* Resume EPUBs and comic books where the reader left off
The EPUB viewer (epub.html) accepts `?cfi=` and posts its location and
progress to the page that embeds it on every page turn. Progress comes from
the chapter and the page within it, rather than book.locations.generate(),
which stalls a Raspberry Pi on a large book. A search result's `loc` still
wins over the saved position.
The comic viewer opens at the saved page and saves each page shown.
Both resume on the doc page and in the file preview. The resume point is
decided once per opened file, so saves made while reading do not change the
EPUB viewer's URL and reload it. The doc page tracks only the FileGroup's
primary file; another format beside it is not tracked.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* EPUB/comic progress: never save a place the server would discard
The server treats a position at the start (the cover, under 1%) as not
started, and replaces the saved place with progress 0. Both viewers
reported the place they opened on, so opening a finished book un-finished
it, and peeking at the cover erased the reader's page.
- The comic viewer does not save the page it opens on, nor the cover; a
peek at the cover keeps the last page saved.
- The EPUB viewer posts nothing at the start of the book.
- Progress before the end is kept between 1% and 94% (resumableProgress), so
early pages of a long book and the last pages before the end keep their
position. Only the last page (comics) or the end (EPUB) is finished.
- Non-finite EPUB progress is ignored.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* ui: a PDF asks before it lights up a night-adapted eye
Night and amber pass media through an SVG color matrix so nothing a user opens costs
them their dark adaptation. It reaches everything drawn in our own document -- images,
video, canvases, and same-origin iframes like the EPUB viewer.
It does not reach a PDF, and the miss is not subtle. Chrome draws PDFs in its own
out-of-process viewer, which the compositor paints outside the parent's filter: the
computed style on the iframe really does say `filter: url(#wrolpi-night-red)` and the
page still arrives in full color. Measured in night mode on a device, a PDF covered
55% of the doc page in non-red pixels -- a full-brightness photograph of a blue sky --
while the chrome around it was correctly red. The preview modal measured 39.8%.
Tinting from outside was tried and does not work. A red `mix-blend-mode: multiply`
overlay above the iframe cannot see the plugin's pixels, so it stops blending and paints
flat opaque red: zero non-red pixels by measurement, document entirely obliterated.
So the PDF is withheld and the reader chooses. Nothing renders until they do; hiding it
with CSS would still load and paint the viewer, which is the flash being avoided.
Gated on whether the theme is CURRENTLY filtering, not on its name. A reader who turns
night's filter off has said they do not want this, and amber with its filter on has the
same unreachable PDF and does. Only PDFs: text and the EPUB viewer are documents of our
own and tint correctly, so gating them would hide something for no reason.
The gallery paragraph claiming the matrix remaps PDFs is corrected -- it was the one
place we told users something this measurement disproves.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* review: the reveal that outlived its document, and a test that proved nothing
Five review comments, all correct.
The bug: MediaGate was not keyed in FilePreview. The effect that rebuilds a preview sets
the modal to null and then to the new content in one pass, so React 18 batches both and
reconciles instead of unmounting -- the fiber survives, and a reader who revealed PDF A
would get PDF B in full color with no prompt. Keyed by url, which is what Docs already
did with activePath.
The test named "re-gates when filtering is turned back on" never revealed anything first,
so it went from gated=false to gated=true with `revealed` already false. That path never
reaches the reset effect: the test passed with the effect deleted. It now clicks Show
first, and fails without the effect.
The hide control moved above the media. A preview fills `calc(100dvh - 18.75rem)`, a
height calibrated with no room for a trailing button row, so a control after it lands
below the fold of a full-screen modal -- leaving the reader who just lit up their eyes
scrolling to find the way back.
Docs' embed -- the surface measured at 55% non-red -- had no contract test where
FilePreview had one. It has one now, asserting the gate wraps the iframe, keys per
document, and reads mediaFilterEnabled rather than the theme's name.
Gallery copy said "night and amber withhold it"; amber's filter is off unless asked for.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
