feat: complete large-book pagination runtime and UI coverage

2026-06-03 17:47:16 +08:00
parent 584976ac5f
commit feb05eaf87
53 changed files with 6307 additions and 5126 deletions
@@ -0,0 +1,37 @@
+import Foundation
+
+final class RDEPUBPageCountCache {
+    private var storage: [RDEPUBChapterCacheKey: RDEPUBRuntimePageCount] = [:]
+    private let lock = NSLock()
+
+    subscript(key: RDEPUBChapterCacheKey) -> RDEPUBRuntimePageCount? {
+        get {
+            lock.lock()
+            defer { lock.unlock() }
+            return storage[key]
+        }
+        set {
+            lock.lock()
+            defer { lock.unlock() }
+            storage[key] = newValue
+        }
+    }
+
+    func entriesForSpineIndex(_ spineIndex: Int) -> [(RDEPUBChapterCacheKey, RDEPUBRuntimePageCount)] {
+        lock.lock()
+        defer { lock.unlock() }
+        return storage.filter { $0.value.spineIndex == spineIndex }.map { ($0.key, $0.value) }
+    }
+
+    func remove(forSpineIndex spineIndex: Int) {
+        lock.lock()
+        defer { lock.unlock() }
+        storage = storage.filter { $0.value.spineIndex != spineIndex }
+    }
+
+    func removeAll() {
+        lock.lock()
+        defer { lock.unlock() }
+        storage.removeAll()
+    }
+}