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Unverified Commit 438c4ff2 authored by LongCatIsLooong's avatar LongCatIsLooong Committed by GitHub
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Reland "More EditableText docs (#66864)" (#68043)

parent 4ce5c271
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Showing with 435 additions and 107 deletions
packages/flutter/lib/src/services/text_input.dart
View file @ 438c4ff2
......@@ -756,7 +756,17 @@ abstract class TextSelectionDelegate {
/// Gets the current text input.
TextEditingValue get textEditingValue;
/// Sets the current text input (replaces the whole line).
/// Indicates that the user has requested the delegate to replace its current
/// text editing state with [value].
///
/// The new [value] is treated as user input and thus may subject to input
/// formatting.
///
/// See also:
///
/// * [EditableTextState.textEditingValue]: an implementation that applies
/// additional pre-processing to the specified [value], before updating the
/// text editing state.
set textEditingValue(TextEditingValue value);
/// Hides the text selection toolbar.
......@@ -784,6 +794,7 @@ abstract class TextSelectionDelegate {
/// See also:
///
/// * [TextInput.attach]
/// * [EditableText], a [TextInputClient] implementation.
abstract class TextInputClient {
/// Abstract const constructor. This constructor enables subclasses to provide
/// const constructors so that they can be used in const expressions.
......@@ -805,6 +816,9 @@ abstract class TextInputClient {
AutofillScope? get currentAutofillScope;
/// Requests that this client update its editing state to the given value.
///
/// The new [value] is treated as user input and thus may subject to input
/// formatting.
void updateEditingValue(TextEditingValue value);
/// Requests that this client perform the given action.
......@@ -832,7 +846,10 @@ abstract class TextInputClient {
///
/// See also:
///
/// * [TextInput.attach]
/// * [TextInput.attach], a method used to establish a [TextInputConnection]
/// between the system's text input and a [TextInputClient].
/// * [EditableText], a [TextInputClient] that connects to and interacts with
/// the system's text input using a [TextInputConnection].
class TextInputConnection {
TextInputConnection._(this._client)
: assert(_client != null),
......@@ -889,7 +906,8 @@ class TextInputConnection {
TextInput._instance._updateConfig(configuration);
}
/// Requests that the text input control change its internal state to match the given state.
/// Requests that the text input control change its internal state to match
/// the given state.
void setEditingState(TextEditingValue value) {
assert(attached);
TextInput._instance._setEditingState(value);
......@@ -1042,9 +1060,57 @@ RawFloatingCursorPoint _toTextPoint(FloatingCursorDragState state, Map<String, d
/// An low-level interface to the system's text input control.
///
/// To start interacting with the system's text input control, call [attach] to
/// establish a [TextInputConnection] between the system's text input control
/// and a [TextInputClient]. The majority of commands available for
/// interacting with the text input control reside in the returned
/// [TextInputConnection]. The communication between the system text input and
/// the [TextInputClient] is asynchronous.
///
/// The platform text input plugin (which represents the system's text input)
/// and the [TextInputClient] usually maintain their own text editing states
/// ([TextEditingValue]) separately. They must be kept in sync as long as the
/// [TextInputClient] is connected. The following methods can be used to send
/// [TextEditingValue] to update the other party, when either party's text
/// editing states change:
///
/// * The [TextInput.attach] method allows a [TextInputClient] to establish a
/// connection to the text input. An optional field in its `configuration`
/// parameter can be used to specify an initial value for the platform text
/// input plugin's [TextEditingValue].
///
/// * The [TextInputClient] sends its [TextEditingValue] to the platform text
/// input plugin using [TextInputConnection.setEditingState].
///
/// * The platform text input plugin sends its [TextEditingValue] to the
/// connected [TextInputClient] via a "TextInput.setEditingState" message.
///
/// * When autofill happens on a disconnected [TextInputClient], the platform
/// text input plugin sends the [TextEditingValue] to the connected
/// [TextInputClient]'s [AutofillScope], and the [AutofillScope] will further
/// relay the value to the correct [TextInputClient].
///
/// When synchronizing the [TextEditingValue]s, the communication may get stuck
/// in an infinite when both parties are trying to send their own update. To
/// mitigate the problem, only [TextInputClient]s are allowed to alter the
/// received [TextEditingValue]s while platform text input plugins are to accept
/// the received [TextEditingValue]s unmodified. More specifically:
///
/// * When a [TextInputClient] receives a new [TextEditingValue] from the
/// platform text input plugin, it's allowed to modify the value (for example,
/// apply [TextInputFormatter]s). If it decides to do so, it must send the
/// updated [TextEditingValue] back to the platform text input plugin to keep
/// the [TextEditingValue]s in sync.
///
/// * When the platform text input plugin receives a new value from the
/// connected [TextInputClient], it must accept the new value as-is, to avoid
/// sending back an updated value.
///
/// See also:
///
/// * [TextField], a widget in which the user may enter text.
/// * [EditableText], a [TextInputClient] that connects to [TextInput] when it
/// wants to take user input from the keyboard.
class TextInput {
TextInput._() {
_channel = SystemChannels.textInput;
......
packages/flutter/lib/src/widgets/editable_text.dart
View file @ 438c4ff2
......@@ -320,6 +320,19 @@ class ToolbarOptions {
/// movement. This widget does not provide any focus management (e.g.,
/// tap-to-focus).
///
/// ## Handling User Input
///
/// Currently the user may change the text this widget contains via keyboard or
/// the text selection menu. When the user inserted or deleted text, you will be
/// notified of the change and get a chance to modify the new text value:
///
/// * The [inputFormatters] will be first applied to the user input.
///
/// * The [controller]'s [TextEditingController.value] will be updated with the
/// formatted result, and the [controller]'s listeners will be notified.
///
/// * The [onChanged] callback, if specified, will be called last.
///
/// ## Input Actions
///
/// A [TextInputAction] can be provided to customize the appearance of the
......@@ -1082,7 +1095,9 @@ class EditableText extends StatefulWidget {
/// {@template flutter.widgets.editableText.inputFormatters}
/// Optional input validation and formatting overrides.
///
/// Formatters are run in the provided order when the text input changes.
/// Formatters are run in the provided order when the text input changes. When
/// this parameter changes, the new formatters will not be applied until the
/// next time the user inserts or deletes text.
/// {@endtemplate}
final List<TextInputFormatter>? inputFormatters;
......@@ -1637,61 +1652,66 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
_clipboardStatus?.removeListener(_onChangedClipboardStatus);
_clipboardStatus?.dispose();
super.dispose();
assert(_batchEditDepth <= 0, 'unfinished batch edits: $_batchEditDepth');
}
// TextInputClient implementation:
// _lastFormattedUnmodifiedTextEditingValue tracks the last value
// that the formatter ran on and is used to prevent double-formatting.
TextEditingValue? _lastFormattedUnmodifiedTextEditingValue;
// _lastFormattedValue tracks the last post-format value, so that it can be
// reused without rerunning the formatter when the input value is repeated.
TextEditingValue? _lastFormattedValue;
// _receivedRemoteTextEditingValue is the direct value last passed in
// updateEditingValue. This value does not get updated with the formatted
// version.
TextEditingValue? _receivedRemoteTextEditingValue;
/// The last known [TextEditingValue] of the platform text input plugin.
///
/// This value is updated when the platform text input plugin sends a new
/// update via [updateEditingValue], or when [EditableText] calls
/// [TextInputConnection.setEditingState] to overwrite the platform text input
/// plugin's [TextEditingValue].
///
/// Used in [_updateRemoteEditingValueIfNeeded] to determine whether the
/// remote value is outdated and needs updating.
TextEditingValue? _lastKnownRemoteTextEditingValue;
@override
TextEditingValue get currentTextEditingValue => _value;
bool _updateEditingValueInProgress = false;
@override
void updateEditingValue(TextEditingValue value) {
_updateEditingValueInProgress = true;
// This method handles text editing state updates from the platform text
// input plugin. The [EditableText] may not have the focus or an open input
// connection, as autofill can update a disconnected [EditableText].
