/*
* Copyright (C) 2014 Vlad Mihalachi
*
* This file is part of Turbo Editor.
*
* Turbo Editor is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Turbo Editor is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package eu.se_bastiaan.popcorntimeremote.iab;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.text.Html;
import android.text.method.LinkMovementMethod;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import java.util.HashSet;
import eu.se_bastiaan.popcorntimeremote.BuildConfig;
import eu.se_bastiaan.popcorntimeremote.Constants;
import eu.se_bastiaan.popcorntimeremote.R;
import eu.se_bastiaan.popcorntimeremote.iab.utils.IabHelper;
import eu.se_bastiaan.popcorntimeremote.iab.utils.IabResult;
import eu.se_bastiaan.popcorntimeremote.iab.utils.Inventory;
import eu.se_bastiaan.popcorntimeremote.iab.utils.Purchase;
import eu.se_bastiaan.popcorntimeremote.utils.LogUtils;
/**
* Fragment that represents an ability to donate to me. Be sure to redirect
* {@link android.app.Activity#onActivityResult(int, int, android.content.Intent)}
* to this fragment!
*
* @author Artem Chepurnoy
*/
public class DonationFragment extends DialogFragment {
public static final String TAG_FRAGMENT_DONATION = "dialog_donate";
public static final int RC_REQUEST = 10001;
private static final String TAG = "DonationFragment";
private final HashSet<String> mInventorySet = new HashSet<>();
private GridView mGridView;
private ProgressBar mProgressBar;
private TextView mError;
private IabHelper mHelper;
private final IabHelper.OnIabPurchaseFinishedListener mPurchaseFinishedListener =
new IabHelper.OnIabPurchaseFinishedListener() {
public void onIabPurchaseFinished(IabResult result, Purchase purchase) {
if (mHelper == null) return;
if (result.isFailure()) {
complain("Error purchasing: " + result);
setWaitScreen(false);
return;
}
if (!verifyDeveloperPayload(purchase)) {
complain("Error purchasing. Authenticity verification failed.");
setWaitScreen(false);
return;
}
// else, it is a success, the user has donated!
String sku = purchase.getSku();
mInventorySet.add(sku);
}
};
private Donation[] mDonationList;
private final IabHelper.QueryInventoryFinishedListener mGotInventoryListener =
new IabHelper.QueryInventoryFinishedListener() {
public void onQueryInventoryFinished(IabResult result, Inventory inventory) {
if (mHelper == null) return;
if (result.isFailure()) {
complain("Failed to query inventory: " + result);
return;
}
mInventorySet.clear();
for (Donation donation : mDonationList) {
Purchase purchase = inventory.getPurchase(donation.sku);
boolean isBought = (purchase != null && verifyDeveloperPayload(purchase));
if (isBought) {
mInventorySet.add(donation.sku);
}
}
/*
// Fake items to debug user interface.
mInventorySet.add(mDonationList[0].sku);
mInventorySet.add(mDonationList[1].sku);
mInventorySet.add(mDonationList[2].sku);
*/
updateUi();
setWaitScreen(false);
}
};
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
mDonationList = DonationItems.get(getResources());
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Activity activity = getActivity();
assert activity != null;
View view = getActivity().getLayoutInflater().inflate(R.layout.donation_dialog, null, false);
AlertDialog.Builder builder = new AlertDialog.Builder(activity)
.setTitle(R.string.donation_title)
.setView(view)
.setNegativeButton(android.R.string.cancel, null);
TextView info = (TextView) view.findViewById(R.id.info);
info.setText(Html.fromHtml(getString(R.string.donation_info)));
info.setMovementMethod(new LinkMovementMethod());
mError = (TextView) view.findViewById(R.id.error);
mProgressBar = (ProgressBar) view.findViewById(android.R.id.progress);
mGridView = (GridView) view.findViewById(R.id.grid);
mGridView.setAdapter(new DonationAdapter(getActivity(), mDonationList, mInventorySet));
mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
DonationAdapter adapter = (DonationAdapter) parent.getAdapter();
Donation donation = adapter.getItem(position);
if (!mInventorySet.contains(donation.sku)) {
/**
* See {@link sharedcode.turboeditor.iab.DonationFragment#verifyDeveloperPayload(Purchase)}.
*/
String payload = "";
try {
mHelper.launchPurchaseFlow(
getActivity(), donation.sku, RC_REQUEST,
mPurchaseFinishedListener, payload);
} catch (Exception e) {
Toast.makeText(getActivity(), "Failed to launch a purchase flow.", Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(getActivity(), getString(R.string.donation_item_bought), Toast.LENGTH_LONG);
}
}
});
final AlertDialog alertDialog;
alertDialog = builder.create();
initBilling();
return alertDialog;
}
/**
* Shows a warning alert dialog to note, that those methods
* may suck hard and nobody will care about it.<br/>
* Starts an intent if user is agree with it.
*/
private void startPaymentIntentWithWarningAlertDialog(final Intent intent) {
CharSequence messageText = getString(R.string.donation_no_responsibility);
new AlertDialog.Builder(getActivity())
.setMessage(messageText)
.setNegativeButton(android.R.string.cancel, null)
.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
try {
startActivity(intent);
dismiss(); // Dismiss main fragment
} catch (ActivityNotFoundException e) { /* hell no */ }
}
})
.create()
.show();
}
private void setWaitScreen(boolean loading) {
mProgressBar.setVisibility(loading ? View.VISIBLE : View.GONE);
mGridView.setVisibility(!loading ? View.VISIBLE : View.GONE);
mError.setVisibility(View.GONE);
}
private void setErrorScreen(String errorMessage, final Runnable runnable) {
mProgressBar.setVisibility(View.GONE);
mGridView.setVisibility(View.GONE);
mError.setVisibility(View.VISIBLE);
mError.setText(errorMessage);
mError.setOnClickListener(runnable != null ? new View.OnClickListener() {
@Override
public void onClick(View v) {
runnable.run();
}
} : null);
}
/**
* Updates GUI to display changes.
*/
private void updateUi() {
DonationAdapter adapter = (DonationAdapter) mGridView.getAdapter();
adapter.notifyDataSetChanged();
}
@Override
public void onDestroy() {
super.onDestroy();
disposeBilling();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (mHelper.handleActivityResult(requestCode, resultCode, data)) {
return;
}
super.onActivityResult(requestCode, resultCode, data);
}
/**
* Releases com.android.vending.billing service.
*
* @see #initBilling()
*/
private void disposeBilling() {
if (mHelper != null) {
mHelper.dispose();
mHelper = null;
}
}
/**
* <b>Make sure you call {@link #disposeBilling()}!</b>
*
* @see #disposeBilling()
*/
private void initBilling() {
setWaitScreen(true);
disposeBilling();
String base64EncodedPublicKey = BuildConfig.GOOGLE_PLAY_PUBLIC_KEY;
mHelper = new IabHelper(getActivity(), base64EncodedPublicKey);
mHelper.enableDebugLogging(Constants.LOG_ENABLED);
mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
public void onIabSetupFinished(IabResult result) {
if (mHelper == null) return;
if (!result.isSuccess()) {
LogUtils.d(TAG, result.getMessage());
setErrorScreen(getString(R.string.donation_error_iab_setup), new Runnable() {
@Override
public void run() {
// Try to initialize billings again.
initBilling();
}
});
return;
}
setWaitScreen(false);
mHelper.queryInventoryAsync(mGotInventoryListener);
}
});
}
private boolean verifyDeveloperPayload(Purchase purchase) {
// TODO: This method itself is a big question.
// Personally, I think that this whole ‘best practices’ part
// is confusing and is trying to make you do work that the API
// should really be doing. Since the purchase is tied to a Google account,
// and the Play Store obviously saves this information, they should
// just give you this in the purchase details. Getting a proper user ID
// requires additional permissions that you shouldn’t need to add just
// to cover for the deficiencies of the IAB API.
return true;
}
private void complain(String message) {
Toast.makeText(getActivity(), message, Toast.LENGTH_SHORT).show();
}
public static void show(FragmentManager fm) {
FragmentTransaction ft = fm.beginTransaction();
Fragment prev = fm.findFragmentByTag("");
if (prev != null) {
ft.remove(prev);
}
ft.addToBackStack(null);
DonationFragment donationFragment = new DonationFragment();
donationFragment.show(ft, TAG_FRAGMENT_DONATION);
}
}