Location: PHPKode > projects > Pieforms > pieforms-php5-0.2.2/src/pieform/elements/image.php
<?php
/**
 * This program is part of Pieforms
 *
 *  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, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 *
 * @package    pieform
 * @subpackage element
 * @author     Nigel McNie <hide@address.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
 * @copyright  (C) 2006 Catalyst IT Ltd http://catalyst.net.nz
 *
 */

/**
 * Renders an <input type="image"> button
 *
 * @param Pieform  $form    The form to render the element for
 * @param array    $element The element to render
 * @return string           The HTML for the element
 */
function pieform_element_image(Pieform $form, $element) {
    if (!isset($element['src'])) {
        throw new PieformException('"image" elements must have a "src" for the image');
    }
    if (!isset($element['value'])) {
        $element['value'] = true;
    }
    return '<input type="image" src="' . Pieform::hsc($element['src']) . '"'
        . $form->element_attributes($element)
        . ' value="' . Pieform::hsc($form->get_value($element)) . '">';
}

function pieform_element_image_set_attributes($element) {
    $element['submitelement'] = true;
    return $element;
}

function pieform_element_image_get_value(Pieform $form, $element) {
    if (isset($element['value'])) {
        return $element['value'];
    }
    
    $global = $form->get_property('method') == 'get' ? $_GET : $_POST;
    if (isset($global[$element['name'] . '_x'])) {
        return true;
    }

    return null;
}

?>
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