mirror of
https://github.com/zhigang1992/GitHawk.git
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812 lines
27 KiB
Objective-C
Executable File
812 lines
27 KiB
Objective-C
Executable File
//
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// SlackTextViewController
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// https://github.com/slackhq/SlackTextViewController
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//
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// Copyright 2014-2016 Slack Technologies, Inc.
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// Licence: MIT-Licence
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//
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#import "SLKTextInputbar.h"
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#import "SLKTextView.h"
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#import "SLKInputAccessoryView.h"
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#import "SLKTextView+SLKAdditions.h"
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#import "UIView+SLKAdditions.h"
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#import "SLKUIConstants.h"
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NSString * const SLKTextInputbarDidMoveNotification = @"SLKTextInputbarDidMoveNotification";
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@interface SLKTextInputbar ()
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@property (nonatomic, strong) NSLayoutConstraint *textViewBottomMarginC;
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@property (nonatomic, strong) NSLayoutConstraint *contentViewHC;
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@property (nonatomic, strong) NSLayoutConstraint *leftButtonWC;
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@property (nonatomic, strong) NSLayoutConstraint *leftButtonHC;
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@property (nonatomic, strong) NSLayoutConstraint *leftMarginWC;
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@property (nonatomic, strong) NSLayoutConstraint *leftButtonBottomMarginC;
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@property (nonatomic, strong) NSLayoutConstraint *rightButtonWC;
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@property (nonatomic, strong) NSLayoutConstraint *rightMarginWC;
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@property (nonatomic, strong) NSLayoutConstraint *rightButtonTopMarginC;
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@property (nonatomic, strong) NSLayoutConstraint *rightButtonBottomMarginC;
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@property (nonatomic, strong) NSLayoutConstraint *editorContentViewHC;
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@property (nonatomic, strong) NSArray *charCountLabelVCs;
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@property (nonatomic, strong) UILabel *charCountLabel;
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@property (nonatomic) CGPoint previousOrigin;
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@property (nonatomic, strong) Class textViewClass;
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@property (nonatomic, getter=isHidden) BOOL hidden; // Required override
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@end
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@implementation SLKTextInputbar
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@synthesize textView = _textView;
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@synthesize contentView = _contentView;
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@synthesize inputAccessoryView = _inputAccessoryView;
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@synthesize hidden = _hidden;
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#pragma mark - Initialization
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- (instancetype)initWithTextViewClass:(Class)textViewClass
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{
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if (self = [super init]) {
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self.textViewClass = textViewClass;
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[self slk_commonInit];
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}
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return self;
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}
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- (id)init
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{
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if (self = [super init]) {
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[self slk_commonInit];
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}
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return self;
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}
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- (instancetype)initWithCoder:(NSCoder *)coder
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{
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if (self = [super initWithCoder:coder]) {
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[self slk_commonInit];
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}
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return self;
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}
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- (void)slk_commonInit
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{
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self.charCountLabelNormalColor = [UIColor lightGrayColor];
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self.charCountLabelWarningColor = [UIColor redColor];
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self.autoHideRightButton = YES;
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self.editorContentViewHeight = 38.0;
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self.contentInset = UIEdgeInsetsMake(5.0, 8.0, 5.0, 8.0);
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[self addSubview:self.editorContentView];
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[self addSubview:self.leftButton];
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[self addSubview:self.rightButton];
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[self addSubview:self.textView];
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[self addSubview:self.charCountLabel];
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[self addSubview:self.contentView];
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[self slk_setupViewConstraints];
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[self slk_updateConstraintConstants];
