338 lines
12 KiB
Objective-C
338 lines
12 KiB
Objective-C
//
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// Created by Jesse Squires
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// http://www.hexedbits.com
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//
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//
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// Documentation
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// http://cocoadocs.org/docsets/JSQMessagesViewController
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//
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//
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// GitHub
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// https://github.com/jessesquires/JSQMessagesViewController
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//
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//
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// License
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// Copyright (c) 2014 Jesse Squires
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// Released under an MIT license: http://opensource.org/licenses/MIT
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//
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#import "JSQMessagesCollectionViewCell.h"
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#import "JSQMessagesCollectionViewCellIncoming.h"
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#import "JSQMessagesCollectionViewCellOutgoing.h"
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#import "JSQMessagesCollectionViewLayoutAttributes.h"
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#import "UIView+JSQMessages.h"
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@interface JSQMessagesCollectionViewCell ()
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@property (weak, nonatomic) IBOutlet JSQMessagesLabel *cellTopLabel;
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@property (weak, nonatomic) IBOutlet JSQMessagesLabel *messageBubbleTopLabel;
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@property (weak, nonatomic) IBOutlet JSQMessagesLabel *cellBottomLabel;
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@property (weak, nonatomic) IBOutlet UITextView *textView;
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@property (weak, nonatomic) IBOutlet UIView *messageBubbleContainerView;
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@property (weak, nonatomic) IBOutlet UIView *avatarContainerView;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *textViewTopVerticalSpaceConstraint;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *textViewBottomVerticalSpaceConstraint;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *textViewAvatarHorizontalSpaceConstraint;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *textViewMarginHorizontalSpaceConstraint;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *cellTopLabelHeightConstraint;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *messageBubbleTopLabelHeightConstraint;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *cellBottomLabelHeightConstraint;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *avatarContainerViewWidthConstraint;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *avatarContainerViewHeightConstraint;
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@property (weak, nonatomic) IBOutlet NSLayoutConstraint *messageBubbleLeftRightMarginConstraint;
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@property (assign, nonatomic) UIEdgeInsets textViewFrameInsets;
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@property (assign, nonatomic) CGSize avatarViewSize;
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@property (weak, nonatomic, readwrite) UITapGestureRecognizer *tapGestureRecognizer;
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- (void)jsq_handleTapGesture:(UITapGestureRecognizer *)tap;
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- (void)jsq_updateConstraint:(NSLayoutConstraint *)constraint withConstant:(CGFloat)constant;
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@end
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@implementation JSQMessagesCollectionViewCell
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#pragma mark - Class methods
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+ (UINib *)nib
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{
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NSAssert(NO, @"ERROR: method must be overridden in subclasses: %s", __PRETTY_FUNCTION__);
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return nil;
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}
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+ (NSString *)cellReuseIdentifier
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{
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NSAssert(NO, @"ERROR: method must be overridden in subclasses: %s", __PRETTY_FUNCTION__);
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return nil;
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}
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#pragma mark - Initialization
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- (void)awakeFromNib
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{
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[super awakeFromNib];
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[self setTranslatesAutoresizingMaskIntoConstraints:NO];
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self.backgroundColor = [UIColor whiteColor];
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self.cellTopLabelHeightConstraint.constant = 0.0f;
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self.messageBubbleTopLabelHeightConstraint.constant = 0.0f;
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self.cellBottomLabelHeightConstraint.constant = 0.0f;
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self.avatarViewSize = CGSizeZero;
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self.cellTopLabel.textAlignment = NSTextAlignmentCenter;
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self.cellTopLabel.font = [UIFont boldSystemFontOfSize:12.0f];
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self.cellTopLabel.textColor = [UIColor lightGrayColor];
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self.messageBubbleTopLabel.font = [UIFont systemFontOfSize:12.0f];
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self.messageBubbleTopLabel.textColor = [UIColor lightGrayColor];
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self.cellBottomLabel.font = [UIFont systemFontOfSize:11.0f];
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self.cellBottomLabel.textColor = [UIColor lightGrayColor];
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self.textView.textColor = [UIColor whiteColor];
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self.textView.editable = NO;
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self.textView.selectable = NO;
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self.textView.userInteractionEnabled = YES;
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self.textView.dataDetectorTypes = UIDataDetectorTypeNone;
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self.textView.showsHorizontalScrollIndicator = NO;
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self.textView.showsVerticalScrollIndicator = NO;
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self.textView.scrollEnabled = NO;
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self.textView.backgroundColor = [UIColor clearColor];
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self.textView.contentInset = UIEdgeInsetsZero;
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self.textView.scrollIndicatorInsets = UIEdgeInsetsZero;
