PlinthHoverCard class

A hover-triggered anchored panel matching Mantine's HoverCard.

Structurally similar to PlinthPopover (same CompositedTransformTarget/CompositedTransformFollower + OverlayEntry approach), but not built by composing it directly — Popover's trigger is hardcoded to tap, which doesn't fit hover semantics, and a hover card additionally needs to stay open while the pointer travels from target onto content itself, which Popover has no mechanism for. closeDelay is the grace period after the pointer leaves both regions before the card actually closes, so that travel doesn't cause a flicker.

Desktop/web-oriented — touch devices have no hover concept, so this control is effectively inert there (see PlinthPopover for a tap-triggered equivalent that works everywhere).

PlinthHoverCard(
  target: PlinthAnchor('Hover for details', onTap: () {}),
  content: const Text('Extra context shown on hover.'),
)
Inheritance

Constructors

PlinthHoverCard({Key? key, required Widget target, required Widget content, PlinthPopoverPosition position = PlinthPopoverPosition.bottom, double? width, PlinthSize? radius, Duration? closeDelay})
const

Properties

closeDelay → Duration?
Null takes the value from the theme, which is what almost every caller wants. It cannot be a default here: a default must be const and a theme lookup is not.
final
content → Widget
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
position → PlinthPopoverPosition
final
radius → PlinthSize?
Overrides the theme's default radius for this one instance.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
target → Widget
final
width → double?
Fixed content width. Omit to size to content.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<PlinthHoverCard>
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
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