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self.counterStyle = SLKCounterStyleNone;
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self.counterPosition = SLKCounterPositionTop;
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[self slk_registerNotifications];
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[self slk_registerTo:self.layer forSelector:@selector(position)];
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[self slk_registerTo:self.leftButton.imageView forSelector:@selector(image)];
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[self slk_registerTo:self.rightButton.titleLabel forSelector:@selector(font)];
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}
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#pragma mark - UIView Overrides
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- (void)layoutIfNeeded
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{
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if (self.constraints.count == 0 || !self.window) {
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return;
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}
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[self slk_updateConstraintConstants];
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[super layoutIfNeeded];
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}
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// Compensate for layout bug in iOS 11 Beta 2
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// https://github.com/Recfive/SlackTextViewController/commit/5faf3952fb1623508120c7f44291bfb0259f25af
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- (void)layoutSubviews
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{
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[super layoutSubviews];
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[self bringSubviewToFront:self.textView];
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[self bringSubviewToFront:self.rightButton];
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[self bringSubviewToFront:self.leftButton];
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}
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- (CGSize)intrinsicContentSize
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{
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return CGSizeMake(UIViewNoIntrinsicMetric, [self minimumInputbarHeight]);
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}
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+ (BOOL)requiresConstraintBasedLayout
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{
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return YES;
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}
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#pragma mark - Getters
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- (SLKTextView *)textView
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{
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if (!_textView) {
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Class class = self.textViewClass ? : [SLKTextView class];
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_textView = [[class alloc] init];
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_textView.translatesAutoresizingMaskIntoConstraints = NO;
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_textView.font = [UIFont systemFontOfSize:15.0];
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_textView.maxNumberOfLines = [self slk_defaultNumberOfLines];
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_textView.keyboardType = UIKeyboardTypeTwitter;
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_textView.returnKeyType = UIReturnKeyDefault;
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_textView.enablesReturnKeyAutomatically = YES;
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_textView.scrollIndicatorInsets = UIEdgeInsetsMake(0.0, -1.0, 0.0, 1.0);
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_textView.textContainerInset = UIEdgeInsetsMake(8.0, 4.0, 8.0, 0.0);
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_textView.layer.cornerRadius = 5.0;
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_textView.layer.borderWidth = 1 / [UIScreen mainScreen].scale;
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_textView.layer.borderColor = [UIColor colorWithRed:200.0/255.0 green:200.0/255.0 blue:205.0/255.0 alpha:1.0].CGColor;
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}
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return _textView;
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}
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- (UIView *)contentView
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{
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if (!_contentView) {
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_contentView = [UIView new];
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_contentView.translatesAutoresizingMaskIntoConstraints = NO;
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_contentView.backgroundColor = [UIColor clearColor];
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_contentView.clipsToBounds = YES;
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}
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return _contentView;
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}
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- (SLKInputAccessoryView *)inputAccessoryView
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{
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if (!_inputAccessoryView) {
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_inputAccessoryView = [[SLKInputAccessoryView alloc] initWithFrame:CGRectZero];
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_inputAccessoryView.backgroundColor = [UIColor clearColor];
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_inputAccessoryView.userInteractionEnabled = NO;
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}
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return _inputAccessoryView;
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}
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- (UIButton *)leftButton
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{
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if (!_leftButton) {
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_leftButton = [UIButton buttonWithType:UIButtonTypeSystem];
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_leftButton.translatesAutoresizingMaskIntoConstraints = NO;
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_leftButton.titleLabel.font = [UIFont systemFontOfSize:15.0];
