Fix cell layout when thread root is a poll

Riot/Modules/Room/Views/BubbleCells/BaseBubbleCell/BubbleCellContentView.swift

@@ -47,6 +47,8 @@ final class BubbleCellContentView: UIView, NibLoadable {
     
     @IBOutlet weak var reactionsContainerView: UIView!
     @IBOutlet weak var reactionsContentView: UIView!
+
+    @IBOutlet weak var threadSummaryContainerView: UIView!
     
     @IBOutlet weak var bubbleOverlayContainer: UIView!
     
@@ -69,6 +71,14 @@ final class BubbleCellContentView: UIView, NibLoadable {
             self.reactionsContainerView.isHidden = !newValue
         }
     }
+
+    private var showThreadSummary: Bool {
+        get {
+            return !self.threadSummaryContainerView.isHidden
+        } set {
+            self.threadSummaryContainerView.isHidden = !newValue
+        }
+    }
     
     // MARK: Public
     
@@ -143,3 +153,27 @@ extension BubbleCellContentView: BubbleCellReactionsDisplayable {
         self.reactionsContentView.vc_removeAllSubviews()
     }
 }
+
+// MARK: - BubbleCellThreadSummaryDisplayable
+extension BubbleCellContentView: BubbleCellThreadSummaryDisplayable {
+
+    func addThreadSummaryView(_ threadSummaryView: ThreadSummaryView) {
+        self.threadSummaryContainerView.vc_removeAllSubviews()
+        self.threadSummaryContainerView.addSubview(threadSummaryView)
+        NSLayoutConstraint.activate([
+            threadSummaryView.leadingAnchor.constraint(equalTo: innerContentView.leadingAnchor),
+            threadSummaryView.topAnchor.constraint(equalTo: threadSummaryContainerView.topAnchor),
+            threadSummaryView.heightAnchor.constraint(equalToConstant: RoomBubbleCellLayout.threadSummaryViewHeight),
+            threadSummaryView.bottomAnchor.constraint(equalTo: threadSummaryContainerView.bottomAnchor),
+            threadSummaryView.trailingAnchor.constraint(lessThanOrEqualTo: threadSummaryContainerView.trailingAnchor,
+                                                        constant: -RoomBubbleCellLayout.reactionsViewRightMargin)
+        ])
+        self.showThreadSummary = true
+    }
+
+    func removeThreadSummaryView() {
+        self.showThreadSummary = false
+        self.threadSummaryContainerView.vc_removeAllSubviews()
+    }
+
+}