@docling/docling-components
Version:
Web components for displaying Docling output.
141 lines (128 loc) • 26.1 kB
JavaScript
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* @license
* Copyright 2019 Google LLC
* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2017 Google LLC
* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2017 Google LLC
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* @license
* Copyright 2017 Google LLC
* SPDX-License-Identifier: BSD-3-Clause
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* @license
* Copyright 2017 Google LLC
* SPDX-License-Identifier: BSD-3-Clause
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* @license
* Copyright 2017 Google LLC
* SPDX-License-Identifier: BSD-3-Clause
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* @license
* Copyright 2017 Google LLC
* SPDX-License-Identifier: BSD-3-Clause
*/const zt=Symbol();class Lt{get taskComplete(){return this.t||(this.i===1?this.t=new Promise((t,e)=>{this.o=t,this.h=e}):this.i===3?this.t=Promise.reject(this.l):this.t=Promise.resolve(this.u)),this.t}constructor(t,e,s){var o;this.p=0,this.i=0,(this._=t).addController(this);const i=typeof e=="object"?e:{task:e,args:s};this.v=i.task,this.j=i.args,this.m=i.argsEqual??qt,this.k=i.onComplete,this.A=i.onError,this.autoRun=i.autoRun??!0,"initialValue"in i&&(this.u=i.initialValue,this.i=2,this.O=(o=this.T)==null?void 0:o.call(this))}hostUpdate(){this.autoRun===!0&&this.S()}hostUpdated(){this.autoRun==="afterUpdate"&&this.S()}T(){if(this.j===void 0)return;const t=this.j();if(!Array.isArray(t))throw Error("The args function must return an array");return t}async S(){const t=this.T(),e=this.O;this.O=t,t===e||t===void 0||e!==void 0&&this.m(e,t)||await this.run(t)}async run(t){var n,c,h,d,p;let e,s;t??(t=this.T()),this.O=t,this.i===1?(n=this.q)==null||n.abort():(this.t=void 0,this.o=void 0,this.h=void 0),this.i=1,this.autoRun==="afterUpdate"?queueMicrotask(()=>this._.requestUpdate()):this._.requestUpdate();const i=++this.p;this.q=new AbortController;let o=!1;try{e=await this.v(t,{signal:this.q.signal})}catch(a){o=!0,s=a}if(this.p===i){if(e===zt)this.i=0;else{if(o===!1){try{(c=this.k)==null||c.call(this,e)}catch{}this.i=2,(h=this.o)==null||h.call(this,e)}else{try{(d=this.A)==null||d.call(this,s)}catch{}this.i=3,(p=this.h)==null||p.call(this,s)}this.u=e,this.l=s}this._.requestUpdate()}}abort(t){var e;this.i===1&&((e=this.q)==null||e.abort(t))}get value(){return this.u}get error(){return this.l}get status(){return this.i}render(t){var e,s,i,o;switch(this.i){case 0:return(e=t.initial)==null?void 0:e.call(t);case 1:return(s=t.pending)==null?void 0:s.call(t);case 2:return(i=t.complete)==null?void 0:i.call(t,this.value);case 3:return(o=t.error)==null?void 0:o.call(t,this.error);default:throw Error("Unexpected status: "+this.i)}}}const qt=(r,t)=>r===t||r.length===t.length&&r.every((e,s)=>!q(e,t[s]));function T(...r){return function(t){return v.DocItem(t)&&r.includes(t.label)}}var Bt={CodeItem:T("code"),ListItem:T("list_item"),PictureItem:T("picture"),SectionHeaderItem:T("section_header"),TableItem:T("document_index","table"),TextItem:T("caption","checkbox_selected","checkbox_unselected","footnote","page_footer","page_header","paragraph","reference","text")},v={Document(r){return"schema_name"in r&&r.schema_name==="DoclingDocument"},NodeItem(r){return"self_ref"in r},GroupItem(r){return v.NodeItem(r)&&(r.self_ref.startsWith("#/groups/")||r.self_ref==="#/body")},DocItem(r){return v.NodeItem(r)&&!v.GroupItem(r)},...Bt};function*Wt(r,t={}){r&&(yield*e(t.root??r.body));function*e(s,i=0){var o;if((!v.GroupItem(s)||t.withGroups)&&(v.DocItem(s)?(t.pageNo===void 0||(o=s.prov)!=null&&o.some(n=>n.page_no===t.pageNo))&&(yield[s,i]):yield[s,i]),!(v.PictureItem(s)&&!t.traversePictures))for(const n of s.children??[]){const c=Vt(r,n);v.NodeItem(c)&&(yield*e(c,i+1))}}}function Vt(r,t){return t.$ref.split("/").slice(1).reduce((s,i)=>s[i],r)}function Gt(r){return Object.values((r==null?void 0:r.pages)??