mirror of
https://gitlab.opencode.de/bwi/bundesmessenger/clients/bundesmessenger-ios.git
synced 2026-04-20 00:24:43 +02:00
Move cell data and data sources to corresponding modules.
This commit is contained in:
SBiOSoftWhare
@@ -0,0 +1,504 @@
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/*
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Copyright 2015 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 "RoomBubbleCellData.h"
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#import "EventFormatter.h"
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#import "AvatarGenerator.h"
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static NSAttributedString *timestampVerticalWhitespace = nil;
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static NSAttributedString *readReceiptVerticalWhitespace = nil;
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@implementation RoomBubbleCellData
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#pragma mark - Override MXKRoomBubbleCellData
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- (instancetype)initWithEvent:(MXEvent *)event andRoomState:(MXRoomState *)roomState andRoomDataSource:(MXKRoomDataSource *)roomDataSource2
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{
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self = [super initWithEvent:event andRoomState:roomState andRoomDataSource:roomDataSource2];
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if (self)
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{
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if (event.eventType == MXEventTypeRoomMember)
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{
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// Membership events have their own cell type
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self.tag = RoomBubbleCellDataTagMembership;
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// Membership events can be collapsed together
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self.collapsable = YES;
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// Collapse them by default
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self.collapsed = YES;
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}
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// Increase maximum number of components
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self.maxComponentCount = 20;
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// Initialize read receipts
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self.readReceipts = [NSMutableDictionary dictionary];
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self.readReceipts[event.eventId] = [roomDataSource.room getEventReceipts:event.eventId sorted:YES];
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// Reset attributedTextMessage to force reset MXKRoomCellData parameters
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self.attributedTextMessage = nil;
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}
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return self;
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}
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- (void)prepareBubbleComponentsPosition
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{
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if (shouldUpdateComponentsPosition)
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{
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// The bubble layout depends on the room read receipts which must be retrieved on the main thread to prevent us from race conditions.
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// Check here the current thread, this is just a sanity check because this method is called during the rendering step
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// which takes place on the main thread.
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if ([NSThread currentThread] != [NSThread mainThread])
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{
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NSLog(@"[RoomBubbleCellData] prepareBubbleComponentsPosition called on wrong thread");
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dispatch_sync(dispatch_get_main_queue(), ^{
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[self refreshBubbleComponentsPosition];
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});
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}
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else
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{
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[self refreshBubbleComponentsPosition];
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}
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shouldUpdateComponentsPosition = NO;
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}
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}
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- (NSAttributedString*)attributedTextMessage
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{
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@synchronized(bubbleComponents)
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{
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if (self.hasAttributedTextMessage && !attributedTextMessage.length)
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{
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// Attributed text message depends on the room read receipts which must be retrieved on the main thread to prevent us from race conditions.
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// Check here the current thread, this is just a sanity check because the attributed text message
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// is requested during the rendering step which takes place on the main thread.
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if ([NSThread currentThread] != [NSThread mainThread])
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{
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NSLog(@"[RoomBubbleCellData] attributedTextMessage called on wrong thread");
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dispatch_sync(dispatch_get_main_queue(), ^{
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self.attributedTextMessage = [self refreshAttributedTextMessage];
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});
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}
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else
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{
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self.attributedTextMessage = [self refreshAttributedTextMessage];
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}
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}
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}
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return attributedTextMessage;
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}
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#pragma mark - Bubble collapsing
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- (BOOL)collapseWith:(id<MXKRoomBubbleCellDataStoring>)cellData
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{
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if (self.tag == RoomBubbleCellDataTagMembership
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&& cellData.tag == RoomBubbleCellDataTagMembership)
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{
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// For now, do not merge VoIP conference events
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if (![MXCallManager isConferenceUser:cellData.events.firstObject.stateKey])
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{
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// Keep a pagination between events of different days
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NSString *bubbleDateString = [roomDataSource.eventFormatter dateStringFromDate:self.date withTime:NO];
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NSString *eventDateString = [roomDataSource.eventFormatter dateStringFromDate:((RoomBubbleCellData*)cellData).date withTime:NO];
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if (bubbleDateString && eventDateString && [bubbleDateString isEqualToString:eventDateString])
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{
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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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return [super collapseWith:cellData];
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}
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- (void)setCollapsed:(BOOL)collapsed
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{
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if (collapsed != self.collapsed)
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{
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super.collapsed = collapsed;
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// Refresh only cells series header
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if (self.collapsedAttributedTextMessage && self.nextCollapsableCellData)
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{
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attributedTextMessage = nil;
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}
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}
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}
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#pragma mark -
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- (NSAttributedString*)refreshAttributedTextMessage
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{
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// CAUTION: This method must be called on the main thread.
