KeyValueFieldWidget class

keyvalue. One row per pair, each a key cell and a value cell side by side.

Row identity is independent of the key string (fix round 1, Finding 2). The wire value is a Map<String, String>, which cannot itself hold two rows sharing a key — but a user typing a new key routes through every intermediate value on the way to a final one, and two rows sharing a key (or the blank key a second Add produces) is a completely ordinary, recoverable mid-edit state, not data loss. So _pairs is State, seeded once from FieldState.value and mutated in place by _commit — not re-derived from the map on every build, the way the old Stateless version did. _isOwnEcho is what makes this safe: after a commit, FieldState round-trips the same (possibly collapsed) map back down through didUpdateWidget, and that echo must not stomp _pairs back to the collapsed shape — only a genuinely external change (a fresh record loaded, a /state refresh) does. Without this a second tap of Add did nothing (the second blank key collided with the first on the very next build) and renaming one row's key to another's silently deleted a row while the user was still typing.

Absent, not disabled (design spec, and fix round 1 Finding 1): the Add control renders only when KeyValueComponent.addable, a row's Remove control only when KeyValueComponent.deletable, and — now — a row's key or value cell renders as plain, unfocusable Text rather than a _TextControl when KeyValueComponent.editableKeys / KeyValueComponent.editableValues is false. The value itself is never absent (the row still has to show what it holds, which is why vendor's own view disables rather than removes its <input>) — it is the INPUT AFFORDANCE that goes away, the same distinction Add and Remove already draw.

reorderable is deliberately not read at all — it is not on the wire (design spec): the repeater publishes it and this widget has never offered one.

Inheritance

Constructors

KeyValueFieldWidget({required KeyValueComponent component, required FieldState state, Key? key})
const

Properties

component → KeyValueComponent
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
state → FieldState
final

Methods

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