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self.textView.contentOffset = CGPointZero;
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self.textView.linkTextAttributes = @{ NSForegroundColorAttributeName : [UIColor whiteColor],
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NSUnderlineStyleAttributeName : @(NSUnderlineStyleSingle | NSUnderlinePatternSolid) };
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UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(jsq_handleTapGesture:)];
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[self addGestureRecognizer:tap];
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self.tapGestureRecognizer = tap;
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}
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- (void)dealloc
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{
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_delegate = nil;
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_cellTopLabel = nil;
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_messageBubbleTopLabel = nil;
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_cellBottomLabel = nil;
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_textView = nil;
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_messageBubbleImageView = nil;
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_avatarImageView = nil;
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[_tapGestureRecognizer removeTarget:nil action:NULL];
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_tapGestureRecognizer = nil;
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}
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#pragma mark - Collection view cell
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- (void)prepareForReuse
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{
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[super prepareForReuse];
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self.cellTopLabel.text = nil;
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self.messageBubbleTopLabel.text = nil;
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self.cellBottomLabel.text = nil;
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self.textView.dataDetectorTypes = UIDataDetectorTypeNone;
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self.textView.text = nil;
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self.textView.attributedText = nil;
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}
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- (void)applyLayoutAttributes:(UICollectionViewLayoutAttributes *)layoutAttributes
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{
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[super applyLayoutAttributes:layoutAttributes];
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JSQMessagesCollectionViewLayoutAttributes *customAttributes = (JSQMessagesCollectionViewLayoutAttributes *)layoutAttributes;
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if (self.textView.font != customAttributes.messageBubbleFont) {
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self.textView.font = customAttributes.messageBubbleFont;
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}
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if (!UIEdgeInsetsEqualToEdgeInsets(self.textView.textContainerInset, customAttributes.textViewTextContainerInsets)) {
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self.textView.textContainerInset = customAttributes.textViewTextContainerInsets;
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}
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self.textViewFrameInsets = customAttributes.textViewFrameInsets;
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[self jsq_updateConstraint:self.messageBubbleLeftRightMarginConstraint
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withConstant:customAttributes.messageBubbleLeftRightMargin];
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[self jsq_updateConstraint:self.cellTopLabelHeightConstraint
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withConstant:customAttributes.cellTopLabelHeight];
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[self jsq_updateConstraint:self.messageBubbleTopLabelHeightConstraint
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withConstant:customAttributes.messageBubbleTopLabelHeight];
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[self jsq_updateConstraint:self.cellBottomLabelHeightConstraint
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withConstant:customAttributes.cellBottomLabelHeight];
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if ([self isKindOfClass:[JSQMessagesCollectionViewCellIncoming class]]) {
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self.avatarViewSize = customAttributes.incomingAvatarViewSize;
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}
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else if ([self isKindOfClass:[JSQMessagesCollectionViewCellOutgoing class]]) {
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self.avatarViewSize = customAttributes.outgoingAvatarViewSize;
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}
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}
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- (void)setHighlighted:(BOOL)highlighted
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{
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[super setHighlighted:highlighted];
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self.messageBubbleImageView.highlighted = highlighted;
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}
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- (void)setSelected:(BOOL)selected
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{
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[super setSelected:selected];
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self.messageBubbleImageView.highlighted = selected;
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}
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#pragma mark - Setters
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- (void)setBackgroundColor:(UIColor *)backgroundColor
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{
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[super setBackgroundColor:backgroundColor];
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self.cellTopLabel.backgroundColor = backgroundColor;
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self.messageBubbleTopLabel.backgroundColor = backgroundColor;
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self.cellBottomLabel.backgroundColor = backgroundColor;
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self.messageBubbleImageView.backgroundColor = backgroundColor;
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self.avatarImageView.backgroundColor = backgroundColor;
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self.messageBubbleContainerView.backgroundColor = backgroundColor;
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self.avatarContainerView.backgroundColor = backgroundColor;
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}
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- (void)setMessageBubbleImageView:(UIImageView *)messageBubbleImageView
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{
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if (_messageBubbleImageView) {
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[_messageBubbleImageView removeFromSuperview];
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}
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if (!messageBubbleImageView) {
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_messageBubbleImageView = nil;
