Home | History | Annotate | Download | only in savedqueries 
      1 /*
      2  * Copyright (C) 2017 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.settings.intelligence.search.savedqueries;
     18 
     19 import android.app.LoaderManager;
     20 import android.content.Context;
     21 import android.content.Loader;
     22 import android.os.Bundle;
     23 import android.util.Log;
     24 import android.view.Menu;
     25 import android.view.MenuItem;
     26 
     27 import com.android.settings.intelligence.R;
     28 import com.android.settings.intelligence.overlay.FeatureFactory;
     29 import com.android.settings.intelligence.search.SearchFeatureProvider;
     30 import com.android.settings.intelligence.search.SearchFragment;
     31 import com.android.settings.intelligence.search.SearchResult;
     32 import com.android.settings.intelligence.search.SearchResultsAdapter;
     33 
     34 import java.util.List;
     35 
     36 public class SavedQueryController implements LoaderManager.LoaderCallbacks,
     37         MenuItem.OnMenuItemClickListener {
     38 
     39     // TODO: make a generic background task manager to handle one-off tasks like this one.
     40     private static final String ARG_QUERY = "remove_query";
     41     private static final String TAG = "SearchSavedQueryCtrl";
     42 
     43     private static final int MENU_SEARCH_HISTORY = 1000;
     44 
     45     private final Context mContext;
     46     private final LoaderManager mLoaderManager;
     47     private final SearchFeatureProvider mSearchFeatureProvider;
     48     private final SearchResultsAdapter mResultAdapter;
     49 
     50     public SavedQueryController(Context context, LoaderManager loaderManager,
     51             SearchResultsAdapter resultsAdapter) {
     52         mContext = context;
     53         mLoaderManager = loaderManager;
     54         mResultAdapter = resultsAdapter;
     55         mSearchFeatureProvider = FeatureFactory.get(context)
     56                 .searchFeatureProvider();
     57     }
     58 
     59     @Override
     60     public Loader onCreateLoader(int id, Bundle args) {
     61         switch (id) {
     62             case SearchFragment.SearchLoaderId.SAVE_QUERY_TASK:
     63                 return new SavedQueryRecorder(mContext, args.getString(ARG_QUERY));
     64             case SearchFragment.SearchLoaderId.REMOVE_QUERY_TASK:
     65                 return new SavedQueryRemover(mContext);
     66             case SearchFragment.SearchLoaderId.SAVED_QUERIES:
     67                 return mSearchFeatureProvider.getSavedQueryLoader(mContext);
     68         }
     69         return null;
     70     }
     71 
     72     @Override
     73     public void onLoadFinished(Loader loader, Object data) {
     74         switch (loader.getId()) {
     75             case SearchFragment.SearchLoaderId.REMOVE_QUERY_TASK:
     76                 mLoaderManager.restartLoader(SearchFragment.SearchLoaderId.SAVED_QUERIES,
     77                         null /* args */, this /* callback */);
     78                 break;
     79             case SearchFragment.SearchLoaderId.SAVED_QUERIES:
     80                 if (SearchFeatureProvider.DEBUG) {
     81                     Log.d(TAG, "Saved queries loaded");
     82                 }
     83                 mResultAdapter.displaySavedQuery((List<SearchResult>) data);
     84                 break;
     85         }
     86     }
     87 
     88     @Override
     89     public void onLoaderReset(Loader loader) {
     90     }
     91 
     92     @Override
     93     public boolean onMenuItemClick(MenuItem item) {
     94         if (item.getItemId() != MENU_SEARCH_HISTORY) {
     95             return false;
     96         }
     97         removeQueries();
     98         return true;
     99     }
    100 
    101     public void buildMenuItem(Menu menu) {
    102         final MenuItem item =
    103                 menu.add(Menu.NONE, MENU_SEARCH_HISTORY, Menu.NONE, R.string.search_clear_history);
    104         item.setOnMenuItemClickListener(this);
    105     }
    106 
    107     public void saveQuery(String query) {
    108         final Bundle args = new Bundle();
    109         args.putString(ARG_QUERY, query);
    110         mLoaderManager.restartLoader(SearchFragment.SearchLoaderId.SAVE_QUERY_TASK, args,
    111                 this /* callback */);
    112     }
    113 
    114     /**
    115      * Remove all saved queries from DB
    116      */
    117     public void removeQueries() {
    118         final Bundle args = new Bundle();
    119         mLoaderManager.restartLoader(SearchFragment.SearchLoaderId.REMOVE_QUERY_TASK, args,
    120                 this /* callback */);
    121     }
    122 
    123     public void loadSavedQueries() {
    124         if (SearchFeatureProvider.DEBUG) {
    125             Log.d(TAG, "loading saved queries");
    126         }
    127         mLoaderManager.restartLoader(SearchFragment.SearchLoaderId.SAVED_QUERIES, null /* args */,
    128                 this /* callback */);
    129     }
    130 }
    131