wehub-resource-sync
55 lines
2.0 KiB
Swift
55 lines
2.0 KiB
Swift
import AppKit
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extension StatusItemController {
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struct MenuCardHeightCacheKey: Hashable {
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let id: String
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let scope: String
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let width: Int
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let textScale: Int
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let fingerprint: String
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}
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/// Measured card height also depends on the resolved font sizes, which the menu cards
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/// derive from semantic text styles (`.body`, `.footnote`, …). Those scale with the
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/// macOS system text-size / Dynamic Type setting, which is neither part of the content
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/// fingerprint nor invalidated on rebuild. Fold the current resolved scale into the key
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/// so a runtime text-size change forces a fresh measurement instead of returning a
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/// height measured at the old scale (clipped / over-tall cards).
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static func menuCardHeightTextScaleToken() -> Int {
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Int((NSFont.preferredFont(forTextStyle: .body).pointSize * 100).rounded())
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}
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func cachedMenuCardHeight(
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for id: String,
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scope: String,
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width: CGFloat,
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fingerprint: String? = nil,
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measure: () -> CGFloat) -> CGFloat
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{
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let key = MenuCardHeightCacheKey(
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id: id,
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scope: scope,
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width: Int((width * 100).rounded()),
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textScale: Self.menuCardHeightTextScaleToken(),
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fingerprint: fingerprint ?? "version:\(self.menuSession.contentVersion)")
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if let cached = self.menuCardHeightCache[key] {
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return cached
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}
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let height = measure()
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if self.menuCardHeightCache.count > 256 {
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self.menuCardHeightCache.removeAll(keepingCapacity: true)
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}
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self.menuCardHeightCache[key] = height
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return height
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}
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func pruneVersionScopedMenuCardHeightCache() {
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let currentVersionFingerprint = "version:\(self.menuSession.contentVersion)"
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for key in self.menuCardHeightCache.keys
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where key.fingerprint.hasPrefix("version:") && key.fingerprint != currentVersionFingerprint
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{
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self.menuCardHeightCache.removeValue(forKey: key)
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}
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}
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}
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