session-ios/Signal/src/ViewControllers/ConversationView/ConversationViewController.m
2018-05-09 17:51:27 -04:00

5072 lines
205 KiB
Objective-C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

//
// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
//
#import "ConversationViewController.h"
#import "AppDelegate.h"
#import "BlockListUIUtils.h"
#import "BlockListViewController.h"
#import "ContactsViewHelper.h"
#import "ConversationCollectionView.h"
#import "ConversationInputTextView.h"
#import "ConversationInputToolbar.h"
#import "ConversationScrollButton.h"
#import "ConversationViewCell.h"
#import "ConversationViewItem.h"
#import "ConversationViewLayout.h"
#import "DateUtil.h"
#import "DebugUITableViewController.h"
#import "FingerprintViewController.h"
#import "NSAttributedString+OWS.h"
#import "NewGroupViewController.h"
#import "OWSAudioPlayer.h"
#import "OWSContactOffersCell.h"
#import "OWSConversationSettingsViewController.h"
#import "OWSConversationSettingsViewDelegate.h"
#import "OWSDisappearingMessagesJob.h"
#import "OWSMath.h"
#import "OWSMessageCell.h"
#import "OWSSystemMessageCell.h"
#import "OWSUnreadIndicatorCell.h"
#import "Signal-Swift.h"
#import "SignalKeyingStorage.h"
#import "TSAttachmentPointer.h"
#import "TSCall.h"
#import "TSContactThread.h"
#import "TSDatabaseView.h"
#import "TSErrorMessage.h"
#import "TSGroupThread.h"
#import "TSIncomingMessage.h"
#import "TSInfoMessage.h"
#import "TSInvalidIdentityKeyErrorMessage.h"
#import "UIFont+OWS.h"
#import "UIViewController+Permissions.h"
#import "ViewControllerUtils.h"
#import <AVFoundation/AVFoundation.h>
#import <AssetsLibrary/AssetsLibrary.h>
#import <ContactsUI/CNContactViewController.h>
#import <JSQMessagesViewController/JSQMessagesBubbleImage.h>
#import <JSQMessagesViewController/JSQMessagesBubbleImageFactory.h>
#import <JSQMessagesViewController/JSQMessagesCollectionViewFlowLayoutInvalidationContext.h>
#import <JSQMessagesViewController/JSQMessagesCollectionViewLayoutAttributes.h>
#import <JSQMessagesViewController/JSQMessagesTimestampFormatter.h>
#import <JSQMessagesViewController/JSQSystemSoundPlayer+JSQMessages.h>
#import <JSQMessagesViewController/UIColor+JSQMessages.h>
#import <JSQSystemSoundPlayer/JSQSystemSoundPlayer.h>
#import <MobileCoreServices/UTCoreTypes.h>
#import <PromiseKit/AnyPromise.h>
#import <SignalMessaging/Environment.h>
#import <SignalMessaging/NSString+OWS.h>
#import <SignalMessaging/OWSContactOffersInteraction.h>
#import <SignalMessaging/OWSContactsManager.h>
#import <SignalMessaging/OWSFormat.h>
#import <SignalMessaging/OWSUserProfile.h>
#import <SignalMessaging/TSUnreadIndicatorInteraction.h>
#import <SignalMessaging/ThreadUtil.h>
#import <SignalMessaging/UIUtil.h>
#import <SignalMessaging/UIViewController+OWS.h>
#import <SignalServiceKit/Contact.h>
#import <SignalServiceKit/ContactsUpdater.h>
#import <SignalServiceKit/MimeTypeUtil.h>
#import <SignalServiceKit/NSDate+OWS.h>
#import <SignalServiceKit/NSTimer+OWS.h>
#import <SignalServiceKit/OWSAddToContactsOfferMessage.h>
#import <SignalServiceKit/OWSAddToProfileWhitelistOfferMessage.h>
#import <SignalServiceKit/OWSAttachmentsProcessor.h>
#import <SignalServiceKit/OWSBlockingManager.h>
#import <SignalServiceKit/OWSDisappearingMessagesConfiguration.h>
#import <SignalServiceKit/OWSIdentityManager.h>
#import <SignalServiceKit/OWSMessageManager.h>
#import <SignalServiceKit/OWSMessageSender.h>
#import <SignalServiceKit/OWSMessageUtils.h>
#import <SignalServiceKit/OWSReadReceiptManager.h>
#import <SignalServiceKit/OWSVerificationStateChangeMessage.h>
#import <SignalServiceKit/SignalRecipient.h>
#import <SignalServiceKit/TSAccountManager.h>
#import <SignalServiceKit/TSGroupModel.h>
#import <SignalServiceKit/TSInvalidIdentityKeyReceivingErrorMessage.h>
#import <SignalServiceKit/TSNetworkManager.h>
#import <SignalServiceKit/TSQuotedMessage.h>
#import <SignalServiceKit/Threading.h>
#import <YapDatabase/YapDatabase.h>
#import <YapDatabase/YapDatabaseAutoView.h>
#import <YapDatabase/YapDatabaseViewChange.h>
#import <YapDatabase/YapDatabaseViewConnection.h>
@import Photos;
NS_ASSUME_NONNULL_BEGIN
// Always load up to 50 messages when user arrives.
static const int kYapDatabasePageSize = 50;
// Never show more than 50*500 = 25k messages in conversation view at a time.
static const int kYapDatabaseMaxPageCount = 500;
// Never show more than 6*50 = 300 messages in conversation view when user
// arrives.
static const int kYapDatabaseMaxInitialPageCount = 6;
static const int kConversationInitialMaxRangeSize = kYapDatabasePageSize * kYapDatabaseMaxInitialPageCount;
static const int kYapDatabaseRangeMaxLength = kYapDatabasePageSize * kYapDatabaseMaxPageCount;
static const int kYapDatabaseRangeMinLength = 0;
static const CGFloat kLoadMoreHeaderHeight = 60.f;
typedef enum : NSUInteger {
kMediaTypePicture,
kMediaTypeVideo,
} kMediaTypes;
#pragma mark -
@interface ConversationViewController () <AttachmentApprovalViewControllerDelegate,
ApproveContactShareViewControllerDelegate,
AVAudioPlayerDelegate,
CNContactViewControllerDelegate,
ContactEditingDelegate,
ContactsPickerDelegate,
ContactShareViewHelperDelegate,
ContactsViewHelperDelegate,
DisappearingTimerConfigurationViewDelegate,
OWSConversationSettingsViewDelegate,
ConversationHeaderViewDelegate,
ConversationViewLayoutDelegate,
ConversationViewCellDelegate,
ConversationInputTextViewDelegate,
OWSMessageBubbleViewDelegate,
UICollectionViewDelegate,
UICollectionViewDataSource,
UIDocumentMenuDelegate,
UIDocumentPickerDelegate,
UIImagePickerControllerDelegate,
UINavigationControllerDelegate,
UITextViewDelegate,
ConversationCollectionViewDelegate,
ConversationInputToolbarDelegate,
GifPickerViewControllerDelegate>
// Show message info animation
@property (nullable, nonatomic) UIPercentDrivenInteractiveTransition *showMessageDetailsTransition;
@property (nullable, nonatomic) UIPanGestureRecognizer *currentShowMessageDetailsPanGesture;
@property (nonatomic) TSThread *thread;
@property (nonatomic) YapDatabaseConnection *editingDatabaseConnection;
@property (nonatomic, readonly) AudioActivity *voiceNoteAudioActivity;
// These two properties must be updated in lockstep.
//
// * The first (required) step is to update uiDatabaseConnection using beginLongLivedReadTransaction.
// * The second (required) step is to update messageMappings.
// * The third (optional) step is to update the messageMappings range using
// updateMessageMappingRangeOptions.
// * The fourth (optional) step is to update the view items using reloadViewItems.
// * The steps must be done in strict order.
// * If we do any of the steps, we must do all of the required steps.
// * We can't use messageMappings or viewItems after the first step until we've
// done the last step; i.e.. we can't do any layout, since that uses the view
// items which haven't been updated yet.
// * If the first and/or second steps changes the set of messages
// their ordering and/or their state, we must do the third and fourth steps.
// * If we do the third step, we must call resetContentAndLayout afterward.
@property (nonatomic) YapDatabaseConnection *uiDatabaseConnection;
@property (nonatomic) YapDatabaseViewMappings *messageMappings;
@property (nonatomic, readonly) ConversationInputToolbar *inputToolbar;
@property (nonatomic, readonly) ConversationCollectionView *collectionView;
@property (nonatomic, readonly) ConversationViewLayout *layout;
@property (nonatomic) NSArray<ConversationViewItem *> *viewItems;
@property (nonatomic) NSMutableDictionary<NSString *, ConversationViewItem *> *viewItemCache;
@property (nonatomic, nullable) AVAudioRecorder *audioRecorder;
@property (nonatomic, nullable) OWSAudioPlayer *audioAttachmentPlayer;
@property (nonatomic, nullable) NSUUID *voiceMessageUUID;
@property (nonatomic, nullable) NSTimer *readTimer;
@property (nonatomic) NSCache *cellMediaCache;
@property (nonatomic) ConversationHeaderView *headerView;
@property (nonatomic, nullable) UIView *bannerView;
@property (nonatomic, nullable) OWSDisappearingMessagesConfiguration *disappearingMessagesConfiguration;
// Back Button Unread Count
@property (nonatomic, readonly) UIView *backButtonUnreadCountView;
@property (nonatomic, readonly) UILabel *backButtonUnreadCountLabel;
@property (nonatomic, readonly) NSUInteger backButtonUnreadCount;
@property (nonatomic) NSUInteger lastRangeLength;
@property (nonatomic) ConversationViewAction actionOnOpen;
@property (nonatomic) BOOL peek;
@property (nonatomic, readonly) OWSContactsManager *contactsManager;
@property (nonatomic, readonly) ContactsUpdater *contactsUpdater;
@property (nonatomic, readonly) OWSMessageSender *messageSender;
@property (nonatomic, readonly) OWSPrimaryStorage *primaryStorage;
@property (nonatomic, readonly) TSNetworkManager *networkManager;
@property (nonatomic, readonly) OutboundCallInitiator *outboundCallInitiator;
@property (nonatomic, readonly) OWSBlockingManager *blockingManager;
@property (nonatomic, readonly) ContactsViewHelper *contactsViewHelper;
@property (nonatomic) BOOL userHasScrolled;
@property (nonatomic, nullable) NSDate *lastMessageSentDate;
@property (nonatomic, nullable) ThreadDynamicInteractions *dynamicInteractions;
@property (nonatomic) BOOL hasClearedUnreadMessagesIndicator;
@property (nonatomic) BOOL showLoadMoreHeader;
@property (nonatomic) UILabel *loadMoreHeader;
@property (nonatomic) uint64_t lastVisibleTimestamp;
@property (nonatomic, readonly) BOOL isGroupConversation;
@property (nonatomic) BOOL isUserScrolling;
@property (nonatomic) NSLayoutConstraint *scrollDownButtonButtomConstraint;
@property (nonatomic) ConversationScrollButton *scrollDownButton;
#ifdef DEBUG
@property (nonatomic) ConversationScrollButton *scrollUpButton;
#endif
@property (nonatomic) BOOL isViewCompletelyAppeared;
@property (nonatomic) BOOL isViewVisible;
@property (nonatomic) BOOL isAppInBackground;
@property (nonatomic) BOOL shouldObserveDBModifications;
@property (nonatomic) BOOL viewHasEverAppeared;
@property (nonatomic) BOOL hasUnreadMessages;
@property (nonatomic) BOOL isPickingMediaAsDocument;
@property (nonatomic, nullable) NSNumber *previousLastTimestamp;
@property (nonatomic, nullable) NSNumber *viewHorizonTimestamp;
@property (nonatomic) ContactShareViewHelper *contactShareViewHelper;
@end
#pragma mark -
@implementation ConversationViewController
- (nullable instancetype)initWithCoder:(NSCoder *)aDecoder
{
OWSFail(@"Do not instantiate this view from coder");
self = [super initWithCoder:aDecoder];
if (!self) {
return self;
}
[self commonInit];
return self;
}
- (instancetype)initWithNibName:(nullable NSString *)nibNameOrNil bundle:(nullable NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (!self) {
return self;
}
[self commonInit];
return self;
}
- (void)commonInit
{
_contactsManager = [Environment current].contactsManager;
_contactsUpdater = [Environment current].contactsUpdater;
_messageSender = [Environment current].messageSender;
_outboundCallInitiator = SignalApp.sharedApp.outboundCallInitiator;
_primaryStorage = [OWSPrimaryStorage sharedManager];
_networkManager = [TSNetworkManager sharedManager];
_blockingManager = [OWSBlockingManager sharedManager];
_contactsViewHelper = [[ContactsViewHelper alloc] initWithDelegate:self];
_contactShareViewHelper = [[ContactShareViewHelper alloc] initWithContactsManager:self.contactsManager];
_contactShareViewHelper.delegate = self;
NSString *audioActivityDescription = [NSString stringWithFormat:@"%@ voice note", self.logTag];
_voiceNoteAudioActivity = [[AudioActivity alloc] initWithAudioDescription:audioActivityDescription];
}
- (void)addNotificationListeners
{
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(blockedPhoneNumbersDidChange:)
name:kNSNotificationName_BlockedPhoneNumbersDidChange
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(identityStateDidChange:)
name:kNSNotificationName_IdentityStateDidChange
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(didChangePreferredContentSize:)
name:UIContentSizeCategoryDidChangeNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(yapDatabaseModified:)
name:YapDatabaseModifiedNotification
object:OWSPrimaryStorage.sharedManager.dbNotificationObject];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(yapDatabaseModifiedExternally:)
name:YapDatabaseModifiedExternallyNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(applicationWillEnterForeground:)
name:OWSApplicationWillEnterForegroundNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(applicationDidEnterBackground:)
name:OWSApplicationDidEnterBackgroundNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(applicationWillResignActive:)
name:OWSApplicationWillResignActiveNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(cancelReadTimer)
name:OWSApplicationDidEnterBackgroundNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(otherUsersProfileDidChange:)
name:kNSNotificationName_OtherUsersProfileDidChange
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(profileWhitelistDidChange:)
name:kNSNotificationName_ProfileWhitelistDidChange
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(signalAccountsDidChange:)
name:OWSContactsManagerSignalAccountsDidChangeNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillChangeFrame:)
name:UIKeyboardWillChangeFrameNotification
object:nil];
}
- (void)signalAccountsDidChange:(NSNotification *)notification
{
OWSAssertIsOnMainThread();
[self ensureDynamicInteractions];
}
- (void)otherUsersProfileDidChange:(NSNotification *)notification
{
OWSAssertIsOnMainThread();
NSString *recipientId = notification.userInfo[kNSNotificationKey_ProfileRecipientId];
OWSAssert(recipientId.length > 0);
if (recipientId.length > 0 && [self.thread.recipientIdentifiers containsObject:recipientId]) {
if ([self.thread isKindOfClass:[TSContactThread class]]) {
// update title with profile name
[self updateNavigationTitle];
}
if (self.isGroupConversation) {
// Reload all cells if this is a group conversation,
// since we may need to update the sender names on the messages.
[self resetContentAndLayout];
}
}
}
- (void)profileWhitelistDidChange:(NSNotification *)notification
{
OWSAssertIsOnMainThread();
// If profile whitelist just changed, we may want to hide a profile whitelist offer.
NSString *_Nullable recipientId = notification.userInfo[kNSNotificationKey_ProfileRecipientId];
NSData *_Nullable groupId = notification.userInfo[kNSNotificationKey_ProfileGroupId];
if (recipientId.length > 0 && [self.thread.recipientIdentifiers containsObject:recipientId]) {
[self ensureDynamicInteractions];
} else if (groupId.length > 0 && self.thread.isGroupThread) {
TSGroupThread *groupThread = (TSGroupThread *)self.thread;
if ([groupThread.groupModel.groupId isEqualToData:groupId]) {
[self ensureDynamicInteractions];
[self ensureBannerState];
}
}
}
- (void)blockedPhoneNumbersDidChange:(id)notification
{
OWSAssertIsOnMainThread();
[self ensureBannerState];
}
- (void)identityStateDidChange:(NSNotification *)notification
{
OWSAssertIsOnMainThread();
[self updateNavigationBarSubtitleLabel];
[self ensureBannerState];
}
- (void)peekSetup
{
_peek = YES;
self.actionOnOpen = ConversationViewActionNone;
}
- (void)popped
{
_peek = NO;
[self hideInputIfNeeded];
}
- (void)configureForThread:(TSThread *)thread action:(ConversationViewAction)action
{
_thread = thread;
_isGroupConversation = [self.thread isKindOfClass:[TSGroupThread class]];
self.actionOnOpen = action;
_cellMediaCache = [NSCache new];
// Cache the cell media for ~24 cells.
self.cellMediaCache.countLimit = 24;
[self.uiDatabaseConnection beginLongLivedReadTransaction];
// We need to update the "unread indicator" _before_ we determine the initial range
// size, since it depends on where the unread indicator is placed.
self.lastRangeLength = 0;
[self ensureDynamicInteractions];
if (thread.uniqueId.length > 0) {
self.messageMappings = [[YapDatabaseViewMappings alloc] initWithGroups:@[ thread.uniqueId ]
view:TSMessageDatabaseViewExtensionName];
} else {
OWSFail(@"uniqueId unexpectedly empty for thread: %@", thread);
self.messageMappings =
[[YapDatabaseViewMappings alloc] initWithGroups:@[] view:TSMessageDatabaseViewExtensionName];
return;
}
// We need to impose the range restrictions on the mappings immediately to avoid
// doing a great deal of unnecessary work and causing a perf hotspot.
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
[self.messageMappings updateWithTransaction:transaction];
}];
[self updateMessageMappingRangeOptions];
[self updateShouldObserveDBModifications];
}
- (BOOL)userLeftGroup
{
if (![_thread isKindOfClass:[TSGroupThread class]]) {
return NO;
}
TSGroupThread *groupThread = (TSGroupThread *)self.thread;
return ![groupThread.groupModel.groupMemberIds containsObject:[TSAccountManager localNumber]];
}
- (void)hideInputIfNeeded
{
if (_peek) {
self.inputToolbar.hidden = YES;
[self dismissKeyBoard];
return;
}
if (self.userLeftGroup) {
self.inputToolbar.hidden = YES; // user has requested they leave the group. further sends disallowed
[self dismissKeyBoard];
} else {
self.inputToolbar.hidden = NO;
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self createContents];
[self.navigationController.navigationBar setTranslucent:NO];
[self registerCellClasses];
[self createConversationScrollButtons];
[self createHeaderViews];
if (@available(iOS 11, *)) {
// We use the default back button from home view, which animates nicely with interactive transitions like the
// interactive pop gesture and the "slide left" for info.
} else {
// On iOS9/10 the default back button is too wide, so we use a custom back button. This doesn't animate nicely
// with interactive transitions, but has the appropriate width.
[self createBackButton];
}
[self addNotificationListeners];
[self loadDraftInCompose];
}
- (void)loadView
{
[super loadView];
self.view.backgroundColor = [UIColor ows_toolbarBackgroundColor];
}
- (void)createContents
{
_layout = [ConversationViewLayout new];
self.layout.delegate = self;
// We use the root view bounds as the initial frame for the collection
// view so that its contents can be laid out immediately.
_collectionView =
[[ConversationCollectionView alloc] initWithFrame:self.view.bounds collectionViewLayout:self.layout];
self.collectionView.layoutDelegate = self;
self.collectionView.delegate = self;
self.collectionView.dataSource = self;
self.collectionView.showsVerticalScrollIndicator = YES;
self.collectionView.showsHorizontalScrollIndicator = NO;
self.collectionView.keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive;
self.collectionView.backgroundColor = [UIColor whiteColor];
[self.view addSubview:self.collectionView];
[self.collectionView autoPinWidthToSuperview];
[self.collectionView autoPinToTopLayoutGuideOfViewController:self withInset:0];
[self.collectionView applyScrollViewInsetsFix];
_inputToolbar = [ConversationInputToolbar new];
self.inputToolbar.inputToolbarDelegate = self;
self.inputToolbar.inputTextViewDelegate = self;
[self.collectionView autoPinToBottomLayoutGuideOfViewController:self withInset:0];
self.loadMoreHeader = [UILabel new];
self.loadMoreHeader.text = NSLocalizedString(@"CONVERSATION_VIEW_LOADING_MORE_MESSAGES",
@"Indicates that the app is loading more messages in this conversation.");
self.loadMoreHeader.textColor = [UIColor ows_materialBlueColor];
self.loadMoreHeader.textAlignment = NSTextAlignmentCenter;
self.loadMoreHeader.font = [UIFont ows_mediumFontWithSize:16.f];
[self.collectionView addSubview:self.loadMoreHeader];
[self.loadMoreHeader autoPinWidthToWidthOfView:self.view];
[self.loadMoreHeader autoPinEdgeToSuperviewEdge:ALEdgeTop];
[self.loadMoreHeader autoSetDimension:ALDimensionHeight toSize:kLoadMoreHeaderHeight];
}
- (BOOL)becomeFirstResponder
{
DDLogDebug(@"%@ in %s", self.logTag, __PRETTY_FUNCTION__);
return [super becomeFirstResponder];
}
- (BOOL)resignFirstResponder
{
DDLogDebug(@"%@ in %s", self.logTag, __PRETTY_FUNCTION__);
return [super resignFirstResponder];
}
- (BOOL)canBecomeFirstResponder
{
return YES;
}
- (nullable UIView *)inputAccessoryView
{
return self.inputToolbar;
}
- (void)registerCellClasses
{
[self.collectionView registerClass:[OWSSystemMessageCell class]
forCellWithReuseIdentifier:[OWSSystemMessageCell cellReuseIdentifier]];
[self.collectionView registerClass:[OWSUnreadIndicatorCell class]
forCellWithReuseIdentifier:[OWSUnreadIndicatorCell cellReuseIdentifier]];
[self.collectionView registerClass:[OWSContactOffersCell class]
forCellWithReuseIdentifier:[OWSContactOffersCell cellReuseIdentifier]];
[self.collectionView registerClass:[OWSMessageCell class]
forCellWithReuseIdentifier:[OWSMessageCell cellReuseIdentifier]];
}
- (void)applicationWillEnterForeground:(NSNotification *)notification
{
[self startReadTimer];
self.isAppInBackground = NO;
}
- (void)applicationDidEnterBackground:(NSNotification *)notification
{
self.isAppInBackground = YES;
if (self.hasClearedUnreadMessagesIndicator) {
self.hasClearedUnreadMessagesIndicator = NO;
[self.dynamicInteractions clearUnreadIndicatorState];
}
[self.cellMediaCache removeAllObjects];
}
- (void)applicationWillResignActive:(NSNotification *)notification
{
[self cancelVoiceMemo];
self.isUserScrolling = NO;
[self saveDraft];
[self markVisibleMessagesAsRead];
[self.cellMediaCache removeAllObjects];
[self cancelReadTimer];
[self dismissPresentedViewControllerIfNecessary];
}
- (void)dismissPresentedViewControllerIfNecessary
{
UIViewController *_Nullable presentedViewController = self.presentedViewController;
if (!presentedViewController) {
DDLogDebug(@"%@ presentedViewController was nil", self.logTag);
return;
}
if ([presentedViewController isKindOfClass:[UIAlertController class]]) {
DDLogDebug(@"%@ dismissing presentedViewController: %@", self.logTag, presentedViewController);
[self dismissViewControllerAnimated:NO completion:nil];
return;
}
if ([presentedViewController isKindOfClass:[UIImagePickerController class]]) {
DDLogDebug(@"%@ dismissing presentedViewController: %@", self.logTag, presentedViewController);
[self dismissViewControllerAnimated:NO completion:nil];
return;
}
}
- (void)viewWillAppear:(BOOL)animated
{
DDLogDebug(@"%@ viewWillAppear", self.logTag);
[self ensureBannerState];
[super viewWillAppear:animated];
// In case we're dismissing a CNContactViewController, or DocumentPicker which requires default system appearance
[UIUtil applySignalAppearence];
// We need to recheck on every appearance, since the user may have left the group in the settings VC,
// or on another device.
