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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.quicksearchbox.google;
     17 
     18 import android.content.ComponentName;
     19 import android.content.Context;
     20 import android.content.Intent;
     21 import android.os.Bundle;
     22 import android.os.Handler;
     23 
     24 import com.android.quicksearchbox.AbstractInternalSource;
     25 import com.android.quicksearchbox.CursorBackedSourceResult;
     26 import com.android.quicksearchbox.R;
     27 import com.android.quicksearchbox.SourceResult;
     28 import com.android.quicksearchbox.SuggestionCursor;
     29 import com.android.quicksearchbox.util.NamedTaskExecutor;
     30 
     31 /**
     32  * Special source implementation for Google suggestions.
     33  */
     34 public abstract class AbstractGoogleSource extends AbstractInternalSource implements GoogleSource {
     35 
     36     /*
     37      * This name corresponds to what was used in previous version of quick search box. We use the
     38      * same name so that shortcuts continue to work after an upgrade. (It also makes logging more
     39      * consistent).
     40      */
     41     private static final String GOOGLE_SOURCE_NAME =
     42         "com.android.quicksearchbox/.google.GoogleSearch";
     43 
     44     public AbstractGoogleSource(Context context, Handler uiThread, NamedTaskExecutor iconLoader) {
     45         super(context, uiThread, iconLoader);
     46     }
     47 
     48     @Override
     49     public abstract ComponentName getIntentComponent();
     50 
     51     @Override
     52     public abstract SuggestionCursor refreshShortcut(String shortcutId, String extraData);
     53 
     54     /**
     55      * Called by QSB to get web suggestions for a query.
     56      */
     57     @Override
     58     public abstract SourceResult queryInternal(String query);
     59 
     60     /**
     61      * Called by external apps to get web suggestions for a query.
     62      */
     63     @Override
     64     public abstract SourceResult queryExternal(String query);
     65 
     66     @Override
     67     public Intent createVoiceSearchIntent(Bundle appData) {
     68         return createVoiceWebSearchIntent(appData);
     69     }
     70 
     71     @Override
     72     public String getDefaultIntentAction() {
     73         return Intent.ACTION_WEB_SEARCH;
     74     }
     75 
     76     @Override
     77     public CharSequence getHint() {
     78         return getContext().getString(R.string.google_search_hint);
     79     }
     80 
     81     @Override
     82     public CharSequence getLabel() {
     83         return getContext().getString(R.string.google_search_label);
     84     }
     85 
     86     @Override
     87     public String getName() {
     88         return GOOGLE_SOURCE_NAME;
     89     }
     90 
     91     @Override
     92     public CharSequence getSettingsDescription() {
     93         return getContext().getString(R.string.google_search_description);
     94     }
     95 
     96     @Override
     97     protected int getSourceIconResource() {
     98         return R.mipmap.google_icon;
     99     }
    100 
    101     @Override
    102     public SourceResult getSuggestions(String query, int queryLimit) {
    103         return emptyIfNull(queryInternal(query), query);
    104     }
    105 
    106     public SourceResult getSuggestionsExternal(String query) {
    107         return emptyIfNull(queryExternal(query), query);
    108     }
    109 
    110     private SourceResult emptyIfNull(SourceResult result, String query) {
    111         return result == null ? new CursorBackedSourceResult(this, query) : result;
    112     }
    113 
    114     @Override
    115     public boolean voiceSearchEnabled() {
    116         return true;
    117     }
    118 
    119     @Override
    120     public boolean includeInAll() {
    121         return true;
    122     }
    123 
    124 }
    125