Fix #541

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

@@ -11,6 +11,13 @@ class ChaptersAdapter(val fragment: ChaptersFragment) : FlexibleAdapter<Chapters
         setHasStableIds(true)
     }
 
+    var items: List<ChapterModel>
+        get() = mItems
+        set(value) {
+            mItems = value
+            notifyDataSetChanged()
+        }
+
     override fun updateDataSet(param: String) {
     }
 
@@ -32,8 +39,4 @@ class ChaptersAdapter(val fragment: ChaptersFragment) : FlexibleAdapter<Chapters
         return mItems[position].id!!
     }
 
-    fun setItems(chapters: List<ChapterModel>) {
-        mItems = chapters
-        notifyDataSetChanged()
-    }
 }

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

@@ -182,7 +182,7 @@ class ChaptersFragment : BaseRxFragment<ChaptersPresenter>(), ActionMode.Callbac
             initialFetchChapters()
 
         destroyActionModeIfNeeded()
-        adapter.setItems(chapters)
+        adapter.items = chapters
     }
 
     private fun initialFetchChapters() {
@@ -360,7 +360,11 @@ class ChaptersFragment : BaseRxFragment<ChaptersPresenter>(), ActionMode.Callbac
     }
 
     fun markPreviousAsRead(chapter: ChapterModel) {
-        presenter.markPreviousChaptersAsRead(chapter)
+        val chapters = if (presenter.sortDescending()) adapter.items.reversed() else adapter.items
+        val chapterPos = chapters.indexOf(chapter)
+        if (chapterPos != -1) {
+            presenter.markChaptersRead(chapters.take(chapterPos), true)
+        }
     }
 
     fun downloadChapters(chapters: List<ChapterModel>) {

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

@@ -288,19 +288,6 @@ class ChaptersPresenter : BasePresenter<ChaptersFragment>() {
                 .subscribe()
     }
 
-    /**
-     * Mark the previous chapters to the selected one as read.
-     * @param chapter the selected chapter.
-     */
-    fun markPreviousChaptersAsRead(chapter: ChapterModel) {
-        Observable.from(chapters)
-                .filter { it.isRecognizedNumber && it.chapter_number < chapter.chapter_number }
-                .doOnNext { it.read = true }
-                .toList()
-                .flatMap { db.updateChaptersProgress(it).asRxObservable() }
-                .subscribe()
-    }
-
     /**
      * Downloads the given list of chapters with the manager.
      * @param chapters the list of chapters to download.