311 lines
9.7 KiB
Swift
311 lines
9.7 KiB
Swift
//
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// Copyright (c) 2020 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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@objc
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public class ConversationStyle: NSObject {
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private let thread: TSThread
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// The width of the collection view.
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@objc public var viewWidth: CGFloat = 0 {
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didSet {
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AssertIsOnMainThread()
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updateProperties()
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}
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}
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@objc public let contentMarginTop: CGFloat = 24
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@objc public let contentMarginBottom: CGFloat = 24
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@objc public var gutterLeading: CGFloat = 0
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@objc public var gutterTrailing: CGFloat = 0
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@objc public var headerGutterLeading: CGFloat = 28
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@objc public var headerGutterTrailing: CGFloat = 28
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// These are the gutters used by "full width" views
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// like "contact offer" and "info message".
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@objc public var fullWidthGutterLeading: CGFloat = 0
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@objc public var fullWidthGutterTrailing: CGFloat = 0
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@objc static public let groupMessageAvatarDiameter: CGFloat = 28
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@objc static public let selectionViewWidth: CGFloat = 24
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@objc static public let messageStackSpacing: CGFloat = 8
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@objc static public let defaultMessageSpacing: CGFloat = 12
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@objc static public let compactMessageSpacing: CGFloat = 2
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@objc static public let systemMessageSpacing: CGFloat = 20
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@objc public var contentWidth: CGFloat {
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return viewWidth - (gutterLeading + gutterTrailing)
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}
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@objc public var selectableCenteredContentWidth: CGFloat {
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return viewWidth - (fullWidthGutterLeading + fullWidthGutterTrailing) - (Self.selectionViewWidth + Self.messageStackSpacing) * 2
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}
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@objc public var headerViewContentWidth: CGFloat {
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return viewWidth - (headerGutterLeading + headerGutterTrailing)
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}
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@objc public private(set) var maxMessageWidth: CGFloat = 0
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@objc public private(set) var maxMediaMessageWidth: CGFloat = 0
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@objc public var textInsetTop: CGFloat = 0
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@objc public var textInsetBottom: CGFloat = 0
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@objc public var textInsetHorizontal: CGFloat = 0
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// We want to align "group sender" avatars with the v-center of the
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// "last line" of the message body text - or where it would be for
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// non-text content.
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//
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// This is the distance from that v-center to the bottom of the
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// message bubble.
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@objc public var lastTextLineAxis: CGFloat = 0
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@objc
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public required init(thread: TSThread) {
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self.thread = thread
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self.conversationColor = ConversationStyle.conversationColor(thread: thread)
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super.init()
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updateProperties()
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NotificationCenter.default.addObserver(self,
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selector: #selector(uiContentSizeCategoryDidChange),
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name: UIContentSizeCategory.didChangeNotification,
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object: nil)
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}
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deinit {
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NotificationCenter.default.removeObserver(self)
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}
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@objc func uiContentSizeCategoryDidChange() {
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AssertIsOnMainThread()
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updateProperties()
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}
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// MARK: -
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@objc
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public func updateProperties() {
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gutterLeading = thread.isGroupThread ? 12 : 16
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gutterTrailing = 16
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fullWidthGutterLeading = thread.isGroupThread ? 12 : 16
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fullWidthGutterTrailing = thread.isGroupThread ? 12 : 16
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headerGutterLeading = 28
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headerGutterTrailing = 28
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maxMessageWidth = contentWidth - (Self.selectionViewWidth + Self.messageStackSpacing)
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if thread.isGroupThread {
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maxMessageWidth -= (Self.groupMessageAvatarDiameter + Self.messageStackSpacing)
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}
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// This upper bound should have no effect in portrait orientation.
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// It limits body media size in landscape.
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let kMaxBodyMediaSize: CGFloat = 350
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maxMediaMessageWidth = floor(min(maxMessageWidth, kMaxBodyMediaSize))
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let messageTextFont = UIFont.ows_dynamicTypeBody
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let baseFontOffset: CGFloat = 11
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// Don't include the distance from the "cap height" to the top of the UILabel
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// in the top margin.
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textInsetTop = max(0, round(baseFontOffset - (messageTextFont.ascender - messageTextFont.capHeight)))
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// Don't include the distance from the "baseline" to the bottom of the UILabel
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// (e.g. the descender) in the top margin. Note that UIFont.descender is a
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// negative value.
