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refactor(web): drop legacy thumb migration

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Keep thumbnail storage forward-only. Old recent entries gain previews when their drawings are reopened.
This commit is contained in:
Hakan Seven 2026-07-29 01:11:17 +03:00
commit fc97104c81
2 changed files with 4 additions and 75 deletions
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9
crates/dwg-thumbnailer/src/lib.rs
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@ -41,14 +41,7 @@ pub fn extract_bytes(bytes: &[u8], max_dim: u32) -> Option<RgbaImage> {
let start = usize::try_from(base).ok()?;
let total = preview_container_len(bytes.get(start..start.checked_add(20)?)?)?;
let container = bytes.get(start..start.checked_add(total)?)?;
extract_container(container, base, max_dim)
}
/// Decode a preview container read from a DWG at `file_offset`. Exposing this
/// narrow entry point lets browser callers use `Blob.slice()` to migrate old
/// recent files without copying the entire drawing into memory.
pub fn extract_container(container: &[u8], file_offset: u64, max_dim: u32) -> Option<RgbaImage> {
let (format, data) = parse_preview_container(container, file_offset)?;
let (format, data) = parse_preview_container(container, base)?;
let img = decode(format, data)?;
Some(downscale(img, max_dim.max(1)))
}