[LE Audio] Add entry point in Media Volume slice for broadcast sink

Bug: 228274114
Test: make RunSettingsRoboTests
Test: Manual test
Change-Id: I331232c30291348faf7166d4de8060a1cfe12bff

res/values/styles.xml

@@ -579,6 +579,9 @@
         <!-- Padding for indeterminate progress bar -->
         <item name="progressBarStartPadding">12dp</item>
         <item name="progressBarEndPadding">16dp</item>
+
+        <!-- Title icon size -->
+        <item name="iconSize">25dp</item>
     </style>
 
     <style name="SliceRow.Slider.LargeIcon">

src/com/android/settings/core/SliderPreferenceController.java

@@ -17,6 +17,7 @@ package com.android.settings.core;
 import android.content.Context;
 
 import androidx.preference.Preference;
+import androidx.slice.builders.SliceAction;
 
 import com.android.settings.slices.SliceData;
 
@@ -70,4 +71,11 @@ public abstract class SliderPreferenceController extends BasePreferenceControlle
     public int getSliceType() {
         return SliceData.SliceType.SLIDER;
     }
+
+    /**
+     * @return the SliceAction for the end item of the slice.
+     */
+    public SliceAction getSliceEndItem(Context context) {
+        return null;
+    }
 }

src/com/android/settings/media/MediaOutputIndicatorWorker.java

@@ -34,6 +34,7 @@ import androidx.annotation.Nullable;
 import com.android.settings.bluetooth.Utils;
 import com.android.settings.slices.SliceBackgroundWorker;
 import com.android.settingslib.bluetooth.BluetoothCallback;
+import com.android.settingslib.bluetooth.LocalBluetoothLeBroadcast;
 import com.android.settingslib.bluetooth.LocalBluetoothManager;
 import com.android.settingslib.media.LocalMediaManager;
 import com.android.settingslib.media.MediaDevice;
@@ -126,7 +127,7 @@ public class MediaOutputIndicatorWorker extends SliceBackgroundWorker implements
     }
 
     @Nullable
-    MediaController getActiveLocalMediaController() {
+    public MediaController getActiveLocalMediaController() {
         return MediaOutputUtils.getActiveLocalMediaController(mContext.getSystemService(
                 MediaSessionManager.class));
     }
@@ -156,7 +157,7 @@ public class MediaOutputIndicatorWorker extends SliceBackgroundWorker implements
         return mMediaDevices;
     }
 
-    MediaDevice getCurrentConnectedMediaDevice() {
+    public MediaDevice getCurrentConnectedMediaDevice() {
         return mLocalMediaManager.getCurrentConnectedDevice();
     }
 
@@ -164,6 +165,15 @@ public class MediaOutputIndicatorWorker extends SliceBackgroundWorker implements
         return mPackageName;
     }
 
+    public boolean isDeviceBroadcasting() {
+        LocalBluetoothLeBroadcast broadcast =
+                mLocalBluetoothManager.getProfileManager().getLeAudioBroadcastProfile();
+        if (broadcast == null) {
+            return false;
+        }
+        return broadcast.isEnabled(null);
+    }
+
     private class DevicesChangedBroadcastReceiver extends BroadcastReceiver {
         @Override
         public void onReceive(Context context, Intent intent) {

src/com/android/settings/notification/MediaVolumePreferenceController.java

@@ -16,16 +16,32 @@
 
 package com.android.settings.notification;
 
+import android.app.PendingIntent;
 import android.content.Context;
+import android.content.Intent;
+import android.graphics.drawable.Drawable;
 import android.media.AudioManager;
+import android.net.Uri;
 import android.text.TextUtils;
+import android.util.Log;
+
+import androidx.core.graphics.drawable.IconCompat;
+import androidx.slice.builders.ListBuilder;
+import androidx.slice.builders.SliceAction;
 
 import com.android.settings.R;
+import com.android.settings.Utils;
+import com.android.settings.media.MediaOutputIndicatorWorker;
+import com.android.settings.slices.CustomSliceRegistry;
+import com.android.settings.slices.SliceBackgroundWorker;
+import com.android.settingslib.media.MediaDevice;
 
 public class MediaVolumePreferenceController extends VolumeSeekBarPreferenceController {
-
+    private static final String TAG = "MediaVolumePreCtrl";
     private static final String KEY_MEDIA_VOLUME = "media_volume";
 
