// // Copyright (c) 2017 Open Whisper Systems. All rights reserved. // import Foundation import JSQMessagesViewController import SignalServiceKit import SignalMessaging @objc class OWSMessagesBubbleImageFactory: NSObject { static let shared = OWSMessagesBubbleImageFactory() private let jsqFactory = JSQMessagesBubbleImageFactory()! // TODO: UIView is a little bit expensive to instantiate. // Can we cache this value? private lazy var isRTL: Bool = { return UIView().isRTL() }() public lazy var incoming: JSQMessagesBubbleImage = { let color = UIColor.jsq_messageBubbleLightGray()! return self.incoming(color: color) }() public lazy var outgoing: JSQMessagesBubbleImage = { let color = UIColor.ows_materialBlue() return self.outgoing(color: color) }() public lazy var currentlyOutgoing: JSQMessagesBubbleImage = { let color = UIColor.ows_fadedBlue() return self.outgoing(color: color) }() public lazy var outgoingFailed: JSQMessagesBubbleImage = { let color = UIColor.gray return self.outgoing(color: color) }() public func bubble(message: TSMessage) -> JSQMessagesBubbleImage { if message is TSIncomingMessage { return self.incoming } else if let outgoingMessage = message as? TSOutgoingMessage { switch outgoingMessage.messageState { case .unsent: return outgoingFailed case .attemptingOut: return currentlyOutgoing default: return outgoing } } else { owsFail("Unexpected message type: \(message)") return outgoing } } private func outgoing(color: UIColor) -> JSQMessagesBubbleImage { if isRTL { return jsqFactory.incomingMessagesBubbleImage(with: color) } else { return jsqFactory.outgoingMessagesBubbleImage(with: color) } } private func incoming(color: UIColor) -> JSQMessagesBubbleImage { if isRTL { return jsqFactory.outgoingMessagesBubbleImage(with: color) } else { return jsqFactory.incomingMessagesBubbleImage(with: color) } } }