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// Return the collapsed string only for cells series header
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if (self.collapsed && self.collapsedAttributedTextMessage && self.nextCollapsableCellData)
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{
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return super.collapsedAttributedTextMessage;
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}
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NSMutableAttributedString *currentAttributedTextMsg;
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NSInteger selectedComponentIndex = self.selectedComponentIndex;
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NSInteger lastMessageIndex = self.containsLastMessage ? self.mostRecentComponentIndex : NSNotFound;
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MXKRoomBubbleComponent *component;
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NSAttributedString *componentString;
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NSUInteger index = 0;
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for (; index < bubbleComponents.count; index++)
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{
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component = bubbleComponents[index];
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componentString = component.attributedTextMessage;
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if (componentString)
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{
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// Check whether another component than this one is selected
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// Note: When a component is selected, it is highlighted by applying an alpha on other components.
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if (selectedComponentIndex != NSNotFound && selectedComponentIndex != index && componentString.length)
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{
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// Apply alpha to blur this component
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NSMutableAttributedString *customComponentString = [[NSMutableAttributedString alloc] initWithAttributedString:componentString];
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UIColor *color = [componentString attribute:NSForegroundColorAttributeName atIndex:0 effectiveRange:nil];
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color = [color colorWithAlphaComponent:0.2];
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[customComponentString addAttribute:NSForegroundColorAttributeName value:color range:NSMakeRange(0, customComponentString.length)];
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componentString = customComponentString;
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}
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// Check whether the timestamp is displayed for this component, and check whether a vertical whitespace is required
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if ((selectedComponentIndex == index || lastMessageIndex == index) && (self.shouldHideSenderInformation || self.shouldHideSenderName))
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{
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currentAttributedTextMsg = [[NSMutableAttributedString alloc] initWithAttributedString:[RoomBubbleCellData timestampVerticalWhitespace]];
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[currentAttributedTextMsg appendAttributedString:componentString];
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}
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else
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{
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// Init attributed string with the first text component
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currentAttributedTextMsg = [[NSMutableAttributedString alloc] initWithAttributedString:componentString];
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}
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if (self.readReceipts[component.event.eventId].count)
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{
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// Add vertical whitespace in case of read receipts
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[currentAttributedTextMsg appendAttributedString:[RoomBubbleCellData readReceiptVerticalWhitespace]];
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}
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// The first non empty component has been handled.
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break;
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}
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}
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for (index++; index < bubbleComponents.count; index++)
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{
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component = bubbleComponents[index];
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componentString = component.attributedTextMessage;
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if (componentString)
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{
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[currentAttributedTextMsg appendAttributedString:[MXKRoomBubbleCellDataWithAppendingMode messageSeparator]];
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// Check whether another component than this one is selected
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if (selectedComponentIndex != NSNotFound && selectedComponentIndex != index && componentString.length)
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{
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// Apply alpha to blur this component
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NSMutableAttributedString *customComponentString = [[NSMutableAttributedString alloc] initWithAttributedString:componentString];
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UIColor *color = [componentString attribute:NSForegroundColorAttributeName atIndex:0 effectiveRange:nil];
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color = [color colorWithAlphaComponent:0.2];
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[customComponentString addAttribute:NSForegroundColorAttributeName value:color range:NSMakeRange(0, customComponentString.length)];
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componentString = customComponentString;
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}
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// Check whether the timestamp is displayed
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if (selectedComponentIndex == index || lastMessageIndex == index)
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{
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[currentAttributedTextMsg appendAttributedString:[RoomBubbleCellData timestampVerticalWhitespace]];
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}
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// Append attributed text
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[currentAttributedTextMsg appendAttributedString:componentString];
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if (self.readReceipts[component.event.eventId].count)
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{
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// Add vertical whitespace in case of read receipts
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[currentAttributedTextMsg appendAttributedString:[RoomBubbleCellData readReceiptVerticalWhitespace]];
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}
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}
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}
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return currentAttributedTextMsg;
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}
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- (void)refreshBubbleComponentsPosition
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{
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// CAUTION: This method must be called on the main thread.
