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path: root/views/default/input/checkboxes.php
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<?php
/**
 * Elgg checkbox input
 * Displays a checkbox input field
 * NB: This also includes a hidden input with the same name as the checkboxes
 * to make sure something is sent to the server.  The default value is 0.
 * If using JS, be specific to avoid selecting the hidden default value:
 * 	$('input[type=checkbox][name=internalname])
 *
 * @package Elgg
 * @subpackage Core
 * @author Curverider Ltd
 * @link http://elgg.org/
 *
 * @uses string $vars['internalname'] The name of the input fields (Forced to an array by appending [])
 * @uses array $vars['options'] An array of strings representing the label => option for the each checkbox field
 * @uses string $vars['internalid'] The id for each input field. Optional (Only use this with a single value.)
 * @uses string $vars['default'] The default value to send if nothing is checked. Optional, defaults to 0.
 * @uses bool $vars['disabled'] Make all input elements disabled. Optional.
 * @uses string $vars['value'] The current value. Optional.
 * @uses string $vars['class'] The class of each input element. Optional.
 * @uses string $vars['js'] Any Javascript to enter into the input tag. Optional.
 *
 */

if (!isset($vars['value']) || $vars['value'] === FALSE) { 
	$vars['value'] = elgg_get_sticky_value($vars['internalname']); 
}

$class = (isset($vars['class'])) ? $vars['class'] : 'input_checkboxes';
$value = (isset($vars['value'])) ? $vars['value'] : NULL;
$value_array = (is_array($value)) ? array_map('strtolower', $value) : array(strtolower($value));
$internalname = (isset($vars['internalname'])) ? $vars['internalname'] : '';
$options = (isset($vars['options']) && is_array($vars['options'])) ? $vars['options'] : array();
$default = (isset($vars['default'])) ? $vars['default'] : 0;

$id = (isset($vars['internalid'])) ? $vars['internalid'] : '';
$disabled = (isset($vars['disabled'])) ? $vars['disabled'] : FALSE;
$js = (isset($vars['js'])) ? $vars['js'] : '';

if ($options) {
	// include a default value so if nothing is checked 0 will be passed.
	if ($internalname) {
		echo "<input type=\"hidden\" name=\"$internalname\" value=\"$default\">";
	}

	foreach($options as $label => $option) {
		// @hack - This sorta checks if options is not an assoc array and then
		// ignores the label (because it's just the index) and sets the value ($option)
		// as the label.
		// Wow.
		$labelint = (int) $label;

		if ("{$label}" == "{$labelint}") {
			$label = $option;
		}

		if (!in_array(strtolower($option), $value_array)) {
			$selected = FALSE;
		} else {
			$selected = TRUE;
		}

		$attr = array(
			'type="checkbox"',
			'value="' . htmlentities($option, ENT_QUOTES, 'UTF-8') . '"'
		);

		if ($id) {
			$attr[] = "id=\"$id\"";
		}

		if ($class) {
			$attr[] = "class=\"$class\"";
		}

		if ($disabled) {
			$attr[] = 'disabled="yes"';
		}

		if ($selected) {
			$attr[] = 'checked = "checked"';
		}

		if ($js) {
			$attr[] = $js;
		}

		if ($internalname) {
			// @todo this really, really should only add the []s if there are > 1 element in options.
			$attr[] = "name=\"{$internalname}[]\"";
		}

		$attr_str = implode(' ', $attr);

		echo "<label><input $attr_str />$label</label><br />";
	}
}