FocusNodeIns class

Inheritance
Implemented types

Constructors

FocusNodeIns()

Properties

ancestors → Iterable<FocusNode>
An Iterable over the ancestors of this node.
no setterinherited
canRequestFocus ↔ bool
If true, this focus node may request the primary focus.
getter/setter pairinherited
children → Iterable<FocusNode>
An iterator over the children of this node.
no setterinherited
context → BuildContext?
The context that was supplied to attach.
no setterinherited
debugLabel ↔ String?
A debug label that is used for diagnostic output.
getter/setter pairinherited
descendants → Iterable<FocusNode>
An Iterable over the hierarchy of children below this one, in depth-first order.
no setterinherited
descendantsAreFocusable ↔ bool
If false, will disable focus for all of this node's descendants.
getter/setter pairinherited
descendantsAreTraversable ↔ bool
If false, tells the focus traversal policy to skip over for all of this node's descendants for purposes of the traversal algorithm.
getter/setter pairinherited
enclosingScope → FocusScopeNode?
Returns the nearest enclosing scope node above this node, or null if the node has not yet be added to the focus tree.
no setterinherited
hasFocus → bool
Whether this node has input focus.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
hasPrimaryFocus → bool
Returns true if this node currently has the application-wide input focus.
no setterinherited
highlightMode → FocusHighlightMode
Returns the FocusHighlightMode that is currently in effect for this node.
no setterinherited
nearestScope → FocusScopeNode?
Returns the nearest enclosing scope node above this node, including this node, if it's a scope.
no setterinherited
offset → Offset
Returns the global offset to the upper left corner of the attached widget's RenderObject, in logical units.
no setterinherited
onKey ↔ FocusOnKeyCallback?
Called if this focus node receives a key event while focused (i.e. when hasFocus returns true).
getter/setter pairinherited
onKeyEvent ↔ FocusOnKeyEventCallback?
Called if this focus node receives a key event while focused (i.e. when hasFocus returns true).
getter/setter pairinherited
parent → FocusNode?
Returns the parent node for this object.
no setterinherited
rect → Rect
Returns the global rectangle of the attached widget's RenderObject, in logical units.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
size → Size
Returns the size of the attached widget's RenderObject, in logical units.
no setterinherited
skipTraversal ↔ bool
If true, tells the focus traversal policy to skip over this node for purposes of the traversal algorithm.
getter/setter pairinherited
traversalChildren → Iterable<FocusNode>
An iterator over the children that are allowed to be traversed by the FocusTraversalPolicy.
no setterinherited
traversalDescendants → Iterable<FocusNode>
Returns all descendants which do not have the skipTraversal and do have the canRequestFocus flag set.
no setterinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
attach(BuildContext? context, {FocusOnKeyEventCallback? onKeyEvent, FocusOnKeyCallback? onKey}) → FocusAttachment
Called by the host StatefulWidget to attach a FocusNode to the widget tree.
inherited
consumeKeyboardToken() → bool
Removes the keyboard token from this focus node if it has one.
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
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
focusInDirection(TraversalDirection direction) → bool
Request to move the focus to the nearest focus node in the given direction, by calling the FocusTraversalPolicy.inDirection method.
inherited
get(Token name) → Object?
override
nextFocus() → bool
Request to move the focus to the next focus node, by calling the FocusTraversalPolicy.next method.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
previousFocus() → bool
Request to move the focus to the previous focus node, by calling the FocusTraversalPolicy.previous method.
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
requestFocus([FocusNode? node]) → void
Requests the primary focus for this node, or for a supplied node, which will also give focus to its ancestors.
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 brief description of this object, usually just the runtimeType and the hashCode.
inherited
unfocus({UnfocusDisposition disposition = UnfocusDisposition.scope}) → void
Removes the focus on this node by moving the primary focus to another node.
inherited

Operators

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