[CP] Fix a type casting error in text_input.dart (flutter#109635) (fl…

…utter#114806) (cherry picked from commit 8caa14e) Co-authored-by: LongCatIsLooong <[email protected]> Co-authored-by: Casey Hillers <[email protected]>
shogohida · Nov 9, 2022 · 52b3dc2 · 52b3dc2
1 parent a1b2976
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diff --git a/packages/flutter/lib/src/services/text_input.dart b/packages/flutter/lib/src/services/text_input.dart
@@ -1510,7 +1510,7 @@ RawFloatingCursorPoint _toTextPoint(FloatingCursorDragState state, Map<String, d
   assert(encoded['X'] != null, 'You must provide a value for the horizontal location of the floating cursor.');
   assert(encoded['Y'] != null, 'You must provide a value for the vertical location of the floating cursor.');
   final Offset offset = state == FloatingCursorDragState.Update
-    ? Offset(encoded['X'] as double, encoded['Y'] as double)
+    ? Offset((encoded['X'] as num).toDouble(), (encoded['Y'] as num).toDouble())
     : Offset.zero;
   return RawFloatingCursorPoint(offset: offset, state: state);
 }

diff --git a/packages/flutter/test/services/text_input_test.dart b/packages/flutter/test/services/text_input_test.dart
@@ -241,6 +241,33 @@ void main() {
       expect(record[0].exception.toString(), matches(RegExp(r'\brange.start >= 0 && range.start <= text.length\b')));
       expect(record[0].exception.toString(), matches(RegExp(r'\bRange start 2 is out of text of length 1\b')));
     });
+
+    test('FloatingCursor coordinates type-casting', () async {
+      // Regression test for https://github.com/flutter/flutter/issues/109632.
+      final List<FlutterErrorDetails> errors = <FlutterErrorDetails>[];
+      FlutterError.onError = errors.add;
+
+      final FakeTextInputClient client = FakeTextInputClient(const TextEditingValue(text: 'test3'));
+      const TextInputConfiguration configuration = TextInputConfiguration();
+      TextInput.attach(client, configuration);
+
+      final ByteData? messageBytes = const JSONMessageCodec().encodeMessage(<String, dynamic>{
+        'method': 'TextInputClient.updateFloatingCursor',
+        'args': <dynamic>[
+          -1,
+          'FloatingCursorDragState.update',
+          <String, dynamic>{ 'X': 2, 'Y': 3 },
+        ],
+      });
+
+      await ServicesBinding.instance.defaultBinaryMessenger.handlePlatformMessage(
+        'flutter/textinput',
+        messageBytes,
+        (ByteData? _) {},
+      );
+
+      expect(errors, isEmpty);
+    });
   });
 
   group('TextInputConfiguration', () {