- it'll improve the way to resize images: diagonally (in keeping ratio between dimensions)
or horizontally/vertically.
- the resizer was almost invisible in HCM.
- make a resize undoable/redoable.
In order to reproduce the original issue:
- switch to freetext mode
- add a text somewhere
- double click outside and add some text
- repeat the previous step several times
no text is selected during the edition.
*Please note:* This only removes the preference itself, however both the viewer-option and the actual implementation is still available.
The `useOnlyCssZoom` functionality was only ever used, by default, in the PDF Viewer for the B2G/FirefoxOS project (which was abandoned years ago). Given that CSS-only zooming can easily make the document look blurry even at low zoom levels, this functionality was only intended for low-powered mobile devices.
Hence it seems reasonable to remove the `useOnlyCssZoom` preference now, since neither the default viewer nor the GeckoView-specific viewer uses this functionality.
By leveraging import maps we can get rid of *most* of the remaining `require`-calls in the `src/display/`-folder, since we should strive to use modern `import`-statements wherever possible.
The only remaining cases are Node.js-specific dependencies, since those seem very difficult to convert unless we start producing a bundle *specifically* for Node.js environments.
Localization of this button broke in PR 16340, which I assume was completely accidental, since the download-button now tries to access a l10n-id that was removed some time ago (see PR 15617).
Note how loading even the development viewer, i.e. http://localhost:8888/web/viewer-geckoview.html#locale=en-US, currently logs l10n-warnings on the `master` branch.
Having a `require` in this file has never made sense in e.g. the Firefox PDF Viewer and shouldn't really be necessary.
Possibly the idea was to facilitate some kind of third-party bundling, however the *built* `pdf.js` file has always exposed the API-contents globally.
Currently this class contains a few "special" code-paths for the COMPONENTS build-target, which normally wouldn't be a problem. However, in this particular case that means accessing code that we don't want to include unconditionally in all builds.
This is currently implemented using build-time `require`-calls which we nowadays want to avoid, and we should strive to remove all such cases from the code-base. (Generally speaking `import` is the future, and build-tools may not always play well with a mix of both formats.)
We can easily improve things here by using sub-classing for the COMPONENTS build-target, and then use the ability to re-name when exporting (to avoid breaking existing code).
There's no good reason for getting this option multiple times in the same method. Also, we can slightly re-factor how the `editorStampButton` is made visible.
This regressed in PR 16659, when the signature of the `PDFViewer.annotationEditorMode`-setter was changed, and it currently leads to an Error being thrown when exiting PresentationMode.
`PDFViewerApplication` reads from `location.hash` to initialize
`initialBookmark`. But when extensions/chromium/pdfHandler.js prepares
the redirect URL, the reference fragment is encoded instead of bare.
`rewriteUrlClosure` in `chromecom.js` is responsible for decoding the
URL, but that currently runs too late.
To fix this, update `initialBookmark` after rewriting the URL.
This was not a problem in the past because `rewriteUrlClosure` in
`chromecom.js` executed before the initialization of `initialBookmark`.
These options are completely unused in the PDF.js viewer, and given that the last update of the `GrabToPan`-code from upstream was in 2016 it shouldn't hurt to remove them.
This is something that I completely overlooked during review of PR 16593, since the idea is (obviously) that the viewer-components should be usable as-is without the user needing to manually pass in any *additional* parameters.
To support this we can very easily expose the current `FilterFactory`-instance on the `PDFPageProxy`-class[1], and if needed initialize the highlight-filters when initializing the page (again limited to the viewer-components).
- Modify the text and background colors in popup to fit a11y requirements
- Add a backdrop filter on clickable areas in using a svg filter mapping
canvas colors to Highlight and HighlightText ones.
It occurred to me that we can actually run this unit-test in Node.js environments by making use of the preprocessor to stub out the browser globals there.
Until now we've not actually had *any* tests that ensure that the *official* PDF.js-viewer API exposes the intended functionality, which means that things can easily break accidentally.
*Please note:* This unit-test cannot (easily) be run in Node.js-environments, since the `external/webL10n/l10n.js` file contains various browser-specific functionality.
