Adding hover state for brightness slider in quick settings

Test: BrightnessSliderScreenshotTest
Fixes: 283799663
Change-Id: I94fe17c633f219413225f7b2e9c2350bc89b5491

packages/SystemUI/res/color/brightness_slider_overlay_color.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2023 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_pressed="true" android:color="?attr/onShadeActive" android:alpha="0.12" />
+    <item android:state_hovered="true" android:color="?attr/onShadeActive" android:alpha="0.09" />
+    <item android:color="@color/transparent" />
+</selector>

packages/SystemUI/res/drawable/brightness_progress_full_drawable.xml

@@ -26,6 +26,13 @@
             <corners android:radius="@dimen/rounded_slider_corner_radius"/>
         </shape>
     </item>
+    <item>
+        <shape>
+            <corners android:radius="@dimen/rounded_slider_corner_radius" />
+            <size android:height="@dimen/rounded_slider_height" />
+            <solid android:color="@color/brightness_slider_overlay_color" />
+        </shape>
+    </item>
     <item
         android:id="@+id/slider_icon"
         android:gravity="center_vertical|right"

packages/SystemUI/res/layout/quick_settings_brightness_dialog.xml

@@ -34,5 +34,6 @@
             android:paddingEnd="0dp"
             android:progressDrawable="@drawable/brightness_progress_drawable"
             android:splitTrack="false"
+            android:clickable="true"
         />
     </com.android.systemui.settings.brightness.BrightnessSliderView>