Add default Dialer preference to Settings

Add a Default phone app setting under wireless settings, and also
a dialog activity that allows a user to confirm the selection of an
application as a default phone app.

Bug: 6948882
Bug: 15021725
Change-Id: I2c1473feba20da01b14fbd30dbecc01be560479d

AndroidManifest.xml

@@ -1624,6 +1624,16 @@
             </intent-filter>
         </activity>
 
+        <activity android:name=".PhoneDefaultDialog"
+                  android:label="@string/phone_application_title"
+                  android:excludeFromRecents="true"
+                  android:theme="@*android:style/Theme.Material.Light.Dialog.Alert">
+            <intent-filter>
+                <action android:name="android.telecomm.ACTION_CHANGE_DEFAULT_PHONE" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
+
         <activity android:name=".ActiveNetworkScorerDialog"
                   android:label="@string/network_scorer_application"
                   android:excludeFromRecents="true"

res/values/strings.xml

@@ -2378,6 +2378,11 @@
     <string name="sms_change_default_dialog_text" translatable="true">Use <xliff:g id="new_app">%1$s</xliff:g> instead of <xliff:g id="current_app">%2$s</xliff:g> as your SMS app?</string>
     <string name="sms_change_default_no_previous_dialog_text" translatable="true">Use <xliff:g id="new_app">%s</xliff:g> as your SMS app?</string>
 
+    <!-- Default phone application [CHAR LIMIT=35] -->
+    <string name="phone_application_title" translatable="true">Default phone app</string>
+    <!-- Title of dialog used to change the default phone application [CHAR LIMIT=35]-->
+    <string name="phone_change_default_dialog_title" translatable="true">Change default phone app?</string>
+
     <!-- Network Scorer Application -->
     <!-- TODO: Final UX and strings, then mark these as translatable. -->
     <string name="network_scorer_application" translatable="false">Active network scorer</string>

res/xml/wireless_settings.xml

@@ -29,6 +29,12 @@
         android:summary="%s"
         android:persistent="false" />
 
+    <com.android.settings.AppListPreference
+        android:key="phone_application"
+        android:title="@string/phone_application_title"
+        android:summary="%s"
+        android:persistent="false" />
+
     <CheckBoxPreference
         android:key="toggle_nfc"
         android:title="@string/nfc_quick_toggle_title"

src/com/android/settings/PhoneDefaultDialog.java

@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2014 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.settings;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.os.Bundle;
+import android.provider.Telephony.Sms.Intents;
+import android.telecomm.PhoneApplication;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.android.internal.app.AlertActivity;
+import com.android.internal.app.AlertController;
+import com.android.settings.R;
+
+/**
+ * Displays the dialog that provides a list of installed phone applications to allow the user to
+ * select a default phone application.
+ */
+public final class PhoneDefaultDialog extends AlertActivity implements
+        DialogInterface.OnClickListener {
+    private static final String TAG = "PhoneDefaultDialog";
+    private ComponentName mNewComponent;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        final String packageName = getIntent().getStringExtra(Intents.EXTRA_PACKAGE_NAME);
+
+        setResult(RESULT_CANCELED);
+        if (!buildDialog(packageName)) {
+            finish();
+        }
+    }
+
+    @Override
+    public void onClick(DialogInterface dialog, int which) {
+        switch (which) {
+            case BUTTON_POSITIVE:
+                PhoneApplication.setDefaultPhoneApplication(mNewComponent.getPackageName(),
+                        this);
+                setResult(RESULT_OK);
+                break;
+            case BUTTON_NEGATIVE:
+                break;
+        }
+    }
+
+    private boolean buildDialog(String packageName) {
+        final TelephonyManager tm = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
+        if (!tm.isVoiceCapable()) {
+            Log.w(TAG, "Dialog launched but device is not voice capable.");
+            return false;
+        }
+
+        mNewComponent = PhoneApplication.getPhoneApplicationForPackageName(this,
+                packageName);
+        if (mNewComponent == null) {
+            Log.w(TAG,
+                    "Provided package name does not correspond to an installed Phone application.");
+            return false;
+        }
+
+        final ComponentName oldComponent = PhoneApplication.getDefaultPhoneApplication(this);
+        if (oldComponent != null &&
+                TextUtils.equals(oldComponent.getPackageName(), mNewComponent.getPackageName())) {
+            return false;
+        }
+
+        final PackageManager pm = getPackageManager();
+        final String newComponentLabel =
+                getApplicationLabelForPackageName(pm, mNewComponent.getPackageName());
+        final AlertController.AlertParams p = mAlertParams;
+        p.mTitle = getString(R.string.phone_change_default_dialog_title);
+        if (oldComponent != null) {
+            String oldComponentLabel =
+                    getApplicationLabelForPackageName(pm, oldComponent.getPackageName());
+            p.mMessage = getString(R.string.sms_change_default_dialog_text,
+                    newComponentLabel,
+                    oldComponentLabel);
+        } else {
+            p.mMessage = getString(R.string.sms_change_default_no_previous_dialog_text,
+                    newComponentLabel);
+        }
+        p.mPositiveButtonText = getString(R.string.yes);
+        p.mNegativeButtonText = getString(R.string.no);
+        p.mPositiveButtonListener = this;
+        p.mNegativeButtonListener = this;
+        setupAlert();
+
+        return true;
+    }
+
+    /**
+     * Returns the application label that corresponds to the given package name
+     *
+     * @param pm An instance of a {@link PackageManager}.
+     * @param packageName A valid package name.
+     *
+     * @return Application label for the given package name, or null if not found.
+     */
+    private String getApplicationLabelForPackageName(PackageManager pm, String packageName) {
+        ApplicationInfo info = null;
+        try {
+            info = pm.getApplicationInfo(packageName, 0);
+        } catch (NameNotFoundException e) {
+            Log.w(TAG, "Application info not found for packageName " + packageName);
+        }
+        if (info == null) {
+            return packageName;
+        } else {
+            return info.loadLabel(pm).toString();
+        }
+    }
+}

