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Re-factor the setupFakeWorkerGlobal function (in src/display/api.js), and the loadFakeWorker function (in web/app.js)

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This patch reduces some duplication, by moving *all* fake worker loader code into the `setupFakeWorkerGlobal` function. Furthermore, the functions are simplified further by using `async`/`await` where appropriate.
This commit is contained in:
Jonas Jenwald 2019-12-19 18:11:56 +01:00
parent a5485e1ef7
commit 8519f87efb
2 changed files with 34 additions and 53 deletions
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17
web/app.js
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@ -1523,21 +1523,16 @@ if (typeof PDFJSDev === 'undefined' || PDFJSDev.test('GENERIC')) {
};
}
function loadFakeWorker() {
async function loadFakeWorker() {
if (!GlobalWorkerOptions.workerSrc) {
GlobalWorkerOptions.workerSrc = AppOptions.get('workerSrc');
}
if (typeof PDFJSDev === 'undefined' || !PDFJSDev.test('PRODUCTION')) {
return new Promise(function(resolve, reject) {
if (typeof SystemJS === 'object') {
SystemJS.import('pdfjs/core/worker').then((worker) => {
window.pdfjsWorker = worker;
resolve();
}).catch(reject);
} else {
reject(new Error('SystemJS must be used to load fake worker.'));
}
});
if (typeof SystemJS !== 'object') {
throw new Error('SystemJS must be used to load fake worker.');
}
window.pdfjsWorker = await SystemJS.import('pdfjs/core/worker');
return undefined;
}
return loadScript(PDFWorker.getWorkerSrc());
}