space-android/src/com/owncloud/android/ui/dialog/IndeterminateProgressDialog.java

/* ownCloud Android client application
 *   Copyright (C) 2012-2013 ownCloud Inc.
 *
 *   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 2 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.owncloud.android.ui.dialog;

import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnKeyListener;
import android.os.Bundle;
import android.view.KeyEvent;

import com.actionbarsherlock.app.SherlockDialogFragment;
import com.owncloud.android.R;

public class IndeterminateProgressDialog extends SherlockDialogFragment {

    private static final String ARG_MESSAGE_ID = IndeterminateProgressDialog.class.getCanonicalName() + ".ARG_MESSAGE_ID";
    private static final String ARG_CANCELABLE = IndeterminateProgressDialog.class.getCanonicalName() + ".ARG_CANCELABLE";


    /**
     * Public factory method to get dialog instances.
     * 
     * @param messageId     Resource id for a message to show in the dialog.
     * @param cancelable    If 'true', the dialog can be cancelled by the user input (BACK button, touch outside...)
     * @return              New dialog instance, ready to show.
     */
    public static IndeterminateProgressDialog newInstance(int messageId, boolean cancelable) {
        IndeterminateProgressDialog fragment = new IndeterminateProgressDialog();
        Bundle args = new Bundle();
        args.putInt(ARG_MESSAGE_ID, messageId);
        args.putBoolean(ARG_CANCELABLE, cancelable);
        fragment.setArguments(args);
        return fragment;
    }

    
    /**
     * {@inheritDoc}
     */
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        /// create indeterminate progress dialog
        final ProgressDialog dialog = new ProgressDialog(getActivity());
        dialog.setIndeterminate(true);
        
        /// set message
        int messageId = getArguments().getInt(ARG_MESSAGE_ID, R.string.placeholder_sentence);
        dialog.setMessage(getString(messageId));
        
        /// set cancellation behavior
        boolean cancelable = getArguments().getBoolean(ARG_CANCELABLE, false);
        if (!cancelable) {
            dialog.setCancelable(false);
            // disable the back button
            OnKeyListener keyListener = new OnKeyListener() {
                @Override
                public boolean onKey(DialogInterface dialog, int keyCode,
                        KeyEvent event) {

                    if( keyCode == KeyEvent.KEYCODE_BACK){                  
                        return true;
                    }
                    return false;
                }

            };
            dialog.setOnKeyListener(keyListener);
        }
        
        return dialog;
    }    
    
}