668 lines
22 KiB
PHP
668 lines
22 KiB
PHP
<?php
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/**
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* @file
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* Contains theme override functions and preprocess functions for the Zen theme.
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*
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* IMPORTANT WARNING: DO NOT MODIFY THIS FILE.
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*
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* The base Zen theme is designed to be easily extended by its sub-themes. You
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* shouldn't modify this or any of the CSS or PHP files in the root zen/ folder.
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* See the online documentation for more information:
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* http://drupal.org/node/193318
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*/
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// Auto-rebuild the theme registry during theme development.
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if (theme_get_setting('zen_rebuild_registry')) {
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drupal_rebuild_theme_registry();
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}
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/**
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* Implements HOOK_theme().
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*/
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function zen_theme(&$existing, $type, $theme, $path) {
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// When #341140 is fixed, replace _zen_path() with drupal_get_path().
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include_once './' . _zen_path() . '/zen-internals/template.theme-registry.inc';
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return _zen_theme($existing, $type, $theme, $path);
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}
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/**
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* Return a themed breadcrumb trail.
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*
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* @param $breadcrumb
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* An array containing the breadcrumb links.
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* @return
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* A string containing the breadcrumb output.
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*/
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function zen_breadcrumb($breadcrumb) {
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// Determine if we are to display the breadcrumb.
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$show_breadcrumb = theme_get_setting('zen_breadcrumb');
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if ($show_breadcrumb == 'yes' || $show_breadcrumb == 'admin' && arg(0) == 'admin') {
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// Optionally get rid of the homepage link.
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$show_breadcrumb_home = theme_get_setting('zen_breadcrumb_home');
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if (!$show_breadcrumb_home) {
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array_shift($breadcrumb);
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}
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// Return the breadcrumb with separators.
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if (!empty($breadcrumb)) {
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$breadcrumb_separator = theme_get_setting('zen_breadcrumb_separator');
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$trailing_separator = $title = '';
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if (theme_get_setting('zen_breadcrumb_title')) {
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if ($title = drupal_get_title()) {
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$trailing_separator = $breadcrumb_separator;
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}
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}
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elseif (theme_get_setting('zen_breadcrumb_trailing')) {
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$trailing_separator = $breadcrumb_separator;
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}
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return '<div class="breadcrumb">' . implode($breadcrumb_separator, $breadcrumb) . "$trailing_separator$title</div>";
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}
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}
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// Otherwise, return an empty string.
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return '';
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}
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/**
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* Return a themed set of links.
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*
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* @param $links
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* A keyed array of links to be themed.
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* @param $attributes
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* A keyed array of attributes
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* @param $heading
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* An optional keyed array or a string for a heading to precede the links.
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* When using an array the following keys can be used:
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* - text: the heading text
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* - level: the heading level (e.g. 'h2', 'h3')
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* - class: (optional) a string of the CSS classes for the heading
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* When using a string it will be used as the text of the heading and the
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* level will default to 'h2'.
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* Headings should be used on navigation menus and any list of links that
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* consistently appears on multiple pages. To make the heading invisible
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* use the 'element-invisible' CSS class. Do not use 'display:none', which
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* removes it from screen-readers and assistive technology. Headings allow
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* screen-reader and keyboard only users to navigate to or skip the links.
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* See http://juicystudio.com/article/screen-readers-display-none.php
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* and http://www.w3.org/TR/WCAG-TECHS/H42.html for more information.
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* @return
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* A string containing an unordered list of links.
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*/
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function zen_links($links, $attributes = array('class' => 'links'), $heading = '') {
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global $language;
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$output = '';
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if (count($links) > 0) {
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// Treat the heading first if it is present to prepend it to the
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// list of links.
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if (!empty($heading)) {
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if (is_string($heading)) {
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// Prepare the array that will be used when the passed heading
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// is a string.
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$heading = array(
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'text' => $heading,
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// Set the default level of the heading.
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'level' => 'h2',
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);
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}
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$output .= '<' . $heading['level'];
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if (!empty($heading['class'])) {
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$output .= drupal_attributes(array('class' => $heading['class']));
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}
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$output .= '>' . check_plain($heading['text']) . '</' . $heading['level'] . '>';
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}
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$output .= '<ul'. drupal_attributes($attributes) .'>';
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$num_links = count($links);
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$i = 1;
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foreach ($links as $key => $link) {
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$class = $key;
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// Add first, last and active classes to the list of links to help out themers.
