136 lines
4.4 KiB
Objective-C
136 lines
4.4 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTTextManager.h"
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#import <CSSLayout/CSSLayout.h>
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#import "RCTAccessibilityManager.h"
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#import "RCTAssert.h"
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#import "RCTConvert.h"
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#import "RCTLog.h"
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#import "RCTShadowRawText.h"
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#import "RCTShadowText.h"
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#import "RCTText.h"
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#import "RCTTextView.h"
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#import "UIView+React.h"
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static void collectDirtyNonTextDescendants(RCTShadowText *shadowView, NSMutableArray *nonTextDescendants) {
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for (RCTShadowView *child in shadowView.reactSubviews) {
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if ([child isKindOfClass:[RCTShadowText class]]) {
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collectDirtyNonTextDescendants((RCTShadowText *)child, nonTextDescendants);
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} else if ([child isKindOfClass:[RCTShadowRawText class]]) {
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// no-op
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} else if ([child isTextDirty]) {
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[nonTextDescendants addObject:child];
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}
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}
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}
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@interface RCTShadowText (Private)
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- (NSTextStorage *)buildTextStorageForWidth:(CGFloat)width widthMode:(CSSMeasureMode)widthMode;
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@end
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@implementation RCTTextManager
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RCT_EXPORT_MODULE()
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- (UIView *)view
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{
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return [RCTText new];
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}
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- (RCTShadowView *)shadowView
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{
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return [RCTShadowText new];
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}
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#pragma mark - Shadow properties
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RCT_EXPORT_SHADOW_PROPERTY(color, UIColor)
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RCT_EXPORT_SHADOW_PROPERTY(fontFamily, NSString)
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RCT_EXPORT_SHADOW_PROPERTY(fontSize, CGFloat)
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RCT_EXPORT_SHADOW_PROPERTY(fontWeight, NSString)
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RCT_EXPORT_SHADOW_PROPERTY(fontStyle, NSString)
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RCT_EXPORT_SHADOW_PROPERTY(fontVariant, NSArray)
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RCT_EXPORT_SHADOW_PROPERTY(isHighlighted, BOOL)
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RCT_EXPORT_SHADOW_PROPERTY(letterSpacing, CGFloat)
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RCT_EXPORT_SHADOW_PROPERTY(lineHeight, CGFloat)
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RCT_EXPORT_SHADOW_PROPERTY(numberOfLines, NSUInteger)
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RCT_EXPORT_SHADOW_PROPERTY(ellipsizeMode, NSLineBreakMode)
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RCT_EXPORT_SHADOW_PROPERTY(textAlign, NSTextAlignment)
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RCT_EXPORT_SHADOW_PROPERTY(textDecorationStyle, NSUnderlineStyle)
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RCT_EXPORT_SHADOW_PROPERTY(textDecorationColor, UIColor)
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RCT_EXPORT_SHADOW_PROPERTY(textDecorationLine, RCTTextDecorationLineType)
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RCT_EXPORT_SHADOW_PROPERTY(writingDirection, NSWritingDirection)
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RCT_EXPORT_SHADOW_PROPERTY(allowFontScaling, BOOL)
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RCT_EXPORT_SHADOW_PROPERTY(opacity, CGFloat)
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RCT_EXPORT_SHADOW_PROPERTY(textShadowOffset, CGSize)
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RCT_EXPORT_SHADOW_PROPERTY(textShadowRadius, CGFloat)
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RCT_EXPORT_SHADOW_PROPERTY(textShadowColor, UIColor)
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RCT_EXPORT_SHADOW_PROPERTY(adjustsFontSizeToFit, BOOL)
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RCT_EXPORT_SHADOW_PROPERTY(minimumFontScale, CGFloat)
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RCT_EXPORT_SHADOW_PROPERTY(selectable, BOOL)
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- (RCTViewManagerUIBlock)uiBlockToAmendWithShadowViewRegistry:(NSDictionary<NSNumber *, RCTShadowView *> *)shadowViewRegistry
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{
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for (RCTShadowView *rootView in shadowViewRegistry.allValues) {
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if (![rootView isReactRootView]) {
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// This isn't a root view
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continue;
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}
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if (![rootView isTextDirty]) {
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// No text processing to be done
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continue;
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}
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NSMutableArray<RCTShadowView *> *queue = [NSMutableArray arrayWithObject:rootView];
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for (NSInteger i = 0; i < queue.count; i++) {
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RCTShadowView *shadowView = queue[i];
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RCTAssert([shadowView isTextDirty], @"Don't process any nodes that don't have dirty text");
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if ([shadowView isKindOfClass:[RCTShadowText class]]) {
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((RCTShadowText *)shadowView).fontSizeMultiplier = self.bridge.accessibilityManager.multiplier;
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[(RCTShadowText *)shadowView recomputeText];
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collectDirtyNonTextDescendants((RCTShadowText *)shadowView, queue);
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} else if ([shadowView isKindOfClass:[RCTShadowRawText class]]) {
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RCTLogError(@"Raw text cannot be used outside of a <Text> tag. Not rendering string: '%@'",
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[(RCTShadowRawText *)shadowView text]);
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} else {
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for (RCTShadowView *child in [shadowView reactSubviews]) {
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if ([child isTextDirty]) {
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[queue addObject:child];
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}
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}
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}
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[shadowView setTextComputed];
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}
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}
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return nil;
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}
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- (RCTViewManagerUIBlock)uiBlockToAmendWithShadowView:(RCTShadowText *)shadowView
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{
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NSNumber *reactTag = shadowView.reactTag;
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UIEdgeInsets padding = shadowView.paddingAsInsets;
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return ^(RCTUIManager *uiManager, NSDictionary<NSNumber *, RCTText *> *viewRegistry) {
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RCTText *text = viewRegistry[reactTag];
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text.contentInset = padding;
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};
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}
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@end
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