Update dialer sources.

Test: Built package and system image.

This change clobbers the old source, and is an export
from an internal Google repository.

The internal repository was forked form Android in March,
and this change includes modifications since then, to
near the v8 release.

Since the fork, we've moved code from monolithic to independent modules. In addition,
we've switched to Blaze/Bazel as the build sysetm. This export, however, still uses make.

New dependencies have been added:
- Dagger
- Auto-Value
- Glide
- Libshortcutbadger

Going forward, development will still be in Google3, and the Gerrit release
will become an automated export, with the next drop happening in ~ two weeks.

Android.mk includes local modifications from ToT.

Abridged changelog:

Bug fixes
● Not able to mute, add a call when using Phone app in multiwindow mode
● Double tap on keypad triggering multiple key and tones
● Reported spam numbers not showing as spam in the call log
● Crash when user tries to block number while Phone app is not set as default
● Crash when user picks a number from search auto-complete list

Visual Voicemail (VVM) improvements
● Share Voicemail audio via standard exporting mechanisms that support file attachment
(email, MMS, etc.)
● Make phone number, email and web sites in VVM transcript clickable
● Set PIN before declining VVM Terms of Service {Carrier}
● Set client type for outbound visual voicemail SMS {Carrier}

New incoming call and incall UI on older devices
(Android M)
● Updated Phone app icon
● New incall UI (large buttons, button labels)
● New and animated Answer/Reject gestures

Accessibility
● Add custom answer/decline call buttons on answer screen for touch exploration
accessibility services
● Increase size of touch target
● Add verbal feedback when a Voicemail fails to load
● Fix pressing of Phone buttons while in a phone call using Switch Access
● Fix selecting and opening contacts in talkback mode
● Split focus for ‘Learn More’ link in caller id & spam to help distinguish similar text

Other
● Backup & Restore for App Preferences
● Prompt user to enable Wi-Fi calling if the call ends due to out of service and Wi-Fi is
connected
● Rename “Dialpad” to “Keypad”
● Show "Private number" for restricted calls
● Delete unused items (vcard, add contact, call history) from Phone menu

Change-Id: I2a7e53532a24c21bf308bf0a6d178d7ddbca4958

1 files changed, 133 insertions, 0 deletions

diff --git a/java/com/android/incallui/answer/impl/hint/AnswerHintFactory.java b/java/com/android/incallui/answer/impl/hint/AnswerHintFactory.java
new file mode 100644
index 000000000..45395a71f
--- /dev/null
+++ b/java/com/android/incallui/answer/impl/hint/AnswerHintFactory.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2016 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.incallui.answer.impl.hint;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+import android.preference.PreferenceManager;
+import android.support.annotation.NonNull;
+import android.support.annotation.VisibleForTesting;
+import com.android.dialer.common.Assert;
+import com.android.dialer.common.ConfigProvider;
+import com.android.dialer.common.ConfigProviderBindings;
+import com.android.dialer.common.LogUtil;
+import com.android.incallui.util.AccessibilityUtil;
+import java.util.Calendar;
+
+/**
+ * Selects a AnswerHint to show. If there's no suitable hints {@link EmptyAnswerHint} will be used,
+ * which does nothing.
+ */
+public class AnswerHintFactory {
+
+  private static final String CONFIG_ANSWER_HINT_ANSWERED_THRESHOLD_KEY =
+      "answer_hint_answered_threshold";
+  @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
+  static final String CONFIG_ANSWER_HINT_WHITELISTED_DEVICES_KEY =
+      "answer_hint_whitelisted_devices";
+  // Most popular devices released before NDR1 is whitelisted. Their user are likely to have seen
+  // the legacy UI.
+  private static final String DEFAULT_WHITELISTED_DEVICES_CSV =
+      "/hammerhead//bullhead//angler//shamu//gm4g//gm4g_s//AQ4501//gce_x86_phone//gm4gtkc_s/"
+          + "/Sparkle_V//Mi-498//AQ4502//imobileiq2//A65//H940//m8_google//m0xx//A10//ctih220/"
+          + "/Mi438S//bacon/";
+
+  @VisibleForTesting
+  static final String ANSWERED_COUNT_PREFERENCE_KEY = "answer_hint_answered_count";
+
+  private final EventPayloadLoader eventPayloadLoader;
+
+  public AnswerHintFactory(@NonNull EventPayloadLoader eventPayloadLoader) {
+    this.eventPayloadLoader = Assert.isNotNull(eventPayloadLoader);
+  }
+
+  @NonNull
+  public AnswerHint create(Context context, long puckUpDuration, long puckUpDelay) {
+
+    if (shouldShowAnswerHint(
+        context,
+        ConfigProviderBindings.get(context),
+        getDeviceProtectedPreferences(context),
+        Build.PRODUCT)) {
+      return new DotAnswerHint(context, puckUpDuration, puckUpDelay);
+    }
+
+    // Display the event answer hint if the payload is available.
+    Drawable eventPayload =
+        eventPayloadLoader.loadPayload(
+            context, System.currentTimeMillis(), Calendar.getInstance().getTimeZone());
+    if (eventPayload != null) {
+      return new EventAnswerHint(context, eventPayload, puckUpDuration, puckUpDelay);
+    }
+
+    return new EmptyAnswerHint();
+  }
+
+  public static void increaseAnsweredCount(Context context) {
+    SharedPreferences sharedPreferences = getDeviceProtectedPreferences(context);
+    int answeredCount = sharedPreferences.getInt(ANSWERED_COUNT_PREFERENCE_KEY, 0);
+    sharedPreferences.edit().putInt(ANSWERED_COUNT_PREFERENCE_KEY, answeredCount + 1).apply();
+  }
+
+  @VisibleForTesting
+  static boolean shouldShowAnswerHint(
+      Context context,
+      ConfigProvider configProvider,
+      SharedPreferences sharedPreferences,
+      String device) {
+    if (AccessibilityUtil.isTouchExplorationEnabled(context)) {
+      return false;
+    }
+    // Devices that has the legacy dialer installed are whitelisted as they are likely to go through
+    // a UX change during updates.
+    if (!isDeviceWhitelisted(device, configProvider)) {
+      return false;
+    }
+
+    // If the user has gone through the process a few times we can assume they have learnt the
+    // method.
+    int answeredCount = sharedPreferences.getInt(ANSWERED_COUNT_PREFERENCE_KEY, 0);
+    long threshold = configProvider.getLong(CONFIG_ANSWER_HINT_ANSWERED_THRESHOLD_KEY, 3);
+    LogUtil.i(
+        "AnswerHintFactory.shouldShowAnswerHint",
+        "answerCount: %d, threshold: %d",
+        answeredCount,
+        threshold);
+    return answeredCount < threshold;
+  }
+
+  /**
+   * @param device should be the value of{@link Build#PRODUCT}.
+   * @param configProvider should provide a list of devices quoted with '/' concatenated to a
+   *     string.
+   */
+  private static boolean isDeviceWhitelisted(String device, ConfigProvider configProvider) {
+    return configProvider
+        .getString(CONFIG_ANSWER_HINT_WHITELISTED_DEVICES_KEY, DEFAULT_WHITELISTED_DEVICES_CSV)
+        .contains("/" + device + "/");
+  }
+
+  private static SharedPreferences getDeviceProtectedPreferences(Context context) {
+    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
+      return PreferenceManager.getDefaultSharedPreferences(context);
+    }
+    return PreferenceManager.getDefaultSharedPreferences(
+        context.createDeviceProtectedStorageContext());
+  }
+}