WebOPFSService class
Service for OPFS file management
Features:
- Download large files (>2GB) directly to OPFS
- Check cache status
- Get stream readers for MediaPipe
- Storage quota management
Constructors
- WebOPFSService(OPFSInterop _opfs)
- WebOPFSService.fromWindow()
-
Factory constructor using global window.flutterGemmaOPFS
factory
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
clearAll(
) → Future< int> - Clear all models from OPFS (for testing/development)
-
deleteModel(
String filename) → Future< void> - Delete a model from OPFS
-
downloadToOPFS(
String url, String filename, {String? authToken, required void onProgress(int percentage), JSAny? abortSignal}) → Future< void> - Download a model to OPFS with progress tracking and cancellation support
-
getCachedModelSize(
String filename) → Future< int?> - Get the size of a cached model file
-
getStorageStats(
) → Future< Map< String, int> > - Get current storage statistics
-
getStream(
String filename) → Future< JSAny> -
Get a raw
ReadableStreamfor an OPFS-cached model (no.getReader()step). Returned object is a JSReadableStream. -
getStreamReader(
String filename) → Future< JSAny> - Get a ReadableStreamDefaultReader for streaming a model file
-
isModelCached(
String filename) → Future< bool> - Check if a model is cached in OPFS
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited