Home | History | Annotate | Download | only in deletionhelper 
      1 /*
      2  * Copyright (C) 2016 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.storagemanager.deletionhelper;
     18 
     19 import android.content.Context;
     20 import android.support.v7.preference.Preference;
     21 import android.text.format.DateUtils;
     22 
     23 import com.android.storagemanager.utils.IconProvider;
     24 
     25 import java.io.File;
     26 
     27 /**
     28  * DownloadsFilePreference is a preference representing a file in the Downloads folder with a
     29  * checkbox that represents if the file should be deleted.
     30  */
     31 public class DownloadsFilePreference extends NestedDeletionPreference {
     32     private File mFile;
     33 
     34     public DownloadsFilePreference(Context context, File file, IconProvider iconProvider) {
     35         super(context);
     36         mFile = file;
     37         setKey(mFile.getPath());
     38         setTitle(file.getName());
     39         setItemSize(file.length());
     40         setSummary(
     41                 DateUtils.formatDateTime(
     42                         context, mFile.lastModified(), DateUtils.FORMAT_SHOW_DATE));
     43         setIcon(iconProvider.loadMimeIcon(IconProvider.getMimeType(mFile)));
     44 
     45         // We turn off persistence because we need the file preferences to reset their check when
     46         // you return to the view.
     47         setPersistent(false);
     48     }
     49 
     50     public File getFile() {
     51         return mFile;
     52     }
     53 
     54     @Override
     55     public int compareTo(Preference other) {
     56         if (other == null) {
     57             return 1;
     58         }
     59 
     60         if (other instanceof DownloadsFilePreference) {
     61             File otherFile = ((DownloadsFilePreference) other).getFile();
     62             File file = getFile();
     63             // Note: The order is reversed in this comparison because we want the value to be less
     64             // than 0 if we're bigger. Long.compare returns less than 0 if first < second.
     65             int comparison = Long.compare(otherFile.length(), file.length());
     66             if (comparison == 0) {
     67                 comparison = file.compareTo(otherFile);
     68             }
     69             return comparison;
     70         } else {
     71             // If a non-DownloadsFilePreference appears, consider ourselves to be greater.
     72             // This means if a non-DownloadsFilePreference sneaks into a DownloadsPreferenceGroup
     73             // then the DownloadsFilePreference will appear higher.
     74             return 1;
     75         }
     76     }
     77 }
     78