add pref to clear bookmarks

app/src/main/java/com/github/libretube/constants/PreferenceKeys.kt

@@ -111,6 +111,7 @@ object PreferenceKeys {
     const val CLEAR_WATCH_POSITIONS = "clear_watch_positions"
     const val SHARE_WITH_TIME_CODE = "share_with_time_code"
     const val CONFIRM_UNSUBSCRIBE = "confirm_unsubscribing"
+    const val CLEAR_BOOKMARKS = "clear_bookmarks"
 
     /**
      * History

app/src/main/java/com/github/libretube/ui/adapters/PlaylistAdapter.kt

@@ -10,6 +10,7 @@ import androidx.fragment.app.FragmentManager
 import androidx.recyclerview.widget.RecyclerView
 import com.github.libretube.api.RetrofitInstance
 import com.github.libretube.api.obj.PlaylistId
+import com.github.libretube.api.obj.StreamItem
 import com.github.libretube.databinding.PlaylistRowBinding
 import com.github.libretube.extensions.TAG
 import com.github.libretube.extensions.toID
@@ -27,7 +28,7 @@ import retrofit2.HttpException
 import java.io.IOException
 
 class PlaylistAdapter(
-    private val videoFeed: MutableList<com.github.libretube.api.obj.StreamItem>,
+    private val videoFeed: MutableList<StreamItem>,
     private val playlistId: String,
     private val isOwner: Boolean,
     private val childFragmentManager: FragmentManager
@@ -37,7 +38,7 @@ class PlaylistAdapter(
         return videoFeed.size
     }
 
-    fun updateItems(newItems: List<com.github.libretube.api.obj.StreamItem>) {
+    fun updateItems(newItems: List<StreamItem>) {
         val oldSize = videoFeed.size
         videoFeed.addAll(newItems)
         notifyItemRangeInserted(oldSize, videoFeed.size)

app/src/main/java/com/github/libretube/ui/preferences/HistorySettings.kt

@@ -44,6 +44,14 @@ class HistorySettings : BasePreferenceFragment() {
             }
             true
         }
+
+        val resetBookmarks = findPreference<Preference>(PreferenceKeys.CLEAR_BOOKMARKS)
+        resetBookmarks?.setOnPreferenceClickListener {
+            showClearDialog(R.string.clear_bookmarks) {
+                Database.playlistBookmarkDao().deleteAll()
+            }
+            true
+        }
     }
 
     private fun showClearDialog(title: Int, action: () -> Unit) {

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

@@ -383,6 +383,7 @@
     <string name="trending">What\'s trending now</string>
     <string name="bookmarks">Bookmarks</string>
     <string name="bookmark">Bookmark</string>
+    <string name="clear_bookmarks">Clear bookmarks</string>
 
     <!-- Notification channel strings -->
     <string name="download_channel_name">Download Service</string>

app/src/main/res/xml/history_settings.xml

@@ -59,4 +59,13 @@
 
     </PreferenceCategory>
 
+    <PreferenceCategory app:title="@string/bookmarks">
+
+        <PreferenceCategory
+            android:title="@string/clear_bookmarks"
+            app:icon="@drawable/ic_bookmark"
+            app:key="clear_bookmarks" />
+
+    </PreferenceCategory>
+
 </PreferenceScreen>