Bookmark via reader (closes #1413)

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

@@ -208,6 +208,11 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
      */
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         menuInflater.inflate(R.menu.reader, menu)
+
+        val isChapterBookmarked = presenter?.getCurrentChapter()?.chapter?.bookmark ?: false
+        menu.findItem(R.id.action_bookmark).isVisible = !isChapterBookmarked
+        menu.findItem(R.id.action_remove_bookmark).isVisible = isChapterBookmarked
+
         return true
     }
 
@@ -217,6 +222,14 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
      */
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
+            R.id.action_bookmark -> {
+                presenter.bookmarkCurrentChapter(true)
+                invalidateOptionsMenu()
+            }
+            R.id.action_remove_bookmark -> {
+                presenter.bookmarkCurrentChapter(false)
+                invalidateOptionsMenu()
+            }
             R.id.action_settings -> ReaderSettingsSheet(this).show()
             R.id.action_custom_filter -> ReaderColorFilterSheet(this).show()
         }
@@ -402,6 +415,9 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
         please_wait.gone()
         viewer?.setChapters(viewerChapters)
         toolbar.subtitle = viewerChapters.currChapter.chapter.name
+
+        // Invalidate menu to show proper chapter bookmark state
+        invalidateOptionsMenu()
     }
 
     /**

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

@@ -407,6 +407,19 @@ class ReaderPresenter(
         return viewerChaptersRelay.value?.currChapter
     }
 
+    /**
+     * Bookmarks the currently active chapter.
+     */
+    fun bookmarkCurrentChapter(bookmarked: Boolean) {
+        if (getCurrentChapter()?.chapter == null) {
+            return
+        }
+
+        val chapter = getCurrentChapter()?.chapter!!
+        chapter.bookmark = bookmarked
+        db.updateChapterProgress(chapter).executeAsBlocking()
+    }
+
     /**
      * Returns the viewer position used by this manga or the default one.
      */

app/src/main/res/menu/reader.xml

@@ -2,6 +2,20 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
+    <item
+        android:id="@+id/action_bookmark"
+        android:icon="@drawable/ic_bookmark_border_24dp"
+        android:title="@string/action_bookmark"
+        app:iconTint="?attr/colorOnPrimary"
+        app:showAsAction="ifRoom" />
+
+    <item
+        android:id="@+id/action_remove_bookmark"
+        android:icon="@drawable/ic_bookmark_24dp"
+        android:title="@string/action_remove_bookmark"
+        app:iconTint="?attr/colorOnPrimary"
+        app:showAsAction="ifRoom" />
+
     <item
         android:id="@+id/action_custom_filter"
         android:icon="@drawable/ic_brightness_4_24dp"