[ios17]Do not notify text change in iOS 17 after setting selection rects

Author: hellohuanlin

shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm

@@ -2380,21 +2380,10 @@ - (void)setSelectionRects:(NSArray*)encodedRects {
                                                          : NSWritingDirectionRightToLeft]];
   }
 
-  BOOL shouldNotifyTextChange = NO;
-  if (@available(iOS 17, *)) {
-    // Force UIKit to query the selectionRects again on iOS 17+
-    // This is to fix a bug on iOS 17+ where UIKit queries the outdated selectionRects after
-    // entering a character, resulting in auto-correction highlight region missing the last
-    // character.
-    shouldNotifyTextChange = YES;
-  }
-  if (shouldNotifyTextChange) {
-    [_activeView.inputDelegate textWillChange:_activeView];
-  }
+  // TODO(hellohuanlin): Investigate why notifying the text input system about text changes (via
+  // textWillChange and textDidChange APIs) causes a bug where we cannot enter text with IME
+  // keyboards. Issue: https://github.com/flutter/flutter/issues/133908
   _activeView.selectionRects = rectsAsRect;
-  if (shouldNotifyTextChange) {
-    [_activeView.inputDelegate textDidChange:_activeView];
-  }
 }
 
 - (void)startLiveTextInput {

shell/platform/darwin/ios/framework/Source/FlutterTextInputPluginTest.mm

@@ -436,38 +436,6 @@ - (void)testInputHiderOverlapWithTextWhenScribbleIsDisabledAfterIOS17AndDoesNotO
   }
 }
 
-- (void)testSetSelectionRectsNotifiesTextChangeAfterIOS17AndDoesNotNotifyBeforeIOS17 {
-  FlutterTextInputPlugin* myInputPlugin =
-      [[FlutterTextInputPlugin alloc] initWithDelegate:OCMClassMock([FlutterEngine class])];
-
-  FlutterMethodCall* setClientCall =
-      [FlutterMethodCall methodCallWithMethodName:@"TextInput.setClient"
-                                        arguments:@[ @(123), self.mutableTemplateCopy ]];
-  [myInputPlugin handleMethodCall:setClientCall
-                           result:^(id _Nullable result){
-                           }];
-
-  id mockInputDelegate = OCMProtocolMock(@protocol(UITextInputDelegate));
-  myInputPlugin.activeView.inputDelegate = mockInputDelegate;
-
-  NSArray<NSNumber*>* selectionRect = [NSArray arrayWithObjects:@0, @0, @100, @100, @0, @1, nil];
-  NSArray* selectionRects = [NSArray arrayWithObjects:selectionRect, nil];
-  FlutterMethodCall* methodCall =
-      [FlutterMethodCall methodCallWithMethodName:@"Scribble.setSelectionRects"
-                                        arguments:selectionRects];
-  [myInputPlugin handleMethodCall:methodCall
-                           result:^(id _Nullable result){
-                           }];
-
-  if (@available(iOS 17.0, *)) {
-    OCMVerify([mockInputDelegate textWillChange:myInputPlugin.activeView]);
-    OCMVerify([mockInputDelegate textDidChange:myInputPlugin.activeView]);
-  } else {
-    OCMVerify(never(), [mockInputDelegate textWillChange:myInputPlugin.activeView]);
-    OCMVerify(never(), [mockInputDelegate textDidChange:myInputPlugin.activeView]);
-  }
-}
-
 - (void)testTextRangeFromPositionMatchesUITextViewBehavior {
   FlutterTextInputView* inputView = [[FlutterTextInputView alloc] initWithOwner:textInputPlugin];
   FlutterTextPosition* fromPosition = [FlutterTextPosition positionWithIndex:2];