add option to skip chapters marked read (#1791)

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt

@@ -107,6 +107,8 @@ object PreferenceKeys {
 
     const val defaultCategory = "default_category"
 
+    const val skipRead = "skip_read"
+
     const val downloadBadge = "display_download_badge"
 
     @Deprecated("Use the preferences of the source")

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt

@@ -167,6 +167,8 @@ class PreferencesHelper(val context: Context) {
 
     fun defaultCategory() = prefs.getInt(Keys.defaultCategory, -1)
 
+    fun skipRead() = prefs.getBoolean(Keys.skipRead, false)
+
     fun migrateFlags() = rxPrefs.getInteger("migrate_flags", Int.MAX_VALUE)
 
     fun trustedSignatures() = rxPrefs.getStringSet("trusted_signatures", emptySet())

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderPresenter.kt

@@ -32,7 +32,7 @@ import timber.log.Timber
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import java.io.File
-import java.util.Date
+import java.util.*
 import java.util.concurrent.TimeUnit
 
 /**
@@ -84,12 +84,25 @@ class ReaderPresenter(
     private val chapterList by lazy {
         val manga = manga!!
         val dbChapters = db.getChapters(manga).executeAsBlocking()
+
         val selectedChapter = dbChapters.find { it.id == chapterId }
                 ?: error("Requested chapter of id $chapterId not found in chapter list")
 
+        val chaptersForReader =
+                if (preferences.skipRead()) {
+                    var list = dbChapters.filter { it -> !it.read }.toMutableList()
+                    val find = list.find { it.id == chapterId }
+                    if (find == null) {
+                        list.add(selectedChapter)
+                    }
+                    list
+                } else {
+                    dbChapters
+                }
+
         when (manga.sorting) {
-            Manga.SORTING_SOURCE -> ChapterLoadBySource().get(dbChapters)
-            Manga.SORTING_NUMBER -> ChapterLoadByNumber().get(dbChapters, selectedChapter)
+            Manga.SORTING_SOURCE -> ChapterLoadBySource().get(chaptersForReader)
+            Manga.SORTING_NUMBER -> ChapterLoadByNumber().get(chaptersForReader, selectedChapter)
             else -> error("Unknown sorting method")
         }.map(::ReaderChapter)
     }

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsReaderController.kt

@@ -63,6 +63,11 @@ class SettingsReaderController : SettingsController() {
             defaultValue = "500"
             summary = "%s"
         }
+        switchPreference {
+            key = Keys.skipRead
+            titleRes = R.string.pref_skip_read_chapters
+            defaultValue = false
+        }
         switchPreference {
             key = Keys.fullscreen
             titleRes = R.string.pref_fullscreen

app/src/main/res/values/strings.xml

@@ -178,6 +178,7 @@
     <string name="pref_custom_brightness">Use custom brightness</string>
     <string name="pref_custom_color_filter">Use custom color filter</string>
     <string name="pref_keep_screen_on">Keep screen on</string>
+    <string name="pref_skip_read_chapters">Skip chapters marked read</string>
     <string name="pref_reader_navigation">Navigation</string>
     <string name="pref_read_with_volume_keys">Volume keys</string>
     <string name="pref_read_with_volume_keys_inverted">Invert volume keys</string>