This method has only a single call-site in the viewer, since it's used as a fallback, and the functionality can be moved into the `DownloadManager.download` method instead.
There's no specification for that (even if it's possible to have an idea from
the xfa specs) so we just want to hide them in order to avoid to display something
wrong.
This helper method is simpler/shorter than it originally was[1] and with recent refactoring so is the `render`-method, hence we can just inline this code now.
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[1] It used to e.g. dispatch the "textlayerrendered" event.
Part of this code is really old and pre-dates general availability of things such as `Blob` and `URL.createObjectURL`. To avoid having to duplicate the Blob-creation in the viewer, we can move this into `DownloadManager.download` instead.
Also, remove a couple of unnecessary `await` statements since the methods in question are synchronous.
When an image has a non-zero SMaskInData it means that the image
has an alpha channel.
With JPX images, the colorspace isn't required (by spec) so when we
don't have it, the JPX decoder will handle the conversion in RGBA
format.
This is a major version bump, and the changelog at
https://github.com/gulpjs/gulp/releases/tag/v5.0.0 indicates one
breaking change that impacts us, namely that streams are now by default
interpreted/transformed to UTF-8 encoding. This breaks `gulp.src` calls
that work on binary files such as images or CMaps, but is fortunately
easy to fix for us by disabling re-encoding for all `gulp.src` calls
(see https://github.com/gulpjs/gulp/issues/2764#issuecomment-2063415792
for more information). This restores the previous behavior of copying
the files as-is without Gulp performing any transformations to it, which
is what we want because Gulp is only used for bundling and we make sure
that the source files have the right encoding.
Instead of sending to the main thread an array of Objects for a list of points (or quadpoints),
we'll send just a basic float buffer.
It should slightly improve performances (especially when cloning the data) and use slightly less memory.
This parameter allows defining which point should remain
fixed while scaling the document. It can be used, for example,
to implement "zoom around the cursor" or "zoom around
pinch center".
The logic was previously implemented in `web/app.js`, but
moving it to the viewer scaling utilities themselves makes it
easier to implement similar zooming functionalities in
other embedders.
`updateScale` receives a `drawingDelay`, a `scaleFactor` and/or a number of `steps`.
If `scaleFactor` is a positive number different from `1` the current scale is multiplied by
that number. Otherwise, if `steps` if a positive integer the current scale is multiplied by
`DEFAULT_SCALE_DELTA` `steps` times. Finally, if `steps` is a negative integer, the
current scale is divided by `DEFAULT_SCALE_DELTA` `abs(steps)` times.
In order to share common parts between different dialogs, this patch
aims to slightly refactor the css in making it more generic.
This way it'll simplify adding a new dialog (we want to add a new one when
leaving an unsaved document).
After the re-factoring in PR 18104 there's now a *theoretical* risk that a pending `TextLayer` is never removed, which we can avoid by not registering it until `render` is invoked.
Note that this doesn't affect the viewer or tests, but if a third-party user calls `new TextLayer(...)` without a following call of either the `render`- or `cancel`-method we'd block global clean-up without this patch.
The `setTextContentSource` functionality is very old code, and was introduced years ago together with streaming of textContent.
By moving the `streamTextContent`-call into the `TextLayerBuilder` class we collect more functionality in one place and slightly reduce the amount of code needed.
