mirror of
https://github.com/vector-im/element-ios.git
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166 lines
6.3 KiB
Objective-C
166 lines
6.3 KiB
Objective-C
/*
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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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@implementation RoomBubbleCellData
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#pragma mark -
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- (NSAttributedString*)attributedTextMessage
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{
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if (!attributedTextMessage.length && bubbleComponents.count)
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{
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if (super.showBubbleDateTime == NO)
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{
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return super.attributedTextMessage;
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}
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else
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{
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// Create attributed string by adding each component timestamp
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NSMutableAttributedString *currentAttributedTextMsg;
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NSAttributedString *dateTimeAttributedStr;
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NSDictionary *attributes;
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if ([self.eventFormatter isKindOfClass:[EventFormatter class]])
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{
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attributes = [(EventFormatter*)self.eventFormatter stringAttributesForEventTimestamp];
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}
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for (MXKRoomBubbleComponent* component in bubbleComponents)
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{
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if (!currentAttributedTextMsg)
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{
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currentAttributedTextMsg = [[NSMutableAttributedString alloc] initWithAttributedString:component.attributedTextMessage];
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}
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else
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{
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// Append attributed text
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[currentAttributedTextMsg appendAttributedString:[MXKRoomBubbleCellDataWithAppendingMode messageSeparator]];
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[currentAttributedTextMsg appendAttributedString:component.attributedTextMessage];
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}
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// Append component timestamp
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NSString *dateTimeStr = [NSString stringWithFormat:@" %@", [self.eventFormatter dateStringFromDate:component.date withTime:YES]];
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if (attributes)
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{
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dateTimeAttributedStr = [[NSAttributedString alloc] initWithString:dateTimeStr attributes:attributes];
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}
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else
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{
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dateTimeAttributedStr = [[NSAttributedString alloc] initWithString:dateTimeStr];
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}
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[currentAttributedTextMsg appendAttributedString:dateTimeAttributedStr];
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}
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attributedTextMessage = currentAttributedTextMsg;
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}
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}
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return attributedTextMessage;
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}
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- (void)setShowBubbleDateTime:(BOOL)showBubbleDateTime
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{
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if (super.showBubbleDateTime != showBubbleDateTime)
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{
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super.showBubbleDateTime = showBubbleDateTime;
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// Attributed string must be rebuilt
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self.attributedTextMessage = nil;
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}
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}
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#pragma mark -
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- (void)prepareBubbleComponentsPosition
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{
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if (super.showBubbleDateTime == NO)
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{
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[super prepareBubbleComponentsPosition];
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}
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else
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{
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// We will let super prepare only the first component position by disabling shouldUpdateComponentsPosition flag
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BOOL savedShouldUpdateComponentsPosition = shouldUpdateComponentsPosition;
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shouldUpdateComponentsPosition = NO;
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[super prepareBubbleComponentsPosition];
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// Check whether the position of other components need to be refreshed
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if (self.attachment || !savedShouldUpdateComponentsPosition || bubbleComponents.count < 2)
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{
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return;
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}
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// Compute height of the first text component by considering displayed timestamp
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NSAttributedString *dateTimeAttributedStr;
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NSDictionary *attributes;
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if ([self.eventFormatter isKindOfClass:[EventFormatter class]])
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{
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attributes = [(EventFormatter*)self.eventFormatter stringAttributesForEventTimestamp];
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}
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MXKRoomBubbleComponent *component = [bubbleComponents firstObject];
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NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithAttributedString:component.attributedTextMessage];
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// Append component timestamp
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NSString *dateTimeStr = [NSString stringWithFormat:@" %@", [self.eventFormatter dateStringFromDate:component.date withTime:YES]];
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if (attributes)
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{
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dateTimeAttributedStr = [[NSAttributedString alloc] initWithString:dateTimeStr attributes:attributes];
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}
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else
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{
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dateTimeAttributedStr = [[NSAttributedString alloc] initWithString:dateTimeStr];
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}
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[attributedString appendAttributedString:dateTimeAttributedStr];
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CGFloat componentHeight = [self rawTextHeight:attributedString];
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// Set position for each other component
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CGFloat positionY = component.position.y;
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CGFloat cumulatedHeight = 0;
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for (NSUInteger index = 1; index < bubbleComponents.count; index++)
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{
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cumulatedHeight += componentHeight;
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positionY += componentHeight;
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component = [bubbleComponents objectAtIndex:index];
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component.position = CGPointMake(0, positionY);
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// Compute height of the current component
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[attributedString appendAttributedString:[MXKRoomBubbleCellDataWithAppendingMode messageSeparator]];
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[attributedString appendAttributedString:component.attributedTextMessage];
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dateTimeStr = [NSString stringWithFormat:@" %@", [self.eventFormatter dateStringFromDate:component.date withTime:YES]];
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if (attributes)
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{
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dateTimeAttributedStr = [[NSAttributedString alloc] initWithString:dateTimeStr attributes:attributes];
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}
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else
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{
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dateTimeAttributedStr = [[NSAttributedString alloc] initWithString:dateTimeStr];
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}
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[attributedString appendAttributedString:dateTimeAttributedStr];
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componentHeight = [self rawTextHeight:attributedString] - cumulatedHeight;
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}
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}
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}
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@end
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