The panels and dialogs draw in their own egui families (`ui`,
`ui-semibold`, `mono`), and egui panics drawing text in a family no
font is bound to. Only `theme::install_fonts` binds them, and only
`VectorcraftApp::logic` calls it, on its first frame. An embedder that
draws the panels or dialogs itself (`dialogs::show`, a panel's `ui`)
on its own context, without `logic`, panics on the first semibold
title it draws, an effect dialog's for one. Calling `install_fonts`
avoids that, but it embeds the interface's five faces (about 2 MB)
whatever the embedder wants: today such an embedder keeps them out of
its binary only by never calling it, so that the linker drops them.
vectorcraft-ui-egui gets an `interface-fonts` feature, on by default,
that embeds those faces. Without it `install_fonts` binds the same
three families to egui's built-in fonts, so an embedder can always
call it. Those lack some symbols the panels show (→ ▾ ● ✓), which the
docs say. With the feature, `install_fonts` installs exactly what it
did before: the same font data and the same family stacks.
`tests/install_fonts.rs` draws an effect dialog on a context only
`install_fonts` prepared, and checks the face at the head of each
family in both configurations. `cargo xtask ci`'s `no-bundled-fonts`
step runs it without default features and lints the crate that way.
Without the `install_fonts` call, or without the semibold binding,
both tests fail with egui's "FontFamily::Name(\"ui-semibold\") is not
bound to any fonts". The two lib tests about the interface faces are
adjusted: the graphics-loss test checks a family install_fonts binds,
and the catalogs' glyph coverage test needs `interface-fonts`.
docs/development.md says when an embedder calls `install_fonts`, and
that it replaces the context's font definitions.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Selecting other art drops Puppet Warp pins, ending Edit Text clears the
flat view, and a font scan lays type out again. None of these makes an
undo step or counts as an edit to save, but each one replaced the
document. A background save that finished afterwards compared the
document with the one it wrote by pointer, so the document stayed
marked modified. Data Recovery also wrote a new copy of a document whose
pins had been dropped.
DocState now records the documents that these changes replaced, and
DocState::same_content counts them as having the same content. The
modified flag, the end of a background save and Data Recovery use it.
After Edit Text ends, an undo state that was the saved one stays the
saved one.
When the browser dropped the page's WebGPU device or WebGL context, the
editor kept running but nothing it drew reached the screen: Chrome and
WebKit showed a frozen, stale canvas and Firefox a blank page, while
edits and Save went on.
- ui-egui: new `graphics` module. `GraphicsLoss` carries a loss report
from any thread (wgpu's device-lost callback, the canvas's
`webglcontextlost` event) to the UI thread. `VectorcraftApp::
graphics_lost` writes Data Recovery copies of the modified documents at
once. The app now notices when the host hands it a new egui context and
uploads everything again (fonts and theme, the canvas, place cursor
thumbnails); every per-thread texture cache (layer, symbol, swatch,
style, asset and glyph thumbnails, previews, font samples, Navigator,
Flattener Preview) is a `TexCache` that empties for a new context.
Without this, the moved app drew stale or wrong textures and egui
panicked on its missing font families.
- web: the shell watches both loss signals; on a loss it puts a fresh
canvas in place of the dead one and starts the same `WebRunner` again,
handing over the same app (documents, undo, panels), with services made
for the new context and a status-bar note. If no new graphics can be had
(or after three losses) it removes the stale canvas, lets go of the
recovery copies and says to reload.
- engine: `recovery::leave` lets go of a session's area but keeps its
copies, so the reloaded page offers them at once instead of after the
heartbeat goes stale.
- desktop: eframe can't give a window a new device, so a lost device
(driver reset) is logged, the copies are written and the status bar says
to save and restart; closing then skips the Save Changes question it
can't show.
- Tests: loss reporting across threads, `TexCache` emptying, the app
uploading the canvas, a cached preview, theme and fonts again in a new
context (fails without the fix), copies written on loss, and
`recovery::leave` offering copies at once with both lock and heartbeat
stores. docs/development.md (web section) and ROADMAP updated.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
