Reorganize notification Settings classes

The notification package was getting too big.

Test: make -j64 RunSettingsRoboTests
Fixes: 145224451
Change-Id: I25ba82f42f7a137d8adcce72dcf8089d0e018bdc

src/com/android/settings/notification/app/SoundPreferenceController.java

@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2017 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.app;
+
+import static android.media.AudioAttributes.USAGE_ALARM;
+import static android.media.AudioAttributes.USAGE_NOTIFICATION_RINGTONE;
+
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.content.Context;
+import android.content.Intent;
+import android.media.RingtoneManager;
+import android.net.Uri;
+import android.preference.PreferenceManager;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.notification.NotificationBackend;
+
+public class SoundPreferenceController extends NotificationPreferenceController
+        implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener,
+        PreferenceManager.OnActivityResultListener {
+
+    private static final String KEY_SOUND = "ringtone";
+    private final SettingsPreferenceFragment mFragment;
+    private final NotificationSettings.ImportanceListener mListener;
+    private NotificationSoundPreference mPreference;
+    protected static final int CODE = 200;
+
+    public SoundPreferenceController(Context context, SettingsPreferenceFragment hostFragment,
+            NotificationSettings.ImportanceListener importanceListener,
+            NotificationBackend backend) {
+        super(context, backend);
+        mFragment = hostFragment;
+        mListener = importanceListener;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_SOUND;
+    }
+
+    @Override
+    public boolean isAvailable() {
+        if (!super.isAvailable()) {
+            return false;
+        }
+        if (mChannel == null) {
+            return false;
+        }
+        return checkCanBeVisible(NotificationManager.IMPORTANCE_DEFAULT) && !isDefaultChannel();
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        mPreference = screen.findPreference(getPreferenceKey());
+    }
+
+    public void updateState(Preference preference) {
+        if (mAppRow!= null && mChannel != null) {
+            NotificationSoundPreference pref = (NotificationSoundPreference) preference;
+            pref.setEnabled(mAdmin == null);
+            pref.setRingtone(mChannel.getSound());
+        }
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        if (mChannel != null) {
+            mChannel.setSound((Uri) newValue, mChannel.getAudioAttributes());
+            saveChannel();
+        }
+        return true;
+    }
+
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        if (KEY_SOUND.equals(preference.getKey()) && mFragment != null) {
+            NotificationSoundPreference pref = (NotificationSoundPreference) preference;
+            if (mChannel != null && mChannel.getAudioAttributes() != null) {
+                if (USAGE_ALARM == mChannel.getAudioAttributes().getUsage()) {
+                    pref.setRingtoneType(RingtoneManager.TYPE_ALARM);
+                } else if (USAGE_NOTIFICATION_RINGTONE
+                        == mChannel.getAudioAttributes().getUsage()) {
+                    pref.setRingtoneType(RingtoneManager.TYPE_RINGTONE);
+                } else {
+                    pref.setRingtoneType(RingtoneManager.TYPE_NOTIFICATION);
+                }
+            }
+            pref.onPrepareRingtonePickerIntent(pref.getIntent());
+            mFragment.startActivityForResult(preference.getIntent(), CODE);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (CODE == requestCode) {
+            if (mPreference != null) {
+                mPreference.onActivityResult(requestCode, resultCode, data);
+            }
+            // the importance hasn't changed, but the importance description might as a result of
+            // user's selection.
+            mListener.onImportanceChanged();
+            return true;
+        }
+        return false;
+    }
+
+    protected static boolean hasValidSound(NotificationChannel channel) {
+        return channel != null
+                && channel.getSound() != null && !Uri.EMPTY.equals(channel.getSound());
+    }
+}