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<?php
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// $Id: blocks404.active.inc,v 1.4 2009/06/29 19:01:49 johnalbin Exp $
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/**
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* Helper function that performs the actual inclusion of the left and right regions.
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*/
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function _blocks404_preprocess_page(&$vars) {
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// Render the left and right regions.
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$vars['left'] = theme('blocks', 'left') . $vars['left'];
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$vars['right'] = theme('blocks', 'right') . $vars['right'];
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// Add JS/CSS added by blocks.
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$vars['scripts'] = drupal_get_js();
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$vars['styles'] = drupal_get_css();
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// Some themes (like Acquia Marina) are checking the show_blocks variable to
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// hide regions that aren't named left or right.
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$vars['show_blocks'] = TRUE;
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blocks404_reset_body_classes($vars);
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}
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/**
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* Resets the body classes if called from within a preprocess_page function.
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*/
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function blocks404_reset_body_classes(&$vars) {
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// Determine the new layout variable.
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$layout = 'none';
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if (!empty($vars['left'])) {
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$layout = 'left';
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}
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if (!empty($vars['right'])) {
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$layout = ($layout == 'left') ? 'both' : 'right';
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}
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// If the new layout is different than the old layout, reset the body classes.
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if ($layout != $vars['layout']) {
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// Some themes (like Zen) store body classes in an array.
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if (!empty($vars['body_classes_array'])) {
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$classes = $vars['body_classes_array'];
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}
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elseif (!empty($vars['classes_array'])) {
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$classes = $vars['classes_array'];
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}
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else {
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// Otherwise, we just act on core's $body_classes.
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$classes = explode(' ', $vars['body_classes']);
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}
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// Undo the old body classes. $pos will never be 0 because the first body
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// class is always front/not-front; see template_preprocess_page().
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if ($vars['layout'] == 'both' && $pos = array_search('two-sidebars', $classes)) {
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unset($classes[$pos]);
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}
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else if ($vars['layout'] == 'none' && $pos = array_search('no-sidebars', $classes)) {
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unset($classes[$pos]);
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}
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else {
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if ($pos = array_search('one-sidebar', $classes)) {
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unset($classes[$pos]);
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}
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if ($pos = array_search('sidebar-' . $vars['layout'], $classes)) {
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unset($classes[$pos]);
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}
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}
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// Save the new layout variable.
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$vars['layout'] = $layout;
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// Add information about the number of sidebars.
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if ($layout == 'both') {
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$classes[] = 'two-sidebars';
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}
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elseif ($layout == 'none') {
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$classes[] = 'no-sidebars';
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}
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else {
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$classes[] = 'one-sidebar';
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$classes[] = 'sidebar-' . $layout;
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}
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// Save the new body classes variables.
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if (!empty($vars['body_classes_array'])) {
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$vars['body_classes_array'] = $classes;
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}
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elseif (!empty($vars['classes_array'])) {
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$vars['classes_array'] = $classes;
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}
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$vars['body_classes'] = implode(' ', $classes);
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}
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}
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/**
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* Implements hook_form_alter().
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*
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* We need this to be able to submit any forms from the error pages, otherwise
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* the form POSTs to the error page and the form is not processed.
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*/
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function _blocks404_form_alter(&$form, $form_state, $form_id) {
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if ($_GET['q'] == BLOCKS404_PAGE) {
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// Form actions that POST to the 404 page won't work properly.
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if ($form['#action'] == url(BLOCKS404_PAGE) || $form['#action'] == url(BLOCKS404_ORIGINAL_QUERY) || $form_id == 'user_login_block' || $form['#action'] == url(BLOCKS404_PAGE, array('query' => 'destination=' . BLOCKS404_ORIGINAL_QUERY))) {
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$form['#action'] = url('<front>');
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}
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// Form actions that redirect back to the 404 page aren't good either.
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elseif (strpos($form['#action'], 'destination=' . urlencode(BLOCKS404_ORIGINAL_QUERY)) !== FALSE) {
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// Deconstruct the URL.
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list(, $path) = explode($GLOBALS['base_path'], $form['#action']);
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list($path, $query) = explode('?', $path);
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$query = explode('&', $query);
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if (($pos = array_search('destination=' . urlencode(BLOCKS404_ORIGINAL_QUERY), $query)) !== FALSE) {
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// Remove the broken redirection.
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unset($query[$pos]);
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// Reconstruct the URL.
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$form['#action'] = url($path, array('query' => $query));
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}
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}
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}
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}
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