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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, Source appsSource) {
     42         super(context, 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         // TODO: Should we have a different icon for the apps corpus?
     58         return getContext().getResources().getDrawable(android.R.drawable.sym_def_app_icon);
     59     }
     60 
     61     @Override
     62     public Uri getCorpusIconUri() {
     63         return Util.getResourceUri(getContext(), android.R.drawable.sym_def_app_icon);
     64     }
     65 
     66     @Override
     67     public String getName() {
     68         return APPS_CORPUS_NAME;
     69     }
     70 
     71     @Override
     72     public CharSequence getSettingsDescription() {
     73         return getContext().getText(R.string.corpus_description_apps);
     74     }
     75 
     76     @Override
     77     public Intent createSearchIntent(String query, Bundle appData) {
     78         Intent appSearchIntent = createAppSearchIntent(query, appData);
     79         if (appSearchIntent != null) {
     80             return appSearchIntent;
     81         } else {
     82             // Fall back to sending the intent to ApplicationsProvider
     83             return super.createSearchIntent(query, appData);
     84         }
     85     }
     86 
     87     /**
     88      * Creates an intent that starts the search activity specified in
     89      * R.string.apps_search_activity.
     90      *
     91      * @return An intent, or {@code null} if the search activity is not set or can't be found.
     92      */
     93     private Intent createAppSearchIntent(String query, Bundle appData) {
     94         ComponentName name = getComponentName(getContext(), R.string.apps_search_activity);
     95         if (name == null) return null;
     96         Intent intent = SearchableSource.createSourceSearchIntent(name, query, appData);
     97         if (intent == null) return null;
     98         ActivityInfo ai = intent.resolveActivityInfo(getContext().getPackageManager(), 0);
     99         if (ai != null) {
    100             return intent;
    101         } else {
    102             Log.w(TAG, "Can't find app search acitivity " + name);
    103             return null;
    104         }
    105     }
    106 
    107     private static ComponentName getComponentName(Context context, int res) {
    108         String nameStr = context.getString(res);
    109         if (TextUtils.isEmpty(nameStr)) {
    110             return null;
    111         } else {
    112             return ComponentName.unflattenFromString(nameStr);
    113         }
    114     }
    115 }
    116