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396 lines
20 KiB
Swift
396 lines
20 KiB
Swift
4 years ago
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final class VisibleMessageCell : MessageCell {
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private var unloadContent: (() -> Void)?
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var albumView: MediaAlbumView?
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var mediaTextOverlayView: MediaTextOverlayView?
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// Constraints
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private lazy var headerViewTopConstraint = headerView.pin(.top, to: .top, of: self, withInset: 1)
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private lazy var profilePictureViewLeftConstraint = profilePictureView.pin(.left, to: .left, of: self, withInset: VisibleMessageCell.groupThreadHSpacing)
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private lazy var profilePictureViewWidthConstraint = profilePictureView.set(.width, to: Values.verySmallProfilePictureSize)
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private lazy var bubbleViewLeftConstraint1 = bubbleView.pin(.left, to: .right, of: profilePictureView, withInset: VisibleMessageCell.groupThreadHSpacing)
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private lazy var bubbleViewLeftConstraint2 = bubbleView.leftAnchor.constraint(greaterThanOrEqualTo: leftAnchor, constant: VisibleMessageCell.gutterSize)
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private lazy var bubbleViewTopConstraint = bubbleView.pin(.top, to: .bottom, of: authorLabel, withInset: VisibleMessageCell.authorLabelBottomSpacing)
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private lazy var bubbleViewRightConstraint1 = bubbleView.pin(.right, to: .right, of: self, withInset: -VisibleMessageCell.contactThreadHSpacing)
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private lazy var bubbleViewRightConstraint2 = bubbleView.rightAnchor.constraint(lessThanOrEqualTo: rightAnchor, constant: -VisibleMessageCell.gutterSize)
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private lazy var messageStatusImageViewTopConstraint = messageStatusImageView.pin(.top, to: .bottom, of: bubbleView, withInset: 0)
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private lazy var messageStatusImageViewWidthConstraint = messageStatusImageView.set(.width, to: VisibleMessageCell.messageStatusImageViewSize)
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private lazy var messageStatusImageViewHeightConstraint = messageStatusImageView.set(.height, to: VisibleMessageCell.messageStatusImageViewSize)
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private var positionInCluster: Position? {
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guard let viewItem = viewItem else { return nil }
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if viewItem.isFirstInCluster { return .top }
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if viewItem.isLastInCluster { return .bottom }
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return .middle
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}
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private var isOnlyMessageInCluster: Bool { viewItem?.isFirstInCluster == true && viewItem?.isLastInCluster == true }
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private var direction: Direction {
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guard let message = viewItem?.interaction as? TSMessage else { preconditionFailure() }
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switch message {
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case is TSIncomingMessage: return .incoming
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case is TSOutgoingMessage: return .outgoing
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default: preconditionFailure()
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}
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}
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private var shouldInsetHeader: Bool {
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guard let viewItem = viewItem else { preconditionFailure() }
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return (positionInCluster == .top || isOnlyMessageInCluster) && !viewItem.wasPreviousItemInfoMessage
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}
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// MARK: UI Components
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private lazy var profilePictureView: ProfilePictureView = {
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let result = ProfilePictureView()
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let size = Values.verySmallProfilePictureSize
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result.set(.height, to: size)
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result.size = size
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return result
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}()
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lazy var bubbleView: UIView = {
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let result = UIView()
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result.layer.cornerRadius = VisibleMessageCell.smallCornerRadius
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return result
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}()
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private let bubbleViewMaskLayer = CAShapeLayer()
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private lazy var headerView = UIView()
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private lazy var authorLabel: UILabel = {
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let result = UILabel()
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result.font = .boldSystemFont(ofSize: Values.smallFontSize)
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return result
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}()
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private lazy var snContentView = UIView()
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private lazy var messageStatusImageView: UIImageView = {
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let result = UIImageView()
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result.contentMode = .scaleAspectFit
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result.layer.cornerRadius = VisibleMessageCell.messageStatusImageViewSize / 2
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result.layer.masksToBounds = true
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return result
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}()
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// MARK: Settings
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private static let messageStatusImageViewSize: CGFloat = 16
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private static let authorLabelBottomSpacing: CGFloat = 4
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private static let groupThreadHSpacing: CGFloat = 12
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private static let profilePictureSize = Values.verySmallProfilePictureSize
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static let smallCornerRadius: CGFloat = 4
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static let largeCornerRadius: CGFloat = 18
