mirror of
https://github.com/block/buzz.git
synced 2026-11-06 09:21:45 +00:00
b894fb02ff
## Summary Transparent PNG and GIF avatars render on a black background in mobile avatars and iOS notification avatars. Both load the relay's small thumbnail, which was always a JPEG with no alpha channel. [block/buzz#9003](https://github.com/block/buzz/pull/9003) makes relays write a `{sha}.thumb.webp` thumbnail that keeps transparency, alongside the `{sha}.thumb.jpg` that every relay writes. This PR loads the WebP first. - `MediaImage` with `preferThumbnail` tries `.thumb.webp`, then `.thumb.jpg`, then the original. Only a 404 moves on to the next source; any other failure still shows the error widget. Missing thumbnails are remembered as before, so later builds skip straight to the source that exists. - `BuzzNotificationAvatarLoader` follows the same order for notification avatars. Relays without 9003, and images uploaded before it, keep rendering from the JPEG as they do today. ### Screenshots A transparent PNG avatar rendered by `MediaImage` on the same relay, before and after (widget harness on an iOS simulator). | Before | After | | --- | --- | |  |  | ### Related issue AIDA-2308 (internal). The desktop counterpart is [block/buzz-app#2477](https://github.com/block/buzz-app/pull/2477). ### Testing - `missing thumbnails fall back to the JPEG, then the original` (`avatar_image_test.dart`): when the relay 404s every thumbnail, the avatar requests the WebP, then the JPEG, then the original. When the WebP fails with a 500, the avatar shows its fallback and requests neither the JPEG nor the original. - The relay thumbnail journey tests run against a relay that 404s `.thumb.webp`, so they cover the older-relay path end to end. - `BuzzNotificationAvatarLoaderTests` checks the WebP-then-JPEG thumbnail order for relay media, and that non-relay media gets no thumbnails. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Signed-off-by: John Tennant <jtennant@squareup.com> Co-authored-by: Simone <0828be588d5c9c4d092c5b1cf01761d5aef63d6b104807fd8e8284d517dd1a99@buzz.block.builderlab.xyz> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>