session-ios/Signal/src/ViewControllers/ConversationView/Cells/OWSUnreadIndicatorCell.m
2018-06-26 10:20:26 -04:00

132 lines
3.8 KiB
Objective-C

//
// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
//
#import "OWSUnreadIndicatorCell.h"
#import "ConversationViewItem.h"
#import "Signal-Swift.h"
#import <SignalMessaging/TSUnreadIndicatorInteraction.h>
#import <SignalMessaging/UIColor+OWS.h>
#import <SignalMessaging/UIFont+OWS.h>
#import <SignalMessaging/UIView+OWS.h>
NS_ASSUME_NONNULL_BEGIN
@interface OWSUnreadIndicatorCell ()
@property (nonatomic, nullable) TSUnreadIndicatorInteraction *interaction;
@property (nonatomic) UILabel *titleLabel;
@property (nonatomic) UIView *strokeView;
@property (nonatomic) NSArray<NSLayoutConstraint *> *layoutConstraints;
@end
#pragma mark -
@implementation OWSUnreadIndicatorCell
// `[UIView init]` invokes `[self initWithFrame:...]`.
- (instancetype)initWithFrame:(CGRect)frame
{
if (self = [super initWithFrame:frame]) {
[self commontInit];
}
return self;
}
- (void)commontInit
{
OWSAssert(!self.titleLabel);
self.layoutMargins = UIEdgeInsetsZero;
self.contentView.layoutMargins = UIEdgeInsetsZero;
self.strokeView = [UIView new];
// TODO: color.
self.strokeView.backgroundColor = [UIColor colorWithRGBHex:0xf6eee3];
[self.contentView addSubview:self.strokeView];
self.titleLabel = [UILabel new];
// TODO: color.
self.titleLabel.textColor = [UIColor colorWithRGBHex:0x403e3b];
self.titleLabel.textAlignment = NSTextAlignmentCenter;
[self.contentView addSubview:self.titleLabel];
[self configureFonts];
}
- (void)configureFonts
{
// Update cell to reflect changes in dynamic text.
//
// TODO: Font size.
self.titleLabel.font = UIFont.ows_dynamicTypeSubheadlineFont;
}
+ (NSString *)cellReuseIdentifier
{
return NSStringFromClass([self class]);
}
- (void)loadForDisplayWithTransaction:(YapDatabaseReadTransaction *)transaction
{
OWSAssert(self.conversationStyle);
OWSAssert(self.viewItem);
OWSAssert([self.viewItem.interaction isKindOfClass:[TSUnreadIndicatorInteraction class]]);
[self configureFonts];
TSUnreadIndicatorInteraction *interaction = (TSUnreadIndicatorInteraction *)self.viewItem.interaction;
self.titleLabel.text = [self titleForInteraction:interaction];
self.backgroundColor = [UIColor whiteColor];
[NSLayoutConstraint deactivateConstraints:self.layoutConstraints];
self.layoutConstraints = @[
[self.titleLabel autoVCenterInSuperview],
[self.titleLabel autoPinLeadingToSuperviewMarginWithInset:self.conversationStyle.fullWidthGutterLeading],
[self.titleLabel autoPinTrailingToSuperviewMarginWithInset:self.conversationStyle.fullWidthGutterTrailing],
// TODO: offset.
[self.strokeView autoPinEdge:ALEdgeBottom toEdge:ALEdgeTop ofView:self.titleLabel withOffset:0.f],
[self.strokeView autoPinLeadingToSuperviewMarginWithInset:self.conversationStyle.fullWidthGutterLeading],
[self.strokeView autoPinTrailingToSuperviewMarginWithInset:self.conversationStyle.fullWidthGutterTrailing],
[self.strokeView autoSetDimension:ALDimensionHeight toSize:1.f],
];
}
- (NSString *)titleForInteraction:(TSUnreadIndicatorInteraction *)interaction
{
return NSLocalizedString(@"MESSAGES_VIEW_UNREAD_INDICATOR", @"Indicator that separates read from unread messages.")
.uppercaseString;
}
- (CGSize)cellSizeWithTransaction:(YapDatabaseReadTransaction *)transaction
{
OWSAssert(self.conversationStyle);
OWSAssert(self.viewItem);
OWSAssert([self.viewItem.interaction isKindOfClass:[TSUnreadIndicatorInteraction class]]);
[self configureFonts];
// TODO: offset.
CGFloat vOffset = 24.f;
CGSize result
= CGSizeMake(self.conversationStyle.fullWidthContentWidth, self.titleLabel.font.lineHeight + vOffset * 2);
return CGSizeCeil(result);
}
- (void)prepareForReuse
{
[super prepareForReuse];
self.interaction = nil;
}
@end
NS_ASSUME_NONNULL_END