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Showing content from https://api.flutter.dev/flutter/services/TextEditingDelta-class.html below:

TextEditingDelta class - services library

A structure representing a granular change that has occurred to the editing state as a result of text editing.

See also:

• TextEditingDeltaInsertion, a delta representing an insertion.
• TextEditingDeltaDeletion, a delta representing a deletion.
• TextEditingDeltaReplacement, a delta representing a replacement.
• TextEditingDeltaNonTextUpdate, a delta representing an update to the selection and/or composing region.
• TextInputConfiguration, to opt-in your DeltaTextInputClient to receive TextEditingDelta's you must set TextInputConfiguration.enableDeltaModel to true.

Mixed-in types

• Diagnosticable

Implementers

• TextEditingDeltaDeletion
• TextEditingDeltaInsertion
• TextEditingDeltaNonTextUpdate
• TextEditingDeltaReplacement

TextEditingDelta.new({required String oldText, required TextSelection selection, required TextRange composing})

Creates a delta for a given change to the editing state.

const

TextEditingDelta.fromJSON(Map<String, dynamic> encoded)

Creates an instance of this class from a JSON object by inferring the type of delta based on values sent from the engine.

factory

composing → TextRange

The range of text that is still being composed after the delta has been applied.

final

hashCode → int

The hash code for this object.

no setterinherited

oldText → String

The old text state before the delta has occurred.

final

runtimeType → Type

A representation of the runtime type of the object.

no setterinherited

selection → TextSelection

The range of text that is currently selected after the delta has been applied.

final

apply(TextEditingValue value) → TextEditingValue

This method will take the given TextEditingValue and return a new TextEditingValue with that instance of TextEditingDelta applied to it.

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

toStringShort() → String

A brief description of this object, usually just the runtimeType and the hashCode.

inherited

operator ==(Object other) → bool

The equality operator.

inherited

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