Create incoming text message bubble cells.

Riot/Modules/Room/Views/BubbleCells/Styles/Bubble/Cells/TextMessage/Incoming/TextMessageIncomingBubbleCell.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 UIKit
+
+class TextMessageIncomingBubbleCell: TextMessageBaseBubbleCell {
+    
+    // MARK: - Constants
+    
+    // TODO: Use global constants
+    private enum BubbleMargins {
+        static let leading: CGFloat = 0
+        static let trailing: CGFloat = 80
+    }
+    
+    // MARK: - Overrides
+    
+    override func setupViews() {
+        super.setupViews()
+        
+        bubbleCellContentView?.showSenderInfo = true
+
+        self.setupBubbleConstraints()
+        self.setupDecorationConstraints()
+    }
+    
+    override func update(theme: Theme) {
+        super.update(theme: theme)
+        
+        self.textMessageContentView?.bubbleBackgroundView?.backgroundColor = theme.roomCellIncomingBubbleBackgroundColor
+    }
+    
+    // MARK: - Private
+    
+    private func setupBubbleConstraints() {
+        
+        self.textMessageContentView?.bubbleBackgroundViewLeadingConstraint.constant = BubbleMargins.leading
+        
+        let innerContentViewTrailingMargin = self.bubbleCellContentView?.innerContentViewTrailingConstraint.constant ?? 0
+        
+        self.textMessageContentView?.bubbleBackgroundViewTrailingConstraint.constant = BubbleMargins.trailing - innerContentViewTrailingMargin
+        
+    }
+    
+    private func setupDecorationConstraints() {
+        
+        self.setupReactionsContentViewContraints()
+    }
+    
+    private func setupReactionsContentViewContraints () {
+        
+        self.bubbleCellContentView?.reactionsContentViewTrailingConstraint.constant = BubbleMargins.trailing
+    }
+}

Riot/Modules/Room/Views/BubbleCells/Styles/Bubble/Cells/TextMessage/Incoming/TextMessageIncomingWithPaginationTitleBubbleCell.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 UIKit
+
+class TextMessageIncomingWithPaginationTitleBubbleCell: TextMessageIncomingBubbleCell {
+    
+    override func setupViews() {
+        super.setupViews()
+        
+        bubbleCellContentView?.showPaginationTitle = true
+    }
+}

Riot/Modules/Room/Views/BubbleCells/Styles/Bubble/Cells/TextMessage/Incoming/TextMessageIncomingWithoutSenderInfoBubbleCell.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 UIKit
+
+class TextMessageIncomingWithoutSenderInfoBubbleCell: TextMessageIncomingBubbleCell {
+    
+    override func setupViews() {
+        super.setupViews()
+        
+        bubbleCellContentView?.showSenderInfo = false        
+    }
+}