mirror of
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690 lines
25 KiB
Objective-C
690 lines
25 KiB
Objective-C
//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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#import "ConversationViewItem.h"
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#import "OWSAudioMessageView.h"
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#import "OWSContactOffersCell.h"
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#import "OWSMessageCell.h"
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#import "OWSSystemMessageCell.h"
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#import "OWSUnreadIndicatorCell.h"
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#import "Signal-Swift.h"
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#import <AssetsLibrary/AssetsLibrary.h>
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#import <SignalMessaging/NSString+OWS.h>
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#import <SignalServiceKit/TSInteraction.h>
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NS_ASSUME_NONNULL_BEGIN
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NSString *NSStringForOWSMessageCellType(OWSMessageCellType cellType)
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{
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switch (cellType) {
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case OWSMessageCellType_TextMessage:
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return @"OWSMessageCellType_TextMessage";
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case OWSMessageCellType_OversizeTextMessage:
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return @"OWSMessageCellType_OversizeTextMessage";
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case OWSMessageCellType_StillImage:
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return @"OWSMessageCellType_StillImage";
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case OWSMessageCellType_AnimatedImage:
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return @"OWSMessageCellType_AnimatedImage";
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case OWSMessageCellType_Audio:
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return @"OWSMessageCellType_Audio";
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case OWSMessageCellType_Video:
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return @"OWSMessageCellType_Video";
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case OWSMessageCellType_GenericAttachment:
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return @"OWSMessageCellType_GenericAttachment";
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case OWSMessageCellType_DownloadingAttachment:
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return @"OWSMessageCellType_DownloadingAttachment";
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}
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}
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#pragma mark -
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@interface ConversationViewItem ()
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@property (nonatomic, nullable) NSValue *cachedCellSize;
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#pragma mark - OWSAudioAttachmentPlayerDelegate
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@property (nonatomic) AudioPlaybackState audioPlaybackState;
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@property (nonatomic) CGFloat audioProgressSeconds;
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@property (nonatomic) CGFloat audioDurationSeconds;
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#pragma mark - View State
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@property (nonatomic) BOOL hasViewState;
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@property (nonatomic) OWSMessageCellType messageCellType;
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@property (nonatomic, nullable) DisplayableText *displayableText;
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@property (nonatomic, nullable) TSAttachmentStream *attachmentStream;
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@property (nonatomic, nullable) TSAttachmentPointer *attachmentPointer;
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@property (nonatomic) CGSize contentSize;
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@end
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#pragma mark -
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@implementation ConversationViewItem
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- (instancetype)initWithInteraction:(TSInteraction *)interaction
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isGroupThread:(BOOL)isGroupThread
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transaction:(YapDatabaseReadTransaction *)transaction
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{
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self = [super init];
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if (!self) {
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return self;
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}
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_interaction = interaction;
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_isGroupThread = isGroupThread;
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self.row = NSNotFound;
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self.previousRow = NSNotFound;
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[self ensureViewState:transaction];
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return self;
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}
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- (void)replaceInteraction:(TSInteraction *)interaction transaction:(YapDatabaseReadTransaction *)transaction
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{
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OWSAssert(interaction);
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_interaction = interaction;
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self.hasViewState = NO;
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self.messageCellType = OWSMessageCellType_Unknown;
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self.displayableText = nil;
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self.attachmentStream = nil;
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self.attachmentPointer = nil;
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self.contentSize = CGSizeZero;
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[self clearCachedLayoutState];
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[self ensureViewState:transaction];
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}
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- (void)setShouldShowDate:(BOOL)shouldShowDate
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{
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if (_shouldShowDate == shouldShowDate) {
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return;
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}
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_shouldShowDate = shouldShowDate;
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[self clearCachedLayoutState];
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}
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- (void)setShouldHideRecipientStatus:(BOOL)shouldHideRecipientStatus
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{
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if (_shouldHideRecipientStatus == shouldHideRecipientStatus) {
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return;
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}
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_shouldHideRecipientStatus = shouldHideRecipientStatus;
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[self clearCachedLayoutState];
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}
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- (void)clearCachedLayoutState
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{
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self.cachedCellSize = nil;
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}
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- (CGSize)cellSizeForViewWidth:(int)viewWidth contentWidth:(int)contentWidth
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{
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OWSAssertIsOnMainThread();
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if (!self.cachedCellSize) {
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ConversationViewCell *_Nullable measurementCell = [self measurementCell];
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measurementCell.viewItem = self;
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CGSize cellSize = [measurementCell cellSizeForViewWidth:viewWidth contentWidth:contentWidth];
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self.cachedCellSize = [NSValue valueWithCGSize:cellSize];
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[measurementCell prepareForReuse];
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}
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return [self.cachedCellSize CGSizeValue];
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}
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- (ConversationViewLayoutAlignment)layoutAlignment
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{
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switch (self.interaction.interactionType) {
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case OWSInteractionType_Unknown:
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OWSFail(@"%@ Unknown interaction type: %@", self.logTag, self.interaction.debugDescription);
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return ConversationViewLayoutAlignment_Center;
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case OWSInteractionType_IncomingMessage:
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return ConversationViewLayoutAlignment_Incoming;
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case OWSInteractionType_OutgoingMessage:
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return ConversationViewLayoutAlignment_Outgoing;
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case OWSInteractionType_Error:
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case OWSInteractionType_Info:
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case OWSInteractionType_Call:
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return ConversationViewLayoutAlignment_Center;
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case OWSInteractionType_UnreadIndicator:
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return ConversationViewLayoutAlignment_FullWidth;
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case OWSInteractionType_Offer:
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return ConversationViewLayoutAlignment_Center;
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}
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}
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- (nullable ConversationViewCell *)measurementCell
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{
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OWSAssertIsOnMainThread();
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OWSAssert(self.interaction);
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// For performance reasons, we cache one instance of each kind of
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// cell and uses these cells for measurement.
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static NSMutableDictionary<NSNumber *, ConversationViewCell *> *measurementCellCache = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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measurementCellCache = [NSMutableDictionary new];
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});
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NSNumber *cellCacheKey = @(self.interaction.interactionType);
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ConversationViewCell *_Nullable measurementCell = measurementCellCache[cellCacheKey];
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if (!measurementCell) {
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switch (self.interaction.interactionType) {
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case OWSInteractionType_Unknown:
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OWSFail(@"%@ Unknown interaction type.", self.logTag);
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return nil;
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case OWSInteractionType_IncomingMessage:
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case OWSInteractionType_OutgoingMessage:
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measurementCell = [OWSMessageCell new];
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break;
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case OWSInteractionType_Error:
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case OWSInteractionType_Info:
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case OWSInteractionType_Call:
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measurementCell = [OWSSystemMessageCell new];
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break;
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case OWSInteractionType_UnreadIndicator:
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measurementCell = [OWSUnreadIndicatorCell new];
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break;
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case OWSInteractionType_Offer:
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measurementCell = [OWSContactOffersCell new];
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break;
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}
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OWSAssert(measurementCell);
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measurementCellCache[cellCacheKey] = measurementCell;
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}
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return measurementCell;
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}
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- (ConversationViewCell *)dequeueCellForCollectionView:(UICollectionView *)collectionView
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indexPath:(NSIndexPath *)indexPath
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{
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OWSAssertIsOnMainThread();
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OWSAssert(collectionView);
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OWSAssert(indexPath);
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OWSAssert(self.interaction);
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switch (self.interaction.interactionType) {
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case OWSInteractionType_Unknown:
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OWSFail(@"%@ Unknown interaction type.", self.logTag);
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return nil;
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case OWSInteractionType_IncomingMessage:
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case OWSInteractionType_OutgoingMessage:
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return [collectionView dequeueReusableCellWithReuseIdentifier:[OWSMessageCell cellReuseIdentifier]
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forIndexPath:indexPath];
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case OWSInteractionType_Error:
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case OWSInteractionType_Info:
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case OWSInteractionType_Call:
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return [collectionView dequeueReusableCellWithReuseIdentifier:[OWSSystemMessageCell cellReuseIdentifier]
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forIndexPath:indexPath];
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case OWSInteractionType_UnreadIndicator:
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return [collectionView dequeueReusableCellWithReuseIdentifier:[OWSUnreadIndicatorCell cellReuseIdentifier]
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forIndexPath:indexPath];
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case OWSInteractionType_Offer:
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return [collectionView dequeueReusableCellWithReuseIdentifier:[OWSContactOffersCell cellReuseIdentifier]
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forIndexPath:indexPath];
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}
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}
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#pragma mark - OWSAudioAttachmentPlayerDelegate
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- (void)setAudioPlaybackState:(AudioPlaybackState)audioPlaybackState
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{
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_audioPlaybackState = audioPlaybackState;
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[self.lastAudioMessageView updateContents];
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}
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- (void)setAudioProgress:(CGFloat)progress duration:(CGFloat)duration
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{
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OWSAssertIsOnMainThread();
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self.audioProgressSeconds = progress;
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[self.lastAudioMessageView updateContents];
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}
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#pragma mark - View State
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// TODO: Now that we're caching the displayable text on the view items,
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// I don't think we need this cache any more.
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- (NSCache *)displayableTextCache
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{
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static NSCache *cache = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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cache = [NSCache new];
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// Cache the results for up to 1,000 messages.
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cache.countLimit = 1000;
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});
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return cache;
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}
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- (DisplayableText *)displayableTextForText:(NSString *)text interactionId:(NSString *)interactionId
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{
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OWSAssert(text);
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OWSAssert(interactionId.length > 0);
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return [self displayableTextForInteractionId:interactionId
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textBlock:^{
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return text;
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}];
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}
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- (DisplayableText *)displayableTextForAttachmentStream:(TSAttachmentStream *)attachmentStream
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interactionId:(NSString *)interactionId
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{
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OWSAssert(attachmentStream);
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OWSAssert(interactionId.length > 0);
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return [self displayableTextForInteractionId:interactionId
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textBlock:^{
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NSData *textData = [NSData dataWithContentsOfURL:attachmentStream.mediaURL];
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NSString *text =
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[[NSString alloc] initWithData:textData encoding:NSUTF8StringEncoding];
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return text;
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}];
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}
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- (DisplayableText *)displayableTextForInteractionId:(NSString *)interactionId
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textBlock:(NSString * (^_Nonnull)(void))textBlock
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{
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OWSAssert(interactionId.length > 0);
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DisplayableText *_Nullable displayableText = [[self displayableTextCache] objectForKey:interactionId];
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if (!displayableText) {
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NSString *text = textBlock();
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// Only show up to N characters of text.
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const NSUInteger kMaxTextDisplayLength = 1024;
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NSString *_Nullable fullText = [DisplayableText displayableText:text];
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BOOL isTextTruncated = NO;
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if (!fullText) {
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fullText = @"";
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}
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NSString *_Nullable displayText = fullText;
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if (displayText.length > kMaxTextDisplayLength) {
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// Trim whitespace before _AND_ after slicing the snipper from the string.
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NSString *snippet = [[displayText substringWithRange:NSMakeRange(0, kMaxTextDisplayLength)] ows_stripped];
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displayText = [NSString stringWithFormat:NSLocalizedString(@"OVERSIZE_TEXT_DISPLAY_FORMAT",
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@"A display format for oversize text messages."),
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snippet];
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isTextTruncated = YES;
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}
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if (!displayText) {
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displayText = @"";
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}
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displayableText =
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[[DisplayableText alloc] initWithFullText:fullText displayText:displayText isTextTruncated:isTextTruncated];
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[[self displayableTextCache] setObject:displayableText forKey:interactionId];
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}
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return displayableText;
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}
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- (nullable TSAttachment *)firstAttachmentIfAnyOfMessage:(TSMessage *)message
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transaction:(YapDatabaseReadTransaction *)transaction
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{
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OWSAssert(transaction);
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if (message.attachmentIds.count == 0) {
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return nil;
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}
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NSString *_Nullable attachmentId = message.attachmentIds.firstObject;
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if (attachmentId.length == 0) {
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return nil;
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}
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return [TSAttachment fetchObjectWithUniqueID:attachmentId transaction:transaction];
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}
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- (void)ensureViewState:(YapDatabaseReadTransaction *)transaction
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{
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OWSAssertIsOnMainThread();
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OWSAssert(transaction);
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OWSAssert(!self.hasViewState);
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if (![self.interaction isKindOfClass:[TSOutgoingMessage class]]
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&& ![self.interaction isKindOfClass:[TSIncomingMessage class]]) {
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// Only text & attachment messages have "view state".
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return;
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}
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self.hasViewState = YES;
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TSMessage *message = (TSMessage *)self.interaction;
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TSAttachment *_Nullable attachment = [self firstAttachmentIfAnyOfMessage:message transaction:transaction];
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if (attachment) {
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if ([attachment isKindOfClass:[TSAttachmentStream class]]) {
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self.attachmentStream = (TSAttachmentStream *)attachment;
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if ([attachment.contentType isEqualToString:OWSMimeTypeOversizeTextMessage]) {
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self.messageCellType = OWSMessageCellType_OversizeTextMessage;
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self.displayableText =
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[self displayableTextForAttachmentStream:self.attachmentStream interactionId:message.uniqueId];
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return;
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} else if ([self.attachmentStream isAnimated] || [self.attachmentStream isImage] ||
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[self.attachmentStream isVideo]) {
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if ([self.attachmentStream isAnimated]) {
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self.messageCellType = OWSMessageCellType_AnimatedImage;
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} else if ([self.attachmentStream isImage]) {
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self.messageCellType = OWSMessageCellType_StillImage;
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} else if ([self.attachmentStream isVideo]) {
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self.messageCellType = OWSMessageCellType_Video;
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} else {
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OWSFail(@"%@ unexpected attachment type.", self.logTag);
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self.messageCellType = OWSMessageCellType_GenericAttachment;
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return;
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}
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self.contentSize = [self.attachmentStream imageSize];
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if (self.contentSize.width <= 0 || self.contentSize.height <= 0) {
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self.messageCellType = OWSMessageCellType_GenericAttachment;
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}
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return;
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} else if ([self.attachmentStream isAudio]) {
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CGFloat audioDurationSeconds = [self.attachmentStream audioDurationSeconds];
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if (audioDurationSeconds > 0) {
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self.audioDurationSeconds = audioDurationSeconds;
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self.messageCellType = OWSMessageCellType_Audio;
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} else {
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self.messageCellType = OWSMessageCellType_GenericAttachment;
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}
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return;
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} else {
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self.messageCellType = OWSMessageCellType_GenericAttachment;
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return;
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}
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} else if ([attachment isKindOfClass:[TSAttachmentPointer class]]) {
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self.messageCellType = OWSMessageCellType_DownloadingAttachment;
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self.attachmentPointer = (TSAttachmentPointer *)attachment;
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return;
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} else {
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OWSFail(@"%@ Unknown attachment type", self.logTag);
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}
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} else if (message.body != nil) {
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self.messageCellType = OWSMessageCellType_TextMessage;
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self.displayableText = [self displayableTextForText:message.body interactionId:message.uniqueId];
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OWSAssert(self.displayableText);
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return;
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} else {
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OWSFail(@"%@ Message has neither attachment nor body", self.logTag);
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}
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DDLogVerbose(@"%@ message: %@", self.logTag, message.description);
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OWSFail(@"%@ Unknown cell type", self.logTag);
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// Messages of unknown type (including messages with missing attachments)
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// are rendered like empty text messages, but without any interactivity.
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self.messageCellType = OWSMessageCellType_Unknown;
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self.displayableText = [[DisplayableText alloc] initWithFullText:@"" displayText:@"" isTextTruncated:NO];
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}
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- (OWSMessageCellType)messageCellType
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{
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OWSAssertIsOnMainThread();
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return _messageCellType;
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}
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- (nullable DisplayableText *)displayableText
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{
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OWSAssertIsOnMainThread();
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OWSAssert(self.hasViewState);
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OWSAssert(_displayableText);
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OWSAssert(_displayableText.displayText);
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OWSAssert(_displayableText.fullText);
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return _displayableText;
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}
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- (nullable TSAttachmentStream *)attachmentStream
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{
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OWSAssertIsOnMainThread();
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OWSAssert(self.hasViewState);
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return _attachmentStream;
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}
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- (nullable TSAttachmentPointer *)attachmentPointer
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{
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OWSAssertIsOnMainThread();
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OWSAssert(self.hasViewState);
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return _attachmentPointer;
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}
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- (CGSize)contentSize
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{
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OWSAssertIsOnMainThread();
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OWSAssert(self.hasViewState);
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return _contentSize;
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}
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#pragma mark - UIMenuController
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- (NSArray<UIMenuItem *> *)menuControllerItems
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{
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return @[
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[[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"EDIT_ITEM_SHARE_ACTION",
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@"Short name for edit menu item to share contents of media message.")
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action:self.shareActionSelector],
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[[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"EDIT_ITEM_MESSAGE_METADATA_ACTION",
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@"Short name for edit menu item to show message metadata.")
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action:self.metadataActionSelector],
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[[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"EDIT_ITEM_COPY_ACTION",
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@"Short name for edit menu item to copy contents of media message.")
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action:self.copyActionSelector],
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[[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"EDIT_ITEM_DELETE_ACTION",
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@"Short name for edit menu item to delete contents of media message.")
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action:self.deleteActionSelector],
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// TODO: Do we want a save action?
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[[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"EDIT_ITEM_SAVE_ACTION",
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@"Short name for edit menu item to save contents of media message.")
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action:self.saveActionSelector],
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];
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}
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- (SEL)copyActionSelector
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{
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return NSSelectorFromString(@"copyAction:");
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}
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- (SEL)saveActionSelector
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{
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return NSSelectorFromString(@"saveAction:");
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}
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- (SEL)shareActionSelector
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{
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return NSSelectorFromString(@"shareAction:");
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}
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- (SEL)deleteActionSelector
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{
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return NSSelectorFromString(@"deleteAction:");
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}
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- (SEL)metadataActionSelector
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{
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return NSSelectorFromString(@"metadataAction:");
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}
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// We only use custom actions in UIMenuController.
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- (BOOL)canPerformAction:(SEL)action
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{
|
|
if (action == self.copyActionSelector) {
|
|
return [self hasActionContent];
|
|
} else if (action == self.saveActionSelector) {
|
|
return [self canSave];
|
|
} else if (action == self.shareActionSelector) {
|
|
return [self hasActionContent];
|
|
} else if (action == self.deleteActionSelector) {
|
|
return YES;
|
|
} else if (action == self.metadataActionSelector) {
|
|
return YES;
|
|
} else {
|
|
return NO;
|
|
}
|
|
}
|
|
|
|
- (void)copyAction
|
|
{
|
|
switch (self.messageCellType) {
|
|
case OWSMessageCellType_TextMessage:
|
|
case OWSMessageCellType_OversizeTextMessage:
|
|
OWSAssert(self.displayableText);
|
|
[UIPasteboard.generalPasteboard setString:self.displayableText.fullText];
|
|
break;
|
|
case OWSMessageCellType_StillImage:
|
|
case OWSMessageCellType_AnimatedImage:
|
|
case OWSMessageCellType_Audio:
|
|
case OWSMessageCellType_Video:
|
|
case OWSMessageCellType_GenericAttachment: {
|
|
NSString *utiType = [MIMETypeUtil utiTypeForMIMEType:self.attachmentStream.contentType];
|
|
if (!utiType) {
|
|
OWSFail(@"%@ Unknown MIME type: %@", self.logTag, self.attachmentStream.contentType);
|
|
utiType = (NSString *)kUTTypeGIF;
|
|
}
|
|
NSData *data = [NSData dataWithContentsOfURL:[self.attachmentStream mediaURL]];
|
|
if (!data) {
|
|
OWSFail(@"%@ Could not load attachment data: %@", self.logTag, [self.attachmentStream mediaURL]);
|
|
return;
|
|
}
|
|
[UIPasteboard.generalPasteboard setData:data forPasteboardType:utiType];
|
|
break;
|
|
}
|
|
case OWSMessageCellType_DownloadingAttachment: {
|
|
OWSFail(@"%@ Can't copy not-yet-downloaded attachment", self.logTag);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
- (void)shareAction
|
|
{
|
|
switch (self.messageCellType) {
|
|
case OWSMessageCellType_TextMessage:
|
|
case OWSMessageCellType_OversizeTextMessage:
|
|
OWSAssert(self.displayableText);
|
|
[AttachmentSharing showShareUIForText:self.displayableText.fullText];
|
|
break;
|
|
case OWSMessageCellType_StillImage:
|
|
case OWSMessageCellType_AnimatedImage:
|
|
case OWSMessageCellType_Audio:
|
|
case OWSMessageCellType_Video:
|
|
case OWSMessageCellType_GenericAttachment:
|
|
[AttachmentSharing showShareUIForAttachment:self.attachmentStream];
|
|
break;
|
|
case OWSMessageCellType_DownloadingAttachment: {
|
|
OWSFail(@"%@ Can't share not-yet-downloaded attachment", self.logTag);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
- (BOOL)canSave
|
|
{
|
|
switch (self.messageCellType) {
|
|
case OWSMessageCellType_TextMessage:
|
|
case OWSMessageCellType_OversizeTextMessage:
|
|
return NO;
|
|
case OWSMessageCellType_StillImage:
|
|
case OWSMessageCellType_AnimatedImage:
|
|
return YES;
|
|
case OWSMessageCellType_Audio:
|
|
return NO;
|
|
case OWSMessageCellType_Video:
|
|
return UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(self.attachmentStream.mediaURL.path);
|
|
case OWSMessageCellType_GenericAttachment:
|
|
return NO;
|
|
case OWSMessageCellType_DownloadingAttachment: {
|
|
return NO;
|
|
}
|
|
}
|
|
}
|
|
|
|
- (void)saveAction
|
|
{
|
|
switch (self.messageCellType) {
|
|
case OWSMessageCellType_TextMessage:
|
|
case OWSMessageCellType_OversizeTextMessage:
|
|
OWSFail(@"%@ Cannot save text data.", self.logTag);
|
|
break;
|
|
case OWSMessageCellType_StillImage:
|
|
case OWSMessageCellType_AnimatedImage: {
|
|
NSData *data = [NSData dataWithContentsOfURL:[self.attachmentStream mediaURL]];
|
|
if (!data) {
|
|
OWSFail(@"%@ Could not load image data: %@", self.logTag, [self.attachmentStream mediaURL]);
|
|
return;
|
|
}
|
|
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
|
|
[library writeImageDataToSavedPhotosAlbum:data
|
|
metadata:nil
|
|
completionBlock:^(NSURL *assetURL, NSError *error) {
|
|
if (error) {
|
|
DDLogWarn(@"Error Saving image to photo album: %@", error);
|
|
}
|
|
}];
|
|
break;
|
|
}
|
|
case OWSMessageCellType_Audio:
|
|
OWSFail(@"%@ Cannot save media data.", self.logTag);
|
|
break;
|
|
case OWSMessageCellType_Video:
|
|
if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(self.attachmentStream.mediaURL.path)) {
|
|
UISaveVideoAtPathToSavedPhotosAlbum(self.attachmentStream.mediaURL.path, self, nil, nil);
|
|
} else {
|
|
OWSFail(@"%@ Could not save incompatible video data.", self.logTag);
|
|
}
|
|
break;
|
|
case OWSMessageCellType_GenericAttachment:
|
|
OWSFail(@"%@ Cannot save media data.", self.logTag);
|
|
break;
|
|
case OWSMessageCellType_DownloadingAttachment: {
|
|
OWSFail(@"%@ Can't save not-yet-downloaded attachment", self.logTag);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
- (void)deleteAction
|
|
{
|
|
[self.interaction remove];
|
|
}
|
|
|
|
- (BOOL)hasActionContent
|
|
{
|
|
switch (self.messageCellType) {
|
|
case OWSMessageCellType_TextMessage:
|
|
case OWSMessageCellType_OversizeTextMessage:
|
|
OWSAssert(self.displayableText);
|
|
return self.displayableText.fullText.length > 0;
|
|
case OWSMessageCellType_StillImage:
|
|
case OWSMessageCellType_AnimatedImage:
|
|
case OWSMessageCellType_Audio:
|
|
case OWSMessageCellType_Video:
|
|
case OWSMessageCellType_GenericAttachment:
|
|
return self.attachmentStream != nil;
|
|
case OWSMessageCellType_DownloadingAttachment: {
|
|
return NO;
|
|
}
|
|
}
|
|
}
|
|
|
|
@end
|
|
|
|
NS_ASSUME_NONNULL_END
|