refactor: split reader architecture and chrome handling

2026-05-31 21:47:54 +08:00
parent ea21c6a831
commit 44202357c0
80 changed files with 10635 additions and 8522 deletions
@@ -0,0 +1,45 @@
+import UIKit
+
+/// Keeps pagination cache key generation and cache IO in one BuildPipeline role.
+struct RDEPUBPaginationCacheCoordinator {
+    private let cache: RDEPUBTextBookCache?
+    private let layoutConfig: RDEPUBTextLayoutConfig
+
+    init(cache: RDEPUBTextBookCache?, layoutConfig: RDEPUBTextLayoutConfig) {
+        self.cache = cache
+        self.layoutConfig = layoutConfig
+    }
+
+    func cacheKey(
+        bookID: String,
+        pageSize: CGSize,
+        style: RDEPUBTextRenderStyle
+    ) -> String? {
+        guard let cache else { return nil }
+        return cache.cacheKey(
+            bookID: bookID,
+            fontSize: style.font.pointSize,
+            lineHeightMultiple: style.lineSpacing,
+            contentInsets: layoutConfig.edgeInsets,
+            pageSize: pageSize,
+            layoutConfigSignature: layoutConfig.cacheSignature
+        )
+    }
+
+    func load(key: String?) -> [String: RDEPUBTextChapterPaginationCache]? {
+        key.flatMap { cache?.load(key: $0) }
+    }
+
+    func save(chapters: [RDEPUBTextChapter], key: String?) {
+        guard let key else { return }
+        let paginationCache = chapters.map { chapter in
+            RDEPUBTextChapterPaginationCache(
+                href: chapter.href,
+                pageRanges: chapter.pages.map(\.contentRange),
+                breakReasons: chapter.pages.map(\.metadata.breakReason),
+                semanticHints: Array(Set(chapter.pages.flatMap(\.metadata.semanticHints)))
+            )
+        }
+        cache?.save(paginationCache, key: key)
+    }
+}