Update Dialer source to latest internal Google revision.

Previously, Android's Dialer app was developed in an internal Google
source control system and only exported to public during AOSP drops.

The Dialer team is now switching to a public development model similar
to the telephony team.

This CL represents all internal Google changes that were committed to
Dialer between the public O release and today's tip of tree on internal
master. This CL squashes those changes into a single commit.
In subsequent changes, changes will be exported on a per-commit basis.

Test: make, flash install, run
Merged-In: I45270eaa8ce732d71a1bd84b08c7fa0e99af3160
Change-Id: I529aaeb88535b9533c0ae4ef4e6c1222d4e0f1c8
PiperOrigin-RevId: 167068436

1 files changed, 125 insertions, 0 deletions

diff --git a/java/com/android/dialer/notification/DialerNotificationManager.java b/java/com/android/dialer/notification/DialerNotificationManager.java
new file mode 100644
index 000000000..0e3420169
--- /dev/null
+++ b/java/com/android/dialer/notification/DialerNotificationManager.java
@@ -0,0 +1,125 @@
+/*
+ * 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.dialer.notification;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.content.Context;
+import android.service.notification.StatusBarNotification;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v4.os.BuildCompat;
+import android.text.TextUtils;
+import android.util.Pair;
+import com.android.dialer.common.Assert;
+import com.android.dialer.common.LogUtil;
+
+/**
+ * Wrapper around the notification manager APIs. The wrapper ensures that channels are set and that
+ * notifications are limited to 10 per group.
+ */
+public final class DialerNotificationManager {
+  public static void notify(@NonNull Context context, int id, @NonNull Notification notification) {
+    Assert.isNotNull(context);
+    Assert.isNotNull(notification);
+    throw Assert.createUnsupportedOperationFailException("all notifications must have tags");
+  }
+
+  public static void notify(
+      @NonNull Context context, @NonNull String tag, int id, @NonNull Notification notification) {
+    Assert.isNotNull(context);
+    Assert.isNotNull(notification);
+    Assert.checkArgument(!TextUtils.isEmpty(tag));
+
+    if (BuildCompat.isAtLeastO()) {
+      Assert.checkArgument(!TextUtils.isEmpty(notification.getChannelId()));
+    }
+
+    getNotificationManager(context).notify(tag, id, notification);
+    NotificationThrottler.throttle(context, notification);
+  }
+
+  public static void cancel(@NonNull Context context, int id) {
+    Assert.isNotNull(context);
+    throw Assert.createUnsupportedOperationFailException(
+        "notification IDs are not unique across the app, a tag must be specified");
+  }
+
+  public static void cancel(@NonNull Context context, @NonNull String tag, int id) {
+    Assert.isNotNull(context);
+    Assert.checkArgument(!TextUtils.isEmpty(tag));
+
+    NotificationManager notificationManager = getNotificationManager(context);
+    StatusBarNotification[] notifications = notificationManager.getActiveNotifications();
+
+    String groupKey = findGroupKey(notifications, tag, id);
+    if (!TextUtils.isEmpty(groupKey)) {
+      Pair<StatusBarNotification, Integer> groupSummaryAndCount =
+          getGroupSummaryAndCount(notifications, groupKey);
+      if (groupSummaryAndCount.first != null && groupSummaryAndCount.second <= 1) {
+        LogUtil.i(
+            "DialerNotificationManager.cancel",
+            "last notification in group (%s) removed, also removing group summary",
+            groupKey);
+        notificationManager.cancel(
+            groupSummaryAndCount.first.getTag(), groupSummaryAndCount.first.getId());
+      }
+    }
+
+    notificationManager.cancel(tag, id);
+  }
+
+  public static StatusBarNotification[] getActiveNotifications(@NonNull Context context) {
+    Assert.isNotNull(context);
+    return getNotificationManager(context).getActiveNotifications();
+  }
+
+  @Nullable
+  private static String findGroupKey(
+      @NonNull StatusBarNotification[] notifications, @NonNull String tag, int id) {
+    for (StatusBarNotification notification : notifications) {
+      if (TextUtils.equals(tag, notification.getTag()) && id == notification.getId()) {
+        return notification.getNotification().getGroup();
+      }
+    }
+    return null;
+  }
+
+  @NonNull
+  private static Pair<StatusBarNotification, Integer> getGroupSummaryAndCount(
+      @NonNull StatusBarNotification[] notifications, @NonNull String groupKey) {
+    StatusBarNotification groupSummaryNotification = null;
+    int groupCount = 0;
+    for (StatusBarNotification notification : notifications) {
+      if (TextUtils.equals(groupKey, notification.getNotification().getGroup())) {
+        if ((notification.getNotification().flags & Notification.FLAG_GROUP_SUMMARY) != 0) {
+          groupSummaryNotification = notification;
+        } else {
+          groupCount++;
+        }
+      }
+    }
+    return new Pair<>(groupSummaryNotification, groupCount);
+  }
+
+  @NonNull
+  private static NotificationManager getNotificationManager(@NonNull Context context) {
+    return context.getSystemService(NotificationManager.class);
+  }
+
+  private DialerNotificationManager() {}
+}