1 /*
2  * Copyright (C) 2008 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.quicksearchbox.google;
18 
19 import com.android.common.Search;
20 import com.android.quicksearchbox.QsbApplication;
21 
22 import android.app.Activity;
23 import android.app.PendingIntent;
24 import android.app.SearchManager;
25 import android.content.ActivityNotFoundException;
26 import android.content.Context;
27 import android.content.Intent;
28 import android.location.Location;
29 import android.net.Uri;
30 import android.os.Bundle;
31 import android.provider.Browser;
32 import android.text.TextUtils;
33 import android.util.Log;
34 
35 import java.io.UnsupportedEncodingException;
36 import java.net.URLEncoder;
37 import java.util.Locale;
38 
39 /**
40  * This class is purely here to get search queries and route them to
41  * the global {@link Intent#ACTION_WEB_SEARCH}.
42  */
43 public class GoogleSearch extends Activity {
44     private static final String TAG = "GoogleSearch";
45     private static final boolean DBG = false;
46 
47     // Used to figure out which domain to base search requests
48     // on.
49     private SearchBaseUrlHelper mSearchDomainHelper;
50 
51     // "source" parameter for Google search requests from unknown sources (e.g. apps). This will get
52     // prefixed with the string 'android-' before being sent on the wire.
53     final static String GOOGLE_SEARCH_SOURCE_UNKNOWN = "unknown";
54 
55     @Override
onCreate(Bundle savedInstanceState)56     protected void onCreate(Bundle savedInstanceState) {
57         super.onCreate(savedInstanceState);
58         Intent intent = getIntent();
59         String action = intent != null ? intent.getAction() : null;
60 
61         // This should probably be moved so as to
62         // send out the request to /checksearchdomain as early as possible.
63         mSearchDomainHelper = QsbApplication.get(this).getSearchBaseUrlHelper();
64 
65         if (Intent.ACTION_WEB_SEARCH.equals(action) || Intent.ACTION_SEARCH.equals(action)) {
66             handleWebSearchIntent(intent);
67         }
68 
69         finish();
70     }
71 
72     /**
73      * Construct the language code (hl= paramater) for the given locale.
74      */
getLanguage(Locale locale)75     public static String getLanguage(Locale locale) {
76         String language = locale.getLanguage();
77         StringBuilder hl = new StringBuilder(language);
78         String country = locale.getCountry();
79 
80         if (!TextUtils.isEmpty(country) && useLangCountryHl(language, country)) {
81             hl.append('-');
82             hl.append(country);
83         }
84 
85         if (DBG) Log.d(TAG, "language " + language + ", country " + country + " -> hl=" + hl);
86         return hl.toString();
87     }
88 
89     // TODO: This is a workaround for bug 3232296. When that is fixed, this method can be removed.
useLangCountryHl(String language, String country)90     private static boolean useLangCountryHl(String language, String country) {
91         // lang-country is currently only supported for a small number of locales
92         if ("en".equals(language)) {
93             return "GB".equals(country);
94         } else if ("zh".equals(language)) {
95             return "CN".equals(country) || "TW".equals(country);
96         } else if ("pt".equals(language)) {
97             return "BR".equals(country) || "PT".equals(country);
98         } else {
99             return false;
100         }
101     }
102 
handleWebSearchIntent(Intent intent)103     private void handleWebSearchIntent(Intent intent) {
104         Intent launchUriIntent = createLaunchUriIntentFromSearchIntent(intent);
105         PendingIntent pending =
106             intent.getParcelableExtra(SearchManager.EXTRA_WEB_SEARCH_PENDINGINTENT);
107         if (pending == null || !launchPendingIntent(pending, launchUriIntent)) {
108             launchIntent(launchUriIntent);
109         }
110     }
111 
createLaunchUriIntentFromSearchIntent(Intent intent)112     private Intent createLaunchUriIntentFromSearchIntent(Intent intent) {
113         String query = intent.getStringExtra(SearchManager.QUERY);
114         if (TextUtils.isEmpty(query)) {
115             Log.w(TAG, "Got search intent with no query.");
116             return null;
117         }
118 
119         // If the caller specified a 'source' url parameter, use that and if not use default.
120         Bundle appSearchData = intent.getBundleExtra(SearchManager.APP_DATA);
121         String source = GOOGLE_SEARCH_SOURCE_UNKNOWN;
122         if (appSearchData != null) {
123             source = appSearchData.getString(Search.SOURCE);
124         }
125 
126         // The browser can pass along an application id which it uses to figure out which
127         // window to place a new search into. So if this exists, we'll pass it back to
128         // the browser. Otherwise, add our own package name as the application id, so that
129         // the browser can organize all searches launched from this provider together.
130         String applicationId = intent.getStringExtra(Browser.EXTRA_APPLICATION_ID);
131         if (applicationId == null) {
132             applicationId = getPackageName();
133         }
134 
135         try {
136             String searchUri = mSearchDomainHelper.getSearchBaseUrl()
137                     + "&source=android-" + source
138                     + "&q=" + URLEncoder.encode(query, "UTF-8");
139             Intent launchUriIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(searchUri));
140             launchUriIntent.putExtra(Browser.EXTRA_APPLICATION_ID, applicationId);
141             launchUriIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
142             return launchUriIntent;
143         } catch (UnsupportedEncodingException e) {
144             Log.w(TAG, "Error", e);
145             return null;
146         }
147 
148     }
149 
launchIntent(Intent intent)150     private void launchIntent(Intent intent) {
151         try {
152             Log.i(TAG, "Launching intent: " + intent.toUri(0));
153             startActivity(intent);
154         } catch (ActivityNotFoundException ex) {
155             Log.w(TAG, "No activity found to handle: " + intent);
156         }
157     }
158 
launchPendingIntent(PendingIntent pending, Intent fillIn)159     private boolean launchPendingIntent(PendingIntent pending, Intent fillIn) {
160         try {
161             pending.send(this, Activity.RESULT_OK, fillIn);
162             return true;
163         } catch (PendingIntent.CanceledException ex) {
164             Log.i(TAG, "Pending intent cancelled: " + pending);
165             return false;
166         }
167     }
168 
169 }
170