byGalax
c3e0c47d32
Picker speed (Phase 1+2): - screen_sources.rs split into list_screen_sources (metadata only, returns in ~10ms) + capture_screen_source_thumbnail (single source, by id). ScreenSourcePicker now shows names + placeholders instantly and streams thumbnails in as each capture lands. Total wall-clock is bounded by the slowest source instead of the serial sum. - enumerate_screen_sources kept as a dead_code fallback so any rollout regression can switch the frontend back without code loss. Native capture (Phase 3): - New src-tauri/src/screen_capture.rs. start_screen_capture spawns a Rust thread per share that grabs frames via xcap, downscales to the user's quality preset, JPEG-encodes at Q72, and streams each frame through a Tauri Channel<FramePayload>. stop_screen_capture signals the stop flag and joins the worker. - Worker re-resolves the xcap handle inside the thread because xcap::Window holds a !Send HWND — passing the source id string across the thread boundary sidesteps that. - New lib/screenCapture.ts: decodes each frame into an ImageBitmap, draws to an offscreen canvas, exposes canvas.captureStream() as the MediaStream LiveKit publishes. Latest-wins frame queue drops stale frames when the JS side falls behind the Rust producer. 3s first- frame timeout so a silently-failing source (locked screen, DRM window) surfaces as a clean NativeCaptureUnavailable and we fall back to getDisplayMedia. - CallContext.startScreenShare takes the native path first when the picker provided a sourceId and system audio wasn't requested. The old chromeMediaSourceId attempt and final setScreenShareEnabled fallback stay in place for the audio case + non-Tauri runtimes. - stopScreenShare kills the native handle first, then unpublishes any manually-published ScreenShare/ScreenShareAudio tracks, then falls back to setScreenShareEnabled(false). disconnectRoom also stops the handle so we don't leak Rust threads across calls. Scope note: native path is video-only. System-audio capture needs WASAPI-loopback (Windows) or ScreenCaptureKit-audio (macOS); until those are wired, requesting audio in the picker falls through to the getDisplayMedia path and shows the OS picker for that one case. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
@chat-app/desktop
Tauri v2 + React + Vite + Tailwind desktop client (macOS / Windows / Linux).
Prerequisites
- Node 22+, pnpm 9+
- Rust + Cargo (install via https://rustup.rs)
- Platform build deps:
- macOS: Xcode Command Line Tools
- Linux:
libwebkit2gtk-4.1-dev,build-essential,libssl-dev(Debian/Ubuntu) - Windows: Microsoft C++ Build Tools + WebView2
Dev
# from repo root
pnpm install
pnpm desktop:dev # tauri dev — launches Vite + native window
pnpm desktop:build # production bundle per platform
Layout
src/— React app (Vite bundles intodist/).src-tauri/— Rust backend.main.rswires Tauri plugins.vite.config.ts— port1420, HMR on1421, aliases to shared packages.
Secure Storage
Session tokens + user private keys live in Stronghold (tauri-plugin-stronghold).
Local message history lives in SQLite (tauri-plugin-sql), DB file encrypted at rest.