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@ -12,7 +12,7 @@ enum MessageMetadataViewMode: UInt {
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case focusOnMetadata
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case focusOnMetadata
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}
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}
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class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, MediaDetailPresenter, MediaGalleryDataSourceDelegate {
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class MessageDetailViewController: OWSViewController, MediaDetailPresenter, MediaGalleryDataSourceDelegate {
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// MARK: Properties
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// MARK: Properties
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@ -28,15 +28,9 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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var message: TSMessage
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var message: TSMessage
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var wasDeleted: Bool = false
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var wasDeleted: Bool = false
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var mediaMessageView: MediaMessageView?
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var messageBubbleView: OWSMessageBubbleView?
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var messageBubbleViewWidthLayoutConstraint: NSLayoutConstraint?
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// See comments on updateTextLayout.
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var messageBubbleViewHeightLayoutConstraint: NSLayoutConstraint?
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var messageTextView: UITextView?
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var messageTextProxyView: UIView?
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var messageTextTopConstraint: NSLayoutConstraint?
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var messageTextHeightLayoutConstraint: NSLayoutConstraint?
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var messageTextProxyViewHeightConstraint: NSLayoutConstraint?
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var bubbleViewWidthConstraint: NSLayoutConstraint?
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var scrollView: UIScrollView!
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var scrollView: UIScrollView!
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var contentView: UIView?
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var contentView: UIView?
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@ -87,7 +81,7 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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override func viewWillAppear(_ animated: Bool) {
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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super.viewWillAppear(animated)
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updateTextLayout()
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updateMessageBubbleViewLayout()
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if mode == .focusOnMetadata {
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if mode == .focusOnMetadata {
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if let bubbleView = self.bubbleView {
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if let bubbleView = self.bubbleView {
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@ -121,7 +115,6 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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view.backgroundColor = UIColor.white
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view.backgroundColor = UIColor.white
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let scrollView = UIScrollView()
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let scrollView = UIScrollView()
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scrollView.delegate = self
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self.scrollView = scrollView
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self.scrollView = scrollView
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view.addSubview(scrollView)
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view.addSubview(scrollView)
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scrollView.autoPinWidthToSuperview(withMargin: 0)
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scrollView.autoPinWidthToSuperview(withMargin: 0)
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@ -218,7 +211,7 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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}
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}
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for recipientId in thread.recipientIdentifiers {
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for recipientId in thread.recipientIdentifiers {
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let (recipientStatus, shortStatusMessage, longStatusMessage) = MessageRecipientStatusUtils.recipientStatusAndStatusMessage(outgoingMessage: outgoingMessage, recipientId: recipientId, referenceView: self.view)
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let (recipientStatus, shortStatusMessage, _) = MessageRecipientStatusUtils.recipientStatusAndStatusMessage(outgoingMessage: outgoingMessage, recipientId: recipientId, referenceView: self.view)
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guard recipientStatus == recipientStatusGroup else {
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guard recipientStatus == recipientStatusGroup else {
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continue
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continue
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@ -299,11 +292,7 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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lastRow.autoPinEdge(toSuperviewEdge: .bottom, withInset: 20)
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lastRow.autoPinEdge(toSuperviewEdge: .bottom, withInset: 20)
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}
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}
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if let mediaMessageView = mediaMessageView {
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updateMessageBubbleViewLayout()
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mediaMessageView.autoMatch(.height, to: .width, of: mediaMessageView, withOffset: 0, relation: .lessThanOrEqual)
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}
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updateTextLayout()
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}
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}
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private func displayableTextIfText() -> String? {
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private func displayableTextIfText() -> String? {
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@ -321,8 +310,6 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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}
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}
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let bubbleViewHMargin: CGFloat = 10
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let bubbleViewHMargin: CGFloat = 10
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let messageTailEdgeMargin: CGFloat = 15
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let messageNoTailEdgeMargin: CGFloat = 10
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private func contentRows() -> [UIView] {
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private func contentRows() -> [UIView] {
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var rows = [UIView]()
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var rows = [UIView]()
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@ -331,60 +318,28 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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rows += addAttachmentRows()
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rows += addAttachmentRows()
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}
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}
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if let messageBody = displayableTextIfText() {
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if true {
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let messageBubbleView = OWSMessageBubbleView(frame: CGRect.zero)
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self.messageBubbleView = messageBubbleView
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messageBubbleView.viewItem = viewItem
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messageBubbleView.cellMediaCache = NSCache()
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messageBubbleView.contentWidth = contentWidth()
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messageBubbleView.alwaysShowBubbleTail = true
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messageBubbleView.configureViews()
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messageBubbleView.loadContent()
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self.messageBody = messageBody
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messageBubbleView.isUserInteractionEnabled = true
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messageBubbleView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(messageBubbleTapped)))
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let isIncoming = self.message as? TSIncomingMessage != nil
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let row = UIView()
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row.addSubview(messageBubbleView)
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messageBubbleView.autoPinHeightToSuperview()
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// UITextView can't render extremely long text due to constraints
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let isIncoming = self.message as? TSIncomingMessage != nil
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// on the size of its backing buffer, especially when we're
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messageBubbleView.autoPinEdge(toSuperviewEdge: isIncoming ? .leading : .trailing, withInset: bubbleViewHMargin)
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// embedding it "full-size' within a UIScrollView as we do in this view.