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}
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return _leftButton;
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}
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- (UIButton *)rightButton
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{
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if (!_rightButton) {
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_rightButton = [UIButton buttonWithType:UIButtonTypeSystem];
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_rightButton.translatesAutoresizingMaskIntoConstraints = NO;
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_rightButton.titleLabel.font = [UIFont boldSystemFontOfSize:15.0];
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_rightButton.enabled = NO;
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NSString *title = NSLocalizedString(@"Send", nil);
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[_rightButton setTitle:title forState:UIControlStateNormal];
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}
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return _rightButton;
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}
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- (UIView *)editorContentView
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{
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if (!_editorContentView) {
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_editorContentView = [UIView new];
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_editorContentView.translatesAutoresizingMaskIntoConstraints = NO;
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_editorContentView.backgroundColor = self.backgroundColor;
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_editorContentView.clipsToBounds = YES;
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_editorContentView.hidden = YES;
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[_editorContentView addSubview:self.editorTitle];
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[_editorContentView addSubview:self.editorLeftButton];
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[_editorContentView addSubview:self.editorRightButton];
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NSDictionary *views = @{@"label": self.editorTitle,
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@"leftButton": self.editorLeftButton,
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@"rightButton": self.editorRightButton,
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};
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NSDictionary *metrics = @{@"left" : @(self.contentInset.left),
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@"right" : @(self.contentInset.right)
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};
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[_editorContentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-(left)-[leftButton(60)]-(left)-[label(>=0)]-(right)-[rightButton(60)]-(<=right)-|" options:0 metrics:metrics views:views]];
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[_editorContentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[leftButton]|" options:0 metrics:metrics views:views]];
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[_editorContentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[rightButton]|" options:0 metrics:metrics views:views]];
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[_editorContentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[label]|" options:0 metrics:metrics views:views]];
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}
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return _editorContentView;
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}
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- (UILabel *)editorTitle
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{
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if (!_editorTitle) {
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_editorTitle = [UILabel new];
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_editorTitle.translatesAutoresizingMaskIntoConstraints = NO;
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_editorTitle.textAlignment = NSTextAlignmentCenter;
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_editorTitle.backgroundColor = [UIColor clearColor];
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_editorTitle.font = [UIFont boldSystemFontOfSize:15.0];
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NSString *title = NSLocalizedString(@"Editing Message", nil);
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_editorTitle.text = title;
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}
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return _editorTitle;
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}
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- (UIButton *)editorLeftButton
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{
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if (!_editorLeftButton) {
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_editorLeftButton = [UIButton buttonWithType:UIButtonTypeSystem];
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_editorLeftButton.translatesAutoresizingMaskIntoConstraints = NO;
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_editorLeftButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
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_editorLeftButton.titleLabel.font = [UIFont systemFontOfSize:15.0];
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NSString *title = NSLocalizedString(@"Cancel", nil);
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[_editorLeftButton setTitle:title forState:UIControlStateNormal];
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}
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return _editorLeftButton;
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}
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- (UIButton *)editorRightButton
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{
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if (!_editorRightButton) {
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_editorRightButton = [UIButton buttonWithType:UIButtonTypeSystem];
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_editorRightButton.translatesAutoresizingMaskIntoConstraints = NO;
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_editorRightButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentRight;
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_editorRightButton.titleLabel.font = [UIFont boldSystemFontOfSize:15.0];