- Change (most) fields/methods into private ones, since that's now supported.
- Tweak the constructor-parameters, and simplify the sandbox initialization w.r.t. the viewer components.
- Remove some unused function/method parameters.
- Slightly simplify the "updatefromsandbox"-handler by using local variables and inverting some conditions.
Rather than sprinkling pre-processor statements throughout the viewer-code, simply "disable" the relevant `PDFViewer` setters instead.
Also, given that the GeckoView-specific viewer doesn't have a sidebar we don't actually need to explicitly ignore a `pageMode` during loading.
This helper function was added almost two years ago, in PR 13696, and it still has only a single call-site. Furthermore, with the changes made in PR 16572 it also cannot hurt to reduce the size of the `web/l10n_utils.js` file slightly.
Note how the [`ChromeActions.getPreferences` method](https://searchfox.org/mozilla-central/rev/4e8f62a231e71dc53eb50b6d74afca21d6b254e9/toolkit/components/pdfjs/content/PdfStreamConverter.sys.mjs#497-530) returns the preferences as a string, which we then have to convert back into an Object in the viewer.
Back when that code was originally written it wasn't possible to send Objects from the platform-code, however that's no longer the case and we should be able to (eventually) remove this unnecessary string-parsing now.
*Please note that in order to prevent breakage we'll need to land these changes in stages:*
- Land this patch in mozilla-central, as part of regular the PDF.js updates.
- Change the return type in the `ChromeActions.getPreferences` method, in a mozilla-central patch.
- Remove the string-handling from the `FirefoxPreferences._readFromStorage` method.
Please note that we've never had any functionality in the viewer itself that *set* preferences, and we've thus only ever read them.
For the GENERIC viewer it obviously makes sense for the user to be able to modify preferences, e.g. via the console, but that doesn't really apply to the *built-in* Firefox PDF Viewer since preferences are already accessible via `about:config` there. Hence it does seems somewhat strange to expose, a limited part of, the Firefox preference system in this way when we're not even using it.
Note that the unused preference setting-code also include a fair amount of *additional* validation on the platform-side, such as limiting any possible preference changes to the `pdfjs.`-branch and also an explicit white-list of preference names[1], to make sure that this is safe; please see:
- https://searchfox.org/mozilla-central/rev/4e8f62a231e71dc53eb50b6d74afca21d6b254e9/toolkit/components/pdfjs/content/PdfStreamConverter.sys.mjs#458-495
- https://searchfox.org/mozilla-central/rev/4e8f62a231e71dc53eb50b6d74afca21d6b254e9/toolkit/modules/AsyncPrefs.sys.mjs#21-48
Assuming that this patch lands, I'll follow-up with a mozilla-central patch to remove the code mentioned above.
---
[1] This hard-coded list contains preferences that no longer exist, and also at least one (fairly obvious) typo.
This method was added only for consistency with the `register`-method, however it's never actually been used. To avoid including dead code in the builds, let's just remove the `unregister`-method for now.
*Please note:* If this method ever becomes useful, it'll be trivial to revert this commit.
With the changes in PR 16552 we can now move general translation into the `AnnotationLayer` itself, which should improve things ever so slightly in third-party implementations where the default viewer isn't used.
*This is something that I completely overlooked during review of PR 16552, despite leaving a l10n-related comment.*
The new l10n-handling of PopupAnnotations assume that the `AnnotationLayer` is always initialized with a l10n-instance, which might not actually be the case in third-party implementations where the default viewer isn't used.
To work-around that we'll now bundle, and fallback on, the existing `NullL10n`-implementation in GENERIC builds of the PDF.js library. This will only result in a slight file-size increase for the *built* `pdf.js` file, again limited to GENERIC builds, since the `web/l10n_utils.js` file has no dependencies.
Also, tweaks a couple of TESTING pre-processor checks to *only* include that code when running the reference tests.
- it'll help to be able to move popups on screen to let the user read the text
- popups won't inherit some properties from their parent:
- the popup can be misrendered if for example the parent has a clip-path property.
- add an outline to the popup when the parent is focused.
- hide a popup when it's clicked.
