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public var messageStatus = MessageStatus.IncomingMessage {
    didSet {
        self.messageStatusChanged(messageStatus)
        switch messageStatus {
        case .IncomingMessage:
            haloView.alpha = 0.0
            whiteCircleView.fillColor = .clearColor()
            whiteCircleView.borderColor = .clearColor()
            colorCircleView.fillColor = .clearColor()
            colorCircleView.borderColor = .clearColor()
            haloView.color = .clearColor()
        default:
            whiteCircleView.fillColor = collectionViewBackgroundColor
            haloView.alpha = 1.0
        }
        
        switch messageStatus {
        case .ReadedMessage:
            colorCircleView.fillColor = bubbleColor
            colorCircleView.borderColor = bubbleColor
            haloView.color = bubbleColor
        case .DeliveredMessage:
            colorCircleView.fillColor = .whiteColor()
            colorCircleView.borderColor = bubbleColor
            haloView.color = bubbleColor
        case .NonDeliveredMessage:
            colorCircleView.fillColor = .clearColor()
            colorCircleView.borderColor = bubbleColor
            haloView.color = .clearColor()
        default: break
        }
    }
}