Allow each notification slot to contain any possible action

app/src/main/java/org/schabi/newpipe/player/notification/NotificationConstants.java

@@ -13,7 +13,7 @@ import org.schabi.newpipe.util.Localization;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
-import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 import java.util.SortedSet;
 import java.util.TreeSet;
@@ -65,10 +65,16 @@ public final class NotificationConstants {
     public static final int CLOSE = 11;
 
     @Retention(RetentionPolicy.SOURCE)
-    @IntDef({NOTHING, PREVIOUS, NEXT, REWIND, FORWARD, SMART_REWIND_PREVIOUS, SMART_FORWARD_NEXT,
+    @IntDef({NOTHING, PREVIOUS, NEXT, REWIND, FORWARD,
-            PLAY_PAUSE, PLAY_PAUSE_BUFFERING, REPEAT, SHUFFLE, CLOSE})
+            SMART_REWIND_PREVIOUS, SMART_FORWARD_NEXT, PLAY_PAUSE, PLAY_PAUSE_BUFFERING, REPEAT,
+            SHUFFLE, CLOSE})
     public @interface Action { }
 
+    @Action
+    public static final int[] ALL_ACTIONS = {NOTHING, PREVIOUS, NEXT, REWIND, FORWARD,
+            SMART_REWIND_PREVIOUS, SMART_FORWARD_NEXT, PLAY_PAUSE, PLAY_PAUSE_BUFFERING, REPEAT,
+            SHUFFLE, CLOSE};
+
     @DrawableRes
     public static final int[] ACTION_ICONS = {
             0,
@@ -95,16 +101,6 @@ public final class NotificationConstants {
             CLOSE,
     };
 
-    @Action
-    public static final int[][] SLOT_ALLOWED_ACTIONS = {
-            new int[] {PREVIOUS, REWIND, SMART_REWIND_PREVIOUS},
-            new int[] {REWIND, PLAY_PAUSE, PLAY_PAUSE_BUFFERING},
-            new int[] {NEXT, FORWARD, SMART_FORWARD_NEXT, PLAY_PAUSE, PLAY_PAUSE_BUFFERING},
-            new int[] {NOTHING, PREVIOUS, NEXT, REWIND, FORWARD, SMART_REWIND_PREVIOUS,
-                    SMART_FORWARD_NEXT, REPEAT, SHUFFLE, CLOSE},
-            new int[] {NOTHING, NEXT, FORWARD, SMART_FORWARD_NEXT, REPEAT, SHUFFLE, CLOSE},
-    };
-
     public static final int[] SLOT_PREF_KEYS = {
             R.string.notification_slot_0_key,
             R.string.notification_slot_1_key,
@@ -165,14 +161,11 @@ public final class NotificationConstants {
     /**
      * @param context the context to use
      * @param sharedPreferences the shared preferences to query values from
-     * @param slotCount remove indices >= than this value (set to {@code 5} to do nothing, or make
-     *                  it lower if there are slots with empty actions)
      * @return a sorted list of the indices of the slots to use as compact slots
      */
-    public static List<Integer> getCompactSlotsFromPreferences(
+    public static Collection<Integer> getCompactSlotsFromPreferences(
             @NonNull final Context context,
-            final SharedPreferences sharedPreferences,
+            final SharedPreferences sharedPreferences) {
-            final int slotCount) {
         final SortedSet<Integer> compactSlots = new TreeSet<>();
         for (int i = 0; i < 3; i++) {
             final int compactSlot = sharedPreferences.getInt(
@@ -180,14 +173,14 @@ public final class NotificationConstants {
 
             if (compactSlot == Integer.MAX_VALUE) {
                 // settings not yet populated, return default values
-                return new ArrayList<>(SLOT_COMPACT_DEFAULTS);
+                return SLOT_COMPACT_DEFAULTS;
             }
 
-            // a negative value (-1) is set when the user does not want a particular compact slot
+            if (compactSlot >= 0) {
-            if (compactSlot >= 0 && compactSlot < slotCount) {
+                // compact slot is < 0 if there are less than 3 checked checkboxes
                 compactSlots.add(compactSlot);
             }
         }
-        return new ArrayList<>(compactSlots);
+        return compactSlots;
     }
 }

app/src/main/java/org/schabi/newpipe/player/notification/NotificationUtil.java

@@ -23,6 +23,8 @@ import org.schabi.newpipe.player.Player;
 import org.schabi.newpipe.player.mediasession.MediaSessionPlayerUi;
 import org.schabi.newpipe.util.NavigationHelper;
 
