ToggleAttributeItem class

A toolbar toggle bound to one Attribute: bold, blockquote, list: 'ordered', direction: 'rtl', ...

The button is active when the selection carries the attribute with the same value — for valued attributes (list styles, alignment, direction) each value gets its own button and only the matching one lights up, which is what makes separate LTR and RTL buttons work correctly. Pressing always calls controller.formatSelection(attribute); the controller's toggle semantics turn a second press into a removal.

The item listens to the controller itself, so only this button rebuilds on selection changes.

Inheritance

Constructors

ToggleAttributeItem({required String id, required String group, required Attribute<Object?> attribute, required IconData icon, required String tooltipOf(QuillKitStrings strings), bool activeWhen(Style selectionStyle)?})
Creates a toggle for attribute.
const

Properties

activeWhen → bool Function(Style selectionStyle)?
Custom active-state predicate over the selection style; defaults to "the style holds attribute with an equal value". The checklist button uses this to light up for both 'checked' and 'unchecked' list values.
final
attribute → Attribute<Object?>
The attribute applied on press and matched for the active state.
final
group → String
Grouping key used for ordering and separators, e.g. 'inline', 'block', 'history'.
final
hashCode → int
The hash code for this object.
no setterinherited
icon → IconData
Icon of the button.
final
id → String
Unique identifier, e.g. 'quill_kit.bold'.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
tooltipOf → String Function(QuillKitStrings strings)
Resolves the tooltip from the ambient strings.
final

Methods

build(BuildContext context, ToolbarItemContext itemContext) → Widget
Builds the widget for this item.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

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