1 files changed, 128 insertions, 0 deletions
diff --git a/java/com/android/dialer/app/voicemail/LegacyVoicemailNotificationReceiver.java b/java/com/android/dialer/app/voicemail/LegacyVoicemailNotificationReceiver.java
new file mode 100644
index 000000000..9d07ec561
--- /dev/null
+++ b/java/com/android/dialer/app/voicemail/LegacyVoicemailNotificationReceiver.java
@@ -0,0 +1,128 @@
+/*
+ * 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.app.voicemail;
+
+import android.annotation.TargetApi;
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Build.VERSION_CODES;
+import android.preference.PreferenceManager;
+import android.support.v4.os.BuildCompat;
+import android.support.v4.os.UserManagerCompat;
+import android.telecom.PhoneAccountHandle;
+import android.telephony.TelephonyManager;
+import com.android.dialer.app.calllog.DefaultVoicemailNotifier;
+import com.android.dialer.common.Assert;
+import com.android.dialer.common.LogUtil;
+import com.android.dialer.common.PerAccountSharedPreferences;
+import com.android.voicemail.VoicemailComponent;
+
+/**
+ * Receives {@link TelephonyManager#ACTION_SHOW_VOICEMAIL_NOTIFICATION}, and forwards to {@link
+ * DefaultVoicemailNotifier}. Will ignore the notification if the account has visual voicemail.
+ * Legacy voicemail is the traditional, non-visual, dial-in voicemail.
+ */
+@TargetApi(VERSION_CODES.O)
+public class LegacyVoicemailNotificationReceiver extends BroadcastReceiver {
+
+  private static final String LEGACY_VOICEMAIL_COUNT = "legacy_voicemail_count";
+
+  @Override
+  public void onReceive(Context context, Intent intent) {
+    LogUtil.i(
+        "LegacyVoicemailNotificationReceiver.onReceive", "received legacy voicemail notification");
+    Assert.checkArgument(BuildCompat.isAtLeastO());
+
+    PhoneAccountHandle phoneAccountHandle =
+        Assert.isNotNull(intent.getParcelableExtra(TelephonyManager.EXTRA_PHONE_ACCOUNT_HANDLE));
+
+    int count = intent.getIntExtra(TelephonyManager.EXTRA_NOTIFICATION_COUNT, -1);
+
+    if (!hasVoicemailCountChanged(context, phoneAccountHandle, count)) {
+      LogUtil.i(
+          "LegacyVoicemailNotificationReceiver.onReceive",
+          "voicemail count hasn't changed, ignoring");
+      return;
+    }
+
+    if (count == -1) {
+      // Carrier might not send voicemail count. Missing extra means there are unknown numbers of
+      // voicemails (One or more). Treat it as 1 so the generic version will be shown. ("Voicemail"
+      // instead of "X voicemails")
+      count = 1;
+    }
+
+    if (count == 0) {
+      LogUtil.i("LegacyVoicemailNotificationReceiver.onReceive", "clearing notification");
+      new DefaultVoicemailNotifier(context).cancelLegacyNotification();
+      return;
+    }
+
+    if (UserManagerCompat.isUserUnlocked(context)
+        && VoicemailComponent.get(context)
+            .getVoicemailClient()
+            .isActivated(context, phoneAccountHandle)) {
+      LogUtil.i(
+          "LegacyVoicemailNotificationReceiver.onReceive",
+          "visual voicemail is activated, ignoring notification");
+      return;
+    }
+
+    String voicemailNumber = intent.getStringExtra(TelephonyManager.EXTRA_VOICEMAIL_NUMBER);
+    PendingIntent callVoicemailIntent =
+        intent.getParcelableExtra(TelephonyManager.EXTRA_CALL_VOICEMAIL_INTENT);
+    PendingIntent voicemailSettingIntent =
+        intent.getParcelableExtra(TelephonyManager.EXTRA_LAUNCH_VOICEMAIL_SETTINGS_INTENT);
+
+    LogUtil.i("LegacyVoicemailNotificationReceiver.onReceive", "sending notification");
+    new DefaultVoicemailNotifier(context)
+        .notifyLegacyVoicemail(
+            phoneAccountHandle,
+            count,
+            voicemailNumber,
+            callVoicemailIntent,
+            voicemailSettingIntent);
+  }
+
+  private static boolean hasVoicemailCountChanged(
+      Context context, PhoneAccountHandle phoneAccountHandle, int newCount) {
+    // Need credential encrypted storage to access preferences.
+    if (!UserManagerCompat.isUserUnlocked(context)) {
+      LogUtil.i(
+          "LegacyVoicemailNotificationReceiver.onReceive",
+          "User locked, bypassing voicemail count check");
+      return true;
+    }
+
+    if (newCount == -1) {
+      // Carrier does not report voicemail count
+      return true;
+    }
+
+    PerAccountSharedPreferences preferences =
+        new PerAccountSharedPreferences(
+            context, phoneAccountHandle, PreferenceManager.getDefaultSharedPreferences(context));
+    // Carriers may send multiple notifications for the same voicemail.
+    if (newCount != 0 && newCount == preferences.getInt(LEGACY_VOICEMAIL_COUNT, -1)) {
+      return false;
+    }
+    preferences.edit().putInt(LEGACY_VOICEMAIL_COUNT, newCount).apply();
+    return true;
+  }
+}