WebFileSystemService class
Web implementation of FileSystemService using URL-based storage
This implementation doesn't actually store files locally (web has no local file system). Instead, it maintains a registry of URLs that MediaPipe can fetch directly.
Features:
- URL registry for model paths (in-memory)
- No actual file downloads (MediaPipe fetches URLs directly)
- Asset path resolution for web
- Memory-efficient (stores URLs, not file data)
Platform: Web only
- Implemented types
Constructors
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
-
clearAllUrls(
) → void - Clears all URL mappings (web-specific extension)
-
deleteFile(
String path) → Future< void> -
Deletes a file at the given path
override
-
fileExists(
String path) → Future< bool> -
Checks if a file exists at the given path
override
-
getAllUrls(
) → Map< String, String> - Gets all registered URLs (web-specific extension)
-
getBundledResourcePath(
String resourceName) → Future< String> -
Gets the path to a bundled native resource
override
-
getFileSize(
String path) → Future< int> -
Gets the size of a file in bytes
override
-
getTargetPath(
String filename) → Future< String> -
Gets the target path for storing a model file with given filename
override
-
getUrl(
String filename) → String? - Gets the URL for a registered model (web-specific extension)
-
isBlobUrl(
String url) → bool - Checks if a URL is a blob URL
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
readFile(
String path) → Future< Uint8List> -
Reads data from a file at the given path
override
-
registerExternalFile(
String filename, String externalPath) → Future< void> -
Registers an external file path (for FileSource)
override
-
registerUrl(
String filename, String url) → void - Registers a URL for a model (web-specific extension)
-
setOnBlobUrlRemoved(
void callback(String blobUrl)) → void -
toString(
) → String -
A string representation of this object.
inherited
-
unregisterUrl(
String filename) → void - Removes a URL registration and notifies cleanup managers.
-
writeFile(
String path, Uint8List data) → Future< void> -
Writes data to a file at the given path
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited