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/*
* Copyright (C) 2012 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.dreams.phototable;
import android.app.ListActivity;
import android.content.SharedPreferences;
import android.database.DataSetObserver;
import android.os.AsyncTask;
import android.os.AsyncTask.Status;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import java.util.LinkedList;
/**
* Settings panel for photo flipping dream.
*/
public class FlipperDreamSettings extends ListActivity {
@SuppressWarnings("unused")
private static final String TAG = "FlipperDreamSettings";
public static final String PREFS_NAME = FlipperDream.TAG;
protected SharedPreferences mSettings;
private PhotoSourcePlexor mPhotoSource;
private SectionedAlbumDataAdapter mAdapter;
private MenuItem mSelectAll;
private AsyncTask<Void, Void, Void> mLoadingTask;
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
mSettings = getSharedPreferences(PREFS_NAME, 0);
init();
}
@Override
protected void onResume(){
super.onResume();
init();
}
protected void init() {
mPhotoSource = new PhotoSourcePlexor(this, mSettings);
setContentView(R.layout.settingslist);
if (mLoadingTask != null && mLoadingTask.getStatus() != Status.FINISHED) {
mLoadingTask.cancel(true);
}
showApology(false);
mLoadingTask = new AsyncTask<Void, Void, Void>() {
@Override
public Void doInBackground(Void... unused) {
mAdapter = new SectionedAlbumDataAdapter(FlipperDreamSettings.this,
mSettings,
R.layout.header,
R.layout.album,
new LinkedList<PhotoSource.AlbumData>(mPhotoSource.findAlbums()));
return null;
}
@Override
public void onPostExecute(Void unused) {
mAdapter.registerDataSetObserver(new DataSetObserver () {
@Override
public void onChanged() {
updateActionItem();
}
@Override
public void onInvalidated() {
updateActionItem();
}
});
setListAdapter(mAdapter);
getListView().setItemsCanFocus(true);
updateActionItem();
showApology(mAdapter.getCount() == 0);
}
};
mLoadingTask.execute();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.photodream_settings_menu, menu);
mSelectAll = menu.findItem(R.id.photodream_menu_all);
updateActionItem();
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.photodream_menu_all:
if (mAdapter != null) {
mAdapter.selectAll(!mAdapter.areAllSelected());
}
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void showApology(boolean apologize) {
View empty = findViewById(R.id.spinner);
View sorry = findViewById(R.id.sorry);
if (empty != null && sorry != null) {
empty.setVisibility(apologize ? View.GONE : View.VISIBLE);
sorry.setVisibility(apologize ? View.VISIBLE : View.GONE);
}
}
private void updateActionItem() {
if (mAdapter != null && mSelectAll != null) {
if (mAdapter.areAllSelected()) {
mSelectAll.setTitle(R.string.photodream_select_none);
} else {
mSelectAll.setTitle(R.string.photodream_select_all);
}
}
}
}
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