// Since we still have to support keyboard select, this is the best place
// to disable text updating.
if (!_shouldCreateInputConnection) {
_updateEditingValueInProgress = false;
return;
}
if (widget.readOnly) {
// In the read-only case, we only care about selection changes, and reject
// everything else.
value = _value.copyWith(selection: value.selection);
}
_receivedRemoteTextEditingValue = value;
if (value.text != _value.text) {
hideToolbar();
_showCaretOnScreen();
_currentPromptRectRange = null;
if (widget.obscureText && value.text.length == _value.text.length + 1) {
_obscureShowCharTicksPending = _kObscureShowLatestCharCursorTicks;
_obscureLatestCharIndex = _value.selection.baseOffset;
}
}
_lastKnownRemoteTextEditingValue = value;
if (value == _value) {
// This is possible, for example, when the numeric keyboard is input,
// the engine will notify twice for the same value.
// Track at https://github.com/flutter/flutter/issues/65811
_updateEditingValueInProgress = false;
return;
} else if (value.text == _value.text && value.composing == _value.composing && value.selection != _value.selection) {
}
if (value.text == _value.text && value.composing == _value.composing) {
// `selection` is the only change.
_handleSelectionChanged(value.selection, renderEditable, SelectionChangedCause.keyboard);
} else {
hideToolbar();
_currentPromptRectRange = null;
if (_hasInputConnection) {
_showCaretOnScreen();
if (widget.obscureText && value.text.length == _value.text.length + 1) {
_obscureShowCharTicksPending = _kObscureShowLatestCharCursorTicks;
_obscureLatestCharIndex = _value.selection.baseOffset;
}
}
_formatAndSetValue(value);
}
......@@ -1701,7 +1721,6 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
_stopCursorTimer(resetCharTicks: false);
_startCursorTimer();
}
_updateEditingValueInProgress = false;
}
@override
......@@ -1859,33 +1878,52 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
}
// Invoke optional callback with the user's submitted content.
if (widget.onSubmitted != null) {
try {
widget.onSubmitted!(_value.text);
} catch (exception, stack) {
FlutterError.reportError(FlutterErrorDetails(
exception: exception,
stack: stack,
library: 'widgets',
context: ErrorDescription('while calling onSubmitted for $action'),
));
}
try {
widget.onSubmitted?.call(_value.text);
} catch (exception, stack) {
FlutterError.reportError(FlutterErrorDetails(
exception: exception,
stack: stack,
library: 'widgets',
context: ErrorDescription('while calling onSubmitted for $action'),
));
}
}
int _batchEditDepth = 0;
/// Begins a new batch edit, within which new updates made to the text editing
/// value will not be sent to the platform text input plugin.
///
/// Batch edits nest. When the outmost batch edit finishes, [endBatchEdit]
/// will attempt to send [currentTextEditingValue] to the text input plugin if
/// it detected a change.
void beginBatchEdit() {
_batchEditDepth += 1;
}
/// Ends the current batch edit started by the last call to [beginBatchEdit],
/// and send [currentTextEditingValue] to the text input plugin if needed.
///
/// Throws an error in debug mode if this [EditableText] is not in a batch
/// edit.
void endBatchEdit() {
_batchEditDepth -= 1;
assert(
_batchEditDepth >= 0,
'Unbalanced call to endBatchEdit: beginBatchEdit must be called first.',
);
_updateRemoteEditingValueIfNeeded();
}
void _updateRemoteEditingValueIfNeeded() {
if (!_hasInputConnection)
if (_batchEditDepth > 0 || !_hasInputConnection)
return;
final TextEditingValue localValue = _value;
// We should not update back the value notified by the remote(engine) in reverse, this is redundant.
// Unless we modify this value for some reason during processing, such as `TextInputFormatter`.
if (_updateEditingValueInProgress && localValue == _receivedRemoteTextEditingValue)
if (localValue == _lastKnownRemoteTextEditingValue)
return;
// In other cases, as long as the value of the [widget.controller.value] is modified,
// `setEditingState` should be called as we do not want to skip sending real changes
// to the engine.
