GoogleSearch.java revision c953ef06f0fc1fb4157fe67aa145cf702ee204d0 
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
17package com.android.quicksearchbox.google;
18
19import com.android.common.Search;
20import com.android.quicksearchbox.QsbApplication;
21
22import android.app.Activity;
23import android.app.SearchManager;
24import android.content.Intent;
25import android.net.Uri;
26import android.os.Bundle;
27import android.provider.Browser;
28import android.text.TextUtils;
29import android.util.Log;
30
31import java.io.UnsupportedEncodingException;
32import java.net.URLEncoder;
33import java.util.Locale;
34
35/**
36 * This class is purely here to get search queries and route them to
37 * the global {@link Intent#ACTION_WEB_SEARCH}.
38 */
39public class GoogleSearch extends Activity {
40    private static final String TAG = "GoogleSearch";
41    private static final boolean DBG = false;
42
43    // Used to figure out which domain to base search requests
44    // on.
45    private SearchBaseUrlHelper mSearchDomainHelper;
46
47    // "source" parameter for Google search requests from unknown sources (e.g. apps). This will get
48    // prefixed with the string 'android-' before being sent on the wire.
49    final static String GOOGLE_SEARCH_SOURCE_UNKNOWN = "unknown";
50
51    @Override
52    protected void onCreate(Bundle savedInstanceState) {
53        super.onCreate(savedInstanceState);
54        Intent intent = getIntent();
55        String action = intent != null ? intent.getAction() : null;
56
57        // This should probably be moved so as to
58        // send out the request to /checksearchdomain as early as possible.
59        mSearchDomainHelper = QsbApplication.get(this).getSearchBaseUrlHelper();
60
61        if (Intent.ACTION_WEB_SEARCH.equals(action) || Intent.ACTION_SEARCH.equals(action)) {
62            handleWebSearchIntent(intent);
63        }
64
65        finish();
66    }
67
68    /**
69     * Construct the language code (hl= paramater) for the given locale.
70     */
71    public static String getLanguage(Locale locale) {
72        String language = locale.getLanguage();
73        StringBuilder hl = new StringBuilder(language);
74        String country = locale.getCountry();
75        if (!TextUtils.isEmpty(country)) {
76            hl.append('-');
77            hl.append(country);
78        }
79
80        if (DBG) Log.d(TAG, "language " + language + ", country " + country + " -> hl=" + hl);
81        return hl.toString();
82    }
83
84    private void handleWebSearchIntent(Intent intent) {
85        String query = intent.getStringExtra(SearchManager.QUERY);
86        if (TextUtils.isEmpty(query)) {
87            Log.w(TAG, "Got search intent with no query.");
88            return;
89        }
90
91        // If the caller specified a 'source' url parameter, use that and if not use default.
92        Bundle appSearchData = intent.getBundleExtra(SearchManager.APP_DATA);
93        String source = GOOGLE_SEARCH_SOURCE_UNKNOWN;
94        if (appSearchData != null) {
95            source = appSearchData.getString(Search.SOURCE);
96        }
97
98        // The browser can pass along an application id which it uses to figure out which
99        // window to place a new search into. So if this exists, we'll pass it back to
100        // the browser. Otherwise, add our own package name as the application id, so that
101        // the browser can organize all searches launched from this provider together.
102        String applicationId = intent.getStringExtra(Browser.EXTRA_APPLICATION_ID);
103        if (applicationId == null) {
104            applicationId = getPackageName();
105        }
106
107        try {
108            String searchUri = mSearchDomainHelper.getSearchBaseUrl()
109                    + "&source=android-" + source
110                    + "&q=" + URLEncoder.encode(query, "UTF-8");
111            Intent launchUriIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(searchUri));
112            launchUriIntent.putExtra(Browser.EXTRA_APPLICATION_ID, applicationId);
113            launchUriIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
114            startActivity(launchUriIntent);
115        } catch (UnsupportedEncodingException e) {
116            Log.w(TAG, "Error", e);
117        }
118    }
119
120}
121