- it aims to avoid to loop forever when opening pdf in #13213;
- the idea is to consider subformSet as inexistent when running in the tree. So if we've subformA > subformSet > subformB then subformB will be visited as a direct child of subformA.
This is first of all consistent with all of the other (similar) factories, and secondly it will also simplify a future addition of a corresponding `NodeSVGFactory` (if that's ever deemed necessary).
Given that `DOMMatrix` is, unsurprisingly, not supported in Node.js the `createMatrix` helper function in `src/display/pattern_helper.js` is most likely broken in Node.js environments. It will obviously try to fallback to the `DOMSVGFactory`, however that isn't intended for Node.js usage and errors will be thrown.
Rather than trying to implement a `NodeSVGFactory`, this patch takes the easier route of just adding a `DOMMatrix` polyfill using: https://www.npmjs.com/package/dommatrix
This isn't done only for simplicity, but it'll become necessary anyway since the `createMatrix` helper function is only temporary and will be removed in the future.
- a checkbox or radio doesn't have to be rescaled when the container is large so give the extra space to the caption to avoid some word wrapping.
- when the caption is on the right, then put ui on the left as first element and so remove flex:row-reverse stuff.
Currently only the Foxit license-file is included, which is most likely just an oversight as far as I can tell.
Furthermore, to be able the tell the two license-files apart, the Foxit one is also renamed slightly.
We must force-fetch standard font data, when `disableFontFace = true` is set in the API, since otherwise rendering in e.g. the viewer is still broken (same as before PR 12726 landed).
*Please note:* We still need to also load standard font data for patterns and/or some text-rendering modes, however that will require larger changes so I figured that it cannot hurt to submit *this* patch right now.
*This implementation is basically a copy of the pre-existing `builtInCMapCache` implementation.*
For some, badly generated, PDF documents it's possible that we'll end up having to fetch the *same* standard font data over and over (which is obviously inefficient).
While not common, it's certainly possible that a PDF document uses *custom* font names where the actual font then references one of the standard fonts; see e.g. issue 11399 for one such example.
Note that I did suggest adding worker-thread caching of standard font data in PR 12726, however it wasn't deemed necessary at the time. Now that we have a real-world example that benefit from caching, I think that we should simply implement this now.
- Some js files contain scale factors for each glyph in order to rescale Liberation to have a final font with the correct width.
- A lot of XFA have some containers where their dimensions are based on their text content, so using default font from browser can lead to an almost unreadable pdf.
- a lot of xfa files are using Myriad pro or Arial fonts without embedding them and some containers have some dimensions based on those font metrics. So not having the exact same font leads to a wrong display.
- since it's pretty hard to find a replacement font with the exact same metrics, this patch gives the possibility to read glyf table, rescale each glyph and then write a new table.
- so once PR #12726 is merged we could rescale for example Helvetica to replace Myriad Pro.
Given that there's no fallback on the worker-thread, it shouldn't be necessary to initialize `CMapReaderFactory`/`StandardFontDataFactory` when `useWorkerFetch = true` is set.
Slightly unrelated, but this patch also ensures that the `useSystemFonts` default value only does the `isNodeJS` check in builds where that's actually necessary.
At this point in time, the `apiCompatibilityParams` is essentially unused with the sole exception of the `disableFontFace` handling for Node.js environments.
Given that `isNodeJS` is a constant now (originally it was a function), we can simply set the correct fallback value for `disableFontFace` directly in the API and clean-up the code a bit here.
