3015 рядки
112 KiB
PHP
3015 рядки
112 KiB
PHP
<?php
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/**
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* @file
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* The theme system, which controls the output of Drupal.
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*
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* The theme system allows for nearly all output of the Drupal system to be
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* customized by user themes.
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*/
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/**
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* @defgroup content_flags Content markers
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* @{
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* Markers used by theme_mark() and node_mark() to designate content.
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* @see theme_mark(), node_mark()
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*/
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/**
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* Mark content as read.
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*/
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define('MARK_READ', 0);
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/**
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* Mark content as being new.
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*/
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define('MARK_NEW', 1);
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/**
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* Mark content as being updated.
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*/
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define('MARK_UPDATED', 2);
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/**
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* @} End of "Content markers".
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*/
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/**
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* Determines if a theme is available to use.
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*
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* @param $theme
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* Either the name of a theme or a full theme object.
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*
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* @return
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* Boolean TRUE if the theme is enabled or is the site administration theme;
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* FALSE otherwise.
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*/
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function drupal_theme_access($theme) {
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if (is_object($theme)) {
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return _drupal_theme_access($theme);
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}
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else {
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$themes = list_themes();
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return isset($themes[$theme]) && _drupal_theme_access($themes[$theme]);
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}
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}
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/**
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* Helper function for determining access to a theme.
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*
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* @see drupal_theme_access()
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*/
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function _drupal_theme_access($theme) {
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$admin_theme = variable_get('admin_theme');
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return !empty($theme->status) || ($admin_theme && $theme->name == $admin_theme);
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}
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/**
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* Initializes the theme system by loading the theme.
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*/
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function drupal_theme_initialize() {
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global $theme, $user, $theme_key;
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// If $theme is already set, assume the others are set, too, and do nothing
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if (isset($theme)) {
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return;
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}
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drupal_bootstrap(DRUPAL_BOOTSTRAP_DATABASE);
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$themes = list_themes();
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// Only select the user selected theme if it is available in the
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// list of themes that can be accessed.
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$theme = !empty($user->theme) && drupal_theme_access($user->theme) ? $user->theme : variable_get('theme_default', 'bartik');
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// Allow modules to override the theme. Validation has already been performed
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// inside menu_get_custom_theme(), so we do not need to check it again here.
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$custom_theme = menu_get_custom_theme();
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$theme = !empty($custom_theme) ? $custom_theme : $theme;
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// Store the identifier for retrieving theme settings with.
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$theme_key = $theme;
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// Find all our ancestor themes and put them in an array.
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$base_theme = array();
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$ancestor = $theme;
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while ($ancestor && isset($themes[$ancestor]->base_theme)) {
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$ancestor = $themes[$ancestor]->base_theme;
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$base_theme[] = $themes[$ancestor];
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}
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_drupal_theme_initialize($themes[$theme], array_reverse($base_theme));
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// Themes can have alter functions, so reset the drupal_alter() cache.
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drupal_static_reset('drupal_alter');
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// Provide the page with information about the theme that's used, so that a
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// later Ajax request can be rendered using the same theme.
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// @see ajax_base_page_theme()
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$setting['ajaxPageState'] = array(
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'theme' => $theme_key,
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'theme_token' => drupal_get_token($theme_key),
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);
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drupal_add_js($setting, 'setting');
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}
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/**
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* Initializes the theme system given already loaded information.
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*
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* This function is useful to initialize a theme when no database is present.
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*
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* @param $theme
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* An object with the following information:
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* filename
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* The .info file for this theme. The 'path' to
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* the theme will be in this file's directory. (Required)
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* owner
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* The path to the .theme file or the .engine file to load for
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* the theme. (Required)
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* stylesheet
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* The primary stylesheet for the theme. (Optional)
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* engine
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* The name of theme engine to use. (Optional)
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* @param $base_theme
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* An optional array of objects that represent the 'base theme' if the
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* theme is meant to be derivative of another theme. It requires
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* the same information as the $theme object. It should be in
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* 'oldest first' order, meaning the top level of the chain will
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* be first.
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* @param $registry_callback
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* The callback to invoke to set the theme registry.
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*/
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function _drupal_theme_initialize($theme, $base_theme = array(), $registry_callback = '_theme_load_registry') {
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global $theme_info, $base_theme_info, $theme_engine, $theme_path;
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$theme_info = $theme;
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$base_theme_info = $base_theme;
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$theme_path = dirname($theme->filename);
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// Prepare stylesheets from this theme as well as all ancestor themes.
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// We work it this way so that we can have child themes override parent
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// theme stylesheets easily.
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$final_stylesheets = array();
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// Grab stylesheets from base theme
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foreach ($base_theme as $base) {
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if (!empty($base->stylesheets)) {
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foreach ($base->stylesheets as $media => $stylesheets) {
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foreach ($stylesheets as $name => $stylesheet) {
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$final_stylesheets[$media][$name] = $stylesheet;
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}
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}
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}
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}
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// Add stylesheets used by this theme.
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if (!empty($theme->stylesheets)) {
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foreach ($theme->stylesheets as $media => $stylesheets) {
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foreach ($stylesheets as $name => $stylesheet) {
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$final_stylesheets[$media][$name] = $stylesheet;
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}
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}
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}
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// And now add the stylesheets properly
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foreach ($final_stylesheets as $media => $stylesheets) {
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foreach ($stylesheets as $stylesheet) {
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drupal_add_css($stylesheet, array('group' => CSS_THEME, 'every_page' => TRUE, 'media' => $media));
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}
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}
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// Do basically the same as the above for scripts
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$final_scripts = array();
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// Grab scripts from base theme
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foreach ($base_theme as $base) {
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if (!empty($base->scripts)) {
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foreach ($base->scripts as $name => $script) {
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$final_scripts[$name] = $script;
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}
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}
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}
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// Add scripts used by this theme.
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if (!empty($theme->scripts)) {
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foreach ($theme->scripts as $name => $script) {
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$final_scripts[$name] = $script;
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}
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}
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// Add scripts used by this theme.
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foreach ($final_scripts as $script) {
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drupal_add_js($script, array('group' => JS_THEME, 'every_page' => TRUE));
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}
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$theme_engine = NULL;
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// Initialize the theme.
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if (isset($theme->engine)) {
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// Include the engine.
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include_once DRUPAL_ROOT . '/' . $theme->owner;
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$theme_engine = $theme->engine;
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if (function_exists($theme_engine . '_init')) {
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foreach ($base_theme as $base) {
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call_user_func($theme_engine . '_init', $base);
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}
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call_user_func($theme_engine . '_init', $theme);
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}
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}
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else {
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// include non-engine theme files
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foreach ($base_theme as $base) {
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// Include the theme file or the engine.
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if (!empty($base->owner)) {
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include_once DRUPAL_ROOT . '/' . $base->owner;
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}
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}
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// and our theme gets one too.
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if (!empty($theme->owner)) {
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include_once DRUPAL_ROOT . '/' . $theme->owner;
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}
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}
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if (isset($registry_callback)) {
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_theme_registry_callback($registry_callback, array($theme, $base_theme, $theme_engine));
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}
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}
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/**
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* Gets the theme registry.
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*
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* @param $complete
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* Optional boolean to indicate whether to return the complete theme registry
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* array or an instance of the ThemeRegistry class. If TRUE, the complete
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* theme registry array will be returned. This is useful if you want to
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* foreach over the whole registry, use array_* functions or inspect it in a
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* debugger. If FALSE, an instance of the ThemeRegistry class will be
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* returned, this provides an ArrayObject which allows it to be accessed
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* with array syntax and isset(), and should be more lightweight
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* than the full registry. Defaults to TRUE.
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*
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* @return
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* The complete theme registry array, or an instance of the ThemeRegistry
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* class.
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*/
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function theme_get_registry($complete = TRUE) {
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// Use the advanced drupal_static() pattern, since this is called very often.
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static $drupal_static_fast;
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if (!isset($drupal_static_fast)) {
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$drupal_static_fast['registry'] = &drupal_static('theme_get_registry');
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}
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$theme_registry = &$drupal_static_fast['registry'];
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// Initialize the theme, if this is called early in the bootstrap, or after
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// static variables have been reset.
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if (!is_array($theme_registry)) {
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drupal_theme_initialize();
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$theme_registry = array();
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}
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$key = (int) $complete;
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if (!isset($theme_registry[$key])) {
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list($callback, $arguments) = _theme_registry_callback();
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if (!$complete) {
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$arguments[] = FALSE;
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}
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$theme_registry[$key] = call_user_func_array($callback, $arguments);
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}
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return $theme_registry[$key];
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}
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/**
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* Sets the callback that will be used by theme_get_registry().
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*
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* @param $callback
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* The name of the callback function.
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* @param $arguments
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* The arguments to pass to the function.
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*/
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function _theme_registry_callback($callback = NULL, array $arguments = array()) {
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static $stored;
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if (isset($callback)) {
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$stored = array($callback, $arguments);
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}
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return $stored;
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}
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/**
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* Gets the theme_registry cache; if it doesn't exist, builds it.
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*
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* @param $theme
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* The loaded $theme object as returned by list_themes().
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* @param $base_theme
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* An array of loaded $theme objects representing the ancestor themes in
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* oldest first order.
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* @param $theme_engine
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* The name of the theme engine.
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* @param $complete
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* Whether to load the complete theme registry or an instance of the
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* ThemeRegistry class.
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*
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* @return
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* The theme registry array, or an instance of the ThemeRegistry class.
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*/
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function _theme_load_registry($theme, $base_theme = NULL, $theme_engine = NULL, $complete = TRUE) {
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if ($complete) {
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// Check the theme registry cache; if it exists, use it.
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$cached = cache_get("theme_registry:$theme->name");
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if (isset($cached->data)) {
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$registry = $cached->data;
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}
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else {
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// If not, build one and cache it.
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$registry = _theme_build_registry($theme, $base_theme, $theme_engine);
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// Only persist this registry if all modules are loaded. This assures a
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// complete set of theme hooks.
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if (module_load_all(NULL)) {
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_theme_save_registry($theme, $registry);
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}
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}
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return $registry;
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}
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else {
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return new ThemeRegistry('theme_registry:runtime:' . $theme->name, 'cache');
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}
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}
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/**
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* Writes the theme_registry cache into the database.
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*/
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function _theme_save_registry($theme, $registry) {
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cache_set("theme_registry:$theme->name", $registry);
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}
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/**
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* Forces the system to rebuild the theme registry.
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*
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* This function should be called when modules are added to the system, or when
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* a dynamic system needs to add more theme hooks.
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*/
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function drupal_theme_rebuild() {
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drupal_static_reset('theme_get_registry');
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cache_clear_all('theme_registry', 'cache', TRUE);
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}
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/**
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* Builds the run-time theme registry.
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*
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* Extends DrupalCacheArray to allow the theme registry to be accessed as a
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* complete registry, while internally caching only the parts of the registry
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* that are actually in use on the site. On cache misses the complete
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* theme registry is loaded and used to update the run-time cache.
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*/
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class ThemeRegistry Extends DrupalCacheArray {
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/**
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* Whether the partial registry can be persisted to the cache.
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*
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* This is only allowed if all modules and the request method is GET. theme()
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* should be very rarely called on POST requests and this avoids polluting
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* the runtime cache.
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*/
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protected $persistable;
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/**
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* The complete theme registry array.
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*/
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protected $completeRegistry;
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function __construct($cid, $bin) {
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$this->cid = $cid;
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$this->bin = $bin;
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$this->persistable = module_load_all(NULL) && $_SERVER['REQUEST_METHOD'] == 'GET';
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$data = array();
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if ($this->persistable && $cached = cache_get($this->cid, $this->bin)) {
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$data = $cached->data;
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}
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else {
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// If there is no runtime cache stored, fetch the full theme registry,
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// but then initialize each value to NULL. This allows offsetExists()
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// to function correctly on non-registered theme hooks without triggering
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// a call to resolveCacheMiss().
