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https://github.com/storytold/vectorcraft.git
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gniax
51673cd098
Read pen and finger Pointer Events in the web shell (capture phase) instead of eframe's touch handlers, which can't tell a pen from a finger and see every touch twice. The pen drives the pointer with its pressure and hovers; fingers are touch contacts for pinch, two-finger pan and undo/redo taps. Once a pen has been seen (remembered in localStorage), a finger or a resting palm never presses a tool on the canvas, and a pen landing cancels fingers already down. A long press drops the tool press and opens the context menu. The page no longer scrolls, zooms or selects under touch, and the canvas stays inside the safe areas of a full-screen app.
37 lines
1.4 KiB
Rust
37 lines
1.4 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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//! - pen and finger input is read from Pointer Events by `pencil` (Apple Pencil pressure and
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//! hover, palm rejection, fingers navigate once a pen has been seen).
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//!
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//! URL query flags: `?webgl` forces the WebGL2 backend instead of WebGPU; `?lang=es` (any
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//! language code) stands in for the browser's languages when the interface language is Automatic.
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#[cfg(target_arch = "wasm32")]
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mod fonts;
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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 pencil;
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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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