Invite to Space in room landing #5225

- added room option bottom sheet

Riot/Modules/Room/ParticipantsInviteModal/ContactsPicker/RoomInviteViewController.swift

@@ -0,0 +1,59 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+class RoomInviteViewController: ContactsTableViewController {
+    
+    var room: MXRoom?
+    var roomAlias: String?
+    
+    private lazy var shareLinkPresenter: ShareInviteLinkPresenter = {
+        ShareInviteLinkPresenter()
+    }()
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        roomAlias = room?.summary?.aliases?.first
+        setupShareInviteLinkHeader()
+    }
+    
+    private func setupShareInviteLinkHeader() {
+        guard roomAlias != nil, RiotSettings.shared.allowInviteExernalUsers else {
+            contactsTableView.tableHeaderView = nil
+            return
+        }
+        
+        let inviteHeaderView = ShareInviteLinkHeaderView.instantiate()
+        inviteHeaderView.delegate = self
+        contactsTableView.tableHeaderView = inviteHeaderView
+    }
+    
+    private func showInviteLink(from sourceView: UIView?) {
+        guard let room = room else {
+            return
+        }
+        shareLinkPresenter.present(for: room, from: self, sourceView: sourceView, animated: true)
+    }
+}
+
+// MARK: - ShareInviteLinkHeaderViewDelegate
+extension RoomInviteViewController: ShareInviteLinkHeaderViewDelegate {
+    func shareInviteLinkHeaderView(_ headerView: ShareInviteLinkHeaderView, didTapButton button: UIButton) {
+        showInviteLink(from: button)
+    }
+}