Revert "Do not default to downstream affinity on iOS insertText (#13852)" (#14053)

GaryQian · web-flow · commit bcb826759d4a · 2019-11-28T07:34:40.000+09:00
This reverts commit 0d60e1a.
diff --git a/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm b/shell/platform/darwin/ios/framework/Source/FlutterTextInputPlugin.mm
@@ -621,9 +621,7 @@ - (BOOL)hasText {
 }
 
 - (void)insertText:(NSString*)text {
-  // The affinity is unknown here. Set to "" so that Flutter interprets it
-  // as ambiguous and uses a fallback affinity.
-  _selectionAffinity = "";
+  _selectionAffinity = _kTextAffinityDownstream;
   [self replaceRange:_selectedTextRange withText:text];
 }
 

Original file line number	Diff line number	Diff line change
`@@ -621,9 +621,7 @@ - (BOOL)hasText {`
`621`	`621`	`}`
`622`	`622`
`623`	`623`	`- (void)insertText:(NSString*)text {`
`624`		`- // The affinity is unknown here. Set to "" so that Flutter interprets it`
`625`		`- // as ambiguous and uses a fallback affinity.`
`626`		`- _selectionAffinity = "";`
	`624`	`+ _selectionAffinity = _kTextAffinityDownstream;`
`627`	`625`	`[self replaceRange:_selectedTextRange withText:text];`
`628`	`626`	`}`
`629`	`627`