com.google.android.apps.mytracks.fragments.CheckPermissionFragment.java Source code

Introduction

Here is the source code for com.google.android.apps.mytracks.fragments.CheckPermissionFragment.java

Source

/*
 * Copyright 2013 Google Inc.
 *
 * 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.google.android.apps.mytracks.fragments;

import com.google.android.apps.mytracks.io.sendtogoogle.SendToGoogleUtils;
import com.google.android.gms.auth.GoogleAuthException;
import com.google.android.gms.auth.UserRecoverableAuthException;
import com.google.api.client.googleapis.extensions.android.gms.auth.UserRecoverableAuthIOException;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;

import java.io.IOException;

/**
 * A non UI fragment to check permission.
 * 
 * @author Jimmy Shih
 */
public class CheckPermissionFragment extends Fragment {

    /**
     * Interface for caller of this fragment.
     * 
     * @author Jimmy Shih
     */
    public interface CheckPermissionCaller {

        /**
         * Called when check permission is done.
         * 
         * @param scope the permission scope
         * @param success true if success
         * @param intent if not success, intent to prompt for permission
         */
        public void onCheckPermissionDone(String scope, boolean success, Intent intent);
    }

    public static final String CHECK_PERMISSION_TAG = "checkPermission";

    private static final String TAG = CheckPermissionFragment.class.getSimpleName();
    private static final String KEY_ACCOUNT_NAME = "accountName";
    private static final String KEY_SCOPE = "scope";

    private CheckPermissionCaller caller;

    public static CheckPermissionFragment newInstance(String accountName, String scope) {
        Bundle bundle = new Bundle();
        bundle.putString(KEY_ACCOUNT_NAME, accountName);
        bundle.putString(KEY_SCOPE, scope);

        CheckPermissionFragment checkPermissionFragment = new CheckPermissionFragment();
        checkPermissionFragment.setArguments(bundle);
        return checkPermissionFragment;
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            caller = (CheckPermissionCaller) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(
                    activity.toString() + " must implement " + CheckPermissionCaller.class.getSimpleName());
        }
    }

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

        // Only want one instance
        setRetainInstance(true);

        Thread thread = new Thread(new Runnable() {
            @Override
            public void run() {
                String accountName = getArguments().getString(KEY_ACCOUNT_NAME);
                String scope = getArguments().getString(KEY_SCOPE);
                try {
                    SendToGoogleUtils.getGoogleAccountCredential(getActivity(), accountName, scope);
                    finish(scope, true, null);
                } catch (UserRecoverableAuthException e) {
                    finish(scope, false, e.getIntent());
                } catch (GoogleAuthException e) {
                    Log.e(TAG, "GoogleAuthException", e);
                    finish(scope, false, null);
                } catch (UserRecoverableAuthIOException e) {
                    finish(scope, false, e.getIntent());
                } catch (IOException e) {
                    Log.e(TAG, "IOException", e);
                    finish(scope, false, null);
                }
            }
        });
        thread.start();
    }

    private void finish(final String scope, final boolean success, final Intent intent) {
        getFragmentManager().popBackStack();
        getActivity().runOnUiThread(new Runnable() {

            @Override
            public void run() {
                caller.onCheckPermissionDone(scope, success, intent);
            }
        });
    }
}