fission-shell 0.2.0

Shared shell runtime contracts for hosting Fission applications
Documentation

fission-shell

Shared shell abstractions for the Fission UI framework.

fission-shell defines the platform-agnostic traits and types that every Fission shell backend (desktop, web, mobile, test) implements. It provides the Platform enum for identifying the current target, the VideoBackend and VideoPlayer traits for native video playback, and the VideoSurfaceFrame struct for compositing video surfaces into the Fission layout tree.

Key types

Type / Trait Description
Platform Enum with variants Desktop, Web, Mobile, and Test. Used for platform-conditional logic in widgets and renderers.
VideoBackend Trait for creating VideoPlayer instances and presenting video surface frames at their laid-out rectangles.
VideoPlayer Trait for controlling a single video stream -- play, pause, stop, seek, volume, rate, and polling for VideoEvent updates.
VideoSurfaceFrame Struct carrying a WidgetNodeId, a surface_id, and a LayoutRect so the compositor knows where to place a native video surface.
VideoEvent Enum for events emitted by a VideoPlayer: Ready { duration }, Ended, and Error(String).

Usage example

use fission_shell::{Platform, VideoBackend, VideoPlayer};

fn create_player(backend: &dyn VideoBackend) {
    let mut player = backend.create_player("https://example.com/video.mp4");
    player.play();
    // Poll for readiness
    for event in player.poll_events() {
        println!("{:?}", event);
    }
}

Status

Supported -- stable traits consumed by fission-shell-desktop, rendering backends, and the test harness.

License

MIT -- see the Fission repository for full documentation at https://fission.rs.