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
17package com.android.documentsui;
18
19import static com.android.documentsui.Shared.TAG;
20
21import android.app.AlertDialog;
22import android.app.Dialog;
23import android.app.DialogFragment;
24import android.app.FragmentManager;
25import android.content.ContentProviderClient;
26import android.content.ContentResolver;
27import android.content.Context;
28import android.content.DialogInterface;
29import android.content.DialogInterface.OnClickListener;
30import android.net.Uri;
31import android.os.AsyncTask;
32import android.os.Bundle;
33import android.provider.DocumentsContract;
34import android.provider.DocumentsContract.Document;
35import android.support.annotation.Nullable;
36import android.support.design.widget.Snackbar;
37import android.util.Log;
38import android.view.KeyEvent;
39import android.view.inputmethod.EditorInfo;
40import android.view.LayoutInflater;
41import android.view.View;
42import android.widget.EditText;
43import android.widget.TextView;
44import android.widget.TextView.OnEditorActionListener;
45
46import com.android.documentsui.model.DocumentInfo;
47
48/**
49 * Dialog to create a new directory.
50 */
51public class CreateDirectoryFragment extends DialogFragment {
52    private static final String TAG_CREATE_DIRECTORY = "create_directory";
53
54    public static void show(FragmentManager fm) {
55        final CreateDirectoryFragment dialog = new CreateDirectoryFragment();
56        dialog.show(fm, TAG_CREATE_DIRECTORY);
57    }
58
59    @Override
60    public Dialog onCreateDialog(Bundle savedInstanceState) {
61        final Context context = getActivity();
62        final ContentResolver resolver = context.getContentResolver();
63
64        final AlertDialog.Builder builder = new AlertDialog.Builder(context);
65        final LayoutInflater dialogInflater = LayoutInflater.from(builder.getContext());
66
67        final View view = dialogInflater.inflate(R.layout.dialog_file_name, null, false);
68        final EditText editText = (EditText) view.findViewById(android.R.id.text1);
69
70        builder.setTitle(R.string.menu_create_dir);
71        builder.setView(view);
72
73        builder.setPositiveButton(
74                android.R.string.ok,
75                new OnClickListener() {
76                    @Override
77                    public void onClick(DialogInterface dialog, int which) {
78                        createDirectory(editText.getText().toString());
79                    }
80                });
81
82        builder.setNegativeButton(android.R.string.cancel, null);
83        final AlertDialog dialog = builder.create();
84
85        // Workaround for the problem - virtual keyboard doesn't show on the phone.
86        Shared.ensureKeyboardPresent(context, dialog);
87
88        editText.setOnEditorActionListener(
89                new OnEditorActionListener() {
90                    @Override
91                    public boolean onEditorAction(
92                            TextView view, int actionId, @Nullable KeyEvent event) {
93                        if ((actionId == EditorInfo.IME_ACTION_DONE) || (event != null
94                                && event.getKeyCode() == KeyEvent.KEYCODE_ENTER
95                                && event.hasNoModifiers())) {
96                            createDirectory(editText.getText().toString());
97                            dialog.dismiss();
98                            return true;
99                        }
100                        return false;
101                    }
102                });
103
104
105        return dialog;
106    }
107
108    private void createDirectory(String name) {
109        final BaseActivity activity = (BaseActivity) getActivity();
110        final DocumentInfo cwd = activity.getCurrentDirectory();
111
112        new CreateDirectoryTask(activity, cwd, name).executeOnExecutor(
113                ProviderExecutor.forAuthority(cwd.authority));
114    }
115
116    private class CreateDirectoryTask extends AsyncTask<Void, Void, DocumentInfo> {
117        private final BaseActivity mActivity;
118        private final DocumentInfo mCwd;
119        private final String mDisplayName;
120
121        public CreateDirectoryTask(
122                BaseActivity activity, DocumentInfo cwd, String displayName) {
123            mActivity = activity;
124            mCwd = cwd;
125            mDisplayName = displayName;
126        }
127
128        @Override
129        protected void onPreExecute() {
130            mActivity.setPending(true);
131        }
132
133        @Override
134        protected DocumentInfo doInBackground(Void... params) {
135            final ContentResolver resolver = mActivity.getContentResolver();
136            ContentProviderClient client = null;
137            try {
138                client = DocumentsApplication.acquireUnstableProviderOrThrow(
139                        resolver, mCwd.derivedUri.getAuthority());
140                final Uri childUri = DocumentsContract.createDocument(
141                        client, mCwd.derivedUri, Document.MIME_TYPE_DIR, mDisplayName);
142                return DocumentInfo.fromUri(resolver, childUri);
143            } catch (Exception e) {
144                Log.w(TAG, "Failed to create directory", e);
145                return null;
146            } finally {
147                ContentProviderClient.releaseQuietly(client);
148            }
149        }
150
151        @Override
152        protected void onPostExecute(DocumentInfo result) {
153            if (result != null) {
154                // Navigate into newly created child
155                mActivity.onDirectoryCreated(result);
156                Metrics.logCreateDirOperation(getContext());
157            } else {
158                Snackbars.makeSnackbar(mActivity, R.string.create_error, Snackbar.LENGTH_SHORT)
159                        .show();
160                Metrics.logCreateDirError(getContext());
161            }
162            mActivity.setPending(false);
163        }
164    }
165}
166