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      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.settings;
     18 
     19 import android.app.AlertDialog;
     20 import android.content.Context;
     21 import android.content.res.Configuration;
     22 import android.os.Build;
     23 import android.os.Bundle;
     24 import android.os.SystemProperties;
     25 import android.telephony.TelephonyManager;
     26 import android.text.TextUtils;
     27 import android.view.KeyEvent;
     28 import android.webkit.WebView;
     29 import android.webkit.WebViewClient;
     30 import com.android.internal.app.AlertActivity;
     31 import com.android.internal.app.AlertController;
     32 import android.content.DialogInterface;
     33 
     34 /**
     35  * The "dialog" that shows from "Safety information" in the Settings app.
     36  */
     37 public class SettingsSafetyLegalActivity extends AlertActivity
     38         implements DialogInterface.OnCancelListener, DialogInterface.OnClickListener {
     39     private static final String PROPERTY_LSAFETYLEGAL_URL = "ro.url.safetylegal";
     40 
     41     private WebView mWebView;
     42 
     43     private AlertDialog mErrorDialog = null;
     44 
     45     @Override
     46     protected void onCreate(Bundle savedInstanceState) {
     47         super.onCreate(savedInstanceState);
     48 
     49         String userSafetylegalUrl = SystemProperties.get(PROPERTY_LSAFETYLEGAL_URL);
     50 
     51         final Configuration configuration = getResources().getConfiguration();
     52         final String language = configuration.locale.getLanguage();
     53         final String country = configuration.locale.getCountry();
     54 
     55         String loc = String.format("locale=%s-%s", language, country);
     56 
     57         userSafetylegalUrl = String.format("%s&%s", userSafetylegalUrl, loc);
     58 
     59         mWebView = new WebView(this);
     60 
     61         // Begin accessing
     62         mWebView.getSettings().setJavaScriptEnabled(true);
     63         if (savedInstanceState == null) {
     64             mWebView.loadUrl(userSafetylegalUrl);
     65         } else {
     66             mWebView.restoreState(savedInstanceState);
     67         }
     68         mWebView.setWebViewClient(new WebViewClient() {
     69             @Override
     70             public void onPageFinished(WebView view, String url) {
     71                 // Change from 'Loading...' to the real title
     72                 mAlert.setTitle(getString(R.string.settings_safetylegal_activity_title));
     73             }
     74 
     75             @Override
     76             public void onReceivedError(WebView view, int errorCode,
     77                     String description, String failingUrl) {
     78                 showErrorAndFinish(failingUrl);
     79             }
     80         });
     81 
     82         final AlertController.AlertParams p = mAlertParams;
     83         p.mTitle = getString(R.string.settings_safetylegal_activity_loading);
     84         p.mView = mWebView;
     85         p.mForceInverseBackground = true;
     86         setupAlert();
     87     }
     88 
     89     private void showErrorAndFinish(String url) {
     90         if (mErrorDialog == null) {
     91             mErrorDialog = new AlertDialog.Builder(this)
     92                     .setTitle(R.string.settings_safetylegal_activity_title)
     93                     .setPositiveButton(android.R.string.ok, this)
     94                     .setOnCancelListener(this)
     95                     .setCancelable(true)
     96                     .create();
     97         } else {
     98             if (mErrorDialog.isShowing()) {
     99                 mErrorDialog.dismiss();
    100             }
    101         }
    102         mErrorDialog.setMessage(getResources()
    103                 .getString(R.string.settings_safetylegal_activity_unreachable, url));
    104         mErrorDialog.show();
    105     }
    106 
    107     @Override
    108     protected void onDestroy() {
    109         super.onDestroy();
    110 
    111         if (mErrorDialog != null) {
    112             mErrorDialog.dismiss();
    113             mErrorDialog = null;
    114         }
    115     }
    116 
    117     @Override
    118     public boolean dispatchKeyEvent(KeyEvent event) {
    119         if (event.getKeyCode() == KeyEvent.KEYCODE_BACK
    120                 && event.getAction() == KeyEvent.ACTION_DOWN) {
    121             if (mWebView.canGoBack()) {
    122                 mWebView.goBack();
    123                 return true;
    124             }
    125         }
    126         return super.dispatchKeyEvent(event);
    127     }
    128 
    129     public void onClick(DialogInterface dialog, int whichButton) {
    130         finish();
    131     }
    132 
    133     public void onCancel(DialogInterface dialog) {
    134         finish();
    135     }
    136 
    137     @Override
    138     public void onSaveInstanceState(Bundle icicle) {
    139         mWebView.saveState(icicle);
    140         super.onSaveInstanceState(icicle);
    141     }
    142 }
    143