Add RoomPresentationParameters and RoomPreviewPresentationParameters to display a room or room preview with identifiers and presentation configuration.

Riot/Modules/Application/RoomPresentationParameters.swift

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+// 
+// 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
+
+/// Presentation parameters to display a room with a provided identifier in a specific matrix session.
+@objcMembers
+class RoomPresentationParameters: NSObject {
+    
+    // MARK: - Properties
+
+    /// The room identifier
+    let roomId: String
+    
+    /// If not nil, the room will be opened on this event.
+    let eventId: String?
+    
+    /// The Matrix session in which the room should be available.
+    let mxSession: MXSession
+    
+    /// Indicate to pop to home and restore initial view hierarchy
+    let restoreInitialDisplay: Bool
+    
+    /// Indicate to stack above visible views
+    /// If this variable is set to true `restoreInitialDisplay` should be set to false to have effect
+    let stackAboveVisibleViews: Bool
+    
+    // MARK: - Setup
+    
+    init(roomId: String,
+         eventId: String?,
+         mxSession: MXSession,
+         restoreInitialDisplay: Bool,
+         stackAboveVisibleViews: Bool) {
+        self.roomId = roomId
+        self.eventId = eventId
+        self.mxSession = mxSession
+        self.restoreInitialDisplay = restoreInitialDisplay
+        self.stackAboveVisibleViews = stackAboveVisibleViews
+        
+        super.init()
+    }
+}

Riot/Modules/Application/RoomPreviewPresentationParameters.swift

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+// 
+// 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
+
+/// Presentation parameters to display a preview of a room that is unknown for the user.
+/// This room can come from an email invitation link or a simple link to a room.
+@objcMembers
+class RoomPreviewPresentationParameters: RoomPresentationParameters {
+    
+    // MARK: - Properties
+
+    /// The data for the room preview
+    let previewData: RoomPreviewData
+    
+    // MARK: - Setup
+    
+    init(previewData: RoomPreviewData, restoreInitialDisplay: Bool, stackAboveVisibleViews: Bool) {
+        self.previewData = previewData
+        
+        super.init(roomId: previewData.roomId,
+                   eventId: previewData.eventId,
+                   mxSession: previewData.mxSession,
+                   restoreInitialDisplay: restoreInitialDisplay,
+                   stackAboveVisibleViews: stackAboveVisibleViews)
+    }
+}