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Revert of [D13948951]Apply the fix for CJK languages on single-line test fields. 

Summary:
This PR (https://github.com/facebook/react-native/pull/22546) broke single line text inputs. After inputting some text and tapping away, the text input reverts back to default text.

Revert solved the issue.

Reviewed By: cpojer

Differential Revision: D14185897

fbshipit-source-id: cc7f0f2ebfb0494062afbc628c4fe27ad27fb1c6
This commit is contained in:
Peter Argany 2019-02-22 10:55:58 -08:00 committed by Mike Grabowski
parent 6aca514b3a
commit a38dc732bb
1 changed files with 0 additions and 44 deletions
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44
Libraries/Text/TextInput/Singleline/RCTUITextField.m
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@ -14,7 +14,6 @@
@implementation RCTUITextField {
RCTBackedTextFieldDelegateAdapter *_textInputDelegateAdapter;
NSMutableAttributedString *_attributesHolder;
}
- (instancetype)initWithFrame:(CGRect)frame
@ -26,7 +25,6 @@
object:self];
_textInputDelegateAdapter = [[RCTBackedTextFieldDelegateAdapter alloc] initWithTextField:self];
_attributesHolder = [[NSMutableAttributedString alloc] init];
}
return self;
@ -119,48 +117,6 @@
return [super caretRectForPosition:position];
}
#pragma mark - Fix for CJK Languages
/*
* The workaround to fix inputting complex locales (like CJK languages).
* When we use `setAttrbutedText:` while user is inputting text in a complex
* locale (like Chinese, Japanese or Korean), some internal state breaks and
* input stops working.
*
* To workaround that, we don't skip underlying attributedString in the text
* field if only attributes were changed. We keep track of these attributes in
* a local variable.
*
* There are two methods that are altered by this workaround:
*
* (1) `-setAttributedText:`
* Applies the attributed string change to a local variable `_attributesHolder` instead of calling `-[super setAttributedText:]`.
* If new attributed text differs from the existing one only in attributes,
* skips `-[super setAttributedText:`] completely.
*
* (2) `-attributedText`
* Return `_attributesHolder` context.
* Updates `_atributesHolder` before returning if the underlying `super.attributedText.string` was changed.
*
*/
- (void)setAttributedText:(NSAttributedString *)attributedText
{
BOOL textWasChanged = ![_attributesHolder.string isEqualToString:attributedText.string];
[_attributesHolder setAttributedString:attributedText];
if (textWasChanged) {
[super setAttributedText:attributedText];
}
}
- (NSAttributedString *)attributedText
{
if (![super.attributedText.string isEqualToString:_attributesHolder.string]) {
[_attributesHolder setAttributedString:super.attributedText];
}
return _attributesHolder;
}
#pragma mark - Positioning Overrides