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RoomDataSource: Add thread safety instructions for bubbles array in insertRoomCreationIntroCellDataIfNeeded.

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This commit is contained in:
SBiOSoftWhare
2021-02-23 08:47:50 +01:00
parent a30e7e08f2
commit 75414f8ebe
1 changed files with 35 additions and 24 deletions
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Riot/Modules/Room/DataSources/RoomDataSource.m
+35 -24
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@@ -997,7 +997,7 @@
// Insert the room creation intro cell at the begining
- (void)insertRoomCreationIntroCellDataIfNeeded
{
if (self.showRoomCreationCell)
@synchronized(bubbles)
{
NSUInteger existingRoomCreationCellDataIndex = [self roomBubbleDataIndexWithTag:RoomBubbleCellDataTagRoomCreationIntro];
@@ -1006,40 +1006,51 @@
[bubbles removeObjectAtIndex:existingRoomCreationCellDataIndex];
}
NSUInteger roomCreationConfigCellDataIndex = [self roomBubbleDataIndexWithTag:RoomBubbleCellDataTagRoomCreateConfiguration];
// Only add room creation intro cell if `bubbles` array contains the room creation event
if (roomCreationConfigCellDataIndex != NSNotFound)
if (self.showRoomCreationCell)
{
MXEvent *event = [MXEvent new];
MXRoomState *roomState = [MXRoomState new];
RoomBubbleCellData *roomBubbleCellData = [[RoomBubbleCellData alloc] initWithEvent:event andRoomState:roomState andRoomDataSource:self];
roomBubbleCellData.tag = RoomBubbleCellDataTagRoomCreationIntro;
NSUInteger roomCreationConfigCellDataIndex = [self roomBubbleDataIndexWithTag:RoomBubbleCellDataTagRoomCreateConfiguration];
[bubbles insertObject:roomBubbleCellData atIndex:0];
// Only add room creation intro cell if `bubbles` array contains the room creation event
if (roomCreationConfigCellDataIndex != NSNotFound)
{
RoomBubbleCellData *roomBubbleCellData = self.roomCreationCellData;
self.roomCreationCellData = roomBubbleCellData;
if (!roomBubbleCellData)
{
MXEvent *event = [MXEvent new];
MXRoomState *roomState = [MXRoomState new];
RoomBubbleCellData *roomBubbleCellData = [[RoomBubbleCellData alloc] initWithEvent:event andRoomState:roomState andRoomDataSource:self];
roomBubbleCellData.tag = RoomBubbleCellDataTagRoomCreationIntro;
self.roomCreationCellData = roomBubbleCellData;
}
[bubbles insertObject:roomBubbleCellData atIndex:0];
}
}
else
{
self.roomCreationCellData = nil;
}
}
else
{
self.roomCreationCellData = nil;
}
}
- (NSUInteger)roomBubbleDataIndexWithTag:(RoomBubbleCellDataTag)tag
{
return [bubbles indexOfObjectPassingTest:^BOOL(id<MXKRoomBubbleCellDataStoring> _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:RoomBubbleCellData.class])
{
RoomBubbleCellData *roomBubbleCellData = (RoomBubbleCellData*)obj;
if (roomBubbleCellData.tag == tag)
@synchronized(bubbles)
{
return [bubbles indexOfObjectPassingTest:^BOOL(id<MXKRoomBubbleCellDataStoring> _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
if ([obj isKindOfClass:RoomBubbleCellData.class])
{
return YES;
RoomBubbleCellData *roomBubbleCellData = (RoomBubbleCellData*)obj;
if (roomBubbleCellData.tag == tag)
{
return YES;
}
}
}
return NO;
}];
return NO;
}];
}
}
@end