[self hideInputIfNeeded];
self.isViewVisible = YES;
// We should have already requested contact access at this point, so this should be a no-op
// unless it ever becomes possible to load this VC without going via the HomeViewController.
[self.contactsManager requestSystemContactsOnce];
[self updateDisappearingMessagesConfiguration];
[self updateBarButtonItems];
[self updateNavigationTitle];
// We want to set the initial scroll state the first time we enter the view.
if (!self.viewHasEverAppeared) {
[self scrollToDefaultPosition];
}
[self updateLastVisibleTimestamp];
}
- (NSIndexPath *_Nullable)indexPathOfUnreadMessagesIndicator
{
NSInteger row = 0;
for (ConversationViewItem *viewItem in self.viewItems) {
OWSInteractionType interactionType
= (viewItem ? viewItem.interaction.interactionType : OWSInteractionType_Unknown);
if (interactionType == OWSInteractionType_UnreadIndicator) {
return [NSIndexPath indexPathForRow:row inSection:0];
}
row++;
}
return nil;
}
- (void)scrollToDefaultPosition
{
if (self.isUserScrolling) {
return;
}
NSIndexPath *_Nullable indexPath = [self indexPathOfUnreadMessagesIndicator];
if (indexPath) {
if (indexPath.section == 0 && indexPath.row == 0) {
[self.collectionView setContentOffset:CGPointZero animated:NO];
} else {
[self.collectionView scrollToItemAtIndexPath:indexPath
atScrollPosition:UICollectionViewScrollPositionTop
animated:NO];
}
} else {
[self scrollToBottomAnimated:NO];
}
}
- (void)scrollToUnreadIndicatorAnimated
{
if (self.isUserScrolling) {
return;
}
NSIndexPath *_Nullable indexPath = [self indexPathOfUnreadMessagesIndicator];
if (indexPath) {
if (indexPath.section == 0 && indexPath.row == 0) {
[self.collectionView setContentOffset:CGPointZero animated:YES];
} else {
[self.collectionView scrollToItemAtIndexPath:indexPath
atScrollPosition:UICollectionViewScrollPositionTop
animated:YES];
}
}
}
- (void)resetContentAndLayout
{
// Avoid layout corrupt issues and out-of-date message subtitles.
[self.collectionView.collectionViewLayout invalidateLayout];
[self.collectionView reloadData];
}
- (void)setUserHasScrolled:(BOOL)userHasScrolled
{
_userHasScrolled = userHasScrolled;
[self ensureBannerState];
}
// Returns a collection of the group members who are "no longer verified".
- (NSArray<NSString *> *)noLongerVerifiedRecipientIds
{
NSMutableArray<NSString *> *result = [NSMutableArray new];
for (NSString *recipientId in self.thread.recipientIdentifiers) {
if ([[OWSIdentityManager sharedManager] verificationStateForRecipientId:recipientId]
== OWSVerificationStateNoLongerVerified) {
[result addObject:recipientId];
}
}
return [result copy];
}
- (void)ensureBannerState
{
// This method should be called rarely, so it's simplest to discard and
// rebuild the indicator view every time.
[self.bannerView removeFromSuperview];
self.bannerView = nil;
if (self.userHasScrolled) {
return;
}
NSArray<NSString *> *noLongerVerifiedRecipientIds = [self noLongerVerifiedRecipientIds];
if (noLongerVerifiedRecipientIds.count > 0) {
NSString *message;
if (noLongerVerifiedRecipientIds.count > 1) {
message = NSLocalizedString(@"MESSAGES_VIEW_N_MEMBERS_NO_LONGER_VERIFIED",
@"Indicates that more than one member of this group conversation is no longer verified.");
} else {
NSString *recipientId = [noLongerVerifiedRecipientIds firstObject];
NSString *displayName = [self.contactsManager displayNameForPhoneIdentifier:recipientId];
NSString *format
= (self.isGroupConversation ? NSLocalizedString(@"MESSAGES_VIEW_1_MEMBER_NO_LONGER_VERIFIED_FORMAT",
@"Indicates that one member of this group conversation is no longer "
@"verified. Embeds {{user's name or phone number}}.")
: NSLocalizedString(@"MESSAGES_VIEW_CONTACT_NO_LONGER_VERIFIED_FORMAT",
@"Indicates that this 1:1 conversation is no longer verified. Embeds "
@"{{user's name or phone number}}."));
message = [NSString stringWithFormat:format, displayName];
}
[self createBannerWithTitle:message
bannerColor:[UIColor ows_destructiveRedColor]
tapSelector:@selector(noLongerVerifiedBannerViewWasTapped:)];
return;
}
NSString *blockStateMessage = nil;
if ([self isBlockedContactConversation]) {
blockStateMessage = NSLocalizedString(
@"MESSAGES_VIEW_CONTACT_BLOCKED", @"Indicates that this 1:1 conversation has been blocked.");
} else if (self.isGroupConversation) {
int blockedGroupMemberCount = [self blockedGroupMemberCount];
if (blockedGroupMemberCount == 1) {
blockStateMessage = NSLocalizedString(@"MESSAGES_VIEW_GROUP_1_MEMBER_BLOCKED",
@"Indicates that a single member of this group has been blocked.");
} else if (blockedGroupMemberCount > 1) {
blockStateMessage =
[NSString stringWithFormat:NSLocalizedString(@"MESSAGES_VIEW_GROUP_N_MEMBERS_BLOCKED_FORMAT",
@"Indicates that some members of this group has been blocked. Embeds "
@"{{the number of blocked users in this group}}."),
[OWSFormat formatInt:blockedGroupMemberCount]];
}
}
if (blockStateMessage) {
[self createBannerWithTitle:blockStateMessage
bannerColor:[UIColor ows_destructiveRedColor]
tapSelector:@selector(blockBannerViewWasTapped:)];
return;
}
if ([ThreadUtil shouldShowGroupProfileBannerInThread:self.thread blockingManager:self.blockingManager]) {
[self createBannerWithTitle:
NSLocalizedString(@"MESSAGES_VIEW_GROUP_PROFILE_WHITELIST_BANNER",
@"Text for banner in group conversation view that offers to share your profile with this group.")
bannerColor:[UIColor ows_reminderDarkYellowColor]
tapSelector:@selector(groupProfileWhitelistBannerWasTapped:)];
return;
}
}
- (void)createBannerWithTitle:(NSString *)title bannerColor:(UIColor *)bannerColor tapSelector:(SEL)tapSelector
{
OWSAssert(title.length > 0);
OWSAssert(bannerColor);
UIView *bannerView = [UIView containerView];
bannerView.backgroundColor = bannerColor;
bannerView.layer.cornerRadius = 2.5f;
// Use a shadow to "pop" the indicator above the other views.
bannerView.layer.shadowColor = [UIColor blackColor].CGColor;
bannerView.layer.shadowOffset = CGSizeMake(2, 3);
bannerView.layer.shadowRadius = 2.f;
bannerView.layer.shadowOpacity = 0.35f;
UILabel *label = [UILabel new];
label.font = [UIFont ows_mediumFontWithSize:14.f];
label.text = title;
label.textColor = [UIColor whiteColor];
label.numberOfLines = 0;
label.lineBreakMode = NSLineBreakByWordWrapping;
label.textAlignment = NSTextAlignmentCenter;
UIImage *closeIcon = [UIImage imageNamed:@"banner_close"];
UIImageView *closeButton = [[UIImageView alloc] initWithImage:closeIcon];
[bannerView addSubview:closeButton];
const CGFloat kBannerCloseButtonPadding = 8.f;
[closeButton autoPinEdgeToSuperviewEdge:ALEdgeTop withInset:kBannerCloseButtonPadding];
[closeButton autoPinTrailingToSuperviewMarginWithInset:kBannerCloseButtonPadding];
[closeButton autoSetDimension:ALDimensionWidth toSize:closeIcon.size.width];
[closeButton autoSetDimension:ALDimensionHeight toSize:closeIcon.size.height];
[bannerView addSubview:label];
[label autoPinEdgeToSuperviewEdge:ALEdgeTop withInset:5];
[label autoPinEdgeToSuperviewEdge:ALEdgeBottom withInset:5];
const CGFloat kBannerHPadding = 15.f;
[label autoPinLeadingToSuperviewMarginWithInset:kBannerHPadding];
const CGFloat kBannerHSpacing = 10.f;
[closeButton autoPinLeadingToTrailingEdgeOfView:label offset:kBannerHSpacing];
[bannerView addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:tapSelector]];
[self.view addSubview:bannerView];
[bannerView autoPinToTopLayoutGuideOfViewController:self withInset:10];
[bannerView autoHCenterInSuperview];
CGFloat labelDesiredWidth = [label sizeThatFits:CGSizeZero].width;
CGFloat bannerDesiredWidth
= (labelDesiredWidth + kBannerHPadding + kBannerHSpacing + closeIcon.size.width + kBannerCloseButtonPadding);
const CGFloat kMinBannerHMargin = 20.f;
if (bannerDesiredWidth + kMinBannerHMargin * 2.f >= self.view.width) {
[bannerView autoPinWidthToSuperviewWithMargin:kMinBannerHMargin];
}
[self.view layoutSubviews];
self.bannerView = bannerView;
}
- (void)blockBannerViewWasTapped:(UIGestureRecognizer *)sender
{
if (sender.state != UIGestureRecognizerStateRecognized) {
return;
}
if ([self isBlockedContactConversation]) {
// If this a blocked 1:1 conversation, offer to unblock the user.
[self showUnblockContactUI:nil];
} else if (self.isGroupConversation) {
// If this a group conversation with at least one blocked member,
// Show the block list view.
int blockedGroupMemberCount = [self blockedGroupMemberCount];
if (blockedGroupMemberCount > 0) {
BlockListViewController *vc = [[BlockListViewController alloc] init];
[self.navigationController pushViewController:vc animated:YES];
}
}
}
- (void)groupProfileWhitelistBannerWasTapped:(UIGestureRecognizer *)sender
{
if (sender.state != UIGestureRecognizerStateRecognized) {
return;
}
[self presentAddThreadToProfileWhitelistWithSuccess:^{
[self ensureBannerState];
}];
}
- (void)noLongerVerifiedBannerViewWasTapped:(UIGestureRecognizer *)sender
{
if (sender.state == UIGestureRecognizerStateRecognized) {
NSArray<NSString *> *noLongerVerifiedRecipientIds = [self noLongerVerifiedRecipientIds];
if (noLongerVerifiedRecipientIds.count < 1) {
return;
}
BOOL hasMultiple = noLongerVerifiedRecipientIds.count > 1;
UIAlertController *actionSheetController =
[UIAlertController alertControllerWithTitle:nil
message:nil
preferredStyle:UIAlertControllerStyleActionSheet];
__weak ConversationViewController *weakSelf = self;
UIAlertAction *verifyAction = [UIAlertAction
actionWithTitle:(hasMultiple ? NSLocalizedString(@"VERIFY_PRIVACY_MULTIPLE",
@"Label for button or row which allows users to verify the safety "
@"numbers of multiple users.")
: NSLocalizedString(@"VERIFY_PRIVACY",
@"Label for button or row which allows users to verify the safety "
@"number of another user."))style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
[weakSelf showNoLongerVerifiedUI];
}];
[actionSheetController addAction:verifyAction];
UIAlertAction *dismissAction = [UIAlertAction actionWithTitle:CommonStrings.dismissButton
style:UIAlertActionStyleCancel
handler:^(UIAlertAction *_Nonnull action) {
[weakSelf resetVerificationStateToDefault];
}];
[actionSheetController addAction:dismissAction];
[self dismissKeyBoard];
[self presentViewController:actionSheetController animated:YES completion:nil];
}
}
- (void)resetVerificationStateToDefault
{
OWSAssertIsOnMainThread();
NSArray<NSString *> *noLongerVerifiedRecipientIds = [self noLongerVerifiedRecipientIds];
for (NSString *recipientId in noLongerVerifiedRecipientIds) {
OWSAssert(recipientId.length > 0);
OWSRecipientIdentity *_Nullable recipientIdentity =
[[OWSIdentityManager sharedManager] recipientIdentityForRecipientId:recipientId];
OWSAssert(recipientIdentity);
NSData *identityKey = recipientIdentity.identityKey;
OWSAssert(identityKey.length > 0);
if (identityKey.length < 1) {
continue;
}
[OWSIdentityManager.sharedManager setVerificationState:OWSVerificationStateDefault
identityKey:identityKey
recipientId:recipientId
isUserInitiatedChange:YES];
}
}
- (void)showUnblockContactUI:(nullable BlockActionCompletionBlock)completionBlock
{
OWSAssert([self.thread isKindOfClass:[TSContactThread class]]);
self.userHasScrolled = NO;
// To avoid "noisy" animations (hiding the keyboard before showing
// the action sheet, re-showing it after), hide the keyboard before
// showing the "unblock" action sheet.
//
// Unblocking is a rare interaction, so it's okay to leave the keyboard
// hidden.
[self dismissKeyBoard];
NSString *contactIdentifier = ((TSContactThread *)self.thread).contactIdentifier;
[BlockListUIUtils showUnblockPhoneNumberActionSheet:contactIdentifier
fromViewController:self
blockingManager:_blockingManager
contactsManager:_contactsManager
completionBlock:completionBlock];
}
- (BOOL)isBlockedContactConversation
{
if (![self.thread isKindOfClass:[TSContactThread class]]) {
return NO;
}
NSString *contactIdentifier = ((TSContactThread *)self.thread).contactIdentifier;
return [[_blockingManager blockedPhoneNumbers] containsObject:contactIdentifier];
}
- (int)blockedGroupMemberCount
{
OWSAssert(self.isGroupConversation);
OWSAssert([self.thread isKindOfClass:[TSGroupThread class]]);
TSGroupThread *groupThread = (TSGroupThread *)self.thread;
int blockedMemberCount = 0;
NSArray<NSString *> *blockedPhoneNumbers = [_blockingManager blockedPhoneNumbers];
for (NSString *contactIdentifier in groupThread.groupModel.groupMemberIds) {
if ([blockedPhoneNumbers containsObject:contactIdentifier]) {
blockedMemberCount++;
}
}
return blockedMemberCount;
}
- (void)startReadTimer
{
[self.readTimer invalidate];
self.readTimer = [NSTimer weakScheduledTimerWithTimeInterval:3.f
target:self
selector:@selector(readTimerDidFire)
userInfo:nil
repeats:YES];
}
- (void)readTimerDidFire
{
[self markVisibleMessagesAsRead];
}
- (void)cancelReadTimer
{
[self.readTimer invalidate];
self.readTimer = nil;
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
[ProfileFetcherJob runWithThread:self.thread networkManager:self.networkManager];
[self markVisibleMessagesAsRead];
[self startReadTimer];
[self updateNavigationBarSubtitleLabel];
[self updateBackButtonUnreadCount];
switch (self.actionOnOpen) {
case ConversationViewActionNone:
break;
case ConversationViewActionCompose:
[self popKeyBoard];
break;
case ConversationViewActionAudioCall:
[self startAudioCall];
break;
case ConversationViewActionVideoCall:
[self startVideoCall];
break;
}
self.actionOnOpen = ConversationViewActionNone;
self.isViewCompletelyAppeared = YES;
self.viewHasEverAppeared = YES;
// HACK: Because the inputToolbar is the inputAccessoryView, we make some special considertations WRT it's firstResponder status.
//
// When a view controller is presented, it is first responder. However if we resign first responder
// and the view re-appears, without being presented, the inputToolbar can become invisible.
// e.g. specifically works around the scenario:
// - Present this VC
// - Longpress on a message to show edit menu, which entails making the pressed view the first responder.
// - Begin presenting another view, e.g. swipe-left for details or swipe-right to go back, but quit part way, so that you remain on the conversation view
// - toolbar will be not be visible unless we reaquire first responder.
if (!self.isFirstResponder) {
// We don't have to worry about the input toolbar being visible if the inputToolbar.textView is first responder
// In fact doing so would unnecessarily dismiss the keyboard which is probably not desirable and at least
// a distracting animation.
if (!self.inputToolbar.isInputTextViewFirstResponder) {
DDLogDebug(@"%@ reclaiming first responder to ensure toolbar is shown.", self.logTag);
[self becomeFirstResponder];
}
}
}
// `viewWillDisappear` is called whenever the view *starts* to disappear,
// but, as is the case with the "pan left for message details view" gesture,
// this can be canceled. As such, we shouldn't tear down anything expensive
// until `viewDidDisappear`.
- (void)viewWillDisappear:(BOOL)animated
{
DDLogDebug(@"%@ viewWillDisappear", self.logTag);
[super viewWillDisappear:animated];
self.isViewCompletelyAppeared = NO;
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
self.userHasScrolled = NO;
self.isViewVisible = NO;
[self.audioAttachmentPlayer stop];
self.audioAttachmentPlayer = nil;
[self cancelReadTimer];
[self saveDraft];
[self markVisibleMessagesAsRead];
[self cancelVoiceMemo];
[self.cellMediaCache removeAllObjects];
self.isUserScrolling = NO;
}
#pragma mark - Initiliazers
- (void)updateNavigationTitle
{
NSAttributedString *name;
if (self.thread.isGroupThread) {
if (self.thread.name.length == 0) {
name = [[NSAttributedString alloc] initWithString:[MessageStrings newGroupDefaultTitle]];
} else {
name = [[NSAttributedString alloc] initWithString:self.thread.name];
}
} else {
OWSAssert(self.thread.contactIdentifier);
name = [self.contactsManager
attributedStringForConversationTitleWithPhoneIdentifier:self.thread.contactIdentifier
primaryFont:self.headerView.titlePrimaryFont
secondaryFont:self.headerView.titleSecondaryFont];
}
self.title = nil;
if ([name isEqual:self.headerView.attributedTitle]) {
return;
}
self.headerView.attributedTitle = name;
}
- (void)createHeaderViews
{
_backButtonUnreadCountView = [UIView new];
_backButtonUnreadCountView.layer.cornerRadius = self.unreadCountViewDiameter / 2;
_backButtonUnreadCountView.backgroundColor = [UIColor redColor];
_backButtonUnreadCountView.hidden = YES;
_backButtonUnreadCountView.userInteractionEnabled = NO;
_backButtonUnreadCountLabel = [UILabel new];
_backButtonUnreadCountLabel.backgroundColor = [UIColor clearColor];
_backButtonUnreadCountLabel.textColor = [UIColor whiteColor];
_backButtonUnreadCountLabel.font = [UIFont systemFontOfSize:11];
_backButtonUnreadCountLabel.textAlignment = NSTextAlignmentCenter;
ConversationHeaderView *headerView =
[[ConversationHeaderView alloc] initWithThread:self.thread contactsManager:self.contactsManager];
self.headerView = headerView;
headerView.delegate = self;
self.navigationItem.titleView = headerView;
if (@available(iOS 11, *)) {
// Do nothing, we use autolayout/intrinsic content size to grow
} else {
// Request "full width" title; the navigation bar will truncate this
// to fit between the left and right buttons.
CGSize screenSize = [UIScreen mainScreen].bounds.size;
CGRect headerFrame = CGRectMake(0, 0, screenSize.width, 44);
headerView.frame = headerFrame;
}
#ifdef USE_DEBUG_UI
[headerView addGestureRecognizer:[[UILongPressGestureRecognizer alloc]
initWithTarget:self
action:@selector(navigationTitleLongPressed:)]];
#endif
[self updateNavigationBarSubtitleLabel];
}
- (CGFloat)unreadCountViewDiameter
{
return 16;
}
- (void)createBackButton
{
UIBarButtonItem *backItem = [self createOWSBackButton];
if (backItem.customView) {
// This method gets called multiple times, so it's important we re-layout the unread badge
// with respect to the new backItem.
[backItem.customView addSubview:_backButtonUnreadCountView];
// TODO: The back button assets are assymetrical. There are strong reasons
// to use spacing in the assets to manipulate the size and positioning of
// bar button items, but it means we'll probably need separate RTL and LTR
// flavors of these assets.
[_backButtonUnreadCountView autoPinEdgeToSuperviewEdge:ALEdgeTop withInset:-6];
[_backButtonUnreadCountView autoPinLeadingToSuperviewMarginWithInset:1];
[_backButtonUnreadCountView autoSetDimension:ALDimensionHeight toSize:self.unreadCountViewDiameter];
// We set a min width, but we will also pin to our subview label, so we can grow to accommodate multiple digits.
[_backButtonUnreadCountView autoSetDimension:ALDimensionWidth
toSize:self.unreadCountViewDiameter
relation:NSLayoutRelationGreaterThanOrEqual];
[_backButtonUnreadCountView addSubview:_backButtonUnreadCountLabel];
[_backButtonUnreadCountLabel autoPinWidthToSuperviewWithMargin:4];
[_backButtonUnreadCountLabel autoPinHeightToSuperview];
// Initialize newly created unread count badge to accurately reflect the current unread count.
[self updateBackButtonUnreadCount];
}
self.navigationItem.leftBarButtonItem = backItem;
}
- (void)updateBarButtonItems
{
if (self.userLeftGroup) {
self.navigationItem.rightBarButtonItems = @[];
return;
}
const CGFloat kBarButtonSize = 44;
NSMutableArray<UIBarButtonItem *> *barButtons = [NSMutableArray new];
if ([self canCall]) {
// We use UIButtons with [UIBarButtonItem initWithCustomView:...] instead of
// UIBarButtonItem in order to ensure that these buttons are spaced tightly.
// The contents of the navigation bar are cramped in this view.