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static let contactThreadHSpacing = Values.mediumSpacing
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static var gutterSize: CGFloat { groupThreadHSpacing + profilePictureSize + groupThreadHSpacing }
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private var bodyLabelTextColor: UIColor {
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switch (direction, AppModeManager.shared.currentAppMode) {
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case (.outgoing, .dark), (.incoming, .light): return .black
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default: return .white
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}
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}
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override class var identifier: String { "VisibleMessageCell" }
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// MARK: Direction & Position
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enum Direction { case incoming, outgoing }
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enum Position { case top, middle, bottom }
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// MARK: Lifecycle
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override func setUpViewHierarchy() {
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super.setUpViewHierarchy()
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isUserInteractionEnabled = true
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// Header view
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addSubview(headerView)
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headerViewTopConstraint.isActive = true
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headerView.pin([ UIView.HorizontalEdge.left, UIView.HorizontalEdge.right ], to: self)
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// Author label
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addSubview(authorLabel)
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authorLabel.pin(.top, to: .bottom, of: headerView)
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// Profile picture view
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addSubview(profilePictureView)
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profilePictureViewLeftConstraint.isActive = true
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profilePictureViewWidthConstraint.isActive = true
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profilePictureView.pin(.bottom, to: .bottom, of: self, withInset: -1)
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// Bubble view
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addSubview(bubbleView)
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bubbleViewLeftConstraint1.isActive = true
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bubbleViewTopConstraint.isActive = true
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bubbleViewRightConstraint1.isActive = true
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// Content view
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bubbleView.addSubview(snContentView)
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snContentView.pin(to: bubbleView)
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// Message status image view
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addSubview(messageStatusImageView)
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messageStatusImageViewTopConstraint.isActive = true
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messageStatusImageView.pin(.right, to: .right, of: bubbleView, withInset: -1)
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messageStatusImageView.pin(.bottom, to: .bottom, of: self, withInset: -1)
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messageStatusImageViewWidthConstraint.isActive = true
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messageStatusImageViewHeightConstraint.isActive = true
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// Remaining constraints
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authorLabel.pin(.left, to: .left, of: bubbleView, withInset: 12)
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}
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override func setUpGestureRecognizers() {
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let longPressRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(handleLongPress))
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addGestureRecognizer(longPressRecognizer)
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let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleTap))
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tapGestureRecognizer.numberOfTapsRequired = 1
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addGestureRecognizer(tapGestureRecognizer)
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let doubleTapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleDoubleTap))
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doubleTapGestureRecognizer.numberOfTapsRequired = 2
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addGestureRecognizer(doubleTapGestureRecognizer)
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tapGestureRecognizer.require(toFail: doubleTapGestureRecognizer)
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}
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// MARK: Updating
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override func update() {
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guard let viewItem = viewItem, let message = viewItem.interaction as? TSMessage else { return }
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let thread = message.thread
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let isGroupThread = thread.isGroupThread()
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// Profile picture view
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profilePictureViewLeftConstraint.constant = isGroupThread ? VisibleMessageCell.groupThreadHSpacing : 0
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profilePictureViewWidthConstraint.constant = isGroupThread ? VisibleMessageCell.profilePictureSize : 0
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let senderSessionID = (message as? TSIncomingMessage)?.authorId
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profilePictureView.isHidden = !VisibleMessageCell.shouldShowProfilePicture(for: viewItem)
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if let senderSessionID = senderSessionID {
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profilePictureView.update(for: senderSessionID)
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}
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// Bubble view
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bubbleViewLeftConstraint1.isActive = (direction == .incoming)
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bubbleViewLeftConstraint1.constant = isGroupThread ? VisibleMessageCell.groupThreadHSpacing : VisibleMessageCell.contactThreadHSpacing
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bubbleViewLeftConstraint2.isActive = (direction == .outgoing)
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bubbleViewTopConstraint.constant = (viewItem.senderName == nil) ? 0 : VisibleMessageCell.authorLabelBottomSpacing
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bubbleViewRightConstraint1.isActive = (direction == .outgoing)
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bubbleViewRightConstraint2.isActive = (direction == .incoming)
