<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_menus
 *
 * @copyright   (C) 2017 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */
defined('_JEXEC') or die;

use Joomla\Registry\Registry;

// Initialise related data.
$menuLinks = MenusHelper::getMenuLinks('main');

JHtml::_('script', 'jui/treeselectmenu.jquery.min.js', array('version' => 'auto', 'relative' => true));

$script = <<<'JS'
	jQuery(document).ready(function ($) {
		var propagate = function () {
			var $this = $(this);
			var sub = $this.closest('li').find('.treeselect-sub [type="checkbox"]');
			sub.prop('checked', this.checked);
			if ($this.val() == 1)
				sub.each(propagate);
			else
				sub.attr('disabled', this.checked ? 'disabled' : null);
		};
		$('.treeselect')
			.on('click', '[type="checkbox"]', propagate)
			.find('[type="checkbox"]:checked').each(propagate);
	});
JS;

$style = <<<'CSS'
	.checkbox-toggle {
		display: none !important;
	}
	.checkbox-toggle[disabled] ~ .btn-hide {
		opacity: 0.5;
	}
	.checkbox-toggle ~ .btn-show {
		display: inline;
	}
	.checkbox-toggle ~ .btn-hide {
		display: none;
	}
	.checkbox-toggle:checked ~ .btn-show {
		display: none;
	}
	.checkbox-toggle:checked ~ .btn-hide {
		display: inline;
	}
CSS;

JFactory::getDocument()->addScriptDeclaration($script);
JFactory::getDocument()->addStyleDeclaration($style);
?>
<div id="menuselect-group" class="control-group">
	<div class="control-label"><?php echo $this->form->getLabel('hideitems', 'params'); ?></div>

	<div id="jform_params_hideitems" class="controls">
		<?php if (!empty($menuLinks)) : ?>
		<?php $id = 'jform_params_hideitems'; ?>

		<div class="well well-small">
			<div class="form-inline">
				<span class="small"><?php echo JText::_('COM_MENUS_ACTION_EXPAND'); ?>:
					<a id="treeExpandAll" href="javascript://"><?php echo JText::_('JALL'); ?></a>,
					<a id="treeCollapseAll" href="javascript://"><?php echo JText::_('JNONE'); ?></a>|
					<?php echo JText::_('JSHOW'); ?>:
					<a id="treeUncheckAll" href="javascript://"><?php echo JText::_('JALL'); ?></a>,
					<a id="treeCheckAll" href="javascript://"><?php echo JText::_('JNONE'); ?></a>
				</span>
				<input type="text" id="treeselectfilter" name="treeselectfilter" class="input-medium search-query pull-right" size="16"
					autocomplete="off" placeholder="<?php echo JText::_('JSEARCH_FILTER'); ?>" aria-invalid="false" tabindex="-1">
			</div>

			<div class="clearfix"></div>

			<hr class="hr-condensed" />

			<ul class="treeselect">

				<?php if (count($menuLinks)) : ?>
					<?php $prevlevel = 0; ?>
					<div class="alert alert-info"><?php echo JText::_('COM_MENUS_ITEM_FIELD_COMPONENTS_CONTAINER_HIDE_ITEMS_DESC')?></div>
					<li>
					<?php
					$params      = new Registry($this->item->params);
					$hiddenLinks = (array) $params->get('hideitems');

					foreach ($menuLinks as $i => $link) : ?>
						<?php
						if ($extension = $link->element):
							$lang->load("$extension.sys", JPATH_ADMINISTRATOR, null, false, true)
							|| $lang->load("$extension.sys", JPATH_ADMINISTRATOR . '/components/' . $extension, null, false, true);
						endif;

						if ($prevlevel < $link->level)
						{
							echo '<ul class="treeselect-sub">';
						}
						elseif ($prevlevel > $link->level)
						{
							echo str_repeat('</li></ul>', $prevlevel - $link->level);
						}
						else
						{
							echo '</li>';
						}

						$selected = in_array($link->value, $hiddenLinks) ? 1 : 0;
						?>
							<li>
								<div class="treeselect-item pull-left">
									<input type="checkbox" <?php echo $link->value > 1 ? ' name="jform[params][hideitems][]" ' : ''; ?>
										   id="<?php echo $id . $link->value; ?>" value="<?php echo (int) $link->value; ?>" class="novalidate checkbox-toggle"
										<?php echo $selected ? ' checked="checked"' : ''; ?> />

									<?php if ($link->value == 1): ?>
										<label for="<?php echo $id . $link->value; ?>" class="btn btn-mini btn-info pull-left"><?php echo JText::_('JALL') ?></label>
									<?php else: ?>
										<label for="<?php echo $id . $link->value; ?>" class="btn btn-mini btn-danger btn-hide pull-left"><?php echo JText::_('JHIDE') ?></label>
										<label for="<?php echo $id . $link->value; ?>" class="btn btn-mini btn-success btn-show pull-left"><?php echo JText::_('JSHOW') ?></label>
										<label for="<?php echo $id . $link->value; ?>" class="pull-left"><?php echo JText::_($link->text); ?></label>
									<?php endif; ?>
								</div>
						<?php

						if (!isset($menuLinks[$i + 1]))
						{
							echo str_repeat('</li></ul>', $link->level);
						}
						$prevlevel = $link->level;
						?>
						<?php endforeach; ?>
					</li>
					<?php endif; ?>

			</ul>
			<div id="noresultsfound" style="display:none;" class="alert alert-no-items">
				<?php echo JText::_('JGLOBAL_NO_MATCHING_RESULTS'); ?>
			</div>
		</div>
		<?php endif; ?>
	</div>
</div>
