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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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* Implements hook_pre_render().
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*/
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function bootstrap_pre_render($element) {
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if (!empty($element['#bootstrap_ignore_pre_render'])) {
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return $element;
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}
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// Only add the "form-control" class for specific element input types.
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$types = array(
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// Core.
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'password',
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'password_confirm',
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'machine_name',
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'select',
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'textarea',
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'textfield',
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// Elements module (HTML5).
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'date',
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'datefield',
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'email',
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'emailfield',
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'number',
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'numberfield',
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'range',
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'rangefield',
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'search',
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'searchfield',
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'tel',
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'telfield',
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'url',
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'urlfield',
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// Webform module.
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'webform_email',
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'webform_number',
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);
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// Add necessary classes for specific types.
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if ($type = !empty($element['#type']) ? $element['#type'] : FALSE) {
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if (in_array($type, $types) || ($type === 'file' && empty($element['#managed_file']))) {
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$element['#attributes']['class'][] = 'form-control';
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}
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if ($type === 'machine_name') {
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$element['#wrapper_attributes']['class'][] = 'form-inline';
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}
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}
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// Add smart descriptions to the element, if necessary.
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bootstrap_element_smart_description($element);
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// Return the modified element.
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return $element;
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}
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/**
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* Implements hook_pre_render_HOOK().
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*/
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function bootstrap_pre_render_fieldset($element) {
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// Fieldsets may be rendered outside of a Form API context.
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if (!empty($element['#bootstrap_ignore_pre_render']) || !isset($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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