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$data = $this->initializeRegistry();
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if ($this->persistable) {
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$this->set($data);
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}
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}
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$this->storage = $data;
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}
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/**
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* Initializes the full theme registry.
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*
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* @return
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* An array with the keys of the full theme registry, but the values
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* initialized to NULL.
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*/
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function initializeRegistry() {
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$this->completeRegistry = theme_get_registry();
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return array_fill_keys(array_keys($this->completeRegistry), NULL);
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}
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public function offsetExists($offset) {
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// Since the theme registry allows for theme hooks to be requested that
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// are not registered, just check the existence of the key in the registry.
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// Use array_key_exists() here since a NULL value indicates that the theme
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// hook exists but has not yet been requested.
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return array_key_exists($offset, $this->storage);
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}
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public function offsetGet($offset) {
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// If the offset is set but empty, it is a registered theme hook that has
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// not yet been requested. Offsets that do not exist at all were not
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// registered in hook_theme().
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if (isset($this->storage[$offset])) {
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return $this->storage[$offset];
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}
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elseif (array_key_exists($offset, $this->storage)) {
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return $this->resolveCacheMiss($offset);
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}
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}
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public function resolveCacheMiss($offset) {
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if (!isset($this->completeRegistry)) {
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$this->completeRegistry = theme_get_registry();
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}
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$this->storage[$offset] = $this->completeRegistry[$offset];
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if ($this->persistable) {
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$this->persist($offset);
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}
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return $this->storage[$offset];
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}
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public function set($data, $lock = TRUE) {
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$lock_name = $this->cid . ':' . $this->bin;
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if (!$lock || lock_acquire($lock_name)) {
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if ($cached = cache_get($this->cid, $this->bin)) {
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// Use array merge instead of union so that filled in values in $data
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// overwrite empty values in the current cache.
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$data = array_merge($cached->data, $data);
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}
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else {
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$registry = $this->initializeRegistry();
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$data = array_merge($registry, $data);
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}
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cache_set($this->cid, $data, $this->bin);
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if ($lock) {
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lock_release($lock_name);
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}
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}
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}
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}
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/**
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* Process a single implementation of hook_theme().
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*
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* @param $cache
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* The theme registry that will eventually be cached; It is an associative
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* array keyed by theme hooks, whose values are associative arrays describing
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* the hook:
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* - 'type': The passed-in $type.
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* - 'theme path': The passed-in $path.
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* - 'function': The name of the function generating output for this theme
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* hook. Either defined explicitly in hook_theme() or, if neither 'function'
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* nor 'template' is defined, then the default theme function name is used.
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* The default theme function name is the theme hook prefixed by either
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* 'theme_' for modules or '$name_' for everything else. If 'function' is
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* defined, 'template' is not used.
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* - 'template': The filename of the template generating output for this
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* theme hook. The template is in the directory defined by the 'path' key of
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* hook_theme() or defaults to $path.
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* - 'variables': The variables for this theme hook as defined in
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* hook_theme(). If there is more than one implementation and 'variables' is
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* not specified in a later one, then the previous definition is kept.
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* - 'render element': The renderable element for this theme hook as defined
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* in hook_theme(). If there is more than one implementation and
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* 'render element' is not specified in a later one, then the previous
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* definition is kept.
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* - 'preprocess functions': See theme() for detailed documentation.
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* - 'process functions': See theme() for detailed documentation.
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* @param $name
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* The name of the module, theme engine, base theme engine, theme or base
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* theme implementing hook_theme().
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* @param $type
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* One of 'module', 'theme_engine', 'base_theme_engine', 'theme', or
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* 'base_theme'. Unlike regular hooks that can only be implemented by modules,
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* each of these can implement hook_theme(). _theme_process_registry() is
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* called in aforementioned order and new entries override older ones. For
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* example, if a theme hook is both defined by a module and a theme, then the
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* definition in the theme will be used.
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* @param $theme
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* The loaded $theme object as returned from list_themes().
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* @param $path
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* The directory where $name is. For example, modules/system or
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* themes/bartik.
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*
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* @see theme()
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* @see _theme_build_registry()
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* @see hook_theme()
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* @see list_themes()
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*/
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function _theme_process_registry(&$cache, $name, $type, $theme, $path) {
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$result = array();
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// Processor functions work in two distinct phases with the process
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// functions always being executed after the preprocess functions.
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$variable_process_phases = array(
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'preprocess functions' => 'preprocess',
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'process functions' => 'process',
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);
|
|
|
|
$hook_defaults = array(
|
|
'variables' => TRUE,
|
|
'render element' => TRUE,
|
|
'pattern' => TRUE,
|
|
'base hook' => TRUE,
|
|
);
|
|
|
|
// Invoke the hook_theme() implementation, process what is returned, and
|
|
// merge it into $cache.
|
|
$function = $name . '_theme';
|
|
if (function_exists($function)) {
|
|
$result = $function($cache, $type, $theme, $path);
|
|
foreach ($result as $hook => $info) {
|
|
// When a theme or engine overrides a module's theme function
|
|
// $result[$hook] will only contain key/value pairs for information being
|
|
// overridden. Pull the rest of the information from what was defined by
|
|
// an earlier hook.
|
|
|
|
// Fill in the type and path of the module, theme, or engine that
|
|
// implements this theme function.
|
|
$result[$hook]['type'] = $type;
|
|
$result[$hook]['theme path'] = $path;
|
|
|
|
// If function and file are omitted, default to standard naming
|
|
// conventions.
|
|
if (!isset($info['template']) && !isset($info['function'])) {
|
|
$result[$hook]['function'] = ($type == 'module' ? 'theme_' : $name . '_') . $hook;
|
|
}
|
|
|
|
if (isset($cache[$hook]['includes'])) {
|
|
$result[$hook]['includes'] = $cache[$hook]['includes'];
|
|
}
|
|
|
|
// If the theme implementation defines a file, then also use the path
|
|
// that it defined. Otherwise use the default path. This allows
|
|
// system.module to declare theme functions on behalf of core .include
|
|
// files.
|
|
if (isset($info['file'])) {
|
|
$include_file = isset($info['path']) ? $info['path'] : $path;
|
|
$include_file .= '/' . $info['file'];
|
|
include_once DRUPAL_ROOT . '/' . $include_file;
|
|
$result[$hook]['includes'][] = $include_file;
|
|
}
|
|
|
|
// If the default keys are not set, use the default values registered
|
|
// by the module.
|
|
if (isset($cache[$hook])) {
|
|
$result[$hook] += array_intersect_key($cache[$hook], $hook_defaults);
|
|
}
|
|
|
|
// The following apply only to theming hooks implemented as templates.
|
|
if (isset($info['template'])) {
|
|
// Prepend the current theming path when none is set.
|
|
if (!isset($info['path'])) {
|
|
$result[$hook]['template'] = $path . '/' . $info['template'];
|
|
}
|
|
}
|
|
|
|
// Allow variable processors for all theming hooks, whether the hook is
|
|
// implemented as a template or as a function.
|
|
foreach ($variable_process_phases as $phase_key => $phase) {
|
|
// Check for existing variable processors. Ensure arrayness.
|
|
if (!isset($info[$phase_key]) || !is_array($info[$phase_key])) {
|
|
$info[$phase_key] = array();
|
|
$prefixes = array();
|
|
if ($type == 'module') {
|
|
// Default variable processor prefix.
|
|
$prefixes[] = 'template';
|
|
// Add all modules so they can intervene with their own variable
|
|
// processors. This allows them to provide variable processors even
|
|
// if they are not the owner of the current hook.
|
|
$prefixes += module_list();
|
|
}
|
|
elseif ($type == 'theme_engine' || $type == 'base_theme_engine') {
|
|
// Theme engines get an extra set that come before the normally
|
|
// named variable processors.
|
|
$prefixes[] = $name . '_engine';
|
|
// The theme engine registers on behalf of the theme using the
|
|
// theme's name.
|
|
$prefixes[] = $theme;
|
|
}
|
|
else {
|
|
// This applies when the theme manually registers their own variable
|
|
// processors.
|
|
$prefixes[] = $name;
|
|
}
|
|
foreach ($prefixes as $prefix) {
|
|
// Only use non-hook-specific variable processors for theming hooks
|
|
// implemented as templates. See theme().
|
|
if (isset($info['template']) && function_exists($prefix . '_' . $phase)) {
|
|
$info[$phase_key][] = $prefix . '_' . $phase;
|
|
}
|
|
if (function_exists($prefix . '_' . $phase . '_' . $hook)) {
|
|
$info[$phase_key][] = $prefix . '_' . $phase . '_' . $hook;
|
|
}
|
|
}
|
|
}
|
|
// Check for the override flag and prevent the cached variable
|
|
// processors from being used. This allows themes or theme engines to
|
|
// remove variable processors set earlier in the registry build.
|
|
if (!empty($info['override ' . $phase_key])) {
|
|
// Flag not needed inside the registry.
|
|
unset($result[$hook]['override ' . $phase_key]);
|
|
}
|
|
elseif (isset($cache[$hook][$phase_key]) && is_array($cache[$hook][$phase_key])) {
|
|
$info[$phase_key] = array_merge($cache[$hook][$phase_key], $info[$phase_key]);
|
|
}
|
|
$result[$hook][$phase_key] = $info[$phase_key];
|
|
}
|
|
}
|
|
|
|
// Merge the newly created theme hooks into the existing cache.
|
|
$cache = $result + $cache;
|
|
}
|
|
|
|
// Let themes have variable processors even if they didn't register a
|
|
// template.
|
|
if ($type == 'theme' || $type == 'base_theme') {
|
|
foreach ($cache as $hook => $info) {
|
|
// Check only if not registered by the theme or engine.
|
|
if (empty($result[$hook])) {
|
|
foreach ($variable_process_phases as $phase_key => $phase) {
|
|
if (!isset($info[$phase_key])) {
|
|
$cache[$hook][$phase_key] = array();
|
|
}
|
|
// Only use non-hook-specific variable processors for theming hooks
|
|
// implemented as templates. See theme().
|
|
if (isset($info['template']) && function_exists($name . '_' . $phase)) {
|
|
$cache[$hook][$phase_key][] = $name . '_' . $phase;
|
|
}
|
|
if (function_exists($name . '_' . $phase . '_' . $hook)) {
|
|
$cache[$hook][$phase_key][] = $name . '_' . $phase . '_' . $hook;
|
|
$cache[$hook]['theme path'] = $path;
|
|
}
|
|
// Ensure uniqueness.
|
|
$cache[$hook][$phase_key] = array_unique($cache[$hook][$phase_key]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Builds the theme registry cache.
|
|
*
|
|
* @param $theme
|
|
* The loaded $theme object as returned by list_themes().
|
|
* @param $base_theme
|
|
* An array of loaded $theme objects representing the ancestor themes in
|
|
* oldest first order.
|
|
* @param $theme_engine
|
|
* The name of the theme engine.
|
|
*/
|
|
function _theme_build_registry($theme, $base_theme, $theme_engine) {
|
|
$cache = array();
|
|
// First, process the theme hooks advertised by modules. This will
|
|
// serve as the basic registry. Since the list of enabled modules is the same
|
|
// regardless of the theme used, this is cached in its own entry to save
|
|
// building it for every theme.
|
|
if ($cached = cache_get('theme_registry:build:modules')) {
|
|
$cache = $cached->data;
|
|
}
|
|
else {
|
|
foreach (module_implements('theme') as $module) {
|
|
_theme_process_registry($cache, $module, 'module', $module, drupal_get_path('module', $module));
|
|
}
|
|
// Only cache this registry if all modules are loaded.
|
|
if (module_load_all(NULL)) {
|
|
cache_set('theme_registry:build:modules', $cache);
|
|
}
|
|
}
|
|
|
|
// Process each base theme.
|
|
foreach ($base_theme as $base) {
|
|
// If the base theme uses a theme engine, process its hooks.
