From f5a82152394fde4d8f740f664ab7737b82861618 Mon Sep 17 00:00:00 2001 From: cashmere Date: Tue, 28 Jul 2026 19:41:16 +0200 Subject: feat: GPUI desktop port foundation - scene crate: full project/scene/element model, serde round-trip proven against the web SerializedProject shape - transfer crate: .ocp zip container, cross-compat with web fflate archives proven in both directions - storage crate: filesystem project store replacing IndexedDB, .ocp import/export - media crate: ffmpeg-next 8 decoder (frames, audio, thumbnails, waveform summaries) - playback crate: wall-clock anchored, frame-rounded playback clock - gpu crate: native texture readback; compositor renders headless offscreen on Vulkan (spike test) - flake devshell: rust toolchain, GPUI native deps, ffmpeg dev, bindgen clang args; GPUI hello-world builds - port plan in notes/gpui-port.md --- rust/crates/commands/src/preview_tracker.rs | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 rust/crates/commands/src/preview_tracker.rs (limited to 'rust/crates/commands/src/preview_tracker.rs') diff --git a/rust/crates/commands/src/preview_tracker.rs b/rust/crates/commands/src/preview_tracker.rs new file mode 100644 index 00000000..4eb7484d --- /dev/null +++ b/rust/crates/commands/src/preview_tracker.rs @@ -0,0 +1,28 @@ +#[derive(Clone, Debug, Default)] +pub struct PreviewTracker { + snapshot: Option, +} + +impl PreviewTracker { + pub fn new() -> Self { + Self { snapshot: None } + } + + pub fn begin(&mut self, state: &T) { + if self.snapshot.is_none() { + self.snapshot = Some(state.clone()); + } + } + + pub fn is_active(&self) -> bool { + self.snapshot.is_some() + } + + pub fn snapshot(&self) -> Option<&T> { + self.snapshot.as_ref() + } + + pub fn end(&mut self) -> Option { + self.snapshot.take() + } +} -- cgit v1.3.1