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.DocumentsActivity.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.util.Log;
36import android.view.LayoutInflater;
37import android.view.View;
38import android.widget.EditText;
39import android.widget.Toast;
40
41import com.android.documentsui.model.DocumentInfo;
42
43/**
44 * Dialog to create a new directory.
45 */
46public class CreateDirectoryFragment extends DialogFragment {
47    private static final String TAG_CREATE_DIRECTORY = "create_directory";
48
49    public static void show(FragmentManager fm) {
50        final CreateDirectoryFragment dialog = new CreateDirectoryFragment();
51        dialog.show(fm, TAG_CREATE_DIRECTORY);
52    }
53
54    @Override
55    public Dialog onCreateDialog(Bundle savedInstanceState) {
56        final Context context = getActivity();
57        final ContentResolver resolver = context.getContentResolver();
58
59        final AlertDialog.Builder builder = new AlertDialog.Builder(context);
60        final LayoutInflater dialogInflater = LayoutInflater.from(builder.getContext());
61
62        final View view = dialogInflater.inflate(R.layout.dialog_create_dir, null, false);
63        final EditText text1 = (EditText) view.findViewById(android.R.id.text1);
64
65        builder.setTitle(R.string.menu_create_dir);
66        builder.setView(view);
67
68        builder.setPositiveButton(android.R.string.ok, new OnClickListener() {
69            @Override
70            public void onClick(DialogInterface dialog, int which) {
71                final String displayName = text1.getText().toString();
72
73                final DocumentsActivity activity = (DocumentsActivity) getActivity();
74                final DocumentInfo cwd = activity.getCurrentDirectory();
75
76                new CreateDirectoryTask(activity, cwd, displayName).executeOnExecutor(
77                        ProviderExecutor.forAuthority(cwd.authority));
78            }
79        });
80        builder.setNegativeButton(android.R.string.cancel, null);
81
82        return builder.create();
83    }
84
85    private class CreateDirectoryTask extends AsyncTask<Void, Void, DocumentInfo> {
86        private final DocumentsActivity mActivity;
87        private final DocumentInfo mCwd;
88        private final String mDisplayName;
89
90        public CreateDirectoryTask(
91                DocumentsActivity activity, DocumentInfo cwd, String displayName) {
92            mActivity = activity;
93            mCwd = cwd;
94            mDisplayName = displayName;
95        }
96
97        @Override
98        protected void onPreExecute() {
99            mActivity.setPending(true);
100        }
101
102        @Override
103        protected DocumentInfo doInBackground(Void... params) {
104            final ContentResolver resolver = mActivity.getContentResolver();
105            ContentProviderClient client = null;
106            try {
107                client = DocumentsApplication.acquireUnstableProviderOrThrow(
108                        resolver, mCwd.derivedUri.getAuthority());
109                final Uri childUri = DocumentsContract.createDocument(
110                        client, mCwd.derivedUri, Document.MIME_TYPE_DIR, mDisplayName);
111                return DocumentInfo.fromUri(resolver, childUri);
112            } catch (Exception e) {
113                Log.w(TAG, "Failed to create directory", e);
114                return null;
115            } finally {
116                ContentProviderClient.releaseQuietly(client);
117            }
118        }
119
120        @Override
121        protected void onPostExecute(DocumentInfo result) {
122            if (result != null) {
123                // Navigate into newly created child
124                mActivity.onDocumentPicked(result);
125            } else {
126                Toast.makeText(mActivity, R.string.create_error, Toast.LENGTH_SHORT).show();
127            }
128
129            mActivity.setPending(false);
130        }
131    }
132}
133