<?php

/**
 * Hoa
 *
 *
 * @license
 *
 * New BSD License
 *
 * Copyright © 2007-2017, Hoa community. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Hoa nor the names of its contributors may be
 *       used to endorse or promote products derived from this software without
 *       specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

namespace Psy\Readline\Hoa;

/**
 * This class is the object which is transmit through event channels.
 */
class EventBucket
{
    /**
     * The source object (must be of kind `Hoa\Event\Source`).
     */
    protected $_source = null;

    /**
     * Data attached to the bucket.
     */
    protected $_data = null;

    /**
     * Allocates a new bucket with various data attached to it.
     */
    public function __construct($data = null)
    {
        $this->setData($data);

        return;
    }

    /**
     * Sends this object on the event channel.
     */
    public function send(string $eventId, EventSource $source)
    {
        return Event::notify($eventId, $source, $this);
    }

    /**
     * Sets a new source.
     */
    public function setSource(EventSource $source)
    {
        $old = $this->_source;
        $this->_source = $source;

        return $old;
    }

    /**
     * Returns the source.
     */
    public function getSource()
    {
        return $this->_source;
    }

    /**
     * Sets new data.
     */
    public function setData($data)
    {
        $old = $this->_data;
        $this->_data = $data;

        return $old;
    }

    /**
     * Returns the data.
     */
    public function getData()
    {
        return $this->_data;
    }
}

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