MouseTrackerAnnotation class Null safety

The annotation object used to annotate regions that are interested in mouse movements.

To use an annotation, return this object as a HitTestEntry in a hit test. Typically this is implemented by making a RenderBox implement this class (see RenderMouseRegion).

MouseTracker uses this class as a label to filter the hit test results. Hit test entries that are also MouseTrackerAnnotations are considered as valid targets in terms of computing mouse related effects, such as enter events, exit events, and mouse cursor events.

See also:

Mixed in types
Implementers

Constructors

MouseTrackerAnnotation({PointerEnterEventListener? onEnter, PointerExitEventListener? onExit, MouseCursor cursor, bool validForMouseTracker})
Creates an immutable MouseTrackerAnnotation. [...]
const

Properties

cursor MouseCursor
The mouse cursor for mouse pointers that are hovering over the region. [...]
final
hashCode int
The hash code for this object. [...]
read-only, inherited
onEnter PointerEnterEventListener?
Triggered when a mouse pointer, with or without buttons pressed, has entered the region and validForMouseTracker is true. [...]
final
onExit PointerExitEventListener?
Triggered when a mouse pointer, with or without buttons pressed, has exited the region and validForMouseTracker is true. [...]
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
validForMouseTracker bool
Whether this is included when MouseTracker collects the list of annotations. [...]
final

Methods

debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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
toStringShort() String
A brief description of this object, usually just the runtimeType and the hashCode. [...]
inherited

Operators

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