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      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.os.Handler;
     21 import android.support.v7.preference.Preference;
     22 import android.support.v7.preference.PreferenceViewHolder;
     23 import android.util.AttributeSet;
     24 import android.text.format.Formatter;
     25 
     26 import android.view.View;
     27 import com.android.internal.logging.MetricsLogger;
     28 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
     29 import com.android.storagemanager.R;
     30 
     31 /**
     32  * Preference to handle the deletion of photos and videos in the Deletion Helper.
     33  */
     34 public class PhotosDeletionPreference extends DeletionPreference {
     35     public static final int DAYS_TO_KEEP_DEFAULT = 30;
     36     public static final int DAYS_TO_KEEP_MIN = 0;
     37     private int mDaysToKeep;
     38     private boolean mLoaded;
     39 
     40     public PhotosDeletionPreference(Context context, AttributeSet attrs) {
     41         super(context, attrs);
     42         mDaysToKeep = DAYS_TO_KEEP_DEFAULT;
     43         updatePreferenceText(0, 0);
     44         setTitle(R.string.deletion_helper_photos_loading_title);
     45         setSummary(R.string.deletion_helper_photos_loading_summary);
     46     }
     47 
     48     /**
     49      * Updates the title and summary of the preference with fresh information.
     50      */
     51     public void updatePreferenceText(int items, long bytes) {
     52         Context context = getContext();
     53         setTitle(context.getString(R.string.deletion_helper_photos_title));
     54         mLoaded = true;
     55         setSummary(
     56                 context.getString(
     57                         R.string.deletion_helper_photos_summary,
     58                         Formatter.formatFileSize(context, bytes),
     59                         mDaysToKeep));
     60     }
     61 
     62     public void setDaysToKeep(int daysToKeep) {
     63         mDaysToKeep = daysToKeep;
     64         updatePreferenceText(0, 0);
     65     }
     66 
     67     @Override
     68     public void onFreeableChanged(int items, long bytes) {
     69         // Because these operations may cause UI churn, we need to ensure they run on the main
     70         // thread.
     71         new Handler(getContext().getMainLooper()).post(new Runnable() {
     72             @Override
     73             public void run() {
     74                 PhotosDeletionPreference.super.onFreeableChanged(items, bytes);
     75                 updatePreferenceText(items, bytes);
     76             }
     77         });
     78     }
     79 
     80     @Override
     81     public boolean onPreferenceChange(Preference preference, Object newValue) {
     82         boolean checked = (boolean) newValue;
     83         MetricsLogger.action(getContext(), MetricsEvent.ACTION_DELETION_SELECTION_PHOTOS, checked);
     84         return super.onPreferenceChange(preference, newValue);
     85     }
     86 
     87     @Override
     88     public void onBindViewHolder(PreferenceViewHolder holder) {
     89         super.onBindViewHolder(holder);
     90         holder.findViewById(com.android.internal.R.id.icon).setVisibility(View.GONE);
     91     }
     92 
     93     public boolean isLoaded() {
     94         return mLoaded;
     95     }
     96 }
     97