1 /*
2  * Copyright (C) 2013 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;
18 
19 import static android.content.ContentResolver.wrap;
20 
21 import static com.android.documentsui.base.SharedMinimal.TAG;
22 
23 import android.app.Dialog;
24 import android.content.ContentProviderClient;
25 import android.content.ContentResolver;
26 import android.content.Context;
27 import android.content.DialogInterface;
28 import android.content.DialogInterface.OnClickListener;
29 import android.net.Uri;
30 import android.os.AsyncTask;
31 import android.os.Bundle;
32 import android.os.FileUtils;
33 import android.provider.DocumentsContract;
34 import android.provider.DocumentsContract.Document;
35 import android.util.Log;
36 import android.view.KeyEvent;
37 import android.view.LayoutInflater;
38 import android.view.View;
39 import android.view.inputmethod.EditorInfo;
40 import android.widget.EditText;
41 import android.widget.TextView;
42 import android.widget.TextView.OnEditorActionListener;
43 
44 import androidx.annotation.Nullable;
45 import androidx.appcompat.app.AlertDialog;
46 import androidx.fragment.app.DialogFragment;
47 import androidx.fragment.app.FragmentManager;
48 
49 import com.android.documentsui.base.DocumentInfo;
50 import com.android.documentsui.base.Shared;
51 import com.android.documentsui.ui.Snackbars;
52 
53 import com.google.android.material.dialog.MaterialAlertDialogBuilder;
54 import com.google.android.material.snackbar.Snackbar;
55 import com.google.android.material.textfield.TextInputLayout;
56 
57 /**
58  * Dialog to create a new directory.
59  */
60 public class CreateDirectoryFragment extends DialogFragment {
61     private static final String TAG_CREATE_DIRECTORY = "create_directory";
62 
show(FragmentManager fm)63     public static void show(FragmentManager fm) {
64         final CreateDirectoryFragment dialog = new CreateDirectoryFragment();
65         dialog.show(fm, TAG_CREATE_DIRECTORY);
66     }
67 
68     @Override
onCreateDialog(Bundle savedInstanceState)69     public Dialog onCreateDialog(Bundle savedInstanceState) {
70         final Context context = getActivity();
71 
72         final MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(context);
73         final LayoutInflater dialogInflater = LayoutInflater.from(builder.getContext());
74 
75         final View view = dialogInflater.inflate(R.layout.dialog_file_name, null, false);
76         final EditText editText = (EditText) view.findViewById(android.R.id.text1);
77 
78         final TextInputLayout inputWrapper = view.findViewById(R.id.input_wrapper);
79         inputWrapper.setHint(getString(R.string.input_hint_new_folder));
80 
81         builder.setTitle(R.string.menu_create_dir);
82         builder.setView(view);
83 
84         builder.setPositiveButton(
85                 android.R.string.ok,
86                 new OnClickListener() {
87                     @Override
88                     public void onClick(DialogInterface dialog, int which) {
89                         createDirectory(editText.getText().toString());
90                     }
91                 });
92 
93         builder.setNegativeButton(android.R.string.cancel, null);
94         final AlertDialog dialog = builder.create();
95 
96         // Workaround for the problem - virtual keyboard doesn't show on the phone.
97         Shared.ensureKeyboardPresent(context, dialog);
98 
99         editText.setOnEditorActionListener(
100                 new OnEditorActionListener() {
101                     @Override
102                     public boolean onEditorAction(
103                             TextView view, int actionId, @Nullable KeyEvent event) {
104                         if ((actionId == EditorInfo.IME_ACTION_DONE) || (event != null
105                                 && event.getKeyCode() == KeyEvent.KEYCODE_ENTER
106                                 && event.hasNoModifiers())) {
107                             createDirectory(editText.getText().toString());
108                             dialog.dismiss();
109                             return true;
110                         }
111                         return false;
112                     }
113                 });
114         editText.requestFocus();
115 
116         return dialog;
117     }
118 
createDirectory(String name)119     private void createDirectory(String name) {
120         final BaseActivity activity = (BaseActivity) getActivity();
121         final DocumentInfo cwd = activity.getCurrentDirectory();
122 
123         new CreateDirectoryTask(activity, cwd, name).executeOnExecutor(
124                 ProviderExecutor.forAuthority(cwd.authority));
125     }
126 
127     private class CreateDirectoryTask extends AsyncTask<Void, Void, DocumentInfo> {
128         private final BaseActivity mActivity;
129         private final DocumentInfo mCwd;
130         private final String mDisplayName;
131 
CreateDirectoryTask( BaseActivity activity, DocumentInfo cwd, String displayName)132         public CreateDirectoryTask(
133                 BaseActivity activity, DocumentInfo cwd, String displayName) {
134             mActivity = activity;
135             mCwd = cwd;
136             mDisplayName = displayName;
137         }
138 
139         @Override
onPreExecute()140         protected void onPreExecute() {
141             mActivity.setPending(true);
142         }
143 
144         @Override
doInBackground(Void... params)145         protected DocumentInfo doInBackground(Void... params) {
146             final ContentResolver resolver = mActivity.getContentResolver();
147             ContentProviderClient client = null;
148             try {
149                 client = DocumentsApplication.acquireUnstableProviderOrThrow(
150                         resolver, mCwd.derivedUri.getAuthority());
151                 final Uri childUri = DocumentsContract.createDocument(
152                         wrap(client), mCwd.derivedUri, Document.MIME_TYPE_DIR, mDisplayName);
153                 DocumentInfo doc = DocumentInfo.fromUri(resolver, childUri);
154                 return doc.isDirectory() ? doc : null;
155             } catch (Exception e) {
156                 Log.w(TAG, "Failed to create directory", e);
157                 return null;
158             } finally {
159                 FileUtils.closeQuietly(client);
160             }
161         }
162 
163         @Override
onPostExecute(DocumentInfo result)164         protected void onPostExecute(DocumentInfo result) {
165             if (result != null) {
166                 // Navigate into newly created child
167                 mActivity.onDirectoryCreated(result);
168                 Metrics.logCreateDirOperation();
169             } else {
170                 Snackbars.makeSnackbar(mActivity, R.string.create_error, Snackbar.LENGTH_SHORT)
171                         .show();
172                 Metrics.logCreateDirError();
173             }
174             mActivity.setPending(false);
175         }
176     }
177 }
178