Initial checkin of AOSP Messaging app.

b/23110861

Change-Id: I11db999bd10656801e618f78ab2b2ef74136fff1

src/com/android/messaging/ui/appsettings/PhoneNumberPreference.java

@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2015 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.messaging.ui.appsettings;
+
+import android.content.Context;
+import android.preference.EditTextPreference;
+import android.support.v4.text.BidiFormatter;
+import android.support.v4.text.TextDirectionHeuristicsCompat;
+import android.text.InputType;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.view.View;
+
+import com.android.messaging.R;
+import com.android.messaging.util.PhoneUtils;
+
+/**
+ * Preference that displays a phone number and allows editing via a dialog.
+ * <p>
+ * A default number can be assigned, which is shown in the preference view and
+ * used to populate the dialog editor when the preference value is not set. If
+ * the user sets the preference to a number equivalent to the default, the
+ * underlying preference is cleared.
+ */
+public class PhoneNumberPreference extends EditTextPreference {
+
+    private String mDefaultPhoneNumber;
+    private int mSubId;
+
+    public PhoneNumberPreference(final Context context, final AttributeSet attrs) {
+        super(context, attrs);
+        mDefaultPhoneNumber = "";
+    }
+
+    public void setDefaultPhoneNumber(final String phoneNumber, final int subscriptionId) {
+        mDefaultPhoneNumber = phoneNumber;
+        mSubId = subscriptionId;
+    }
+
+    @Override
+    protected void onBindView(final View view) {
+        // Show the preference value if it's set, or the default number if not.
+        // If we don't have a default, fall back to a static string (e.g. Unknown).
+        String value = getText();
+        if (TextUtils.isEmpty(value)) {
+          value = mDefaultPhoneNumber;
+        }
+        final String displayValue = (!TextUtils.isEmpty(value))
+                ? PhoneUtils.get(mSubId).formatForDisplay(value)
+                : getContext().getString(R.string.unknown_phone_number_pref_display_value);
+        final BidiFormatter bidiFormatter = BidiFormatter.getInstance();
+        final String phoneNumber = bidiFormatter.unicodeWrap
+                        (displayValue, TextDirectionHeuristicsCompat.LTR);
+        // Set the value as the summary and let the superclass populate the views
+        setSummary(phoneNumber);
+        super.onBindView(view);
+    }
+
+    @Override
+    protected void onBindDialogView(final View view) {
+        super.onBindDialogView(view);
+
+        final String value = getText();
+
+        // If the preference is empty, populate the EditText with the default number instead.
+        if (TextUtils.isEmpty(value) && !TextUtils.isEmpty(mDefaultPhoneNumber)) {
+            final BidiFormatter bidiFormatter = BidiFormatter.getInstance();
+            final String phoneNumber = bidiFormatter.unicodeWrap
+                (PhoneUtils.get(mSubId).getCanonicalBySystemLocale(mDefaultPhoneNumber),
+                            TextDirectionHeuristicsCompat.LTR);
+            getEditText().setText(phoneNumber);
+        }
+        getEditText().setInputType(InputType.TYPE_CLASS_PHONE);
+    }
+
+    @Override
+    protected void onDialogClosed(final boolean positiveResult) {
+        if (positiveResult && mDefaultPhoneNumber != null) {
+            final String value = getEditText().getText().toString();
+            final PhoneUtils phoneUtils = PhoneUtils.get(mSubId);
+            final String phoneNumber = phoneUtils.getCanonicalBySystemLocale(value);
+            final String defaultPhoneNumber = phoneUtils.getCanonicalBySystemLocale(
+                    mDefaultPhoneNumber);
+
+            // If the new value is the default, clear the preference.
+            if (phoneNumber.equals(defaultPhoneNumber)) {
+                setText("");
+                return;
+            }
+        }
+        super.onDialogClosed(positiveResult);
+    }
+
+    @Override
+    public void setText(final String text) {
+        super.setText(text);
+
+        // EditTextPreference doesn't show the value on the preference view, but we do.
+        // We thus need to force a rebind of the view when a new value is set.
+        notifyChanged();
+    }
+}