fix: Update nsAttributedString when defaultFont changes.

laosb · Mar 1, 2024 · e398329 · e398329
1 parent ebd1de7
commit e398329
Showing 1 changed file with 29 additions and 6 deletions.
diff --git a/Sources/EasyRichTextUI/ERTRichTextEditContext.swift b/Sources/EasyRichTextUI/ERTRichTextEditContext.swift
@@ -24,26 +24,49 @@ public class ERTRichTextEditContext<RichText: ERTRichText>: ObservableObject {
  @Published public private(set) var richText: RichText
  @Published public private(set) var selectedRange: NSRange?
  var nsAttributedString: NSMutableAttributedString
- public var defaultFont: CTFont
+ public var defaultFont: CTFont {
+ didSet {
+ nsAttributedString = Self.nsAttributedString(
+ from: richText,
+ italicSynthesizer: italicSynthesizer,
+ defaultFont: defaultFont,
+ attributedStringBridge: attributedStringBridge
+ )
+ }
+ }
  var onTextUpdated: ((NSAttributedString) -> ())?
  public var onEndEditing: (() -> ())?
 
  let italicSynthesizer: ERTItalicSynthesizer?
  let attributedStringBridge: ERTAttributedStringBridge
  let fontUtils: ERTFontUtils
 
+ static func nsAttributedString(
+ from richText: RichText,
+ italicSynthesizer: ERTItalicSynthesizer?,
+ defaultFont: CTFont,
+ attributedStringBridge: ERTAttributedStringBridge
+ ) -> NSMutableAttributedString {
+ var attributedString = richText.attributedString(defaultFont: defaultFont)
+ if let italicSynthesizer {
+ attributedString = italicSynthesizer.synthesize(attributedString)
+ }
+ return .init(attributedString: attributedStringBridge.nsAttributedString(for: attributedString))
+ }
+
  public init(richText: RichText, defaultFont: CTFont, italicSynthesizer: ERTItalicSynthesizer? = nil, attributedStringBridge: ERTAttributedStringBridge = .default, fontUtils: ERTFontUtils = .default) {
  self.richText = richText
  self.defaultFont = defaultFont
  self.italicSynthesizer = italicSynthesizer
  self.attributedStringBridge = attributedStringBridge
  self.fontUtils = fontUtils
 
- var attributedString = richText.attributedString(defaultFont: defaultFont)
- if let italicSynthesizer {
- attributedString = italicSynthesizer.synthesize(attributedString)
- }
- self.nsAttributedString = .init(attributedString: attributedStringBridge.nsAttributedString(for: attributedString))
+ self.nsAttributedString = Self.nsAttributedString(
+ from: richText,
+ italicSynthesizer: italicSynthesizer,
+ defaultFont: defaultFont,
+ attributedStringBridge: attributedStringBridge
+ )
  }
 
  func updateSelectedRange(_ range: NSRange?) {