overleaf/services/web/frontend/js/ide/pdfng/directives/pdfJsLoader.js

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/*
* Adapted from https://github.com/mozilla/pdfjs-dist/blob/e9492b7a725ec4edd466880223474f4295a5fb45/webpack.js
* The PDF.js worker needs to be loaded in a Web Worker. This can be done
* automatically with webpack via worker-loader.
* PDF.js has the above file to do this, however it uses the webpack loader
* module loading syntax, which prevents us from customising the loader.
* We need to output the worker file to the public/js directory, and so we need
* to customise the loader's options. However the rest of the file is identical
* to the one provided by PDF.js.
*/
/*
* Adapted from https://github.com/mozilla/pdfjs-dist/blob/e9492b7a725ec4edd466880223474f4295a5fb45/webpack.js
* The PDF.js worker needs to be loaded in a Web Worker. This can be done
* automatically with webpack via worker-loader.
* PDF.js has the above file to do this, however it uses the webpack loader
* module loading syntax, which prevents us from customising the loader.
* We need to output the worker file to the public/js directory, and so we need
* to customise the loader's options. However the rest of the file is identical
* to the one provided by PDF.js.
*/
var pdfjs = require('pdfjs-dist/build/pdf.js')
var PdfjsWorker = require('pdfjs-dist/build/pdf.worker.js')
if (typeof window !== 'undefined' && 'Worker' in window) {
pdfjs.GlobalWorkerOptions.workerPort = new PdfjsWorker()
}
module.exports = pdfjs