pl.edu.pw.eiti.groupbuying.android.ConfirmPaymentActivity.java Source code

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Here is the source code for pl.edu.pw.eiti.groupbuying.android.ConfirmPaymentActivity.java

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/*******************************************************************************
 * Copyright (c) 2013 Piotr Zawadzki.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Piotr Zawadzki - initial API and implementation
 ******************************************************************************/
package pl.edu.pw.eiti.groupbuying.android;

import pl.edu.pw.eiti.groupbuying.android.api.GroupBuyingApi;
import pl.edu.pw.eiti.groupbuying.android.api.Offer;
import pl.edu.pw.eiti.groupbuying.android.fragment.PayPalPaymentFragment;
import pl.edu.pw.eiti.groupbuying.android.fragment.PaymentSummaryFragment;
import pl.edu.pw.eiti.groupbuying.android.fragment.SignInFragment;
import pl.edu.pw.eiti.groupbuying.android.fragment.util.SignInListener;
import android.content.Intent;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.util.Log;

import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuItem;

public class ConfirmPaymentActivity extends AbstractGroupBuyingActivity implements SignInListener {

    public static final int SUMMARY = 0;
    public static final int PAYPAL_PAYMENT = 1;
    public static final int SIGN_IN = 2;
    private static final int FRAGMENT_COUNT = SIGN_IN + 1;
    private static final String FRAGMENT_PREFIX = "fragment";
    private Fragment[] fragments = new Fragment[FRAGMENT_COUNT];

    protected static final String TAG = ConfirmPaymentActivity.class.getSimpleName();

    private boolean restoredFragment = false;

    private Offer offer;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_confirm_payment);

        if (getIntent().getSerializableExtra("offer") != null) {
            offer = (Offer) getIntent().getSerializableExtra("offer");
        } else {
            finish();
        }

        for (int i = 0; i < fragments.length; i++) {
            restoreFragment(savedInstanceState, i);
        }
    }

    @Override
    public void onStart() {
        super.onStart();
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        FragmentManager manager = getSupportFragmentManager();
        // Since we're only adding one Fragment at a time, we can only save one.
        Fragment f = manager.findFragmentById(R.id.fragment_content);
        for (int i = 0; i < fragments.length; i++) {
            if (fragments[i] == f) {
                manager.putFragment(outState, getBundleKey(i), fragments[i]);
                break;
            }
        }
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
    }

    @Override
    protected void onResumeFragments() {
        super.onResumeFragments();
        if (restoredFragment) {
            return;
        }
        FragmentManager manager = getSupportFragmentManager();
        if (manager.getBackStackEntryCount() == 0) {
            showFragment(SUMMARY, false);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getSupportMenuInflater().inflate(R.menu.payment_method_menu, menu);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        Intent intent = null;
        switch (item.getItemId()) {
        case android.R.id.home:
            onBackPressed();
            break;
        case R.id.options_menu_offers:
            intent = new Intent(this, MainMenuActivity.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            startActivity(intent);
            break;
        default:
            return super.onOptionsItemSelected(item);
        }
        return true;
    }

    private void restoreFragment(Bundle savedInstanceState, int fragmentIndex) {
        Fragment fragment = null;
        if (savedInstanceState != null) {
            FragmentManager manager = getSupportFragmentManager();
            fragment = manager.getFragment(savedInstanceState, getBundleKey(fragmentIndex));
        }
        if (fragment != null) {
            fragments[fragmentIndex] = fragment;
            restoredFragment = true;
        } else {
            switch (fragmentIndex) {
            case SUMMARY:
                fragments[SUMMARY] = PaymentSummaryFragment.newInstance(offer);
                break;
            case PAYPAL_PAYMENT:
                fragments[PAYPAL_PAYMENT] = PayPalPaymentFragment.newInstance(offer);
                break;
            case SIGN_IN:
                fragments[SIGN_IN] = SignInFragment.newInstance();
                break;
            default:
                Log.w(TAG, "ConfirmPaymentActivity: invalid fragment index: " + fragmentIndex);
                break;
            }
        }
    }

    public void showFragment(int fragmentNo, boolean addToBackStack) {
        FragmentManager manager = getSupportFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        transaction.replace(R.id.fragment_content, fragments[fragmentNo]);
        if (addToBackStack) {
            transaction.addToBackStack(null);
        }
        transaction.commit();
    }

    private String getBundleKey(int index) {
        return FRAGMENT_PREFIX + Integer.toString(index);
    }

    public boolean isConnected() {
        return getApplicationContext().getConnectionRepository()
                .findPrimaryConnection(GroupBuyingApi.class) != null;
    }

    @Override
    public void onSignInSuccessful() {
        FragmentManager manager = getSupportFragmentManager();
        manager.popBackStackImmediate();
        showFragment(PAYPAL_PAYMENT, true);
    }

    @Override
    public void onSignInCancelled() {
        FragmentManager manager = getSupportFragmentManager();
        manager.popBackStackImmediate();
        showFragment(SUMMARY, false);
    }

}