// Also see https://github.com/flutter/flutter/issues/65059#issuecomment-690254379
_textInputConnection!.setEditingState(localValue);
_lastKnownRemoteTextEditingValue = localValue;
}
TextEditingValue get _value => widget.controller.value;
......@@ -1949,7 +1987,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
return RevealedOffset(rect: rect.shift(unitOffset * offsetDelta), offset: targetOffset);
}
bool get _hasInputConnection => _textInputConnection != null && _textInputConnection!.attached;
bool get _hasInputConnection => _textInputConnection?.attached ?? false;
bool get _needsAutofill => widget.autofillHints?.isNotEmpty ?? false;
bool get _shouldBeInAutofillContext => _needsAutofill && currentAutofillScope != null;
......@@ -1959,7 +1997,6 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
}
if (!_hasInputConnection) {
final TextEditingValue localValue = _value;
_lastFormattedUnmodifiedTextEditingValue = localValue;
// When _needsAutofill == true && currentAutofillScope == null, autofill
// is allowed but saving the user input from the text field is
......@@ -2000,8 +2037,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
if (_hasInputConnection) {
_textInputConnection!.close();
_textInputConnection = null;
_lastFormattedUnmodifiedTextEditingValue = null;
_receivedRemoteTextEditingValue = null;
_lastKnownRemoteTextEditingValue = null;
}
}
......@@ -2019,8 +2055,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
if (_hasInputConnection) {
_textInputConnection!.connectionClosedReceived();
_textInputConnection = null;
_lastFormattedUnmodifiedTextEditingValue = null;
_receivedRemoteTextEditingValue = null;
_lastKnownRemoteTextEditingValue = null;
_finalizeEditing(TextInputAction.done, shouldUnfocus: true);
}
}
......@@ -2084,17 +2119,15 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
);
_selectionOverlay!.handlesVisible = widget.showSelectionHandles;
_selectionOverlay!.showHandles();
if (widget.onSelectionChanged != null) {
try {
widget.onSelectionChanged!(selection, cause);
} catch (exception, stack) {
FlutterError.reportError(FlutterErrorDetails(
exception: exception,
stack: stack,
library: 'widgets',
context: ErrorDescription('while calling onSelectionChanged for $cause'),
));
}
try {
widget.onSelectionChanged?.call(selection, cause);
} catch (exception, stack) {
FlutterError.reportError(FlutterErrorDetails(
exception: exception,
stack: stack,
library: 'widgets',
context: ErrorDescription('while calling onSelectionChanged for $cause'),
));
}
}
}
......@@ -2182,53 +2215,39 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
_lastBottomViewInset = WidgetsBinding.instance!.window.viewInsets.bottom;
}
_WhitespaceDirectionalityFormatter? _whitespaceFormatter;
late final _WhitespaceDirectionalityFormatter _whitespaceFormatter = _WhitespaceDirectionalityFormatter(textDirection: _textDirection);
void _formatAndSetValue(TextEditingValue value) {
_whitespaceFormatter ??= _WhitespaceDirectionalityFormatter(textDirection: _textDirection);
// Check if the new value is the same as the current local value, or is the same
// as the pre-formatting value of the previous pass (repeat call).
final bool textChanged = _value.text != value.text;
final bool isRepeat = value == _lastFormattedUnmodifiedTextEditingValue;
// There's no need to format when starting to compose or when continuing
// an existing composition.
final bool isComposing = value.composing.isValid;
final bool isPreviouslyComposing = _lastFormattedUnmodifiedTextEditingValue?.composing.isValid ?? false;
final bool textChanged = _value.text != value.text || _value.composing != value.composing;
if ((textChanged || (!isComposing && isPreviouslyComposing)) &&
widget.inputFormatters != null &&
widget.inputFormatters!.isNotEmpty) {
if (textChanged) {
// Only format when the text has changed and there are available formatters.
