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106 lines
3.8 KiB
Objective-C
106 lines
3.8 KiB
Objective-C
//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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#import "OWSContactAvatarBuilder.h"
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#import "OWSContactsManager.h"
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#import "TSContactThread.h"
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#import "TSGroupThread.h"
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#import "TSThread.h"
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#import "UIColor+OWS.h"
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#import "UIFont+OWS.h"
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#import <JSQMessagesViewController/JSQMessagesAvatarImageFactory.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface OWSContactAvatarBuilder ()
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@property (nonatomic, readonly) OWSContactsManager *contactsManager;
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@property (nonatomic, readonly) NSString *signalId;
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@property (nonatomic, readonly) NSString *contactName;
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@property (nonatomic, readonly) NSUInteger diameter;
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@end
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@implementation OWSContactAvatarBuilder
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- (instancetype)initWithContactId:(NSString *)contactId
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name:(NSString *)name
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contactsManager:(OWSContactsManager *)contactsManager
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diameter:(NSUInteger)diameter
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{
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self = [super init];
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if (!self) {
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return self;
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}
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_signalId = contactId;
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_contactName = name;
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_contactsManager = contactsManager;
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_diameter = diameter;
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return self;
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}
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- (instancetype)initWithThread:(TSContactThread *)thread
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contactsManager:(OWSContactsManager *)contactsManager
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diameter:(NSUInteger)diameter
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{
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return [self initWithContactId:thread.contactIdentifier name:thread.name contactsManager:contactsManager diameter:diameter];
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}
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- (nullable UIImage *)buildSavedImage
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{
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return [self.contactsManager imageForPhoneIdentifier:self.signalId];
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}
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- (UIImage *)buildDefaultImage
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{
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NSString *cacheKey = [NSString stringWithFormat:@"signalId:%@:diamater:%lu", self.signalId, (unsigned long)self.diameter];
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UIImage *cachedAvatar = [self.contactsManager.avatarCache objectForKey:cacheKey];
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if (cachedAvatar) {
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return cachedAvatar;
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}
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NSMutableString *initials = [NSMutableString string];
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NSRange rangeOfLetters = [self.contactName rangeOfCharacterFromSet:[NSCharacterSet letterCharacterSet]];
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if (rangeOfLetters.location != NSNotFound) {
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// Contact name contains letters, so it's probably not just a phone number.
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// Make an image from the contact's initials
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NSCharacterSet *excludeAlphanumeric = [NSCharacterSet alphanumericCharacterSet].invertedSet;
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NSArray *words =
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[self.contactName componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
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for (NSString *word in words) {
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NSString *trimmedWord = [word stringByTrimmingCharactersInSet:excludeAlphanumeric];
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if (trimmedWord.length > 0) {
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NSString *firstLetter = [trimmedWord substringToIndex:1];
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[initials appendString:[firstLetter uppercaseString]];
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}
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}
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NSRange stringRange = { 0, MIN([initials length], (NSUInteger)3) }; // Rendering max 3 letters.
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initials = [[initials substringWithRange:stringRange] mutableCopy];
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}
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if (initials.length == 0) {
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// We don't have a name for this contact, so we can't make an "initials" image
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[initials appendString:@"#"];
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}
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CGFloat fontSize = (CGFloat)self.diameter / 2.8;
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UIColor *backgroundColor = [UIColor backgroundColorForContact:self.signalId];
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UIImage *image = [[JSQMessagesAvatarImageFactory avatarImageWithUserInitials:initials
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backgroundColor:backgroundColor
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textColor:[UIColor whiteColor]
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font:[UIFont ows_boldFontWithSize:fontSize]
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diameter:self.diameter] avatarImage];
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[self.contactsManager.avatarCache setObject:image forKey:self.signalId];
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return image;
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}
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@end
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NS_ASSUME_NONNULL_END
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