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_editorRightButton.enabled = NO;
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NSString *title = NSLocalizedString(@"Save", nil);
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[_editorRightButton setTitle:title forState:UIControlStateNormal];
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}
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return _editorRightButton;
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}
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- (UILabel *)charCountLabel
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{
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if (!_charCountLabel) {
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_charCountLabel = [UILabel new];
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_charCountLabel.translatesAutoresizingMaskIntoConstraints = NO;
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_charCountLabel.backgroundColor = [UIColor clearColor];
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_charCountLabel.textAlignment = NSTextAlignmentRight;
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_charCountLabel.font = [UIFont systemFontOfSize:11.0];
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_charCountLabel.hidden = NO;
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}
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return _charCountLabel;
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}
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- (BOOL)isHidden
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{
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return _hidden;
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}
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- (CGFloat)minimumInputbarHeight
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{
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CGFloat minimumHeight = self.textView.intrinsicContentSize.height;
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minimumHeight += self.contentInset.top;
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minimumHeight += self.slk_bottomMargin;
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return minimumHeight;
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}
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- (CGFloat)appropriateHeight
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{
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CGFloat height = 0.0;
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CGFloat minimumHeight = [self minimumInputbarHeight];
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if (self.textView.numberOfLines == 1) {
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height = minimumHeight;
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}
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else if (self.textView.numberOfLines < self.textView.maxNumberOfLines) {
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height = [self slk_inputBarHeightForLines:self.textView.numberOfLines];
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}
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else {
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height = [self slk_inputBarHeightForLines:self.textView.maxNumberOfLines];
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}
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if (height < minimumHeight) {
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height = minimumHeight;
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}
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if (self.isEditing) {
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height += self.editorContentViewHeight;
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}
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return roundf(height);
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}
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- (BOOL)limitExceeded
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{
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NSString *text = [self.textView.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
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if (self.maxCharCount > 0 && text.length > self.maxCharCount) {
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return YES;
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}
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return NO;
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}
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- (CGFloat)slk_inputBarHeightForLines:(NSUInteger)numberOfLines
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{
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CGFloat height = self.textView.intrinsicContentSize.height;
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height -= self.textView.font.lineHeight;
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height += roundf(self.textView.font.lineHeight*numberOfLines);
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height += self.contentInset.top;
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height += self.slk_bottomMargin;
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return height;
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}
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- (CGFloat)slk_bottomMargin
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{
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CGFloat margin = self.contentInset.bottom;
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margin += self.slk_contentViewHeight;
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return margin;
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}
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- (CGFloat)slk_contentViewHeight
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{
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if (!self.editing) {
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return CGRectGetHeight(self.contentView.frame);
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}
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return 0.0;
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}
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- (CGFloat)slk_appropriateRightButtonWidth
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{
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if (self.autoHideRightButton) {
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if (self.textView.text.length == 0) {
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return 0.0;
