Room context preview dismissed unexpectedly (#5993)

- fixed

Riot/Modules/MatrixKit/Controllers/MXKRecentListViewController.h

@@ -59,6 +59,12 @@ limitations under the License.
      The fake top view displayed in case of vertical bounce.
      */
     __weak UIView *topview;
+    
+    /**
+     `isRefreshNeeded` is set to `YES` if an update of the datasource has been triggered but the UI has not been updated.
+     It's set to `NO` after a refresh of the UI.
+     */
+    BOOL isRefreshNeeded;
 }
 
 @property (weak, nonatomic) IBOutlet UISearchBar *recentsSearchBar;
@@ -83,6 +89,11 @@ limitations under the License.
  */
 @property (nonatomic) BOOL enableBarButtonSearch;
 
+/**
+ Enabled or disabled the UI update after recents syncs. Default YES.
+ */
+@property (nonatomic, getter=isRecentsUpdateEnabled) BOOL recentsUpdateEnabled;
+
 #pragma mark - Class methods
 
 /**

Riot/Modules/MatrixKit/Controllers/MXKRecentListViewController.m

@@ -83,6 +83,7 @@
 {
     [super finalizeInit];
     
+    _recentsUpdateEnabled = YES;
     _enableBarButtonSearch = YES;
 }
 
@@ -169,6 +170,8 @@
     
     // Observe the server sync
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onSyncNotification) name:kMXSessionDidSyncNotification object:nil];
+    
+    self.recentsUpdateEnabled = YES;
 }
 
 - (void)viewWillDisappear:(BOOL)animated
@@ -319,6 +322,10 @@
 
 - (void)refreshRecentsTable
 {
+    if (!self.recentsUpdateEnabled) return;
+    
+    isRefreshNeeded = NO;
+    
     // For now, do a simple full reload
     [self.recentsTableView reloadData];
 }
@@ -330,6 +337,16 @@
     [self.view setNeedsUpdateConstraints];
 }
 
+- (void)setRecentsUpdateEnabled:(BOOL)activeUpdate
+{
+    _recentsUpdateEnabled = activeUpdate;
+    
+    if (_recentsUpdateEnabled && isRefreshNeeded)
+    {
+        [self refreshRecentsTable];
+    }
+}
+
 #pragma mark - Action
 
 - (IBAction)search:(id)sender
@@ -385,6 +402,12 @@
 
 - (void)dataSource:(MXKDataSource *)dataSource didCellChange:(id)changes
 {
+    if (!_recentsUpdateEnabled)
+    {
+        isRefreshNeeded = YES;
+        return;
+    }
+    
     // For now, do a simple full reload
     [self refreshRecentsTable];
 }