Home | History | Annotate | Download | only in search 
      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 android.app.PendingIntent;
     19 import android.app.SearchManager;
     20 import android.app.SearchableInfo;
     21 import android.content.ActivityNotFoundException;
     22 import android.content.ComponentName;
     23 import android.content.Context;
     24 import android.content.Intent;
     25 import android.content.pm.ActivityInfo;
     26 import android.content.pm.PackageManager;
     27 import android.database.Cursor;
     28 import android.os.Bundle;
     29 import android.provider.Browser;
     30 import android.text.TextUtils;
     31 import android.util.Log;
     32 
     33 public class DefaultSearchEngine implements SearchEngine {
     34 
     35     private static final String TAG = "DefaultSearchEngine";
     36 
     37     private final SearchableInfo mSearchable;
     38 
     39     private final CharSequence mLabel;
     40 
     41     private DefaultSearchEngine(Context context, SearchableInfo searchable) {
     42         mSearchable = searchable;
     43         mLabel = loadLabel(context, mSearchable.getSearchActivity());
     44     }
     45 
     46     public static DefaultSearchEngine create(Context context) {
     47         SearchManager searchManager =
     48                 (SearchManager) context.getSystemService(Context.SEARCH_SERVICE);
     49         ComponentName name = searchManager.getWebSearchActivity();
     50         if (name == null) return null;
     51         SearchableInfo searchable = searchManager.getSearchableInfo(name);
     52         if (searchable == null) return null;
     53         return new DefaultSearchEngine(context, searchable);
     54     }
     55 
     56     private CharSequence loadLabel(Context context, ComponentName activityName) {
     57         PackageManager pm = context.getPackageManager();
     58         try {
     59             ActivityInfo ai = pm.getActivityInfo(activityName, 0);
     60             return ai.loadLabel(pm);
     61         } catch (PackageManager.NameNotFoundException ex) {
     62             Log.e(TAG, "Web search activity not found: " + activityName);
     63             return null;
     64         }
     65     }
     66 
     67     public String getName() {
     68         String packageName = mSearchable.getSearchActivity().getPackageName();
     69         // Use "google" as name to avoid showing Google twice (app + OpenSearch)
     70         if ("com.google.android.googlequicksearchbox".equals(packageName)) {
     71             return SearchEngine.GOOGLE;
     72         } else if ("com.android.quicksearchbox".equals(packageName)) {
     73             return SearchEngine.GOOGLE;
     74         } else {
     75             return packageName;
     76         }
     77     }
     78 
     79     public CharSequence getLabel() {
     80         return mLabel;
     81     }
     82 
     83     public void startSearch(Context context, String query, Bundle appData, String extraData) {
     84         try {
     85             Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
     86             intent.setComponent(mSearchable.getSearchActivity());
     87             intent.addCategory(Intent.CATEGORY_DEFAULT);
     88             intent.putExtra(SearchManager.QUERY, query);
     89             if (appData != null) {
     90                 intent.putExtra(SearchManager.APP_DATA, appData);
     91             }
     92             if (extraData != null) {
     93                 intent.putExtra(SearchManager.EXTRA_DATA_KEY, extraData);
     94             }
     95             intent.putExtra(Browser.EXTRA_APPLICATION_ID, context.getPackageName());
     96             Intent viewIntent = new Intent(Intent.ACTION_VIEW);
     97             viewIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
     98             viewIntent.setPackage(context.getPackageName());
     99             PendingIntent pending = PendingIntent.getActivity(context, 0, viewIntent,
    100                     PendingIntent.FLAG_ONE_SHOT);
    101             intent.putExtra(SearchManager.EXTRA_WEB_SEARCH_PENDINGINTENT, pending);
    102             context.startActivity(intent);
    103         } catch (ActivityNotFoundException ex) {
    104             Log.e(TAG, "Web search activity not found: " + mSearchable.getSearchActivity());
    105         }
    106     }
    107 
    108     public Cursor getSuggestions(Context context, String query) {
    109         SearchManager searchManager =
    110                 (SearchManager) context.getSystemService(Context.SEARCH_SERVICE);
    111         return searchManager.getSuggestions(mSearchable, query);
    112     }
    113 
    114     public boolean supportsSuggestions() {
    115         return !TextUtils.isEmpty(mSearchable.getSuggestAuthority());
    116     }
    117 
    118     public void close() {
    119     }
    120 
    121     public boolean supportsVoiceSearch() {
    122         return getName().equals(SearchEngine.GOOGLE);
    123     }
    124 
    125     @Override
    126     public String toString() {
    127         return "ActivitySearchEngine{" + mSearchable + "}";
    128     }
    129 
    130     @Override
    131     public boolean wantsEmptyQuery() {
    132         return false;
    133     }
    134 
    135 }
    136