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fix fontWeight regression #15825

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fix fontWeight regression #15825

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b8753b4
fix https://github.com/facebook/react-native/pull/15162#issuecomment-…
Sep 6, 2017
b046ac1
address comments
Sep 6, 2017
f833f7d
remove indent
nihgwu Sep 6, 2017
2d0a0b1
Update RCTFont.mm
shergin Sep 7, 2017
90e26ec
Nits
shergin Sep 7, 2017
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51 changes: 32 additions & 19 deletions React/Views/RCTFont.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -36,33 +36,46 @@
typedef CGFloat RCTFontWeight;
static RCTFontWeight weightOfFont(UIFont *font)
{
static NSDictionary *nameToWeight;
static NSArray *fontNames;
static NSArray *fontWeights;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
nameToWeight = @{
@"normal": @(UIFontWeightRegular),
@"bold": @(UIFontWeightBold),
@"ultralight": @(UIFontWeightUltraLight),
@"thin": @(UIFontWeightThin),
@"light": @(UIFontWeightLight),
@"regular": @(UIFontWeightRegular),
@"medium": @(UIFontWeightMedium),
@"semibold": @(UIFontWeightSemibold),
@"bold": @(UIFontWeightBold),
@"heavy": @(UIFontWeightHeavy),
@"black": @(UIFontWeightBlack),
};
// We use two arrays instead of one map because
// the order is important for suffix matching.
fontNames = @[
@"normal",
@"ultralight",
@"thin",
@"light",
@"regular",
@"medium",
@"semibold",
@"bold",
@"heavy",
@"black"
];
fontWeights = @[
@(UIFontWeightRegular),
@(UIFontWeightUltraLight),
@(UIFontWeightThin),
@(UIFontWeightLight),
@(UIFontWeightRegular),
@(UIFontWeightMedium),
@(UIFontWeightSemibold),
@(UIFontWeightBold),
@(UIFontWeightHeavy),
@(UIFontWeightBlack)
];
});

for (NSString *name in nameToWeight) {
if ([font.fontName.lowercaseString hasSuffix:name]) {
return [nameToWeight[name] doubleValue];
for (NSInteger i = 0; i < fontNames.count; i++) {
if ([font.fontName.lowercaseString hasSuffix:fontNames[i]]) {
return (RCTFontWeight)[fontWeights[i] doubleValue];
}
}

NSDictionary *traits = [font.fontDescriptor objectForKey:UIFontDescriptorTraitsAttribute];
RCTFontWeight weight = [traits[UIFontWeightTrait] doubleValue];
return weight;
return (RCTFontWeight)[traits[UIFontWeightTrait] doubleValue];
}

static BOOL isItalicFont(UIFont *font)
Expand Down