SearchEngines.java revision 5119edd5744cfc6d3a8ed480a8853586c737bed4 
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.BrowserSettings;
19import com.android.browser.InstantSearchEngine;
20import com.android.browser.R;
21
22import android.content.Context;
23import android.content.res.Resources;
24import android.text.TextUtils;
25import android.util.Log;
26
27import java.util.ArrayList;
28import java.util.List;
29
30public class SearchEngines {
31
32    private static final String TAG = "SearchEngines";
33
34    public static SearchEngine getDefaultSearchEngine(Context context) {
35        if (BrowserSettings.getInstance().useInstant()) {
36            return new InstantSearchEngine(context, DefaultSearchEngine.create(context));
37        }
38
39        return DefaultSearchEngine.create(context);
40    }
41
42    public static List<SearchEngineInfo> getSearchEngineInfos(Context context) {
43        ArrayList<SearchEngineInfo> searchEngineInfos = new ArrayList<SearchEngineInfo>();
44        Resources res = context.getResources();
45        String[] searchEngines = res.getStringArray(R.array.search_engines);
46        for (int i = 0; i < searchEngines.length; i++) {
47            String name = searchEngines[i];
48            SearchEngineInfo info = new SearchEngineInfo(context, name);
49            searchEngineInfos.add(info);
50        }
51        return searchEngineInfos;
52    }
53
54    public static SearchEngine get(Context context, String name) {
55        // TODO: cache
56        SearchEngine defaultSearchEngine = getDefaultSearchEngine(context);
57        if (TextUtils.isEmpty(name)
58                || (defaultSearchEngine != null && name.equals(defaultSearchEngine.getName()))) {
59            return defaultSearchEngine;
60        }
61        SearchEngineInfo searchEngineInfo = getSearchEngineInfo(context, name);
62        if (searchEngineInfo == null) return defaultSearchEngine;
63        return new OpenSearchSearchEngine(context, searchEngineInfo);
64    }
65
66    public static SearchEngineInfo getSearchEngineInfo(Context context, String name) {
67        try {
68            return new SearchEngineInfo(context, name);
69        } catch (IllegalArgumentException exception) {
70            Log.e(TAG, "Cannot load search engine " + name, exception);
71            return null;
72        }
73    }
74
75}
76