@nutrient-sdk/viewer/dist/nutrient-viewer-lib/core-pdf-worker.js

View and annotate PDF files in your web app. Full support for mobile and desktop. Runs in the browser using WASM.

/*!
 * Nutrient Web SDK 1.15.1 (https://www.nutrient.io/sdk/web)
 *
 * Copyright (c) 2016-2026 PSPDFKit GmbH. All rights reserved.
 *
 * THIS SOURCE CODE AND ANY ACCOMPANYING DOCUMENTATION ARE PROTECTED BY INTERNATIONAL COPYRIGHT LAW
 * AND MAY NOT BE RESOLD OR REDISTRIBUTED. USAGE IS BOUND TO THE PSPDFKIT LICENSE AGREEMENT.
 * UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS SUBJECT TO CIVIL AND CRIMINAL PENALTIES.
 * This notice may not be removed from this file.
 *
 * PSPDFKit uses several open source third-party components: https://www.nutrient.io/legal/acknowledgements/web-acknowledgements/
 */
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this.renderTile(e.request),n=this.renderCallbacks.get(r);n&&n(r,e.request.id,t)}catch(t){if(!e.cancelled){const n=this.errorCallbacks.get(r);n&&n(r,e.request.id,t)}}finally{this.activeRequests.delete(e.request.id)}}));for(let n=0;n<e.length;n++){const i=e[n],s=t[n];if(i.cancelled)continue;const o=this.renderCallbacks.get(r);o&&o(r,i.request.id,s),this.activeRequests.delete(i.request.id)}}catch(t){console.error("[SharedRenderQueue] Error processing request batch:",t);for(const n of e){if(!n.cancelled){const e=this.errorCallbacks.get(r);e&&e(r,n.request.id,t)}this.activeRequests.delete(n.request.id)}}}async renderTile(e){const{sourceInfo:t,options:r}=e,n=await this.renderChannel.render(t.pageIndex,t.pageSize,t.tileRect,{renderForPrinting:r.renderForPrinting,renderText:r.renderText,priority:r.priority||"high"});return{buffer:n,format:r.format||"bitmap",width:n.width,height:n.height}}async renderTiles(e){const{sourceInfo:t,options:r}=e[0],n=e.map(e=>e.sourceInfo.tileRect);return(await this.renderChannel.renderTiles(t.pageIndex,t.pageSize,n,{renderForPrinting:r.renderForPrinting,renderText:r.renderText,priority:r.priority||"high"})).map(e=>({buffer:e,format:r.format||"bitmap",width:e.width,height:e.height}))}calculatePriority(e){let t=0;"high"===e.options.priority&&(t-=1e3),e.targetInfo.isVisible&&(t-=500),t-=10*e.viewportRenderUpdateId;return t+=100*Math.abs(e.targetInfo.scale-e.targetInfo.targetScale),t}cancelStaleRequests(e,t){for(const[r,n]of this.queuedRequests.entries())n.sessionId===e&&n.request.viewportRenderUpdateId<t&&(n.cancelled=!0,this.queuedRequests.delete(r));for(const r of this.activeRequests.values())r.sessionId===e&&r.request.viewportRenderUpdateId<t&&(r.cancelled=!0)}}h(new class{constructor(){n(this,"sharedRenderQueue",null),n(this,"sharedRenderQueuePromise",null),n(this,"sessionCallbacks",new Map),n(this,"sessionErrors",new Map),n(this,"renderChannel",null),n(this,"sessionCounter",0),n(this,"viewportUpdateCounter",0)}async setupRenderMessageChannel(e){this.renderChannel=d(e)}async getSharedRenderQueue(){this.sharedRenderQueuePromise||(!function(e,t){if(!e)throw new E(`Assertion failed: ${t||"Condition not met"}\n\nFor further assistance, please go to: https://www.nutrient.io/support/request`)}(this.renderChannel,"Setup render channel first"),this.sharedRenderQueuePromise=I.create(this.renderChannel));const e=await this.sharedRenderQueuePromise;return this.sharedRenderQueue=e,e}async beginRenderer(e,t,r,n,i){const s=await this.getSharedRenderQueue(),o=`page-${e}-${this.sessionCounter++}`;return this.sessionCallbacks.set(o,n),this.sessionErrors.set(o,i),s.setCallbacks(o,this.handleTileReady.bind(this),this.handleTileError.bind(this)),o}async requestTiles(e,t){if(!this.sharedRenderQueue)return void console.warn("SharedRenderQueue not initialized");const r=++this.viewportUpdateCounter,n=t.map(e=>({id:e.id,viewportRenderUpdateId:r,sourceInfo:{pageIndex:e.pageIndex,pageSize:e.pageSize,tileRect:e.tileRect},targetInfo:{scale:e.mip,targetScale:e.mip,isVisible:!0,canvasRect:{left:0,top:0,width:e.tileRect.width,height:e.tileRect.height}},options:{renderAnnotations:e.options.renderAnnotations,renderText:e.options.renderText,format:"bitmap",priority:e.options.priority,disableBatch:e.options.disableBatch}}));this.sharedRenderQueue.enqueue(e,n)}async cancelTiles(e,t){this.sharedRenderQueue&&this.sharedRenderQueue.cancel(e,t)}async endRenderer(e){this.sessionCallbacks.delete(e),this.sessionErrors.delete(e),this.sharedRenderQueue?.cancelSession(e)}handleTileReady(e,t,r){const n=this.sessionCallbacks.get(e);n&&n(e,t,r)}handleTileError(e,t,r){const n=this.sessionErrors.get(e);n&&n(e,t,r)}})})(),{}})());