UIButton *callButton = [UIButton buttonWithType:UIButtonTypeCustom];
UIImage *image = [UIImage imageNamed:@"button_phone_white"];
[callButton setImage:image forState:UIControlStateNormal];
UIEdgeInsets imageEdgeInsets = UIEdgeInsetsZero;
// We normally would want to use left and right insets that ensure the button
// is square and the icon is centered. However UINavigationBar doesn't offer us
// control over the margins and spacing of its content, and the buttons end up
// too far apart and too far from the edge of the screen. So we use a smaller
// right inset tighten up the layout.
imageEdgeInsets.left = round((kBarButtonSize - image.size.width) * 0.5f);
imageEdgeInsets.right = round((kBarButtonSize - (image.size.width + imageEdgeInsets.left)) * 0.5f);
imageEdgeInsets.top = round((kBarButtonSize - image.size.height) * 0.5f);
imageEdgeInsets.bottom = round(kBarButtonSize - (image.size.height + imageEdgeInsets.top));
callButton.imageEdgeInsets = imageEdgeInsets;
callButton.accessibilityLabel = NSLocalizedString(@"CALL_LABEL", "Accessibility label for placing call button");
[callButton addTarget:self action:@selector(startAudioCall) forControlEvents:UIControlEventTouchUpInside];
callButton.frame = CGRectMake(0,
0,
round(image.size.width + imageEdgeInsets.left + imageEdgeInsets.right),
round(image.size.height + imageEdgeInsets.top + imageEdgeInsets.bottom));
[barButtons addObject:[[UIBarButtonItem alloc] initWithCustomView:callButton]];
}
if (self.disappearingMessagesConfiguration.isEnabled) {
DisappearingTimerConfigurationView *timerView = [[DisappearingTimerConfigurationView alloc]
initWithDurationSeconds:self.disappearingMessagesConfiguration.durationSeconds];
timerView.delegate = self;
timerView.tintColor = UIColor.whiteColor;
// As of iOS11, we can size barButton item custom views with autoLayout.
// Before that, though we can still use autoLayout *within* the customView,
// setting the view's size with constraints causes the customView to be temporarily
// laid out with a misplaced origin.
if (@available(iOS 11.0, *)) {
[timerView autoSetDimensionsToSize:CGSizeMake(36, 44)];
} else {
timerView.frame = CGRectMake(0, 0, 36, 44);
}
[barButtons addObject:[[UIBarButtonItem alloc] initWithCustomView:timerView]];
}
self.navigationItem.rightBarButtonItems = [barButtons copy];
}
- (void)updateNavigationBarSubtitleLabel
{
NSMutableAttributedString *subtitleText = [NSMutableAttributedString new];
if (self.thread.isMuted) {
// Show a "mute" icon before the navigation bar subtitle if this thread is muted.
[subtitleText
appendAttributedString:[[NSAttributedString alloc]
initWithString:@"\ue067 "
attributes:@{
NSFontAttributeName : [UIFont ows_elegantIconsFont:7.f],
NSForegroundColorAttributeName : [UIColor colorWithWhite:0.9f alpha:1.f],
}]];
}
BOOL isVerified = YES;
for (NSString *recipientId in self.thread.recipientIdentifiers) {
if ([[OWSIdentityManager sharedManager] verificationStateForRecipientId:recipientId]
!= OWSVerificationStateVerified) {
isVerified = NO;
break;
}
}
if (isVerified) {
// Show a "checkmark" icon before the navigation bar subtitle if this thread is verified.
[subtitleText
appendAttributedString:[[NSAttributedString alloc]
initWithString:@"\uf00c "
attributes:@{
NSFontAttributeName : [UIFont ows_fontAwesomeFont:10.f],
NSForegroundColorAttributeName : [UIColor colorWithWhite:0.9f alpha:1.f],
}]];
}
if (self.userLeftGroup) {
[subtitleText
appendAttributedString:[[NSAttributedString alloc]
initWithString:NSLocalizedString(@"GROUP_YOU_LEFT", @"")
attributes:@{
NSFontAttributeName : self.headerView.subtitleFont,
NSForegroundColorAttributeName : [UIColor colorWithWhite:0.9f alpha:1.f],
}]];
} else {
[subtitleText appendAttributedString:
[[NSAttributedString alloc]
initWithString:NSLocalizedString(@"MESSAGES_VIEW_TITLE_SUBTITLE",
@"The subtitle for the messages view title indicates that the "
@"title can be tapped to access settings for this conversation.")
attributes:@{
NSFontAttributeName : self.headerView.subtitleFont,
NSForegroundColorAttributeName : [UIColor colorWithWhite:0.9f alpha:1.f],
}]];
}
self.headerView.attributedSubtitle = subtitleText;
}
#pragma mark - Identity
/**
* Shows confirmation dialog if at least one of the recipient id's is not confirmed.
*
* returns YES if an alert was shown
* NO if there were no unconfirmed identities
*/
- (BOOL)showSafetyNumberConfirmationIfNecessaryWithConfirmationText:(NSString *)confirmationText
completion:(void (^)(BOOL didConfirmIdentity))completionHandler
{
return [SafetyNumberConfirmationAlert presentAlertIfNecessaryWithRecipientIds:self.thread.recipientIdentifiers
confirmationText:confirmationText
contactsManager:self.contactsManager
completion:^(BOOL didShowAlert) {
// Pre iOS-11, the keyboard and inputAccessoryView will obscure the alert if the keyboard is up when the
// alert is presented, so after hiding it, we regain first responder here.
if (@available(iOS 11.0, *)) {
// do nothing
} else {
[self becomeFirstResponder];
}
completionHandler(didShowAlert);
}
beforePresentationHandler:^(void) {
if (@available(iOS 11.0, *)) {
// do nothing
} else {
// Pre iOS-11, the keyboard and inputAccessoryView will obscure the alert if the keyboard is up when the
// alert is presented.
[self dismissKeyBoard];
[self resignFirstResponder];
}
}];
}
- (void)showFingerprintWithRecipientId:(NSString *)recipientId
{
// Ensure keyboard isn't hiding the "safety numbers changed" interaction when we
// return from FingerprintViewController.
[self dismissKeyBoard];
[FingerprintViewController presentFromViewController:self recipientId:recipientId];
}
#pragma mark - Calls
- (void)startAudioCall
{
[self callWithVideo:NO];
}
- (void)startVideoCall
{
[self callWithVideo:YES];
}
- (void)callWithVideo:(BOOL)isVideo
{
OWSAssert([self.thread isKindOfClass:[TSContactThread class]]);
if (![self canCall]) {
DDLogWarn(@"Tried to initiate a call but thread is not callable.");
return;
}
__weak ConversationViewController *weakSelf = self;
if ([self isBlockedContactConversation]) {
[self showUnblockContactUI:^(BOOL isBlocked) {
if (!isBlocked) {
[weakSelf callWithVideo:isVideo];
}
}];
return;
}
BOOL didShowSNAlert =
[self showSafetyNumberConfirmationIfNecessaryWithConfirmationText:[CallStrings confirmAndCallButtonTitle]
completion:^(BOOL didConfirmIdentity) {
if (didConfirmIdentity) {
[weakSelf callWithVideo:isVideo];
}
}];
if (didShowSNAlert) {
return;
}
[self.outboundCallInitiator initiateCallWithRecipientId:self.thread.contactIdentifier isVideo:isVideo];
}
- (BOOL)canCall
{
return !(self.isGroupConversation ||
[((TSContactThread *)self.thread).contactIdentifier isEqualToString:[TSAccountManager localNumber]]);
}
#pragma mark - JSQMessagesViewController method overrides
#pragma mark - Dynamic Text
/**
Called whenever the user manually changes the dynamic type options inside Settings.
@param notification NSNotification with the dynamic type change information.
*/
- (void)didChangePreferredContentSize:(NSNotification *)notification
{
DDLogInfo(@"%@ didChangePreferredContentSize", self.logTag);
// Evacuate cached cell sizes.
for (ConversationViewItem *viewItem in self.viewItems) {
[viewItem clearCachedLayoutState];
}
[self resetContentAndLayout];
[self.inputToolbar updateFontSizes];
}
#pragma mark - Actions
- (void)showNoLongerVerifiedUI
{
NSArray<NSString *> *noLongerVerifiedRecipientIds = [self noLongerVerifiedRecipientIds];
if (noLongerVerifiedRecipientIds.count > 1) {
[self showConversationSettingsAndShowVerification:YES];
} else if (noLongerVerifiedRecipientIds.count == 1) {
// Pick one in an arbitrary but deterministic manner.
NSString *recipientId = noLongerVerifiedRecipientIds.lastObject;
[self showFingerprintWithRecipientId:recipientId];
}
}
- (void)showConversationSettings
{
[self showConversationSettingsAndShowVerification:NO];
}
- (void)showConversationSettingsAndShowVerification:(BOOL)showVerification
{
if (self.userLeftGroup) {
DDLogDebug(@"%@ Ignoring request to show conversation settings, since user left group", self.logTag);
return;
}
OWSConversationSettingsViewController *settingsVC = [OWSConversationSettingsViewController new];
settingsVC.conversationSettingsViewDelegate = self;
[settingsVC configureWithThread:self.thread uiDatabaseConnection:self.uiDatabaseConnection];
settingsVC.showVerificationOnAppear = showVerification;
[self.navigationController pushViewController:settingsVC animated:YES];
}
#pragma mark - DisappearingTimerConfigurationViewDelegate
- (void)disappearingTimerConfigurationViewWasTapped:(DisappearingTimerConfigurationView *)disappearingTimerView
{
DDLogDebug(@"%@ Tapped timer in navbar", self.logTag);
[self showConversationSettings];
}
#pragma mark - Load More
- (void)autoLoadMoreIfNecessary
{
if (self.isUserScrolling || !self.isViewVisible || self.isAppInBackground) {
return;
}
if (!self.showLoadMoreHeader) {
return;
}
static const CGFloat kThreshold = 50.f;
if (self.collectionView.contentOffset.y < kThreshold) {
[self loadAnotherPageOfMessages];
}
}
- (void)loadAnotherPageOfMessages
{
BOOL hasEarlierUnseenMessages = self.dynamicInteractions.hasMoreUnseenMessages;
[self loadNMoreMessages:kYapDatabasePageSize];
// Dont auto-scroll after “loading more messages” unless we have “more unseen messages”.
//
// Otherwise, tapping on "load more messages" autoscrolls you downward which is completely wrong.
if (hasEarlierUnseenMessages) {
[self scrollToUnreadIndicatorAnimated];
}
}
- (void)loadNMoreMessages:(NSUInteger)numberOfMessagesToLoad
{
// We want to restore the current scroll state after we update the range, update
// the dynamic interactions and re-layout. Here we take a "before" snapshot.
CGFloat scrollDistanceToBottom = self.safeContentHeight - self.collectionView.contentOffset.y;
self.lastRangeLength = MIN(self.lastRangeLength + numberOfMessagesToLoad, (NSUInteger)kYapDatabaseRangeMaxLength);
[self resetMappings];
[self.layout prepareLayout];
self.collectionView.contentOffset = CGPointMake(0, self.safeContentHeight - scrollDistanceToBottom);
}
- (void)updateShowLoadMoreHeader
{
if (self.lastRangeLength == kYapDatabaseRangeMaxLength) {
self.showLoadMoreHeader = NO;
return;
}
NSUInteger loadWindowSize = [self.messageMappings numberOfItemsInGroup:self.thread.uniqueId];
__block NSUInteger totalMessageCount;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
totalMessageCount =
[[transaction ext:TSMessageDatabaseViewExtensionName] numberOfItemsInGroup:self.thread.uniqueId];
}];
self.showLoadMoreHeader = loadWindowSize < totalMessageCount;
}
- (void)setShowLoadMoreHeader:(BOOL)showLoadMoreHeader
{
BOOL valueChanged = _showLoadMoreHeader != showLoadMoreHeader;
_showLoadMoreHeader = showLoadMoreHeader;
self.loadMoreHeader.hidden = !showLoadMoreHeader;
self.loadMoreHeader.userInteractionEnabled = showLoadMoreHeader;
if (valueChanged) {
[self.collectionView.collectionViewLayout invalidateLayout];
[self.collectionView reloadData];
}
}
- (void)updateDisappearingMessagesConfiguration
{
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *_Nonnull transaction) {
self.disappearingMessagesConfiguration =
[OWSDisappearingMessagesConfiguration fetchObjectWithUniqueID:self.thread.uniqueId transaction:transaction];
}];
}
- (void)setDisappearingMessagesConfiguration:
(nullable OWSDisappearingMessagesConfiguration *)disappearingMessagesConfiguration
{
if (_disappearingMessagesConfiguration.isEnabled == disappearingMessagesConfiguration.isEnabled
&& _disappearingMessagesConfiguration.durationSeconds == disappearingMessagesConfiguration.durationSeconds) {
return;
}
_disappearingMessagesConfiguration = disappearingMessagesConfiguration;
[self updateBarButtonItems];
}
- (void)updateMessageMappingRangeOptions
{
NSUInteger rangeLength = 0;
if (self.lastRangeLength == 0) {
// If this is the first time we're configuring the range length,
// try to take into account the position of the unread indicator.
OWSAssert(self.dynamicInteractions);
if (self.dynamicInteractions.unreadIndicatorPosition) {
NSUInteger unreadIndicatorPosition
= (NSUInteger)[self.dynamicInteractions.unreadIndicatorPosition longValue];
// If there is an unread indicator, increase the initial load window
// to include it.
OWSAssert(unreadIndicatorPosition > 0);
OWSAssert(unreadIndicatorPosition <= kYapDatabaseRangeMaxLength);
// We'd like to include at least N seen messages,
// to give the user the context of where they left off the conversation.
const NSUInteger kPreferredSeenMessageCount = 1;
rangeLength = unreadIndicatorPosition + kPreferredSeenMessageCount;
}
}
// Always try to load at least a single page of messages.
rangeLength = MAX(rangeLength, kYapDatabasePageSize);
// Range size should monotonically increase.
rangeLength = MAX(rangeLength, self.lastRangeLength);
// Enforce max range size.
rangeLength = MIN(rangeLength, kYapDatabaseRangeMaxLength);
self.lastRangeLength = rangeLength;
YapDatabaseViewRangeOptions *rangeOptions =
[YapDatabaseViewRangeOptions flexibleRangeWithLength:rangeLength offset:0 from:YapDatabaseViewEnd];
rangeOptions.maxLength = MAX(rangeLength, kYapDatabaseRangeMaxLength);
rangeOptions.minLength = kYapDatabaseRangeMinLength;
[self.messageMappings setRangeOptions:rangeOptions forGroup:self.thread.uniqueId];
[self updateShowLoadMoreHeader];
[self reloadViewItems];
}
#pragma mark Bubble User Actions
- (void)handleFailedDownloadTapForMessage:(TSMessage *)message
attachmentPointer:(TSAttachmentPointer *)attachmentPointer
{
UIAlertController *actionSheetController = [UIAlertController
alertControllerWithTitle:NSLocalizedString(@"MESSAGES_VIEW_FAILED_DOWNLOAD_ACTIONSHEET_TITLE", comment
: "Action sheet title after tapping on failed download.")
message:nil
preferredStyle:UIAlertControllerStyleActionSheet];
[actionSheetController addAction:[OWSAlerts cancelAction]];
UIAlertAction *deleteMessageAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"TXT_DELETE_TITLE", @"")
style:UIAlertActionStyleDestructive
handler:^(UIAlertAction *_Nonnull action) {
[message remove];
}];
[actionSheetController addAction:deleteMessageAction];
UIAlertAction *retryAction = [UIAlertAction
actionWithTitle:NSLocalizedString(@"MESSAGES_VIEW_FAILED_DOWNLOAD_RETRY_ACTION", @"Action sheet button text")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
OWSAttachmentsProcessor *processor =
[[OWSAttachmentsProcessor alloc] initWithAttachmentPointer:attachmentPointer
networkManager:self.networkManager];
[processor fetchAttachmentsForMessage:message
primaryStorage:self.primaryStorage
success:^(TSAttachmentStream *_Nonnull attachmentStream) {
DDLogInfo(
@"%@ Successfully redownloaded attachment in thread: %@", self.logTag, message.thread);
}
failure:^(NSError *_Nonnull error) {
DDLogWarn(@"%@ Failed to redownload message with error: %@", self.logTag, error);
}];
}];
[actionSheetController addAction:retryAction];
[self dismissKeyBoard];
[self presentViewController:actionSheetController animated:YES completion:nil];
}
- (void)handleUnsentMessageTap:(TSOutgoingMessage *)message
{
UIAlertController *actionSheetController =
[UIAlertController alertControllerWithTitle:message.mostRecentFailureText
message:nil
preferredStyle:UIAlertControllerStyleActionSheet];
[actionSheetController addAction:[OWSAlerts cancelAction]];
UIAlertAction *deleteMessageAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"TXT_DELETE_TITLE", @"")
style:UIAlertActionStyleDestructive
handler:^(UIAlertAction *_Nonnull action) {
[message remove];
}];
[actionSheetController addAction:deleteMessageAction];
UIAlertAction *resendMessageAction =
[UIAlertAction actionWithTitle:NSLocalizedString(@"SEND_AGAIN_BUTTON", @"")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
[self.messageSender enqueueMessage:message
success:^{
DDLogInfo(@"%@ Successfully resent failed message.", self.logTag);
}
failure:^(NSError *_Nonnull error) {
DDLogWarn(@"%@ Failed to send message with error: %@", self.logTag, error);
}];
}];
[actionSheetController addAction:resendMessageAction];
[self dismissKeyBoard];
[self presentViewController:actionSheetController animated:YES completion:nil];
}
- (void)handleErrorMessageTap:(TSErrorMessage *)message
{
OWSAssert(message);
switch (message.errorType) {
case TSErrorMessageInvalidKeyException:
break;
case TSErrorMessageNonBlockingIdentityChange:
[self tappedNonBlockingIdentityChangeForRecipientId:message.recipientId];
return;
case TSErrorMessageWrongTrustedIdentityKey:
OWSAssert([message isKindOfClass:[TSInvalidIdentityKeyErrorMessage class]]);
[self tappedInvalidIdentityKeyErrorMessage:(TSInvalidIdentityKeyErrorMessage *)message];
return;
case TSErrorMessageMissingKeyId:
// Unused.
break;
case TSErrorMessageNoSession:
break;
case TSErrorMessageInvalidMessage:
[self tappedCorruptedMessage:message];
return;
case TSErrorMessageDuplicateMessage:
// Unused.
break;
case TSErrorMessageInvalidVersion:
break;
case TSErrorMessageUnknownContactBlockOffer:
// Unused.
OWSFail(@"TSErrorMessageUnknownContactBlockOffer");
return;
case TSErrorMessageGroupCreationFailed:
[self resendGroupUpdateForErrorMessage:message];
return;
}
DDLogWarn(@"%@ Unhandled tap for error message:%@", self.logTag, message);
}
- (void)tappedNonBlockingIdentityChangeForRecipientId:(nullable NSString *)signalId
{
if (signalId == nil) {
if (self.thread.isGroupThread) {
// Before 2.13 we didn't track the recipient id in the identity change error.
DDLogWarn(@"%@ Ignoring tap on legacy nonblocking identity change since it has no signal id", self.logTag);
} else {
DDLogInfo(
@"%@ Assuming tap on legacy nonblocking identity change corresponds to current contact thread: %@",
self.logTag,
self.thread.contactIdentifier);
signalId = self.thread.contactIdentifier;
}
}
[self showFingerprintWithRecipientId:signalId];
}
- (void)handleInfoMessageTap:(TSInfoMessage *)message
{
OWSAssert(message);
switch (message.messageType) {
case TSInfoMessageUserNotRegistered:
break;
case TSInfoMessageTypeSessionDidEnd:
break;
case TSInfoMessageTypeUnsupportedMessage:
// Unused.
break;
case TSInfoMessageAddToContactsOffer:
// Unused.
OWSFail(@"TSInfoMessageAddToContactsOffer");
return;
case TSInfoMessageAddUserToProfileWhitelistOffer:
// Unused.
OWSFail(@"TSInfoMessageAddUserToProfileWhitelistOffer");
return;
case TSInfoMessageAddGroupToProfileWhitelistOffer:
// Unused.
OWSFail(@"TSInfoMessageAddGroupToProfileWhitelistOffer");
return;
case TSInfoMessageTypeGroupUpdate:
[self showConversationSettings];
return;
case TSInfoMessageTypeGroupQuit:
break;
case TSInfoMessageTypeDisappearingMessagesUpdate:
[self showConversationSettings];
return;
case TSInfoMessageVerificationStateChange:
[self showFingerprintWithRecipientId:((OWSVerificationStateChangeMessage *)message).recipientId];
break;
}
DDLogInfo(@"%@ Unhandled tap for info message:%@", self.logTag, message);
}
- (void)tappedCorruptedMessage:(TSErrorMessage *)message
{
NSString *alertMessage = [NSString
stringWithFormat:NSLocalizedString(@"CORRUPTED_SESSION_DESCRIPTION", @"ActionSheet title"), self.thread.name];
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:nil
message:alertMessage
preferredStyle:UIAlertControllerStyleAlert];
[alertController addAction:[OWSAlerts cancelAction]];
UIAlertAction *resetSessionAction = [UIAlertAction
actionWithTitle:NSLocalizedString(@"FINGERPRINT_SHRED_KEYMATERIAL_BUTTON", @"")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
if (![self.thread isKindOfClass:[TSContactThread class]]) {
// Corrupt Message errors only appear in contact threads.