|
|
$base_path = dirname($base->filename);
|
|
if ($theme_engine) {
|
|
_theme_process_registry($cache, $theme_engine, 'base_theme_engine', $base->name, $base_path);
|
|
}
|
|
_theme_process_registry($cache, $base->name, 'base_theme', $base->name, $base_path);
|
|
}
|
|
|
|
// And then the same thing, but for the theme.
|
|
if ($theme_engine) {
|
|
_theme_process_registry($cache, $theme_engine, 'theme_engine', $theme->name, dirname($theme->filename));
|
|
}
|
|
|
|
// Finally, hooks provided by the theme itself.
|
|
_theme_process_registry($cache, $theme->name, 'theme', $theme->name, dirname($theme->filename));
|
|
|
|
// Let modules alter the registry.
|
|
drupal_alter('theme_registry', $cache);
|
|
|
|
// Optimize the registry to not have empty arrays for functions.
|
|
foreach ($cache as $hook => $info) {
|
|
foreach (array('preprocess functions', 'process functions') as $phase) {
|
|
if (empty($info[$phase])) {
|
|
unset($cache[$hook][$phase]);
|
|
}
|
|
}
|
|
}
|
|
return $cache;
|
|
}
|
|
|
|
/**
|
|
* Returns a list of all currently available themes.
|
|
*
|
|
* Retrieved from the database, if available and the site is not in maintenance
|
|
* mode; otherwise compiled freshly from the filesystem.
|
|
*
|
|
* @param $refresh
|
|
* Whether to reload the list of themes from the database. Defaults to FALSE.
|
|
*
|
|
* @return
|
|
* An associative array of the currently available themes. The keys are the
|
|
* themes' machine names and the values are objects having the following
|
|
* properties:
|
|
* - filename: The filepath and name of the .info file.
|
|
* - name: The machine name of the theme.
|
|
* - status: 1 for enabled, 0 for disabled themes.
|
|
* - info: The contents of the .info file.
|
|
* - stylesheets: A two dimensional array, using the first key for the
|
|
* media attribute (e.g. 'all'), the second for the name of the file
|
|
* (e.g. style.css). The value is a complete filepath (e.g.
|
|
* themes/bartik/style.css). Not set if no stylesheets are defined in the
|
|
* .info file.
|
|
* - scripts: An associative array of JavaScripts, using the filename as key
|
|
* and the complete filepath as value. Not set if no scripts are defined in
|
|
* the .info file.
|
|
* - prefix: The base theme engine prefix.
|
|
* - engine: The machine name of the theme engine.
|
|
* - base_theme: If this is a sub-theme, the machine name of the base theme
|
|
* defined in the .info file. Otherwise, the element is not set.
|
|
* - base_themes: If this is a sub-theme, an associative array of the
|
|
* base-theme ancestors of this theme, starting with this theme's base
|
|
* theme, then the base theme's own base theme, etc. Each entry has an
|
|
* array key equal to the theme's machine name, and a value equal to the
|
|
* human-readable theme name; if a theme with matching machine name does
|
|
* not exist in the system, the value will instead be NULL (and since the
|
|
* system would not know whether that theme itself has a base theme, that
|
|
* will end the array of base themes). This is not set if the theme is not
|
|
* a sub-theme.
|
|
* - sub_themes: An associative array of themes on the system that are
|
|
* either direct sub-themes (that is, they declare this theme to be
|
|
* their base theme), direct sub-themes of sub-themes, etc. The keys are
|
|
* the themes' machine names, and the values are the themes' human-readable
|
|
* names. This element is not set if there are no themes on the system that
|
|
* declare this theme as their base theme.
|
|
*/
|
|
function list_themes($refresh = FALSE) {
|
|
$list = &drupal_static(__FUNCTION__, array());
|
|
|
|
if ($refresh) {
|
|
$list = array();
|
|
system_list_reset();
|
|
}
|
|
|
|
if (empty($list)) {
|
|
$list = array();
|
|
$themes = array();
|
|
// Extract from the database only when it is available.
|
|
// Also check that the site is not in the middle of an install or update.
|
|
if (!defined('MAINTENANCE_MODE')) {
|
|
try {
|
|
$themes = system_list('theme');
|
|
}
|
|
catch (Exception $e) {
|
|
// If the database is not available, rebuild the theme data.
|
|
$themes = _system_rebuild_theme_data();
|
|
}
|
|
}
|
|
else {
|
|
// Scan the installation when the database should not be read.
|
|
$themes = _system_rebuild_theme_data();
|
|
}
|
|
|
|
foreach ($themes as $theme) {
|
|
foreach ($theme->info['stylesheets'] as $media => $stylesheets) {
|
|
foreach ($stylesheets as $stylesheet => $path) {
|
|
$theme->stylesheets[$media][$stylesheet] = $path;
|
|
}
|
|
}
|
|
foreach ($theme->info['scripts'] as $script => $path) {
|
|
$theme->scripts[$script] = $path;
|
|
}
|
|
if (isset($theme->info['engine'])) {
|
|
$theme->engine = $theme->info['engine'];
|
|
}
|
|
if (isset($theme->info['base theme'])) {
|
|
$theme->base_theme = $theme->info['base theme'];
|
|
}
|
|
// Status is normally retrieved from the database. Add zero values when
|
|
// read from the installation directory to prevent notices.
|
|
if (!isset($theme->status)) {
|
|
$theme->status = 0;
|
|
}
|
|
$list[$theme->name] = $theme;
|
|
}
|
|
}
|
|
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* Find all the base themes for the specified theme.
|
|
*
|
|
* Themes can inherit templates and function implementations from earlier themes.
|
|
*
|
|
* @param $themes
|
|
* An array of available themes.
|
|
* @param $key
|
|
* The name of the theme whose base we are looking for.
|
|
* @param $used_keys
|
|
* A recursion parameter preventing endless loops.
|
|
* @return
|
|
* Returns an array of all of the theme's ancestors; the first element's value
|
|
* will be NULL if an error occurred.
|
|
*/
|
|
function drupal_find_base_themes($themes, $key, $used_keys = array()) {
|
|
$base_key = $themes[$key]->info['base theme'];
|
|
// Does the base theme exist?
|
|
if (!isset($themes[$base_key])) {
|
|
return array($base_key => NULL);
|
|
}
|
|
|
|
$current_base_theme = array($base_key => $themes[$base_key]->info['name']);
|
|
|
|
// Is the base theme itself a child of another theme?
|
|
if (isset($themes[$base_key]->info['base theme'])) {
|
|
// Do we already know the base themes of this theme?
|
|
if (isset($themes[$base_key]->base_themes)) {
|
|
return $themes[$base_key]->base_themes + $current_base_theme;
|
|
}
|
|
// Prevent loops.
|
|
if (!empty($used_keys[$base_key])) {
|
|
return array($base_key => NULL);
|
|
}
|
|
$used_keys[$base_key] = TRUE;
|
|
return drupal_find_base_themes($themes, $base_key, $used_keys) + $current_base_theme;
|
|
}
|
|
// If we get here, then this is our parent theme.
|
|
return $current_base_theme;
|
|
}
|
|
|
|
/**
|
|
* Generates themed output.
|
|
*
|
|
* All requests for themed output must go through this function (however,
|
|
* calling the theme() function directly is strongly discouraged - see next
|
|
* paragraph). It examines the request and routes it to the appropriate
|
|
* @link themeable theme function or template @endlink, by checking the theme
|
|
* registry.
|
|
*
|
|
* Avoid calling this function directly. It is preferable to replace direct
|
|
* calls to the theme() function with calls to drupal_render() by passing a
|
|
* render array with a #theme key to drupal_render(), which in turn calls
|
|
* theme().
|
|
*
|
|
* @section sec_theme_hooks Theme Hooks
|
|
* Most commonly, the first argument to this function is the name of the theme
|
|
* hook. For instance, to theme a taxonomy term, the theme hook name is
|
|
* 'taxonomy_term'. Modules register theme hooks within a hook_theme()
|
|
* implementation and provide a default implementation via a function named
|
|
* theme_HOOK() (e.g., theme_taxonomy_term()) or via a template file named
|
|
* according to the value of the 'template' key registered with the theme hook
|
|
* (see hook_theme() for details). Default templates are implemented with the
|
|
* PHPTemplate rendering engine and are named the same as the theme hook, with
|
|
* underscores changed to hyphens, so for the 'taxonomy_term' theme hook, the
|
|
* default template is 'taxonomy-term.tpl.php'.
|
|
*
|
|
* @subsection sub_overriding_theme_hooks Overriding Theme Hooks
|
|
* Themes may also register new theme hooks within a hook_theme()
|
|
* implementation, but it is more common for themes to override default
|
|
* implementations provided by modules than to register entirely new theme
|
|
* hooks. Themes can override a default implementation by implementing a
|
|
* function named THEME_HOOK() (for example, the 'bartik' theme overrides the
|
|
* default implementation of the 'menu_tree' theme hook by implementing a
|
|
* bartik_menu_tree() function), or by adding a template file within its folder
|
|
* structure that follows the template naming structure used by the theme's
|
|
* rendering engine (for example, since the Bartik theme uses the PHPTemplate
|
|
* rendering engine, it overrides the default implementation of the 'page' theme
|
|
* hook by containing a 'page.tpl.php' file within its folder structure).
|
|
*
|
|
* @subsection sub_preprocess_templates Preprocessing for Template Files
|
|
* If the implementation is a template file, several functions are called
|
|
* before the template file is invoked, to modify the $variables array. These
|
|
* fall into the "preprocessing" phase and the "processing" phase, and are
|
|
* executed (if they exist), in the following order (note that in the following
|
|
* list, HOOK indicates the theme hook name, MODULE indicates a module name,
|
|
* THEME indicates a theme name, and ENGINE indicates a theme engine name):
|
|
* - template_preprocess(&$variables, $hook): Creates a default set of
|
|
* variables for all theme hooks with template implementations.
|
|
* - template_preprocess_HOOK(&$variables): Should be implemented by the module
|
|
* that registers the theme hook, to set up default variables.
|
|
* - MODULE_preprocess(&$variables, $hook): hook_preprocess() is invoked on all
|
|
* implementing modules.
|
|
* - MODULE_preprocess_HOOK(&$variables): hook_preprocess_HOOK() is invoked on
|
|
* all implementing modules, so that modules that didn't define the theme
|
|
* hook can alter the variables.
|
|
* - ENGINE_engine_preprocess(&$variables, $hook): Allows the theme engine to
|
|
* set necessary variables for all theme hooks with template implementations.
|
|
* - ENGINE_engine_preprocess_HOOK(&$variables): Allows the theme engine to set
|
|
* necessary variables for the particular theme hook.
|
|
* - THEME_preprocess(&$variables, $hook): Allows the theme to set necessary
|
|
* variables for all theme hooks with template implementations.
|
|
* - THEME_preprocess_HOOK(&$variables): Allows the theme to set necessary
|
|
* variables specific to the particular theme hook.
|
|
* - template_process(&$variables, $hook): Creates an additional set of default
|
|
* variables for all theme hooks with template implementations. The variables
|
|
* created in this function are derived from ones created by
|
|
* template_preprocess(), but potentially altered by the other preprocess
|
|
* functions listed above. For example, any preprocess function can add to or
|
|
* modify the $variables['attributes_array'] variable, and after all of them
|
|
* have finished executing, template_process() flattens it into a
|
|
* $variables['attributes'] string for convenient use by templates.
|
|
* - template_process_HOOK(&$variables): Should be implemented by the module
|
|
* that registers the theme hook, if it needs to perform additional variable
|
|
* processing after all preprocess functions have finished.
|
|
* - MODULE_process(&$variables, $hook): hook_process() is invoked on all
|
|
* implementing modules.
|
|
* - MODULE_process_HOOK(&$variables): hook_process_HOOK() is invoked on
|
|
* on all implementing modules, so that modules that didn't define the theme
|
|
* hook can alter the variables.
|
|
* - ENGINE_engine_process(&$variables, $hook): Allows the theme engine to
|
|
* process variables for all theme hooks with template implementations.
