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