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//
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// Therefore we're doing something unusual here.
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// See comments on updateTextLayout.
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let messageTextView = UITextView()
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self.messageTextView = messageTextView
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messageTextView.font = UIFont.ows_dynamicTypeBody
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messageTextView.backgroundColor = UIColor.clear
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messageTextView.isOpaque = false
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messageTextView.isEditable = false
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messageTextView.isSelectable = true
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messageTextView.textContainerInset = UIEdgeInsets.zero
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messageTextView.contentInset = UIEdgeInsets.zero
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messageTextView.isScrollEnabled = true
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messageTextView.showsHorizontalScrollIndicator = false
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messageTextView.showsVerticalScrollIndicator = false
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messageTextView.isUserInteractionEnabled = false
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messageTextView.textColor = isIncoming ? UIColor.black : UIColor.white
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messageTextView.text = messageBody
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let bubbleImageData = bubbleFactory.bubble(message: message)
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let messageTextProxyView = UIView()
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messageTextProxyView.layoutMargins = UIEdgeInsets.zero
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self.messageTextProxyView = messageTextProxyView
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messageTextProxyView.addSubview(messageTextView)
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messageTextView.autoPinWidthToSuperview()
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self.messageTextTopConstraint = messageTextView.autoPinEdge(toSuperviewEdge: .top, withInset: 0)
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self.messageTextHeightLayoutConstraint = messageTextView.autoSetDimension(.height, toSize: 0)
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let bubbleView = UIImageView(image: bubbleImageData.messageBubbleImage)
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self.bubbleView = bubbleView
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bubbleView.layer.cornerRadius = 10
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bubbleView.addSubview(messageTextProxyView)
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messageTextProxyView.autoPinEdge(toSuperviewEdge: isIncoming ? .leading : .trailing, withInset: messageTailEdgeMargin)
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messageTextProxyView.autoPinEdge(toSuperviewEdge: isIncoming ? .trailing : .leading, withInset: messageNoTailEdgeMargin)
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messageTextProxyView.autoPinHeightToSuperview(withMargin: 10)
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self.messageTextProxyViewHeightConstraint = messageTextProxyView.autoSetDimension(.height, toSize: 0)
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let row = UIView()
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self.messageBubbleViewWidthLayoutConstraint = messageBubbleView.autoSetDimension(.width, toSize: 0)
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row.addSubview(bubbleView)
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self.messageBubbleViewHeightLayoutConstraint = messageBubbleView.autoSetDimension(.height, toSize: 0)
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bubbleView.autoPinHeightToSuperview()
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bubbleView.autoPinEdge(toSuperviewEdge: isIncoming ? .leading : .trailing, withInset: bubbleViewHMargin)
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self.bubbleViewWidthConstraint = bubbleView.autoSetDimension(.width, toSize: 0)
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rows.append(row)
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rows.append(row)
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}
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}
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@ -432,26 +387,6 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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}
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}
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self.attachmentStream = attachmentStream
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self.attachmentStream = attachmentStream
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if let filePath = attachmentStream.filePath() {
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dataSource = DataSourcePath.dataSource(withFilePath: filePath)
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}
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guard let dataSource = dataSource else {
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rows.append(valueRow(name: NSLocalizedString("MESSAGE_METADATA_VIEW_ATTACHMENT_MISSING_FILE",
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comment: "Label for 'missing' attachments in the 'message metadata' view."),
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value: ""))
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return rows
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}
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let contentType = attachment.contentType
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if let dataUTI = MIMETypeUtil.utiType(forMIMEType: contentType) {
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let attachment = SignalAttachment.attachment(dataSource: dataSource, dataUTI: dataUTI, imageQuality: .original)
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let mediaMessageView = MediaMessageView(attachment: attachment, mode: .small, mediaDetailPresenter: self)
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mediaMessageView.backgroundColor = UIColor.white
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self.mediaMessageView = mediaMessageView
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rows.append(mediaMessageView)
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}
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return rows
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return rows
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}
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}
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@ -559,28 +494,6 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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AttachmentSharing.showShareUI(forAttachment: attachmentStream)
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AttachmentSharing.showShareUI(forAttachment: attachmentStream)
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}
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}
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func copyToPasteboard() {
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if let messageBody = messageBody {
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UIPasteboard.general.string = messageBody
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return
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}
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guard let attachmentStream = attachmentStream else {
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Logger.error("\(logTag) Message has neither attachment nor message body.")
