1 files changed, 130 insertions, 2 deletions
diff --git a/java/com/android/contacts/common/compat/PhoneNumberUtilsCompat.java b/java/com/android/contacts/common/compat/PhoneNumberUtilsCompat.java
index a6cfe07cd..960b340d8 100644
--- a/java/com/android/contacts/common/compat/PhoneNumberUtilsCompat.java
+++ b/java/com/android/contacts/common/compat/PhoneNumberUtilsCompat.java
@@ -17,7 +17,13 @@
 package com.android.contacts.common.compat;
 
 import android.telephony.PhoneNumberUtils;
+import android.text.Spannable;
+import android.text.TextUtils;
 import android.text.style.TtsSpan;
+import com.android.dialer.compat.CompatUtils;
+import com.google.i18n.phonenumbers.NumberParseException;
+import com.google.i18n.phonenumbers.PhoneNumberUtil;
+import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber;
 
 /**
  * This class contains static utility methods extracted from PhoneNumberUtils, and the methods were
@@ -31,16 +37,138 @@ public class PhoneNumberUtilsCompat {
   /** Not instantiable. */
   private PhoneNumberUtilsCompat() {}
 
+  public static String normalizeNumber(String phoneNumber) {
+    if (CompatUtils.isLollipopCompatible()) {
+      return PhoneNumberUtils.normalizeNumber(phoneNumber);
+    } else {
+      return normalizeNumberInternal(phoneNumber);
+    }
+  }
+
+  /** Implementation copied from {@link PhoneNumberUtils#normalizeNumber} */
+  private static String normalizeNumberInternal(String phoneNumber) {
+    if (TextUtils.isEmpty(phoneNumber)) {
+      return "";
+    }
+    StringBuilder sb = new StringBuilder();
+    int len = phoneNumber.length();
+    for (int i = 0; i < len; i++) {
+      char c = phoneNumber.charAt(i);
+      // Character.digit() supports ASCII and Unicode digits (fullwidth, Arabic-Indic, etc.)
+      int digit = Character.digit(c, 10);
+      if (digit != -1) {
+        sb.append(digit);
+      } else if (sb.length() == 0 && c == '+') {
+        sb.append(c);
+      } else if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
+        return normalizeNumber(PhoneNumberUtils.convertKeypadLettersToDigits(phoneNumber));
+      }
+    }
+    return sb.toString();
+  }
+
   public static String formatNumber(
       String phoneNumber, String phoneNumberE164, String defaultCountryIso) {
+    if (CompatUtils.isLollipopCompatible()) {
       return PhoneNumberUtils.formatNumber(phoneNumber, phoneNumberE164, defaultCountryIso);
+    } else {
+      // This method was deprecated in API level 21, so it's only used on pre-L SDKs.
+      return PhoneNumberUtils.formatNumber(phoneNumber);
+    }
   }
 
   public static CharSequence createTtsSpannable(CharSequence phoneNumber) {
-    return PhoneNumberUtils.createTtsSpannable(phoneNumber);
+    if (CompatUtils.isMarshmallowCompatible()) {
+      return PhoneNumberUtils.createTtsSpannable(phoneNumber);
+    } else {
+      return createTtsSpannableInternal(phoneNumber);
+    }
   }
 
   public static TtsSpan createTtsSpan(String phoneNumber) {
-    return PhoneNumberUtils.createTtsSpan(phoneNumber);
+    if (CompatUtils.isMarshmallowCompatible()) {
+      return PhoneNumberUtils.createTtsSpan(phoneNumber);
+    } else if (CompatUtils.isLollipopCompatible()) {
+      return createTtsSpanLollipop(phoneNumber);
+    } else {
+      return null;
+    }
+  }
+
+  /** Copied from {@link PhoneNumberUtils#createTtsSpannable} */
+  private static CharSequence createTtsSpannableInternal(CharSequence phoneNumber) {
+    if (phoneNumber == null) {
+      return null;
+    }
+    Spannable spannable = Spannable.Factory.getInstance().newSpannable(phoneNumber);
+    addTtsSpanInternal(spannable, 0, spannable.length());
+    return spannable;
+  }
+
+  /** Compat method for addTtsSpan, see {@link PhoneNumberUtils#addTtsSpan} */
+  public static void addTtsSpan(Spannable s, int start, int endExclusive) {
+    if (CompatUtils.isMarshmallowCompatible()) {
+      PhoneNumberUtils.addTtsSpan(s, start, endExclusive);
+    } else {
+      addTtsSpanInternal(s, start, endExclusive);
+    }
+  }
+
+  /** Copied from {@link PhoneNumberUtils#addTtsSpan} */
+  private static void addTtsSpanInternal(Spannable s, int start, int endExclusive) {
+    s.setSpan(
+        createTtsSpan(s.subSequence(start, endExclusive).toString()),
+        start,
+        endExclusive,
+        Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+  }
+
+  /** Copied from {@link PhoneNumberUtils#createTtsSpan} */
+  private static TtsSpan createTtsSpanLollipop(String phoneNumberString) {
+    if (phoneNumberString == null) {
+      return null;
+    }
+
+    // Parse the phone number
+    final PhoneNumberUtil phoneNumberUtil = PhoneNumberUtil.getInstance();
+    PhoneNumber phoneNumber = null;
+    try {
+      // Don't supply a defaultRegion so this fails for non-international numbers because
+      // we don't want to TalkBalk to read a country code (e.g. +1) if it is not already
+      // present
+      phoneNumber = phoneNumberUtil.parse(phoneNumberString, /* defaultRegion */ null);
+    } catch (NumberParseException ignored) {
+    }
+
+    // Build a telephone tts span
+    final TtsSpan.TelephoneBuilder builder = new TtsSpan.TelephoneBuilder();
+    if (phoneNumber == null) {
+      // Strip separators otherwise TalkBack will be silent
+      // (this behavior was observed with TalkBalk 4.0.2 from their alpha channel)
+      builder.setNumberParts(splitAtNonNumerics(phoneNumberString));
+    } else {
+      if (phoneNumber.hasCountryCode()) {
+        builder.setCountryCode(Integer.toString(phoneNumber.getCountryCode()));
+      }
+      builder.setNumberParts(Long.toString(phoneNumber.getNationalNumber()));
+    }
+    return builder.build();
+  }
+
+  /**
+   * Split a phone number using spaces, ignoring anything that is not a digit
+   *
+   * @param number A {@code CharSequence} before splitting, e.g., "+20(123)-456#"
+   * @return A {@code String} after splitting, e.g., "20 123 456".
+   */
+  private static String splitAtNonNumerics(CharSequence number) {
+    StringBuilder sb = new StringBuilder(number.length());
+    for (int i = 0; i < number.length(); i++) {
+      sb.append(PhoneNumberUtils.isISODigit(number.charAt(i)) ? number.charAt(i) : " ");
+    }
+    // It is very important to remove extra spaces. At time of writing, any leading or trailing
+    // spaces, or any sequence of more than one space, will confuse TalkBack and cause the TTS
+    // span to be non-functional!
+    return sb.toString().replaceAll(" +", " ").trim();
   }
 }