Rename TableViewHeaderFooterView

Riot/Modules/Common/SectionHeaders/TextViewTableViewHeaderFooterView.swift

@@ -0,0 +1,117 @@
+// 
+// Copyright 2020 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 Reusable
+
+protocol TextViewTableViewHeaderFooterViewDelegate: UITextViewDelegate {
+    
+}
+
+class TextViewTableViewHeaderFooterView: UITableViewHeaderFooterView {
+    
+    // MARK - Private
+    private var _textView: UITextView?
+    
+    private var textViewLeftConstraint: NSLayoutConstraint?
+    private var textViewTopConstraint: NSLayoutConstraint?
+    private var textViewRightConstraint: NSLayoutConstraint?
+    private var textViewBottomConstraint: NSLayoutConstraint?
+    
+    // MARK - Public
+    
+    weak var delegate: TextViewTableViewHeaderFooterViewDelegate?
+    
+    var textViewInsets: UIEdgeInsets = UIEdgeInsets(top: 8, left: 16, bottom: 8, right: 16) {
+        didSet {
+            setNeedsUpdateConstraints()
+        }
+    }
+    
+    /// Will be created if accessed
+    var textView: UITextView {
+        //  hide text label if textView accessed
+        textLabel?.isHidden = true
+        
+        if let _textView = _textView {
+            return _textView
+        }
+        
+        let view = UITextView()
+        view.backgroundColor = .clear
+        view.translatesAutoresizingMaskIntoConstraints = false
+        view.delegate = self
+        view.isEditable = false
+        view.isScrollEnabled = false
+        view.scrollsToTop = false
+        view.textContainerInset = .zero
+        view.contentInset = .zero
+        view.textContainer.lineFragmentPadding = 0
+        contentView.addSubview(view)
+        textViewLeftConstraint = view.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: textViewInsets.left)
+        textViewTopConstraint = view.topAnchor.constraint(equalTo: contentView.topAnchor, constant: textViewInsets.top)
+        textViewRightConstraint = contentView.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: textViewInsets.right)
+        textViewBottomConstraint = contentView.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: textViewInsets.bottom)
+        textViewLeftConstraint?.isActive = true
+        textViewTopConstraint?.isActive = true
+        textViewRightConstraint?.isActive = true
+        textViewBottomConstraint?.isActive = true
+        _textView = view
+        return view
+    }
+    
+    override func updateConstraints() {
+        super.updateConstraints()
+        
+        textViewLeftConstraint?.constant = textViewInsets.left
+        textViewTopConstraint?.constant = textViewInsets.top
+        textViewRightConstraint?.constant = textViewInsets.right
+        textViewBottomConstraint?.constant = textViewInsets.bottom
+    }
+    
+    override func prepareForReuse() {
+        super.prepareForReuse()
+        textViewInsets = UIEdgeInsets(top: 8, left: 16, bottom: 8, right: 16)
+    }
+    
+}
+
+extension TextViewTableViewHeaderFooterView: Reusable { }
+
+extension TextViewTableViewHeaderFooterView: Themable {
+    
+    func update(theme: Theme) {
+        contentView.backgroundColor = theme.headerBackgroundColor
+        textLabel?.textColor = theme.textSecondaryColor
+        _textView?.textColor = theme.textSecondaryColor
+        _textView?.linkTextAttributes = [NSAttributedString.Key.foregroundColor: theme.tintColor]
+    }
+    
+}
+
+extension TextViewTableViewHeaderFooterView: UITextViewDelegate {
+    
+    func textView(_ textView: UITextView, shouldInteractWith URL: URL, in characterRange: NSRange, interaction: UITextItemInteraction) -> Bool {
+        return delegate?.textView?(textView, shouldInteractWith: URL, in: characterRange, interaction: interaction) ?? (interaction == .invokeDefaultAction)
+    }
+    
+    func textViewDidChangeSelection(_ textView: UITextView) {
+        return delegate?.textViewDidChangeSelection?(textView) ?? {
+            textView.selectedRange = NSRange(location: 0, length: 0)
+            }()
+    }
+    
+}