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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 
     17 package com.android.quicksearchbox;
     18 
     19 
     20 import com.android.quicksearchbox.util.Util;
     21 
     22 import android.content.ComponentName;
     23 import android.content.Context;
     24 import android.content.Intent;
     25 import android.content.pm.ActivityInfo;
     26 import android.graphics.drawable.Drawable;
     27 import android.net.Uri;
     28 import android.os.Bundle;
     29 import android.text.TextUtils;
     30 import android.util.Log;
     31 
     32 /**
     33  * The apps search source.
     34  */
     35 public class AppsCorpus extends SingleSourceCorpus {
     36 
     37     private static final String TAG = "QSB.AppsCorpus";
     38 
     39     private static final String APPS_CORPUS_NAME = "apps";
     40 
     41     public AppsCorpus(Context context, Config config, Source appsSource) {
     42         super(context, config, appsSource);
     43     }
     44 
     45     @Override
     46     public CharSequence getLabel() {
     47         return getContext().getText(R.string.corpus_label_apps);
     48     }
     49 
     50     @Override
     51     public CharSequence getHint() {
     52         return getContext().getText(R.string.corpus_hint_apps);
     53     }
     54 
     55     @Override
     56     public Drawable getCorpusIcon() {
     57         return getContext().getResources().getDrawable(R.drawable.corpus_icon_apps);
     58     }
     59 
     60     @Override
     61     public Uri getCorpusIconUri() {
     62         return Util.getResourceUri(getContext(), R.drawable.corpus_icon_apps);
     63     }
     64 
     65     @Override
     66     public String getName() {
     67         return APPS_CORPUS_NAME;
     68     }
     69 
     70     @Override
     71     public CharSequence getSettingsDescription() {
     72         return getContext().getText(R.string.corpus_description_apps);
     73     }
     74 
     75     @Override
     76     public Intent createSearchIntent(String query, Bundle appData) {
     77         Intent appSearchIntent = createAppSearchIntent(query, appData);
     78         if (appSearchIntent != null) {
     79             return appSearchIntent;
     80         } else {
     81             // Fall back to sending the intent to ApplicationsProvider
     82             return super.createSearchIntent(query, appData);
     83         }
     84     }
     85 
     86     /**
     87      * Creates an intent that starts the search activity specified in
     88      * R.string.apps_search_activity.
     89      *
     90      * @return An intent, or {@code null} if the search activity is not set or can't be found.
     91      */
     92     private Intent createAppSearchIntent(String query, Bundle appData) {
     93         ComponentName name = getComponentName(getContext(), R.string.apps_search_activity);
     94         if (name == null) return null;
     95         Intent intent = AbstractSource.createSourceSearchIntent(name, query, appData);
     96         if (intent == null) return null;
     97         ActivityInfo ai = intent.resolveActivityInfo(getContext().getPackageManager(), 0);
     98         if (ai != null) {
     99             return intent;
    100         } else {
    101             Log.w(TAG, "Can't find app search activity " + name);
    102             return null;
    103         }
    104     }
    105 
    106     private static ComponentName getComponentName(Context context, int res) {
    107         String nameStr = context.getString(res);
    108         if (TextUtils.isEmpty(nameStr)) {
    109             return null;
    110         } else {
    111             return ComponentName.unflattenFromString(nameStr);
    112         }
    113     }
    114 }
    115