DDLogError(@"%@ Unexpected request to reset session in group thread. Refusing", self.logTag);
return;
}
TSContactThread *contactThread = (TSContactThread *)self.thread;
[OWSSessionResetJob runWithContactThread:contactThread
messageSender:self.messageSender
primaryStorage:self.primaryStorage];
}];
[alertController addAction:resetSessionAction];
[self dismissKeyBoard];
[self presentViewController:alertController animated:YES completion:nil];
}
- (void)tappedInvalidIdentityKeyErrorMessage:(TSInvalidIdentityKeyErrorMessage *)errorMessage
{
NSString *keyOwner = [self.contactsManager displayNameForPhoneIdentifier:errorMessage.theirSignalId];
NSString *titleFormat = NSLocalizedString(@"SAFETY_NUMBERS_ACTIONSHEET_TITLE", @"Action sheet heading");
NSString *titleText = [NSString stringWithFormat:titleFormat, keyOwner];
UIAlertController *actionSheetController =
[UIAlertController alertControllerWithTitle:titleText
message:nil
preferredStyle:UIAlertControllerStyleActionSheet];
[actionSheetController addAction:[OWSAlerts cancelAction]];
UIAlertAction *showSafteyNumberAction =
[UIAlertAction actionWithTitle:NSLocalizedString(@"SHOW_SAFETY_NUMBER_ACTION", @"Action sheet item")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
DDLogInfo(@"%@ Remote Key Changed actions: Show fingerprint display", self.logTag);
[self showFingerprintWithRecipientId:errorMessage.theirSignalId];
}];
[actionSheetController addAction:showSafteyNumberAction];
UIAlertAction *acceptSafetyNumberAction =
[UIAlertAction actionWithTitle:NSLocalizedString(@"ACCEPT_NEW_IDENTITY_ACTION", @"Action sheet item")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
DDLogInfo(@"%@ Remote Key Changed actions: Accepted new identity key", self.logTag);
// DEPRECATED: we're no longer creating these incoming SN error's per message,
// but there will be some legacy ones in the wild, behind which await
// as-of-yet-undecrypted messages
if ([errorMessage isKindOfClass:[TSInvalidIdentityKeyReceivingErrorMessage class]]) {
[errorMessage acceptNewIdentityKey];
}
}];
[actionSheetController addAction:acceptSafetyNumberAction];
[self dismissKeyBoard];
[self presentViewController:actionSheetController animated:YES completion:nil];
}
- (void)handleCallTap:(TSCall *)call
{
OWSAssert(call);
if (![self.thread isKindOfClass:[TSContactThread class]]) {
OWSFail(@"%@ unexpected thread: %@ in %s", self.logTag, self.thread, __PRETTY_FUNCTION__);
return;
}
TSContactThread *contactThread = (TSContactThread *)self.thread;
NSString *displayName = [self.contactsManager displayNameForPhoneIdentifier:contactThread.contactIdentifier];
UIAlertController *alertController = [UIAlertController
alertControllerWithTitle:[CallStrings callBackAlertTitle]
message:[NSString stringWithFormat:[CallStrings callBackAlertMessageFormat], displayName]
preferredStyle:UIAlertControllerStyleAlert];
__weak ConversationViewController *weakSelf = self;
UIAlertAction *callAction = [UIAlertAction actionWithTitle:[CallStrings callBackAlertCallButton]
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
[weakSelf startAudioCall];
}];
[alertController addAction:callAction];
[alertController addAction:[OWSAlerts cancelAction]];
[self dismissKeyBoard];
[self presentViewController:alertController animated:YES completion:nil];
}
#pragma mark - ConversationViewCellDelegate
- (NSAttributedString *)attributedContactOrProfileNameForPhoneIdentifier:(NSString *)recipientId
{
OWSAssertIsOnMainThread();
OWSAssert(recipientId.length > 0);
return [self.contactsManager attributedContactOrProfileNameForPhoneIdentifier:recipientId];
}
- (void)tappedUnknownContactBlockOfferMessage:(OWSContactOffersInteraction *)interaction
{
if (![self.thread isKindOfClass:[TSContactThread class]]) {
OWSFail(@"%@ unexpected thread: %@ in %s", self.logTag, self.thread, __PRETTY_FUNCTION__);
return;
}
TSContactThread *contactThread = (TSContactThread *)self.thread;
NSString *displayName = [self.contactsManager displayNameForPhoneIdentifier:interaction.recipientId];
NSString *title =
[NSString stringWithFormat:NSLocalizedString(@"BLOCK_OFFER_ACTIONSHEET_TITLE_FORMAT",
@"Title format for action sheet that offers to block an unknown user."
@"Embeds {{the unknown user's name or phone number}}."),
[BlockListUIUtils formatDisplayNameForAlertTitle:displayName]];
UIAlertController *actionSheetController =
[UIAlertController alertControllerWithTitle:title message:nil preferredStyle:UIAlertControllerStyleActionSheet];
[actionSheetController addAction:[OWSAlerts cancelAction]];
UIAlertAction *blockAction = [UIAlertAction
actionWithTitle:NSLocalizedString(
@"BLOCK_OFFER_ACTIONSHEET_BLOCK_ACTION", @"Action sheet that will block an unknown user.")
style:UIAlertActionStyleDestructive
handler:^(UIAlertAction *_Nonnull action) {
DDLogInfo(@"%@ Blocking an unknown user.", self.logTag);
[self.blockingManager addBlockedPhoneNumber:interaction.recipientId];
// Delete the offers.
[self.editingDatabaseConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
contactThread.hasDismissedOffers = YES;
[contactThread saveWithTransaction:transaction];
[interaction removeWithTransaction:transaction];
}];
}];
[actionSheetController addAction:blockAction];
[self dismissKeyBoard];
[self presentViewController:actionSheetController animated:YES completion:nil];
}
- (void)tappedAddToContactsOfferMessage:(OWSContactOffersInteraction *)interaction
{
if (!self.contactsManager.supportsContactEditing) {
OWSFail(@"%@ Contact editing not supported", self.logTag);
return;
}
if (![self.thread isKindOfClass:[TSContactThread class]]) {
OWSFail(@"%@ unexpected thread: %@ in %s", self.logTag, self.thread, __PRETTY_FUNCTION__);
return;
}
TSContactThread *contactThread = (TSContactThread *)self.thread;
[self.contactsViewHelper presentContactViewControllerForRecipientId:contactThread.contactIdentifier
fromViewController:self
editImmediately:YES];
// Delete the offers.
[self.editingDatabaseConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
contactThread.hasDismissedOffers = YES;
[contactThread saveWithTransaction:transaction];
[interaction removeWithTransaction:transaction];
}];
}
- (void)tappedAddToProfileWhitelistOfferMessage:(OWSContactOffersInteraction *)interaction
{
// This is accessed via the contact offer. Group whitelisting happens via a different interaction.
if (![self.thread isKindOfClass:[TSContactThread class]]) {
OWSFail(@"%@ unexpected thread: %@ in %s", self.logTag, self.thread, __PRETTY_FUNCTION__);
return;
}
TSContactThread *contactThread = (TSContactThread *)self.thread;
[self presentAddThreadToProfileWhitelistWithSuccess:^() {
// Delete the offers.
[self.editingDatabaseConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
contactThread.hasDismissedOffers = YES;
[contactThread saveWithTransaction:transaction];
[interaction removeWithTransaction:transaction];
}];
}];
}
- (void)presentAddThreadToProfileWhitelistWithSuccess:(void (^)(void))successHandler
{
[[OWSProfileManager sharedManager] presentAddThreadToProfileWhitelist:self.thread
fromViewController:self
success:successHandler];
}
#pragma mark - OWSMessageBubbleViewDelegate
- (void)didTapImageViewItem:(ConversationViewItem *)viewItem
attachmentStream:(TSAttachmentStream *)attachmentStream
imageView:(UIView *)imageView
{
OWSAssertIsOnMainThread();
OWSAssert(viewItem);
OWSAssert(attachmentStream);
OWSAssert(imageView);
[self dismissKeyBoard];
if (![viewItem.interaction isKindOfClass:[TSMessage class]]) {
OWSFail(@"Unexpected viewItem.interaction");
return;
}
TSMessage *mediaMessage = (TSMessage *)viewItem.interaction;
MediaGalleryViewController *vc = [[MediaGalleryViewController alloc]
initWithThread:self.thread
uiDatabaseConnection:self.uiDatabaseConnection
options:MediaGalleryOptionSliderEnabled | MediaGalleryOptionShowAllMediaButton];
[vc presentDetailViewFromViewController:self mediaMessage:mediaMessage replacingView:imageView];
}
- (void)didTapVideoViewItem:(ConversationViewItem *)viewItem
attachmentStream:(TSAttachmentStream *)attachmentStream
imageView:(UIImageView *)imageView
{
OWSAssertIsOnMainThread();
OWSAssert(viewItem);
OWSAssert(attachmentStream);
[self dismissKeyBoard];
if (![viewItem.interaction isKindOfClass:[TSMessage class]]) {
OWSFail(@"Unexpected viewItem.interaction");
return;
}
TSMessage *mediaMessage = (TSMessage *)viewItem.interaction;
MediaGalleryViewController *vc = [[MediaGalleryViewController alloc]
initWithThread:self.thread
uiDatabaseConnection:self.uiDatabaseConnection
options:MediaGalleryOptionSliderEnabled | MediaGalleryOptionShowAllMediaButton];
[vc presentDetailViewFromViewController:self mediaMessage:mediaMessage replacingView:imageView];
}
- (void)didTapAudioViewItem:(ConversationViewItem *)viewItem attachmentStream:(TSAttachmentStream *)attachmentStream
{
OWSAssertIsOnMainThread();
OWSAssert(viewItem);
OWSAssert(attachmentStream);
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath:[attachmentStream.mediaURL path]]) {
OWSFail(@"%@ Missing video file: %@", self.logTag, attachmentStream.mediaURL);
}
[self dismissKeyBoard];
if (self.audioAttachmentPlayer) {
// Is this player associated with this media adapter?
if (self.audioAttachmentPlayer.owner == viewItem) {
// Tap to pause & unpause.
[self.audioAttachmentPlayer togglePlayState];
return;
}
[self.audioAttachmentPlayer stop];
self.audioAttachmentPlayer = nil;
}
self.audioAttachmentPlayer = [[OWSAudioPlayer alloc] initWithMediaUrl:attachmentStream.mediaURL delegate:viewItem];
// Associate the player with this media adapter.
self.audioAttachmentPlayer.owner = viewItem;
[self.audioAttachmentPlayer playWithPlaybackAudioCategory];
}
- (void)didTapTruncatedTextMessage:(ConversationViewItem *)conversationItem
{
OWSAssertIsOnMainThread();
OWSAssert(conversationItem);
OWSAssert([conversationItem.interaction isKindOfClass:[TSMessage class]]);
LongTextViewController *view = [[LongTextViewController alloc] initWithViewItem:conversationItem];
[self.navigationController pushViewController:view animated:YES];
}
- (void)didTapContactShareViewItem:(ConversationViewItem *)conversationItem
{
OWSAssertIsOnMainThread();
OWSAssert(conversationItem);
OWSAssert(conversationItem.contactShare);
OWSAssert([conversationItem.interaction isKindOfClass:[TSMessage class]]);
ContactViewController *view = [[ContactViewController alloc] initWithContactShare:conversationItem.contactShare];
[self.navigationController pushViewController:view animated:YES];
}
- (void)didTapSendMessageToContactShare:(ContactShareViewModel *)contactShare
{
OWSAssertIsOnMainThread();
OWSAssert(contactShare);
[self.contactShareViewHelper sendMessageWithContactShare:contactShare fromViewController:self];
}
- (void)didTapSendInviteToContactShare:(ContactShareViewModel *)contactShare
{
OWSAssertIsOnMainThread();
OWSAssert(contactShare);
[self.contactShareViewHelper inviteContactWithContactShare:contactShare fromViewController:self];
}
- (void)didTapShowAddToContactUIForContactShare:(ContactShareViewModel *)contactShare
{
OWSAssertIsOnMainThread();
OWSAssert(contactShare);
[self.contactShareViewHelper addToContactsWithContactShare:contactShare fromViewController:self];
}
- (void)didTapFailedIncomingAttachment:(ConversationViewItem *)viewItem
attachmentPointer:(TSAttachmentPointer *)attachmentPointer
{
OWSAssertIsOnMainThread();
OWSAssert(viewItem);
OWSAssert(attachmentPointer);
// Restart failed downloads
TSMessage *message = (TSMessage *)viewItem.interaction;
[self handleFailedDownloadTapForMessage:message attachmentPointer:attachmentPointer];
}
- (void)didTapFailedOutgoingMessage:(TSOutgoingMessage *)message
{
OWSAssertIsOnMainThread();
OWSAssert(message);
[self handleUnsentMessageTap:message];
}
- (void)didTapConversationItem:(ConversationViewItem *)viewItem
quotedReply:(OWSQuotedReplyModel *)quotedReply
failedThumbnailDownloadAttachmentPointer:(TSAttachmentPointer *)attachmentPointer
{
OWSAssertIsOnMainThread();
OWSAssert(viewItem);
OWSAssert(attachmentPointer);
TSMessage *message = (TSMessage *)viewItem.interaction;
if (![message isKindOfClass:[TSMessage class]]) {
OWSFail(@"%@ in %s message had unexpected class: %@", self.logTag, __PRETTY_FUNCTION__, message.class);
return;
}
OWSAttachmentsProcessor *processor =
[[OWSAttachmentsProcessor alloc] initWithAttachmentPointer:attachmentPointer
networkManager:self.networkManager];
[self.editingDatabaseConnection asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull transaction) {
[processor fetchAttachmentsForMessage:nil
transaction:transaction
success:^(TSAttachmentStream *_Nonnull attachmentStream) {
[self.editingDatabaseConnection
asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull postSuccessTransaction) {
[message setQuotedMessageThumbnailAttachmentStream:attachmentStream];
[message saveWithTransaction:postSuccessTransaction];
}];
}
failure:^(NSError *_Nonnull error) {
DDLogWarn(@"%@ Failed to redownload thumbnail with error: %@", self.logTag, error);
[self.editingDatabaseConnection
asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull postSuccessTransaction) {
[message touchWithTransaction:transaction];
}];
}];
}];
}
- (void)didTapConversationItem:(ConversationViewItem *)viewItem quotedReply:(OWSQuotedReplyModel *)quotedReply
{
OWSAssertIsOnMainThread();
OWSAssert(viewItem);
OWSAssert(quotedReply);
OWSAssert(quotedReply.timestamp > 0);
OWSAssert(quotedReply.authorId.length > 0);
// We try to find the index of the item within the current thread's
// interactions that includes the "quoted interaction".
//
// NOTE: There are two indices:
//
// * The "group index" of the member of the database views group at
// the db conneciton's current checkpoint.
// * The "index row/section" in the message mapping.
//
// NOTE: Since the range _IS NOT_ filtered by author,
// and timestamp collisions are possible, it's possible
// for:
//
// * The range to include more than the "quoted interaction".
// * The range to be non-empty but NOT include the "quoted interaction",
// although this would be a bug.
__block TSInteraction *_Nullable quotedInteraction;
__block NSUInteger threadInteractionCount = 0;
__block NSNumber *_Nullable groupIndex = nil;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
quotedInteraction = [ThreadUtil findInteractionInThreadByTimestamp:quotedReply.timestamp
authorId:quotedReply.authorId
threadUniqueId:self.thread.uniqueId
transaction:transaction];
if (!quotedInteraction) {
return;
}
YapDatabaseAutoViewTransaction *_Nullable extension =
[transaction extension:TSMessageDatabaseViewExtensionName];
if (!extension) {
OWSFail(@"%@ Couldn't load view.", self.logTag);
return;
}
threadInteractionCount = [extension numberOfItemsInGroup:self.thread.uniqueId];
groupIndex = [self findGroupIndexOfThreadInteraction:quotedInteraction transaction:transaction];
}];
if (!quotedInteraction || !groupIndex) {
DDLogError(@"%@ Couldn't find message quoted in quoted reply.", self.logTag);
return;
}
NSUInteger indexRow = 0;
NSUInteger indexSection = 0;
BOOL isInMappings = [self.messageMappings getRow:&indexRow
section:&indexSection
forIndex:groupIndex.unsignedIntegerValue
inGroup:self.thread.uniqueId];
if (!isInMappings) {
NSInteger desiredWindowSize = MAX(0, 1 + (NSInteger)threadInteractionCount - groupIndex.integerValue);
NSUInteger oldLoadWindowSize = [self.messageMappings numberOfItemsInGroup:self.thread.uniqueId];
NSInteger additionalItemsToLoad = MAX(0, desiredWindowSize - (NSInteger)oldLoadWindowSize);
if (additionalItemsToLoad < 1) {
DDLogError(@"%@ Couldn't determine how to load quoted reply.", self.logTag);
return;
}
// Try to load more messages so that the quoted message
// is in the load window.
//
// This may fail if the quoted message is very old, in which
// case we'll load the max number of messages.
[self loadNMoreMessages:(NSUInteger)additionalItemsToLoad];
// `loadNMoreMessages` will reset the mapping and possibly
// integrate new changes, so we need to reload the "group index"
// of the quoted message.
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
groupIndex = [self findGroupIndexOfThreadInteraction:quotedInteraction transaction:transaction];
}];
if (!quotedInteraction || !groupIndex) {
DDLogError(@"%@ Failed to find quoted reply in group.", self.logTag);
return;
}
isInMappings = [self.messageMappings getRow:&indexRow
section:&indexSection
forIndex:groupIndex.unsignedIntegerValue
inGroup:self.thread.uniqueId];
if (!isInMappings) {
DDLogError(@"%@ Could not load quoted reply into mapping.", self.logTag);
return;
}
}
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:(NSInteger)indexRow inSection:(NSInteger)indexSection];
[self.collectionView scrollToItemAtIndexPath:indexPath
atScrollPosition:UICollectionViewScrollPositionTop
animated:YES];
// TODO: Highlight the quoted message?
}
- (nullable NSNumber *)findGroupIndexOfThreadInteraction:(TSInteraction *)interaction
transaction:(YapDatabaseReadTransaction *)transaction
{
OWSAssert(interaction);
OWSAssert(transaction);
YapDatabaseAutoViewTransaction *_Nullable extension = [transaction extension:TSMessageDatabaseViewExtensionName];
if (!extension) {
OWSFail(@"%@ Couldn't load view.", self.logTag);
return nil;
}
NSUInteger groupIndex = 0;
BOOL foundInGroup =
[extension getGroup:nil index:&groupIndex forKey:interaction.uniqueId inCollection:TSInteraction.collection];
if (!foundInGroup) {
DDLogError(@"%@ Couldn't find quoted message in group.", self.logTag);
return nil;
}
return @(groupIndex);
}
- (void)showMetadataViewForViewItem:(ConversationViewItem *)conversationItem
{
OWSAssertIsOnMainThread();
OWSAssert(conversationItem);
OWSAssert([conversationItem.interaction isKindOfClass:[TSMessage class]]);
TSMessage *message = (TSMessage *)conversationItem.interaction;
MessageDetailViewController *view =
[[MessageDetailViewController alloc] initWithViewItem:conversationItem
message:message
mode:MessageMetadataViewModeFocusOnMetadata];
[self.navigationController pushViewController:view animated:YES];
}
- (void)conversationCell:(ConversationViewCell *)cell didTapReplyForViewItem:(ConversationViewItem *)conversationItem
{
DDLogDebug(@"%@ user did tap reply", self.logTag);
TSMessage *message = (TSMessage *)conversationItem.interaction;
if (![message isKindOfClass:[TSMessage class]]) {
OWSFail(@"%@ unexpected reply message: %@", self.logTag, message);
return;
}
__block OWSQuotedReplyModel *quotedReply;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *_Nonnull transaction) {
quotedReply = [OWSQuotedReplyModel quotedReplyForMessage:message transaction:transaction];
}];
if (![quotedReply isKindOfClass:[OWSQuotedReplyModel class]]) {
OWSFail(@"%@ unexpected quotedMessage: %@", self.logTag, quotedReply.class);
return;
}
self.inputToolbar.quotedReply = quotedReply;
[self.inputToolbar beginEditingTextMessage];
}
#pragma mark - System Messages
- (void)didTapSystemMessageWithInteraction:(TSInteraction *)interaction
{
OWSAssertIsOnMainThread();
OWSAssert(interaction);
if ([interaction isKindOfClass:[TSErrorMessage class]]) {
[self handleErrorMessageTap:(TSErrorMessage *)interaction];
} else if ([interaction isKindOfClass:[TSInfoMessage class]]) {
[self handleInfoMessageTap:(TSInfoMessage *)interaction];
} else if ([interaction isKindOfClass:[TSCall class]]) {
[self handleCallTap:(TSCall *)interaction];
} else {
OWSFail(@"Tap for system messages of unknown type: %@", [interaction class]);
}
}
#pragma mark - ContactEditingDelegate
- (void)didFinishEditingContact
{
DDLogDebug(@"%@ %s", self.logTag, __PRETTY_FUNCTION__);
[self dismissViewControllerAnimated:NO completion:nil];
}
#pragma mark - CNContactViewControllerDelegate
- (void)contactViewController:(CNContactViewController *)viewController
didCompleteWithContact:(nullable CNContact *)contact
{
if (contact) {
// Saving normally returns you to the "Show Contact" view
// which we're not interested in, so we skip it here. There is
// an unfortunate blip of the "Show Contact" view on slower devices.
DDLogDebug(@"%@ completed editing contact.", self.logTag);
[self dismissViewControllerAnimated:NO completion:nil];
} else {
DDLogDebug(@"%@ canceled editing contact.", self.logTag);
[self dismissViewControllerAnimated:YES completion:nil];
}
}
#pragma mark - ContactsViewHelperDelegate
- (void)contactsViewHelperDidUpdateContacts
{
[self ensureDynamicInteractions];
}
- (void)ensureDynamicInteractions
{
OWSAssertIsOnMainThread();
const int currentMaxRangeSize = (int)self.lastRangeLength;
const int maxRangeSize = MAX(kConversationInitialMaxRangeSize, currentMaxRangeSize);
// `ensureDynamicInteractionsForThread` should operate on the latest thread contents, so
// we should _read_ from uiDatabaseConnection and _write_ to `editingDatabaseConnection`.
self.dynamicInteractions =
[ThreadUtil ensureDynamicInteractionsForThread:self.thread
contactsManager:self.contactsManager
blockingManager:self.blockingManager
dbConnection:self.editingDatabaseConnection
hideUnreadMessagesIndicator:self.hasClearedUnreadMessagesIndicator
firstUnseenInteractionTimestamp:self.dynamicInteractions.firstUnseenInteractionTimestamp
maxRangeSize:maxRangeSize];
}
- (void)clearUnreadMessagesIndicator
{
OWSAssertIsOnMainThread();
if (self.hasClearedUnreadMessagesIndicator) {
// ensureDynamicInteractionsForThread is somewhat expensive
// so we don't want to call it unnecessarily.
return;
}
// Once we've cleared the unread messages indicator,
// make sure we don't show it again.
self.hasClearedUnreadMessagesIndicator = YES;
if (self.dynamicInteractions.unreadIndicatorPosition) {
// If we've just cleared the "unread messages" indicator,
// update the dynamic interactions.
[self ensureDynamicInteractions];
}
}
- (void)createConversationScrollButtons
{
self.scrollDownButton = [[ConversationScrollButton alloc] initWithIconText:@"\uf103"];
[self.scrollDownButton addTarget:self
action:@selector(scrollDownButtonTapped)
forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:self.scrollDownButton];
[self.scrollDownButton autoSetDimension:ALDimensionWidth toSize:ConversationScrollButton.buttonSize];
[self.scrollDownButton autoSetDimension:ALDimensionHeight toSize:ConversationScrollButton.buttonSize];
self.scrollDownButtonButtomConstraint =
[self.scrollDownButton autoPinEdge:ALEdgeBottom toEdge:ALEdgeBottom ofView:self.collectionView];
[self.scrollDownButton autoPinEdgeToSuperviewEdge:ALEdgeTrailing];
#ifdef DEBUG
self.scrollUpButton = [[ConversationScrollButton alloc] initWithIconText:@"\uf102"];
[self.scrollUpButton addTarget:self
action:@selector(scrollUpButtonTapped)
forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:self.scrollUpButton];
[self.scrollUpButton autoSetDimension:ALDimensionWidth toSize:ConversationScrollButton.buttonSize];
[self.scrollUpButton autoSetDimension:ALDimensionHeight toSize:ConversationScrollButton.buttonSize];
[self.scrollUpButton autoPinToTopLayoutGuideOfViewController:self withInset:0];
[self.scrollUpButton autoPinEdgeToSuperviewEdge:ALEdgeTrailing];
#endif
}
- (void)setHasUnreadMessages:(BOOL)hasUnreadMessages
{
if (_hasUnreadMessages == hasUnreadMessages) {
return;
}
_hasUnreadMessages = hasUnreadMessages;
self.scrollDownButton.hasUnreadMessages = hasUnreadMessages;
[self ensureDynamicInteractions];
}
- (void)scrollDownButtonTapped
{
NSIndexPath *indexPathOfUnreadMessagesIndicator = [self indexPathOfUnreadMessagesIndicator];
if (indexPathOfUnreadMessagesIndicator != nil) {
NSInteger unreadRow = indexPathOfUnreadMessagesIndicator.row;
BOOL isScrolledAboveUnreadIndicator = YES;
NSArray<NSIndexPath *> *visibleIndices = self.collectionView.indexPathsForVisibleItems;
for (NSIndexPath *indexPath in visibleIndices) {
if (indexPath.row > unreadRow) {
isScrolledAboveUnreadIndicator = NO;
break;
}
}
if (isScrolledAboveUnreadIndicator) {
// Only scroll as far as the unread indicator if we're scrolled above the unread indicator.
