add simple formatting and maximise support for replacement toolbar

RiotSwiftUI/Modules/Room/Composer/MockComposerScreenState.swift

@@ -0,0 +1,52 @@
+//
+// Copyright 2022 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
+import WysiwygComposer
+import SwiftUI
+
+@available(iOS 15.0, *)
+enum MockComposerScreenState: MockScreenState, CaseIterable {
+    case composer
+    
+    var screenType: Any.Type {
+        Composer.self
+    }
+    
+//    var screenContainer: some View {
+//        VStack{
+//            Spacer()
+//            Composer(viewModel: viewModel)
+//        }
+//    }
+    var screenView: ([Any], AnyView)  {
+        let viewModel = WysiwygComposerViewModel()
+        
+        return (
+            [viewModel],
+            AnyView(VStack{
+                Spacer()
+                Composer(viewModel: viewModel)
+            }.frame(
+                minWidth: 0,
+                maxWidth: .infinity,
+                minHeight: 0,
+                maxHeight: .infinity,
+                alignment: .topLeading
+            ))
+        )
+    }
+}