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/BubblePreferenceController.java

@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2019 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.provider.Settings.Global.NOTIFICATION_BUBBLES;
+
+import android.annotation.Nullable;
+import android.content.Context;
+import android.provider.Settings;
+
+import com.android.settings.R;
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.notification.NotificationBackend;
+import com.android.settingslib.RestrictedSwitchPreference;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.fragment.app.FragmentManager;
+import androidx.preference.Preference;
+
+public class BubblePreferenceController extends NotificationPreferenceController
+        implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener {
+
+    private static final String TAG = "BubblePrefContr";
+    private static final String KEY = "bubble_pref";
+    @VisibleForTesting
+    static final int SYSTEM_WIDE_ON = 1;
+    @VisibleForTesting
+    static final int SYSTEM_WIDE_OFF = 0;
+
+    private FragmentManager mFragmentManager;
+    private boolean mIsAppPage;
+
+    public BubblePreferenceController(Context context, @Nullable FragmentManager fragmentManager,
+            NotificationBackend backend, boolean isAppPage) {
+        super(context, backend);
+        mFragmentManager = fragmentManager;
+        mIsAppPage = isAppPage;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY;
+    }
+
+    @Override
+    public boolean isAvailable() {
+        if (!super.isAvailable()) {
+            return false;
+        }
+        if (!mIsAppPage && !isGloballyEnabled()) {
+            return false;
+        }
+        if (mChannel != null) {
+            if (isDefaultChannel()) {
+                return true;
+            } else {
+                return mAppRow != null && mAppRow.allowBubbles;
+            }
+        }
+        return true;
+    }
+
+    public void updateState(Preference preference) {
+        if (mAppRow != null) {
+            RestrictedSwitchPreference pref = (RestrictedSwitchPreference) preference;
+            pref.setDisabledByAdmin(mAdmin);
+            if (mChannel != null) {
+                pref.setChecked(mChannel.canBubble() && isGloballyEnabled());
+                pref.setEnabled(!pref.isDisabledByAdmin());
+            } else {
+                pref.setChecked(mAppRow.allowBubbles && isGloballyEnabled());
+                pref.setSummary(mContext.getString(
+                        R.string.bubbles_app_toggle_summary, mAppRow.label));
+            }
+        }
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean value = (Boolean) newValue && isGloballyEnabled();
+        if (mChannel != null) {
+            mChannel.setAllowBubbles(value);
+            saveChannel();
+            return true;
+        } else if (mAppRow != null && mFragmentManager != null) {
+            RestrictedSwitchPreference pref = (RestrictedSwitchPreference) preference;
+            // if the global setting is off, toggling app level permission requires extra
+            // confirmation
+            if (!isGloballyEnabled() && !pref.isChecked()) {
+                new BubbleWarningDialogFragment()
+                        .setPkgInfo(mAppRow.pkg, mAppRow.uid)
+                        .show(mFragmentManager, "dialog");
+                return false;
+            } else {
+                mAppRow.allowBubbles = value;
+                mBackend.setAllowBubbles(mAppRow.pkg, mAppRow.uid, value);
+            }
+        }
+        return true;
+    }
+
+    private boolean isGloballyEnabled() {
+        return Settings.Global.getInt(mContext.getContentResolver(),
+                NOTIFICATION_BUBBLES, SYSTEM_WIDE_OFF) == SYSTEM_WIDE_ON;
+    }
+
+    // Used in app level prompt that confirms the user is ok with turning on bubbles
+    // globally. If they aren't, undo what
+    public static void revertBubblesApproval(Context mContext, String pkg, int uid) {
+        NotificationBackend backend = new NotificationBackend();
+        backend.setAllowBubbles(pkg, uid, false);
+        // changing the global settings will cause the observer on the host page to reload
+        // correct preference state
+        Settings.Global.putInt(mContext.getContentResolver(),
+                NOTIFICATION_BUBBLES, SYSTEM_WIDE_OFF);
+    }
+
+    // Apply global bubbles approval
+    public static void applyBubblesApproval(Context mContext, String pkg, int uid) {
+        NotificationBackend backend = new NotificationBackend();
+        backend.setAllowBubbles(pkg, uid, true);
+        // changing the global settings will cause the observer on the host page to reload
+        // correct preference state
+        Settings.Global.putInt(mContext.getContentResolver(),
+                NOTIFICATION_BUBBLES, SYSTEM_WIDE_ON);
+    }
+}