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if ($i == 1) {
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$class .= ' first';
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}
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if ($i == $num_links) {
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$class .= ' last';
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}
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if (isset($link['href']) && ($link['href'] == $_GET['q'] || ($link['href'] == '<front>' && drupal_is_front_page()))
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&& (empty($link['language']) || $link['language']->language == $language->language)) {
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$class .= ' active';
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}
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$output .= '<li'. drupal_attributes(array('class' => $class)) .'>';
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if (isset($link['href'])) {
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// Pass in $link as $options, they share the same keys.
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$output .= l($link['title'], $link['href'], $link);
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}
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else if (!empty($link['title'])) {
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// Some links are actually not links, but we wrap these in <span> for adding title and class attributes
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if (empty($link['html'])) {
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$link['title'] = check_plain($link['title']);
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}
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$span_attributes = '';
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if (isset($link['attributes'])) {
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$span_attributes = drupal_attributes($link['attributes']);
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}
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$output .= '<span'. $span_attributes .'>'. $link['title'] .'</span>';
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}
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$i++;
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$output .= "</li>\n";
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}
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$output .= '</ul>';
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}
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return $output;
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}
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/**
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* Implements theme_menu_item_link()
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*/
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function zen_menu_item_link($link) {
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if (empty($link['localized_options'])) {
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$link['localized_options'] = array();
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}
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// If an item is a LOCAL TASK, render it as a tab
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if ($link['type'] & MENU_IS_LOCAL_TASK) {
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$link['title'] = '<span class="tab">' . check_plain($link['title']) . '</span>';
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$link['localized_options']['html'] = TRUE;
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}
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return l($link['title'], $link['href'], $link['localized_options']);
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}
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/**
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* Duplicate of theme_menu_local_tasks() but adds clearfix to tabs.
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*/
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function zen_menu_local_tasks() {
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$output = '';
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// CTools requires a different set of local task functions.
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if (module_exists('ctools')) {
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ctools_include('menu');
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$primary = ctools_menu_primary_local_tasks();
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$secondary = ctools_menu_secondary_local_tasks();
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}
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else {
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$primary = menu_primary_local_tasks();
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$secondary = menu_secondary_local_tasks();
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}
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if ($primary) {
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$output .= '<ul class="tabs primary clearfix">' . $primary . '</ul>';
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}
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if ($secondary) {
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$output .= '<ul class="tabs secondary clearfix">' . $secondary . '</ul>';
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}
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return $output;
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}
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/**
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* Return a set of blocks available for the current user.
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*
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* @param $region
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* Which set of blocks to retrieve.
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* @param $show_blocks
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* A boolean to determine whether to render sidebar regions or not. Should be
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* the same value as passed to theme_page.
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* @return
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* A string containing the themed blocks for this region.
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*
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* @see zen_show_blocks_discovery()
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*/
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function zen_blocks($region, $show_blocks = NULL) {
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// Since Drupal 6 doesn't pass $show_blocks to theme_blocks, we manually call
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// theme('blocks', NULL, $show_blocks) so that this function can remember the
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// value on later calls.
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static $render_sidebars = TRUE;
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if (!is_null($show_blocks)) {
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$render_sidebars = $show_blocks;
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}
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// If zen_blocks was called with a NULL region, its likely we were just
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// setting the $render_sidebars static variable.
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if ($region) {
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$output = '';
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// If $renders_sidebars is FALSE, don't render any region whose name begins
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// with "sidebar_".
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if ($render_sidebars || (strpos($region, 'sidebar_') !== 0)) {
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// Allow context module to set blocks.
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if (function_exists('context_blocks')) {
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$output = context_blocks($region);
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}
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else {
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foreach (block_list($region) as $key => $block) {
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// $key == module_delta
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$output .= theme('block', $block);
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}
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}
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}
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// Add any content assigned to this region through drupal_set_content() calls.
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$output .= drupal_get_content($region);
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$elements['#children'] = $output;
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$elements['#region'] = $region;
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// Set the theme hook suggestions.