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return
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}
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guard let utiType = MIMETypeUtil.utiType(forMIMEType: attachmentStream.contentType) else {
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Logger.error("\(logTag) Attachment has invalid MIME type: \(attachmentStream.contentType).")
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return
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}
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guard let dataSource = dataSource else {
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Logger.error("\(logTag) Attachment missing data source.")
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return
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}
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let data = dataSource.data()
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UIPasteboard.general.setData(data, forPasteboardType: utiType)
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}
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// MARK: - Actions
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// MARK: - Actions
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// This method should be called after self.databaseConnection.beginLongLivedReadTransaction().
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// This method should be called after self.databaseConnection.beginLongLivedReadTransaction().
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@ -650,110 +563,64 @@ class MessageDetailViewController: OWSViewController, UIScrollViewDelegate, Medi
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}
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}
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}
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}
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// MARK: - Text Layout
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// MARK: - Message Bubble Layout
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// UITextView can't render extremely long text due to constraints on the size
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private func contentWidth() -> Int32 {
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// of its backing buffer, especially when we're embedding it "full-size'
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return Int32(round(self.view.width() - (2 * bubbleViewHMargin)))
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// within a UIScrollView as we do in this view. Therefore if we do the naive
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}
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// thing and embed a full-size UITextView inside our UIScrollView, it will
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// fail to render any text if the text message is sufficiently long.
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private func updateMessageBubbleViewLayout() {
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//
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guard let messageBubbleView = messageBubbleView else {
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// Therefore we're doing something unusual.
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//
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// * We use an empty UIView "messageTextProxyView" as a placeholder for the
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// the UITextView. It has the size and position of where the UITextView
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// would be normally.
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// * We use a UITextView inside that proxy that is just large enough to
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// render the content onscreen. We then move it around within the proxy
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// bounds to render the parts of the proxy which are onscreen.
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private func updateTextLayout() {
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guard let messageTextView = messageTextView else {
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return
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}
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guard let messageTextProxyView = messageTextProxyView else {
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owsFail("\(logTag) Missing messageTextProxyView")
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return
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}
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guard let scrollView = scrollView else {
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owsFail("\(logTag) Missing scrollView")
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return
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}
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guard let contentView = contentView else {
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owsFail("\(logTag) Missing contentView")
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return
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}
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guard let bubbleView = bubbleView else {
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owsFail("\(logTag) Missing bubbleView")
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return
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return
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}
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}
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guard let bubbleSuperview = bubbleView.superview else {
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guard let messageBubbleViewWidthLayoutConstraint = messageBubbleViewWidthLayoutConstraint else {
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owsFail("\(logTag) Missing bubbleSuperview")
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return
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return
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}
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}
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guard let messageTextTopConstraint = messageTextTopConstraint else {
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guard let messageBubbleViewHeightLayoutConstraint = messageBubbleViewHeightLayoutConstraint else {
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owsFail("\(logTag) Missing messageTextTopConstraint")
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return
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return
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}
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}
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guard let messageTextHeightLayoutConstraint = messageTextHeightLayoutConstraint else {
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owsFail("\(logTag) Missing messageTextHeightLayoutConstraint")
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messageBubbleView.contentWidth = contentWidth()
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let messageBubbleSize = messageBubbleView.size(forContentWidth: contentWidth())
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messageBubbleViewWidthLayoutConstraint.constant = messageBubbleSize.width
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messageBubbleViewHeightLayoutConstraint.constant = messageBubbleSize.height
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}
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// MARK: - Event Handlers
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func messageBubbleTapped(sender: UIGestureRecognizer) {
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guard let messageBubbleView = messageBubbleView else {
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return
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return
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}
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}
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guard let messageTextProxyViewHeightConstraint = messageTextProxyViewHeightConstraint else {
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|
guard sender.state == .recognized else {
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|
owsFail("\(logTag) Missing messageTextProxyViewHeightConstraint")
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return
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|
return
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}
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}
|
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|
guard let bubbleViewWidthConstraint = bubbleViewWidthConstraint else {
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if let outgoingMessage = viewItem.interaction as? TSOutgoingMessage {
|
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|
|
owsFail("\(logTag) Missing bubbleViewWidthConstraint")
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|
|
switch outgoingMessage.messageState {
|
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|
|
return
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|
case .attemptingOut,
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|
.unsent:
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|
// Ignore taps on "unsent" and "sending" messages.