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@synchronized(bubbleComponents)
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{
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// Check whether there is at least one component.
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if (bubbleComponents.count)
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{
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BOOL hasReadReceipts = NO;
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// Set position of the first component
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CGFloat positionY = (self.attachment == nil || self.attachment.type == MXKAttachmentTypeFile || self.attachment.type == MXKAttachmentTypeAudio) ? MXKROOMBUBBLECELLDATA_TEXTVIEW_DEFAULT_VERTICAL_INSET : 0;
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MXKRoomBubbleComponent *component;
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NSUInteger index = 0;
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for (; index < bubbleComponents.count; index++)
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{
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// Compute the vertical position for next component
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component = [bubbleComponents objectAtIndex:index];
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component.position = CGPointMake(0, positionY);
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if (component.attributedTextMessage)
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{
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hasReadReceipts = (self.readReceipts[component.event.eventId].count > 0);
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break;
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}
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}
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// Check whether the position of other components need to be refreshed
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if (!self.attachment && index < bubbleComponents.count)
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{
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NSMutableAttributedString *attributedString;
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NSInteger selectedComponentIndex = self.selectedComponentIndex;
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NSInteger lastMessageIndex = self.containsLastMessage ? self.mostRecentComponentIndex : NSNotFound;
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// Check whether the timestamp is displayed for this first component, and check whether a vertical whitespace is required
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if ((selectedComponentIndex == index || lastMessageIndex == index) && (self.shouldHideSenderInformation || self.shouldHideSenderName))
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{
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attributedString = [[NSMutableAttributedString alloc] initWithAttributedString:[RoomBubbleCellData timestampVerticalWhitespace]];
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[attributedString appendAttributedString:component.attributedTextMessage];
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}
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else
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{
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// Init attributed string with the first text component
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attributedString = [[NSMutableAttributedString alloc] initWithAttributedString:component.attributedTextMessage];
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}
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// Vertical whitespace is added in case of read receipts
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if (hasReadReceipts)
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{
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[attributedString appendAttributedString:[RoomBubbleCellData readReceiptVerticalWhitespace]];
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}
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[attributedString appendAttributedString:[MXKRoomBubbleCellDataWithAppendingMode messageSeparator]];
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for (index++; index < bubbleComponents.count; index++)
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{
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// Compute the vertical position for next component
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component = [bubbleComponents objectAtIndex:index];
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if (component.attributedTextMessage)
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{
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// Prepare its attributed string by considering potential vertical margin required to display timestamp.
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NSAttributedString *componentString;
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if (selectedComponentIndex == index || lastMessageIndex == index)
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{
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NSMutableAttributedString *componentAttributedString = [[NSMutableAttributedString alloc] initWithAttributedString:[RoomBubbleCellData timestampVerticalWhitespace]];
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[componentAttributedString appendAttributedString:component.attributedTextMessage];
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componentString = componentAttributedString;
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}
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else
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{
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componentString = component.attributedTextMessage;
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}
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// Append this attributed string.
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[attributedString appendAttributedString:componentString];
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// Compute the height of the resulting string.
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CGFloat cumulatedHeight = [self rawTextHeight:attributedString];
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// Deduce the position of the beginning of this component.
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positionY = MXKROOMBUBBLECELLDATA_TEXTVIEW_DEFAULT_VERTICAL_INSET + (cumulatedHeight - [self rawTextHeight:componentString]);
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component.position = CGPointMake(0, positionY);
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// Add vertical whitespace in case of read receipts.
