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