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[iOS] Add Fabric dynamic color support
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124 changes: 124 additions & 0 deletions
124
...tCommon/react/renderer/graphics/platform/ios/react/renderer/graphics/HostPlatformColor.mm
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| /* | ||
| * Copyright (c) Meta Platforms, Inc. and affiliates. | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
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| #import "HostPlatformColor.h" | ||
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| #import <Foundation/Foundation.h> | ||
| #import <React/RCTConvert.h> | ||
| #import <UIKit/UIKit.h> | ||
| #import <react/utils/ManagedObjectWrapper.h> | ||
| #import <string> | ||
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| using namespace facebook::react; | ||
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| NS_ASSUME_NONNULL_BEGIN | ||
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| namespace facebook::react { | ||
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| namespace { | ||
| UIColor *_Nullable UIColorFromDynamicColor(const facebook::react::DynamicColor &dynamicColor) | ||
| { | ||
| int32_t light = dynamicColor.lightColor; | ||
| int32_t dark = dynamicColor.darkColor; | ||
| int32_t highContrastLight = dynamicColor.highContrastLightColor; | ||
| int32_t highContrastDark = dynamicColor.highContrastDarkColor; | ||
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| UIColor *lightColor = [RCTConvert UIColor:@(light)]; | ||
| UIColor *darkColor = [RCTConvert UIColor:@(dark)]; | ||
| UIColor *highContrastLightColor = [RCTConvert UIColor:@(highContrastLight)]; | ||
| UIColor *highContrastDarkColor = [RCTConvert UIColor:@(highContrastDark)]; | ||
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| if (lightColor != nil && darkColor != nil) { | ||
| UIColor *color = [UIColor colorWithDynamicProvider:^UIColor *_Nonnull(UITraitCollection *_Nonnull collection) { | ||
| if (collection.userInterfaceStyle == UIUserInterfaceStyleDark) { | ||
| if (collection.accessibilityContrast == UIAccessibilityContrastHigh && highContrastDarkColor != nil) { | ||
| return highContrastDarkColor; | ||
| } else { | ||
| return darkColor; | ||
| } | ||
| } else { | ||
| if (collection.accessibilityContrast == UIAccessibilityContrastHigh && highContrastLightColor != nil) { | ||
| return highContrastLightColor; | ||
| } else { | ||
| return lightColor; | ||
| } | ||
| } | ||
| }]; | ||
| return color; | ||
| } else { | ||
| return nil; | ||
| } | ||
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| return nil; | ||
| } | ||
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| int32_t ColorFromUIColor(UIColor *color) | ||
| { | ||
| float ratio = 255; | ||
| CGFloat rgba[4]; | ||
| [color getRed:&rgba[0] green:&rgba[1] blue:&rgba[2] alpha:&rgba[3]]; | ||
| return ((int32_t)round((float)rgba[3] * ratio) & 0xff) << 24 | ((int)round((float)rgba[0] * ratio) & 0xff) << 16 | | ||
| ((int)round((float)rgba[1] * ratio) & 0xff) << 8 | ((int)round((float)rgba[2] * ratio) & 0xff); | ||
| } | ||
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| int32_t ColorFromUIColor(const std::shared_ptr<void> &uiColor) | ||
| { | ||
| UIColor *color = (UIColor *)unwrapManagedObject(uiColor); | ||
| if (color) { | ||
| UITraitCollection *currentTraitCollection = [UITraitCollection currentTraitCollection]; | ||
| color = [color resolvedColorWithTraitCollection:currentTraitCollection]; | ||
| return ColorFromUIColor(color); | ||
| } | ||
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| return 0; | ||
| } | ||
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| UIColor *_Nullable UIColorFromComponentsColor(const facebook::react::ColorComponents &components) | ||
| { | ||
| return [UIColor colorWithRed:components.red green:components.green blue:components.blue alpha:components.alpha]; | ||
| } | ||
| } // anonymous namespace | ||
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| Color::Color(int32_t color) | ||
| { | ||
| uiColor_ = wrapManagedObject([RCTConvert UIColor:@(color)]); | ||
| } | ||
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| Color::Color(const DynamicColor &dynamicColor) | ||
| { | ||
| uiColor_ = wrapManagedObject(UIColorFromDynamicColor(dynamicColor)); | ||
| } | ||
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| Color::Color(const ColorComponents &components) | ||
| { | ||
| uiColor_ = wrapManagedObject(UIColorFromComponentsColor(components)); | ||
| } | ||
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| Color::Color(std::shared_ptr<void> uiColor) | ||
| { | ||
| uiColor_ = std::move(uiColor); | ||
| } | ||
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| bool Color::operator==(const Color &other) const | ||
| { | ||
| return (!uiColor_ && !other.uiColor_) || | ||
| (uiColor_ && other.uiColor_ && | ||
| [unwrapManagedObject(getUIColor()) isEqual:unwrapManagedObject(other.getUIColor())]); | ||
| } | ||
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| bool Color::operator!=(const Color &other) const | ||
| { | ||
| return !(*this == other); | ||
| } | ||
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| int32_t Color::getColor() const | ||
| { | ||
| return ColorFromUIColor(uiColor_); | ||
| } | ||
| } // namespace facebook::react | ||
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| NS_ASSUME_NONNULL_END |
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