[[self collectionView] scrollToItemAtIndexPath:indexPathOfUnreadMessagesIndicator
atScrollPosition:UICollectionViewScrollPositionTop
animated:YES];
return;
}
}
[self scrollToBottomAnimated:YES];
}
#ifdef DEBUG
- (void)scrollUpButtonTapped
{
[self.collectionView setContentOffset:CGPointZero animated:YES];
}
#endif
- (void)ensureScrollDownButton
{
OWSAssertIsOnMainThread();
BOOL shouldShowScrollDownButton = NO;
CGFloat scrollSpaceToBottom = (self.safeContentHeight + self.collectionView.contentInset.bottom
- (self.collectionView.contentOffset.y + self.collectionView.frame.size.height));
CGFloat pageHeight = (self.collectionView.frame.size.height
- (self.collectionView.contentInset.top + self.collectionView.contentInset.bottom));
// Show "scroll down" button if user is scrolled up at least
// one page.
BOOL isScrolledUp = scrollSpaceToBottom > pageHeight * 1.f;
if (self.viewItems.count > 0) {
ConversationViewItem *lastViewItem = [self.viewItems lastObject];
OWSAssert(lastViewItem);
if (lastViewItem.interaction.timestampForSorting > self.lastVisibleTimestamp) {
shouldShowScrollDownButton = YES;
} else if (isScrolledUp) {
shouldShowScrollDownButton = YES;
}
}
if (shouldShowScrollDownButton) {
self.scrollDownButton.hidden = NO;
} else {
self.scrollDownButton.hidden = YES;
}
#ifdef DEBUG
BOOL shouldShowScrollUpButton = self.collectionView.contentOffset.y > 0;
if (shouldShowScrollUpButton) {
self.scrollUpButton.hidden = NO;
} else {
self.scrollUpButton.hidden = YES;
}
#endif
}
#pragma mark - Attachment Picking: Contacts
- (void)chooseContactForSending
{
ContactsPicker *contactsPicker =
[[ContactsPicker alloc] initWithDelegate:self multiSelection:NO subtitleCellType:SubtitleCellValueNone];
contactsPicker.title
= NSLocalizedString(@"CONTACT_PICKER_TITLE", @"navbar title for contact picker when sharing a contact");
UINavigationController *navigationController =
[[UINavigationController alloc] initWithRootViewController:contactsPicker];
[self dismissKeyBoard];
[self presentViewController:navigationController animated:YES completion:nil];
}
#pragma mark - Attachment Picking: Documents
- (void)showAttachmentDocumentPickerMenu
{
NSString *allItems = (__bridge NSString *)kUTTypeItem;
NSArray<NSString *> *documentTypes = @[ allItems ];
// UIDocumentPickerModeImport copies to a temp file within our container.
// It uses more memory than "open" but lets us avoid working with security scoped URLs.
UIDocumentPickerMode pickerMode = UIDocumentPickerModeImport;
// TODO: UIDocumentMenuViewController is deprecated; we should use UIDocumentPickerViewController
// instead.
UIDocumentMenuViewController *menuController =
[[UIDocumentMenuViewController alloc] initWithDocumentTypes:documentTypes inMode:pickerMode];
menuController.delegate = self;
UIImage *takeMediaImage = [UIImage imageNamed:@"actionsheet_camera_black"];
OWSAssert(takeMediaImage);
[menuController addOptionWithTitle:NSLocalizedString(
@"MEDIA_FROM_LIBRARY_BUTTON", @"media picker option to choose from library")
image:takeMediaImage
order:UIDocumentMenuOrderFirst
handler:^{
[self chooseFromLibraryAsDocument];
}];
[self dismissKeyBoard];
[self presentViewController:menuController animated:YES completion:nil];
}
#pragma mark - Attachment Picking: GIFs
- (void)showGifPicker
{
GifPickerViewController *view =
[[GifPickerViewController alloc] initWithThread:self.thread messageSender:self.messageSender];
view.delegate = self;
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:view];
[self dismissKeyBoard];
[self presentViewController:navigationController animated:YES completion:nil];
}
#pragma mark GifPickerViewControllerDelegate
- (void)gifPickerDidSelectWithAttachment:(SignalAttachment *)attachment
{
OWSAssert(attachment);
[self tryToSendAttachmentIfApproved:attachment];
[ThreadUtil addThreadToProfileWhitelistIfEmptyContactThread:self.thread];
[self ensureDynamicInteractions];
}
- (void)messageWasSent:(TSOutgoingMessage *)message
{
OWSAssertIsOnMainThread();
OWSAssert(message);
[self updateLastVisibleTimestamp:message.timestampForSorting];
self.lastMessageSentDate = [NSDate new];
[self clearUnreadMessagesIndicator];
self.inputToolbar.quotedReply = nil;
if ([Environment.preferences soundInForeground]) {
[JSQSystemSoundPlayer jsq_playMessageSentSound];
}
}
#pragma mark UIDocumentMenuDelegate
- (void)documentMenu:(UIDocumentMenuViewController *)documentMenu
didPickDocumentPicker:(UIDocumentPickerViewController *)documentPicker
{
documentPicker.delegate = self;
if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(11, 0)) {
// post iOS11, document picker has no blue header.
[UIUtil applyDefaultSystemAppearence];
}
[self dismissKeyBoard];
[self presentViewController:documentPicker animated:YES completion:nil];
}
#pragma mark UIDocumentPickerDelegate
- (void)documentPicker:(UIDocumentPickerViewController *)controller didPickDocumentAtURL:(NSURL *)url
{
DDLogDebug(@"%@ Picked document at url: %@", self.logTag, url);
if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(11, 0)) {
// post iOS11, document picker has no blue header.
[UIUtil applySignalAppearence];
}
if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(11, 0)) {
// post iOS11, document picker has no blue header.
[UIUtil applySignalAppearence];
}
NSString *type;
NSError *typeError;
[url getResourceValue:&type forKey:NSURLTypeIdentifierKey error:&typeError];
if (typeError) {
OWSFail(
@"%@ Determining type of picked document at url: %@ failed with error: %@", self.logTag, url, typeError);
}
if (!type) {
OWSFail(@"%@ falling back to default filetype for picked document at url: %@", self.logTag, url);
type = (__bridge NSString *)kUTTypeData;
}
NSNumber *isDirectory;
NSError *isDirectoryError;
[url getResourceValue:&isDirectory forKey:NSURLIsDirectoryKey error:&isDirectoryError];
if (isDirectoryError) {
OWSFail(@"%@ Determining if picked document at url: %@ was a directory failed with error: %@",
self.logTag,
url,
isDirectoryError);
} else if ([isDirectory boolValue]) {
DDLogInfo(@"%@ User picked directory at url: %@", self.logTag, url);
dispatch_async(dispatch_get_main_queue(), ^{
[OWSAlerts
showAlertWithTitle:
NSLocalizedString(@"ATTACHMENT_PICKER_DOCUMENTS_PICKED_DIRECTORY_FAILED_ALERT_TITLE",
@"Alert title when picking a document fails because user picked a directory/bundle")
message:
NSLocalizedString(@"ATTACHMENT_PICKER_DOCUMENTS_PICKED_DIRECTORY_FAILED_ALERT_BODY",
@"Alert body when picking a document fails because user picked a directory/bundle")];
});
return;
}
NSString *filename = url.lastPathComponent;
if (!filename) {
OWSFail(@"%@ Unable to determine filename from url: %@", self.logTag, url);
filename = NSLocalizedString(
@"ATTACHMENT_DEFAULT_FILENAME", @"Generic filename for an attachment with no known name");
}
OWSAssert(type);
OWSAssert(filename);
DataSource *_Nullable dataSource = [DataSourcePath dataSourceWithURL:url];
if (!dataSource) {
OWSFail(@"%@ attachment data was unexpectedly empty for picked document url: %@", self.logTag, url);
dispatch_async(dispatch_get_main_queue(), ^{
[OWSAlerts showAlertWithTitle:NSLocalizedString(@"ATTACHMENT_PICKER_DOCUMENTS_FAILED_ALERT_TITLE",
@"Alert title when picking a document fails for an unknown reason")];
});
return;
}
[dataSource setSourceFilename:filename];
// Although we want to be able to send higher quality attachments throught the document picker
// it's more imporant that we ensure the sent format is one all clients can accept (e.g. *not* quicktime .mov)
if ([SignalAttachment isInvalidVideoWithDataSource:dataSource dataUTI:type]) {
[self sendQualityAdjustedAttachmentForVideo:url filename:filename skipApprovalDialog:NO];
return;
}
// "Document picker" attachments _SHOULD NOT_ be resized, if possible.
SignalAttachment *attachment =
[SignalAttachment attachmentWithDataSource:dataSource dataUTI:type imageQuality:TSImageQualityOriginal];
[self tryToSendAttachmentIfApproved:attachment];
}
#pragma mark - UIImagePickerController
/*
* Presenting UIImagePickerController
*/
- (void)takePictureOrVideo
{
[self ows_askForCameraPermissions:^(BOOL granted) {
if (!granted) {
DDLogWarn(@"%@ camera permission denied.", self.logTag);
return;
}
UIImagePickerController *picker = [UIImagePickerController new];
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.mediaTypes = @[ (__bridge NSString *)kUTTypeImage, (__bridge NSString *)kUTTypeMovie ];
picker.allowsEditing = NO;
picker.delegate = self;
[self dismissKeyBoard];
[self presentViewController:picker animated:YES completion:[UIUtil modalCompletionBlock]];
}];
}
- (void)chooseFromLibraryAsDocument
{
OWSAssertIsOnMainThread();
[self chooseFromLibraryAsDocument:YES];
}
- (void)chooseFromLibraryAsMedia
{
OWSAssertIsOnMainThread();
[self chooseFromLibraryAsDocument:NO];
}
- (void)chooseFromLibraryAsDocument:(BOOL)shouldTreatAsDocument
{
OWSAssertIsOnMainThread();
self.isPickingMediaAsDocument = shouldTreatAsDocument;
[self ows_askForMediaLibraryPermissions:^(BOOL granted) {
if (!granted) {
DDLogWarn(@"%@ Media Library permission denied.", self.logTag);
return;
}
UIImagePickerController *picker = [UIImagePickerController new];
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
picker.delegate = self;
picker.mediaTypes = @[ (__bridge NSString *)kUTTypeImage, (__bridge NSString *)kUTTypeMovie ];
[self dismissKeyBoard];
[self presentViewController:picker animated:YES completion:[UIUtil modalCompletionBlock]];
}];
}
/*
* Dismissing UIImagePickerController
*/
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[UIUtil modalCompletionBlock]();
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void)resetFrame
{
// fixes bug on frame being off after this selection
CGRect frame = [UIScreen mainScreen].applicationFrame;
self.view.frame = frame;
}
/*
* Fetching data from UIImagePickerController
*/
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary<NSString *, id> *)info
{
[UIUtil modalCompletionBlock]();
[self resetFrame];
NSURL *referenceURL = [info valueForKey:UIImagePickerControllerReferenceURL];
if (!referenceURL) {
DDLogVerbose(@"Could not retrieve reference URL for picked asset");
[self imagePickerController:picker didFinishPickingMediaWithInfo:info filename:nil];
return;
}
ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *imageAsset) {
ALAssetRepresentation *imageRep = [imageAsset defaultRepresentation];
NSString *filename = [imageRep filename];
[self imagePickerController:picker didFinishPickingMediaWithInfo:info filename:filename];
};
ALAssetsLibrary *assetslibrary = [[ALAssetsLibrary alloc] init];
[assetslibrary assetForURL:referenceURL
resultBlock:resultblock
failureBlock:^(NSError *error) {
OWSFail(@"Error retrieving filename for asset: %@", error);
}];
}
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary<NSString *, id> *)info
filename:(NSString *_Nullable)filename
{
OWSAssertIsOnMainThread();
void (^failedToPickAttachment)(NSError *error) = ^void(NSError *error) {
DDLogError(@"failed to pick attachment with error: %@", error);
};
NSString *mediaType = info[UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:(__bridge NSString *)kUTTypeMovie]) {
// Video picked from library or captured with camera
NSURL *videoURL = info[UIImagePickerControllerMediaURL];
[self dismissViewControllerAnimated:YES
completion:^{
[self sendQualityAdjustedAttachmentForVideo:videoURL
filename:filename
skipApprovalDialog:NO];
}];
} else if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) {
// Static Image captured from camera
UIImage *imageFromCamera = [info[UIImagePickerControllerOriginalImage] normalizedImage];
[self dismissViewControllerAnimated:YES
completion:^{
OWSAssertIsOnMainThread();
if (imageFromCamera) {
// "Camera" attachments _SHOULD_ be resized, if possible.
SignalAttachment *attachment =
[SignalAttachment imageAttachmentWithImage:imageFromCamera
dataUTI:(NSString *)kUTTypeJPEG
filename:filename
imageQuality:TSImageQualityCompact];
if (!attachment || [attachment hasError]) {
DDLogWarn(@"%@ %s Invalid attachment: %@.",
self.logTag,
__PRETTY_FUNCTION__,
attachment ? [attachment errorName] : @"Missing data");
[self showErrorAlertForAttachment:attachment];
failedToPickAttachment(nil);
} else {
[self tryToSendAttachmentIfApproved:attachment skipApprovalDialog:NO];
}
} else {
failedToPickAttachment(nil);
}
}];
} else {
// Non-Video image picked from library
// To avoid re-encoding GIF and PNG's as JPEG we have to get the raw data of
// the selected item vs. using the UIImagePickerControllerOriginalImage
NSURL *assetURL = info[UIImagePickerControllerReferenceURL];
PHAsset *asset = [[PHAsset fetchAssetsWithALAssetURLs:@[ assetURL ] options:nil] lastObject];
if (!asset) {
return failedToPickAttachment(nil);
}
// Images chosen from the "attach document" UI should be sent as originals;
// images chosen from the "attach media" UI should be resized to "medium" size;
TSImageQuality imageQuality = (self.isPickingMediaAsDocument ? TSImageQualityOriginal : TSImageQualityMedium);
PHImageRequestOptions *options = [[PHImageRequestOptions alloc] init];
options.synchronous = YES; // We're only fetching one asset.
options.networkAccessAllowed = YES; // iCloud OK
options.deliveryMode = PHImageRequestOptionsDeliveryModeHighQualityFormat; // Don't need quick/dirty version
[[PHImageManager defaultManager]
requestImageDataForAsset:asset
options:options
resultHandler:^(NSData *_Nullable imageData,
NSString *_Nullable dataUTI,
UIImageOrientation orientation,
NSDictionary *_Nullable assetInfo) {
NSError *assetFetchingError = assetInfo[PHImageErrorKey];
if (assetFetchingError || !imageData) {
return failedToPickAttachment(assetFetchingError);
}
OWSAssertIsOnMainThread();
DataSource *_Nullable dataSource =
[DataSourceValue dataSourceWithData:imageData utiType:dataUTI];
[dataSource setSourceFilename:filename];
SignalAttachment *attachment = [SignalAttachment attachmentWithDataSource:dataSource
dataUTI:dataUTI
imageQuality:imageQuality];
[self dismissViewControllerAnimated:YES
completion:^{
OWSAssertIsOnMainThread();
if (!attachment || [attachment hasError]) {
DDLogWarn(@"%@ %s Invalid attachment: %@.",
self.logTag,
__PRETTY_FUNCTION__,
attachment ? [attachment errorName] : @"Missing data");
[self showErrorAlertForAttachment:attachment];
failedToPickAttachment(nil);
} else {
[self tryToSendAttachmentIfApproved:attachment];
}
}];
}];
}
}
- (void)sendMessageAttachment:(SignalAttachment *)attachment
{
OWSAssertIsOnMainThread();
// TODO: Should we assume non-nil or should we check for non-nil?
OWSAssert(attachment != nil);
OWSAssert(![attachment hasError]);
OWSAssert([attachment mimeType].length > 0);
DDLogVerbose(@"Sending attachment. Size in bytes: %lu, contentType: %@",
(unsigned long)[attachment dataLength],
[attachment mimeType]);
BOOL didAddToProfileWhitelist = [ThreadUtil addThreadToProfileWhitelistIfEmptyContactThread:self.thread];
TSOutgoingMessage *message = [ThreadUtil sendMessageWithAttachment:attachment
inThread:self.thread
quotedReplyModel:self.inputToolbar.quotedReply
messageSender:self.messageSender
completion:nil];
[self messageWasSent:message];
if (didAddToProfileWhitelist) {
[self ensureDynamicInteractions];
}
}
- (void)sendContactShare:(ContactShareViewModel *)contactShare
{
OWSAssertIsOnMainThread();
OWSAssert(contactShare);
DDLogVerbose(@"%@ Sending contact share.", self.logTag);
BOOL didAddToProfileWhitelist = [ThreadUtil addThreadToProfileWhitelistIfEmptyContactThread:self.thread];
[self.editingDatabaseConnection asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull transaction) {
if (contactShare.avatarImage) {
[contactShare.dbRecord saveAvatarImage:contactShare.avatarImage transaction:transaction];
}
}
completionBlock:^{
TSOutgoingMessage *message = [ThreadUtil sendMessageWithContactShare:contactShare.dbRecord
inThread:self.thread
messageSender:self.messageSender
completion:nil];
[self messageWasSent:message];
if (didAddToProfileWhitelist) {
[self ensureDynamicInteractions];
}
}];
}
- (NSURL *)videoTempFolder
{
NSString *temporaryDirectory = NSTemporaryDirectory();
NSString *videoDirPath = [temporaryDirectory stringByAppendingPathComponent:@"videos"];
[OWSFileSystem ensureDirectoryExists:videoDirPath];
return [NSURL fileURLWithPath:videoDirPath];
}
- (void)sendQualityAdjustedAttachmentForVideo:(NSURL *)movieURL
filename:(NSString *)filename
skipApprovalDialog:(BOOL)skipApprovalDialog
{
OWSAssertIsOnMainThread();
[ModalActivityIndicatorViewController
presentFromViewController:self
canCancel:YES
backgroundBlock:^(ModalActivityIndicatorViewController *modalActivityIndicator) {
DataSource *dataSource = [DataSourcePath dataSourceWithURL:movieURL];
dataSource.sourceFilename = filename;
VideoCompressionResult *compressionResult =
[SignalAttachment compressVideoAsMp4WithDataSource:dataSource
dataUTI:(NSString *)kUTTypeMPEG4];
[compressionResult.attachmentPromise retainUntilComplete];
compressionResult.attachmentPromise.then(^(SignalAttachment *attachment) {
OWSAssertIsOnMainThread();
OWSAssert([attachment isKindOfClass:[SignalAttachment class]]);
if (modalActivityIndicator.wasCancelled) {
return;
}
[modalActivityIndicator dismissWithCompletion:^{
if (!attachment || [attachment hasError]) {
DDLogError(@"%@ %s Invalid attachment: %@.",
self.logTag,
__PRETTY_FUNCTION__,
attachment ? [attachment errorName] : @"Missing data");
[self showErrorAlertForAttachment:attachment];
} else {
[self tryToSendAttachmentIfApproved:attachment skipApprovalDialog:skipApprovalDialog];
}
}];
});
}];
}
#pragma mark - Storage access
- (YapDatabaseConnection *)uiDatabaseConnection
{
NSAssert([NSThread isMainThread], @"Must access uiDatabaseConnection on main thread!");
if (!_uiDatabaseConnection) {
_uiDatabaseConnection = [self.primaryStorage newDatabaseConnection];
// Increase object cache limit. Default is 250.
_uiDatabaseConnection.objectCacheLimit = 500;
[_uiDatabaseConnection beginLongLivedReadTransaction];
}
return _uiDatabaseConnection;
}
- (YapDatabaseConnection *)editingDatabaseConnection
{
if (!_editingDatabaseConnection) {
_editingDatabaseConnection = [self.primaryStorage newDatabaseConnection];
}
return _editingDatabaseConnection;
}
- (void)yapDatabaseModifiedExternally:(NSNotification *)notification
{
OWSAssertIsOnMainThread();
DDLogVerbose(@"%@ %s", self.logTag, __PRETTY_FUNCTION__);
if (self.shouldObserveDBModifications) {
// External database modifications can't be converted into incremental updates,
// so rebuild everything. This is expensive and usually isn't necessary, but
// there's no alternative.
//
// We don't need to do this if we're not observing db modifications since we'll
// do it when we resume.
[self resetMappings];
}
}
- (void)yapDatabaseModified:(NSNotification *)notification
{
OWSAssertIsOnMainThread();
// Currently, we update thread and message state every time
// the database is modified. That doesn't seem optimal, but
// in practice it's efficient enough.
if (!self.shouldObserveDBModifications) {
return;
}
DDLogVerbose(@"%@ %s", self.logTag, __PRETTY_FUNCTION__);
// HACK to work around radar #28167779
// "UICollectionView performBatchUpdates can trigger a crash if the collection view is flagged for layout"
// more: https://github.com/PSPDFKit-labs/radar.apple.com/tree/master/28167779%20-%20CollectionViewBatchingIssue
// This was our #2 crash, and much exacerbated by the refactoring somewhere between 2.6.2.0-2.6.3.8
//
// NOTE: It's critical we do this before beginLongLivedReadTransaction.
// We want to relayout our contents using the old message mappings and
// view items before they are updated.
[self.collectionView layoutIfNeeded];
// ENDHACK to work around radar #28167779
// We need to `beginLongLivedReadTransaction` before we update our
// models in order to jump to the most recent commit.
