/*
 * Copyright (C) 2011 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.settings.nfc;

import android.app.Fragment;
import android.nfc.NfcAdapter;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Switch;
import com.android.settings.R;
import com.android.settings.SettingsActivity;
import com.android.settings.widget.SwitchBar;

public class AndroidBeam extends Fragment
        implements SwitchBar.OnSwitchChangeListener {
    private View mView;
    private NfcAdapter mNfcAdapter;
    private SwitchBar mSwitchBar;
    private Switch mSwitch;
    private CharSequence mOldActivityTitle;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        SettingsActivity activity = (SettingsActivity) getActivity();

        mOldActivityTitle = activity.getActionBar().getTitle();
        activity.getActionBar().setTitle(R.string.android_beam_settings_title);

        mNfcAdapter = NfcAdapter.getDefaultAdapter(getActivity());

        mSwitchBar = activity.getSwitchBar();
        mSwitch = mSwitchBar.getSwitch();
        mSwitch.setChecked(mNfcAdapter.isNdefPushEnabled());
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        mView = inflater.inflate(R.layout.android_beam, container, false);

        mSwitchBar.addOnSwitchChangeListener(this);
        mSwitchBar.show();
        mSwitch.setChecked(mNfcAdapter.isNdefPushEnabled());

        return mView;
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        mSwitchBar.removeOnSwitchChangeListener(this);
        mSwitchBar.hide();
        if (mOldActivityTitle != null) {
            getActivity().getActionBar().setTitle(mOldActivityTitle);
        }
    }

    @Override
    public void onSwitchChanged(Switch switchView, boolean desiredState) {
        boolean success = false;
        mSwitch.setEnabled(false);
        if (desiredState) {
            success = mNfcAdapter.enableNdefPush();
        } else {
            success = mNfcAdapter.disableNdefPush();
        }
        if (success) {
            mSwitch.setChecked(desiredState);
        }
        mSwitch.setEnabled(true);
    }
}