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}
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}
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return [self.rightButton intrinsicContentSize].width;
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}
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- (CGFloat)slk_appropriateRightButtonMargin
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{
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if (self.autoHideRightButton) {
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if (self.textView.text.length == 0) {
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return 0.0;
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}
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}
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return self.contentInset.right;
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}
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- (NSUInteger)slk_defaultNumberOfLines
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{
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if (SLK_IS_IPAD) {
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return 8;
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}
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else if (SLK_IS_IPHONE4) {
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return 4;
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}
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else {
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return 6;
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}
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}
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#pragma mark - Setters
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- (void)setBackgroundColor:(UIColor *)color
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{
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self.barTintColor = color;
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self.editorContentView.backgroundColor = color;
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}
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- (void)setAutoHideRightButton:(BOOL)hide
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{
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if (self.autoHideRightButton == hide) {
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return;
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}
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_autoHideRightButton = hide;
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self.rightButtonWC.constant = [self slk_appropriateRightButtonWidth];
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self.rightMarginWC.constant = [self slk_appropriateRightButtonMargin];
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[self layoutIfNeeded];
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}
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- (void)setContentInset:(UIEdgeInsets)insets
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{
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if (UIEdgeInsetsEqualToEdgeInsets(self.contentInset, insets)) {
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return;
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}
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if (UIEdgeInsetsEqualToEdgeInsets(self.contentInset, UIEdgeInsetsZero)) {
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_contentInset = insets;
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return;
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}
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_contentInset = insets;
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// Add new constraints
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[self removeConstraints:self.constraints];
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[self slk_setupViewConstraints];
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// Add constant values and refresh layout
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[self slk_updateConstraintConstants];
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[super layoutIfNeeded];
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}
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- (void)setEditing:(BOOL)editing
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{
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if (self.isEditing == editing) {
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return;
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}
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_editing = editing;
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_editorContentView.hidden = !editing;
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self.contentViewHC.active = editing;
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[super setNeedsLayout];
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[super layoutIfNeeded];
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}
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- (void)setHidden:(BOOL)hidden
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{
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// We don't call super here, since we want to avoid to visually hide the view.
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// The hidden render state is handled by the view controller.
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_hidden = hidden;
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if (!self.isEditing) {
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self.contentViewHC.active = hidden;
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[super setNeedsLayout];
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[super layoutIfNeeded];
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}
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}
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- (void)setCounterPosition:(SLKCounterPosition)counterPosition
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{
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if (self.counterPosition == counterPosition && self.charCountLabelVCs) {
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return;
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}
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// Clears the previous constraints
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if (_charCountLabelVCs.count > 0) {
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[self removeConstraints:_charCountLabelVCs];
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_charCountLabelVCs = nil;