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bubbleView.backgroundColor = (direction == .incoming) ? Colors.receivedMessageBackground : Colors.sentMessageBackground
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updateBubbleViewCorners()
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// Content view
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populateContentView(for: viewItem)
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// Date break
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headerViewTopConstraint.constant = shouldInsetHeader ? Values.mediumSpacing : 1
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headerView.subviews.forEach { $0.removeFromSuperview() }
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if viewItem.shouldShowDate {
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populateHeader(for: viewItem)
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}
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// Author label
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authorLabel.textColor = Colors.text
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authorLabel.isHidden = (viewItem.senderName == nil)
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authorLabel.text = viewItem.senderName?.string // Will only be set if it should be shown
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// Message status image view
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let (image, backgroundColor) = getMessageStatusImage(for: message)
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messageStatusImageView.image = image
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messageStatusImageView.backgroundColor = backgroundColor
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if let message = message as? TSOutgoingMessage {
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messageStatusImageView.isHidden = (message.messageState == .sent && message.thread.lastInteraction != message)
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} else {
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messageStatusImageView.isHidden = true
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}
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messageStatusImageViewTopConstraint.constant = (messageStatusImageView.isHidden) ? 0 : 5
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[ messageStatusImageViewWidthConstraint, messageStatusImageViewHeightConstraint ].forEach {
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$0.constant = (messageStatusImageView.isHidden) ? 0 : VisibleMessageCell.messageStatusImageViewSize
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}
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}
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private func populateHeader(for viewItem: ConversationViewItem) {
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guard viewItem.shouldShowDate else { return }
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let dateBreakLabel = UILabel()
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dateBreakLabel.font = .boldSystemFont(ofSize: Values.verySmallFontSize)
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dateBreakLabel.textColor = Colors.text
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dateBreakLabel.textAlignment = .center
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let date = viewItem.interaction.receivedAtDate()
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let description = DateUtil.formatDate(forConversationDateBreaks: date)
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dateBreakLabel.text = description
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headerView.addSubview(dateBreakLabel)
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dateBreakLabel.pin(.top, to: .top, of: headerView, withInset: Values.smallSpacing)
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let additionalBottomInset = shouldInsetHeader ? Values.mediumSpacing : 1
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headerView.pin(.bottom, to: .bottom, of: dateBreakLabel, withInset: Values.smallSpacing + additionalBottomInset)
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dateBreakLabel.center(.horizontal, in: headerView)
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}
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private func populateContentView(for viewItem: ConversationViewItem) {
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snContentView.subviews.forEach { $0.removeFromSuperview() }
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albumView = nil
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mediaTextOverlayView = nil
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let isOutgoing = (viewItem.interaction.interactionType() == .outgoingMessage)
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switch viewItem.messageCellType {
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case .textOnlyMessage:
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guard let message = viewItem.interaction as? TSMessage else { return }
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// Stack view
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let stackView = UIStackView(arrangedSubviews: [])
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stackView.axis = .vertical
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// Quote label
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if viewItem.quotedReply != nil {
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let maxMessageWidth = VisibleMessageCell.getMaxWidth(for: viewItem)
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let quoteView = QuoteView(for: viewItem, maxMessageWidth: maxMessageWidth)
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stackView.addArrangedSubview(quoteView)
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}
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// Body label
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let bodyLabel = UILabel()
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bodyLabel.numberOfLines = 0
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bodyLabel.lineBreakMode = .byWordWrapping
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bodyLabel.textColor = bodyLabelTextColor
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bodyLabel.font = .systemFont(ofSize: getFontSize(for: viewItem))
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bodyLabel.attributedText = given(message.body) { MentionUtilities.highlightMentions(in: $0, isOutgoingMessage: isOutgoing, threadID: viewItem.interaction.uniqueThreadId, attributes: [:]) }
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stackView.addArrangedSubview(bodyLabel)
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// Constraints
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snContentView.addSubview(stackView)
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stackView.pin(to: snContentView, withInset: 12)
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case .mediaMessage:
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guard let cache = delegate?.getMediaCache() else { preconditionFailure() }
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let maxMessageWidth = VisibleMessageCell.getMaxWidth(for: viewItem)
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let albumView = MediaAlbumView(mediaCache: cache, items: viewItem.mediaAlbumItems!, isOutgoing: isOutgoing, maxMessageWidth: maxMessageWidth)