|
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|
return
|
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|
default:
|
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|
|
break
|
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}
|
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|
}
|
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|
}
|
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|
|
if messageTextView.width() != messageTextProxyView.width() {
|
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|
|
let locationInMessageBubble = sender.location(in: messageBubbleView)
|
|
|
|
owsFail("\(logTag) messageTextView.width \(messageTextView.width) != messageTextProxyView.width \(messageTextProxyView.width)")
|
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|
|
switch messageBubbleView.gestureLocation(forLocation: locationInMessageBubble) {
|
|
|
|
}
|
|
|
|
case .default:
|
|
|
|
|
|
|
|
break
|
|
|
|
let maxBubbleWidth = bubbleSuperview.width() - (bubbleViewHMargin * 2)
|
|
|
|
case .oversizeText:
|
|
|
|
let maxTextWidth = maxBubbleWidth - (messageTailEdgeMargin + messageNoTailEdgeMargin)
|
|
|
|
let viewController = LongTextViewController(viewItem: viewItem)
|
|
|
|
// Measure the total text size.
|
|
|
|
self.navigationController?.pushViewController(viewController, animated: true)
|
|
|
|
let textSize = messageTextView.sizeThatFits(CGSize(width: maxTextWidth, height: CGFloat.greatestFiniteMagnitude))
|
|
|
|
break
|
|
|
|
// Measure the size of the scroll view viewport.
|
|
|
|
case .media:
|
|
|
|
let scrollViewSize = scrollView.frame.size
|
|
|
|
// TODO: We could show MediaGalleryViewController?
|
|
|
|
// Obtain the current scroll view content offset (scroll state).
|
|
|
|
break
|
|
|
|
let scrollViewContentOffset = scrollView.contentOffset
|
|
|
|
case .quotedReply:
|
|
|
|
// Obtain the location of the text view proxy relative to the content view.
|
|
|
|
break
|
|
|
|
let textProxyOffset = contentView.convert(CGPoint.zero, from: messageTextProxyView)
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// 1. The bubble view's width should fit the text content.
|
|
|
|
|
|
|
|
let bubbleViewWidth = ceil(textSize.width + messageTailEdgeMargin + messageNoTailEdgeMargin)
|
|
|
|
|
|
|
|
bubbleViewWidthConstraint.constant = bubbleViewWidth
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 2. The text proxy's height should reflect the entire text content.
|
|
|
|
|
|
|
|
let messageTextProxyViewHeight = ceil(textSize.height)
|
|
|
|
|
|
|
|
messageTextProxyViewHeightConstraint.constant = messageTextProxyViewHeight
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 3. We only want to render a single screenful of text content at a time.
|
|
|
|
|
|
|
|
// The height of the text view should reflect the height of the scrollview's
|
|
|
|
|
|
|
|
// viewport.
|
|
|
|
|
|
|
|
let messageTextViewHeight = ceil(min(textSize.height, scrollViewSize.height))
|
|
|
|
|
|
|
|
messageTextHeightLayoutConstraint.constant = messageTextViewHeight
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 4. We want to move the text view around within the proxy in response to
|
|
|
|
|
|
|
|
// scroll state changes so that it can render the part of the proxy which
|
|
|
|
|
|
|
|
// is on screen.
|
|
|
|
|
|
|
|
let minMessageTextViewY = CGFloat(0)
|
|
|
|
|
|
|
|
let maxMessageTextViewY = messageTextProxyViewHeight - messageTextViewHeight
|
|
|
|
|
|
|
|
let rawMessageTextViewY = -textProxyOffset.y + scrollViewContentOffset.y
|
|
|
|
|
|
|
|
let messageTextViewY = max(minMessageTextViewY, min(maxMessageTextViewY, rawMessageTextViewY))
|
|
|
|
|
|
|
|
messageTextTopConstraint.constant = messageTextViewY
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 5. We want to scroll the text view's content so that the text view
|
|
|
|
|
|
|
|
// renders the appropriate content for the scrollview's scroll state.
|
|
|
|
|
|
|
|
messageTextView.contentOffset = CGPoint(x: 0, y: messageTextViewY)
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
public func scrollViewDidScroll(_ scrollView: UIScrollView) {
|
|
|
|
|
|
|
|
Logger.verbose("\(logTag) scrollViewDidScroll")
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
updateTextLayout()
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// MediaGalleryDataSourceDelegate
|
|
|
|
// MediaGalleryDataSourceDelegate
|
|
|
|
|
Matthew Chen
8 years ago