NSArray *notifications = [self.uiDatabaseConnection beginLongLivedReadTransaction];
[self updateBackButtonUnreadCount];
[self updateNavigationBarSubtitleLabel];
if (self.isGroupConversation) {
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
TSGroupThread *gThread = (TSGroupThread *)self.thread;
if (gThread.groupModel) {
TSGroupThread *_Nullable updatedThread =
[TSGroupThread threadWithGroupId:gThread.groupModel.groupId transaction:transaction];
if (updatedThread) {
self.thread = updatedThread;
} else {
OWSFail(@"%@ Could not reload thread.", self.logTag);
}
}
}];
[self updateNavigationTitle];
}
[self updateDisappearingMessagesConfiguration];
if (![[self.uiDatabaseConnection ext:TSMessageDatabaseViewExtensionName] hasChangesForGroup:self.thread.uniqueId
inNotifications:notifications]) {
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
[self.messageMappings updateWithTransaction:transaction];
}];
return;
}
NSArray<YapDatabaseViewSectionChange *> *sectionChanges = nil;
NSArray<YapDatabaseViewRowChange *> *rowChanges = nil;
[[self.uiDatabaseConnection ext:TSMessageDatabaseViewExtensionName] getSectionChanges:&sectionChanges
rowChanges:&rowChanges
forNotifications:notifications
withMappings:self.messageMappings];
if ([sectionChanges count] == 0 && [rowChanges count] == 0) {
// YapDatabase will ignore insertions within the message mapping's
// range that are not within the current mapping's contents. We
// may need to extend the mapping's contents to reflect the current
// range.
[self updateMessageMappingRangeOptions];
// Calling resetContentAndLayout is a bit expensive.
// Since by definition this won't affect any cells in the previous
// range, it should be sufficient to call invalidateLayout.
//
// TODO: Investigate whether we can just call invalidateLayout.
[self resetContentAndLayout];
return;
}
// We need to reload any modified interactions _before_ we call
// reloadViewItems.
BOOL hasDeletions = NO;
BOOL hasMalformedRowChange = NO;
for (YapDatabaseViewRowChange *rowChange in rowChanges) {
switch (rowChange.type) {
case YapDatabaseViewChangeUpdate: {
YapCollectionKey *collectionKey = rowChange.collectionKey;
if (collectionKey.key) {
ConversationViewItem *viewItem = self.viewItemCache[collectionKey.key];
[self reloadInteractionForViewItem:viewItem];
} else {
hasMalformedRowChange = YES;
}
break;
}
case YapDatabaseViewChangeDelete: {
// Discard cached view items after deletes.
YapCollectionKey *collectionKey = rowChange.collectionKey;
if (collectionKey.key) {
[self.viewItemCache removeObjectForKey:collectionKey.key];
} else {
hasMalformedRowChange = YES;
}
hasDeletions = YES;
break;
}
default:
break;
}
if (hasMalformedRowChange) {
break;
}
}
if (hasMalformedRowChange) {
// These errors seems to be very rare; they can only be reproduced
// using the more extreme actions in the debug UI.
DDLogError(@"%@ hasMalformedRowChange", self.logTag);
[self.collectionView reloadData];
[self updateLastVisibleTimestamp];
[self cleanUpUnreadIndicatorIfNecessary];
return;
}
NSUInteger oldViewItemCount = self.viewItems.count;
NSMutableSet<NSNumber *> *rowsThatChangedSize = [[self reloadViewItems] mutableCopy];
BOOL wasAtBottom = [self isScrolledToBottom];
// We want sending messages to feel snappy. So, if the only
// update is a new outgoing message AND we're already scrolled to
// the bottom of the conversation, skip the scroll animation.
__block BOOL shouldAnimateScrollToBottom = !wasAtBottom;
// We want to scroll to the bottom if the user:
//
// a) already was at the bottom of the conversation.
// b) is inserting new interactions.
__block BOOL scrollToBottom = wasAtBottom;
void (^batchUpdates)(void) = ^{
for (YapDatabaseViewRowChange *rowChange in rowChanges) {
switch (rowChange.type) {
case YapDatabaseViewChangeDelete: {
DDLogVerbose(@"YapDatabaseViewChangeDelete: %@, %@, %zd",
rowChange.collectionKey,
rowChange.indexPath,
rowChange.finalIndex);
[self.collectionView deleteItemsAtIndexPaths:@[ rowChange.indexPath ]];
YapCollectionKey *collectionKey = rowChange.collectionKey;
OWSAssert(collectionKey.key.length > 0);
break;
}
case YapDatabaseViewChangeInsert: {
DDLogVerbose(@"YapDatabaseViewChangeInsert: %@, %@, %zd",
rowChange.collectionKey,
rowChange.newIndexPath,
rowChange.finalIndex);
[self.collectionView insertItemsAtIndexPaths:@[ rowChange.newIndexPath ]];
// We don't want to reload a row that we just inserted.
[rowsThatChangedSize removeObject:@(rowChange.originalIndex)];
ConversationViewItem *_Nullable viewItem = [self viewItemForIndex:(NSInteger)rowChange.finalIndex];
if ([viewItem.interaction isKindOfClass:[TSOutgoingMessage class]]) {
TSOutgoingMessage *outgoingMessage = (TSOutgoingMessage *)viewItem.interaction;
if (!outgoingMessage.isFromLinkedDevice) {
scrollToBottom = YES;
shouldAnimateScrollToBottom = NO;
}
}
break;
}
case YapDatabaseViewChangeMove: {
DDLogVerbose(@"YapDatabaseViewChangeMove: %@, %@, %@, %zd",
rowChange.collectionKey,
rowChange.indexPath,
rowChange.newIndexPath,
rowChange.finalIndex);
[self.collectionView moveItemAtIndexPath:rowChange.indexPath toIndexPath:rowChange.newIndexPath];
// We don't want to reload a row that we just moved.
[rowsThatChangedSize removeObject:@(rowChange.originalIndex)];
break;
}
case YapDatabaseViewChangeUpdate: {
DDLogVerbose(@"YapDatabaseViewChangeUpdate: %@, %@, %zd",
rowChange.collectionKey,
rowChange.indexPath,
rowChange.finalIndex);
[self.collectionView reloadItemsAtIndexPaths:@[ rowChange.indexPath ]];
// We don't want to reload a row that we've already reloaded.
[rowsThatChangedSize removeObject:@(rowChange.originalIndex)];
break;
}
}
}
// The changes performed above may affect the size of neighboring cells,
// as they may affect which cells show "date" headers or "status" footers.
NSMutableArray<NSIndexPath *> *rowsToReload = [NSMutableArray new];
for (NSNumber *row in rowsThatChangedSize) {
DDLogVerbose(@"rowsToReload: %@", row);
[rowsToReload addObject:[NSIndexPath indexPathForRow:row.integerValue inSection:0]];
}
if (rowsToReload.count > 0) {
[self.collectionView reloadItemsAtIndexPaths:rowsToReload];
}
};
DDLogVerbose(@"self.viewItems.count: %zd -> %zd", oldViewItemCount, self.viewItems.count);
BOOL shouldAnimateUpdates = [self shouldAnimateRowUpdates:rowChanges oldViewItemCount:oldViewItemCount];
void (^batchUpdatesCompletion)(BOOL) = ^(BOOL finished) {
OWSAssertIsOnMainThread();
if (!finished) {
DDLogInfo(@"%@ performBatchUpdates did not finish", self.logTag);
}
[self updateLastVisibleTimestamp];
if (scrollToBottom) {
[self scrollToBottomAnimated:shouldAnimateScrollToBottom && shouldAnimateUpdates];
}
if (hasDeletions) {
[self cleanUpUnreadIndicatorIfNecessary];
}
};
if (shouldAnimateUpdates) {
[self.collectionView performBatchUpdates:batchUpdates completion:batchUpdatesCompletion];
} else {
[UIView performWithoutAnimation:^{
[self.collectionView performBatchUpdates:batchUpdates completion:batchUpdatesCompletion];
}];
}
}
- (BOOL)shouldAnimateRowUpdates:(NSArray<YapDatabaseViewRowChange *> *)rowChanges
oldViewItemCount:(NSUInteger)oldViewItemCount
{
OWSAssert(rowChanges);
// If user sends a new outgoing message, don't animate the change.
BOOL isOnlyInsertingNewOutgoingMessages = YES;
BOOL isOnlyUpdatingLastOutgoingMessage = YES;
NSNumber *_Nullable lastUpdateRow = nil;
NSNumber *_Nullable lastNonUpdateRow = nil;
for (YapDatabaseViewRowChange *rowChange in rowChanges) {
switch (rowChange.type) {
case YapDatabaseViewChangeDelete:
isOnlyInsertingNewOutgoingMessages = NO;
isOnlyUpdatingLastOutgoingMessage = NO;
if (!lastNonUpdateRow || lastNonUpdateRow.integerValue < rowChange.indexPath.row) {
lastNonUpdateRow = @(rowChange.indexPath.row);
}
break;
case YapDatabaseViewChangeInsert: {
isOnlyUpdatingLastOutgoingMessage = NO;
ConversationViewItem *_Nullable viewItem = [self viewItemForIndex:(NSInteger)rowChange.finalIndex];
if ([viewItem.interaction isKindOfClass:[TSOutgoingMessage class]]
&& rowChange.finalIndex >= oldViewItemCount) {
continue;
}
if (!lastNonUpdateRow || lastNonUpdateRow.unsignedIntegerValue < rowChange.finalIndex) {
lastNonUpdateRow = @(rowChange.finalIndex);
}
}
case YapDatabaseViewChangeMove:
isOnlyInsertingNewOutgoingMessages = NO;
isOnlyUpdatingLastOutgoingMessage = NO;
if (!lastNonUpdateRow || lastNonUpdateRow.integerValue < rowChange.indexPath.row) {
lastNonUpdateRow = @(rowChange.indexPath.row);
}
if (!lastNonUpdateRow || lastNonUpdateRow.unsignedIntegerValue < rowChange.finalIndex) {
lastNonUpdateRow = @(rowChange.finalIndex);
}
break;
case YapDatabaseViewChangeUpdate: {
isOnlyInsertingNewOutgoingMessages = NO;
ConversationViewItem *_Nullable viewItem = [self viewItemForIndex:(NSInteger)rowChange.finalIndex];
if (![viewItem.interaction isKindOfClass:[TSOutgoingMessage class]]
|| rowChange.indexPath.row != (NSInteger)(oldViewItemCount - 1)) {
isOnlyUpdatingLastOutgoingMessage = NO;
}
if (!lastUpdateRow || lastUpdateRow.integerValue < rowChange.indexPath.row) {
lastUpdateRow = @(rowChange.indexPath.row);
}
break;
}
}
}
BOOL shouldAnimateRowUpdates = !(isOnlyInsertingNewOutgoingMessages || isOnlyUpdatingLastOutgoingMessage);
return shouldAnimateRowUpdates;
}
- (BOOL)isScrolledToBottom
{
CGFloat contentHeight = self.safeContentHeight;
// This is a bit subtle.
//
// The _wrong_ way to determine if we're scrolled to the bottom is to
// measure whether the collection view's content is "near" the bottom edge
// of the collection view. This is wrong because the collection view
// might not have enough content to fill the collection view's bounds
// _under certain conditions_ (e.g. with the keyboard dismissed).
//
// What we're really interested in is something a bit more subtle:
// "Is the scroll view scrolled down as far as it can, "at rest".
//
// To determine that, we find the appropriate "content offset y" if
// the scroll view were scrolled down as far as possible. IFF the
// actual "content offset y" is "near" that value, we return YES.
const CGFloat kIsAtBottomTolerancePts = 5;
// Note the usage of MAX() to handle the case where there isn't enough
// content to fill the collection view at its current size.
CGFloat contentOffsetYBottom
= MAX(0.f, contentHeight + self.collectionView.contentInset.bottom - self.collectionView.bounds.size.height);
CGFloat distanceFromBottom = contentOffsetYBottom - self.collectionView.contentOffset.y;
BOOL isScrolledToBottom = distanceFromBottom <= kIsAtBottomTolerancePts;
return isScrolledToBottom;
}
#pragma mark - Audio
- (void)requestRecordingVoiceMemo
{
OWSAssertIsOnMainThread();
NSUUID *voiceMessageUUID = [NSUUID UUID];
self.voiceMessageUUID = voiceMessageUUID;
__weak typeof(self) weakSelf = self;
[self ows_askForMicrophonePermissions:^(BOOL granted) {
__strong typeof(self) strongSelf = weakSelf;
if (!strongSelf) {
return;
}
if (strongSelf.voiceMessageUUID != voiceMessageUUID) {
// This voice message recording has been cancelled
// before recording could begin.
return;
}
if (granted) {
[strongSelf startRecordingVoiceMemo];
} else {
DDLogInfo(@"%@ we do not have recording permission.", self.logTag);
[strongSelf cancelVoiceMemo];
[OWSAlerts showNoMicrophonePermissionAlert];
}
}];
}
- (void)startRecordingVoiceMemo
{
OWSAssertIsOnMainThread();
DDLogInfo(@"startRecordingVoiceMemo");
// Cancel any ongoing audio playback.
[self.audioAttachmentPlayer stop];
self.audioAttachmentPlayer = nil;
NSString *temporaryDirectory = NSTemporaryDirectory();
NSString *filename = [NSString stringWithFormat:@"%lld.m4a", [NSDate ows_millisecondTimeStamp]];
NSString *filepath = [temporaryDirectory stringByAppendingPathComponent:filename];
NSURL *fileURL = [NSURL fileURLWithPath:filepath];
// Setup audio session
BOOL configuredAudio = [OWSAudioSession.shared startRecordingAudioActivity:self.voiceNoteAudioActivity];
if (!configuredAudio) {
OWSFail(@"%@ Couldn't configure audio session", self.logTag);
[self cancelVoiceMemo];
return;
}
NSError *error;
// Initiate and prepare the recorder
self.audioRecorder = [[AVAudioRecorder alloc] initWithURL:fileURL
settings:@{
AVFormatIDKey : @(kAudioFormatMPEG4AAC),
AVSampleRateKey : @(44100),
AVNumberOfChannelsKey : @(2),
AVEncoderBitRateKey : @(128 * 1024),
}
error:&error];
if (error) {
OWSFail(@"%@ Couldn't create audioRecorder: %@", self.logTag, error);
[self cancelVoiceMemo];
return;
}
self.audioRecorder.meteringEnabled = YES;
if (![self.audioRecorder prepareToRecord]) {
OWSFail(@"%@ audioRecorder couldn't prepareToRecord.", self.logTag);
[self cancelVoiceMemo];
return;
}
if (![self.audioRecorder record]) {
OWSFail(@"%@ audioRecorder couldn't record.", self.logTag);
[self cancelVoiceMemo];
return;
}
}
- (void)endRecordingVoiceMemo
{
OWSAssertIsOnMainThread();
DDLogInfo(@"endRecordingVoiceMemo");
self.voiceMessageUUID = nil;
if (!self.audioRecorder) {
// No voice message recording is in progress.
// We may be cancelling before the recording could begin.
DDLogError(@"%@ Missing audioRecorder", self.logTag);
return;
}
NSTimeInterval durationSeconds = self.audioRecorder.currentTime;
[self stopRecording];
const NSTimeInterval kMinimumRecordingTimeSeconds = 1.f;
if (durationSeconds < kMinimumRecordingTimeSeconds) {
DDLogInfo(@"Discarding voice message; too short.");
self.audioRecorder = nil;
[self dismissKeyBoard];
[OWSAlerts
showAlertWithTitle:
NSLocalizedString(@"VOICE_MESSAGE_TOO_SHORT_ALERT_TITLE",
@"Title for the alert indicating the 'voice message' needs to be held to be held down to record.")
message:NSLocalizedString(@"VOICE_MESSAGE_TOO_SHORT_ALERT_MESSAGE",
@"Message for the alert indicating the 'voice message' needs to be held to be held "
@"down to record.")];
return;
}
DataSource *_Nullable dataSource = [DataSourcePath dataSourceWithURL:self.audioRecorder.url];
self.audioRecorder = nil;
if (!dataSource) {
OWSFail(@"%@ Couldn't load audioRecorder data", self.logTag);
self.audioRecorder = nil;
return;
}
NSString *filename = [NSLocalizedString(@"VOICE_MESSAGE_FILE_NAME", @"Filename for voice messages.")
stringByAppendingPathExtension:@"m4a"];
[dataSource setSourceFilename:filename];
// Remove temporary file when complete.
[dataSource setShouldDeleteOnDeallocation];
SignalAttachment *attachment =
[SignalAttachment voiceMessageAttachmentWithDataSource:dataSource dataUTI:(NSString *)kUTTypeMPEG4Audio];
DDLogVerbose(@"%@ voice memo duration: %f, file size: %zd", self.logTag, durationSeconds, [dataSource dataLength]);
if (!attachment || [attachment hasError]) {
DDLogWarn(@"%@ %s Invalid attachment: %@.",
self.logTag,
__PRETTY_FUNCTION__,
attachment ? [attachment errorName] : @"Missing data");
[self showErrorAlertForAttachment:attachment];
} else {
[self tryToSendAttachmentIfApproved:attachment skipApprovalDialog:YES];
}
}
- (void)stopRecording
{
[self.audioRecorder stop];
[OWSAudioSession.shared endAudioActivity:self.voiceNoteAudioActivity];
}
- (void)cancelRecordingVoiceMemo
{
OWSAssertIsOnMainThread();
DDLogDebug(@"cancelRecordingVoiceMemo");
[self stopRecording];
self.audioRecorder = nil;
self.voiceMessageUUID = nil;
}
- (void)setAudioRecorder:(nullable AVAudioRecorder *)audioRecorder
{
// Prevent device from sleeping while recording a voice message.
if (audioRecorder) {
[DeviceSleepManager.sharedInstance addBlockWithBlockObject:audioRecorder];
} else if (_audioRecorder) {
[DeviceSleepManager.sharedInstance removeBlockWithBlockObject:_audioRecorder];
}
_audioRecorder = audioRecorder;
}
#pragma mark Accessory View
- (void)attachmentButtonPressed
{
[self dismissKeyBoard];
__weak ConversationViewController *weakSelf = self;
if ([self isBlockedContactConversation]) {
[self showUnblockContactUI:^(BOOL isBlocked) {
if (!isBlocked) {
[weakSelf attachmentButtonPressed];
}
}];
return;
}
BOOL didShowSNAlert =
[self showSafetyNumberConfirmationIfNecessaryWithConfirmationText:
NSLocalizedString(@"CONFIRMATION_TITLE", @"Generic button text to proceed with an action")
completion:^(BOOL didConfirmIdentity) {
if (didConfirmIdentity) {
[weakSelf attachmentButtonPressed];
}
}];
if (didShowSNAlert) {
return;
}
UIAlertController *actionSheetController =
[UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet];
[actionSheetController addAction:[OWSAlerts cancelAction]];
UIAlertAction *takeMediaAction = [UIAlertAction
actionWithTitle:NSLocalizedString(@"MEDIA_FROM_CAMERA_BUTTON", @"media picker option to take photo or video")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
[self takePictureOrVideo];
}];
UIImage *takeMediaImage = [UIImage imageNamed:@"actionsheet_camera_black"];
OWSAssert(takeMediaImage);
[takeMediaAction setValue:takeMediaImage forKey:@"image"];
[actionSheetController addAction:takeMediaAction];
UIAlertAction *chooseMediaAction = [UIAlertAction
actionWithTitle:NSLocalizedString(@"MEDIA_FROM_LIBRARY_BUTTON", @"media picker option to choose from library")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
[self chooseFromLibraryAsMedia];
}];
UIImage *chooseMediaImage = [UIImage imageNamed:@"actionsheet_camera_roll_black"];
OWSAssert(chooseMediaImage);
[chooseMediaAction setValue:chooseMediaImage forKey:@"image"];
[actionSheetController addAction:chooseMediaAction];
UIAlertAction *gifAction = [UIAlertAction
actionWithTitle:NSLocalizedString(@"SELECT_GIF_BUTTON", @"Label for 'select GIF to attach' action sheet button")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
[self showGifPicker];
}];
UIImage *gifImage = [UIImage imageNamed:@"actionsheet_gif_black"];
OWSAssert(gifImage);
[gifAction setValue:gifImage forKey:@"image"];
[actionSheetController addAction:gifAction];
UIAlertAction *chooseDocumentAction =
[UIAlertAction actionWithTitle:NSLocalizedString(@"MEDIA_FROM_DOCUMENT_PICKER_BUTTON",
@"action sheet button title when choosing attachment type")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
[self showAttachmentDocumentPickerMenu];
}];
UIImage *chooseDocumentImage = [UIImage imageNamed:@"actionsheet_document_black"];
OWSAssert(chooseDocumentImage);
[chooseDocumentAction setValue:chooseDocumentImage forKey:@"image"];
[actionSheetController addAction:chooseDocumentAction];
if (kIsSendingContactSharesEnabled) {
UIAlertAction *chooseContactAction =
[UIAlertAction actionWithTitle:NSLocalizedString(@"ATTACHMENT_MENU_CONTACT_BUTTON",
@"attachment menu option to send contact")
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *_Nonnull action) {
[self chooseContactForSending];
}];
UIImage *chooseContactImage = [UIImage imageNamed:@"actionsheet_contact"];
OWSAssert(takeMediaImage);
[chooseContactAction setValue:chooseContactImage forKey:@"image"];
[actionSheetController addAction:chooseContactAction];
}
[self dismissKeyBoard];
[self presentViewController:actionSheetController animated:true completion:nil];
}
- (nullable NSIndexPath *)lastVisibleIndexPath
{
NSIndexPath *_Nullable lastVisibleIndexPath = nil;
for (NSIndexPath *indexPath in [self.collectionView indexPathsForVisibleItems]) {
if (!lastVisibleIndexPath || indexPath.row > lastVisibleIndexPath.row) {
lastVisibleIndexPath = indexPath;
}
}
if (lastVisibleIndexPath && lastVisibleIndexPath.row >= self.viewItems.count) {
return (self.viewItems.count > 0 ? [NSIndexPath indexPathForRow:self.viewItems.count - 1 inSection:0] : nil);
}
return lastVisibleIndexPath;
}
- (nullable ConversationViewItem *)lastVisibleViewItem
{
NSIndexPath *_Nullable lastVisibleIndexPath = [self lastVisibleIndexPath];
if (!lastVisibleIndexPath) {
return nil;
}
return [self viewItemForIndex:lastVisibleIndexPath.row];
}
// In the case where we explicitly scroll to bottom, we want to synchronously
// update the UI to reflect that, since the "mark as read" logic is asynchronous
// and won't update the UI state immediately.
- (void)didScrollToBottom
{
ConversationViewItem *_Nullable lastVisibleViewItem = [self.viewItems lastObject];
if (lastVisibleViewItem) {
uint64_t lastVisibleTimestamp = lastVisibleViewItem.interaction.timestampForSorting;
self.lastVisibleTimestamp = MAX(self.lastVisibleTimestamp, lastVisibleTimestamp);
}
self.scrollDownButton.hidden = YES;
self.hasUnreadMessages = NO;
}
- (void)updateLastVisibleTimestamp
{
ConversationViewItem *_Nullable lastVisibleViewItem = [self lastVisibleViewItem];
if (lastVisibleViewItem) {
uint64_t lastVisibleTimestamp = lastVisibleViewItem.interaction.timestampForSorting;
self.lastVisibleTimestamp = MAX(self.lastVisibleTimestamp, lastVisibleTimestamp);
}
[self ensureScrollDownButton];
__block NSUInteger numberOfUnreadMessages;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
numberOfUnreadMessages =
[[transaction ext:TSUnreadDatabaseViewExtensionName] numberOfItemsInGroup:self.thread.uniqueId];
}];
self.hasUnreadMessages = numberOfUnreadMessages > 0;
}
- (void)cleanUpUnreadIndicatorIfNecessary
{
BOOL hasUnreadIndicator = self.dynamicInteractions.unreadIndicatorPosition != nil;
if (!hasUnreadIndicator) {
return;
}
__block BOOL hasUnseenInteractions = NO;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
hasUnseenInteractions =
[[transaction ext:TSUnreadDatabaseViewExtensionName] numberOfItemsInGroup:self.thread.uniqueId] > 0;
}];
if (hasUnseenInteractions) {
return;
}
// If the last unread message was deleted (manually or due to disappearing messages)
// we may need to clean up an obsolete unread indicator.
[self ensureDynamicInteractions];
}
- (void)updateLastVisibleTimestamp:(uint64_t)timestamp
{
OWSAssert(timestamp > 0);
self.lastVisibleTimestamp = MAX(self.lastVisibleTimestamp, timestamp);
[self ensureScrollDownButton];
}
- (void)markVisibleMessagesAsRead
{
[self updateLastVisibleTimestamp];
uint64_t lastVisibleTimestamp = self.lastVisibleTimestamp;
if (lastVisibleTimestamp == 0) {
// No visible messages yet. New Thread.
return;
}
[OWSReadReceiptManager.sharedManager markAsReadLocallyBeforeTimestamp:lastVisibleTimestamp thread:self.thread];
}
- (void)updateGroupModelTo:(TSGroupModel *)newGroupModel successCompletion:(void (^_Nullable)(void))successCompletion
{
__block TSGroupThread *groupThread;
__block TSOutgoingMessage *message;
[self.editingDatabaseConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
groupThread = [TSGroupThread getOrCreateThreadWithGroupModel:newGroupModel transaction:transaction];
NSString *updateGroupInfo =
[groupThread.groupModel getInfoStringAboutUpdateTo:newGroupModel contactsManager:self.contactsManager];
groupThread.groupModel = newGroupModel;
[groupThread saveWithTransaction:transaction];
message = [TSOutgoingMessage outgoingMessageInThread:groupThread groupMetaMessage:TSGroupMessageUpdate];
[message updateWithCustomMessage:updateGroupInfo transaction:transaction];
}];
if (newGroupModel.groupImage) {
NSData *data = UIImagePNGRepresentation(newGroupModel.groupImage);
DataSource *_Nullable dataSource = [DataSourceValue dataSourceWithData:data fileExtension:@"png"];
[self.messageSender enqueueAttachment:dataSource
contentType:OWSMimeTypeImagePng
sourceFilename:nil
inMessage:message
success:^{
DDLogDebug(@"%@ Successfully sent group update with avatar", self.logTag);
if (successCompletion) {
successCompletion();
}
}
failure:^(NSError *_Nonnull error) {
DDLogError(@"%@ Failed to send group avatar update with error: %@", self.logTag, error);
}];
} else {
[self.messageSender enqueueMessage:message
success:^{
DDLogDebug(@"%@ Successfully sent group update", self.logTag);
if (successCompletion) {
successCompletion();
}
}
failure:^(NSError *_Nonnull error) {
DDLogError(@"%@ Failed to send group update with error: %@", self.logTag, error);
}];
}
self.thread = groupThread;
}
- (void)popKeyBoard
{
[self.inputToolbar beginEditingTextMessage];
}
- (void)dismissKeyBoard
{
[self.inputToolbar endEditingTextMessage];
}
#pragma mark Drafts
- (void)loadDraftInCompose
{
OWSAssertIsOnMainThread();
__block NSString *draft;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
draft = [_thread currentDraftWithTransaction:transaction];
}];
[self.inputToolbar setMessageText:draft];
}
- (void)saveDraft
{
if (self.inputToolbar.hidden == NO) {
__block TSThread *thread = _thread;
__block NSString *currentDraft = [self.inputToolbar messageText];
[self.editingDatabaseConnection asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
[thread setDraft:currentDraft transaction:transaction];
}];
}
}
- (void)clearDraft
{
__block TSThread *thread = _thread;
[self.editingDatabaseConnection asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
[thread setDraft:@"" transaction:transaction];
}];
}
#pragma mark Unread Badge
- (void)updateBackButtonUnreadCount
{
OWSAssertIsOnMainThread();
self.backButtonUnreadCount = [OWSMessageUtils.sharedManager unreadMessagesCountExcept:self.thread];
}
- (void)setBackButtonUnreadCount:(NSUInteger)unreadCount
{
OWSAssertIsOnMainThread();
if (_backButtonUnreadCount == unreadCount) {
// No need to re-render same count.
return;
}
_backButtonUnreadCount = unreadCount;
OWSAssert(_backButtonUnreadCountView != nil);
_backButtonUnreadCountView.hidden = unreadCount <= 0;
OWSAssert(_backButtonUnreadCountLabel != nil);
// Max out the unread count at 99+.
const NSUInteger kMaxUnreadCount = 99;
_backButtonUnreadCountLabel.text = [OWSFormat formatInt:(int)MIN(kMaxUnreadCount, unreadCount)];
}
#pragma mark 3D Touch Preview Actions
- (NSArray<id<UIPreviewActionItem>> *)previewActionItems
{
return @[];
}
#pragma mark - ConversationHeaderViewDelegate
- (void)didTapConversationHeaderView:(ConversationHeaderView *)conversationHeaderView
{
[self showConversationSettings];
}
#ifdef USE_DEBUG_UI
- (void)navigationTitleLongPressed:(UIGestureRecognizer *)gestureRecognizer
{
if (gestureRecognizer.state == UIGestureRecognizerStateBegan) {
[DebugUITableViewController presentDebugUIForThread:self.thread fromViewController:self];
}
}
#endif
#pragma mark - ConversationInputTextViewDelegate
- (void)inputTextViewSendMessagePressed
{
[self sendButtonPressed];
}
- (void)didPasteAttachment:(SignalAttachment *_Nullable)attachment
{
DDLogError(@"%@ %s", self.logTag, __PRETTY_FUNCTION__);
[self tryToSendAttachmentIfApproved:attachment];
}
- (void)tryToSendAttachmentIfApproved:(SignalAttachment *_Nullable)attachment
{
[self tryToSendAttachmentIfApproved:attachment skipApprovalDialog:NO];
}
- (void)tryToSendAttachmentIfApproved:(SignalAttachment *_Nullable)attachment
skipApprovalDialog:(BOOL)skipApprovalDialog
{
DDLogError(@"%@ %s", self.logTag, __PRETTY_FUNCTION__);
DispatchMainThreadSafe(^{
__weak ConversationViewController *weakSelf = self;
if ([self isBlockedContactConversation]) {
[self showUnblockContactUI:^(BOOL isBlocked) {
if (!isBlocked) {
[weakSelf tryToSendAttachmentIfApproved:attachment];
}
}];
return;
}
BOOL didShowSNAlert = [self
showSafetyNumberConfirmationIfNecessaryWithConfirmationText:[SafetyNumberStrings confirmSendButton]
completion:^(BOOL didConfirmIdentity) {
if (didConfirmIdentity) {
[weakSelf
tryToSendAttachmentIfApproved:attachment];
}
}];
if (didShowSNAlert) {
return;
}
if (attachment == nil || [attachment hasError]) {
DDLogWarn(@"%@ %s Invalid attachment: %@.",
self.logTag,
__PRETTY_FUNCTION__,
attachment ? [attachment errorName] : @"Missing data");
[self showErrorAlertForAttachment:attachment];
} else if (skipApprovalDialog) {
[self sendMessageAttachment:attachment];
} else {
AttachmentApprovalViewController *approvalVC = [[AttachmentApprovalViewController alloc] initWithAttachment:attachment delegate:self];
[self presentViewController:approvalVC animated:YES completion:nil];
}
});
}
- (void)keyboardWillChangeFrame:(NSNotification *)notification
{
// `willChange` is the correct keyboard notifiation to observe when adjusting contentInset
// in lockstep with the keyboard presentation animation. `didChange` results in the contentInset
// not adjusting until after the keyboard is fully up.
DDLogVerbose(@"%@ %s", self.logTag, __PRETTY_FUNCTION__);
[self handleKeyboardNotification:notification];
}
- (void)handleKeyboardNotification:(NSNotification *)notification
{
OWSAssertIsOnMainThread();
NSDictionary *userInfo = [notification userInfo];
NSValue *_Nullable keyboardBeginFrameValue = userInfo[UIKeyboardFrameBeginUserInfoKey];
if (!keyboardBeginFrameValue) {
OWSFail(@"%@ Missing keyboard begin frame", self.logTag);
return;
}
NSValue *_Nullable keyboardEndFrameValue = userInfo[UIKeyboardFrameEndUserInfoKey];
if (!keyboardEndFrameValue) {
OWSFail(@"%@ Missing keyboard end frame", self.logTag);
return;
}
CGRect keyboardEndFrame = [keyboardEndFrameValue CGRectValue];
UIEdgeInsets oldInsets = self.collectionView.contentInset;
UIEdgeInsets newInsets = oldInsets;
// bottomLayoutGuide accounts for extra offset needed on iPhoneX
newInsets.bottom = keyboardEndFrame.size.height - self.bottomLayoutGuide.length;
BOOL wasScrolledToBottom = [self isScrolledToBottom];
void (^adjustInsets)(void) = ^(void) {
self.collectionView.contentInset = newInsets;
self.collectionView.scrollIndicatorInsets = newInsets;
// Note there is a bug in iOS11.2 which where switching to the emoji keyboard
// does not fire a UIKeyboardFrameWillChange notification. In that case, the scroll
// down button gets mostly obscured by the keyboard.
// RADAR: #36297652
self.scrollDownButtonButtomConstraint.constant = -1 * newInsets.bottom;
[self.scrollDownButton setNeedsLayout];
[self.scrollDownButton layoutIfNeeded];
// HACK: I've made the assumption that we are already in the context of an animation, in which case the
// above should be sufficient to smoothly move the scrollDown button in step with the keyboard presentation
// animation. Yet, setting the constraint doesn't animate the movement of the button - it "jumps" to it's final
// position. So here we manually lay out the scroll down button frame (seemingly redundantly), which allows it
// to be smoothly animated.
CGRect newButtonFrame = self.scrollDownButton.frame;
newButtonFrame.origin.y
= self.scrollDownButton.superview.height - (newInsets.bottom + self.scrollDownButton.height);
self.scrollDownButton.frame = newButtonFrame;
// Adjust content offset to prevent the presented keyboard from obscuring content.
if (wasScrolledToBottom) {
// If we were scrolled to the bottom, don't do any fancy math. Just stay at the bottom.
[self scrollToBottomAnimated:NO];
} else {
// If we were scrolled away from the bottom, shift the content in lockstep with the
// keyboard, up to the limits of the content bounds.
CGFloat insetChange = newInsets.bottom - oldInsets.bottom;
CGFloat oldYOffset = self.collectionView.contentOffset.y;
CGFloat newYOffset = CGFloatClamp(oldYOffset + insetChange, 0, self.safeContentHeight);
CGPoint newOffset = CGPointMake(0, newYOffset);
// If the user is dismissing the keyboard via interactive scrolling, any additional conset offset feels
// redundant, so we only adjust content offset when *presenting* the keyboard (i.e. when insetChange > 0).
if (insetChange > 0 && newYOffset > keyboardEndFrame.origin.y) {
[self.collectionView setContentOffset:newOffset animated:NO];
}
}
};
if (self.isViewCompletelyAppeared) {
adjustInsets();
} else {
// Even though we are scrolling without explicitly animating, the notification seems to occur within the context
// of a system animation, which is desirable when the view is visible, because the user sees the content rise
// in sync with the keyboard. However, when the view hasn't yet been presented, the animation conflicts and the
// result is that initial load causes the collection cells to visably "animate" to their final position once the
// view appears.
[UIView performWithoutAnimation:adjustInsets];
}
}
- (void)attachmentApproval:(AttachmentApprovalViewController *)attachmentApproval didApproveAttachment:(SignalAttachment * _Nonnull)attachment
{
[self sendMessageAttachment:attachment];
[self dismissViewControllerAnimated:YES completion:nil];
// We always want to scroll to the bottom of the conversation after the local user
// sends a message. Normally, this is taken care of in yapDatabaseModified:, but
// we don't listen to db modifications when this view isn't visible, i.e. when the
// attachment approval view is presented.
[self scrollToBottomAnimated:YES];
}
- (void)attachmentApproval:(AttachmentApprovalViewController *)attachmentApproval didCancelAttachment:(SignalAttachment * _Nonnull)attachment
{
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void)showErrorAlertForAttachment:(SignalAttachment *_Nullable)attachment
{
OWSAssert(attachment == nil || [attachment hasError]);
NSString *errorMessage
= (attachment ? [attachment localizedErrorDescription] : [SignalAttachment missingDataErrorMessage]);
DDLogError(@"%@ %s: %@", self.logTag, __PRETTY_FUNCTION__, errorMessage);
[OWSAlerts showAlertWithTitle:NSLocalizedString(
@"ATTACHMENT_ERROR_ALERT_TITLE", @"The title of the 'attachment error' alert.")
message:errorMessage];
}
- (CGFloat)safeContentHeight
{
// Don't use self.collectionView.contentSize.height as the collection view's
// content size might not be set yet.
//
// We can safely call prepareLayout to ensure the layout state is up-to-date
// since our layout uses a dirty flag internally to debounce redundant work.
[self.layout prepareLayout];
return [self.collectionView.collectionViewLayout collectionViewContentSize].height;
}
- (void)scrollToBottomAnimated:(BOOL)animated
{
OWSAssertIsOnMainThread();
if (self.isUserScrolling) {
return;
}
// Ensure the view is fully layed out before we try to scroll to the bottom, since
// we use the collectionView bounds to determine where the "bottom" is.
[self.view layoutIfNeeded];
CGFloat contentHeight = self.safeContentHeight;
CGFloat dstY
= MAX(0, contentHeight + self.collectionView.contentInset.bottom - self.collectionView.bounds.size.height);
[self.collectionView setContentOffset:CGPointMake(0, dstY) animated:NO];
[self didScrollToBottom];
}
#pragma mark - UIScrollViewDelegate
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
[self updateLastVisibleTimestamp];
[self autoLoadMoreIfNecessary];
}
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
self.userHasScrolled = YES;
self.isUserScrolling = YES;
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
self.isUserScrolling = NO;
}
#pragma mark - OWSConversationSettingsViewDelegate
- (void)resendGroupUpdateForErrorMessage:(TSErrorMessage *)message
{
OWSAssertIsOnMainThread();
OWSAssert([_thread isKindOfClass:[TSGroupThread class]]);
OWSAssert(message);
TSGroupThread *groupThread = (TSGroupThread *)self.thread;
TSGroupModel *groupModel = groupThread.groupModel;
[self updateGroupModelTo:groupModel
successCompletion:^{
DDLogInfo(@"Group updated, removing group creation error.");
[message remove];
}];
}
- (void)groupWasUpdated:(TSGroupModel *)groupModel
{
OWSAssert(groupModel);
NSMutableSet *groupMemberIds = [NSMutableSet setWithArray:groupModel.groupMemberIds];
[groupMemberIds addObject:[TSAccountManager localNumber]];
groupModel.groupMemberIds = [NSMutableArray arrayWithArray:[groupMemberIds allObjects]];
[self updateGroupModelTo:groupModel successCompletion:nil];
}
- (void)popAllConversationSettingsViews
{
if (self.presentedViewController) {
[self.presentedViewController
dismissViewControllerAnimated:YES
completion:^{
[self.navigationController popToViewController:self animated:YES];
}];
} else {
[self.navigationController popToViewController:self animated:YES];
}
}
#pragma mark - ConversationViewLayoutDelegate
- (NSArray<id<ConversationViewLayoutItem>> *)layoutItems
{
return self.viewItems;
}
- (CGFloat)layoutHeaderHeight
{
return (self.showLoadMoreHeader ? kLoadMoreHeaderHeight : 0.f);
}
#pragma mark - ConversationInputToolbarDelegate
- (void)sendButtonPressed
{
[self tryToSendTextMessage:self.inputToolbar.messageText updateKeyboardState:YES];
}
- (void)tryToSendTextMessage:(NSString *)text updateKeyboardState:(BOOL)updateKeyboardState
{
__weak ConversationViewController *weakSelf = self;
if ([self isBlockedContactConversation]) {
[self showUnblockContactUI:^(BOOL isBlocked) {
if (!isBlocked) {
[weakSelf tryToSendTextMessage:text updateKeyboardState:NO];
}
}];
return;
}
BOOL didShowSNAlert =
[self showSafetyNumberConfirmationIfNecessaryWithConfirmationText:[SafetyNumberStrings confirmSendButton]
completion:^(BOOL didConfirmIdentity) {
if (didConfirmIdentity) {
[weakSelf tryToSendTextMessage:text
updateKeyboardState:NO];
}
}];
if (didShowSNAlert) {
return;
}
text = [text ows_stripped];
if (text.length < 1) {
return;
}
// Limit outgoing text messages to 16kb.
//
// We convert large text messages to attachments
// which are presented as normal text messages.
BOOL didAddToProfileWhitelist = [ThreadUtil addThreadToProfileWhitelistIfEmptyContactThread:self.thread];
TSOutgoingMessage *message;
if ([text lengthOfBytesUsingEncoding:NSUTF8StringEncoding] >= kOversizeTextMessageSizeThreshold) {
DataSource *_Nullable dataSource = [DataSourceValue dataSourceWithOversizeText:text];
SignalAttachment *attachment =
[SignalAttachment attachmentWithDataSource:dataSource dataUTI:kOversizeTextAttachmentUTI];
// TODO we should redundantly send the first n chars in the body field so it can be viewed
// on clients that don't support oversized text messgaes, (and potentially generate a preview
// before the attachment is downloaded)
message = [ThreadUtil sendMessageWithAttachment:attachment
inThread:self.thread
quotedReplyModel:self.inputToolbar.quotedReply
messageSender:self.messageSender
completion:nil];
} else {
message = [ThreadUtil sendMessageWithText:text
inThread:self.thread
quotedReplyModel:self.inputToolbar.quotedReply
messageSender:self.messageSender];
}
[self messageWasSent:message];
if (updateKeyboardState) {
[self.inputToolbar toggleDefaultKeyboard];
}
[self.inputToolbar clearTextMessage];
[self clearDraft];
if (didAddToProfileWhitelist) {
[self ensureDynamicInteractions];
}
}
- (void)voiceMemoGestureDidStart
{
OWSAssertIsOnMainThread();
DDLogInfo(@"voiceMemoGestureDidStart");
const CGFloat kIgnoreMessageSendDoubleTapDurationSeconds = 2.f;
if (self.lastMessageSentDate &&
[[NSDate new] timeIntervalSinceDate:self.lastMessageSentDate] < kIgnoreMessageSendDoubleTapDurationSeconds) {
// If users double-taps the message send button, the second tap can look like a
// very short voice message gesture. We want to ignore such gestures.
[self.inputToolbar cancelVoiceMemoIfNecessary];
[self.inputToolbar hideVoiceMemoUI:NO];
[self cancelRecordingVoiceMemo];
return;
}
[self.inputToolbar showVoiceMemoUI];
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
[self requestRecordingVoiceMemo];
}
- (void)voiceMemoGestureDidEnd
{
OWSAssertIsOnMainThread();
DDLogInfo(@"voiceMemoGestureDidEnd");
[self.inputToolbar hideVoiceMemoUI:YES];
[self endRecordingVoiceMemo];
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
- (void)voiceMemoGestureDidCancel
{
OWSAssertIsOnMainThread();
DDLogInfo(@"voiceMemoGestureDidCancel");
[self.inputToolbar hideVoiceMemoUI:NO];
[self cancelRecordingVoiceMemo];
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
- (void)voiceMemoGestureDidChange:(CGFloat)cancelAlpha
{
OWSAssertIsOnMainThread();
[self.inputToolbar setVoiceMemoUICancelAlpha:cancelAlpha];
}
- (void)cancelVoiceMemo
{
OWSAssertIsOnMainThread();
[self.inputToolbar cancelVoiceMemoIfNecessary];
[self.inputToolbar hideVoiceMemoUI:NO];
[self cancelRecordingVoiceMemo];
}
#pragma mark - Database Observation
- (void)setIsUserScrolling:(BOOL)isUserScrolling
{
_isUserScrolling = isUserScrolling;
[self autoLoadMoreIfNecessary];
}
- (void)setIsViewVisible:(BOOL)isViewVisible
{
_isViewVisible = isViewVisible;
[self updateShouldObserveDBModifications];
[self updateCellsVisible];
}
- (void)setIsAppInBackground:(BOOL)isAppInBackground
{
_isAppInBackground = isAppInBackground;
[self updateShouldObserveDBModifications];
[self updateCellsVisible];
}
- (void)updateCellsVisible
{
BOOL isCellVisible = self.isViewVisible && !self.isAppInBackground;
for (ConversationViewCell *cell in self.collectionView.visibleCells) {
cell.isCellVisible = isCellVisible;
}
}
- (void)updateShouldObserveDBModifications
{
self.shouldObserveDBModifications = self.isViewVisible && !self.isAppInBackground;
}
- (void)setShouldObserveDBModifications:(BOOL)shouldObserveDBModifications
{
if (_shouldObserveDBModifications == shouldObserveDBModifications) {
return;
}
_shouldObserveDBModifications = shouldObserveDBModifications;
if (self.shouldObserveDBModifications) {
DDLogVerbose(@"%@ resume observation of database modifications.", self.logTag);
// We need to call resetMappings when we _resume_ observing DB modifications,
// since we've been ignore DB modifications so the mappings can be wrong.
//
// resetMappings can however have the side effect of increasing the mapping's
// "window" size. If that happens, we need to restore the scroll state.
// Snapshot the scroll state by measuring the "distance from top of view to
// bottom of content"; if the mapping's "window" size grows, it will grow
// _upward_.
CGFloat viewTopToContentBottom = self.safeContentHeight - self.collectionView.contentOffset.y;
NSUInteger oldCellCount = [self.messageMappings numberOfItemsInGroup:self.thread.uniqueId];
// ViewItems modified while we were not observing may be stale.
//
// TODO: have a more fine-grained cache expiration based on rows modified.
[self.viewItemCache removeAllObjects];
// Snapshot the "previousLastTimestamp" value; it will be cleared by resetMappings.
NSNumber *_Nullable previousLastTimestamp = self.previousLastTimestamp;
[self resetMappings];
NSUInteger newCellCount = [self.messageMappings numberOfItemsInGroup:self.thread.uniqueId];
// Detect changes in the mapping's "window" size.
if (oldCellCount != newCellCount) {
CGFloat newContentHeight = self.safeContentHeight;
CGPoint newContentOffset = CGPointMake(0, MAX(0, newContentHeight - viewTopToContentBottom));
[self.collectionView setContentOffset:newContentOffset animated:NO];
}
// When we resume observing database changes, we want to scroll to show the user
// any new items inserted while we were not observing. We therefore find the
// first item at or after the "view horizon". See the comments below which explain
// the "view horizon".
