/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.music;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Intent;
import android.database.Cursor;
import android.media.AudioManager;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class CreatePlaylist extends Activity
{
private EditText mPlaylist;
private TextView mPrompt;
private Button mSaveButton;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setVolumeControlStream(AudioManager.STREAM_MUSIC);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.create_playlist);
getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.WRAP_CONTENT);
mPrompt = (TextView)findViewById(R.id.prompt);
mPlaylist = (EditText)findViewById(R.id.playlist);
mSaveButton = (Button) findViewById(R.id.create);
mSaveButton.setOnClickListener(mOpenClicked);
((Button)findViewById(R.id.cancel)).setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
finish();
}
});
String defaultname = icicle != null ? icicle.getString("defaultname") : makePlaylistName();
if (defaultname == null) {
finish();
return;
}
String promptformat = getString(R.string.create_playlist_create_text_prompt);
String prompt = String.format(promptformat, defaultname);
mPrompt.setText(prompt);
mPlaylist.setText(defaultname);
mPlaylist.setSelection(defaultname.length());
mPlaylist.addTextChangedListener(mTextWatcher);
}
TextWatcher mTextWatcher = new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// don't care about this one
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
String newText = mPlaylist.getText().toString();
if (newText.trim().length() == 0) {
mSaveButton.setEnabled(false);
} else {
mSaveButton.setEnabled(true);
// check if playlist with current name exists already, and warn the user if so.
if (idForplaylist(newText) >= 0) {
mSaveButton.setText(R.string.create_playlist_overwrite_text);
} else {
mSaveButton.setText(R.string.create_playlist_create_text);
}
}
};
public void afterTextChanged(Editable s) {
// don't care about this one
}
};
private int idForplaylist(String name) {
Cursor c = MusicUtils.query(this, MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI,
new String[] { MediaStore.Audio.Playlists._ID },
MediaStore.Audio.Playlists.NAME + "=?",
new String[] { name },
MediaStore.Audio.Playlists.NAME);
int id = -1;
if (c != null) {
c.moveToFirst();
if (!c.isAfterLast()) {
id = c.getInt(0);
}
c.close();
}
return id;
}
@Override
public void onSaveInstanceState(Bundle outcicle) {
outcicle.putString("defaultname", mPlaylist.getText().toString());
}
@Override
public void onResume() {
super.onResume();
}
private String makePlaylistName() {
String template = getString(R.string.new_playlist_name_template);
int num = 1;
String[] cols = new String[] {
MediaStore.Audio.Playlists.NAME
};
ContentResolver resolver = getContentResolver();
String whereclause = MediaStore.Audio.Playlists.NAME + " != ''";
Cursor c = resolver.query(MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI,
cols, whereclause, null,
MediaStore.Audio.Playlists.NAME);
if (c == null) {
return null;
}
String suggestedname;
suggestedname = String.format(template, num++);
// Need to loop until we've made 1 full pass through without finding a match.
// Looping more than once shouldn't happen very often, but will happen if
// you have playlists named "New Playlist 1"/10/2/3/4/5/6/7/8/9, where
// making only one pass would result in "New Playlist 10" being erroneously
// picked for the new name.
boolean done = false;
while (!done) {
done = true;
c.moveToFirst();
while (! c.isAfterLast()) {
String playlistname = c.getString(0);
if (playlistname.compareToIgnoreCase(suggestedname) == 0) {
suggestedname = String.format(template, num++);
done = false;
}
c.moveToNext();
}
}
c.close();
return suggestedname;
}
private View.OnClickListener mOpenClicked = new View.OnClickListener() {
public void onClick(View v) {
String name = mPlaylist.getText().toString();
if (name != null && name.length() > 0) {
ContentResolver resolver = getContentResolver();
int id = idForplaylist(name);
Uri uri;
if (id >= 0) {
uri = ContentUris.withAppendedId(MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI, id);
MusicUtils.clearPlaylist(CreatePlaylist.this, id);
} else {
ContentValues values = new ContentValues(1);
values.put(MediaStore.Audio.Playlists.NAME, name);
uri = resolver.insert(MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI, values);
}
setResult(RESULT_OK, (new Intent()).setData(uri));
finish();
}
}
};
}