auto import from //depot/cupcake/@135843

1 files changed, 98 insertions, 0 deletions

diff --git a/telephony/java/android/telephony/PhoneNumberFormattingTextWatcher.java b/telephony/java/android/telephony/PhoneNumberFormattingTextWatcher.java
new file mode 100644
index 0000000..0bc6c04
--- /dev/null
+++ b/telephony/java/android/telephony/PhoneNumberFormattingTextWatcher.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2008 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 android.telephony;
+
+import android.text.Editable;
+import android.text.Selection;
+import android.text.TextWatcher;
+import android.widget.TextView;
+
+import java.util.Locale;
+
+/**
+ * Watches a {@link TextView} and if a phone number is entered will format it using
+ * {@link PhoneNumberUtils#formatNumber(Editable, int)}. The formatting is based on 
+ * the current system locale when this object is created and future locale changes
+ * may not take effect on this instance.
+ */
+public class PhoneNumberFormattingTextWatcher implements TextWatcher {
+
+    static private int sFormatType;
+    static private Locale sCachedLocale;
+    private boolean mFormatting;
+    private boolean mDeletingHyphen;
+    private int mHyphenStart;    
+    private boolean mDeletingBackward;
+
+    public PhoneNumberFormattingTextWatcher() {
+        if (sCachedLocale == null || sCachedLocale != Locale.getDefault()) {
+            sCachedLocale = Locale.getDefault();
+            sFormatType = PhoneNumberUtils.getFormatTypeForLocale(sCachedLocale);
+        }
+    }
+
+    public synchronized void afterTextChanged(Editable text) {
+        // Make sure to ignore calls to afterTextChanged caused by the work done below
+        if (!mFormatting) {
+            mFormatting = true;
+
+            // If deleting the hyphen, also delete the char before or after that
+            if (mDeletingHyphen && mHyphenStart > 0) {
+                if (mDeletingBackward) {
+                    if (mHyphenStart - 1 < text.length()) {
+                        text.delete(mHyphenStart - 1, mHyphenStart);
+                    }
+                } else if (mHyphenStart < text.length()) {
+                    text.delete(mHyphenStart, mHyphenStart + 1);
+                }
+            }
+            
+            PhoneNumberUtils.formatNumber(text, sFormatType);
+
+            mFormatting = false;
+        }
+    }
+
+    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+        // Check if the user is deleting a hyphen
+        if (!mFormatting) {
+            // Make sure user is deleting one char, without a selection
+            final int selStart = Selection.getSelectionStart(s);
+            final int selEnd = Selection.getSelectionEnd(s);
+            if (s.length() > 1 // Can delete another character 
+                    && count == 1 // Deleting only one character 
+                    && after == 0 // Deleting
+                    && s.charAt(start) == '-' // a hyphen
+                    && selStart == selEnd) { // no selection
+                mDeletingHyphen = true;
+                mHyphenStart = start;
+                // Check if the user is deleting forward or backward
+                if (selStart == start + 1) {
+                    mDeletingBackward = true;
+                } else {
+                    mDeletingBackward = false;
+                }
+            } else {
+                mDeletingHyphen = false;
+            }
+        }        
+    }
+
+    public void onTextChanged(CharSequence s, int start, int before, int count) {
+        // Does nothing
+    }
+}