|
|
* - ENGINE_engine_process_HOOK(&$variables): Allows the theme engine to process
|
|
* the variables specific to the theme hook.
|
|
* - THEME_process(&$variables, $hook): Allows the theme to process the
|
|
* variables for all theme hooks with template implementations.
|
|
* - THEME_process_HOOK(&$variables): Allows the theme to process the
|
|
* variables specific to the theme hook.
|
|
*
|
|
* @subsection sub_preprocess_theme_funcs Preprocessing for Theme Functions
|
|
* If the implementation is a function, only the theme-hook-specific preprocess
|
|
* and process functions (the ones ending in _HOOK) are called from the
|
|
* list above. This is because theme hooks with function implementations
|
|
* need to be fast, and calling the non-theme-hook-specific preprocess and
|
|
* process functions for them would incur a noticeable performance penalty.
|
|
*
|
|
* @subsection sub_alternate_suggestions Suggesting Alternate Hooks
|
|
* There are two special variables that these preprocess and process functions
|
|
* can set: 'theme_hook_suggestion' and 'theme_hook_suggestions'. These will be
|
|
* merged together to form a list of 'suggested' alternate theme hooks to use,
|
|
* in reverse order of priority. theme_hook_suggestion will always be a higher
|
|
* priority than items in theme_hook_suggestions. theme() will use the
|
|
* highest priority implementation that exists. If none exists, theme() will
|
|
* use the implementation for the theme hook it was called with. These
|
|
* suggestions are similar to and are used for similar reasons as calling
|
|
* theme() with an array as the $hook parameter (see below). The difference
|
|
* is whether the suggestions are determined by the code that calls theme() or
|
|
* by a preprocess or process function.
|
|
*
|
|
* @param $hook
|
|
* The name of the theme hook to call. If the name contains a
|
|
* double-underscore ('__') and there isn't an implementation for the full
|
|
* name, the part before the '__' is checked. This allows a fallback to a
|
|
* more generic implementation. For example, if theme('links__node', ...) is
|
|
* called, but there is no implementation of that theme hook, then the
|
|
* 'links' implementation is used. This process is iterative, so if
|
|
* theme('links__contextual__node', ...) is called, theme() checks for the
|
|
* following implementations, and uses the first one that exists:
|
|
* - links__contextual__node
|
|
* - links__contextual
|
|
* - links
|
|
* This allows themes to create specific theme implementations for named
|
|
* objects and contexts of otherwise generic theme hooks. The $hook parameter
|
|
* may also be an array, in which case the first theme hook that has an
|
|
* implementation is used. This allows for the code that calls theme() to
|
|
* explicitly specify the fallback order in a situation where using the '__'
|
|
* convention is not desired or is insufficient.
|
|
* @param $variables
|
|
* An associative array of variables to merge with defaults from the theme
|
|
* registry, pass to preprocess and process functions for modification, and
|
|
* finally, pass to the function or template implementing the theme hook.
|
|
* Alternatively, this can be a renderable array, in which case, its
|
|
* properties are mapped to variables expected by the theme hook
|
|
* implementations.
|
|
*
|
|
* @return
|
|
* An HTML string representing the themed output.
|
|
*
|
|
* @see drupal_render()
|
|
* @see themeable
|
|
* @see hook_theme()
|
|
* @see template_preprocess()
|
|
* @see template_process()
|
|
*/
|
|
function theme($hook, $variables = array()) {
|
|
// If called before all modules are loaded, we do not necessarily have a full
|
|
// theme registry to work with, and therefore cannot process the theme
|
|
// request properly. See also _theme_load_registry().
|
|
if (!module_load_all(NULL) && !defined('MAINTENANCE_MODE')) {
|
|
throw new Exception(t('theme() may not be called until all modules are loaded.'));
|
|
}
|
|
|
|
$hooks = theme_get_registry(FALSE);
|
|
|
|
// If an array of hook candidates were passed, use the first one that has an
|
|
// implementation.
|
|
if (is_array($hook)) {
|
|
foreach ($hook as $candidate) {
|
|
if (isset($hooks[$candidate])) {
|
|
break;
|
|
}
|
|
}
|
|
$hook = $candidate;
|
|
}
|
|
$theme_hook_original = $hook;
|
|
|
|
// If there's no implementation, check for more generic fallbacks. If there's
|
|
// still no implementation, log an error and return an empty string.
|
|
if (!isset($hooks[$hook])) {
|
|
// Iteratively strip everything after the last '__' delimiter, until an
|
|
// implementation is found.
|
|
while ($pos = strrpos($hook, '__')) {
|
|
$hook = substr($hook, 0, $pos);
|
|
if (isset($hooks[$hook])) {
|
|
break;
|
|
}
|
|
}
|
|
if (!isset($hooks[$hook])) {
|
|
// Only log a message when not trying theme suggestions ($hook being an
|
|
// array).
|
|
if (!isset($candidate)) {
|
|
watchdog('theme', 'Theme hook %hook not found.', array('%hook' => $hook), WATCHDOG_WARNING);
|
|
}
|
|
return '';
|
|
}
|
|
}
|
|
|
|
$info = $hooks[$hook];
|
|
global $theme_path;
|
|
$temp = $theme_path;
|
|
// point path_to_theme() to the currently used theme path:
|
|
$theme_path = $info['theme path'];
|
|
|
|
// Include a file if the theme function or variable processor is held
|
|
// elsewhere.
|
|
if (!empty($info['includes'])) {
|
|
foreach ($info['includes'] as $include_file) {
|
|
include_once DRUPAL_ROOT . '/' . $include_file;
|
|
}
|
|
}
|
|
|
|
// If a renderable array is passed as $variables, then set $variables to
|
|
// the arguments expected by the theme function.
|
|
if (isset($variables['#theme']) || isset($variables['#theme_wrappers'])) {
|
|
$element = $variables;
|
|
$variables = array();
|
|
if (isset($info['variables'])) {
|
|
foreach (array_keys($info['variables']) as $name) {
|
|
if (isset($element["#$name"])) {
|
|
$variables[$name] = $element["#$name"];
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
$variables[$info['render element']] = $element;
|
|
}
|
|
}
|
|
|
|
// Merge in argument defaults.
|
|
if (!empty($info['variables'])) {
|
|
$variables += $info['variables'];
|
|
}
|
|
elseif (!empty($info['render element'])) {
|
|
$variables += array($info['render element'] => array());
|
|
}
|
|
|
|
$variables['theme_hook_original'] = $theme_hook_original;
|
|
|
|
// Invoke the variable processors, if any. The processors may specify
|
|
// alternate suggestions for which hook's template/function to use. If the
|
|
// hook is a suggestion of a base hook, invoke the variable processors of
|
|
// the base hook, but retain the suggestion as a high priority suggestion to
|
|
// be used unless overridden by a variable processor function.
|
|
if (isset($info['base hook'])) {
|
|
$base_hook = $info['base hook'];
|
|
$base_hook_info = $hooks[$base_hook];
|
|
// Include files required by the base hook, since its variable processors
|
|
// might reside there.
|
|
if (!empty($base_hook_info['includes'])) {
|
|
foreach ($base_hook_info['includes'] as $include_file) {
|
|
include_once DRUPAL_ROOT . '/' . $include_file;
|
|
}
|
|
}
|
|
if (isset($base_hook_info['preprocess functions']) || isset($base_hook_info['process functions'])) {
|
|
$variables['theme_hook_suggestion'] = $hook;
|
|
$hook = $base_hook;
|
|
$info = $base_hook_info;
|
|
}
|
|
}
|
|
if (isset($info['preprocess functions']) || isset($info['process functions'])) {
|
|
$variables['theme_hook_suggestions'] = array();
|
|
foreach (array('preprocess functions', 'process functions') as $phase) {
|
|
if (!empty($info[$phase])) {
|
|
foreach ($info[$phase] as $processor_function) {
|
|
if (function_exists($processor_function)) {
|
|
// We don't want a poorly behaved process function changing $hook.
|
|
$hook_clone = $hook;
|
|
$processor_function($variables, $hook_clone);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// If the preprocess/process functions specified hook suggestions, and the
|
|
// suggestion exists in the theme registry, use it instead of the hook that
|
|
// theme() was called with. This allows the preprocess/process step to
|
|
// route to a more specific theme hook. For example, a function may call
|
|
// theme('node', ...), but a preprocess function can add 'node__article' as
|
|
// a suggestion, enabling a theme to have an alternate template file for
|
|
// article nodes. Suggestions are checked in the following order:
|
|
// - The 'theme_hook_suggestion' variable is checked first. It overrides
|
|
// all others.
|
|
// - The 'theme_hook_suggestions' variable is checked in FILO order, so the
|
|
// last suggestion added to the array takes precedence over suggestions
|
|
// added earlier.
|
|
$suggestions = array();
|
|
if (!empty($variables['theme_hook_suggestions'])) {
|
|
$suggestions = $variables['theme_hook_suggestions'];
|
|
}
|
|
if (!empty($variables['theme_hook_suggestion'])) {
|
|
$suggestions[] = $variables['theme_hook_suggestion'];
|
|
}
|
|
foreach (array_reverse($suggestions) as $suggestion) {
|
|
if (isset($hooks[$suggestion])) {
|
|
$info = $hooks[$suggestion];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Generate the output using either a function or a template.
|
|
$output = '';
|
|
if (isset($info['function'])) {
|
|
if (function_exists($info['function'])) {
|
|
$output = $info['function']($variables);
|
|
}
|
|
}
|
|
else {
|
|
// Default render function and extension.
|
|
$render_function = 'theme_render_template';
|
|
$extension = '.tpl.php';
|
|
|
|
// The theme engine may use a different extension and a different renderer.
|
|
global $theme_engine;
|
|
if (isset($theme_engine)) {
|
|
if ($info['type'] != 'module') {
|
|
if (function_exists($theme_engine . '_render_template')) {
|
|
$render_function = $theme_engine . '_render_template';
|
|
}
|
|
$extension_function = $theme_engine . '_extension';
|
|
if (function_exists($extension_function)) {
|
|
$extension = $extension_function();
|
|
}
|
|
}
|
|
}
|
|
|
|
// In some cases, a template implementation may not have had
|
|
// template_preprocess() run (for example, if the default implementation is
|
|
// a function, but a template overrides that default implementation). In
|
|
// these cases, a template should still be able to expect to have access to
|
|
// the variables provided by template_preprocess(), so we add them here if
|
|
// they don't already exist. We don't want to run template_preprocess()
|
|
// twice (it would be inefficient and mess up zebra striping), so we use the
|
|
// 'directory' variable to determine if it has already run, which while not
|
|
// completely intuitive, is reasonably safe, and allows us to save on the
|
|
// overhead of adding some new variable to track that.
|
|
if (!isset($variables['directory'])) {
|
|
$default_template_variables = array();
|
|
template_preprocess($default_template_variables, $hook);
|
|
$variables += $default_template_variables;
|
|
}
|
|
|
|
// Render the output using the template file.
|
|
$template_file = $info['template'] . $extension;
|
|
if (isset($info['path'])) {
|
|
$template_file = $info['path'] . '/' . $template_file;
|
|
}
|
|
if (variable_get('theme_debug', FALSE)) {
|
|
$output = _theme_render_template_debug($render_function, $template_file, $variables, $extension);
|
|
}
|
|
else {
|
|
$output = $render_function($template_file, $variables);
|
|
}
|
|
}
|
|
|
|
// restore path_to_theme()
|
|
$theme_path = $temp;
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Returns the path to the current themed element.
|
|
*
|
|
* It can point to the active theme or the module handling a themed
|
|
* implementation. For example, when invoked within the scope of a theming call
|
|
* it will depend on where the theming function is handled. If implemented from
|
|
* a module, it will point to the module. If implemented from the active theme,
|
|
* it will point to the active theme. When called outside the scope of a
|
|
* theming call, it will always point to the active theme.
