Add list of selected/excluded convos to bubble settings

* Some changes to extend AppConversationListPrefController
* When a user removes something from the selected or
  excluded list that resets the channel setting

Bug: 148619540
Test: make -j40 RunSettingsRoboTests ROBOTEST_FILTER="Bubble"
Change-Id: I7a9ed7b70208dbdefca6c3c09d34d55c65f06408

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

@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+package com.android.settings.notification;
+
+import static android.app.NotificationChannel.DEFAULT_ALLOW_BUBBLE;
+import static android.app.NotificationManager.BUBBLE_PREFERENCE_ALL;
+import static android.app.NotificationManager.BUBBLE_PREFERENCE_NONE;
+import static android.app.NotificationManager.BUBBLE_PREFERENCE_SELECTED;
+
+import android.annotation.Nullable;
+import android.app.NotificationChannel;
+import android.app.NotificationChannelGroup;
+import android.content.Context;
+import android.content.pm.ShortcutInfo;
+import android.graphics.drawable.Drawable;
+import android.service.notification.ConversationChannelWrapper;
+import android.view.View;
+import android.widget.ImageView;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceViewHolder;
+
+import com.android.settings.R;
+import com.android.settings.notification.app.AppConversationListPreferenceController;
+import com.android.settingslib.RestrictedLockUtils;
+
+import com.google.common.annotations.VisibleForTesting;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Displays a list of conversations that have either been selected or excluded from bubbling.
+ */
+public class AppBubbleListPreferenceController extends AppConversationListPreferenceController {
+
+    private static final String KEY = "bubble_conversations";
+
+    public AppBubbleListPreferenceController(Context context, NotificationBackend backend) {
+        super(context, backend);
+    }
+
+    @Override
+    public void onResume(NotificationBackend.AppRow appRow,
+            @Nullable NotificationChannel channel, @Nullable NotificationChannelGroup group,
+            Drawable conversationDrawable,
+            ShortcutInfo conversationInfo,
+            RestrictedLockUtils.EnforcedAdmin admin) {
+        super.onResume(appRow, channel, group, conversationDrawable, conversationInfo, admin);
+        // In case something changed in the foreground (e.g. via bubble button on notification)
+        loadConversationsAndPopulate();
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY;
+    }
+
+    @Override
+    public boolean isAvailable() {
+        if (!super.isAvailable()) {
+            return false;
+        }
+        if (mAppRow.bubblePreference == BUBBLE_PREFERENCE_NONE) {
+            return false;
+        }
+        return true;
+    }
+
+    @VisibleForTesting
+    @Override
+    public List<ConversationChannelWrapper> filterAndSortConversations(
+            List<ConversationChannelWrapper> conversations) {
+        return conversations.stream()
+                .sorted(mConversationComparator)
+                .filter((c) -> {
+                    if (mAppRow.bubblePreference == BUBBLE_PREFERENCE_SELECTED) {
+                        return c.getNotificationChannel().canBubble();
+                    } else if (mAppRow.bubblePreference == BUBBLE_PREFERENCE_ALL) {
+                        return c.getNotificationChannel().getAllowBubbles() == 0;
+                    }
+                    return false;
+                })
+                .collect(Collectors.toList());
+    }
+
+    @Override
+    protected int getTitleResId() {
+        // TODO: possible to left align like mocks?
+        return mAppRow.bubblePreference == BUBBLE_PREFERENCE_SELECTED
+                ? R.string.bubble_app_setting_selected_conversation_title
+                : R.string.bubble_app_setting_excluded_conversation_title;
+    }
+
+    @VisibleForTesting
+    @Override
+    public Preference createConversationPref(final ConversationChannelWrapper conversation) {
+        final ConversationPreference pref = new ConversationPreference(mContext);
+        populateConversationPreference(conversation, pref);
+        pref.setOnClickListener((v) -> {
+            conversation.getNotificationChannel().setAllowBubbles(DEFAULT_ALLOW_BUBBLE);
+            mBackend.updateChannel(mAppRow.pkg, mAppRow.uid, conversation.getNotificationChannel());
+            mPreference.removePreference(pref);
+            if (mPreference.getPreferenceCount() == 0) {
+                mPreference.setVisible(false);
+            }
+        });
+        return pref;
+    }
+
+    /** Simple preference with a 'x' button at the end. */
+    @VisibleForTesting
+    public static class ConversationPreference extends Preference implements View.OnClickListener {
+
+        View.OnClickListener mOnClickListener;
+
+        ConversationPreference(Context context) {
+            super(context);
+            setWidgetLayoutResource(R.layout.bubble_conversation_remove_button);
+        }
+
+        @Override
+        public void onBindViewHolder(final PreferenceViewHolder holder) {
+            super.onBindViewHolder(holder);
+            ImageView view =  holder.itemView.findViewById(R.id.button);
+            view.setOnClickListener(mOnClickListener);
+        }
+
+        public void setOnClickListener(View.OnClickListener listener) {
+            mOnClickListener = listener;
+        }
+
+        @Override
+        public void onClick(View v) {
+            if (mOnClickListener != null) {
+                mOnClickListener.onClick(v);
+            }
+        }
+    }
+}