react-native/Libraries/Text/RCTTextManager.m

107 lines
3.2 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTTextManager.h"
#import "RCTAssert.h"
#import "RCTConvert.h"
#import "RCTLog.h"
#import "RCTShadowRawText.h"
#import "RCTShadowText.h"
#import "RCTSparseArray.h"
#import "RCTText.h"
#import "UIView+React.h"
@implementation RCTTextManager
RCT_EXPORT_MODULE()
- (UIView *)view
{
return [[RCTText alloc] init];
}
- (RCTShadowView *)shadowView
{
return [[RCTShadowText alloc] init];
}
#pragma mark - View properties
RCT_IGNORE_VIEW_PROPERTY(backgroundColor);
RCT_REMAP_VIEW_PROPERTY(containerBackgroundColor, backgroundColor, UIColor)
#pragma mark - Shadow properties
RCT_EXPORT_SHADOW_PROPERTY(writingDirection, NSWritingDirection)
RCT_EXPORT_SHADOW_PROPERTY(color, UIColor)
RCT_EXPORT_SHADOW_PROPERTY(fontFamily, NSString)
RCT_EXPORT_SHADOW_PROPERTY(fontSize, CGFloat)
RCT_EXPORT_SHADOW_PROPERTY(fontWeight, NSString)
RCT_EXPORT_SHADOW_PROPERTY(fontStyle, NSString)
RCT_EXPORT_SHADOW_PROPERTY(isHighlighted, BOOL)
RCT_EXPORT_SHADOW_PROPERTY(letterSpacing, CGFloat)
RCT_EXPORT_SHADOW_PROPERTY(lineHeight, CGFloat)
RCT_EXPORT_SHADOW_PROPERTY(shadowOffset, CGSize)
RCT_EXPORT_SHADOW_PROPERTY(textAlign, NSTextAlignment)
RCT_REMAP_SHADOW_PROPERTY(backgroundColor, textBackgroundColor, UIColor)
RCT_REMAP_SHADOW_PROPERTY(containerBackgroundColor, backgroundColor, UIColor)
RCT_EXPORT_SHADOW_PROPERTY(numberOfLines, NSUInteger)
- (RCTViewManagerUIBlock)uiBlockToAmendWithShadowViewRegistry:(RCTSparseArray *)shadowViewRegistry
{
for (RCTShadowView *rootView in shadowViewRegistry.allObjects) {
if (![rootView isReactRootView]) {
// This isn't a root view
continue;
}
if (![rootView isTextDirty]) {
// No text processing to be done
continue;
}
NSMutableArray *queue = [NSMutableArray arrayWithObject:rootView];
for (NSInteger i = 0; i < [queue count]; i++) {
RCTShadowView *shadowView = queue[i];
RCTAssert([shadowView isTextDirty], @"Don't process any nodes that don't have dirty text");
if ([shadowView isKindOfClass:[RCTShadowText class]]) {
[(RCTShadowText *)shadowView recomputeText];
} else if ([shadowView isKindOfClass:[RCTShadowRawText class]]) {
RCTLogError(@"Raw text cannot be used outside of a <Text> tag. Not rendering string: '%@'",
[(RCTShadowRawText *)shadowView text]);
} else {
for (RCTShadowView *child in [shadowView reactSubviews]) {
if ([child isTextDirty]) {
[queue addObject:child];
}
}
}
[shadowView setTextComputed];
}
}
return ^(RCTUIManager *uiManager, RCTSparseArray *viewRegistry) {};
}
- (RCTViewManagerUIBlock)uiBlockToAmendWithShadowView:(RCTShadowText *)shadowView
{
NSNumber *reactTag = shadowView.reactTag;
UIEdgeInsets padding = shadowView.paddingAsInsets;
return ^(RCTUIManager *uiManager, RCTSparseArray *viewRegistry) {
RCTText *text = viewRegistry[reactTag];
text.contentInset = padding;
};
}
@end