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bflatasticandClaude Opus 5.5 811ad1efd8 Fix #121: sandboxed WebAssembly plug-ins: object filters and live effects
VectorCraft had an Additional Plug-ins Folder preference but nothing loaded from it. Port
PhotoCraft's wasmi plug-in host (same sandbox, manifest and parameter schema) as the new
vectorcraft-plugins crate (L2), extended for vector documents:

- Object filters read the selected paths and compound paths as JSON (native PathData and
  Paint forms: geometry, fills, strokes, gradients, opacity) and return the objects to keep,
  change, add or delete; the output is validated in full and applied as one undo step
  (plugin.run). A failing plug-in leaves the document untouched.
- Live-effect plug-ins are geometry effects in the appearance stack (effect id
  plugin.<id>), re-evaluated (and cached) when the object or parameters change, editable,
  exported and baked by Expand Appearance; a missing plug-in leaves the geometry as is.
- plugin.list / info / run / install / remove / reload; the preference folder installs
  every *.wasm at startup and when it changes; File > Open of a .wasm installs it (web).
- Object > Plug-ins and Effect > Plug-ins menus with dialogs generated from the parameter
  schema (live preview), the Appearance panel's fx menu, docs/plugins.md, an original
  example plug-in (Desaturate, a Rust crate outside the workspace) and fuzzing of the
  plug-in boundary (engine/tests/plugin_fuzz.rs).

Tool plug-ins and paint-changing live effects are left for later (docs/plugins.md).

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-06 00:19:41 +07:00

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[package]
name = "vectorcraft-plugin-desaturate"
description = "Example VectorCraft WebAssembly object filter plug-in: Desaturate"
version = "1.0.0"
edition = "2024"
license = "MIT OR Apache-2.0"
publish = false
# Not a member of the VectorCraft workspace: it builds for wasm32-unknown-unknown only.
[workspace]
[lib]
crate-type = ["cdylib"]
[dependencies]
serde_json = "1"
[profile.release]
opt-level = "z"
lto = true
codegen-units = 1
panic = "abort"
strip = true