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}
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_counterPosition = counterPosition;
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NSDictionary *views = @{@"rightButton": self.rightButton,
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@"charCountLabel": self.charCountLabel
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};
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NSDictionary *metrics = @{@"top" : @(self.contentInset.top),
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@"bottom" : @(-self.slk_bottomMargin/2.0)
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};
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// Constraints are different depending of the counter's position type
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if (counterPosition == SLKCounterPositionBottom) {
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_charCountLabelVCs = [NSLayoutConstraint constraintsWithVisualFormat:@"V:[charCountLabel]-(bottom)-[rightButton]" options:0 metrics:metrics views:views];
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}
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else {
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_charCountLabelVCs = [NSLayoutConstraint constraintsWithVisualFormat:@"V:|-(top@750)-[charCountLabel]-(>=0)-|" options:0 metrics:metrics views:views];
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}
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[self addConstraints:self.charCountLabelVCs];
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}
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#pragma mark - Text Editing
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- (BOOL)canEditText:(NSString *)text
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{
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if ((self.isEditing && [self.textView.text isEqualToString:text]) || self.isHidden) {
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return NO;
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}
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return YES;
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}
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- (void)beginTextEditing
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{
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if (self.isEditing || self.isHidden) {
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return;
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}
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self.editing = YES;
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[self slk_updateConstraintConstants];
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if (!self.isFirstResponder) {
|
|
[self layoutIfNeeded];
|
|
}
|
|
}
|
|
|
|
- (void)endTextEdition
|
|
{
|
|
if (!self.isEditing || self.isHidden) {
|
|
return;
|
|
}
|
|
|
|
self.editing = NO;
|
|
|
|
[self slk_updateConstraintConstants];
|
|
}
|
|
|
|
|
|
#pragma mark - Character Counter
|
|
|
|
- (void)slk_updateCounter
|
|
{
|
|
NSString *text = [self.textView.text stringByTrimmingCharactersInSet:[NSCharacterSet newlineCharacterSet]];
|
|
NSString *counter = nil;
|
|
|
|
if (self.counterStyle == SLKCounterStyleNone) {
|
|
counter = [NSString stringWithFormat:@"%lu", (unsigned long)text.length];
|
|
}
|
|
if (self.counterStyle == SLKCounterStyleSplit) {
|
|
counter = [NSString stringWithFormat:@"%lu/%lu", (unsigned long)text.length, (unsigned long)self.maxCharCount];
|
|
}
|
|
if (self.counterStyle == SLKCounterStyleCountdown) {
|
|
counter = [NSString stringWithFormat:@"%ld", (long)(text.length - self.maxCharCount)];
|
|
}
|
|
if (self.counterStyle == SLKCounterStyleCountdownReversed)
|
|
{
|
|
counter = [NSString stringWithFormat:@"%ld", (long)(self.maxCharCount - text.length)];
|
|
}
|
|
|
|
self.charCountLabel.text = counter;
|
|
self.charCountLabel.textColor = [self limitExceeded] ? self.charCountLabelWarningColor : self.charCountLabelNormalColor;
|
|
}
|
|
|
|
|
|
#pragma mark - Notification Events
|
|
|
|
- (void)slk_didChangeTextViewText:(NSNotification *)notification
|
|
{
|
|
SLKTextView *textView = (SLKTextView *)notification.object;
|
|
|
|
// Skips this it's not the expected textView.
|
|
if (![textView isEqual:self.textView]) {
|
|
return;
|
|
}
|
|
|
|
// Updates the char counter label
|
|
if (self.maxCharCount > 0) {
|
|
[self slk_updateCounter];
|
|
}
|
|
|
|
if (self.autoHideRightButton && !self.isEditing)
|
|
{
|
|
CGFloat rightButtonNewWidth = [self slk_appropriateRightButtonWidth];
|
|
|
|
// Only updates if the width did change
|
|
if (self.rightButtonWC.constant == rightButtonNewWidth) {
|
|
return;
|
|
}
|
|
|
|
self.rightButtonWC.constant = rightButtonNewWidth;
|
|
self.rightMarginWC.constant = [self slk_appropriateRightButtonMargin];
|
|
[self.rightButton layoutIfNeeded]; // Avoids the right button to stretch when animating the constraint changes
|
|
|
|
BOOL bounces = self.bounces && [self.textView isFirstResponder];
|
|
|
|
if (self.window) {
|
|
[self slk_animateLayoutIfNeededWithBounce:bounces
|
|
options:UIViewAnimationOptionCurveEaseInOut|UIViewAnimationOptionBeginFromCurrentState|UIViewAnimationOptionAllowUserInteraction
|
|
animations:NULL];
|
|
}
|
|
else {
|
|
[self layoutIfNeeded];
|
|
}
|
|
}
|
|
}
|
|
|
|
- (void)slk_didChangeTextViewContentSize:(NSNotification *)notification
|
|
{
|
|
if (self.maxCharCount > 0) {
|
|
BOOL shouldHide = (self.textView.numberOfLines == 1) || self.editing;
|
|
self.charCountLabel.hidden = shouldHide;
|
|
}
|
|
}
|
|
|
|
- (void)slk_didChangeContentSizeCategory:(NSNotification *)notification
|
|
{
|
|
if (!self.textView.isDynamicTypeEnabled) {
|
|
return;
|
|
}
|
|
|
|
[self layoutIfNeeded];
|
|
}
|
|
|
|
|
|
#pragma mark - View Auto-Layout
|
|
|
|
- (void)slk_setupViewConstraints
|
|
{
|
|
NSDictionary *views = @{@"textView": self.textView,
|
|
@"leftButton": self.leftButton,
|
|
@"rightButton": self.rightButton,
|
|
@"editorContentView": self.editorContentView,
|
|
@"charCountLabel": self.charCountLabel,
|
|
@"contentView": self.contentView,
|
|
};
|
|
|
|
NSDictionary *metrics = @{@"top" : @(self.contentInset.top),
|
|
@"left" : @(self.contentInset.left),
|
|
@"right" : @(self.contentInset.right),
|
|
};
|
|
|
|
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-(left)-[leftButton(0)]-(<=left)-[textView]-(right)-[rightButton(0)]-(right)-|" options:0 metrics:metrics views:views]];
|
|
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-(>=0)-[leftButton(0)]-(0@750)-|" options:0 metrics:metrics views:views]];
|
|
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-(>=0)-[rightButton]-(<=0)-|" options:0 metrics:metrics views:views]];
