ChatHeader class

A header widget for the chat interface displaying bot information and controls.

This widget shows the bot's avatar, name, online status, and provides navigation and action controls like close and clear history options.

Features:

  • Bot avatar and name display
  • Online status indicator
  • Optional close button with back navigation
  • Optional popup menu with actions (clear history, etc.)
  • Theme-aware styling and colors
  • Responsive layout with proper spacing

Example:

ChatHeader(
  configuration: botConfiguration,
  onClose: () => Navigator.pop(context),
  onClearHistory: () => clearChatHistory(),
)
Inheritance

Constructors

ChatHeader({required BotConfiguration configuration, Key? key, VoidCallback? onClose, VoidCallback? onClearHistory, VoidCallback? onExportChat, void onChangeLanguage(String locale)?, void onChangeTheme(ThemeMode mode)?, ThemeMode currentThemeMode = ThemeMode.system})
Creates a new chat header widget.
const

Properties

configuration BotConfiguration
The bot configuration containing name, avatar, and styling information.
final
currentThemeMode ThemeMode
The currently-active theme mode, used to mark the selected row in the theme picker. Defaults to ThemeMode.system.
final
hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onChangeLanguage → void Function(String locale)?
Callback fired with the chosen locale code when the user picks a language from the manual picker. If null — or the project ships fewer than two locales, or dynamicLanguageEnabled is off — the "Change language" menu item is not displayed.
final
onChangeTheme → void Function(ThemeMode mode)?
Callback fired with the chosen ThemeMode when the user picks a theme from the switcher. If null — or showThemeToggle is off — the "Theme" menu item is not displayed.
final
onClearHistory VoidCallback?
Callback function called when the clear history action is selected.
final
onClose VoidCallback?
Callback function called when the close/back button is pressed.
final
onExportChat VoidCallback?
Callback function called when the export-chat action is selected.
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget.
override
createElement() StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a one-line detailed description of the object.
inherited
toStringShort() String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited