mirror of
https://github.com/vector-im/element-ios.git
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398 lines
16 KiB
Mathematica
398 lines
16 KiB
Mathematica
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/*
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Copyright 2014 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#import "RoomMessage.h"
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#import "MatrixHandler.h"
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#import "AppSettings.h"
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NSString *const kLocalEchoEventIdPrefix = @"localEcho-";
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NSString *const kFailedEventId = @"failedEventId";
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static NSDateFormatter *dateFormatter = nil;
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static NSAttributedString *messageItemsSeparator = nil;
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typedef enum : NSUInteger {
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RoomMessageItemDisplayModeDefault,
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RoomMessageItemDisplayModeHighlighted,
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RoomMessageItemDisplayModeLocalEcho,
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RoomMessageItemDisplayModeFailure,
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RoomMessageItemDisplayModeError
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} RoomMessageItemDisplayMode;
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@interface RoomMessageItem : NSObject
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@property (nonatomic) NSString *textMessage;
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@property (nonatomic) NSString *eventId;
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@property (nonatomic) NSDate *date;
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@property (nonatomic) RoomMessageItemDisplayMode displayMode;
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@property (nonatomic) NSUInteger height;
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// True if text message starts with the sender name (see membership events, emote ...)
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@property (nonatomic) BOOL startsWithSenderName;
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- (id)initWithTextMessage:(NSString*)textMessage andEvent:(MXEvent*)event;
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@end
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#pragma mark -
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@interface RoomMessage() {
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// Array of RoomMessageItem
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NSMutableArray *messageItems;
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}
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+ (NSDateFormatter *)dateFormatter;
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+ (NSAttributedString *)messageItemsSeparator;
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+ (NSDictionary*)stringAttributesForDisplayMode:(RoomMessageItemDisplayMode)displayMode;
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@end
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@implementation RoomMessage
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- (id)initWithEvent:(MXEvent*)event andRoomState:(MXRoomState*)roomState {
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if (self = [super init]) {
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MatrixHandler *mxHandler = [MatrixHandler sharedHandler];
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_senderId = event.userId;
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_senderName = [roomState memberName:event.userId];
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_senderAvatarUrl = [roomState memberWithUserId:event.userId].avatarUrl;
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_contentSize = CGSizeZero;
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// Build text message from event
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NSString* textMessage = [mxHandler displayTextForEvent:event withRoomState:roomState inSubtitleMode:NO];
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// Set the message type (use Text by default), and check attachment if any
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_messageType = RoomMessageTypeText;
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if ([mxHandler isSupportedAttachment:event]) {
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// Note: event.eventType is equal here to MXEventTypeRoomMessage
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NSString *msgtype = event.content[@"msgtype"];
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if ([msgtype isEqualToString:kMXMessageTypeImage]) {
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_messageType = RoomMessageTypeImage;
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_attachmentURL = event.content[@"url"];
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_attachmentInfo = event.content[@"info"];
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_thumbnailURL = event.content[@"thumbnail_url"];
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_thumbnailInfo = event.content[@"thumbnail_info"];
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} else if ([msgtype isEqualToString:kMXMessageTypeAudio]) {
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// Not supported yet
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//_messageType = RoomMessageTypeAudio;
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} else if ([msgtype isEqualToString:kMXMessageTypeVideo]) {
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_messageType = RoomMessageTypeVideo;
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_attachmentURL = event.content[@"url"];
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_attachmentInfo = event.content[@"info"];
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if (_attachmentInfo) {
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_thumbnailURL = _attachmentInfo[@"thumbnail_url"];
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_thumbnailInfo = _attachmentInfo[@"thumbnail_info"];
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}
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} else if ([msgtype isEqualToString:kMXMessageTypeLocation]) {
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// Not supported yet
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// _messageType = RoomMessageTypeLocation;
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}
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}
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if (textMessage) {
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// Create first message item
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RoomMessageItem *msgItem = [[RoomMessageItem alloc] initWithTextMessage:textMessage andEvent:event];
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msgItem.startsWithSenderName = ([textMessage hasPrefix:_senderName] || [mxHandler isEmote:event]);
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messageItems = [NSMutableArray array];
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[messageItems addObject:msgItem];
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msgItem.height = self.contentSize.height;
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}
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else {
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// Ignore this event
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self = nil;
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}
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}
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return self;
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}
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- (void)dealloc {
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messageItems = nil;
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}
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- (BOOL)addEvent:(MXEvent *)event withRoomState:(MXRoomState*)roomState {
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// We group together text messages from the same user
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if ([event.userId isEqualToString:_senderId] && (_messageType == RoomMessageTypeText)) {
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// Attachments (image, video ...) cannot be added here
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MatrixHandler *mxHandler = [MatrixHandler sharedHandler];
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if ([mxHandler isSupportedAttachment:event]) {
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return NO;
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}
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// Check sender information
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if ((_senderName || [roomState memberName:event.userId]) &&
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([_senderName isEqualToString:[roomState memberName:event.userId]] == NO)) {
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return NO;
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}
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if ((_senderAvatarUrl || [roomState memberWithUserId:event.userId].avatarUrl) &&
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([_senderAvatarUrl isEqualToString:[roomState memberWithUserId:event.userId].avatarUrl] == NO)) {
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return NO;
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}
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NSString* textMessage = [mxHandler displayTextForEvent:event withRoomState:roomState inSubtitleMode:NO];
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if (textMessage) {
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// Create new message item
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RoomMessageItem *addedItem = [[RoomMessageItem alloc] initWithTextMessage:textMessage andEvent:event];
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addedItem.startsWithSenderName = ([textMessage hasPrefix:_senderName] || [mxHandler isEmote:event]);
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// Insert the new item according to its date
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NSUInteger index = messageItems.count;
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NSMutableArray *savedMessageItems = [NSMutableArray arrayWithCapacity:index];
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RoomMessageItem* msgItem;
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if (addedItem.date) {
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while (index--) {
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msgItem = [messageItems lastObject];
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if (!msgItem.date || [msgItem.date compare:addedItem.date] == NSOrderedDescending) {
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[savedMessageItems insertObject:msgItem atIndex:0];
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[messageItems removeLastObject];
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} else {
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break;
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}
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}
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}
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// Force content size refresh
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_attributedTextMessage = nil;
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_contentSize = CGSizeZero;
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CGFloat previousHeight = self.contentSize.height;
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[messageItems addObject:addedItem];
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// Force content size refresh after adding new item in order to compute its height
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_attributedTextMessage = nil;
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_contentSize = CGSizeZero;
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addedItem.height = self.contentSize.height - previousHeight;
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// Re-add existing message items (later in time than the new one)
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for (msgItem in savedMessageItems) {
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previousHeight = self.contentSize.height;
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[messageItems addObject:msgItem];
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// Force content size refresh after adding new item in order to compute its height
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_attributedTextMessage = nil;
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_contentSize = CGSizeZero;
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msgItem.height = self.contentSize.height - previousHeight;
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}
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}
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// else the event is ignored, we consider it as handled
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return YES;
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}
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return NO;
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}
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- (BOOL)removeEvent:(NSString *)eventId {
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if (_messageType == RoomMessageTypeText) {
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NSUInteger index = messageItems.count;
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NSMutableArray *savedMessageItems = [NSMutableArray arrayWithCapacity:index];
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RoomMessageItem* msgItem;
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while (index--) {
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msgItem = [messageItems lastObject];
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if ([msgItem.eventId isEqualToString:eventId] == NO) {
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[savedMessageItems insertObject:msgItem atIndex:0];
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[messageItems removeLastObject];
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} else {
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[messageItems removeLastObject];
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_attributedTextMessage = nil;
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_contentSize = CGSizeZero;
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for (msgItem in savedMessageItems) {
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// Re-add message items
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CGFloat previousHeight = self.contentSize.height;
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[messageItems addObject:msgItem];
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// Force content size refresh after adding new item in order to compute its height
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_attributedTextMessage = nil;
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_contentSize = CGSizeZero;
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msgItem.height = self.contentSize.height - previousHeight;
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}
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return YES;
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}
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}
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// here the provided eventId has not been found, restore message Items and return
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messageItems = savedMessageItems;
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}
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return NO;
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}
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- (BOOL)containsEventId:(NSString *)eventId {
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for (RoomMessageItem* msgItem in messageItems) {
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if ([msgItem.eventId isEqualToString:eventId]) {
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return YES;
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}
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}
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return NO;
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}
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#pragma mark -
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- (CGSize)contentSize {
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if (CGSizeEqualToSize(_contentSize, CGSizeZero)) {
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if (_messageType == RoomMessageTypeText) {
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if (self.attributedTextMessage.length) {
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// Use a TextView template to compute cell height
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UITextView *dummyTextView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, ROOM_MESSAGE_CELL_MAX_TEXTVIEW_WIDTH, MAXFLOAT)];
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dummyTextView.attributedText = self.attributedTextMessage;
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_contentSize = [dummyTextView sizeThatFits:dummyTextView.frame.size];
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}
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} else if (_messageType == RoomMessageTypeImage || _messageType == RoomMessageTypeVideo) {
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CGFloat width, height;
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width = height = 40;
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if (_thumbnailInfo) {
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width = [_thumbnailInfo[@"w"] integerValue] + 2 * ROOM_MESSAGE_CELL_IMAGE_MARGIN;
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height = [_thumbnailInfo[@"h"] integerValue] + 2 * ROOM_MESSAGE_CELL_IMAGE_MARGIN;
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if (width > ROOM_MESSAGE_CELL_MAX_TEXTVIEW_WIDTH || height > ROOM_MESSAGE_CELL_MAX_TEXTVIEW_WIDTH) {
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if (width > height) {
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height = (height * ROOM_MESSAGE_CELL_MAX_TEXTVIEW_WIDTH) / width;
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height = floorf(height / 2) * 2;
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width = ROOM_MESSAGE_CELL_MAX_TEXTVIEW_WIDTH;
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} else {
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width = (width * ROOM_MESSAGE_CELL_MAX_TEXTVIEW_WIDTH) / height;
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width = floorf(width / 2) * 2;
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height = ROOM_MESSAGE_CELL_MAX_TEXTVIEW_WIDTH;
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}
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}
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}
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_contentSize = CGSizeMake(width, height);
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} else {
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_contentSize = CGSizeMake(40, 40);
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}
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}
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return _contentSize;
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}
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- (NSAttributedString*)attributedTextMessage {
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if (!_attributedTextMessage && messageItems.count) {
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// Create attributed string
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NSMutableAttributedString *mutableAttributedString = nil;
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for (RoomMessageItem* msgItem in messageItems) {
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NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:msgItem.textMessage attributes:[RoomMessage stringAttributesForDisplayMode:msgItem.displayMode]];
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if (!mutableAttributedString) {
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mutableAttributedString = [[NSMutableAttributedString alloc] initWithAttributedString:attributedString];
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} else {
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// Append attributed text
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[mutableAttributedString appendAttributedString:[RoomMessage messageItemsSeparator]];
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[mutableAttributedString appendAttributedString:attributedString];
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}
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}
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_attributedTextMessage = mutableAttributedString;
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}
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return _attributedTextMessage;
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}
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- (BOOL)startsWithSenderName {
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if (_messageType == RoomMessageTypeText) {
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if (messageItems.count) {
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RoomMessageItem *msgItem = [messageItems firstObject];
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return msgItem.startsWithSenderName;
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}
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}
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return NO;
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}
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- (BOOL)isUploadInProgress {
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if (_messageType != RoomMessageTypeText) {
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if (messageItems.count) {
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RoomMessageItem *msgItem = [messageItems firstObject];
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return (msgItem.displayMode == RoomMessageItemDisplayModeLocalEcho);
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}
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}
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return NO;
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}
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#pragma mark -
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+ (NSDateFormatter *)dateFormatter {
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@synchronized(self) {
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if(dateFormatter == nil) {
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NSString *dateFormat = @"MMM dd HH:mm";
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dateFormatter = [[NSDateFormatter alloc] init];
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[dateFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:[[[NSBundle mainBundle] preferredLocalizations] objectAtIndex:0]]];
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[dateFormatter setFormatterBehavior:NSDateFormatterBehavior10_4];
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[dateFormatter setTimeStyle:NSDateFormatterNoStyle];
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[dateFormatter setDateFormat:dateFormat];
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}
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}
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return dateFormatter;
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}
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+ (NSAttributedString *)messageItemsSeparator {
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@synchronized(self) {
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if(messageItemsSeparator == nil) {
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messageItemsSeparator = [[NSAttributedString alloc] initWithString:@"\r\n\r\n" attributes:@{NSForegroundColorAttributeName : [UIColor blackColor],
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NSFontAttributeName: [UIFont systemFontOfSize:4]}];
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}
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}
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return messageItemsSeparator;
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}
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+ (NSDictionary*)stringAttributesForDisplayMode:(RoomMessageItemDisplayMode)displayMode {
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UIColor *textColor;
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switch (displayMode) {
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case RoomMessageItemDisplayModeDefault:
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textColor = [UIColor blackColor];
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break;
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case RoomMessageItemDisplayModeHighlighted:
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textColor = [UIColor blueColor];
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break;
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case RoomMessageItemDisplayModeLocalEcho:
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textColor = [UIColor lightGrayColor];
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break;
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case RoomMessageItemDisplayModeFailure:
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case RoomMessageItemDisplayModeError:
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textColor = [UIColor redColor];
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break;
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default:
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textColor = [UIColor blackColor];
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break;
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}
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return @{
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NSForegroundColorAttributeName : textColor,
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NSFontAttributeName: [UIFont systemFontOfSize:14]
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};
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}
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@end
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# pragma mark -
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@implementation RoomMessageItem
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- (id)initWithTextMessage:(NSString*)textMessage andEvent:(MXEvent*)event {
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if (self = [super init]) {
|
||
|
|
_textMessage = textMessage;
|
||
|
|
_eventId = event.eventId;
|
||
|
|
_height = 0;
|
||
|
|
|
||
|
|
// Set date time text label
|
||
|
|
if (event.originServerTs != kMXUndefinedTimestamp) {
|
||
|
|
_date = [NSDate dateWithTimeIntervalSince1970:event.originServerTs/1000];
|
||
|
|
// NSString* dateTime = [[RoomMessage dateFormatter] stringFromDate:_date];
|
||
|
|
} else {
|
||
|
|
_date = nil;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set display mode
|
||
|
|
MatrixHandler *mxHandler = [MatrixHandler sharedHandler];
|
||
|
|
BOOL isIncomingMsg = ([event.userId isEqualToString:mxHandler.userId] == NO);
|
||
|
|
if ([textMessage hasPrefix:kMatrixHandlerUnsupportedMessagePrefix]) {
|
||
|
|
_displayMode = RoomMessageItemDisplayModeError;
|
||
|
|
} else if ([_eventId hasPrefix:kFailedEventId]) {
|
||
|
|
_displayMode = RoomMessageItemDisplayModeFailure;
|
||
|
|
} else if (isIncomingMsg && ([textMessage rangeOfString:mxHandler.userDisplayName options:NSCaseInsensitiveSearch].location != NSNotFound || [textMessage rangeOfString:mxHandler.userId options:NSCaseInsensitiveSearch].location != NSNotFound)) {
|
||
|
|
_displayMode = RoomMessageItemDisplayModeHighlighted;
|
||
|
|
} else if (!isIncomingMsg && [_eventId hasPrefix:kLocalEchoEventIdPrefix]) {
|
||
|
|
_displayMode = RoomMessageItemDisplayModeLocalEcho;
|
||
|
|
} else {
|
||
|
|
_displayMode = RoomMessageItemDisplayModeDefault;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return self;
|
||
|
|
}
|
||
|
|
@end
|
||
|
|
|