mirror of
https://github.com/status-im/react-native.git
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3f6943c9ab
- [AdsManager] Correct back button functionality | Eric Vicenti - [ReactNative] Replace Backstack with BackAndroid | Eric Vicenti - [ReactNative] Better error message for EADDRINUSE | Alex Kotliarskyi - [ReactNative] npm install --save chalk | Alex Kotliarskyi - Removed redundant views and shadow views | Nick Lockwood - [ReactNative] Fix variable shadowing in RCTText | Tadeu Zagallo - [react-packager] check in image-size module | Amjad Masad - Refactored RCTLog and added facility to prepend extra data to the log message | Nick Lockwood - [ReactNative] Fix crash on image download | Tadeu Zagallo - [React Native] #WIP Modify RCTShadowText measure function to honor maxNumberOfLines property | Alex Akers - Add promise support to AsyncStorage | Spencer Ahrens - [ReactNative] Revert high-level Subscribable | Eric Vicenti - [ReactNative] wrong deprecated prop check in RCTConvert | Kevin Gozali - [ReactNative][MAdMan] Add type for image source, flowify AdsManagerObjectiveTypes | Philipp von Weitershausen
112 lines
3.0 KiB
Objective-C
112 lines
3.0 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 "RCTText.h"
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#import "RCTShadowText.h"
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#import "RCTUtils.h"
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#import "UIView+React.h"
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@implementation RCTText
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{
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NSLayoutManager *_layoutManager;
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NSTextStorage *_textStorage;
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NSTextContainer *_textContainer;
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}
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- (instancetype)initWithFrame:(CGRect)frame
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{
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if ((self = [super initWithFrame:frame])) {
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_textStorage = [[NSTextStorage alloc] init];
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self.contentMode = UIViewContentModeRedraw;
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}
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return self;
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}
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- (NSAttributedString *)attributedText
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{
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return [_textStorage copy];
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}
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- (void)setAttributedText:(NSAttributedString *)attributedText
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{
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[_textStorage setAttributedString:attributedText];
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[self setNeedsDisplay];
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}
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- (void)setTextContainer:(NSTextContainer *)textContainer
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{
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if ([_textContainer isEqual:textContainer]) return;
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_textContainer = textContainer;
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for (NSInteger i = _layoutManager.textContainers.count - 1; i >= 0; i--) {
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[_layoutManager removeTextContainerAtIndex:i];
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}
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[_layoutManager addTextContainer:_textContainer];
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[self setNeedsDisplay];
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}
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- (void)setLayoutManager:(NSLayoutManager *)layoutManager
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{
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if ([_layoutManager isEqual:layoutManager]) return;
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_layoutManager = layoutManager;
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for (NSLayoutManager *existingLayoutManager in _textStorage.layoutManagers) {
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[_textStorage removeLayoutManager:existingLayoutManager];
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}
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[_textStorage addLayoutManager:_layoutManager];
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[self setNeedsDisplay];
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}
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- (CGRect)textFrame
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{
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return UIEdgeInsetsInsetRect(self.bounds, _contentInset);
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}
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- (void)layoutSubviews
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{
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[super layoutSubviews];
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// The header comment for `size` says that a height of 0.0 should be enough,
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// but it isn't.
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_textContainer.size = CGSizeMake([self textFrame].size.width, CGFLOAT_MAX);
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}
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- (void)drawRect:(CGRect)rect
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{
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CGPoint origin = [self textFrame].origin;
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NSRange glyphRange = [_layoutManager glyphRangeForTextContainer:_textContainer];
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[_layoutManager drawBackgroundForGlyphRange:glyphRange atPoint:origin];
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[_layoutManager drawGlyphsForGlyphRange:glyphRange atPoint:origin];
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}
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- (NSNumber *)reactTagAtPoint:(CGPoint)point
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{
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CGFloat fraction;
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NSUInteger characterIndex = [_layoutManager characterIndexForPoint:point inTextContainer:_textContainer fractionOfDistanceBetweenInsertionPoints:&fraction];
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NSNumber *reactTag = nil;
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// If the point is not before (fraction == 0.0) the first character and not
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// after (fraction == 1.0) the last character, then the attribute is valid.
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if (_textStorage.length > 0 && (fraction > 0 || characterIndex > 0) && (fraction < 1 || characterIndex < _textStorage.length - 1)) {
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reactTag = [_textStorage attribute:RCTReactTagAttributeName atIndex:characterIndex effectiveRange:NULL];
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}
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return reactTag ?: self.reactTag;
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}
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@end
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