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pdf-viewer: various visual and usability changes

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- fix page nav buttons, smaller default pages, violet bg

  - Build toolbar after renderAllPages so it queries existing canvases;
    query canvases fresh in the scroll handler so page tracking works
    after re-render (zoom in/out).
  - Default data-pdf-scale 0.85 (JS fallback 0.8) so pages are a bit
    smaller by default.
  - Add dark transparent violet background (accent-secondary 22%) to
    .pdf-expanded, behind the pages.

  - expand to fill column top-to-bottom via CSS flex

    Use a flex chain (.tfe-files flex:1, .tfe-file-item:has(.pdf-expanded)
    flex:1) so the expanded PDF wrapper fills the right column from under
    the header to the bottom of the viewport, instead of viewport-based
    clamp math that didn't account for the header height.

  - fill right column, center pages, freeze column on expand

  The expanded viewer now stays inside the right column instead of
  growing the page: the column switches to overflow:hidden while the
  PDF panel scrolls internally. Pages are centered horizontally via
  flexbox align-items: center.

  - fix toolbar not full-width, hide sibling file items

  The toolbar was constrained by the parent's align-items:center; fixed
  with align-self:stretch. Hiding sibling .tfe-file-item elements when
  a PDF is expanded prevents them from rendering above the overlay.

  - disable overscroll on expanded view

  - use overscroll-behavior-y on container, none on toolbar

  - disable body overscroll via .pdf-viewer-open class

  - mobile full-viewport, iframe matches pdf height

  - mobile overlay above everything via position:fixed

  - opaque dark-violet bg on mobile overlay

  - tfe: add 'Open in new tab' link above website iframes

  - trim column padding when expanded for more vertical space

  - 5% zoom increments, subtle padding on expanded column

  - prevent horizontal overflow/overscroll
This commit is contained in:
Pontoporeia
2026-07-08 22:41:52 +02:00
parent 82d8eff512
commit 20873f94af
4 changed files with 99 additions and 18 deletions
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TODO.md
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View File
@@ -29,3 +29,8 @@
- [x] Improve h1, h2, h3 size difference in base.css heading scale
- [x] Rework TFE page desktop layout: two columns 35vw/1fr, left = author/title/meta/synopsis, right = files, media 100% width; columns scroll independently, content fits 100vw; no bottom padding on main; add &scrollbar=0 to PDF iframe URLs
- [x] 'Promoteur·ice ULB' remplacé par 'Promoteur·ice université' (changement juste l'étiquette)
- [x] PDF viewer: fix page navigation buttons (prev/next) — build toolbar after canvases exist & query canvases fresh in scroll handler
- [x] PDF viewer: render pages smaller by default (0.85× scale)
- [x] PDF viewer: add dark transparent violet background behind pages when expanded
- [x] pdf-viewer: expand to fill right column (not whole page), center pages, freeze column on expand
- [x] pdf-viewer: fix toolbar width (align-self:stretch), hide sibling file items when expanded