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self.albumView = albumView
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snContentView.addSubview(albumView)
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let size = getSize(for: viewItem)
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albumView.set(.width, to: size.width)
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albumView.set(.height, to: size.height)
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albumView.pin(to: snContentView)
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albumView.loadMedia()
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albumView.layer.mask = bubbleViewMaskLayer
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if let message = viewItem.interaction as? TSMessage, let body = message.body, body.count > 0,
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let delegate = delegate { // delegate should always be set at this point
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let overlayView = MediaTextOverlayView(viewItem: viewItem, albumViewWidth: size.width, delegate: delegate)
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self.mediaTextOverlayView = overlayView
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snContentView.addSubview(overlayView)
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overlayView.pin([ UIView.HorizontalEdge.left, UIView.VerticalEdge.bottom, UIView.HorizontalEdge.right ], to: snContentView)
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}
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unloadContent = { albumView.unloadMedia() }
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case .audio:
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let voiceMessageView = VoiceMessageViewV2(viewItem: viewItem)
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snContentView.addSubview(voiceMessageView)
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voiceMessageView.pin(to: snContentView)
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viewItem.lastAudioMessageView = voiceMessageView
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case .genericAttachment:
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let documentView = DocumentView(viewItem: viewItem, textColor: bodyLabelTextColor)
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snContentView.addSubview(documentView)
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documentView.pin(to: snContentView)
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default: return
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}
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}
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override func layoutSubviews() {
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super.layoutSubviews()
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updateBubbleViewCorners()
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}
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private func updateBubbleViewCorners() {
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let maskPath = UIBezierPath(roundedRect: bubbleView.bounds, byRoundingCorners: getCornersToRound(),
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cornerRadii: CGSize(width: VisibleMessageCell.largeCornerRadius, height: VisibleMessageCell.largeCornerRadius))
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bubbleViewMaskLayer.path = maskPath.cgPath
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bubbleView.layer.mask = bubbleViewMaskLayer
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}
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override func prepareForReuse() {
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super.prepareForReuse()
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unloadContent?()
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}
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// MARK: Interaction
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@objc private func handleLongPress() {
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guard let viewItem = viewItem else { return }
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delegate?.handleViewItemLongPressed(viewItem)
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}
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@objc private func handleTap(_ gestureRecognizer: UITapGestureRecognizer) {
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guard let viewItem = viewItem else { return }
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delegate?.handleViewItemTapped(viewItem, gestureRecognizer: gestureRecognizer)
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}
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@objc private func handleDoubleTap() {
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guard let viewItem = viewItem else { return }
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delegate?.handleViewItemDoubleTapped(viewItem)
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}
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// MARK: Convenience
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private func getCornersToRound() -> UIRectCorner {
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guard !isOnlyMessageInCluster else { return .allCorners }
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let result: UIRectCorner
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switch (positionInCluster, direction) {
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case (.top, .outgoing): result = [ .bottomLeft, .topLeft, .topRight ]
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case (.middle, .outgoing): result = [ .bottomLeft, .topLeft ]
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case (.bottom, .outgoing): result = [ .bottomRight, .bottomLeft, .topLeft ]
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case (.top, .incoming): result = [ .topLeft, .topRight, .bottomRight ]
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case (.middle, .incoming): result = [ .topRight, .bottomRight ]
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case (.bottom, .incoming): result = [ .topRight, .bottomRight, .bottomLeft ]
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case (nil, _): result = .allCorners
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}
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return result
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}
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private func getFontSize(for viewItem: ConversationViewItem) -> CGFloat {
|
||
|
|
let baselineFontSize = Values.mediumFontSize
|
||
|
|
switch viewItem.displayableBodyText?.jumbomojiCount {
|
||
|
|
case 1: return baselineFontSize + 30
|
||
|
|
case 2: return baselineFontSize + 24
|
||
|
|
case 3, 4, 5: return baselineFontSize + 18
|
||
|
|
default: return baselineFontSize
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private func getMessageStatusImage(for message: TSMessage) -> (image: UIImage?, backgroundColor: UIColor?) {
|
||
|
|
guard let message = message as? TSOutgoingMessage else { return (nil, nil) }
|
||
|
|
let image: UIImage
|
||
|
|
var backgroundColor: UIColor? = nil
|
||
|
|
let status = MessageRecipientStatusUtils.recipientStatus(outgoingMessage: message)
|
||
|
|
switch status {
|
||
|
|
case .uploading, .sending: image = #imageLiteral(resourceName: "CircleDotDotDot").asTintedImage(color: Colors.text)!