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textInsetBottom = max(0, round(baseFontOffset - abs(messageTextFont.descender)))
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textInsetHorizontal = 12
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lastTextLineAxis = CGFloat(round(baseFontOffset + messageTextFont.capHeight * 0.5))
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self.conversationColor = ConversationStyle.conversationColor(thread: thread)
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}
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// MARK: Colors
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@objc
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public var conversationColor: OWSConversationColor
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private class func conversationColor(thread: TSThread) -> OWSConversationColor {
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let colorName = thread.conversationColorName
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return OWSConversationColor.conversationColorOrDefault(colorName: colorName)
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}
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@objc
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private static var defaultBubbleColorIncoming: UIColor {
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return Theme.isDarkThemeEnabled ? UIColor.ows_gray80 : UIColor.ows_gray05
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}
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@objc
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public let bubbleColorOutgoingFailed = UIColor.ows_accentBlue
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@objc
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public let bubbleColorOutgoingSending = UIColor.ows_accentBlue
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@objc
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public let bubbleColorOutgoingSent = UIColor.ows_accentBlue
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@objc
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public let dateBreakTextColor = UIColor.ows_gray60
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@objc
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public func bubbleColor(message: TSMessage) -> UIColor {
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if message.wasRemotelyDeleted {
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return Theme.backgroundColor
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} else if message is TSIncomingMessage {
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return ConversationStyle.defaultBubbleColorIncoming
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} else if let outgoingMessage = message as? TSOutgoingMessage {
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switch outgoingMessage.messageState {
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case .failed:
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return bubbleColorOutgoingFailed
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case .sending:
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return bubbleColorOutgoingSending
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default:
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return bubbleColorOutgoingSent
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}
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} else {
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owsFailDebug("Unexpected message type: \(message)")
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return bubbleColorOutgoingSent
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}
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}
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@objc
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public func bubbleColor(isIncoming: Bool) -> UIColor {
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if isIncoming {
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return ConversationStyle.defaultBubbleColorIncoming
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} else {
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return self.bubbleColorOutgoingSent
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}
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}
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@objc
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public static var bubbleTextColorIncoming: UIColor {
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return Theme.isDarkThemeEnabled ? UIColor.ows_gray05 : UIColor.ows_gray90
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}
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@objc
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public static var bubbleSecondaryTextColorIncoming: UIColor {
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return Theme.isDarkThemeEnabled ? .ows_gray25 : .ows_gray60
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}
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@objc
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public static var bubbleTextColorOutgoing: UIColor {
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return Theme.isDarkThemeEnabled ? UIColor.ows_gray05 : UIColor.ows_white
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}
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@objc
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public static var bubbleSecondaryTextColorOutgoing: UIColor {
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return Theme.isDarkThemeEnabled ? .ows_whiteAlpha60 : .ows_whiteAlpha80
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}
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@objc
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public func bubbleTextColor(message: TSMessage) -> UIColor {
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if message.wasRemotelyDeleted {
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return Theme.primaryTextColor
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} else if message is TSIncomingMessage {
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return ConversationStyle.bubbleTextColorIncoming
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} else if message is TSOutgoingMessage {
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return ConversationStyle.bubbleTextColorOutgoing
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} else {
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owsFailDebug("Unexpected message type: \(message)")
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return ConversationStyle.bubbleTextColorOutgoing
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}
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}
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@objc
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public func bubbleTextColor(isIncoming: Bool) -> UIColor {
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if isIncoming {
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return ConversationStyle.bubbleTextColorIncoming
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} else {
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return ConversationStyle.bubbleTextColorOutgoing
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}
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}
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@objc
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public func bubbleReadMoreTextColor(message: TSMessage) -> UIColor {
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if message is TSIncomingMessage {
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return Theme.isDarkThemeEnabled ? .ows_whiteAlpha90 : .ows_accentBlue
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} else if message is TSOutgoingMessage {
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return Theme.isDarkThemeEnabled ? .ows_whiteAlpha90 : .white
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} else {
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owsFailDebug("Unexpected message type: \(message)")
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return ConversationStyle.bubbleTextColorOutgoing
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}
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}
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@objc
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public func bubbleSecondaryTextColor(isIncoming: Bool) -> UIColor {
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if isIncoming {
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return ConversationStyle.bubbleSecondaryTextColorIncoming
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} else {
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return ConversationStyle.bubbleSecondaryTextColorOutgoing
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}
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}
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@objc
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public var quotedReplyBubbleColor: UIColor {
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if Theme.isDarkThemeEnabled {
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return .ows_signalBlueDark
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} else {
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return .ows_accentBlueTint
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}
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}
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@objc
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public func quotedReplyStripeColor(isIncoming: Bool) -> UIColor {
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if Theme.isDarkThemeEnabled {
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if isIncoming {
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return .ows_accentBlueTint
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} else {
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return .ows_black
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}
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} else if isIncoming {
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return .ows_accentBlue
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} else {
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return .ows_white
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}
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}
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@objc
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public func quotingSelfHighlightColor() -> UIColor {
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// TODO:
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return UIColor.init(rgbHex: 0xB5B5B5)
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}
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@objc
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public func quotedReplyAuthorColor() -> UIColor {
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return quotedReplyTextColor()
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}
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@objc
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public func quotedReplyTextColor() -> UIColor {
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if Theme.isDarkThemeEnabled {
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return UIColor.ows_gray05
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} else {
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return UIColor.ows_gray90
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}
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}
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@objc
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public func quotedReplyAttachmentColor() -> UIColor {
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if Theme.isDarkThemeEnabled {
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return UIColor.ows_gray05
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} else {
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return UIColor.ows_gray90
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}
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}
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}
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