TMenuOverlayItem<T extends TMenuItemData<T>> class

A single row inside an open TMenuOverlayPanel. If the item has visible children, hovering/tapping it opens another panel to the side via its own OverlayPortalController, positioned with the same generic PopupPositionDelegate used everywhere else in this engine.

This is what used to be duplicated almost verbatim as TDropdownOverlayItem and TSidebarOverlayItem — the sidebar version additionally hand-computed nested-submenu positions from a RenderBox.localToGlobal lookup with manual screen-edge collision math; that's gone now, OverlayPortal + PopupPositionDelegate handles it for every level uniformly.

Inheritance
Available extensions

Constructors

TMenuOverlayItem({Key? key, required T item, required int level, required TMenuTheme theme, bool isActive = false, bool containsActive = false, bool isActiveFn(T item)?, bool containsActiveFn(T item)?, ValueChanged<T>? onTap})
const

Properties

containsActive → bool
final
containsActiveFn → bool Function(T item)?
final
hashCode → int
The hash code for this object.
no setterinherited
isActive → bool
final
isActiveFn → bool Function(T item)?
Predicates threaded down so a nested panel opened from this item can keep resolving active state for its own descendants. (The original TDropdownOverlayItem didn't do this at all — nested dropdown levels past the first never highlighted the active item. Fixed here.)
final
item → T
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
level → int
final
onTap → ValueChanged<T>?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
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<TMenuOverlayItem<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