/**
* Render all the <th> cells that will be contained in the <thead>.
*
* @param Fields $fields
* @param TableCellHelper $renderer
* @param SelectSort $sorter
* @return string
*/
protected function renderHeadCells(Fields $fields, TableCellHelper $renderer, SelectSort $sorter = null)
{
$out = '';
foreach ($fields as $index => $field) {
$out .= '<th scope="col">';
$content = $renderer->getHeaderRenderer()->render($field);
if (!$field->isSortable() || !$sorter) {
$out .= $content;
} else {
$direction = 'asc';
if ($sorter && $sorter->getSortedField() === $field && 'ASC' === $sorter->getSortedDirection()) {
$direction = 'desc';
}
$out .= $this->renderSortLink($content, $field->getQueryStringId(), $direction, $sorter);
}
$out .= '</th>';
}
return $out;
}
/**
* Render a sorting link for a particular column. If the collumn is
* currently selected, which we can detect using a SelectSort helper, we use the
* carets provided in Bootstrap to indicate in which direction it is sorted.
*
* @param string $content
* @param string $fieldId
* @param string $direction
* @param SelectSort $sorter
* @return string
*/
protected function renderSortLink($content, $fieldId, $direction, SelectSort $sorter = null)
{
$request = $this->view->getRequest();
$caret = '';
if ($sorter && $sorter->isSorted() && $sorter->getSortedField()->getQueryStringId() === $fieldId || $fieldId === $request->getQuery('sort')) {
if ($sorter) {
$activeDir = strtolower($sorter->getSortedDirection());
} else {
$activeDir = 'asc' === $request->getQuery('dir') ? 'asc' : 'desc';
}
if ('asc' === $activeDir) {
$caret = ' <span class="caret caret-up"></span>';
} else {
$caret = '<span class="caret"></span>';
}
}
return sprintf('<a href="%s">%s%s</a>', $this->view->escapeHtmlAttr($this->url($fieldId, $direction)), $this->view->escapeHtml($content), $caret);
}
protected function getActiveSortDirection($fieldId, SelectSort $sorter = null)
{
if (!$sorter) {
return 'asc' === $this->view->getRequest()->getQuery('dir') ? 'asc' : 'desc';
} else {
if ($sorter->isSorted() && $sorter->getSortedField()->getQueryStringId() === $fieldId) {
return strtolower($sorter->getSortedDirection());
}
}
return 'asc';
}
