QS Talkback bug fixes

Fixes a couple of Talkback bugs in QSCustomizer:
* List scrolling
* Focusing on correct element when "move" is selected.
* No reading "double tap and hold for long press".

Also, Dark Mode tile made a switch

Fixes: 145259342
Fixes: 145257223
Test: manual using TB
Change-Id: I782dad4e1a411972c40e37abc31eabb3fd1f8ea2

packages/SystemUI/res/layout/qs_customize_panel_content.xml

@@ -52,7 +52,7 @@
             android:scrollIndicators="top"
             android:scrollbars="vertical"
             android:scrollbarStyle="outsideOverlay"
-            android:importantForAccessibility="no" />
+            android:importantForAccessibility="auto" />
     </com.android.keyguard.AlphaOptimizedLinearLayout>
 
     <View

packages/SystemUI/src/com/android/systemui/qs/customize/CustomizeTileView.java

@@ -49,4 +49,9 @@ public class CustomizeTileView extends QSTileView {
     protected boolean animationsEnabled() {
         return false;
     }
+
+    @Override
+    public boolean isLongClickable() {
+        return false;
+    }
 }

packages/SystemUI/src/com/android/systemui/qs/customize/QSCustomizer.java

@@ -32,6 +32,7 @@ import android.widget.LinearLayout;
 import android.widget.Toolbar;
 import android.widget.Toolbar.OnMenuItemClickListener;
 
+import androidx.core.view.accessibility.AccessibilityNodeInfoCompat;
 import androidx.recyclerview.widget.DefaultItemAnimator;
 import androidx.recyclerview.widget.GridLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
@@ -118,7 +119,13 @@ public class QSCustomizer extends LinearLayout implements OnMenuItemClickListene
         mTileQueryHelper.setListener(mTileAdapter);
         mRecyclerView.setAdapter(mTileAdapter);
         mTileAdapter.getItemTouchHelper().attachToRecyclerView(mRecyclerView);
-        GridLayoutManager layout = new GridLayoutManager(getContext(), 3);
+        GridLayoutManager layout = new GridLayoutManager(getContext(), 3) {
+            @Override
+            public void onInitializeAccessibilityNodeInfoForItem(RecyclerView.Recycler recycler,
+                    RecyclerView.State state, View host, AccessibilityNodeInfoCompat info) {
+                // Do not read row and column every time it changes.
+            }
+        };
         layout.setSpanSizeLookup(mTileAdapter.getSizeLookup());
         mRecyclerView.setLayoutManager(layout);
         mRecyclerView.addItemDecoration(mTileAdapter.getItemDecoration());

packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java

@@ -238,9 +238,21 @@ public class TileAdapter extends RecyclerView.Adapter<Holder> implements TileSta
         return true;
     }
 
+    private void setSelectableForHeaders(View view) {
+        if (mAccessibilityManager.isTouchExplorationEnabled()) {
+            final boolean selectable = mAccessibilityAction == ACTION_NONE;
+            view.setFocusable(selectable);
+            view.setImportantForAccessibility(selectable
+                    ? View.IMPORTANT_FOR_ACCESSIBILITY_YES
+                    : View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS);
+            view.setFocusableInTouchMode(selectable);
+        }
+    }
+
     @Override
     public void onBindViewHolder(final Holder holder, int position) {
         if (holder.getItemViewType() == TYPE_HEADER) {
+            setSelectableForHeaders(holder.itemView);
             return;
         }
         if (holder.getItemViewType() == TYPE_DIVIDER) {
@@ -260,6 +272,8 @@ public class TileAdapter extends RecyclerView.Adapter<Holder> implements TileSta
             }
 
             ((TextView) holder.itemView.findViewById(android.R.id.title)).setText(titleText);
+            setSelectableForHeaders(holder.itemView);
+
             return;
         }
         if (holder.getItemViewType() == TYPE_ACCESSIBLE_DROP) {
@@ -306,6 +320,7 @@ public class TileAdapter extends RecyclerView.Adapter<Holder> implements TileSta
             holder.mTileView.setImportantForAccessibility(selectable
                     ? View.IMPORTANT_FOR_ACCESSIBILITY_YES
                     : View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS);
+            holder.mTileView.setFocusableInTouchMode(selectable);
             if (selectable) {
                 holder.mTileView.setOnClickListener(new OnClickListener() {
                     @Override

packages/SystemUI/src/com/android/systemui/qs/tiles/UiModeNightTile.java

@@ -22,6 +22,7 @@ import android.content.res.Configuration;
 import android.provider.Settings;
 import android.service.quicksettings.Tile;
 import android.text.TextUtils;
+import android.widget.Switch;
 
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.systemui.R;
@@ -112,6 +113,7 @@ public class UiModeNightTile extends QSTileImpl<QSTile.BooleanState> implements
             state.state = state.value ? Tile.STATE_ACTIVE : Tile.STATE_INACTIVE;
         }
         state.showRippleEffect = false;
+        state.expandedAccessibilityClassName = Switch.class.getName();
     }
 
     @Override