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      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.documentsui.picker;
     18 
     19 import android.app.Activity;
     20 import android.content.ContentProviderClient;
     21 import android.content.ContentResolver;
     22 import android.net.Uri;
     23 import android.provider.DocumentsContract;
     24 import android.support.design.widget.Snackbar;
     25 import android.util.Log;
     26 
     27 import com.android.documentsui.DocumentsAccess;
     28 import com.android.documentsui.DocumentsApplication;
     29 import com.android.documentsui.R;
     30 import com.android.documentsui.base.BooleanConsumer;
     31 import com.android.documentsui.base.DocumentInfo;
     32 import com.android.documentsui.base.DocumentStack;
     33 import com.android.documentsui.base.PairedTask;
     34 import com.android.documentsui.ui.Snackbars;
     35 
     36 import java.util.function.Consumer;
     37 
     38 /**
     39  * Task that creates a new document in the background.
     40  */
     41 class CreatePickedDocumentTask extends PairedTask<Activity, Void, Uri> {
     42     private final LastAccessedStorage mLastAccessed;
     43     private final DocumentsAccess mDocs;
     44     private final DocumentStack mStack;
     45     private final String mMimeType;
     46     private final String mDisplayName;
     47     private final BooleanConsumer mInProgressStateListener;
     48     private final Consumer<Uri> mCallback;
     49 
     50     CreatePickedDocumentTask(
     51             Activity activity,
     52             DocumentsAccess docs,
     53             LastAccessedStorage lastAccessed,
     54             DocumentStack stack,
     55             String mimeType,
     56             String displayName,
     57             BooleanConsumer inProgressStateListener,
     58             Consumer<Uri> callback) {
     59         super(activity);
     60         mLastAccessed = lastAccessed;
     61         mDocs = docs;
     62         mStack = stack;
     63         mMimeType = mimeType;
     64         mDisplayName = displayName;
     65         mInProgressStateListener = inProgressStateListener;
     66         mCallback = callback;
     67     }
     68 
     69     @Override
     70     protected void prepare() {
     71         mInProgressStateListener.accept(true);
     72     }
     73 
     74     @Override
     75     protected Uri run(Void... params) {
     76         DocumentInfo cwd = mStack.peek();
     77 
     78         Uri childUri = mDocs.createDocument(cwd, mMimeType, mDisplayName);
     79 
     80         if (childUri != null) {
     81             mLastAccessed.setLastAccessed(mOwner, mStack);
     82         }
     83 
     84         return childUri;
     85     }
     86 
     87     @Override
     88     protected void finish(Uri result) {
     89         if (result != null) {
     90             mCallback.accept(result);
     91         } else {
     92             Snackbars.makeSnackbar(
     93                     mOwner, R.string.save_error, Snackbar.LENGTH_SHORT).show();
     94         }
     95 
     96         mInProgressStateListener.accept(false);
     97     }
     98 }
     99