1 /*
2  * Copyright (C) 2008 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.music;
18 
19 import android.app.Activity;
20 import android.content.ContentResolver;
21 import android.content.ContentValues;
22 import android.database.Cursor;
23 import android.media.AudioManager;
24 import android.os.Bundle;
25 import android.provider.MediaStore;
26 import android.text.Editable;
27 import android.text.TextWatcher;
28 import android.util.Log;
29 import android.view.View;
30 import android.view.Window;
31 import android.view.WindowManager;
32 import android.widget.Button;
33 import android.widget.EditText;
34 import android.widget.TextView;
35 import android.widget.Toast;
36 
37 public class RenamePlaylist extends Activity
38 {
39     private EditText mPlaylist;
40     private TextView mPrompt;
41     private Button mSaveButton;
42     private long mRenameId;
43     private String mOriginalName;
44 
45     @Override
onCreate(Bundle icicle)46     public void onCreate(Bundle icicle) {
47         super.onCreate(icicle);
48         setVolumeControlStream(AudioManager.STREAM_MUSIC);
49 
50         requestWindowFeature(Window.FEATURE_NO_TITLE);
51         setContentView(R.layout.create_playlist);
52         getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT,
53                                     WindowManager.LayoutParams.WRAP_CONTENT);
54 
55         mPrompt = (TextView)findViewById(R.id.prompt);
56         mPlaylist = (EditText)findViewById(R.id.playlist);
57         mSaveButton = (Button) findViewById(R.id.create);
58         mSaveButton.setOnClickListener(mOpenClicked);
59 
60         ((Button)findViewById(R.id.cancel)).setOnClickListener(new View.OnClickListener() {
61             public void onClick(View v) {
62                 finish();
63             }
64         });
65 
66         mRenameId = icicle != null ? icicle.getLong("rename")
67                 : getIntent().getLongExtra("rename", -1);
68         mOriginalName = nameForId(mRenameId);
69         String defaultname = icicle != null ? icicle.getString("defaultname") : mOriginalName;
70 
71         if (mRenameId < 0 || mOriginalName == null || defaultname == null) {
72             Log.i("@@@@", "Rename failed: " + mRenameId + "/" + defaultname);
73             finish();
74             return;
75         }
76 
77         String promptformat;
78         if (mOriginalName.equals(defaultname)) {
79             promptformat = getString(R.string.rename_playlist_same_prompt);
80         } else {
81             promptformat = getString(R.string.rename_playlist_diff_prompt);
82         }
83 
84         String prompt = String.format(promptformat, mOriginalName, defaultname);
85         mPrompt.setText(prompt);
86         mPlaylist.setText(defaultname);
87         mPlaylist.setSelection(defaultname.length());
88         mPlaylist.addTextChangedListener(mTextWatcher);
89         setSaveButton();
90     }
91 
92     TextWatcher mTextWatcher = new TextWatcher() {
93         public void beforeTextChanged(CharSequence s, int start, int count, int after) {
94             // don't care about this one
95         }
96         public void onTextChanged(CharSequence s, int start, int before, int count) {
97             // check if playlist with current name exists already, and warn the user if so.
98             setSaveButton();
99         };
100         public void afterTextChanged(Editable s) {
101             // don't care about this one
102         }
103     };
104 
setSaveButton()105     private void setSaveButton() {
106         String typedname = mPlaylist.getText().toString();
107         if (typedname.trim().length() == 0) {
108             mSaveButton.setEnabled(false);
109         } else {
110             mSaveButton.setEnabled(true);
111             if (idForplaylist(typedname) >= 0
112                     && ! mOriginalName.equals(typedname)) {
113                 mSaveButton.setText(R.string.create_playlist_overwrite_text);
114             } else {
115                 mSaveButton.setText(R.string.create_playlist_create_text);
116             }
117         }
118 
119     }
120 
idForplaylist(String name)121     private int idForplaylist(String name) {
122         Cursor c = MusicUtils.query(this, MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI,
123                 new String[] { MediaStore.Audio.Playlists._ID },
124                 MediaStore.Audio.Playlists.NAME + "=?",
125                 new String[] { name },
126                 MediaStore.Audio.Playlists.NAME);
127         int id = -1;
128         if (c != null) {
129             c.moveToFirst();
130             if (!c.isAfterLast()) {
131                 id = c.getInt(0);
132             }
133         }
134         c.close();
135         return id;
136     }
137 
nameForId(long id)138     private String nameForId(long id) {
139         Cursor c = MusicUtils.query(this, MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI,
140                 new String[] { MediaStore.Audio.Playlists.NAME },
141                 MediaStore.Audio.Playlists._ID + "=?",
142                 new String[] { Long.valueOf(id).toString() },
143                 MediaStore.Audio.Playlists.NAME);
144         String name = null;
145         if (c != null) {
146             c.moveToFirst();
147             if (!c.isAfterLast()) {
148                 name = c.getString(0);
149             }
150         }
151         c.close();
152         return name;
153     }
154 
155 
156     @Override
onSaveInstanceState(Bundle outcicle)157     public void onSaveInstanceState(Bundle outcicle) {
158         outcicle.putString("defaultname", mPlaylist.getText().toString());
159         outcicle.putLong("rename", mRenameId);
160     }
161 
162     @Override
onResume()163     public void onResume() {
164         super.onResume();
165     }
166 
167     private View.OnClickListener mOpenClicked = new View.OnClickListener() {
168         public void onClick(View v) {
169             String name = mPlaylist.getText().toString();
170             if (name != null && name.length() > 0) {
171                 ContentResolver resolver = getContentResolver();
172                 ContentValues values = new ContentValues(1);
173                 values.put(MediaStore.Audio.Playlists.NAME, name);
174                 resolver.update(MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI,
175                         values,
176                         MediaStore.Audio.Playlists._ID + "=?",
177                         new String[] { Long.valueOf(mRenameId).toString()});
178 
179                 setResult(RESULT_OK);
180                 Toast.makeText(RenamePlaylist.this, R.string.playlist_renamed_message, Toast.LENGTH_SHORT).show();
181                 finish();
182             }
183         }
184     };
185 }
186