TMenuOverlayPanel<T extends TMenuItemData<T>> class

The "list of menu items" surface shown inside an overlay — used for every nesting level of both TDropdown and TSidebar submenus.

Generalized from TDropdownOverlay. Two things were ported in from the sidebar side while unifying this:

  • staggerItemEntrance: the sidebar's flat item list staggered each row's entrance (slide + fade); the dropdown's overlay only ever faded/scaled the whole panel at once. Opt-in here since it may be too busy for a hover-triggered popup at deeper levels.
  • isActive / containsActive are real predicates over T, not the booleans TDropdownOverlay used to take — the original wiring had a bug where containsActive was actually just isActive called twice, so nothing ever got the "contains active descendant" style.
Inheritance
Available extensions

Constructors

TMenuOverlayPanel({Key? key, required List<T> items, required int level, required TMenuTheme theme, bool isActive(T item)?, bool containsActive(T item)?, ValueChanged<T>? onItemTap, bool staggerItemEntrance = false})
const

Properties

containsActive → bool Function(T item)?
final
hashCode → int
The hash code for this object.
no setterinherited
isActive → bool Function(T item)?
final
items → List<T>
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
level → int
final
onItemTap → ValueChanged<T>?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
staggerItemEntrance → bool
final
theme → TMenuTheme
final

Methods

box({double minW = 0.0, double minH = 0.0, double maxW = double.infinity, double maxH = double.infinity}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a ConstrainedBox to apply layout constraints.
center({bool when = true}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Center widget.
createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<TMenuOverlayPanel<T>>
Creates the mutable state for this widget at a given location in the tree.
override
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
expanded({int flex = 1}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in an Expanded widget.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
padding([double left = 0.0, double top = 0.0, double right = 0.0, double bottom = 0.0]) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Padding with flexible edge control.
paddingSymmetric({double h = 0.0, double v = 0.0}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Padding with symmetric horizontal and vertical spacing.
size({double? w, double? h}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a SizedBox to apply fixed width and/or height.
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
visible(bool visible, {bool maintainState = false}) → Widget

Available on Widget, provided by the WidgetX extension

Wraps this widget in a Visibility widget.
when(bool condition) → Widget

Available on Widget, provided by the WidgetX extension

Returns this widget if condition is true, otherwise returns SizedBox.shrink(). Usage: Text('Hello').when(isVisible)

Operators

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