|
|
*/
|
|
function path_to_theme() {
|
|
global $theme_path;
|
|
|
|
if (!isset($theme_path)) {
|
|
drupal_theme_initialize();
|
|
}
|
|
|
|
return $theme_path;
|
|
}
|
|
|
|
/**
|
|
* Allows themes and/or theme engines to discover overridden theme functions.
|
|
*
|
|
* @param $cache
|
|
* The existing cache of theme hooks to test against.
|
|
* @param $prefixes
|
|
* An array of prefixes to test, in reverse order of importance.
|
|
*
|
|
* @return $implementations
|
|
* The functions found, suitable for returning from hook_theme;
|
|
*/
|
|
function drupal_find_theme_functions($cache, $prefixes) {
|
|
$implementations = array();
|
|
$functions = get_defined_functions();
|
|
$theme_functions = preg_grep('/^(' . implode(')|(', $prefixes) . ')_/', $functions['user']);
|
|
|
|
foreach ($cache as $hook => $info) {
|
|
foreach ($prefixes as $prefix) {
|
|
// Find theme functions that implement possible "suggestion" variants of
|
|
// registered theme hooks and add those as new registered theme hooks.
|
|
// The 'pattern' key defines a common prefix that all suggestions must
|
|
// start with. The default is the name of the hook followed by '__'. An
|
|
// 'base hook' key is added to each entry made for a found suggestion,
|
|
// so that common functionality can be implemented for all suggestions of
|
|
// the same base hook. To keep things simple, deep hierarchy of
|
|
// suggestions is not supported: each suggestion's 'base hook' key
|
|
// refers to a base hook, not to another suggestion, and all suggestions
|
|
// are found using the base hook's pattern, not a pattern from an
|
|
// intermediary suggestion.
|
|
$pattern = isset($info['pattern']) ? $info['pattern'] : ($hook . '__');
|
|
if (!isset($info['base hook']) && !empty($pattern)) {
|
|
$matches = preg_grep('/^' . $prefix . '_' . $pattern . '/', $theme_functions);
|
|
if ($matches) {
|
|
foreach ($matches as $match) {
|
|
$new_hook = substr($match, strlen($prefix) + 1);
|
|
$arg_name = isset($info['variables']) ? 'variables' : 'render element';
|
|
$implementations[$new_hook] = array(
|
|
'function' => $match,
|
|
$arg_name => $info[$arg_name],
|
|
'base hook' => $hook,
|
|
);
|
|
}
|
|
}
|
|
}
|
|
// Find theme functions that implement registered theme hooks and include
|
|
// that in what is returned so that the registry knows that the theme has
|
|
// this implementation.
|
|
if (function_exists($prefix . '_' . $hook)) {
|
|
$implementations[$hook] = array(
|
|
'function' => $prefix . '_' . $hook,
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
return $implementations;
|
|
}
|
|
|
|
/**
|
|
* Allows themes and/or theme engines to easily discover overridden templates.
|
|
*
|
|
* @param $cache
|
|
* The existing cache of theme hooks to test against.
|
|
* @param $extension
|
|
* The extension that these templates will have.
|
|
* @param $path
|
|
* The path to search.
|
|
*/
|
|
function drupal_find_theme_templates($cache, $extension, $path) {
|
|
$implementations = array();
|
|
|
|
// Collect paths to all sub-themes grouped by base themes. These will be
|
|
// used for filtering. This allows base themes to have sub-themes in its
|
|
// folder hierarchy without affecting the base themes template discovery.
|
|
$theme_paths = array();
|
|
foreach (list_themes() as $theme_info) {
|
|
if (!empty($theme_info->base_theme)) {
|
|
$theme_paths[$theme_info->base_theme][$theme_info->name] = dirname($theme_info->filename);
|
|
}
|
|
}
|
|
foreach ($theme_paths as $basetheme => $subthemes) {
|
|
foreach ($subthemes as $subtheme => $subtheme_path) {
|
|
if (isset($theme_paths[$subtheme])) {
|
|
$theme_paths[$basetheme] = array_merge($theme_paths[$basetheme], $theme_paths[$subtheme]);
|
|
}
|
|
}
|
|
}
|
|
global $theme;
|
|
$subtheme_paths = isset($theme_paths[$theme]) ? $theme_paths[$theme] : array();
|
|
|
|
// Escape the periods in the extension.
|
|
$regex = '/' . str_replace('.', '\.', $extension) . '$/';
|
|
// Get a listing of all template files in the path to search.
|
|
$files = drupal_system_listing($regex, $path, 'name', 0);
|
|
|
|
// Find templates that implement registered theme hooks and include that in
|
|
// what is returned so that the registry knows that the theme has this
|
|
// implementation.
|
|
foreach ($files as $template => $file) {
|
|
// Ignore sub-theme templates for the current theme.
|
|
if (strpos($file->uri, str_replace($subtheme_paths, '', $file->uri)) !== 0) {
|
|
continue;
|
|
}
|
|
// Chop off the remaining extensions if there are any. $template already
|
|
// has the rightmost extension removed, but there might still be more,
|
|
// such as with .tpl.php, which still has .tpl in $template at this point.
|
|
if (($pos = strpos($template, '.')) !== FALSE) {
|
|
$template = substr($template, 0, $pos);
|
|
}
|
|
// Transform - in filenames to _ to match function naming scheme
|
|
// for the purposes of searching.
|
|
$hook = strtr($template, '-', '_');
|
|
if (isset($cache[$hook])) {
|
|
$implementations[$hook] = array(
|
|
'template' => $template,
|
|
'path' => dirname($file->uri),
|
|
);
|
|
}
|
|
}
|
|
|
|
// Find templates that implement possible "suggestion" variants of registered
|
|
// theme hooks and add those as new registered theme hooks. See
|
|
// drupal_find_theme_functions() for more information about suggestions and
|
|
// the use of 'pattern' and 'base hook'.
|
|
$patterns = array_keys($files);
|
|
foreach ($cache as $hook => $info) {
|
|
$pattern = isset($info['pattern']) ? $info['pattern'] : ($hook . '__');
|
|
if (!isset($info['base hook']) && !empty($pattern)) {
|
|
// Transform _ in pattern to - to match file naming scheme
|
|
// for the purposes of searching.
|
|
$pattern = strtr($pattern, '_', '-');
|
|
|
|
$matches = preg_grep('/^' . $pattern . '/', $patterns);
|
|
if ($matches) {
|
|
foreach ($matches as $match) {
|
|
$file = substr($match, 0, strpos($match, '.'));
|
|
// Put the underscores back in for the hook name and register this
|
|
// pattern.
|
|
$arg_name = isset($info['variables']) ? 'variables' : 'render element';
|
|
$implementations[strtr($file, '-', '_')] = array(
|
|
'template' => $file,
|
|
'path' => dirname($files[$match]->uri),
|
|
$arg_name => $info[$arg_name],
|
|
'base hook' => $hook,
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return $implementations;
|
|
}
|
|
|
|
/**
|
|
* Retrieves a setting for the current theme or for a given theme.
|
|
*
|
|
* The final setting is obtained from the last value found in the following
|
|
* sources:
|
|
* - the default global settings specified in this function
|
|
* - the default theme-specific settings defined in any base theme's .info file
|
|
* - the default theme-specific settings defined in the theme's .info file
|
|
* - the saved values from the global theme settings form
|
|
* - the saved values from the theme's settings form
|
|
* To only retrieve the default global theme setting, an empty string should be
|
|
* given for $theme.
|
|
*
|
|
* @param $setting_name
|
|
* The name of the setting to be retrieved.
|
|
* @param $theme
|
|
* The name of a given theme; defaults to the current theme.
|
|
*
|
|
* @return
|
|
* The value of the requested setting, NULL if the setting does not exist.
|
|
*/
|
|
function theme_get_setting($setting_name, $theme = NULL) {
|
|
$cache = &drupal_static(__FUNCTION__, array());
|
|
|
|
// If no key is given, use the current theme if we can determine it.
|
|
if (!isset($theme)) {
|
|
$theme = !empty($GLOBALS['theme_key']) ? $GLOBALS['theme_key'] : '';
|
|
}
|
|
|
|
if (empty($cache[$theme])) {
|
|
// Set the default values for each global setting.
|
|
// To add new global settings, add their default values below, and then
|
|
// add form elements to system_theme_settings() in system.admin.inc.
|
|
$cache[$theme] = array(
|
|
'default_logo' => 1,
|
|
'logo_path' => '',
|
|
'default_favicon' => 1,
|
|
'favicon_path' => '',
|
|
// Use the IANA-registered MIME type for ICO files as default.
|
|
'favicon_mimetype' => 'image/vnd.microsoft.icon',
|
|
);
|
|
// Turn on all default features.
|
|
$features = _system_default_theme_features();
|
|
foreach ($features as $feature) {
|
|
$cache[$theme]['toggle_' . $feature] = 1;
|
|
}
|
|
|
|
// Get the values for the theme-specific settings from the .info files of
|
|
// the theme and all its base themes.
|
|
if ($theme) {
|
|
$themes = list_themes();
|
|
$theme_object = $themes[$theme];
|
|
|
|
// Create a list which includes the current theme and all its base themes.
|
|
if (isset($theme_object->base_themes)) {
|
|
$theme_keys = array_keys($theme_object->base_themes);
|
|
$theme_keys[] = $theme;
|
|
}
|
|
else {
|
|
$theme_keys = array($theme);
|
|
}
|
|
foreach ($theme_keys as $theme_key) {
|
|
if (!empty($themes[$theme_key]->info['settings'])) {
|
|
$cache[$theme] = array_merge($cache[$theme], $themes[$theme_key]->info['settings']);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Get the saved global settings from the database.
|
|
$cache[$theme] = array_merge($cache[$theme], variable_get('theme_settings', array()));
|
|
|
|
if ($theme) {
|
|
// Get the saved theme-specific settings from the database.
|
|
$cache[$theme] = array_merge($cache[$theme], variable_get('theme_' . $theme . '_settings', array()));
|
|
|
|
// If the theme does not support a particular feature, override the global
|
|
// setting and set the value to NULL.
|
|
if (!empty($theme_object->info['features'])) {
|
|
foreach ($features as $feature) {
|
|
if (!in_array($feature, $theme_object->info['features'])) {
|
|
$cache[$theme]['toggle_' . $feature] = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Generate the path to the logo image.
|
|
if ($cache[$theme]['toggle_logo']) {
|
|
if ($cache[$theme]['default_logo']) {
|
|
$cache[$theme]['logo'] = file_create_url(dirname($theme_object->filename) . '/logo.png');
|
|
}
|
|
elseif ($cache[$theme]['logo_path']) {
|
|
$cache[$theme]['logo'] = file_create_url($cache[$theme]['logo_path']);
|
|
}
|
|
}
|
|
|
|
// Generate the path to the favicon.
|
|
if ($cache[$theme]['toggle_favicon']) {
|
|
if ($cache[$theme]['default_favicon']) {
|
|
if (file_exists($favicon = dirname($theme_object->filename) . '/favicon.ico')) {
|
|
$cache[$theme]['favicon'] = file_create_url($favicon);
|
|
}
|
|
else {
|
|
$cache[$theme]['favicon'] = file_create_url('misc/favicon.ico');
|
|
}
|
|
}
|
|
elseif ($cache[$theme]['favicon_path']) {
|
|
$cache[$theme]['favicon'] = file_create_url($cache[$theme]['favicon_path']);
|
|
}
|
|
else {
|
|
$cache[$theme]['toggle_favicon'] = FALSE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return isset($cache[$theme][$setting_name]) ? $cache[$theme][$setting_name] : NULL;
|
|
}
|
|
|
|
/**
|
|
* Renders a system default template, which is essentially a PHP template.
|
|
*
|
|
* @param $template_file
|
|
* The filename of the template to render.
|
|
* @param $variables
|
|
* A keyed array of variables that will appear in the output.
|
|
*
|
|
* @return
|
|
* The output generated by the template.
