FileUploadHelper class abstract final

Static helpers for inferring file extensions and storage-prefix labels from file paths and MessageType fallbacks.

This is a pure utility class — it has no dependency on RoomManager or any delegates. Upload orchestration lives in MessageMixin.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

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

Static Methods

fileExtension(String path, {required MessageType fallbackType}) → String?

Extracts the file extension from path.

filePrefix(String? ext, {required MessageType fallbackType}) → String

Maps a file ext to a short storage prefix (img / aud / vid / txt).