src/com/android/settings/WirelessSettings.java

@@ -41,6 +41,7 @@ import android.preference.Preference.OnPreferenceChangeListener;
 import android.preference.PreferenceScreen;
 import android.provider.SearchIndexableResource;
 import android.provider.Settings;
+import android.telecomm.PhoneApplication;
 import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 import android.util.Log;
@@ -74,6 +75,7 @@ public class WirelessSettings extends RestrictedSettingsFragment
     private static final String KEY_SMS_APPLICATION = "sms_application";
     private static final String KEY_TOGGLE_NSD = "toggle_nsd"; //network service discovery
     private static final String KEY_CELL_BROADCAST_SETTINGS = "cell_broadcast_settings";
+    private static final String KEY_PHONE_APPLICATION = "phone_application";
 
     public static final String EXIT_ECM_RESULT = "exit_ecm_result";
     public static final int REQUEST_CODE_EXIT_ECM = 1;
@@ -93,6 +95,7 @@ public class WirelessSettings extends RestrictedSettingsFragment
     private static final String SAVED_MANAGE_MOBILE_PLAN_MSG = "mManageMobilePlanMessage";
 
     private AppListPreference mSmsApplicationPreference;
+    private AppListPreference mDialerApplicationPreference;
 
     public WirelessSettings() {
         super(null);
@@ -202,6 +205,24 @@ public class WirelessSettings extends RestrictedSettingsFragment
         mSmsApplicationPreference.setPackageNames(packageNames, defaultPackageName);
     }
 
+    private void initDialerApplicationSetting() {
+        log("initDialerApplicationSetting:");
+        final List<ComponentName> dialers =
+                PhoneApplication.getInstalledPhoneApplications(getActivity());
+
+        final int count = dialers.size();
+        final String[] packageNames = new String[count];
+        for (int i = 0; i < count; i++) {
+            packageNames[i] = dialers.get(i).getPackageName();
+        }
+        String defaultPackageName = null;
+        final ComponentName appName = PhoneApplication.getDefaultPhoneApplication(getActivity());
+        if (appName != null) {
+            defaultPackageName = appName.getPackageName();
+        }
+        mDialerApplicationPreference.setPackageNames(packageNames, defaultPackageName);
+    }
+
     @Override
     public Dialog onCreateDialog(int dialogId) {
         log("onCreateDialog: dialogId=" + dialogId);
@@ -242,6 +263,10 @@ public class WirelessSettings extends RestrictedSettingsFragment
         return mTm.isSmsCapable();
     }
 
+    private boolean isVoiceCapable() {
+        return mTm.isVoiceCapable();
+    }
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -272,6 +297,10 @@ public class WirelessSettings extends RestrictedSettingsFragment
         mSmsApplicationPreference.setOnPreferenceChangeListener(this);
         initSmsApplicationSetting();
 
+        mDialerApplicationPreference = (AppListPreference) findPreference(KEY_PHONE_APPLICATION);
+        mDialerApplicationPreference.setOnPreferenceChangeListener(this);
+        initDialerApplicationSetting();
+
         // Remove NSD checkbox by default
         getPreferenceScreen().removePreference(nsd);
         //mNsdEnabler = new NsdEnabler(activity, nsd);
@@ -346,6 +375,11 @@ public class WirelessSettings extends RestrictedSettingsFragment
             removePreference(KEY_SMS_APPLICATION);
         }
 
+        // Remove Dialer setting if the device does not support voice
+        if (!isVoiceCapable()) {
+            removePreference(KEY_PHONE_APPLICATION);
+        }
+
         // Remove Airplane Mode settings if it's a stationary device such as a TV.
         if (mPm.hasSystemFeature(PackageManager.FEATURE_TELEVISION)) {
             removePreference(KEY_TOGGLE_AIRPLANE);
@@ -454,6 +488,9 @@ public class WirelessSettings extends RestrictedSettingsFragment
         if (preference == mSmsApplicationPreference && newValue != null) {
             SmsApplication.setDefaultApplication(newValue.toString(), getActivity());
             return true;
+        } else if (preference == mDialerApplicationPreference && newValue != null) {
+            PhoneApplication.setDefaultPhoneApplication(newValue.toString(), getActivity());
+            return true;
         }
         return false;
     }
@@ -513,12 +550,17 @@ public class WirelessSettings extends RestrictedSettingsFragment
                 }
 
                 // Remove SMS Application if the device does not support SMS
-                TelephonyManager tm =
+                final TelephonyManager tm =
                         (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
                 if (!tm.isSmsCapable()) {
                     result.add(KEY_SMS_APPLICATION);
                 }
 
+                // Remove Phone Application if the device is not voice capable
+                if (!tm.isVoiceCapable()) {
+                    result.add(KEY_PHONE_APPLICATION);
+                }
+
                 final PackageManager pm = context.getPackageManager();
 
                 // Remove Airplane Mode settings if it's a stationary device such as a TV.
@@ -530,8 +572,8 @@ public class WirelessSettings extends RestrictedSettingsFragment
                 result.add(KEY_PROXY_SETTINGS);
 
                 // Disable Tethering if it's not allowed or if it's a wifi-only device
-                ConnectivityManager cm =
+                final ConnectivityManager cm = (ConnectivityManager) context.getSystemService(
-                        (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
+                        Context.CONNECTIVITY_SERVICE);
                 if (isSecondaryUser || !cm.isTetheringSupported()) {
                     result.add(KEY_TETHER_SETTINGS);
                 }