Jitsi widget: RoomVC: Show it in the banner when there is an active jitsi conference in a room.

Riot/Model/Room/RoomDataSource.h

@@ -17,6 +17,8 @@
 
 #import <MatrixKit/MatrixKit.h>
 
+#import "WidgetManager.h"
+
 /**
  The data source for `RoomViewController` in Vector.
  */
@@ -32,4 +34,11 @@
  */
 @property(nonatomic) BOOL markTimelineInitialEvent;
 
+/**
+ Check if there is an active jitsi widget in the room and return it.
+
+ @return a widget representating the active jitsi conference in the room. Else, nil.
+ */
+- (Widget *)jitsiWidget;
+
 @end

Riot/Model/Room/RoomDataSource.m

@@ -390,4 +390,21 @@
     _selectedEventId = selectedEventId;
 }
 
+- (Widget *)jitsiWidget
+{
+    Widget *jitsiWidget;
+
+    NSArray<Widget*> *widgets = [[WidgetManager sharedManager] widgetsInRoom:self.room];
+    for (Widget *widget in widgets)
+    {
+        if ([widget.type isEqualToString:kWidgetTypeJitsi])
+        {
+            jitsiWidget = widget;
+            break;
+        }
+    }
+
+    return jitsiWidget;
+}
+
 @end

Riot/ViewController/RoomViewController.m

@@ -47,6 +47,8 @@
 
 #import "ReadReceiptsViewController.h"
 
+#import "JitsiViewController.h"
+
 #import "RoomEmptyBubbleCell.h"
 
 #import "RoomIncomingTextMsgBubbleCell.h"
@@ -96,6 +98,7 @@
 
 #import "AvatarGenerator.h"
 #import "Tools.h"
+#import "WidgetManager.h"
 
 #import "GBDeviceInfo_iOS.h"
 
@@ -3275,6 +3278,8 @@
         {
             [roomActivitiesView removeGestureRecognizer:roomActivitiesView.gestureRecognizers[0]];
         }
+
+        Widget *jitsiWidget = [customizedRoomDataSource jitsiWidget];
         
         if ([AppDelegate theDelegate].isOffline)
         {
@@ -3305,6 +3310,26 @@
                 }];
             }
         }
+        else if (jitsiWidget)
+        {
+            // The room has an active jitsi widget, show it in the banner
+            [roomActivitiesView displayOngoingJitsiConference:^{
+
+                // Present the Jitsi view controller
+                AppDelegate *appDelegate = [AppDelegate theDelegate];
+                JitsiViewController *jitsiViewController = [JitsiViewController jitsiViewControllerForWidget:jitsiWidget];
+
+                if (appDelegate.window.rootViewController.presentedViewController)
+                {
+                    [appDelegate.window.rootViewController.presentedViewController presentViewController:jitsiViewController animated:YES completion:nil];
+                }
+                else
+                {
+                    [appDelegate.window.rootViewController presentViewController:jitsiViewController animated:YES completion:nil];
+                }
+
+            }];
+        }
         else if ([self checkUnsentMessages] == NO)
         {
             // Show "scroll to bottom" icon when the most recent message is not visible,

Riot/Views/RoomActivitiesView/RoomActivitiesView.h

@@ -66,6 +66,13 @@
  */
 - (void)displayOngoingConferenceCall:(void (^)(BOOL video))ongoingConferenceCallPressed;
 
+/**
+ Display an ongoing jitsi conference call.
+ Replace the current notification if any.
+
+ @param ongoingJitsiConferencePressed the block called when the user clicks on the banner.
+ */
+- (void)displayOngoingJitsiConference:(void (^)())ongoingJitsiConferencePressed;
 
 /**
  Display a "scroll to bottom" icon.

Riot/Views/RoomActivitiesView/RoomActivitiesView.m

@@ -242,6 +242,50 @@
     [self checkHeight:YES];
 }
 
+- (void)displayOngoingJitsiConference:(void (^)())ongoingJitsiConferencePressed
+{
+    [self reset];
+
+    // @TODO: use dedicated strings
+    objc_setAssociatedObject(self.messageTextView, "onOngoingConferenceCallPressed", [ongoingJitsiConferencePressed copy], OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+
+    // Build the string to display in the banner
+    NSString *onGoingConferenceCall =
+    [NSString stringWithFormat:NSLocalizedStringFromTable(@"room_ongoing_conference_call", @"Vector", nil),
+     NSLocalizedStringFromTable(@"voice", @"Vector", nil),
+     NSLocalizedStringFromTable(@"video", @"Vector", nil)];
+
+    NSMutableAttributedString *onGoingConferenceCallAttibutedString = [[NSMutableAttributedString alloc] initWithString:onGoingConferenceCall];
+
+    // Add a link on the "voice" string
+    NSRange voiceRange = [onGoingConferenceCall rangeOfString:NSLocalizedStringFromTable(@"voice", @"Vector", nil)];
+    [onGoingConferenceCallAttibutedString addAttribute:NSUnderlineStyleAttributeName value:@(NSUnderlineStyleSingle) range:voiceRange];
+    [onGoingConferenceCallAttibutedString addAttribute:NSLinkAttributeName value:@"onOngoingConferenceCallWithVoicePressed" range:voiceRange];
+
+    // Add a link on the "video" string
+    NSRange videoRange = [onGoingConferenceCall rangeOfString:NSLocalizedStringFromTable(@"video", @"Vector", nil)];
+    [onGoingConferenceCallAttibutedString addAttribute:NSUnderlineStyleAttributeName value:@(NSUnderlineStyleSingle) range:videoRange];
+    [onGoingConferenceCallAttibutedString addAttribute:NSLinkAttributeName value:@"onOngoingConferenceCallWithVideoPressed" range:videoRange];
+
+    // Display the string in white on pink red
+    NSRange wholeString = NSMakeRange(0, onGoingConferenceCallAttibutedString.length);
+    [onGoingConferenceCallAttibutedString addAttribute:NSForegroundColorAttributeName value:UIColor.whiteColor range:wholeString];
+    [onGoingConferenceCallAttibutedString addAttribute:NSBackgroundColorAttributeName value:kRiotColorPinkRed range:wholeString];
+    [onGoingConferenceCallAttibutedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:15] range:wholeString];
+
+    self.messageTextView.attributedText = onGoingConferenceCallAttibutedString;
+    self.messageTextView.tintColor = UIColor.whiteColor;
+    self.messageTextView.hidden = NO;
+
+    self.backgroundColor = kRiotColorPinkRed;
+    self.messageTextView.backgroundColor = kRiotColorPinkRed;
+
+    // Hide the separator to display correctly the red pink conf call banner
+    self.separatorView.hidden = YES;
+    
+    [self checkHeight:YES];
+}
+
 - (void)displayScrollToBottomIcon:(NSUInteger)newMessagesCount onIconTapGesture:(void (^)(void))onIconTapGesture
 {
     if (newMessagesCount)