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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.documentsui.services;
     18 
     19 import static com.android.documentsui.Shared.DEBUG;
     20 import static com.android.documentsui.services.FileOperationService.OPERATION_DELETE;
     21 
     22 import android.app.Notification;
     23 import android.app.Notification.Builder;
     24 import android.content.Context;
     25 import android.util.Log;
     26 
     27 import com.android.documentsui.Metrics;
     28 import com.android.documentsui.R;
     29 import com.android.documentsui.model.DocumentInfo;
     30 import com.android.documentsui.model.DocumentStack;
     31 
     32 import java.util.List;
     33 
     34 final class DeleteJob extends Job {
     35 
     36     private static final String TAG = "DeleteJob";
     37     private List<DocumentInfo> mSrcs;
     38     final DocumentInfo mSrcParent;
     39 
     40     /**
     41      * Moves files to a destination identified by {@code destination}.
     42      * Performs most work by delegating to CopyJob, then deleting
     43      * a file after it has been copied.
     44      *
     45      * @see @link {@link Job} constructor for most param descriptions.
     46      *
     47      * @param srcs List of files to delete.
     48      * @param srcParent Parent of all source files.
     49      */
     50     DeleteJob(Context service, Context appContext, Listener listener,
     51             String id, DocumentStack stack, List<DocumentInfo> srcs, DocumentInfo srcParent) {
     52         super(service, appContext, listener, OPERATION_DELETE, id, stack);
     53         this.mSrcs = srcs;
     54         this.mSrcParent = srcParent;
     55     }
     56 
     57     @Override
     58     Builder createProgressBuilder() {
     59         return super.createProgressBuilder(
     60                 service.getString(R.string.delete_notification_title),
     61                 R.drawable.ic_menu_delete,
     62                 service.getString(android.R.string.cancel),
     63                 R.drawable.ic_cab_cancel);
     64     }
     65 
     66     @Override
     67     public Notification getSetupNotification() {
     68         return getSetupNotification(service.getString(R.string.delete_preparing));
     69     }
     70 
     71     @Override
     72     Notification getFailureNotification() {
     73         return getFailureNotification(
     74                 R.plurals.delete_error_notification_title, R.drawable.ic_menu_delete);
     75     }
     76 
     77     @Override
     78     Notification getWarningNotification() {
     79         throw new UnsupportedOperationException();
     80     }
     81 
     82     @Override
     83     void start() {
     84         for (DocumentInfo doc : mSrcs) {
     85             if (DEBUG) Log.d(TAG, "Deleting document @ " + doc.derivedUri);
     86             try {
     87                 deleteDocument(doc, mSrcParent);
     88             } catch (ResourceException e) {
     89                 Log.e(TAG, "Failed to delete document @ " + doc.derivedUri, e);
     90                 onFileFailed(doc);
     91             }
     92         }
     93         Metrics.logFileOperation(service, operationType, mSrcs, null);
     94     }
     95 
     96     @Override
     97     public String toString() {
     98         return new StringBuilder()
     99                 .append("DeleteJob")
    100                 .append("{")
    101                 .append("id=" + id)
    102                 .append(", srcs=" + mSrcs)
    103                 .append(", srcParent=" + mSrcParent)
    104                 .append(", location=" + stack)
    105                 .append("}")
    106                 .toString();
    107     }
    108 }
    109