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$hook = array('region_' . $region);
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if (strpos($region, 'sidebar_') === 0) {
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$hook[] = 'region_sidebar';
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}
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$hook[] = 'region';
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return $output ? theme($hook, $elements) : '';
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}
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}
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/**
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* Examine the $show_blocks variable before template_preprocess_page() is called.
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*
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* @param $vars
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* An array of variables to pass to the page template.
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*
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* @see zen_blocks()
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*/
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function zen_show_blocks_discovery(&$vars) {
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if ($vars['show_blocks'] == FALSE) {
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// Allow zen_blocks() to statically cache the $show_blocks variable. A TRUE
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// value is assumed, so we only need to override when $show_blocks is FALSE.
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theme('blocks', NULL, FALSE);
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}
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}
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/**
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* Override or insert variables into templates before other preprocess functions have run.
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*
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* @param $vars
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* An array of variables to pass to the theme template.
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* @param $hook
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* The name of the template being rendered.
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*/
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function zen_preprocess(&$vars, $hook) {
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// In D6, the page.tpl uses a different variable name to hold the classes.
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$key = ($hook == 'page' || $hook == 'maintenance_page') ? 'body_classes' : 'classes';
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// Create a D7-standard classes_array variable.
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if (array_key_exists($key, $vars)) {
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// Views (and possibly other modules) have templates with a $classes
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// variable that isn't a string, so we leave those variables alone.
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if (is_string($vars[$key])) {
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$vars['classes_array'] = explode(' ', $hook . ' ' . $vars[$key]);
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unset($vars[$key]);
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}
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}
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else {
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$vars['classes_array'] = array($hook);
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}
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// Add support for Skinr
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if (!empty($vars['skinr']) && array_key_exists('classes_array', $vars)) {
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$vars['classes_array'][] = $vars['skinr'];
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}
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}
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/**
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* Override or insert variables into the page templates.
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*
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* @param $vars
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* An array of variables to pass to the theme template.
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* @param $hook
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* The name of the template being rendered ("page" in this case.)
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*/
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function zen_preprocess_page(&$vars, $hook) {
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// If the user is silly and enables Zen as the theme, add some styles.
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if ($GLOBALS['theme'] == 'zen') {
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include_once './' . _zen_path() . '/zen-internals/template.zen.inc';
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_zen_preprocess_page($vars, $hook);
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}
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// Add conditional stylesheets.
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elseif (!module_exists('conditional_styles')) {
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$language = $GLOBALS['language']->direction == LANGUAGE_RTL ? '_rtl' : '';
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$vars['conditional_styles'] = variable_get('conditional_styles_' . $GLOBALS['theme'] . $language, '');
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$vars['styles'] .= $vars['conditional_styles'];
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}
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// Classes for body element. Allows advanced theming based on context
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// (home page, node of certain type, etc.)
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// Remove the mostly useless page-ARG0 class.
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if ($index = array_search(preg_replace('![^abcdefghijklmnopqrstuvwxyz0-9-_]+!s', '', 'page-'. drupal_strtolower(arg(0))), $vars['classes_array'])) {
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unset($vars['classes_array'][$index]);
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}
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if (!$vars['is_front']) {
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// Add unique class for each page.
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$path = drupal_get_path_alias($_GET['q']);
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$vars['classes_array'][] = drupal_html_class('page-' . $path);
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// Add unique class for each website section.
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list($section, ) = explode('/', $path, 2);
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if (arg(0) == 'node') {
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if (arg(1) == 'add') {
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$section = 'node-add';
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}
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elseif (is_numeric(arg(1)) && (arg(2) == 'edit' || arg(2) == 'delete')) {
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$section = 'node-' . arg(2);
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}
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}
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$vars['classes_array'][] = drupal_html_class('section-' . $section);
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}
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if (theme_get_setting('zen_wireframes')) {
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$vars['classes_array'][] = 'with-wireframes'; // Optionally add the wireframes style.
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}
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// We need to re-do the $layout and body classes because
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// template_preprocess_page() assumes sidebars are named 'left' and 'right'.