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return;
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}
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messageBubbleImageView.frame = CGRectMake(0.0f,
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0.0f,
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CGRectGetWidth(self.messageBubbleContainerView.bounds),
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CGRectGetHeight(self.messageBubbleContainerView.bounds));
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[messageBubbleImageView setTranslatesAutoresizingMaskIntoConstraints:NO];
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[self.messageBubbleContainerView insertSubview:messageBubbleImageView belowSubview:self.textView];
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[self.messageBubbleContainerView jsq_pinAllEdgesOfSubview:messageBubbleImageView];
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[self setNeedsUpdateConstraints];
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_messageBubbleImageView = messageBubbleImageView;
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}
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- (void)setAvatarImageView:(UIImageView *)avatarImageView
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{
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if (_avatarImageView) {
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[_avatarImageView removeFromSuperview];
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}
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if (!avatarImageView) {
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self.avatarViewSize = CGSizeZero;
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_avatarImageView = nil;
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self.avatarContainerView.hidden = YES;
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return;
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}
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self.avatarContainerView.hidden = NO;
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self.avatarViewSize = CGSizeMake(CGRectGetWidth(avatarImageView.bounds), CGRectGetHeight(avatarImageView.bounds));
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[avatarImageView setTranslatesAutoresizingMaskIntoConstraints:NO];
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[self.avatarContainerView addSubview:avatarImageView];
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[self.avatarContainerView jsq_pinAllEdgesOfSubview:avatarImageView];
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[self setNeedsUpdateConstraints];
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_avatarImageView = avatarImageView;
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}
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- (void)setAvatarViewSize:(CGSize)avatarViewSize
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{
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if (CGSizeEqualToSize(avatarViewSize, self.avatarViewSize)) {
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return;
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}
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[self jsq_updateConstraint:self.avatarContainerViewWidthConstraint withConstant:avatarViewSize.width];
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[self jsq_updateConstraint:self.avatarContainerViewHeightConstraint withConstant:avatarViewSize.height];
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}
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- (void)setTextViewFrameInsets:(UIEdgeInsets)textViewFrameInsets
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{
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if (UIEdgeInsetsEqualToEdgeInsets(textViewFrameInsets, self.textViewFrameInsets)) {
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return;
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}
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[self jsq_updateConstraint:self.textViewTopVerticalSpaceConstraint withConstant:textViewFrameInsets.top];
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[self jsq_updateConstraint:self.textViewBottomVerticalSpaceConstraint withConstant:textViewFrameInsets.bottom];
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[self jsq_updateConstraint:self.textViewAvatarHorizontalSpaceConstraint withConstant:textViewFrameInsets.right];
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[self jsq_updateConstraint:self.textViewMarginHorizontalSpaceConstraint withConstant:textViewFrameInsets.left];
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}
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#pragma mark - Getters
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- (CGSize)avatarViewSize
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{
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return CGSizeMake(self.avatarContainerViewWidthConstraint.constant,
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self.avatarContainerViewHeightConstraint.constant);
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}
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- (UIEdgeInsets)textViewFrameInsets
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{
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return UIEdgeInsetsMake(self.textViewTopVerticalSpaceConstraint.constant,
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self.textViewMarginHorizontalSpaceConstraint.constant,
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self.textViewBottomVerticalSpaceConstraint.constant,
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self.textViewAvatarHorizontalSpaceConstraint.constant);
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}
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#pragma mark - Utilities
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- (void)jsq_updateConstraint:(NSLayoutConstraint *)constraint withConstant:(CGFloat)constant
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{
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if (constraint.constant == constant) {
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return;
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}
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constraint.constant = constant;
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[self setNeedsUpdateConstraints];
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}
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#pragma mark - Gesture recognizers
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- (void)jsq_handleTapGesture:(UITapGestureRecognizer *)tap
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{
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CGPoint touchPt = [tap locationInView:self];
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if (CGRectContainsPoint(self.avatarContainerView.frame, touchPt)) {
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[self.delegate messagesCollectionViewCellDidTapAvatar:self];
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}
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else if (CGRectContainsPoint(self.messageBubbleContainerView.frame, touchPt)) {
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[self.delegate messagesCollectionViewCellDidTapMessageBubble:self];
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}
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else {
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[self.delegate messagesCollectionViewCellDidTapCell:self atPosition:touchPt];
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}
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}
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@end
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