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Chat room read marker:

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- Do not launch the read marker animation if the marker is outside the visible area.
This commit is contained in:
Giom Foret
2017-06-07 13:07:44 +02:00
parent b5a04bcbf3
commit ee7afa86f2
1 changed files with 17 additions and 11 deletions
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Riot/ViewController/RoomViewController.m
+17 -11
View File
@@ -3443,18 +3443,24 @@
if (readMarkerTableViewCell && isAppeared)
{
// Check whether the read marker is visible
CGFloat contentTopOffsetY = self.bubblesTableView.contentOffset.y + self.bubblesTableView.contentInset.top;
if (contentTopOffsetY <= readMarkerTableViewCell.frame.origin.y + readMarkerTableViewCell.readMarkerView.frame.origin.y)
CGFloat contentTopPosY = self.bubblesTableView.contentOffset.y + self.bubblesTableView.contentInset.top;
CGFloat readMarkerViewPosY = readMarkerTableViewCell.frame.origin.y + readMarkerTableViewCell.readMarkerView.frame.origin.y;
if (contentTopPosY <= readMarkerViewPosY)
{
// Launch animation
[self animateReadMarkerView];
// Disable the read marker display when it has been rendered once.
self.roomDataSource.showReadMarker = NO;
[self refreshJumpToLastUnreadBannerDisplay];
// Update the read marker position according the events acknowledgement in this view controller.
self.updateRoomReadMarker = YES;
// Compute the max vertical position visible according to contentOffset
CGFloat contentBottomPosY = self.bubblesTableView.contentOffset.y + self.bubblesTableView.frame.size.height - self.bubblesTableView.contentInset.bottom;
if (readMarkerViewPosY <= contentBottomPosY)
{
// Launch animation
[self animateReadMarkerView];
// Disable the read marker display when it has been rendered once.
self.roomDataSource.showReadMarker = NO;
[self refreshJumpToLastUnreadBannerDisplay];
// Update the read marker position according the events acknowledgement in this view controller.
self.updateRoomReadMarker = YES;
}
}
}
}