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$vars['layout'] = 'none';
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if (!empty($vars['sidebar_first'])) {
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$vars['layout'] = 'first';
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}
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if (!empty($vars['sidebar_second'])) {
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$vars['layout'] = ($vars['layout'] == 'first') ? 'both' : 'second';
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}
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// If the layout is 'none', then template_preprocess_page() will already have
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// set a 'no-sidebars' class since it won't find a 'left' or 'right' sidebar.
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if ($vars['layout'] != 'none') {
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// Remove the incorrect 'no-sidebars' class.
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if ($index = array_search('no-sidebars', $vars['classes_array'])) {
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unset($vars['classes_array'][$index]);
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}
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// Set the proper layout body classes.
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if ($vars['layout'] == 'both') {
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$vars['classes_array'][] = 'two-sidebars';
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}
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else {
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$vars['classes_array'][] = 'one-sidebar';
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$vars['classes_array'][] = 'sidebar-' . $vars['layout'];
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}
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}
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// Store the menu item since it has some useful information.
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$vars['menu_item'] = menu_get_item();
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switch ($vars['menu_item']['page_callback']) {
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case 'views_page':
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// Is this a Views page?
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$vars['classes_array'][] = 'page-views';
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break;
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case 'page_manager_page_execute':
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case 'page_manager_node_view':
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case 'page_manager_contact_site':
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// Is this a Panels page?
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$vars['classes_array'][] = 'page-panels';
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break;
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}
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}
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/**
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* Override or insert variables into the maintenance page template.
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*
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* @param $vars
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* An array of variables to pass to the theme template.
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* @param $hook
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* The name of the template being rendered ("maintenance_page" in this case.)
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*/
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function zen_preprocess_maintenance_page(&$vars, $hook) {
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// If Zen is the maintenance theme, add some styles.
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if ($GLOBALS['theme'] == 'zen') {
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include_once './' . _zen_path() . '/zen-internals/template.zen.inc';
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_zen_preprocess_page($vars, $hook);
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}
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// Add conditional stylesheets.
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elseif (!module_exists('conditional_styles')) {
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$language = $GLOBALS['language']->direction == LANGUAGE_RTL ? '_rtl' : '';
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$vars['conditional_styles'] = variable_get('conditional_styles_' . $GLOBALS['theme'] . $language, '');
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$vars['styles'] .= $vars['conditional_styles'];
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}
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}
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/**
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* Override or insert variables into the node templates.
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*
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* @param $vars
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* An array of variables to pass to the theme template.
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* @param $hook
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* The name of the template being rendered ("node" in this case.)
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*/
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function zen_preprocess_node(&$vars, $hook) {
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// Create the build_mode variable.
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switch ($vars['node']->build_mode) {
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case NODE_BUILD_NORMAL:
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if ($vars['node']->build_mode === NODE_BUILD_NORMAL) {
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$vars['build_mode'] = $vars['teaser'] ? 'teaser' : 'full';
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}
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else {
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$vars['build_mode'] = $vars['node']->build_mode;
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}
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break;
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case NODE_BUILD_PREVIEW:
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$vars['build_mode'] = 'preview';
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break;
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case NODE_BUILD_SEARCH_INDEX:
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$vars['build_mode'] = 'search_index';
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break;
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case NODE_BUILD_SEARCH_RESULT:
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$vars['build_mode'] = 'search_result';
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break;
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case NODE_BUILD_RSS:
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$vars['build_mode'] = 'rss';
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break;
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case NODE_BUILD_PRINT:
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$vars['build_mode'] = 'print';
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break;
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default:
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$vars['build_mode'] = $vars['node']->build_mode;
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}
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// Create the user_picture variable.
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$vars['user_picture'] = $vars['picture'];
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// Create the Drupal 7 $display_submitted variable.
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$vars['display_submitted'] = theme_get_setting('toggle_node_info_' . $vars['node']->type);
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// Special classes for nodes.
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// Class for node type: "node-type-page", "node-type-story", "node-type-my-custom-type", etc.
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$vars['classes_array'][] = drupal_html_class('node-type-' . $vars['type']);
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if ($vars['promote']) {
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$vars['classes_array'][] = 'node-promoted';
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}
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if ($vars['sticky']) {
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$vars['classes_array'][] = 'node-sticky';
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}
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if (!$vars['status']) {
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$vars['classes_array'][] = 'node-unpublished';
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$vars['unpublished'] = TRUE;
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}
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else {
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$vars['unpublished'] = FALSE;
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}
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if ($vars['uid'] && $vars['uid'] == $GLOBALS['user']->uid) {
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$vars['classes_array'][] = 'node-by-viewer'; // Node is authored by current user.