ConversationViewItem *_Nullable lastViewItem = self.viewItems.lastObject;
BOOL hasAddedNewItems = (lastViewItem && previousLastTimestamp
&& lastViewItem.interaction.timestamp > previousLastTimestamp.unsignedLongLongValue);
DDLogInfo(@"%@ hasAddedNewItems: %d", self.logTag, hasAddedNewItems);
if (hasAddedNewItems) {
NSIndexPath *_Nullable indexPathToShow = [self firstIndexPathAtViewHorizonTimestamp];
if (indexPathToShow) {
// The goal is to show _both_ the last item before the "view horizon" and the
// first item after the "view horizon". We can't do "top on first item after"
// or "bottom on last item before" or we won't see the other. Unfortunately,
// this gets tricky if either is huge. The largest cells are oversize text,
// which should be rare. Other cells are considerably smaller than a screenful.
[self.collectionView scrollToItemAtIndexPath:indexPathToShow
atScrollPosition:UICollectionViewScrollPositionCenteredVertically
animated:NO];
}
}
self.viewHorizonTimestamp = nil;
DDLogVerbose(@"%@ resumed observation of database modifications.", self.logTag);
} else {
DDLogVerbose(@"%@ pausing observation of database modifications.", self.logTag);
// When stopping observation, try to record the timestamp of the "view horizon".
// The "view horizon" is where we'll want to focus the users when we resume
// observation if any changes have happened while we weren't observing.
// Ideally, we'll focus on those changes. But we can't skip over unread
// interactions, so we prioritize those, if any.
//
// We'll use this later to update the view to reflect any changes made while
// we were not observing the database. See extendRangeToIncludeUnobservedItems
// and the logic above.
ConversationViewItem *_Nullable lastViewItem = self.viewItems.lastObject;
if (lastViewItem) {
self.previousLastTimestamp = @(lastViewItem.interaction.timestamp);
} else {
self.previousLastTimestamp = nil;
}
__block TSInteraction *_Nullable firstUnseenInteraction = nil;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
firstUnseenInteraction =
[[TSDatabaseView unseenDatabaseViewExtension:transaction] firstObjectInGroup:self.thread.uniqueId];
}];
if (firstUnseenInteraction) {
// If there are any unread interactions, focus on the first one.
self.viewHorizonTimestamp = @(firstUnseenInteraction.timestamp);
} else if (lastViewItem) {
// Otherwise, focus _just after_ the last interaction.
self.viewHorizonTimestamp = @(lastViewItem.interaction.timestamp + 1);
} else {
self.viewHorizonTimestamp = nil;
}
DDLogVerbose(@"%@ paused observation of database modifications.", self.logTag);
}
}
- (nullable NSIndexPath *)firstIndexPathAtViewHorizonTimestamp
{
OWSAssert(self.shouldObserveDBModifications);
if (!self.viewHorizonTimestamp) {
return nil;
}
if (self.viewItems.count < 1) {
return nil;
}
uint64_t viewHorizonTimestamp = self.viewHorizonTimestamp.unsignedLongLongValue;
// Binary search for the first view item whose timestamp >= the "view horizon" timestamp.
// We want to move "left" rightward, discarding interactions before this cutoff.
// We want to move "right" leftward, discarding all-but-the-first interaction after this cutoff.
// In the end, if we converge on an item _after_ this cutoff, it's the one we want.
// If we converge on an item _before_ this cutoff, there was no interaction that fit our criteria.
NSUInteger left = 0, right = self.viewItems.count - 1;
while (left != right) {
OWSAssert(left < right);
NSUInteger mid = (left + right) / 2;
OWSAssert(left <= mid);
OWSAssert(mid < right);
ConversationViewItem *viewItem = self.viewItems[mid];
if (viewItem.interaction.timestamp >= viewHorizonTimestamp) {
right = mid;
} else {
// This is an optimization; it also ensures that we converge.
left = mid + 1;
}
}
OWSAssert(left == right);
ConversationViewItem *viewItem = self.viewItems[left];
if (viewItem.interaction.timestamp >= viewHorizonTimestamp) {
DDLogInfo(@"%@ firstIndexPathAtViewHorizonTimestamp: %zd / %zd", self.logTag, left, self.viewItems.count);
return [NSIndexPath indexPathForRow:(NSInteger) left inSection:0];
} else {
DDLogInfo(@"%@ firstIndexPathAtViewHorizonTimestamp: none / %zd", self.logTag, self.viewItems.count);
return nil;
}
}
// We stop observing database modifications when the app or this view is not visible
// (see: shouldObserveDBModifications). When we resume observing db modifications,
// we want to extend the "range" of this view to include any items added to this
// thread while we were not observing.
- (void)extendRangeToIncludeUnobservedItems
{
if (!self.shouldObserveDBModifications) {
return;
}
if (!self.previousLastTimestamp) {
return;
}
uint64_t previousLastTimestamp = self.previousLastTimestamp.unsignedLongLongValue;
__block NSUInteger addedItemCount = 0;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
[[transaction ext:TSMessageDatabaseViewExtensionName]
enumerateRowsInGroup:self.thread.uniqueId
withOptions:NSEnumerationReverse
usingBlock:^(NSString *collection,
NSString *key,
id object,
id metadata,
NSUInteger index,
BOOL *stop) {
if (![object isKindOfClass:[TSInteraction class]]) {
OWSFail(@"Expected a TSInteraction: %@", [object class]);
return;
}
TSInteraction *interaction = (TSInteraction *)object;
if (interaction.timestamp <= previousLastTimestamp) {
*stop = YES;
return;
}
addedItemCount++;
}];
}];
DDLogInfo(@"%@ extendRangeToIncludeUnobservedItems: %zd", self.logTag, addedItemCount);
self.lastRangeLength += addedItemCount;
// We only want to do this once, so clear the "previous last timestamp".
self.previousLastTimestamp = nil;
}
- (void)resetMappings
{
// If we're entering "active" mode (e.g. view is visible and app is in foreground),
// reset all state updated by yapDatabaseModified:.
if (self.messageMappings != nil) {
// Before we begin observing database modifications, make sure
// our mapping and table state is up-to-date.
//
// We need to `beginLongLivedReadTransaction` before we update our
// mapping in order to jump to the most recent commit.
[self.uiDatabaseConnection beginLongLivedReadTransaction];
[self extendRangeToIncludeUnobservedItems];
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
[self.messageMappings updateWithTransaction:transaction];
}];
[self updateMessageMappingRangeOptions];
}
[self reloadViewItems];
[self resetContentAndLayout];
[self ensureDynamicInteractions];
[self updateBackButtonUnreadCount];
[self updateNavigationBarSubtitleLabel];
// There appears to be a bug in YapDatabase that sometimes delays modifications
// made in another process (e.g. the SAE) from showing up in other processes.
// There's a simple workaround: a trivial write to the database flushes changes
// made from other processes.
[self.editingDatabaseConnection asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
[transaction setObject:[NSUUID UUID].UUIDString forKey:@"conversation_view_noop_mod" inCollection:@"temp"];
}];
}
#pragma mark - ConversationCollectionViewDelegate
- (void)collectionViewWillChangeLayout
{
OWSAssertIsOnMainThread();
}
- (void)collectionViewDidChangeLayout
{
OWSAssertIsOnMainThread();
[self updateLastVisibleTimestamp];
}
#pragma mark - View Items
// This is a key method. It builds or rebuilds the list of
// cell view models.
//
// Returns a list of the rows which may have changed size and
// need to be reloaded if we're doing an incremental update
// of the view.
- (NSSet<NSNumber *> *)reloadViewItems
{
NSMutableArray<ConversationViewItem *> *viewItems = [NSMutableArray new];
NSMutableDictionary<NSString *, ConversationViewItem *> *viewItemCache = [NSMutableDictionary new];
NSUInteger count = [self.messageMappings numberOfItemsInSection:0];
BOOL isGroupThread = self.isGroupConversation;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
YapDatabaseViewTransaction *viewTransaction = [transaction ext:TSMessageDatabaseViewExtensionName];
OWSAssert(viewTransaction);
for (NSUInteger row = 0; row < count; row++) {
TSInteraction *interaction =
[viewTransaction objectAtRow:row inSection:0 withMappings:self.messageMappings];
OWSAssert(interaction);
ConversationViewItem *_Nullable viewItem = self.viewItemCache[interaction.uniqueId];
if (viewItem) {
viewItem.previousRow = viewItem.row;
} else {
viewItem = [[ConversationViewItem alloc] initWithInteraction:interaction
isGroupThread:isGroupThread
transaction:transaction];
}
viewItem.row = (NSInteger)row;
[viewItems addObject:viewItem];
OWSAssert(!viewItemCache[interaction.uniqueId]);
viewItemCache[interaction.uniqueId] = viewItem;
}
}];
NSMutableSet<NSNumber *> *rowsThatChangedSize = [NSMutableSet new];
// Update the "shouldShowDate" property of the view items.
BOOL shouldShowDateOnNextViewItem = YES;
uint64_t previousViewItemTimestamp = 0;
for (ConversationViewItem *viewItem in viewItems) {
BOOL canShowDate = NO;
switch (viewItem.interaction.interactionType) {
case OWSInteractionType_Unknown:
case OWSInteractionType_UnreadIndicator:
case OWSInteractionType_Offer:
canShowDate = NO;
break;
case OWSInteractionType_IncomingMessage:
case OWSInteractionType_OutgoingMessage:
case OWSInteractionType_Error:
case OWSInteractionType_Info:
case OWSInteractionType_Call:
canShowDate = YES;
break;
}
BOOL shouldShowDate = NO;
if (!canShowDate) {
shouldShowDate = NO;
shouldShowDateOnNextViewItem = YES;
} else if (shouldShowDateOnNextViewItem) {
shouldShowDate = YES;
shouldShowDateOnNextViewItem = NO;
} else {
uint64_t viewItemTimestamp = viewItem.interaction.timestampForSorting;
OWSAssert(viewItemTimestamp > 0);
OWSAssert(previousViewItemTimestamp > 0);
uint64_t timeDifferenceMs = viewItemTimestamp - previousViewItemTimestamp;
static const uint64_t kShowTimeIntervalMs = 5 * kMinuteInMs;
if (timeDifferenceMs > kShowTimeIntervalMs) {
shouldShowDate = YES;
}
shouldShowDateOnNextViewItem = NO;
}
// If this is an existing view item and it has changed size,
// note that so that we can reload this cell while doing
// incremental updates.
if (viewItem.shouldShowDate != shouldShowDate && viewItem.previousRow != NSNotFound) {
[rowsThatChangedSize addObject:@(viewItem.previousRow)];
}
viewItem.shouldShowDate = shouldShowDate;
previousViewItemTimestamp = viewItem.interaction.timestampForSorting;
}
// Update the "shouldShowDate" property of the view items.
OWSInteractionType lastInteractionType = OWSInteractionType_Unknown;
MessageReceiptStatus lastReceiptStatus = MessageReceiptStatusUploading;
NSString *_Nullable lastIncomingSenderId = nil;
for (ConversationViewItem *viewItem in viewItems.reverseObjectEnumerator) {
BOOL shouldHideRecipientStatus = NO;
BOOL shouldHideBubbleTail = NO;
OWSInteractionType interactionType = viewItem.interaction.interactionType;
if (interactionType == OWSInteractionType_OutgoingMessage) {
TSOutgoingMessage *outgoingMessage = (TSOutgoingMessage *)viewItem.interaction;
MessageReceiptStatus receiptStatus =
[MessageRecipientStatusUtils recipientStatusWithOutgoingMessage:outgoingMessage
referenceView:self.view];
if (outgoingMessage.messageState == TSOutgoingMessageStateFailed) {
// always show "failed to send" status
shouldHideRecipientStatus = NO;
} else {
shouldHideRecipientStatus
= (interactionType == lastInteractionType && receiptStatus == lastReceiptStatus);
}
shouldHideBubbleTail = interactionType == lastInteractionType;
lastReceiptStatus = receiptStatus;
} else if (interactionType == OWSInteractionType_IncomingMessage) {
TSIncomingMessage *incomingMessage = (TSIncomingMessage *)viewItem.interaction;
NSString *incomingSenderId = incomingMessage.authorId;
OWSAssert(incomingSenderId.length > 0);
shouldHideBubbleTail = (interactionType == lastInteractionType &&
[NSObject isNullableObject:lastIncomingSenderId equalTo:incomingSenderId]);
lastIncomingSenderId = incomingSenderId;
}
lastInteractionType = interactionType;
// If this is an existing view item and it has changed size,
// note that so that we can reload this cell while doing
// incremental updates.
if (viewItem.shouldHideRecipientStatus != shouldHideRecipientStatus && viewItem.previousRow != NSNotFound) {
[rowsThatChangedSize addObject:@(viewItem.previousRow)];
}
viewItem.shouldHideRecipientStatus = shouldHideRecipientStatus;
viewItem.shouldHideBubbleTail = shouldHideBubbleTail;
}
self.viewItems = viewItems;
self.viewItemCache = viewItemCache;
return [rowsThatChangedSize copy];
}
// Whenever an interaction is modified, we need to reload it from the DB
// and update the corresponding view item.
- (void)reloadInteractionForViewItem:(ConversationViewItem *)viewItem
{
OWSAssertIsOnMainThread();
OWSAssert(viewItem);
// This should never happen, but don't crash in production if we have a bug.
if (!viewItem) {
return;
}
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
TSInteraction *_Nullable interaction =
[TSInteraction fetchObjectWithUniqueID:viewItem.interaction.uniqueId transaction:transaction];
if (!interaction) {
OWSFail(@"%@ could not reload interaction", self.logTag);
} else {
[viewItem replaceInteraction:interaction transaction:transaction];
}
}];
}
- (nullable ConversationViewItem *)viewItemForIndex:(NSInteger)index
{
if (index < 0 || index >= (NSInteger)self.viewItems.count) {
OWSFail(@"%@ Invalid view item index: %zd", self.logTag, index);
return nil;
}
return self.viewItems[(NSUInteger)index];
}
#pragma mark - UICollectionViewDataSource
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return (NSInteger)self.viewItems.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView
cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
ConversationViewItem *_Nullable viewItem = [self viewItemForIndex:indexPath.row];
ConversationViewCell *cell = [viewItem dequeueCellForCollectionView:self.collectionView indexPath:indexPath];
if (!cell) {
OWSFail(@"%@ Could not dequeue cell.", self.logTag);
return cell;
}
cell.viewItem = viewItem;
cell.delegate = self;
if ([cell isKindOfClass:[OWSMessageCell class]]) {
OWSMessageCell *messageCell = (OWSMessageCell *)cell;
messageCell.messageBubbleView.delegate = self;
}
cell.contentWidth = self.layout.contentWidth;
[self.uiDatabaseConnection readWithBlock:^(YapDatabaseReadTransaction *_Nonnull transaction) {
[cell loadForDisplayWithTransaction:transaction];
}];
return cell;
}
#pragma mark - swipe to show message details
- (void)didPanWithGestureRecognizer:(UIPanGestureRecognizer *)gestureRecognizer
viewItem:(ConversationViewItem *)conversationItem
{
self.currentShowMessageDetailsPanGesture = gestureRecognizer;
const CGFloat swipeTranslation
= ([gestureRecognizer translationInView:self.view].x * (self.view.isRTL ? +1.f : -1.f));
const CGFloat ratioComplete = CGFloatClamp(swipeTranslation / self.view.frame.size.width, 0, 1);
switch (gestureRecognizer.state) {
case UIGestureRecognizerStateBegan: {
TSInteraction *interaction = conversationItem.interaction;
if ([interaction isKindOfClass:[TSIncomingMessage class]] ||
[interaction isKindOfClass:[TSOutgoingMessage class]]) {
// Canary check in case we later have another reason to set navigationController.delegate - we don't
// want to inadvertently clobber it here.
OWSAssert(self.navigationController.delegate == nil);
self.navigationController.delegate = self;
[self showMetadataViewForViewItem:conversationItem];
} else {
OWSFail(@"%@ Can't show message metadata for message of type: %@", self.logTag, [interaction class]);
}
break;
}
case UIGestureRecognizerStateChanged: {
UIPercentDrivenInteractiveTransition *transition = self.showMessageDetailsTransition;
if (!transition) {
DDLogVerbose(@"%@ transition not set up yet", self.logTag);
return;
}
[transition updateInteractiveTransition:ratioComplete];
break;
}
case UIGestureRecognizerStateEnded: {
const CGFloat velocity = [gestureRecognizer velocityInView:self.view].x;
UIPercentDrivenInteractiveTransition *transition = self.showMessageDetailsTransition;
if (!transition) {
DDLogVerbose(@"%@ transition not set up yet", self.logTag);
return;
}
// Complete the transition if moved sufficiently far or fast
// Note this is trickier for incoming, since you are already on the left, and have less space.
if (ratioComplete > 0.3 || velocity < -800) {
[transition finishInteractiveTransition];
} else {
[transition cancelInteractiveTransition];
}
break;
}
case UIGestureRecognizerStateCancelled:
case UIGestureRecognizerStateFailed: {
UIPercentDrivenInteractiveTransition *transition = self.showMessageDetailsTransition;
if (!transition) {
DDLogVerbose(@"%@ transition not set up yet", self.logTag);
return;
}
[transition cancelInteractiveTransition];
break;
}
default:
break;
}
}
- (nullable id<UIViewControllerAnimatedTransitioning>)navigationController:
(UINavigationController *)navigationController
animationControllerForOperation:(UINavigationControllerOperation)operation
fromViewController:(UIViewController *)fromVC
toViewController:(UIViewController *)toVC
{
return [SlideOffAnimatedTransition new];
}
- (nullable id<UIViewControllerInteractiveTransitioning>)
navigationController:(UINavigationController *)navigationController
interactionControllerForAnimationController:(id<UIViewControllerAnimatedTransitioning>)animationController
{
// We needed to be the navigation controller delegate to specify the interactive "slide left for message details"
// animation But we may not want to be the navigation controller delegate permanently.
self.navigationController.delegate = nil;
UIPanGestureRecognizer *recognizer = self.currentShowMessageDetailsPanGesture;
if (recognizer == nil) {
// Not in the middle of the `currentShowMessageDetailsPanGesture`, abort.
return nil;
}
if (recognizer.state == UIGestureRecognizerStateBegan) {
self.showMessageDetailsTransition = [UIPercentDrivenInteractiveTransition new];
self.showMessageDetailsTransition.completionCurve = UIViewAnimationCurveEaseOut;
} else {
self.showMessageDetailsTransition = nil;
}
return self.showMessageDetailsTransition;
}
#pragma mark - UICollectionViewDelegate
- (void)collectionView:(UICollectionView *)collectionView
willDisplayCell:(UICollectionViewCell *)cell
forItemAtIndexPath:(NSIndexPath *)indexPath
{
OWSAssert([cell isKindOfClass:[ConversationViewCell class]]);
ConversationViewCell *conversationViewCell = (ConversationViewCell *)cell;
conversationViewCell.isCellVisible = YES;
}
- (void)collectionView:(UICollectionView *)collectionView
didEndDisplayingCell:(nonnull UICollectionViewCell *)cell
forItemAtIndexPath:(nonnull NSIndexPath *)indexPath
{
OWSAssert([cell isKindOfClass:[ConversationViewCell class]]);
ConversationViewCell *conversationViewCell = (ConversationViewCell *)cell;
conversationViewCell.isCellVisible = NO;
}
#pragma mark - ContactsPickerDelegate
- (void)contactsPickerDidCancel:(ContactsPicker *)contactsPicker
{
DDLogDebug(@"%@ in %s", self.logTag, __PRETTY_FUNCTION__);
}
- (void)contactsPicker:(ContactsPicker *)contactsPicker contactFetchDidFail:(NSError *)error
{
DDLogDebug(@"%@ in %s with error %@", self.logTag, __PRETTY_FUNCTION__, error);
}
- (void)contactsPicker:(ContactsPicker *)contactsPicker didSelectContact:(Contact *)contact
{
OWSAssert(contact);
OWSAssert(contact.cnContact);
DDLogDebug(@"%@ in %s with contact: %@", self.logTag, __PRETTY_FUNCTION__, contact);
OWSContact *_Nullable contactShareRecord = [OWSContacts contactForSystemContact:contact.cnContact];
if (!contactShareRecord) {
DDLogError(@"%@ Could not convert system contact.", self.logTag);
return;
}
BOOL isProfileAvatar = NO;
UIImage *_Nullable avatarImage = contact.image;
for (NSString *recipientId in contact.textSecureIdentifiers) {
if (avatarImage) {
break;
}
avatarImage = [self.contactsManager profileImageForPhoneIdentifier:recipientId];
if (avatarImage) {
isProfileAvatar = YES;
}
}
contactShareRecord.isProfileAvatar = isProfileAvatar;
ContactShareViewModel *contactShare =
[[ContactShareViewModel alloc] initWithContactShareRecord:contactShareRecord avatarImage:avatarImage];
// TODO: We should probably show this in the same navigation view controller.
ApproveContactShareViewController *approveContactShare =
[[ApproveContactShareViewController alloc] initWithContactShare:contactShare
contactsManager:self.contactsManager
delegate:self];
UINavigationController *navigationController =
[[UINavigationController alloc] initWithRootViewController:approveContactShare];
[self dismissKeyBoard];
[self presentViewController:navigationController animated:YES completion:nil];
}
- (void)contactsPicker:(ContactsPicker *)contactsPicker didSelectMultipleContacts:(NSArray<Contact *> *)contacts
{
OWSFail(@"%@ in %s with contacts: %@", self.logTag, __PRETTY_FUNCTION__, contacts);
}
- (BOOL)contactsPicker:(ContactsPicker *)contactsPicker shouldSelectContact:(Contact *)contact
{
// Any reason to preclude contacts?
return YES;
}
#pragma mark - ApproveContactShareViewControllerDelegate
- (void)approveContactShare:(ApproveContactShareViewController *)approveContactShare
didApproveContactShare:(ContactShareViewModel *)contactShare
{
DDLogInfo(@"%@ in %s", self.logTag, __PRETTY_FUNCTION__);
[self dismissViewControllerAnimated:YES
completion:^{
[self sendContactShare:contactShare];
}];
}
- (void)approveContactShare:(ApproveContactShareViewController *)approveContactShare
didCancelContactShare:(ContactShareViewModel *)contactShare
{
DDLogInfo(@"%@ in %s", self.logTag, __PRETTY_FUNCTION__);
[self dismissViewControllerAnimated:YES completion:nil];
}
#pragma mark - ContactShareViewHelperDelegate
- (void)didCreateOrEditContact
{
DDLogInfo(@"%@ in %s", self.logTag, __PRETTY_FUNCTION__);
[self.navigationController popToViewController:self animated:true];
}
@end
NS_ASSUME_NONNULL_END