// Pass through the formatter regardless of repeat status if the input value is
// different than the stored value.
for (final TextInputFormatter formatter in widget.inputFormatters!) {
value = formatter.formatEditUpdate(_value, value);
}
value = widget.inputFormatters?.fold<TextEditingValue>(
value,
(TextEditingValue newValue, TextInputFormatter formatter) => formatter.formatEditUpdate(_value, newValue),
) ?? value;
// Always pass the text through the whitespace directionality formatter to
// maintain expected behavior with carets on trailing whitespace.
value = _whitespaceFormatter!.formatEditUpdate(_value, value);
_lastFormattedValue = value;
// TODO(LongCatIsLooong): The if statement here is for retaining the
// previous behavior. The input formatter logic will be updated in an
// upcoming PR.
if (widget.inputFormatters?.isNotEmpty ?? false)
value = _whitespaceFormatter.formatEditUpdate(_value, value);
}
if (value == _value) {
// If the value was modified by the formatter, the remote should be notified to keep in sync,
// if not modified, it will short-circuit.
_updateRemoteEditingValueIfNeeded();
} else {
// Setting _value here ensures the selection and composing region info is passed.
_value = value;
}
// Put all optional user callback invocations in a batch edit to prevent
// sending multiple `TextInput.updateEditingValue` messages.
beginBatchEdit();
// Use the last formatted value when an identical repeat pass is detected.
if (isRepeat && textChanged && _lastFormattedValue != null) {
_value = _lastFormattedValue!;
}
if (textChanged && widget.onChanged != null) {
_value = value;
if (textChanged) {
try {
widget.onChanged!(value.text);
widget.onChanged?.call(value.text);
} catch (exception, stack) {
FlutterError.reportError(FlutterErrorDetails(
exception: exception,
......@@ -2238,7 +2257,8 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
));
}
}
_lastFormattedUnmodifiedTextEditingValue = _receivedRemoteTextEditingValue;
endBatchEdit();
}
void _onCursorColorTick() {
......
packages/flutter/test/widgets/editable_text_test.dart
View file @ 438c4ff2
......@@ -4729,6 +4729,246 @@ void main() {
);
});
group('batch editing', () {
final TextEditingController controller = TextEditingController(text: testText);
final EditableText editableText = EditableText(
showSelectionHandles: true,
maxLines: 2,
controller: controller,
focusNode: FocusNode(),
cursorColor: Colors.red,
backgroundCursorColor: Colors.blue,
style: Typography.material2018(platform: TargetPlatform.android).black.subtitle1.copyWith(fontFamily: 'Roboto'),
keyboardType: TextInputType.text,
);
final Widget widget = MediaQuery(
data: const MediaQueryData(),
child: Directionality(
textDirection: TextDirection.ltr,
child: editableText,
),
);
testWidgets('batch editing works', (WidgetTester tester) async {
await tester.pumpWidget(widget);
// Connect.
await tester.showKeyboard(find.byType(EditableText));
final EditableTextState state = tester.state<EditableTextState>(find.byWidget(editableText));
state.updateEditingValue(const TextEditingValue(text: 'remote value'));
tester.testTextInput.log.clear();
state.beginBatchEdit();
controller.text = 'new change 1';
expect(state.currentTextEditingValue.text, 'new change 1');
expect(tester.testTextInput.log, isEmpty);
// Nesting.
state.beginBatchEdit();
controller.text = 'new change 2';
expect(state.currentTextEditingValue.text, 'new change 2');
expect(tester.testTextInput.log, isEmpty);
// End the innermost batch edit. Not yet.
state.endBatchEdit();
expect(tester.testTextInput.log, isEmpty);
controller.text = 'new change 3';
expect(state.currentTextEditingValue.text, 'new change 3');
expect(tester.testTextInput.log, isEmpty);
// Finish the outermost batch edit.
state.endBatchEdit();
expect(tester.testTextInput.log, hasLength(1));
expect(
tester.testTextInput.log,
contains(matchesMethodCall('TextInput.setEditingState', args: containsPair('text', 'new change 3'))),
);
});
testWidgets('batch edits need to be nested properly', (WidgetTester tester) async {
await tester.pumpWidget(widget);
// Connect.
await tester.showKeyboard(find.byType(EditableText));
final EditableTextState state = tester.state<EditableTextState>(find.byWidget(editableText));
state.updateEditingValue(const TextEditingValue(text: 'remote value'));
tester.testTextInput.log.clear();
String errorString;
try {
state.endBatchEdit();
} catch (e) {
errorString = e.toString();
}
expect(errorString, contains('Unbalanced call to endBatchEdit'));
});
testWidgets('catch unfinished batch edits on disposal', (WidgetTester tester) async {
await tester.pumpWidget(widget);
// Connect.