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}
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if ($vars['teaser']) {
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$vars['classes_array'][] = 'node-teaser'; // Node is displayed as teaser.
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}
|
|
if (isset($vars['preview'])) {
|
|
$vars['classes_array'][] = 'node-preview';
|
|
}
|
|
$vars['classes_array'][] = 'build-mode-' . $vars['build_mode'] ;
|
|
}
|
|
|
|
/**
|
|
* Override or insert variables into the comment templates.
|
|
*
|
|
* @param $vars
|
|
* An array of variables to pass to the theme template.
|
|
* @param $hook
|
|
* The name of the template being rendered ("comment" in this case.)
|
|
*/
|
|
function zen_preprocess_comment(&$vars, $hook) {
|
|
include_once './' . _zen_path() . '/zen-internals/template.comment.inc';
|
|
_zen_preprocess_comment($vars, $hook);
|
|
}
|
|
|
|
/**
|
|
* Preprocess variables for region.tpl.php
|
|
*
|
|
* Prepare the values passed to the theme_region function to be passed into a
|
|
* pluggable template engine.
|
|
*
|
|
* @see region.tpl.php
|
|
*/
|
|
function zen_preprocess_region(&$vars, $hook) {
|
|
// Create the $content variable that templates expect.
|
|
$vars['content'] = $vars['elements']['#children'];
|
|
$vars['region'] = $vars['elements']['#region'];
|
|
|
|
// Setup the default classes.
|
|
$vars['classes_array'] = array('region', 'region-' . str_replace('_', '-', $vars['region']));
|
|
|
|
// Sidebar regions get a couple extra classes.
|
|
if (strpos($vars['region'], 'sidebar_') === 0) {
|
|
$vars['classes_array'][] = 'column';
|
|
$vars['classes_array'][] = 'sidebar';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Override or insert variables into the block templates.
|
|
*
|
|
* @param $vars
|
|
* An array of variables to pass to the theme template.
|
|
* @param $hook
|
|
* The name of the template being rendered ("block" in this case.)
|
|
*/
|
|
function zen_preprocess_block(&$vars, $hook) {
|
|
$block = $vars['block'];
|
|
|
|
// Drupal 7 uses a $content variable instead of $block->content.
|
|
$vars['content'] = $block->content;
|
|
// Drupal 7 should use a $title variable instead of $block->subject.
|
|
$vars['title'] = $block->subject;
|
|
|
|
// Special classes for blocks.
|
|
$vars['classes_array'][] = 'block-' . $block->module;
|
|
// Classes describing the position of the block within the region.
|
|
if ($vars['block_id'] == 1) {
|
|
$vars['classes_array'][] = 'first';
|
|
}
|
|
if (!function_exists('context_blocks') && count(block_list($vars['block']->region)) == $vars['block_id']) {
|
|
$vars['classes_array'][] = 'last';
|
|
}
|
|
$vars['classes_array'][] = 'region-' . $vars['block_zebra'];
|
|
$vars['classes_array'][] = $vars['zebra'];
|
|
$vars['classes_array'][] = 'region-count-' . $vars['block_id'];
|
|
$vars['classes_array'][] = 'count-' . $vars['id'];
|
|
|
|
// Create the block ID.
|
|
$vars['block_html_id'] = 'block-' . $block->module . '-' . $block->delta;
|
|
|
|
$vars['edit_links_array'] = array();
|
|
if (theme_get_setting('zen_block_editing') && user_access('administer blocks')) {
|
|
include_once './' . _zen_path() . '/zen-internals/template.block-editing.inc';
|
|
zen_preprocess_block_editing($vars, $hook);
|
|
$vars['classes_array'][] = 'with-block-editing';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Override or insert variables into templates after preprocess functions have run.
|
|
*
|
|
* @param $vars
|
|
* An array of variables to pass to the theme template.
|
|
* @param $hook
|
|
* The name of the template being rendered.
|
|
*/
|
|
function zen_process(&$vars, $hook) {
|
|
// Don't clobber Views 3 classes.
