SearchEngines.java revision d69f51ddd5b6c28c9d16725e65facaf830d650e1 
1/*
2 * Copyright (C) 2010 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 */
16package com.android.browser.search;
17
18import com.android.browser.R;
19
20import android.app.SearchManager;
21import android.content.ComponentName;
22import android.content.Context;
23import android.content.pm.ActivityInfo;
24import android.content.pm.PackageManager;
25import android.content.res.Resources;
26import android.text.TextUtils;
27import android.util.Log;
28
29import java.util.ArrayList;
30import java.util.List;
31
32public class SearchEngines {
33
34    private static final String TAG = "SearchEngines";
35
36    public static SearchEngine getDefaultSearchEngine(Context context) {
37        return DefaultSearchEngine.create(context);
38    }
39
40    public static List<SearchEngineInfo> getSearchEngineInfos(Context context) {
41        ArrayList<SearchEngineInfo> searchEngineInfos = new ArrayList<SearchEngineInfo>();
42        Resources res = context.getResources();
43        String[] searchEngines = res.getStringArray(R.array.search_engines);
44        for (int i = 0; i < searchEngines.length; i++) {
45            String name = searchEngines[i];
46            SearchEngineInfo info = new SearchEngineInfo(context, name);
47            searchEngineInfos.add(info);
48        }
49        return searchEngineInfos;
50    }
51
52    public static SearchEngine get(Context context, String name) {
53        // TODO: cache
54        SearchEngine defaultSearchEngine = getDefaultSearchEngine(context);
55        if (TextUtils.isEmpty(name)
56                || (defaultSearchEngine != null && name.equals(defaultSearchEngine.getName()))) {
57            return defaultSearchEngine;
58        }
59        SearchEngineInfo searchEngineInfo = getSearchEngineInfo(context, name);
60        if (searchEngineInfo == null) return defaultSearchEngine;
61        return new OpenSearchSearchEngine(context, searchEngineInfo);
62    }
63
64    private static SearchEngineInfo getSearchEngineInfo(Context context, String name) {
65        try {
66            return new SearchEngineInfo(context, name);
67        } catch (IllegalArgumentException exception) {
68            Log.e(TAG, "Cannot load search engine " + name, exception);
69            return null;
70        }
71    }
72
73}
74