Sakurai/pdf.js
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Only call PDFDocumentProxy.getPermissions, in the viewer, when pdfjs.enablePermissions is set (PR 14362 follow-up)

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By making this API-call *unconditionally*, we introduce a (slight) delay in the initialization of *all* documents.
That seems quite unfortunate, since `pdfjs.enablePermissions` is off by default, and it thus seem better only do the API-call when actually needed; sorry about this!
This commit is contained in:
Jonas Jenwald 2021-12-11 20:41:41 +01:00
parent 6d8d37e93d
commit 63af15eb8f
1 changed files with 4 additions and 2 deletions
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6
web/base_viewer.js
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@ -490,7 +490,7 @@ class BaseViewer {
if (pdfDocument !== this.pdfDocument) {
return; // The document was closed while the permissions resolved.
}
if (!permissions || !this.#enablePermissions) {
if (!permissions) {
return;
}
@ -554,7 +554,9 @@ class BaseViewer {
const firstPagePromise = pdfDocument.getPage(1);
// Rendering (potentially) depends on this, hence fetching it immediately.
const optionalContentConfigPromise = pdfDocument.getOptionalContentConfig();
const permissionsPromise = pdfDocument.getPermissions();
const permissionsPromise = this.#enablePermissions
? pdfDocument.getPermissions()
: Promise.resolve();
// Given that browsers don't handle huge amounts of DOM-elements very well,
// enforce usage of PAGE-scrolling when loading *very* long/large documents.