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<?php
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/**
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* @file
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* pre-render.inc
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*
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* Contains various implementations for #pre_render callbacks on elements.
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*/
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/**
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* Pre-render fieldset element.
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*/
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function _bootstrap_pre_render_fieldset($element) {
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// Fieldsets may be rendered outside of a Form API context.
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if (!isset($element['#parents']) || !isset($element['#groups'])) {
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return $element;
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}
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// Inject group member elements belonging to this group.
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$parents = implode('][', $element['#parents']);
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$children = element_children($element['#groups'][$parents]);
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if (!empty($children)) {
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if (empty($element['#default_tab'])) {
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$children_keys = array_values($children);
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$element['#default_tab'] = $element['#groups'][$parents][array_shift($children_keys)]['#id'];
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}
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foreach ($children as $key) {
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// Break references and indicate that the element should be rendered as
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// group member.
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$child = (array) $element['#groups'][$parents][$key];
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$child['#attributes']['id'] = $child['#id'];
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$child['#group_fieldset'] = TRUE;
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// Inject the element as new child element.
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$element[] = $child;
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$sort = TRUE;
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}
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// Re-sort the element's children if we injected group member elements.
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if (isset($sort)) {
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$element['#sorted'] = FALSE;
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}
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}
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if (isset($element['#group'])) {
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$group = $element['#group'];
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// If this element belongs to a group, but the group-holding element does
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// not exist, we need to render it (at its original location).
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if (!isset($element['#groups'][$group]['#group_exists'])) {
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// Intentionally empty to clarify the flow; we simply return $element.
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}
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// If we injected this element into the group, then we want to render it.
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elseif (!empty($element['#group_fieldset'])) {
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// Intentionally empty to clarify the flow; we simply return $element.
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}
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// Otherwise, this element belongs to a group and the group exists, so we do
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// not render it.
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elseif (element_children($element['#groups'][$group])) {
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$element['#printed'] = TRUE;
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}
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}
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return $element;
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}
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