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      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  */
     16 package com.android.browser.search;
     17 
     18 import com.android.browser.BrowserSettings;
     19 import com.android.browser.InstantSearchEngine;
     20 import com.android.browser.R;
     21 
     22 import android.content.Context;
     23 import android.content.res.Resources;
     24 import android.text.TextUtils;
     25 import android.util.Log;
     26 
     27 import java.util.ArrayList;
     28 import java.util.List;
     29 
     30 public class SearchEngines {
     31 
     32     private static final String TAG = "SearchEngines";
     33 
     34     public static SearchEngine getDefaultSearchEngine(Context context) {
     35         if (BrowserSettings.getInstance().useInstantSearch()) {
     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