mirror of https://github.com/oxen-io/session-ios
Matthew Chen
9 years ago
parent
7ff98a0d82
commit
4649fcfd20
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//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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import WebRTC
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import PromiseKit
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class OversizeTextMessageViewController: UIViewController {
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let TAG = "[OversizeTextMessageViewController]"
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let message: TSMessage
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// MARK: Initializers
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@available(*, unavailable, message:"use message: constructor instead.")
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required init?(coder aDecoder: NSCoder) {
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message = TSMessage()
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super.init(coder: aDecoder)
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}
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required init(message: TSMessage) {
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self.message = message
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super.init(nibName: nil, bundle: nil)
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}
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// MARK: Attachment
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private func attachmentStream() -> TSAttachmentStream? {
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guard message.hasAttachments() else {
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Logger.error("\(TAG) message has no attachments.")
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assert(false)
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return nil
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}
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let attachmentIDRaw = message.attachmentIds[0]
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guard attachmentIDRaw is String else {
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Logger.error("\(TAG) message attachment id is not a string.")
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assert(false)
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return nil
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}
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let attachmentID = attachmentIDRaw as! String
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guard let attachment = TSAttachment.fetch(withUniqueID:attachmentID) else {
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Logger.error("\(TAG) could not load attachment.")
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assert(false)
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return nil
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}
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guard attachment.contentType == OWSMimeTypeOversizeTextMessage else {
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Logger.error("\(TAG) attachment has unexpected content type.")
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assert(false)
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return nil
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}
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guard attachment is TSAttachmentStream else {
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Logger.error("\(TAG) attachment has unexpected type.")
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assert(false)
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return nil
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}
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let stream = attachment as! TSAttachmentStream
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return stream
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}
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private func attachmentData() -> Data? {
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guard let stream = attachmentStream() else {
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Logger.error("\(TAG) attachment has invalid stream.")
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assert(false)
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return nil
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}
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guard let mediaURL = stream.mediaURL() else {
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Logger.error("\(TAG) attachment missing URL.")
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assert(false)
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return nil
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}
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do {
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let textData = try Data(contentsOf:mediaURL)
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return textData
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} catch {
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Logger.error("\(TAG) error loading data.")
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assert(false)
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return nil
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}
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}
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private func displayText() -> String {
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guard let textData = attachmentData() else {
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Logger.error("\(TAG) could not load attachment data.")
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assert(false)
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return ""
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}
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guard let fullText = String(data:textData, encoding:.utf8) else {
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Logger.error("\(TAG) text is empty.")
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assert(false)
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return ""
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}
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guard let displayText = DisplayableTextFilter().displayableText(fullText) else {
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Logger.error("\(TAG) No valid text.")
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assert(false)
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return ""
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}
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return displayText
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}
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// MARK: View Lifecycle
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override func viewDidLoad() {
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super.viewDidLoad()
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self.navigationItem.title = NSLocalizedString("OVERSIZE_TEXT_MESSAGE_VIEW_TITLE",
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comment: "The title of the 'oversize text message' view.")
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self.view.backgroundColor = UIColor.white
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let textView = UITextView()
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textView.textColor = UIColor.black
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textView.text = displayText()
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textView.font = UIFont.ows_regularFont(withSize:14)
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self.view.addSubview(textView)
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textView.autoPinWidthToSuperview()
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textView.autoPin(toTopLayoutGuideOf : self, withInset: 0)
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let footerBar = UIToolbar()
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footerBar.barTintColor = UIColor.ows_signalBrandBlue()
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footerBar.setItems([
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UIBarButtonItem(barButtonSystemItem:.flexibleSpace,
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target:nil,
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action:nil),
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UIBarButtonItem(barButtonSystemItem:.action,
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target:self,
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action:#selector(shareWasPressed)),
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UIBarButtonItem(barButtonSystemItem:.flexibleSpace,
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target:nil,
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action:nil)
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], animated: false)
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self.view.addSubview(footerBar)
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footerBar.autoPinWidthToSuperview()
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footerBar.autoPin(toBottomLayoutGuideOf : self, withInset: 0)
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footerBar.autoPinEdge(.top, to:.bottom, of:textView)
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}
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func shareWasPressed(sender: UIButton) {
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Logger.info("\(TAG) sharing oversize text.")
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guard let attachment = attachmentStream() else {
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Logger.error("\(TAG) attachment has invalid stream.")
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assert(false)
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return
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}
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AttachmentSharing.showShareUI(for:attachment.mediaURL())
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}
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}
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