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
@@ -101,21 +103,7 @@ public final class NotificationUtil {
                 new NotificationCompat.Builder(player.getContext(),
                 player.getContext().getString(R.string.notification_channel_id));
 
-        initializeNotificationSlots();
+        final int[] compactSlots = initializeNotificationSlots();
-
-        // count the number of real slots, to make sure compact slots indices are not out of bound
-        int nonNothingSlotCount = 5;
-        if (notificationSlots[3] == NotificationConstants.NOTHING) {
-            --nonNothingSlotCount;
-        }
-        if (notificationSlots[4] == NotificationConstants.NOTHING) {
-            --nonNothingSlotCount;
-        }
-
-        // build the compact slot indices array (need code to convert from Integer... because Java)
-        final List<Integer> compactSlotList = NotificationConstants.getCompactSlotsFromPreferences(
-                player.getContext(), player.getPrefs(), nonNothingSlotCount);
-        final int[] compactSlots = compactSlotList.stream().mapToInt(Integer::intValue).toArray();
 
         final MediaStyle mediaStyle = new MediaStyle().setShowActionsInCompactView(compactSlots);
         player.UIs()
@@ -209,12 +197,35 @@ public final class NotificationUtil {
     // ACTIONS
     /////////////////////////////////////////////////////
 
-    private void initializeNotificationSlots() {
+    /**
+     * The compact slots array from settings contains indices from 0 to 4, each referring to one of
+     * the five actions configurable by the user. However, if the user sets an action to "Nothing",
+     * then all of the actions coming after will have a "settings index" different than the index
+     * of the corresponding action when sent to the system.
+     *
+     * @return the indices of compact slots referred to the list of non-nothing actions that will be
+     *         sent to the system
+     */
+    private int[] initializeNotificationSlots() {
+        final Collection<Integer> settingsCompactSlots = NotificationConstants
+                .getCompactSlotsFromPreferences(player.getContext(), player.getPrefs());
+        final List<Integer> adjustedCompactSlots = new ArrayList<>();
+
+        int nonNothingIndex = 0;
         for (int i = 0; i < 5; ++i) {
             notificationSlots[i] = player.getPrefs().getInt(
                     player.getContext().getString(NotificationConstants.SLOT_PREF_KEYS[i]),
                     NotificationConstants.SLOT_DEFAULTS[i]);
+
+            if (notificationSlots[i] != NotificationConstants.NOTHING) {
+                if (settingsCompactSlots.contains(i)) {
+                    adjustedCompactSlots.add(nonNothingIndex);
+                }
+                nonNothingIndex += 1;
+            }
         }
+
+        return adjustedCompactSlots.stream().mapToInt(Integer::intValue).toArray();
     }
 
     @SuppressLint("RestrictedApi")

app/src/main/java/org/schabi/newpipe/settings/custom/NotificationActionsPreference.java

@@ -20,6 +20,7 @@ import org.schabi.newpipe.App;
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.player.notification.NotificationConstants;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.IntStream;
 
@@ -67,8 +68,8 @@ public class NotificationActionsPreference extends Preference {
     ////////////////////////////////////////////////////////////////////////////
 
     private void setupActions(@NonNull final View view) {
-        compactSlots = NotificationConstants.getCompactSlotsFromPreferences(getContext(),
+        compactSlots = new ArrayList<>(NotificationConstants.getCompactSlotsFromPreferences(
-                getSharedPreferences(), 5);
+                getContext(), getSharedPreferences()));
         notificationSlots = IntStream.range(0, 5)
                 .mapToObj(i -> new NotificationSlot(getContext(), getSharedPreferences(), i, view,
                         compactSlots.contains(i), this::onToggleCompactSlot))

app/src/main/java/org/schabi/newpipe/settings/custom/NotificationSlot.java

@@ -130,13 +130,13 @@ class NotificationSlot {
                 .create();
 
         final View.OnClickListener radioButtonsClickListener = v -> {
-            selectedAction = NotificationConstants.SLOT_ALLOWED_ACTIONS[i][v.getId()];
+            selectedAction = NotificationConstants.ALL_ACTIONS[v.getId()];
             updateInfo();
             alertDialog.dismiss();
         };
 
-        for (int id = 0; id < NotificationConstants.SLOT_ALLOWED_ACTIONS[i].length; ++id) {
+        for (int id = 0; id < NotificationConstants.ALL_ACTIONS.length; ++id) {
-            final int action = NotificationConstants.SLOT_ALLOWED_ACTIONS[i][id];
+            final int action = NotificationConstants.ALL_ACTIONS[id];
             final RadioButton radioButton = ListRadioIconItemBinding.inflate(inflater)
                     .getRoot();