|
|
*/
|
|
function theme_render_template($template_file, $variables) {
|
|
// Extract the variables to a local namespace
|
|
extract($variables, EXTR_SKIP);
|
|
|
|
// Start output buffering
|
|
ob_start();
|
|
|
|
// Include the template file
|
|
include DRUPAL_ROOT . '/' . $template_file;
|
|
|
|
// End buffering and return its contents
|
|
return ob_get_clean();
|
|
}
|
|
|
|
/**
|
|
* Renders a template for any engine.
|
|
*
|
|
* Includes the possibility to get debug output by setting the
|
|
* theme_debug variable to TRUE.
|
|
*
|
|
* @param string $template_function
|
|
* The function to call for rendering the template.
|
|
* @param string $template_file
|
|
* The filename of the template to render.
|
|
* @param array $variables
|
|
* A keyed array of variables that will appear in the output.
|
|
* @param string $extension
|
|
* The extension used by the theme engine for template files.
|
|
*
|
|
* @return string
|
|
* The output generated by the template including debug information.
|
|
*/
|
|
function _theme_render_template_debug($template_function, $template_file, $variables, $extension) {
|
|
$output = array(
|
|
'debug_prefix' => '',
|
|
'debug_info' => '',
|
|
'rendered_markup' => call_user_func($template_function, $template_file, $variables),
|
|
'debug_suffix' => '',
|
|
);
|
|
$output['debug_prefix'] .= "\n\n<!-- THEME DEBUG -->";
|
|
$output['debug_prefix'] .= "\n<!-- CALL: theme('" . check_plain($variables['theme_hook_original']) . "') -->";
|
|
// If there are theme suggestions, reverse the array so more specific
|
|
// suggestions are shown first.
|
|
if (!empty($variables['theme_hook_suggestions'])) {
|
|
$variables['theme_hook_suggestions'] = array_reverse($variables['theme_hook_suggestions']);
|
|
}
|
|
// Add debug output for directly called suggestions like
|
|
// '#theme' => 'comment__node__article'.
|
|
if (strpos($variables['theme_hook_original'], '__') !== FALSE) {
|
|
$derived_suggestions[] = $hook = $variables['theme_hook_original'];
|
|
while ($pos = strrpos($hook, '__')) {
|
|
$hook = substr($hook, 0, $pos);
|
|
$derived_suggestions[] = $hook;
|
|
}
|
|
// Get the value of the base hook (last derived suggestion) and append it
|
|
// to the end of all theme suggestions.
|
|
$base_hook = array_pop($derived_suggestions);
|
|
$variables['theme_hook_suggestions'] = array_merge($derived_suggestions, $variables['theme_hook_suggestions']);
|
|
$variables['theme_hook_suggestions'][] = $base_hook;
|
|
}
|
|
if (!empty($variables['theme_hook_suggestions'])) {
|
|
$current_template = basename($template_file);
|
|
$suggestions = $variables['theme_hook_suggestions'];
|
|
// Only add the original theme hook if it wasn't a directly called
|
|
// suggestion.
|
|
if (strpos($variables['theme_hook_original'], '__') === FALSE) {
|
|
$suggestions[] = $variables['theme_hook_original'];
|
|
}
|
|
foreach ($suggestions as &$suggestion) {
|
|
$template = strtr($suggestion, '_', '-') . $extension;
|
|
$prefix = ($template == $current_template) ? 'x' : '*';
|
|
$suggestion = $prefix . ' ' . $template;
|
|
}
|
|
$output['debug_info'] .= "\n<!-- FILE NAME SUGGESTIONS:\n " . check_plain(implode("\n ", $suggestions)) . "\n-->";
|
|
}
|
|
$output['debug_info'] .= "\n<!-- BEGIN OUTPUT from '" . check_plain($template_file) . "' -->\n";
|
|
$output['debug_suffix'] .= "\n<!-- END OUTPUT from '" . check_plain($template_file) . "' -->\n\n";
|
|
return implode('', $output);
|
|
}
|
|
|
|
/**
|
|
* Enables a given list of themes.
|
|
*
|
|
* @param $theme_list
|
|
* An array of theme names.
|
|
*/
|
|
function theme_enable($theme_list) {
|
|
drupal_clear_css_cache();
|
|
|
|
foreach ($theme_list as $key) {
|
|
db_update('system')
|
|
->fields(array('status' => 1))
|
|
->condition('type', 'theme')
|
|
->condition('name', $key)
|
|
->execute();
|
|
}
|
|
|
|
list_themes(TRUE);
|
|
menu_rebuild();
|
|
drupal_theme_rebuild();
|
|
|
|
// Invoke hook_themes_enabled() after the themes have been enabled.
|
|
module_invoke_all('themes_enabled', $theme_list);
|
|
}
|
|
|
|
/**
|
|
* Disables a given list of themes.
|
|
*
|
|
* @param $theme_list
|
|
* An array of theme names.
|
|
*/
|
|
function theme_disable($theme_list) {
|
|
// Don't disable the default theme.
|
|
if ($pos = array_search(variable_get('theme_default', 'bartik'), $theme_list) !== FALSE) {
|
|
unset($theme_list[$pos]);
|
|
if (empty($theme_list)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
drupal_clear_css_cache();
|
|
|
|
foreach ($theme_list as $key) {
|
|
db_update('system')
|
|
->fields(array('status' => 0))
|
|
->condition('type', 'theme')
|
|
->condition('name', $key)
|
|
->execute();
|
|
}
|
|
|
|
list_themes(TRUE);
|
|
menu_rebuild();
|
|
drupal_theme_rebuild();
|
|
|
|
// Invoke hook_themes_disabled after the themes have been disabled.
|
|
module_invoke_all('themes_disabled', $theme_list);
|
|
}
|
|
|
|
/**
|
|
* @addtogroup themeable
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* Returns HTML for status and/or error messages, grouped by type.
|
|
*
|
|
* An invisible heading identifies the messages for assistive technology.
|
|
* Sighted users see a colored box. See http://www.w3.org/TR/WCAG-TECHS/H69.html
|
|
* for info.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - display: (optional) Set to 'status' or 'error' to display only messages
|
|
* of that type.
|
|
*/
|
|
function theme_status_messages($variables) {
|
|
$display = $variables['display'];
|
|
$output = '';
|
|
|
|
$status_heading = array(
|
|
'status' => t('Status message'),
|
|
'error' => t('Error message'),
|
|
'warning' => t('Warning message'),
|
|
);
|
|
foreach (drupal_get_messages($display) as $type => $messages) {
|
|
$output .= "<div class=\"messages $type\">\n";
|
|
if (!empty($status_heading[$type])) {
|
|
$output .= '<h2 class="element-invisible">' . $status_heading[$type] . "</h2>\n";
|
|
}
|
|
if (count($messages) > 1) {
|
|
$output .= " <ul>\n";
|
|
foreach ($messages as $message) {
|
|
$output .= ' <li>' . $message . "</li>\n";
|
|
}
|
|
$output .= " </ul>\n";
|
|
}
|
|
else {
|
|
$output .= reset($messages);
|
|
}
|
|
$output .= "</div>\n";
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a link.
|
|
*
|
|
* All Drupal code that outputs a link should call the l() function. That
|
|
* function performs some initial preprocessing, and then, if necessary, calls
|
|
* theme('link') for rendering the anchor tag.
|
|
*
|
|
* To optimize performance for sites that don't need custom theming of links,
|
|
* the l() function includes an inline copy of this function, and uses that
|
|
* copy if none of the enabled modules or the active theme implement any
|
|
* preprocess or process functions or override this theme implementation.
|
|
*
|
|
* @param array $variables
|
|
* An associative array containing the keys:
|
|
* - text: The text of the link.
|
|
* - path: The internal path or external URL being linked to. It is used as
|
|
* the $path parameter of the url() function.
|
|
* - options: (optional) An array that defaults to empty, but can contain:
|
|
* - attributes: Can contain optional attributes:
|
|
* - class: must be declared in an array. Example: 'class' =>
|
|
* array('class_name1','class_name2').
|
|
* - title: must be a string. Example: 'title' => 'Example title'
|
|
* - Others are more flexible as long as they work with
|
|
* drupal_attributes($variables['options']['attributes]).
|
|
* - html: Boolean flag that tells whether text contains HTML or plain
|
|
* text. If set to TRUE, the text value will not be sanitized so the
|
|
calling function must ensure that it already contains safe HTML.
|
|
* The elements $variables['options']['attributes'] and
|
|
* $variables['options']['html'] are used in this function similarly to the
|
|
* way that $options['attributes'] and $options['html'] are used in l().
|
|
* The link itself is built by the url() function, which takes
|
|
* $variables['path'] and $variables['options'] as arguments.
|
|
*
|
|
* @see l()
|
|
* @see url()
|
|
*/
|
|
function theme_link($variables) {
|
|
return '<a href="' . check_plain(url($variables['path'], $variables['options'])) . '"' . drupal_attributes($variables['options']['attributes']) . '>' . ($variables['options']['html'] ? $variables['text'] : check_plain($variables['text'])) . '</a>';
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a set of links.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - links: An associative array of links to be themed. The key for each link
|
|
* is used as its CSS class. Each link should be itself an array, with the
|
|
* following elements:
|
|
* - title: The link text.
|
|
* - href: The link URL. If omitted, the 'title' is shown as a plain text
|
|
* item in the links list.
|
|
* - html: (optional) Whether or not 'title' is HTML. If set, the title
|
|
* will not be passed through check_plain().
|
|
* - attributes: (optional) Attributes for the anchor, or for the <span>
|
|
* tag used in its place if no 'href' is supplied. If element 'class' is
|
|
* included, it must be an array of one or more class names.
|
|
* If the 'href' element is supplied, the entire link array is passed to
|
|
* l() as its $options parameter.
|
|
* - attributes: A keyed array of attributes for the UL containing the
|
|
* list of links.
|
|
* - heading: (optional) A heading to precede the links. May be an
|
|
* associative array or a string. If it's an array, it can have the
|
|
* following elements:
|
|
* - text: The heading text.
|
|
* - level: The heading level (e.g. 'h2', 'h3').
|
|
* - class: (optional) An array of the CSS classes for the heading.
|
|
* When using a string it will be used as the text of the heading and the
|
|
* level will default to 'h2'. Headings should be used on navigation menus
|
|
* and any list of links that consistently appears on multiple pages. To
|
|
* make the heading invisible use the 'element-invisible' CSS class. Do not
|
|
* use 'display:none', which removes it from screen-readers and assistive
|
|
* technology. Headings allow screen-reader and keyboard only users to
|
|
* navigate to or skip the links. See
|
|
* http://juicystudio.com/article/screen-readers-display-none.php and
|
|
* http://www.w3.org/TR/WCAG-TECHS/H42.html for more information.
|
|
*/
|
|
function theme_links($variables) {
|
|
$links = $variables['links'];
|
|
$attributes = $variables['attributes'];
|
|
$heading = $variables['heading'];
|
|
global $language_url;
|
|
$output = '';
|
|
|
|
if (count($links) > 0) {
|
|
// Treat the heading first if it is present to prepend it to the
|
|
// list of links.
|
|
if (!empty($heading)) {
|
|
if (is_string($heading)) {
|
|
// Prepare the array that will be used when the passed heading
|
|
// is a string.
|
|
$heading = array(
|
|
'text' => $heading,
|
|
// Set the default level of the heading.
|
|
'level' => 'h2',
|
|
);
|
|
}
|
|
$output .= '<' . $heading['level'];
|
|
if (!empty($heading['class'])) {
|
|
$output .= drupal_attributes(array('class' => $heading['class']));
|
|
}
|
|
$output .= '>' . check_plain($heading['text']) . '</' . $heading['level'] . '>';
|
|
}
|
|
|
|
$output .= '<ul' . drupal_attributes($attributes) . '>';
|
|
|
|
$num_links = count($links);
|
|
$i = 1;
|
|
|
|
foreach ($links as $key => $link) {
|
|
$class = array($key);
|
|
|
|
// Add first, last and active classes to the list of links to help out
|
|
// themers.