{}).sort((t,e)=>t.page_no-e.page_no)}async function Ft(r,t={}){var h,d,p;let e;typeof r=="string"?e=await(await fetch(r)).json():typeof r=="object"&&v.Document(r)&&(e=r);const s=Gt(e),i=Array.from(Wt(e)).map(([a])=>a);let o=i;const n=new Set;if(typeof t.items=="string"){const a=new Set(t.items.split(",").map(l=>l.trim()).filter(l=>l.length>0));if(a.size>0){o=[];for(const l of i){const u=l.self_ref.split("/"),m=[];for(let f=2;f<u.length+1;f++)m.push(u.slice(0,f).join("/"));(h=l.prov)==null||h.forEach(f=>m.push(`#/pages/${f.page_no}`)),m.some(f=>a.has(f))?o.push(l):(d=l.prov)==null||d.forEach(f=>n.add(f.page_no))}}}else if(Array.isArray(t.items)){o=[];const a=new Set(t.items);for(const l of i)a.has(l)?o.push(l):(p=l.prov)==null||p.forEach(u=>n.add(u.page_no))}const c={};for(const a of s)c[a.page_no]=[];for(const a of o)for(const l of a.prov??[])c[l.page_no].push(a);return s.map(a=>({page:a,items:c[a.page_no],trimmed:n.has(a.page_no)}))}function Jt({page:r,items:t=[],pagenumbers:e,backdrop:s,itemPart:i,itemStyle:o,onclickitem:n}){if(r.image){const{size:h}=r,{width:d=1,height:p=1}=h,a=n?(l,u)=>n(l,r,u):void 0;return E`
<div part="page" class="page" @onclick=${l=>a==null?void 0:a(l)} role="tab">
<svg width=${r.image.size.width} viewBox="0 0 ${d} ${p}">
<!-- Suppressed backdrop image. -->
${s?E`
<image
class="backdrop"
href=${r.image.uri}
width=${d}
height=${p}
/>
<clippath id="clip-page-${r.page_no}">
${t.map(l=>{var m;const u=(m=l.prov)==null?void 0:m.find(f=>f.page_no===r.page_no);if(u){const{l:f,r:X,t:z,b:Y}=u.bbox;return E`<rect
x=${f}
y=${p-z}
width=${X-f}
height=${z-Y}
/>`}})}
</clippath>
`:""}
<!-- Foreground image. -->
<image
id="image"
href=${r.image.uri}
clip-path="url(#clip-page-${r.page_no})"
width=${d}
height${p}
/>
${t.map(l=>{var m;const u=(m=l.prov)==null?void 0:m.find(f=>f.page_no===r.page_no);if(u){const{l:f,r:X,t:z,b:Y}=u.bbox;return E`<rect
part=${"item"+(i?" "+i(r,l):"")}
style=${o==null?void 0:o(r,l)}
x=${f}
y=${p-z}
width=${X-f}
height=${z-Y}
vector-effect="non-scaling-stroke"
@onclick=${mt=>{mt.stopPropagation(),a==null||a(mt,l)}}
@onmouseenter={(e: MouseEvent) => {
const bounds = e.currentTarget.getBoundingClientRect();
// Sizes of surrounding areas: Top, right, bottom, left.
const areas = [
bounds.top * window.innerWidth,
(window.innerWidth - bounds.right) * window.innerHeight,
(window.innerHeight - bounds.bottom) * window.innerWidth,
bounds.left * window.innerHeight,
];
const maxArea = Math.max(...areas);
const quadrant = areas.findIndex(a => a === maxArea);
hovered = {
item,
bounds,
quadrant,
};
}}
/>`}})}
</svg>
${e?E`<header
part="page-number-top"
class="page-number-top"
title="Page ${r.page_no}"
>
${r.page_no}
</header>
<header
part="page-number-bottom"
class="page-number-bottom"
title="Page ${r.page_no}"
>
${r.page_no}
</header>`:""}
<!-- Tooltip. -->
${c()}
</div>
`}else return E`Invalid page image.`;function c(){return""}}const Kt=st`
.page {
width: fit-content;
max-width: 100%;
display: flex;
flex-direction: column;
align-items: center;
gap: 2px;
color: black;
}
`;var Zt=Object.defineProperty,Qt=Object.getOwnPropertyDescriptor,_=(r,t,e,s)=>{for(var i=s>1?void 0:s?Qt(t,e):t,o=r.length-1,n;o>=0;o--)(n=r[o])&&(i=(s?n(t,e,i):n(i))||i);return s&&i&&Zt(t,e,i),i};$.ImgPages=class extends j{constructor(){super(...arguments),this.src="",this.trim="pages",this._fetchTask=new Lt(this,{task:async([t,e])=>Ft(t,{items:e}),args:()=>[this.src,this.items]})}render(){return this._fetchTask.render({pending:()=>E`<p>...</p>`,complete:t=>E`
<div part="paged">
${t.filter(e=>!this.trim||e.items.length>0).map(({page:e,items:s})=>Jt({page:e,items:s,pagenumbers:this.pagenumbers!==void 0,backdrop:this.backdrop!==void 0,itemPart:this.itemPart,itemStyle:this.itemStyle,onclickitem:this.onclickitem}))}
</div>
`})}},$.ImgPages.styles=[st`
div {
width: fit-content;
max-width: 100%;
display: flex;
flex-direction: column;
align-items: center;
gap: 2px;
color: black;
}
`,Kt],_([y()],$.ImgPages.prototype,"alt",2),_([y()],$.ImgPages.prototype,"backdrop",2),_([y()],$.ImgPages.prototype,"items",2),_([y()],$.ImgPages.prototype,"pagenumbers",2),_([y()],$.ImgPages.prototype,"src",2),_([y()],$.ImgPages.prototype,"trim",2),_([y()],$.ImgPages.prototype,"itemPart",2),_([y()],$.ImgPages.prototype,"itemStyle",2),_([y()],$.ImgPages.prototype,"onclickitem",2),$.ImgPages=_([Mt("docling-img")],$.ImgPages),Object.defineProperty($,Symbol.toStringTag,{value:"Module"})});