetWidth,t=this.$el.offsetHeight;this.applySize(e,t)}this.$_pendingSizeUpdate=null}))},applySize(e,t){const r=~~("vertical"===this.vscrollParent.direction?t:e);r&&this.size!==r&&(this.vscrollParent.$_undefinedMap[this.id]&&(this.vscrollParent.$_undefinedSizes--,this.vscrollParent.$_undefinedMap[this.id]=void 0),this.$set(this.vscrollData.sizes,this.id,r),this.$set(this.vscrollData.validSizes,this.id,!0),this.emitResize&&this.$emit("resize",this.id))},observeSize(){this.vscrollResizeObserver&&this.$el.parentNode&&(this.vscrollResizeObserver.observe(this.$el.parentNode),this.$el.parentNode.addEventListener("resize",this.onResize))},unobserveSize(){this.vscrollResizeObserver&&(this.vscrollResizeObserver.unobserve(this.$el.parentNode),this.$el.parentNode.removeEventListener("resize",this.onResize))},onResize(e){const{width:t,height:r}=e.detail.contentRect;this.applySize(t,r)}},render(e){return e(this.tag,this.$slots.default)}};const ce=ae,le=void 0,de=void 0,ue=void 0,he=void 0,fe=F({},le,ce,de,he,ue,!1,void 0,void 0,void 0);function pe(e,t){e.component(`${t}recycle-scroller`,J),e.component(`${t}RecycleScroller`,J),e.component(`${t}dynamic-scroller`,se),e.component(`${t}DynamicScroller`,se),e.component(`${t}dynamic-scroller-item`,fe),e.component(`${t}DynamicScrollerItem`,fe)}const ye={version:"1.1.2",install(e,t){const r=Object.assign({},{installComponents:!0,componentsPrefix:""},t);for(const i in r)"undefined"!==typeof r[i]&&(j[i]=r[i]);r.installComponents&&pe(e,r.componentsPrefix)}};let ve=null;function me(e){for(let t=1,r=arguments.length;t<r;t++){let r=arguments[t]||{};for(let t in r)if(r.hasOwnProperty(t)){let i=r[t];void 0!==i&&(e[t]=i)}}return e}"undefined"!==typeof window?ve=window.Vue:"undefined"!==typeof n.g&&(ve=n.g.Vue),ve&&ve.use(ye);const ge="$treeNodeId",be=function(e,t){t&&!t[ge]&&Object.defineProperty(t,ge,{value:e.id,enumerable:!1,configurable:!1,writable:!1})},xe=function(e,t){return e?t[e]:t[ge]},we=(e,t)=>{let r=e;while(r&&"BODY"!==r.tagName){if(r.__vue__&&r.__vue__.$options.name===t)return r.__vue__;r=r.parentNode}return null};n(7467),n(4732),n(9577),n(6280),n(7913),n(7801);let Se=e=>{var t={};return e&&"[object Function]"===t.toString.call(e)};"object"===typeof Int8Array||!P().prototype.$isServer&&"function"===typeof docum