This button is *only* used in the GENERIC viewer, and will currently be visible either in the main or secondary toolbars (depending on the viewer width).
To simplify upcoming changes, and to avoid then having to complicate the relevant CSS rules unnecessarily, let's place the "Open file"-button permanently in the secondary toolbar instead.
(Note that the GENERIC viewer also, since five years, supports drag-and-drop in order to open local files.)
The `fieldObjects`-getter is implemented in the `PDFDocument` class, which means that the `this._localIdFactory`-property that we pass to `AnnotationFactory.create` doesn't actually exist.
The reason that this hasn't caused any bugs, that I'm aware of, is that all /Fields-entries need to be References to actually make sense.
The `fieldObjects`-getter itself is called, from `src/core/worker.js`, in a way that'll ensure that any `MissingDataException`s are handled. However the problem is that the actual data-lookups in `fieldObjects` and `#collectFieldObjects` are done inside of a Promise, which means that `MissingDataException`s won't be handled and parsing could thus break.
To address this we change all data-lookups to be asynchronous instead.
The `viewerCssTheme`-implementation has always been somewhat hacky, and now it's also *partially* broken ever since we've started using CSS nesting.
Trying to support nested media queries would thus require a lot more parsing of the CSS rules, which seems inefficient and thus generally undesirable.[1]
As discussed on Matrix, let's try to remove the `viewerCssTheme`-option and see if there's any (significant) fallout from this.
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[1] If this option is brought back, it seems to me that it (in Firefox) should probably be set through the platform-code that handles theming.
Depending on the structure of the outline we could potentially need to expand a few levels, especially in long PDF documents, hence it cannot hurt to pause translation in that case as well.
With the changes in PR 17208, where browser-preferences are now handled as "regular" viewer-options, we can tweak the definition of `canvasMaxAreaInBytes` to slightly simplify things in the `PDFViewerApplication.open` method.
Hopefully this will allow us to catch bugs in new Node.js versions earlier, rather than having to wait for bug reports.
Given that `CompressionStream` is (currently) only potentially used when saving a *modified* PDF document, which is unlikely to be a common use-case in Node.js environments, let's just disable the affected unit-test for now.
Given that this branch is only necessary in development mode and *during* building, but is never actually used in the final viewer-bundles, we can utilize the pre-processor to ignore this code.
Currently we *synchronously* fetch a number of browser preferences/options, from the platform code, during the viewer respectively PDF document initialization paths.
This seems unnecessary, and we can re-factor the code to instead include the relevant data when fetching the regular viewer preferences.
The active LTS version is now based on Node.js version 20, hence let's update the relevant workflows to use that one instead; see https://en.wikipedia.org/wiki/Node.js#Releases
Given that we still support Node.js version 18, i.e. the maintenance LTS version, in the PDF.js library we'll keep testing both versions in GitHub Actions to prevent regressions.
I noticed the following warning in the GitHub Actions workflow logs:
`Configuration file not found: .github/linter_config.yml`
The configuration file is called `fluent_linter_config.yml` instead, so
this commit fixes the path so it points to the correct file.
Fixes 487816b.
The current stable version of Python is Python 3.12, see
https://www.python.org/downloads, so we should switch to that since
Python 3.10 is older and only receives security updates.
This commit tweaks the Fluent linter workflow to match the other
workflow files we have, so we make sure the steps have a newline between
them for better readability and align names and descriptions of steps
with how they are called in the other workflow files we have.
There are environments that include *incomplete* polyfills for the `navigator`-object, which may thus cause the PDF.js library to break.
Despite that clearly not being our fault, it may still result in bug reports filed against the PDF.js project; see e.g. 15728.
Currently this even seem to affect *the latest* version of Node.js; see e.g. [here].
*Please note:* Thanks to the pre-processor none of these changes affect the Firefox PDF Viewer, however it does add "overhead" when working with and reviewing the affected code (which is why I'm not crazy about this).
