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bflatasticandClaude Opus 5.5
048cbc51b1
A heartbeat alone can't tell a crashed tab from one whose timers stopped in the background, so another tab could discard (or restore) the copies of a still-live document once its heartbeat went stale. - Recovery stores without locks can now announce an area for as long as the app runs (RecoveryStore::announce/announced). The web shell implements it with the browser's Web Locks (navigator.locks through js_sys::Reflect): a tab holds a lock named after its area, which the browser releases only when the tab is gone. Lock snapshots are refreshed every 10 s (once before the first frame); a snapshot over a minute old counts every area as held. - An area is gone only when no announcement holds it and its heartbeat is stale. Where the store can't tell (no Web Locks), the owner repairs: each heartbeat (also its first frame after a pause) and each recovery save write again the copies missing from its area, and a heartbeat newer than the one another tab wrote when taking the area over marks it running again. - MemoryStore::announcing models Web Locks in tests; engine and UI tests cover the issue's sequence. Native folder locks are unchanged. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
30 lines
1.0 KiB
Rust
30 lines
1.0 KiB
Rust
//! VectorCraft in the browser.
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//!
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//! Runs the same [`vectorcraft_ui_egui::VectorcraftApp`] as the desktop app through eframe's web
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//! runner (wgpu: WebGPU where available, WebGL2 otherwise). Build with `trunk build --release`
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//! from this directory; see `docs/development.md` ("Web build").
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//!
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//! Differences from the desktop app:
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//! - no TCP control server (browsers can't listen on sockets);
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//! - File → Open uses the browser file picker; bytes arrive asynchronously through
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//! `Services::inbox`;
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//! - Save / Export trigger a browser download;
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//! - dropped files are read asynchronously by `web::WebShell` and delivered through the inbox.
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//!
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//! URL query flag: `?webgl` forces the WebGL2 backend instead of WebGPU.
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#[cfg(target_arch = "wasm32")]
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mod locks;
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#[cfg(target_arch = "wasm32")]
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mod web;
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#[cfg(target_arch = "wasm32")]
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fn main() {
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web::start();
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}
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#[cfg(not(target_arch = "wasm32"))]
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fn main() {
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eprintln!("vectorcraft-web only runs in the browser: build it with `trunk build --release` in apps/vectorcraft-web");
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}
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