83 lines
3.2 KiB
Swift
83 lines
3.2 KiB
Swift
//
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// SBUMessageWebViewModel.swift
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// SendbirdUIKit
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//
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// Created by Wooyoung Chung on 7/9/20.
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// Copyright © 2020 Sendbird, Inc. All rights reserved.
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//
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import UIKit
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import SendbirdChatSDK
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public class SBUMessageWebViewModel {
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public var imageURL: String?
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public var titleAttributedText: NSAttributedString?
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public var descAttributedText: NSAttributedString?
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public var urlAttributedText: NSAttributedString?
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public var placeHolderImage: UIImage?
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public var errorImage: UIImage?
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public init(metaData: OGMetaData?, isOverlay: Bool = false, isOpenChannel: Bool = false) {
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let theme = isOverlay ? SBUTheme.overlayTheme.messageCellTheme : SBUTheme.messageCellTheme
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let imageData = metaData?.defaultImage
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if let title = metaData?.title {
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var attributes = self.applyLinebreak(SBUFontSet.body2Attributes)
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attributes[.foregroundColor] = isOpenChannel
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? theme.openChannelOGTitleColor
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: theme.ogTitleColor
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attributes[.font] = theme.ogTitleFont
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let attributedString = NSMutableAttributedString(
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string: title,
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attributes: attributes
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)
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self.titleAttributedText = attributedString
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}
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if let desc = metaData?.desc {
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var attributes = self.applyLinebreak(SBUFontSet.caption2Attributes)
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attributes[.foregroundColor] = theme.ogDescriptionColor
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attributes[.font] = theme.ogDescriptionFont
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let attributedString = NSMutableAttributedString(
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string: desc,
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attributes: attributes
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)
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self.descAttributedText = attributedString
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}
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if let url = metaData?.url {
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var attributes = self.applyLinebreak(SBUFontSet.caption2Attributes)
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attributes[.foregroundColor] = theme.ogURLAddressColor
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attributes[.font] = theme.ogURLAddressFont
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let attributedString = NSMutableAttributedString(
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string: url,
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attributes: attributes
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)
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self.urlAttributedText = attributedString
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}
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self.imageURL = imageData?.secureURL ?? imageData?.url
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self.placeHolderImage = SBUIconSetType.iconPhoto.image(
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with: theme.fileMessagePlaceholderColor,
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to: SBUIconSetType.Metric.defaultIconSizeVeryLarge
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)
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self.errorImage = SBUIconSetType.iconThumbnailNone.image(
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with: theme.fileMessagePlaceholderColor,
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to: SBUIconSetType.Metric.defaultIconSizeVeryLarge
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)
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}
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private func applyLinebreak(_ attributes: [NSAttributedString.Key: Any]) -> [NSAttributedString.Key: Any] {
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var newAttributes = attributes
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if let paragraphStyle = attributes[.paragraphStyle] as? NSMutableParagraphStyle {
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paragraphStyle.lineBreakMode = .byTruncatingTail
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newAttributes[.paragraphStyle] = paragraphStyle
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} else {
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let paragraphStyle = NSMutableParagraphStyle()
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paragraphStyle.lineBreakMode = .byTruncatingTail
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newAttributes[.paragraphStyle] = paragraphStyle
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}
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return newAttributes
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}
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}
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