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fix(wasm): make the web build actually run in the browser

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With the wasm bundle building, get it rendering in a browser:

- Enable iced `webgl` so wgpu uses WebGL2 where WebGPU is absent
  (e.g. Firefox by default), and `fira-sans` so UI text has an
  embedded font (the web has no system fonts) — without it every
  label was blank.
- Replace `std::time::Instant` with `iced::time::Instant` (web-safe);
  `Instant::now()` panics ("time not implemented") on wasm and crashed
  at boot via the command line.
- Skip the batched-hatch pipeline on wasm: its bind group needs
  vertex-stage storage buffers, which WebGL2 lacks (validation error
  on "New drawing"). Fields become Option; upload/draw guard on them.
  Hatches don't draw on the web for now; everything else does.
- Fix the trunk feature flag (`data-cargo-no-default-features`) and
  ignore the `dist/` build output.

Native build + 75 tests unchanged.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-06-16 17:53:56 +03:00
commit c49ad887b8
11 changed files with 55 additions and 14 deletions
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2
index.html
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@ -10,7 +10,7 @@
</style>
<!-- Trunk builds the wasm32 binary without the `solid3d` feature (no 3-D
solid kernel / vtkio C deps on the web). See issue #45. -->
<link data-trunk rel="rust" data-bin="OpenCADStudio" data-no-default-features />
<link data-trunk rel="rust" data-bin="OpenCADStudio" data-cargo-no-default-features />
</head>
<body></body>
</html>