Message class abstract

Abstract base class representing a chat message.

This class follows the Template Method pattern by defining the common structure and behavior for all message types while allowing specific implementations for different message directions (sender/receiver).

Key features:

  • Unique identification and timestamp tracking
  • Element-based content structure for rich messages
  • Loading and failure state management
  • Immutable message copying with state updates

See also:

Implementers

Constructors

Message({required String name, required String id, required String timestamp, required List<MessageElement> elements, bool isLoading = false, bool isFailed = false, double? width})

Properties

elements → List<MessageElement>
List of content elements that make up the message.
final
hashCode → int
The hash code for this object.
no setterinherited
id → String
Unique identifier for this message.
final
isFailed → bool
Whether the message failed to send or process.
final
isLoading → bool
Whether the message is currently in a loading state.
final
isSender → bool
Whether this message is from the sender.
no setter
name → String
Display name of the message author.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
timestamp → String
ISO 8601 timestamp when the message was created.
final
width → double?
Optional width constraint for the message bubble.
final

Methods

copyWith({String? timestamp, bool? isLoading, List<MessageElement>? elements, bool? isFailed, double? width}) → Message
Creates a copy of this message with updated properties.
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