Add vertical chapter navigator for paged reader with height adjustment option (#3531)

core/common/src/main/kotlin/tachiyomi/core/common/preference/AndroidPreference.kt

@@ -212,4 +212,25 @@ sealed class AndroidPreference<T>(
             putInt(key, serializer(value))
         }
     }
+
+    class ObjectSetAsStringSet<T>(
+        preferences: SharedPreferences,
+        keyFlow: Flow<String?>,
+        key: String,
+        defaultValue: Set<T>,
+        private val serializer: (T) -> String,
+        private val deserializer: (String) -> T?,
+    ) : AndroidPreference<Set<T>>(preferences, keyFlow, key, defaultValue) {
+        override fun read(preferences: SharedPreferences, key: String, defaultValue: Set<T>): Set<T> {
+            return try {
+                preferences.getStringSet(key, null)?.mapNotNull(deserializer)?.toSet() ?: defaultValue
+            } catch (_: Exception) {
+                defaultValue
+            }
+        }
+
+        override fun write(key: String, value: Set<T>): Editor.() -> Unit = {
+            putStringSet(key, value.map(serializer).toSet())
+        }
+    }
 }

core/common/src/main/kotlin/tachiyomi/core/common/preference/AndroidPreferenceStore.kt

@@ -11,6 +11,7 @@ import tachiyomi.core.common.preference.AndroidPreference.IntPrimitive
 import tachiyomi.core.common.preference.AndroidPreference.LongPrimitive
 import tachiyomi.core.common.preference.AndroidPreference.ObjectAsInt
 import tachiyomi.core.common.preference.AndroidPreference.ObjectAsString
+import tachiyomi.core.common.preference.AndroidPreference.ObjectSetAsStringSet
 import tachiyomi.core.common.preference.AndroidPreference.StringPrimitive
 import tachiyomi.core.common.preference.AndroidPreference.StringSetPrimitive
 
@@ -77,6 +78,22 @@ class AndroidPreferenceStore(
         )
     }
 
+    override fun <T> getObjectSetFromStringSet(
+        key: String,
+        defaultValue: Set<T>,
+        serializer: (T) -> String,
+        deserializer: (String) -> T?,
+    ): Preference<Set<T>> {
+        return ObjectSetAsStringSet(
+            preferences = sharedPreferences,
+            keyFlow = keyFlow,
+            key = key,
+            defaultValue = defaultValue,
+            serializer = serializer,
+            deserializer = deserializer,
+        )
+    }
+
     override fun getAll(): Map<String, *> {
         return sharedPreferences.all ?: emptyMap<String, Any>()
     }

core/common/src/main/kotlin/tachiyomi/core/common/preference/InMemoryPreferenceStore.kt

@@ -48,7 +48,11 @@ class InMemoryPreferenceStore(
     }
 
     override fun getStringSet(key: String, defaultValue: Set<String>): Preference<Set<String>> {
-        TODO("Not yet implemented")
+        val default = InMemoryPreference(key, null, defaultValue)
+
+        @Suppress("UNCHECKED_CAST")
+        val data: Set<String>? = preferences[key]?.get() as? Set<String>
+        return if (data == null) default else InMemoryPreference(key, data, defaultValue)
     }
 
     @Suppress("UNCHECKED_CAST")
@@ -75,6 +79,18 @@ class InMemoryPreferenceStore(
         return if (data == null) default else InMemoryPreference(key, data, defaultValue)
     }
 
+    @Suppress("UNCHECKED_CAST")
+    override fun <T> getObjectSetFromStringSet(
+        key: String,
+        defaultValue: Set<T>,
+        serializer: (T) -> String,
+        deserializer: (String) -> T?,
+    ): Preference<Set<T>> {
+        val default = InMemoryPreference(key, null, defaultValue)
+        val data: Set<T>? = preferences[key]?.get() as? Set<T>
+        return if (data == null) default else InMemoryPreference(key, data, defaultValue)
+    }
+
     override fun getAll(): Map<String, *> {
         return preferences
     }

core/common/src/main/kotlin/tachiyomi/core/common/preference/PreferenceStore.kt

@@ -28,6 +28,13 @@ interface PreferenceStore {
         deserializer: (Int) -> T,
     ): Preference<T>
 
+    fun <T> getObjectSetFromStringSet(
+        key: String,
+        defaultValue: Set<T>,
+        serializer: (T) -> String,
+        deserializer: (String) -> T?,
+    ): Preference<Set<T>>
+
     fun getAll(): Map<String, *>
 }
 
@@ -60,3 +67,21 @@ inline fun <reified T : Enum<T>> PreferenceStore.getEnum(
         },
     )
 }
+
+inline fun <reified T : Enum<T>> PreferenceStore.getEnumSet(
+    key: String,
+    defaultValue: Set<T>,
+): Preference<Set<T>> {
+    return getObjectSetFromStringSet(
+        key = key,
+        defaultValue = defaultValue,
+        serializer = { it.name },
+        deserializer = {
+            try {
+                enumValueOf<T>(it)
+            } catch (_: IllegalArgumentException) {
+                null
+            }
+        },
+    )
+}