await tester.showKeyboard(find.byType(EditableText));
final EditableTextState state = tester.state<EditableTextState>(find.byWidget(editableText));
state.updateEditingValue(const TextEditingValue(text: 'remote value'));
tester.testTextInput.log.clear();
state.beginBatchEdit();
expect(tester.takeException(), isNull);
await tester.pumpWidget(Container());
expect(tester.takeException(), isNotNull);
});
});
group('EditableText does not send editing values more than once', () {
final TextEditingController controller = TextEditingController(text: testText);
final EditableText editableText = EditableText(
showSelectionHandles: true,
maxLines: 2,
controller: controller,
focusNode: FocusNode(),
cursorColor: Colors.red,
backgroundCursorColor: Colors.blue,
style: Typography.material2018(platform: TargetPlatform.android).black.subtitle1.copyWith(fontFamily: 'Roboto'),
keyboardType: TextInputType.text,
inputFormatters: <TextInputFormatter>[LengthLimitingTextInputFormatter(6)],
onChanged: (String s) => controller.text += ' onChanged',
);
final Widget widget = MediaQuery(
data: const MediaQueryData(),
child: Directionality(
textDirection: TextDirection.ltr,
child: editableText,
),
);
controller.addListener(() {
if (!controller.text.endsWith('listener'))
controller.text += ' listener';
});
testWidgets('input from text input plugin', (WidgetTester tester) async {
await tester.pumpWidget(widget);
// Connect.
await tester.showKeyboard(find.byType(EditableText));
tester.testTextInput.log.clear();
final EditableTextState state = tester.state<EditableTextState>(find.byWidget(editableText));
state.updateEditingValue(const TextEditingValue(text: 'remoteremoteremote'));
// Apply in order: length formatter -> listener -> onChanged -> listener.
expect(controller.text, 'remote listener onChanged listener');
final List<TextEditingValue> updates = tester.testTextInput.log
.where((MethodCall call) => call.method == 'TextInput.setEditingState')
.map((MethodCall call) => TextEditingValue.fromJSON(call.arguments as Map<String, dynamic>))
.toList(growable: false);
expect(updates, const <TextEditingValue>[TextEditingValue(text: 'remote listener onChanged listener')]);
tester.testTextInput.log.clear();
// If by coincidence the text input plugin sends the same value back,
// do nothing.
state.updateEditingValue(const TextEditingValue(text: 'remote listener onChanged listener'));
expect(controller.text, 'remote listener onChanged listener');
expect(tester.testTextInput.log, isEmpty);
});
testWidgets('input from text selection menu', (WidgetTester tester) async {
await tester.pumpWidget(widget);
// Connect.
await tester.showKeyboard(find.byType(EditableText));
tester.testTextInput.log.clear();
final EditableTextState state = tester.state<EditableTextState>(find.byWidget(editableText));
state.textEditingValue = const TextEditingValue(text: 'remoteremoteremote');
// Apply in order: length formatter -> listener -> onChanged -> listener.
expect(controller.text, 'remote listener onChanged listener');
final List<TextEditingValue> updates = tester.testTextInput.log
.where((MethodCall call) => call.method == 'TextInput.setEditingState')
.map((MethodCall call) => TextEditingValue.fromJSON(call.arguments as Map<String, dynamic>))
.toList(growable: false);
expect(updates, const <TextEditingValue>[TextEditingValue(text: 'remote listener onChanged listener')]);
tester.testTextInput.log.clear();
});
testWidgets('input from controller', (WidgetTester tester) async {
await tester.pumpWidget(widget);
// Connect.