+    private MediaOutputIndicatorWorker mWorker;
+
     public MediaVolumePreferenceController(Context context) {
         super(context, KEY_MEDIA_VOLUME);
     }
@@ -66,4 +82,66 @@ public class MediaVolumePreferenceController extends VolumeSeekBarPreferenceCont
     public int getMuteIcon() {
         return R.drawable.ic_media_stream_off;
     }
+
+    private boolean isSupportEndItem() {
+        return getWorker() != null
+            && getWorker().getActiveLocalMediaController() != null
+            && isConnectedBLEDevice();
+    }
+
+    private boolean isConnectedBLEDevice() {
+        final MediaDevice device = getWorker().getCurrentConnectedMediaDevice();
+        if (device != null) {
+            return device.isBLEDevice();
+        }
+        return false;
+    }
+
+    @Override
+    public SliceAction getSliceEndItem(Context context) {
+        if (!isSupportEndItem()) {
+            Log.d(TAG, "The slice doesn't support end item");
+            return null;
+        }
+
+        final Intent intent = new Intent();
+        if (getWorker().isDeviceBroadcasting()) {
+            // TODO(b/229577323) : Get the intent action for the Media Output Broadcast Dialog
+            //  in SystemUI
+        } else {
+            // TODO(b/229577518) : Get the intent action of the Bluetooth Broadcast Dialog
+            //  for user to choose the action
+        }
+        final PendingIntent pi = PendingIntent.getBroadcast(context, 0 /* requestCode */, intent,
+                PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_MUTABLE);
+        final IconCompat icon = getBroadcastIcon(context);
+
+        return SliceAction.createDeeplink(pi, icon, ListBuilder.ICON_IMAGE, getPreferenceKey());
+    }
+
+    private IconCompat getBroadcastIcon(Context context) {
+        final Drawable drawable = context.getDrawable(
+                com.android.settingslib.R.drawable.settings_input_antenna);
+        if (drawable != null) {
+            drawable.setTint(Utils.getColorAccentDefaultColor(context));
+            return Utils.createIconWithDrawable(drawable);
+        }
+        return null;
+    }
+
+    private MediaOutputIndicatorWorker getWorker() {
+        if (mWorker == null) {
+            mWorker = SliceBackgroundWorker.getInstance(getUri());
+        }
+        return mWorker;
+    }
+
+    private Uri getUri() {
+        return CustomSliceRegistry.VOLUME_MEDIA_URI;
+    }
+
+    @Override
+    public Class<? extends SliceBackgroundWorker> getBackgroundWorkerClass() {
+        return MediaOutputIndicatorWorker.class;
+    }
 }

src/com/android/settings/panel/PanelSlicesAdapter.java

@@ -143,6 +143,9 @@ public class PanelSlicesAdapter
                 sliceView.setVisibility(View.GONE);
             }
 
+            // Add divider for the end icon
+            sliceView.setShowActionDividers(true);
+
             // Log Panel interaction
             sliceView.setOnSliceActionListener(
                     ((eventInfo, sliceItem) -> {

src/com/android/settings/slices/SliceBuilderUtils.java

@@ -339,6 +339,11 @@ public class SliceBuilderUtils {
             inputRangeBuilder.setSubtitle(subtitleText);
         }
 
+        SliceAction endItemAction = sliderController.getSliceEndItem(context);
+        if (endItemAction != null) {
+            inputRangeBuilder.addEndItem(endItemAction);
+        }
+
         return new ListBuilder(context, sliceData.getUri(), ListBuilder.INFINITY)
                 .setAccentColor(color)
                 .addInputRange(inputRangeBuilder)