|
||
|
|
case .sent, .skipped, .delivered: image = #imageLiteral(resourceName: "CircleCheck").asTintedImage(color: Colors.text)!
|
||
|
|
case .read:
|
||
|
|
backgroundColor = isLightMode ? .black : .white
|
||
|
|
image = isLightMode ? #imageLiteral(resourceName: "FilledCircleCheckLightMode") : #imageLiteral(resourceName: "FilledCircleCheckDarkMode")
|
||
|
|
case .failed: image = #imageLiteral(resourceName: "message_status_failed").asTintedImage(color: Colors.text)!
|
||
|
|
}
|
||
|
|
return (image, backgroundColor)
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
private func getSize(for viewItem: ConversationViewItem) -> CGSize {
|
||
|
|
guard let albumItems = viewItem.mediaAlbumItems else { preconditionFailure() }
|
||
|
|
let maxMessageWidth = VisibleMessageCell.getMaxWidth(for: viewItem)
|
||
|
|
let defaultSize = MediaAlbumView.layoutSize(forMaxMessageWidth: maxMessageWidth, items: albumItems)
|
||
|
|
guard albumItems.count == 1 else { return defaultSize }
|
||
|
|
// Honor the content aspect ratio for single media
|
||
|
|
let albumItem = albumItems.first!
|
||
|
|
let size = albumItem.mediaSize
|
||
|
|
guard size.width > 0 && size.height > 0 else { return defaultSize }
|
||
|
|
var aspectRatio = (size.width / size.height)
|
||
|
|
// Clamp the aspect ratio so that very thin/wide content still looks alright
|
||
|
|
let minAspectRatio: CGFloat = 0.35
|
||
|
|
let maxAspectRatio = 1 / minAspectRatio
|
||
|
|
aspectRatio = aspectRatio.clamp(minAspectRatio, maxAspectRatio)
|
||
|
|
let maxSize = CGSize(width: maxMessageWidth, height: maxMessageWidth)
|
||
|
|
var width = with(maxSize.height * aspectRatio) { $0 > maxSize.width ? maxSize.width : $0 }
|
||
|
|
var height = (width > maxSize.width) ? (maxSize.width / aspectRatio) : maxSize.height
|
||
|
|
// Don't blow up small images unnecessarily
|
||
|
|
let minSize: CGFloat = 150
|
||
|
|
let shortSourceDimension = min(size.width, size.height)
|
||
|
|
let shortDestinationDimension = min(width, height)
|
||
|
|
if shortDestinationDimension > minSize && shortDestinationDimension > shortSourceDimension {
|
||
|
|
let factor = minSize / shortDestinationDimension
|
||
|
|
width *= factor; height *= factor
|
||
|
|
}
|
||
|
|
return CGSize(width: width, height: height)
|
||
|
|
}
|
||
|
|
|
||
|
|
static func getMaxWidth(for viewItem: ConversationViewItem) -> CGFloat {
|
||
|
|
let screen = UIScreen.main.bounds
|
||
|
|
switch viewItem.interaction.interactionType() {
|
||
|
|
case .outgoingMessage: return screen.width - contactThreadHSpacing - gutterSize
|
||
|
|
case .incomingMessage:
|
||
|
|
let leftGutterSize = shouldShowProfilePicture(for: viewItem) ? gutterSize : contactThreadHSpacing
|
||
|
|
return screen.width - leftGutterSize - gutterSize
|
||
|
|
default: preconditionFailure()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private static func shouldShowProfilePicture(for viewItem: ConversationViewItem) -> Bool {
|
||
|
|
guard let message = viewItem.interaction as? TSMessage else { preconditionFailure() }
|
||
|
|
let isGroupThread = message.thread.isGroupThread()
|
||
|
|
let senderSessionID = (message as? TSIncomingMessage)?.authorId
|
||
|
|
return isGroupThread && viewItem.shouldShowSenderProfilePicture && senderSessionID != nil
|
||
|
|
}
|
||
|
|
}
|