await tester.showKeyboard(find.byType(EditableText));
tester.testTextInput.log.clear();
controller.text = 'remoteremoteremote';
final List<TextEditingValue> updates = tester.testTextInput.log
.where((MethodCall call) => call.method == 'TextInput.setEditingState')
.map((MethodCall call) => TextEditingValue.fromJSON(call.arguments as Map<String, dynamic>))
.toList(growable: false);
expect(updates, const <TextEditingValue>[TextEditingValue(text: 'remoteremoteremote listener')]);
});
testWidgets('input from changing controller', (WidgetTester tester) async {
final TextEditingController controller = TextEditingController(text: testText);
Widget build({ TextEditingController textEditingController }) {
return MediaQuery(
data: const MediaQueryData(),
child: Directionality(
textDirection: TextDirection.ltr,
child: EditableText(
showSelectionHandles: true,
maxLines: 2,
controller: textEditingController ?? controller,
focusNode: FocusNode(),
cursorColor: Colors.red,
backgroundCursorColor: Colors.blue,
style: Typography.material2018(platform: TargetPlatform.android).black.subtitle1.copyWith(fontFamily: 'Roboto'),
keyboardType: TextInputType.text,
inputFormatters: <TextInputFormatter>[LengthLimitingTextInputFormatter(6)],
),
),
);
}
await tester.pumpWidget(build());
// Connect.
await tester.showKeyboard(find.byType(EditableText));
tester.testTextInput.log.clear();
await tester.pumpWidget(build(textEditingController: TextEditingController(text: 'new text')));
List<TextEditingValue> updates = tester.testTextInput.log
.where((MethodCall call) => call.method == 'TextInput.setEditingState')
.map((MethodCall call) => TextEditingValue.fromJSON(call.arguments as Map<String, dynamic>))
.toList(growable: false);
expect(updates, const <TextEditingValue>[TextEditingValue(text: 'new text')]);
tester.testTextInput.log.clear();
await tester.pumpWidget(build(textEditingController: TextEditingController(text: 'new new text')));
updates = tester.testTextInput.log
.where((MethodCall call) => call.method == 'TextInput.setEditingState')
.map((MethodCall call) => TextEditingValue.fromJSON(call.arguments as Map<String, dynamic>))
.toList(growable: false);
expect(updates, const <TextEditingValue>[TextEditingValue(text: 'new new text')]);
});
});
testWidgets('input imm channel calls are ordered correctly', (WidgetTester tester) async {
const String testText = 'flutter is the best!';
final TextEditingController controller = TextEditingController(text: testText);
......@@ -5311,12 +5551,12 @@ void main() {
expect(formatter.formatCallCount, 3);
state.updateEditingValue(const TextEditingValue(text: '0123', selection: TextSelection.collapsed(offset: 2))); // No text change, does not format
expect(formatter.formatCallCount, 3);
state.updateEditingValue(const TextEditingValue(text: '0123', selection: TextSelection.collapsed(offset: 2), composing: TextRange(start: 1, end: 2))); // Composing change does not reformat
expect(formatter.formatCallCount, 3);
state.updateEditingValue(const TextEditingValue(text: '0123', selection: TextSelection.collapsed(offset: 2), composing: TextRange(start: 1, end: 2))); // Composing change triggers reformat
expect(formatter.formatCallCount, 4);
expect(formatter.lastOldValue.composing, const TextRange(start: -1, end: -1));
expect(formatter.lastNewValue.composing, const TextRange(start: -1, end: -1)); // Since did not format, the new composing was not registered in formatter.
expect(formatter.lastNewValue.composing, const TextRange(start: 1, end: 2)); // The new composing was registered in formatter.
state.updateEditingValue(const TextEditingValue(text: '01234', selection: TextSelection.collapsed(offset: 2))); // Formats, with oldValue containing composing region.
expect(formatter.formatCallCount, 4);
expect(formatter.formatCallCount, 5);
expect(formatter.lastOldValue.composing, const TextRange(start: 1, end: 2));
expect(formatter.lastNewValue.composing, const TextRange(start: -1, end: -1));
......@@ -5327,8 +5567,10 @@ void main() {
'[2]: normal aaaa',
'[3]: 012, 0123',
'[3]: normal aaaaaa',
'[4]: 0123, 01234',
'[4]: normal aaaaaaaa'
'[4]: 0123, 0123',
'[4]: normal aaaaaaaa',
'[5]: 0123, 01234',
'[5]: normal aaaaaaaaaa',
];
expect(formatter.log, referenceLog);
......
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