gmp
e019a950b1
Chromium owns scroll/compositor/lazy-load/image-cache; Rust owns scan/SQLite/thumbnail-decode behind a gallery:// custom protocol. Hard-won gotchas (see in-code comments): - Android: no native custom-scheme support → wry rewrites the URL to http://gallery.localhost/... (custom_protocol_workaround). The JS MUST request that form; the handler receives the reverted gallery://localhost/... and must strip the authority. - tauri_build::build() in build.rs must run UNCONDITIONALLY (build scripts run on the host: a cfg(target_os) gate silently disables it, which skips the rustc-cfg=mobile emission → no mobile_entry_point → .so with no JNI symbols → UnsatisfiedLinkError). - build.rs must list frontend files for rerun-if-changed (a dir-level directive only watches the dir mtime, not content edits) — the .so bakes the frontend at compile time and cargo otherwise ships stale UI with a 'successful' build. - logcat drops ~75% of lines under load: use the file trace. - fetch() is CORS-restricted (page origin http://tauri.localhost); <img> is not — add ACAO:* anyway. Emulator (5853 real files): grid renders, lazy thumbs via gallery:// with on-disk cache (87 files 35-72KB), FR log clean at 60Hz, viewer opens full-res with compositor-only pan/zoom. The single 'broken' cell is a 17-byte fake test JPEG (correct behavior). |
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