1 files changed, 58 insertions, 3 deletions
diff --git a/org.fox.ttcomics/src/main/java/org/fox/ttcomics2/PreferencesFragment.java b/org.fox.ttcomics/src/main/java/org/fox/ttcomics2/PreferencesFragment.java
index e16871f..e8697a7 100644
--- a/org.fox.ttcomics/src/main/java/org/fox/ttcomics2/PreferencesFragment.java
+++ b/org.fox.ttcomics/src/main/java/org/fox/ttcomics2/PreferencesFragment.java
@@ -2,6 +2,7 @@ package org.fox.ttcomics2;
 
 import android.app.Activity;
 import android.app.AlertDialog;
+import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
@@ -12,9 +13,15 @@ import android.os.Bundle;
 import android.preference.Preference;
 import android.preference.PreferenceFragment;
 import android.preference.PreferenceManager;
+import android.text.InputType;
+import android.text.TextUtils;
+import android.util.Patterns;
+import android.widget.EditText;
 
 import com.google.android.gms.auth.GoogleAuthUtil;
 import com.google.android.gms.common.AccountPicker;
+import com.google.android.gms.common.ConnectionResult;
+import com.google.android.gms.common.GoogleApiAvailability;
 
 import org.fox.ttcomics2.sync.SyncClient;
 
@@ -22,6 +29,7 @@ import java.text.SimpleDateFormat;
 import java.util.Date;
 
 public class PreferencesFragment extends PreferenceFragment {
+    private final String TAG = this.getClass().getSimpleName();
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -31,6 +39,16 @@ public class PreferencesFragment extends PreferenceFragment {
 
     }
 
+    public boolean isGMSAvailable(Context context){
+        GoogleApiAvailability googleApiAvailability = GoogleApiAvailability.getInstance();
+        int resultCode = googleApiAvailability.isGooglePlayServicesAvailable(context);
+        return resultCode == ConnectionResult.SUCCESS;
+    }
+
+    public static boolean isValidEmail(CharSequence target) {
+        return (!TextUtils.isEmpty(target) && Patterns.EMAIL_ADDRESS.matcher(target).matches());
+    }
+
     public void onResume() {
         super.onResume();
 
@@ -91,10 +109,47 @@ public class PreferencesFragment extends PreferenceFragment {
         findPreference("choose_sync_account").setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
             @Override
             public boolean onPreferenceClick(Preference preference) {
-                Intent googlePicker = AccountPicker.newChooseAccountIntent(null, null,
-                        new String[]{GoogleAuthUtil.GOOGLE_ACCOUNT_TYPE}, true, null, null, null, null);
+                if (!isGMSAvailable(getActivity())) {
+                    Intent googlePicker = AccountPicker.newChooseAccountIntent(null, null,
+                            new String[]{GoogleAuthUtil.GOOGLE_ACCOUNT_TYPE}, true, null, null, null, null);
+
+                    getActivity().startActivityForResult(googlePicker, CommonActivity.REQUEST_SYNC_ACCOUNT);
+                } else {
+                    final EditText input = new EditText(getActivity());
+                    input.setText(prefs.getString("sync_account", ""));
+                    input.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS);
+
+                    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+                    builder.setMessage(getString(R.string.dialog_set_sync_account_manually))
+                            .setView(input)
+                            .setCancelable(true)
+                            .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                                public void onClick(DialogInterface dialog, int id) {
+                                    String account = input.getText().toString().trim();
+
+                                    if (isValidEmail(account)) {
+                                        dialog.dismiss();
+
+                                        SharedPreferences.Editor editor = prefs.edit();
+                                        editor.putString("sync_account", account);
+                                        editor.apply();
+
+                                        findPreference("choose_sync_account").setSummary(account);
+
+                                    } else {
+                                        ((PreferencesActivity)getActivity()).toast(R.string.dialog_invalid_sync_account_syntax);
+                                    }
+                                }
+                            })
+                            .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
+                                public void onClick(DialogInterface dialog, int id) {
+                                    dialog.cancel();
+                                }
+                            });
+                    AlertDialog alert = builder.create();
+                    alert.show();
+                }
 
-                getActivity().startActivityForResult(googlePicker, CommonActivity.REQUEST_SYNC_ACCOUNT);
 
                 return true;
             }