|
|
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-(left@250)-[charCountLabel(<=50@1000)]-(right@750)-|" options:0 metrics:metrics views:views]];
|
|
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-0-[editorContentView(0)]-(<=top)-[textView(0@999)]-(0)-|" options:0 metrics:metrics views:views]];
|
|
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[editorContentView]|" options:0 metrics:metrics views:views]];
|
|
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[contentView]|" options:0 metrics:metrics views:views]];
|
|
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[contentView(0)]|" options:0 metrics:metrics views:views]];
|
|
|
|
self.textViewBottomMarginC = [self slk_constraintForAttribute:NSLayoutAttributeBottom firstItem:self secondItem:self.textView];
|
|
self.editorContentViewHC = [self slk_constraintForAttribute:NSLayoutAttributeHeight firstItem:self.editorContentView secondItem:nil];
|
|
self.contentViewHC = [self slk_constraintForAttribute:NSLayoutAttributeHeight firstItem:self.contentView secondItem:nil];;
|
|
self.contentViewHC.active = NO; // Disabled by default, so the height is calculated with the height of its subviews
|
|
|
|
self.leftButtonWC = [self slk_constraintForAttribute:NSLayoutAttributeWidth firstItem:self.leftButton secondItem:nil];
|
|
self.leftButtonHC = [self slk_constraintForAttribute:NSLayoutAttributeHeight firstItem:self.leftButton secondItem:nil];
|
|
self.leftButtonBottomMarginC = [self slk_constraintForAttribute:NSLayoutAttributeBottom firstItem:self secondItem:self.leftButton];
|
|
|
|
self.leftMarginWC = [[self slk_constraintsForAttribute:NSLayoutAttributeLeading] firstObject];
|
|
|
|
self.rightButtonWC = [self slk_constraintForAttribute:NSLayoutAttributeWidth firstItem:self.rightButton secondItem:nil];
|
|
self.rightMarginWC = [[self slk_constraintsForAttribute:NSLayoutAttributeTrailing] firstObject];
|
|
|
|
self.rightButtonTopMarginC = [self slk_constraintForAttribute:NSLayoutAttributeTop firstItem:self.rightButton secondItem:self];
|
|
self.rightButtonBottomMarginC = [self slk_constraintForAttribute:NSLayoutAttributeBottom firstItem:self secondItem:self.rightButton];
|
|
}
|
|
|
|
- (void)slk_updateConstraintConstants
|
|
{
|
|
CGFloat zero = 0.0;
|
|
|
|
self.textViewBottomMarginC.constant = self.slk_bottomMargin;
|
|
|
|
if (self.isEditing)
|
|
{
|
|
self.editorContentViewHC.constant = self.editorContentViewHeight;
|
|
|
|
self.leftButtonWC.constant = zero;
|
|
self.leftButtonHC.constant = zero;
|
|
self.leftMarginWC.constant = zero;
|
|
self.leftButtonBottomMarginC.constant = zero;
|
|
self.rightButtonWC.constant = zero;
|
|
self.rightMarginWC.constant = zero;
|
|
}
|
|
else {
|
|
self.editorContentViewHC.constant = zero;
|
|
|
|
CGSize leftButtonSize = [self.leftButton imageForState:self.leftButton.state].size;
|
|
|
|
if (leftButtonSize.width > 0) {
|
|
self.leftButtonHC.constant = roundf(leftButtonSize.height);
|
|
self.leftButtonBottomMarginC.constant = roundf((self.intrinsicContentSize.height - leftButtonSize.height) / 2.0) + self.slk_contentViewHeight / 2.0;
|
|
}
|
|
|
|
self.leftButtonWC.constant = roundf(leftButtonSize.width);
|
|
self.leftMarginWC.constant = (leftButtonSize.width > 0) ? self.contentInset.left : zero;
|
|
|
|
self.rightButtonWC.constant = [self slk_appropriateRightButtonWidth];
|
|
self.rightMarginWC.constant = [self slk_appropriateRightButtonMargin];
|
|
|
|
CGFloat rightVerMargin = (self.intrinsicContentSize.height - self.slk_contentViewHeight - self.rightButton.intrinsicContentSize.height) / 2.0;
|
|
CGFloat rightVerBottomMargin = rightVerMargin + self.slk_contentViewHeight;
|
|
|
|
self.rightButtonTopMarginC.constant = rightVerMargin;
|
|
self.rightButtonBottomMarginC.constant = rightVerBottomMargin;
|
|
}
|
|
}
|
|
|
|
|
|
#pragma mark - Observers
|
|
|
|
- (void)slk_registerTo:(id)object forSelector:(SEL)selector
|
|
{
|
|
if (object) {
|
|
[object addObserver:self forKeyPath:NSStringFromSelector(selector) options:NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld context:NULL];
|
|
}
|
|
}
|
|
|
|
- (void)slk_unregisterFrom:(id)object forSelector:(SEL)selector
|
|
{
|
|
if (object) {
|
|
[object removeObserver:self forKeyPath:NSStringFromSelector(selector)];
|
|
}
|
|
}
|
|
|
|
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
|
|
{
|
|
if ([object isEqual:self.layer] && [keyPath isEqualToString:NSStringFromSelector(@selector(position))]) {
|
|
|
|
if (!CGPointEqualToPoint(self.previousOrigin, self.frame.origin)) {
|
|
self.previousOrigin = self.frame.origin;
|
|
[[NSNotificationCenter defaultCenter] postNotificationName:SLKTextInputbarDidMoveNotification object:self userInfo:@{@"origin": [NSValue valueWithCGPoint:self.previousOrigin]}];
|
|
}
|
|
}
|
|
else if ([object isEqual:self.leftButton.imageView] && [keyPath isEqualToString:NSStringFromSelector(@selector(image))]) {
|
|
|
|
UIImage *newImage = change[NSKeyValueChangeNewKey];
|
|
UIImage *oldImage = change[NSKeyValueChangeOldKey];
|
|
|
|
if (![newImage isEqual:oldImage]) {
|
|
[self slk_updateConstraintConstants];
|
|
}
|
|
}
|
|
else if ([object isEqual:self.rightButton.titleLabel] && [keyPath isEqualToString:NSStringFromSelector(@selector(font))]) {
|
|
|
|
[self slk_updateConstraintConstants];
|
|
}
|
|
else {
|
|
[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
|
|
}
|
|
}
|
|
|
|
|
|
#pragma mark - NSNotificationCenter registration
|
|
|
|
- (void)slk_registerNotifications
|
|
{
|
|
[self slk_unregisterNotifications];
|
|
|
|
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(slk_didChangeTextViewText:) name:UITextViewTextDidChangeNotification object:nil];
|
|
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(slk_didChangeTextViewContentSize:) name:SLKTextViewContentSizeDidChangeNotification object:nil];
|
|
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(slk_didChangeContentSizeCategory:) name:UIContentSizeCategoryDidChangeNotification object:nil];
|
|
}
|
|
|
|
- (void)slk_unregisterNotifications
|
|
{
|
|
[[NSNotificationCenter defaultCenter] removeObserver:self name:UITextViewTextDidChangeNotification object:nil];
|
|
[[NSNotificationCenter defaultCenter] removeObserver:self name:SLKTextViewContentSizeDidChangeNotification object:nil];
|
|
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIContentSizeCategoryDidChangeNotification object:nil];
|
|
}
|
|
|
|
|
|
#pragma mark - Lifeterm
|
|
|
|
- (void)dealloc
|
|
{
|
|
[self slk_unregisterNotifications];
|
|
|
|
[self slk_unregisterFrom:self.layer forSelector:@selector(position)];
|
|
[self slk_unregisterFrom:self.leftButton.imageView forSelector:@selector(image)];
|
|
[self slk_unregisterFrom:self.rightButton.titleLabel forSelector:@selector(font)];
|
|
}
|
|
|
|
@end
|