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Provide RTL support for RCTShadowText 

Reviewed By: majak

Differential Revision: D3524891

fbshipit-source-id: e67c35cc85b2764ab2eea3b14f7970afa06154b5
This commit is contained in:
Mengjue Wang 2016-07-15 18:58:04 -07:00 committed by Facebook Github Bot 6
parent 7aeaf7d941
commit 9e142a18dd
1 changed files with 18 additions and 0 deletions
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18
Libraries/Text/RCTShadowText.m
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@ -372,6 +372,24 @@ static css_dim_t RCTMeasure(void *context, float width, css_measure_mode_t width
}
NSTextAlignment newTextAlign = _textAlign ?: NSTextAlignmentNatural;
// The part below is to address textAlign for RTL language before setting paragraph style
// Since we can't get layout directly because this logic is currently run just before layout is calculatede
// We will climb up to the first node which style has been setted as non-inherit
if (newTextAlign == NSTextAlignmentRight || newTextAlign == NSTextAlignmentLeft) {
RCTShadowView *view = self;
while (view != nil && view.cssNode->style.direction == CSS_DIRECTION_INHERIT) {
view = [view reactSuperview];
}
if (view != nil && view.cssNode->style.direction == CSS_DIRECTION_RTL) {
if (newTextAlign == NSTextAlignmentRight) {
newTextAlign = NSTextAlignmentLeft;
} else if (newTextAlign == NSTextAlignmentLeft) {
newTextAlign = NSTextAlignmentRight;
}
}
}
if (self.textAlign != newTextAlign) {
self.textAlign = newTextAlign;
}