Filter local manga as downloaded (#1674)

* Filter local manga as downloaded

* Filter local manga chapters as downloaded

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryPresenter.kt

@@ -126,6 +126,10 @@ class LibraryPresenter(
 
             // Filter when there are no downloads.
             if (filterDownloaded) {
+                // Local manga are always downloaded
+                if (item.manga.source == LocalSource.ID) {
+                    return@f true
+                }
                 // Don't bother with directory checking if download count has been set.
                 if (item.downloadCount != -1) {
                     return@f item.downloadCount > 0

app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/ChaptersPresenter.kt

@@ -9,6 +9,7 @@ import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.download.DownloadManager
 import eu.kanade.tachiyomi.data.download.model.Download
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.source.LocalSource
 import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.ui.base.presenter.BasePresenter
 import eu.kanade.tachiyomi.util.isNullOrUnsubscribed
@@ -179,7 +180,7 @@ class ChaptersPresenter(
             observable = observable.filter { it.read }
         }
         if (onlyDownloaded()) {
-            observable = observable.filter { it.isDownloaded }
+            observable = observable.filter { it.isDownloaded || it.manga.source == LocalSource.ID }
         }
         if (onlyBookmarked()) {
             observable = observable.filter { it.bookmark }