|
|
if ($i == 1) {
|
|
$class[] = 'first';
|
|
}
|
|
if ($i == $num_links) {
|
|
$class[] = 'last';
|
|
}
|
|
if (isset($link['href']) && ($link['href'] == $_GET['q'] || ($link['href'] == '<front>' && drupal_is_front_page()))
|
|
&& (empty($link['language']) || $link['language']->language == $language_url->language)) {
|
|
$class[] = 'active';
|
|
}
|
|
$output .= '<li' . drupal_attributes(array('class' => $class)) . '>';
|
|
|
|
if (isset($link['href'])) {
|
|
// Pass in $link as $options, they share the same keys.
|
|
$output .= l($link['title'], $link['href'], $link);
|
|
}
|
|
elseif (!empty($link['title'])) {
|
|
// Some links are actually not links, but we wrap these in <span> for
|
|
// adding title and class attributes.
|
|
if (empty($link['html'])) {
|
|
$link['title'] = check_plain($link['title']);
|
|
}
|
|
$span_attributes = '';
|
|
if (isset($link['attributes'])) {
|
|
$span_attributes = drupal_attributes($link['attributes']);
|
|
}
|
|
$output .= '<span' . $span_attributes . '>' . $link['title'] . '</span>';
|
|
}
|
|
|
|
$i++;
|
|
$output .= "</li>\n";
|
|
}
|
|
|
|
$output .= '</ul>';
|
|
}
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for an image.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - path: Either the path of the image file (relative to base_path()) or a
|
|
* full URL.
|
|
* - width: The width of the image (if known).
|
|
* - height: The height of the image (if known).
|
|
* - alt: The alternative text for text-based browsers. HTML 4 and XHTML 1.0
|
|
* always require an alt attribute. The HTML 5 draft allows the alt
|
|
* attribute to be omitted in some cases. Therefore, this variable defaults
|
|
* to an empty string, but can be set to NULL for the attribute to be
|
|
* omitted. Usually, neither omission nor an empty string satisfies
|
|
* accessibility requirements, so it is strongly encouraged for code
|
|
* calling theme('image') to pass a meaningful value for this variable.
|
|
* - http://www.w3.org/TR/REC-html40/struct/objects.html#h-13.8
|
|
* - http://www.w3.org/TR/xhtml1/dtds.html
|
|
* - http://dev.w3.org/html5/spec/Overview.html#alt
|
|
* - title: The title text is displayed when the image is hovered in some
|
|
* popular browsers.
|
|
* - attributes: Associative array of attributes to be placed in the img tag.
|
|
*/
|
|
function theme_image($variables) {
|
|
$attributes = $variables['attributes'];
|
|
$attributes['src'] = file_create_url($variables['path']);
|
|
|
|
foreach (array('width', 'height', 'alt', 'title') as $key) {
|
|
|
|
if (isset($variables[$key])) {
|
|
$attributes[$key] = $variables[$key];
|
|
}
|
|
}
|
|
|
|
return '<img' . drupal_attributes($attributes) . ' />';
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a breadcrumb trail.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - breadcrumb: An array containing the breadcrumb links.
|
|
*/
|
|
function theme_breadcrumb($variables) {
|
|
$breadcrumb = $variables['breadcrumb'];
|
|
|
|
if (!empty($breadcrumb)) {
|
|
// Provide a navigational heading to give context for breadcrumb links to
|
|
// screen-reader users. Make the heading invisible with .element-invisible.
|
|
$output = '<h2 class="element-invisible">' . t('You are here') . '</h2>';
|
|
|
|
$output .= '<div class="breadcrumb">' . implode(' » ', $breadcrumb) . '</div>';
|
|
return $output;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a table.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - header: An array containing the table headers. Each element of the array
|
|
* can be either a localized string or an associative array with the
|
|
* following keys:
|
|
* - "data": The localized title of the table column.
|
|
* - "field": The database field represented in the table column (required
|
|
* if user is to be able to sort on this column).
|
|
* - "sort": A default sort order for this column ("asc" or "desc"). Only
|
|
* one column should be given a default sort order because table sorting
|
|
* only applies to one column at a time.
|
|
* - Any HTML attributes, such as "colspan", to apply to the column header
|
|
* cell.
|
|
* - rows: An array of table rows. Every row is an array of cells, or an
|
|
* associative array with the following keys:
|
|
* - "data": an array of cells
|
|
* - Any HTML attributes, such as "class", to apply to the table row.
|
|
* - "no_striping": a boolean indicating that the row should receive no
|
|
* 'even / odd' styling. Defaults to FALSE.
|
|
* Each cell can be either a string or an associative array with the
|
|
* following keys:
|
|
* - "data": The string to display in the table cell.
|
|
* - "header": Indicates this cell is a header.
|
|
* - Any HTML attributes, such as "colspan", to apply to the table cell.
|
|
* Here's an example for $rows:
|
|
* @code
|
|
* $rows = array(
|
|
* // Simple row
|
|
* array(
|
|
* 'Cell 1', 'Cell 2', 'Cell 3'
|
|
* ),
|
|
* // Row with attributes on the row and some of its cells.
|
|
* array(
|
|
* 'data' => array('Cell 1', array('data' => 'Cell 2', 'colspan' => 2)), 'class' => array('funky')
|
|
* )
|
|
* );
|
|
* @endcode
|
|
* - attributes: An array of HTML attributes to apply to the table tag.
|
|
* - caption: A localized string to use for the <caption> tag.
|
|
* - colgroups: An array of column groups. Each element of the array can be
|
|
* either:
|
|
* - An array of columns, each of which is an associative array of HTML
|
|
* attributes applied to the COL element.
|
|
* - An array of attributes applied to the COLGROUP element, which must
|
|
* include a "data" attribute. To add attributes to COL elements, set the
|
|
* "data" attribute with an array of columns, each of which is an
|
|
* associative array of HTML attributes.
|
|
* Here's an example for $colgroup:
|
|
* @code
|
|
* $colgroup = array(
|
|
* // COLGROUP with one COL element.
|
|
* array(
|
|
* array(
|
|
* 'class' => array('funky'), // Attribute for the COL element.
|
|
* ),
|
|
* ),
|
|
* // Colgroup with attributes and inner COL elements.
|
|
* array(
|
|
* 'data' => array(
|
|
* array(
|
|
* 'class' => array('funky'), // Attribute for the COL element.
|
|
* ),
|
|
* ),
|
|
* 'class' => array('jazzy'), // Attribute for the COLGROUP element.
|
|
* ),
|
|
* );
|
|
* @endcode
|
|
* These optional tags are used to group and set properties on columns
|
|
* within a table. For example, one may easily group three columns and
|
|
* apply same background style to all.
|
|
* - sticky: Use a "sticky" table header.
|
|
* - empty: The message to display in an extra row if table does not have any
|
|
* rows.
|
|
*/
|
|
function theme_table($variables) {
|
|
$header = $variables['header'];
|
|
$rows = $variables['rows'];
|
|
$attributes = $variables['attributes'];
|
|
$caption = $variables['caption'];
|
|
$colgroups = $variables['colgroups'];
|
|
$sticky = $variables['sticky'];
|
|
$empty = $variables['empty'];
|
|
|
|
// Add sticky headers, if applicable.
|
|
if (count($header) && $sticky) {
|
|
drupal_add_js('misc/tableheader.js');
|
|
// Add 'sticky-enabled' class to the table to identify it for JS.
|
|
// This is needed to target tables constructed by this function.
|
|
$attributes['class'][] = 'sticky-enabled';
|
|
}
|
|
|
|
$output = '<table' . drupal_attributes($attributes) . ">\n";
|
|
|
|
if (isset($caption)) {
|
|
$output .= '<caption>' . $caption . "</caption>\n";
|
|
}
|
|
|
|
// Format the table columns:
|
|
if (count($colgroups)) {
|
|
foreach ($colgroups as $number => $colgroup) {
|
|
$attributes = array();
|
|
|
|
// Check if we're dealing with a simple or complex column
|
|
if (isset($colgroup['data'])) {
|
|
foreach ($colgroup as $key => $value) {
|
|
if ($key == 'data') {
|
|
$cols = $value;
|
|
}
|
|
else {
|
|
$attributes[$key] = $value;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
$cols = $colgroup;
|
|
}
|
|
|
|
// Build colgroup
|
|
if (is_array($cols) && count($cols)) {
|
|
$output .= ' <colgroup' . drupal_attributes($attributes) . '>';
|
|
$i = 0;
|
|
foreach ($cols as $col) {
|
|
$output .= ' <col' . drupal_attributes($col) . ' />';
|
|
}
|
|
$output .= " </colgroup>\n";
|
|
}
|
|
else {
|
|
$output .= ' <colgroup' . drupal_attributes($attributes) . " />\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add the 'empty' row message if available.
|
|
if (!count($rows) && $empty) {
|
|
$header_count = 0;
|
|
foreach ($header as $header_cell) {
|
|
if (is_array($header_cell)) {
|
|
$header_count += isset($header_cell['colspan']) ? $header_cell['colspan'] : 1;
|
|
}
|
|
else {
|
|
$header_count++;
|
|
}
|
|
}
|
|
$rows[] = array(array('data' => $empty, 'colspan' => $header_count, 'class' => array('empty', 'message')));
|
|
}
|
|
|
|
// Format the table header:
|
|
if (count($header)) {
|
|
$ts = tablesort_init($header);
|
|
// HTML requires that the thead tag has tr tags in it followed by tbody
|
|
// tags. Using ternary operator to check and see if we have any rows.
|
|
$output .= (count($rows) ? ' <thead><tr>' : ' <tr>');
|
|
foreach ($header as $cell) {
|
|
$cell = tablesort_header($cell, $header, $ts);
|
|
$output .= _theme_table_cell($cell, TRUE);
|
|
}
|
|
// Using ternary operator to close the tags based on whether or not there are rows
|
|
$output .= (count($rows) ? " </tr></thead>\n" : "</tr>\n");
|
|
}
|
|
else {
|
|
$ts = array();
|
|
}
|
|
|
|
// Format the table rows:
|
|
if (count($rows)) {
|
|
$output .= "<tbody>\n";
|
|
$flip = array('even' => 'odd', 'odd' => 'even');
|
|
$class = 'even';
|
|
foreach ($rows as $number => $row) {
|
|
// Check if we're dealing with a simple or complex row
|
|
if (isset($row['data'])) {
|
|
$cells = $row['data'];
|
|
$no_striping = isset($row['no_striping']) ? $row['no_striping'] : FALSE;
|
|
|
|
// Set the attributes array and exclude 'data' and 'no_striping'.
|
|
$attributes = $row;
|
|
unset($attributes['data']);
|
|
unset($attributes['no_striping']);
|
|
}
|
|
else {
|
|
$cells = $row;
|
|
$attributes = array();
|
|
$no_striping = FALSE;
|
|
}
|
|
if (count($cells)) {
|
|
// Add odd/even class
|
|
if (!$no_striping) {
|
|
$class = $flip[$class];
|
|
$attributes['class'][] = $class;
|
|
}
|
|
|
|
// Build row
|
|
$output .= ' <tr' . drupal_attributes($attributes) . '>';
|
|
$i = 0;
|
|
foreach ($cells as $cell) {
|
|
$cell = tablesort_cell($cell, $header, $ts, $i++);
|
|
$output .= _theme_table_cell($cell);
|
|
}
|
|
$output .= " </tr>\n";
|
|
}
|
|
}
|
|
$output .= "</tbody>\n";
|
|
}
|
|
|
|
$output .= "</table>\n";
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a sort icon.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - style: Set to either 'asc' or 'desc', this determines which icon to
|
|
* show.
