SyncStatusMonitor.java

/*
 * Copyright (c) 2015 Jonas Kalderstam.
 *
 * This program 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.
 *
 * This program 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 com.nononsenseapps.notepad.data.receiver;

import android.accounts.Account;
import android.accounts.AccountManager;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.widget.Toast;

import com.nononsenseapps.notepad.R;
import com.nononsenseapps.notepad.data.local.sql.MyContentProvider;
import com.nononsenseapps.notepad.ui.settings.SyncPrefs;
import com.nononsenseapps.notepad.data.service.gtasks.SyncAdapter;
import com.nononsenseapps.notepad.util.Log;

public class SyncStatusMonitor extends BroadcastReceiver {
    private static final String TAG = "SyncStatusMonitor";
    Activity activity;
    OnSyncStartStopListener listener;

    /**
     * Call this in the activity's onResume
     */
    public void startMonitoring(Activity activity, OnSyncStartStopListener listener) {
        this.activity = activity;
        this.listener = listener;

        activity.registerReceiver(this, new IntentFilter(SyncAdapter.SYNC_FINISHED));
        activity.registerReceiver(this, new IntentFilter(SyncAdapter.SYNC_STARTED));

        final String accountName = PreferenceManager.getDefaultSharedPreferences(activity)
                .getString(SyncPrefs.KEY_ACCOUNT, "");
        Account account = null;
        if (accountName != null && !accountName.isEmpty()) {
            account = SyncPrefs.getAccount(AccountManager.get(activity), accountName);
        }
        // Sync state might have changed, make sure we're spinning when
        // we should
        try {
            if (account != null && ContentResolver.isSyncActive(account, MyContentProvider
                    .AUTHORITY)) {
                listener.onSyncStartStop(true);
            } else {
                listener.onSyncStartStop(false);
            }
        } catch (Exception e) {
            Log.e(TAG, e.getLocalizedMessage());
        }
    }

    /**
     * Call this in the activity's onPause
     */
    public void stopMonitoring() {
        try {
            activity.unregisterReceiver(this);
        } catch (Exception e) {
            Log.e(TAG, e.getLocalizedMessage());
        }
        try {
            listener.onSyncStartStop(false);
        } catch (Exception e) {
            Log.e(TAG, e.getLocalizedMessage());
        }
    }

    @Override
    public void onReceive(final Context context, final Intent intent) {
        if (intent.getAction().equals(SyncAdapter.SYNC_STARTED)) {
            activity.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    try {
                        listener.onSyncStartStop(true);
                    } catch (Exception e) {
                        Log.e(TAG, e.getLocalizedMessage());
                    }
                }
            });
        } else { //if (intent.getAction().equals(SyncAdapter.SYNC_FINISHED)) {
            activity.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    try {
                        listener.onSyncStartStop(false);
                    } catch (Exception e) {
                        Log.e(TAG, e.getLocalizedMessage());
                    }
                }
            });
            Bundle b = intent.getExtras();
            if (b == null) {
                b = Bundle.EMPTY;
            }
            tellUser(context, b.getInt(SyncAdapter.SYNC_RESULT, SyncAdapter.SUCCESS));
        }
    }

    private void tellUser(Context context, int result) {
        int text = R.string.sync_failed;
        switch (result) {
            case SyncAdapter.ERROR:
                text = R.string.sync_failed;
                break;
            case SyncAdapter.LOGIN_FAIL:
                text = R.string.sync_login_failed;
                break;
            case SyncAdapter.SUCCESS:
            default:
                return;
        }

        Log.d("JONAS", "SYNC: " + result);
        Toast toast = Toast.makeText(context, text, Toast.LENGTH_SHORT);
        toast.show();
    }

    public interface OnSyncStartStopListener {
        /**
         * This is always called on the activity's UI thread.
         */
        void onSyncStartStop(final boolean ongoing);
    }
}