117 lines
2.9 KiB
Objective-C
117 lines
2.9 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 "RCTUITextField.h"
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#import <React/RCTUtils.h>
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#import <React/UIView+React.h>
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@implementation RCTUITextField
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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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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(_textDidChange)
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name:UITextFieldTextDidChangeNotification
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object:self];
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}
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return self;
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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- (void)_textDidChange
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{
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_textWasPasted = NO;
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}
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#pragma mark - Properties
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- (void)setTextContainerInset:(UIEdgeInsets)textContainerInset
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{
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_textContainerInset = textContainerInset;
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[self setNeedsLayout];
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}
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- (void)setPlaceholder:(NSString *)placeholder
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{
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[super setPlaceholder:placeholder];
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[self _updatePlaceholder];
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}
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- (void)setPlaceholderColor:(UIColor *)placeholderColor
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{
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_placeholderColor = placeholderColor;
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[self _updatePlaceholder];
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}
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- (void)_updatePlaceholder
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{
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if (self.placeholder == nil) {
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return;
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}
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NSMutableDictionary *attributes = [NSMutableDictionary new];
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if (_placeholderColor) {
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[attributes setObject:_placeholderColor forKey:NSForegroundColorAttributeName];
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}
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self.attributedPlaceholder = [[NSAttributedString alloc] initWithString:self.placeholder
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attributes:attributes];
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}
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#pragma mark - Caret Manipulation
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- (CGRect)caretRectForPosition:(UITextPosition *)position
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{
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if (_caretHidden) {
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return CGRectZero;
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}
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return [super caretRectForPosition:position];
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}
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#pragma mark - Positioning Overrides
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- (CGRect)textRectForBounds:(CGRect)bounds
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{
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return UIEdgeInsetsInsetRect([super textRectForBounds:bounds], _textContainerInset);
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}
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- (CGRect)editingRectForBounds:(CGRect)bounds
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{
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return [self textRectForBounds:bounds];
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}
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#pragma mark - Layout
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- (CGSize)intrinsicContentSize
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{
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// Note: `placeholder` defines intrinsic size for `<TextInput>`.
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NSString *text = self.placeholder ?: @"";
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CGSize size = [text sizeWithAttributes:@{NSFontAttributeName: self.font}];
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size = CGSizeMake(RCTCeilPixelValue(size.width), RCTCeilPixelValue(size.height));
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size.width += _textContainerInset.left + _textContainerInset.right;
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size.height += _textContainerInset.top + _textContainerInset.bottom;
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return size;
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}
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- (CGSize)sizeThatFits:(CGSize)size
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{
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CGSize intrinsicSize = self.intrinsicContentSize;
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return CGSizeMake(MIN(size.width, intrinsicSize.width), MIN(size.height, intrinsicSize.height));
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}
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@end
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