|
|
if (array_key_exists('classes_array', $vars) && !array_key_exists('classes', $vars)) {
|
|
$vars['classes'] = implode(' ', $vars['classes_array']);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Override or insert variables into the block templates after preprocess functions have run.
|
|
*
|
|
* @param $vars
|
|
* An array of variables to pass to the theme template.
|
|
* @param $hook
|
|
* The name of the template being rendered ("block" in this case.)
|
|
*/
|
|
function zen_process_block(&$vars, $hook) {
|
|
$vars['edit_links'] = !empty($vars['edit_links_array']) ? '<div class="edit">' . implode(' ', $vars['edit_links_array']) . '</div>' : '';
|
|
}
|
|
|
|
if (!function_exists('drupal_html_class')) {
|
|
/**
|
|
* Prepare a string for use as a valid class name.
|
|
*
|
|
* Do not pass one string containing multiple classes as they will be
|
|
* incorrectly concatenated with dashes, i.e. "one two" will become "one-two".
|
|
*
|
|
* @param $class
|
|
* The class name to clean.
|
|
* @return
|
|
* The cleaned class name.
|
|
*/
|
|
function drupal_html_class($class) {
|
|
// By default, we filter using Drupal's coding standards.
|
|
$class = strtr(drupal_strtolower($class), array(' ' => '-', '_' => '-', '/' => '-', '[' => '-', ']' => ''));
|
|
|
|
// http://www.w3.org/TR/CSS21/syndata.html#characters shows the syntax for valid
|
|
// CSS identifiers (including element names, classes, and IDs in selectors.)
|
|
//
|
|
// Valid characters in a CSS identifier are:
|
|
// - the hyphen (U+002D)
|
|
// - a-z (U+0030 - U+0039)
|
|
// - A-Z (U+0041 - U+005A)
|
|
// - the underscore (U+005F)
|
|
// - 0-9 (U+0061 - U+007A)
|
|
// - ISO 10646 characters U+00A1 and higher
|
|
// We strip out any character not in the above list.
|
|
$class = preg_replace('/[^\x{002D}\x{0030}-\x{0039}\x{0041}-\x{005A}\x{005F}\x{0061}-\x{007A}\x{00A1}-\x{FFFF}]/u', '', $class);
|
|
|
|
return $class;
|
|
}
|
|
} /* End of drupal_html_class conditional definition. */
|
|
|
|
if (!function_exists('drupal_html_id')) {
|
|
/**
|
|
* Prepare a string for use as a valid HTML ID and guarantee uniqueness.
|
|
*
|
|
* @param $id
|
|
* The ID to clean.
|
|
* @return
|
|
* The cleaned ID.
|
|
*/
|
|
function drupal_html_id($id) {
|
|
$id = strtr(drupal_strtolower($id), array(' ' => '-', '_' => '-', '[' => '-', ']' => ''));
|
|
|
|
// As defined in http://www.w3.org/TR/html4/types.html#type-name, HTML IDs can
|
|
// only contain letters, digits ([0-9]), hyphens ("-"), underscores ("_"),
|
|
// colons (":"), and periods ("."). We strip out any character not in that
|
|
// list. Note that the CSS spec doesn't allow colons or periods in identifiers
|
|
// (http://www.w3.org/TR/CSS21/syndata.html#characters), so we strip those two
|
|
// characters as well.
|
|
$id = preg_replace('/[^A-Za-z0-9\-_]/', '', $id);
|
|
|
|
return $id;
|
|
}
|
|
} /* End of drupal_html_id conditional definition. */
|
|
|
|
/**
|
|
* Returns the path to the Zen theme.
|
|
*
|
|
* drupal_get_filename() is broken; see #341140. When that is fixed in Drupal 6,
|
|
* replace _zen_path() with drupal_get_path('theme', 'zen').
|
|
*/
|
|
function _zen_path() {
|
|
static $path = FALSE;
|
|
if (!$path) {
|
|
$matches = drupal_system_listing('zen\.info$', 'themes', 'name', 0);
|
|
if (!empty($matches['zen']->filename)) {
|
|
$path = dirname($matches['zen']->filename);
|
|
}
|
|
}
|
|
return $path;
|
|
}
|