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<?php
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// $Id: viewfield.theme.inc,v 1.3 2009/05/24 05:33:34 darrenoh Exp $
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/**
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* @file
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* Theme functions.
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*/
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/**
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* Return a themed view avoiding viewfield recursion.
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*/
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function theme_viewfield_formatter_default($element) {
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global $_viewfield_stack;
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// For safety's sake, we can only display 2 levels of viewfields.
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if (count($_viewfield_stack) <= 2) {
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list($view_name, $display) = explode('|', $element['#item']['vname'], 2);
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$view_args = _viewfield_get_view_args($element['#item']['token_enabled'], $element['#item']['vargs'], $element['#node']);
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$node = $element['#node'];
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// Need to prevent recursive views and node building, but don't need to do
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// it on new node previews.
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if ($node->nid) {
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_viewfield_nodestack_push($node->nid);
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}
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array_unshift($view_args, $view_name, $display);
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$output = call_user_func_array('views_embed_view', $view_args);
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// This node is "safe" again.
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if ($node->nid) {
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_viewfield_nodestack_pop();
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}
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return $output;
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}
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}
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/**
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* Perform argument replacement
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*/
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function _viewfield_get_view_args($token_enabled, $vargs, $node) {
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$args = array();
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// Prevent token_replace() from running this function a second time
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// before it completes the first time.
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static $tokens = TRUE;
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if ($tokens && !empty($vargs)) {
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$pos = 0;
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while ($pos < strlen($vargs)) {
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$found = FALSE;
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// If string starts with a quote, start after quote and get everything
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// before next quote.
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if (strpos($vargs, '"', $pos) === $pos) {
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if (($quote = strpos($vargs, '"', ++$pos)) !== FALSE) {
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// Skip pairs of quotes.
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while (!(($ql = strspn($vargs, '"', $quote)) & 1)) {
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$quote = strpos($vargs, '"', $quote + $ql);
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}
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$args[] = str_replace('""', '"', substr($vargs, $pos, $quote + $ql - $pos - 1));
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$pos = $quote + $ql + 1;
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$found = TRUE;
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}
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}
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elseif (($comma = strpos($vargs, ',', $pos)) !== FALSE) {
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// Otherwise, get everything before next comma.
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$args[] = substr($vargs, $pos, $comma - $pos);
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// Skip to after comma and repeat
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$pos = $comma + 1;
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$found = TRUE;
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}
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if (!$found) {
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$args[] = substr($vargs, $pos);
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$pos = strlen($vargs);
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}
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}
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if ($token_enabled) {
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$tokens = FALSE;
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// If the view field is being loaded as a "view field" of "view row",
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// instead of a simple "node field", the node object is not fully populated:
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// we need a full node to perform a correct replacement.
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$node_values = $node;
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if ($node->build_mode == 'views') {
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$node_values = node_load($node->nid);
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}
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$args = token_replace($args, 'node', $node_values);
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$tokens = TRUE;
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}
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// For backwards compatibility, we scan for %nid, etc.
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global $user;
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foreach ($args as $key => $a) {
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$args[$key] = strtr($a, array('%nid' => $node->nid, '%author' => $node_values->uid, '%viewer' => $user->uid));
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}
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}
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return $args;
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}
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/**
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* Function for adding a node ID to the global stack of node IDs. This prevents
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* us from recursively building a node, with a view, with the node, with the
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* view...
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*/
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function _viewfield_nodestack_push($nid) {
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global $_viewfield_stack;
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if (!isset($_viewfield_stack)) {
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$_viewfield_stack = array();
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}
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$_viewfield_stack[] = $nid;
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}
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/**
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* Function for removing a node ID from the global stack of node IDs when there
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* is no longer a danger of building a node, with a view, with the node, with
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* the view...
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*/
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function _viewfield_nodestack_pop() {
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global $_viewfield_stack;
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return array_pop($_viewfield_stack);
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}
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function theme_viewfield_select($element) {
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if (!empty($element['#children'])) {
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$field = $element['#field_info'][$element['#field_name']];
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if ($field['multiple'] && $element['#delta'] == 0) {
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// This is needed only for multiple viewfields.
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drupal_add_css(drupal_get_path('module', 'viewfield') .'/theme/viewfield.css');
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}
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return '<div class="viewfield-select">'. $element['#children'] .'</div>';
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}
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}
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