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if (self.readReceipts[component.event.eventId].count)
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{
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[attributedString appendAttributedString:[RoomBubbleCellData readReceiptVerticalWhitespace]];
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}
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[attributedString appendAttributedString:[MXKRoomBubbleCellDataWithAppendingMode messageSeparator]];
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}
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else
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{
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component.position = CGPointMake(0, positionY);
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}
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}
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}
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}
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}
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}
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- (void)setContainsLastMessage:(BOOL)containsLastMessage
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{
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// Check whether there is something to do
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if (_containsLastMessage || containsLastMessage)
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{
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// Update flag
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_containsLastMessage = containsLastMessage;
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// Recompute the text message layout
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self.attributedTextMessage = nil;
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}
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}
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- (void)setSelectedEventId:(NSString *)selectedEventId
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{
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// Check whether there is something to do
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if (_selectedEventId || selectedEventId.length)
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{
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// Update flag
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_selectedEventId = selectedEventId;
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// Recompute the text message layout
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self.attributedTextMessage = nil;
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}
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}
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- (NSInteger)oldestComponentIndex
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{
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// Update the related component index
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NSInteger oldestComponentIndex = NSNotFound;
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NSArray *components = self.bubbleComponents;
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NSInteger index = 0;
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while (index < components.count)
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{
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MXKRoomBubbleComponent *component = components[index];
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if (component.attributedTextMessage && component.date)
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{
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oldestComponentIndex = index;
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break;
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}
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index++;
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}
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return oldestComponentIndex;
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}
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- (NSInteger)mostRecentComponentIndex
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{
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// Update the related component index
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NSInteger mostRecentComponentIndex = NSNotFound;
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NSArray *components = self.bubbleComponents;
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NSInteger index = components.count;
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while (index--)
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{
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MXKRoomBubbleComponent *component = components[index];
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if (component.attributedTextMessage && component.date)
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{
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mostRecentComponentIndex = index;
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break;
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}
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}
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return mostRecentComponentIndex;
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}
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- (NSInteger)selectedComponentIndex
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{
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// Update the related component index
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NSInteger selectedComponentIndex = NSNotFound;
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if (_selectedEventId)
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{
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NSArray *components = self.bubbleComponents;
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NSInteger index = components.count;
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while (index--)
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{
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MXKRoomBubbleComponent *component = components[index];
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if ([component.event.eventId isEqualToString:_selectedEventId])
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{
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selectedComponentIndex = index;
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break;
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}
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}
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}
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return selectedComponentIndex;
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}
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#pragma mark -
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+ (NSAttributedString *)timestampVerticalWhitespace
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{
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@synchronized(self)
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{
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if (timestampVerticalWhitespace == nil)
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{
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timestampVerticalWhitespace = [[NSAttributedString alloc] initWithString:@"\n" attributes:@{NSForegroundColorAttributeName : [UIColor blackColor],
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NSFontAttributeName: [UIFont systemFontOfSize:12]}];
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}
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}
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return timestampVerticalWhitespace;
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}
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+ (NSAttributedString *)readReceiptVerticalWhitespace
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{
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@synchronized(self)
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{
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if (readReceiptVerticalWhitespace == nil)
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{
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readReceiptVerticalWhitespace = [[NSAttributedString alloc] initWithString:@"\n\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 readReceiptVerticalWhitespace;
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}
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- (BOOL)hasSameSenderAsBubbleCellData:(id<MXKRoomBubbleCellDataStoring>)bubbleCellData
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{
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if (self.tag == RoomBubbleCellDataTagMembership || bubbleCellData.tag == RoomBubbleCellDataTagMembership)
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{
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// We do not want to merge membership event cells with other cell types
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return NO;
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}
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return [super hasSameSenderAsBubbleCellData:bubbleCellData];
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}
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- (BOOL)addEvent:(MXEvent*)event andRoomState:(MXRoomState*)roomState
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{
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if (self.tag == RoomBubbleCellDataTagMembership || event.eventType == MXEventTypeRoomMember)
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{
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// One single bubble per membership event
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return NO;
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}
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// Update read receipts for this bubble
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self.readReceipts[event.eventId] = [roomDataSource.room getEventReceipts:event.eventId sorted:YES];
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return [super addEvent:event andRoomState:roomState];
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}
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@end
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Reference in New Issue
Block a user