|
|
*/
|
|
function theme_tablesort_indicator($variables) {
|
|
if ($variables['style'] == "asc") {
|
|
return theme('image', array('path' => 'misc/arrow-asc.png', 'width' => 13, 'height' => 13, 'alt' => t('sort ascending'), 'title' => t('sort ascending')));
|
|
}
|
|
else {
|
|
return theme('image', array('path' => 'misc/arrow-desc.png', 'width' => 13, 'height' => 13, 'alt' => t('sort descending'), 'title' => t('sort descending')));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a marker for new or updated content.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - type: Number representing the marker type to display. See MARK_NEW,
|
|
* MARK_UPDATED, MARK_READ.
|
|
*/
|
|
function theme_mark($variables) {
|
|
$type = $variables['type'];
|
|
global $user;
|
|
if ($user->uid) {
|
|
if ($type == MARK_NEW) {
|
|
return ' <span class="marker">' . t('new') . '</span>';
|
|
}
|
|
elseif ($type == MARK_UPDATED) {
|
|
return ' <span class="marker">' . t('updated') . '</span>';
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a list or nested list of items.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - items: An array of items to be displayed in the list. If an item is a
|
|
* string, then it is used as is. If an item is an array, then the "data"
|
|
* element of the array is used as the contents of the list item. If an item
|
|
* is an array with a "children" element, those children are displayed in a
|
|
* nested list. All other elements are treated as attributes of the list
|
|
* item element.
|
|
* - title: The title of the list.
|
|
* - type: The type of list to return (e.g. "ul", "ol").
|
|
* - attributes: The attributes applied to the list element.
|
|
*/
|
|
function theme_item_list($variables) {
|
|
$items = $variables['items'];
|
|
$title = $variables['title'];
|
|
$type = $variables['type'];
|
|
$attributes = $variables['attributes'];
|
|
|
|
// Only output the list container and title, if there are any list items.
|
|
// Check to see whether the block title exists before adding a header.
|
|
// Empty headers are not semantic and present accessibility challenges.
|
|
$output = '<div class="item-list">';
|
|
if (isset($title) && $title !== '') {
|
|
$output .= '<h3>' . $title . '</h3>';
|
|
}
|
|
|
|
if (!empty($items)) {
|
|
$output .= "<$type" . drupal_attributes($attributes) . '>';
|
|
$num_items = count($items);
|
|
$i = 0;
|
|
foreach ($items as $item) {
|
|
$attributes = array();
|
|
$children = array();
|
|
$data = '';
|
|
$i++;
|
|
if (is_array($item)) {
|
|
foreach ($item as $key => $value) {
|
|
if ($key == 'data') {
|
|
$data = $value;
|
|
}
|
|
elseif ($key == 'children') {
|
|
$children = $value;
|
|
}
|
|
else {
|
|
$attributes[$key] = $value;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
$data = $item;
|
|
}
|
|
if (count($children) > 0) {
|
|
// Render nested list.
|
|
$data .= theme_item_list(array('items' => $children, 'title' => NULL, 'type' => $type, 'attributes' => $attributes));
|
|
}
|
|
if ($i == 1) {
|
|
$attributes['class'][] = 'first';
|
|
}
|
|
if ($i == $num_items) {
|
|
$attributes['class'][] = 'last';
|
|
}
|
|
$output .= '<li' . drupal_attributes($attributes) . '>' . $data . "</li>\n";
|
|
}
|
|
$output .= "</$type>";
|
|
}
|
|
$output .= '</div>';
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a "more help" link.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - url: The URL for the link.
|
|
*/
|
|
function theme_more_help_link($variables) {
|
|
return '<div class="more-help-link">' . l(t('More help'), $variables['url']) . '</div>';
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a feed icon.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - url: An internal system path or a fully qualified external URL of the
|
|
* feed.
|
|
* - title: A descriptive title of the feed.
|
|
*/
|
|
function theme_feed_icon($variables) {
|
|
$text = t('Subscribe to !feed-title', array('!feed-title' => $variables['title']));
|
|
if ($image = theme('image', array('path' => 'misc/feed.png', 'width' => 16, 'height' => 16, 'alt' => $text))) {
|
|
return l($image, $variables['url'], array('html' => TRUE, 'attributes' => array('class' => array('feed-icon'), 'title' => $text)));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a generic HTML tag with attributes.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - element: An associative array describing the tag:
|
|
* - #tag: The tag name to output. Typical tags added to the HTML HEAD:
|
|
* - meta: To provide meta information, such as a page refresh.
|
|
* - link: To refer to stylesheets and other contextual information.
|
|
* - script: To load JavaScript.
|
|
* - #attributes: (optional) An array of HTML attributes to apply to the
|
|
* tag.
|
|
* - #value: (optional) A string containing tag content, such as inline
|
|
* CSS.
|
|
* - #value_prefix: (optional) A string to prepend to #value, e.g. a CDATA
|
|
* wrapper prefix.
|
|
* - #value_suffix: (optional) A string to append to #value, e.g. a CDATA
|
|
* wrapper suffix.
|
|
*/
|
|
function theme_html_tag($variables) {
|
|
$element = $variables['element'];
|
|
$attributes = isset($element['#attributes']) ? drupal_attributes($element['#attributes']) : '';
|
|
if (!isset($element['#value'])) {
|
|
return '<' . $element['#tag'] . $attributes . " />\n";
|
|
}
|
|
else {
|
|
$output = '<' . $element['#tag'] . $attributes . '>';
|
|
if (isset($element['#value_prefix'])) {
|
|
$output .= $element['#value_prefix'];
|
|
}
|
|
$output .= $element['#value'];
|
|
if (isset($element['#value_suffix'])) {
|
|
$output .= $element['#value_suffix'];
|
|
}
|
|
$output .= '</' . $element['#tag'] . ">\n";
|
|
return $output;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a "more" link, like those used in blocks.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - url: The URL of the main page.
|
|
* - title: A descriptive verb for the link, like 'Read more'.
|
|
*/
|
|
function theme_more_link($variables) {
|
|
return '<div class="more-link">' . l(t('More'), $variables['url'], array('attributes' => array('title' => $variables['title']))) . '</div>';
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a username, potentially linked to the user's page.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - account: The user object to format.
|
|
* - name: The user's name, sanitized.
|
|
* - extra: Additional text to append to the user's name, sanitized.
|
|
* - link_path: The path or URL of the user's profile page, home page, or
|
|
* other desired page to link to for more information about the user.
|
|
* - link_options: An array of options to pass to the l() function's $options
|
|
* parameter if linking the user's name to the user's page.
|
|
* - attributes_array: An array of attributes to pass to the
|
|
* drupal_attributes() function if not linking to the user's page.
|
|
*
|
|
* @see template_preprocess_username()
|
|
* @see template_process_username()
|
|
*/
|
|
function theme_username($variables) {
|
|
if (isset($variables['link_path'])) {
|
|
// We have a link path, so we should generate a link using l().
|
|
// Additional classes may be added as array elements like
|
|
// $variables['link_options']['attributes']['class'][] = 'myclass';
|
|
$output = l($variables['name'] . $variables['extra'], $variables['link_path'], $variables['link_options']);
|
|
}
|
|
else {
|
|
// Modules may have added important attributes so they must be included
|
|
// in the output. Additional classes may be added as array elements like
|
|
// $variables['attributes_array']['class'][] = 'myclass';
|
|
$output = '<span' . drupal_attributes($variables['attributes_array']) . '>' . $variables['name'] . $variables['extra'] . '</span>';
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a progress bar.
|
|
*
|
|
* Note that the core Batch API uses this only for non-JavaScript batch jobs.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - percent: The percentage of the progress.
|
|
* - message: A string containing information to be displayed.
|
|
*/
|
|
function theme_progress_bar($variables) {
|
|
$output = '<div id="progress" class="progress">';
|
|
$output .= '<div class="bar"><div class="filled" style="width: ' . $variables['percent'] . '%"></div></div>';
|
|
$output .= '<div class="percentage">' . $variables['percent'] . '%</div>';
|
|
$output .= '<div class="message">' . $variables['message'] . '</div>';
|
|
$output .= '</div>';
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for an indentation div; used for drag and drop tables.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - size: Optional. The number of indentations to create.
|
|
*/
|
|
function theme_indentation($variables) {
|
|
$output = '';
|
|
for ($n = 0; $n < $variables['size']; $n++) {
|
|
$output .= '<div class="indentation"> </div>';
|
|
}
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* @} End of "addtogroup themeable".
|
|
*/
|
|
|
|
/**
|
|
* Returns HTML output for a single table cell for theme_table().
|
|
*
|
|
* @param $cell
|
|
* Array of cell information, or string to display in cell.
|
|
* @param bool $header
|
|
* TRUE if this cell is a table header cell, FALSE if it is an ordinary
|
|
* table cell. If $cell is an array with element 'header' set to TRUE, that
|
|
* will override the $header parameter.
|
|
*
|
|
* @return
|
|
* HTML for the cell.
|
|
*/
|
|
function _theme_table_cell($cell, $header = FALSE) {
|
|
$attributes = '';
|
|
|
|
if (is_array($cell)) {
|
|
$data = isset($cell['data']) ? $cell['data'] : '';
|
|
// Cell's data property can be a string or a renderable array.
|
|
if (is_array($data)) {
|
|
$data = drupal_render($data);
|
|
}
|
|
$header |= isset($cell['header']);
|
|
unset($cell['data']);
|
|
unset($cell['header']);
|
|
$attributes = drupal_attributes($cell);
|
|
}
|
|
else {
|
|
$data = $cell;
|
|
}
|
|
|
|
if ($header) {
|
|
$output = "<th$attributes>$data</th>";
|
|
}
|
|
else {
|
|
$output = "<td$attributes>$data</td>";
|
|
}
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Adds a default set of helper variables for variable processors and templates.
|
|
*
|
|
* This function is called for theme hooks implemented as templates only, not
|
|
* for theme hooks implemented as functions. This preprocess function is the
|
|
* first in the sequence of preprocessing and processing functions that is
|
|
* called when preparing variables for a template. See theme() for more details
|
|
* about the full sequence.
|
|
*
|
|
* @see theme()
|
|
* @see template_process()
|
|
*/
|
|
function template_preprocess(&$variables, $hook) {
|
|
global $user;
|
|
static $count = array();
|
|
|
|
// Track run count for each hook to provide zebra striping. See
|
|
// "template_preprocess_block()" which provides the same feature specific to
|
|
// blocks.
|
|
$count[$hook] = isset($count[$hook]) && is_int($count[$hook]) ? $count[$hook] : 1;
|
|
$variables['zebra'] = ($count[$hook] % 2) ? 'odd' : 'even';
|
|
$variables['id'] = $count[$hook]++;
|
|
|
|
// Tell all templates where they are located.
|
|
$variables['directory'] = path_to_theme();
|
|
|
|
// Initialize html class attribute for the current hook.
|
|
$variables['classes_array'] = array(drupal_html_class($hook));
|
|
|
|
// Merge in variables that don't depend on hook and don't change during a
|
|
// single page request.
|
|
// Use the advanced drupal_static() pattern, since this is called very often.
|
|
static $drupal_static_fast;
|
|
if (!isset($drupal_static_fast)) {
|
|
$drupal_static_fast['default_variables'] = &drupal_static(__FUNCTION__);
|
|
}
|
|
$default_variables = &$drupal_static_fast['default_variables'];
|
|
// Global $user object shouldn't change during a page request once rendering
|
|
// has started, but if there's an edge case where it does, re-fetch the
|
|
// variables appropriate for the new user.
|
|
if (!isset($default_variables) || ($user !== $default_variables['user'])) {
|
|
$default_variables = _template_preprocess_default_variables();
|
|
}
|
|
$variables += $default_variables;
|
|
}
|
|
|
|
/**
|
|
* Returns hook-independent variables to template_preprocess().
|
|
*/
|
|
function _template_preprocess_default_variables() {
|
|
global $user;
|
|
|
|
// Variables that don't depend on a database connection.
|
|
$variables = array(
|
|
'attributes_array' => array(),
|
|
'title_attributes_array' => array(),
|
|
'content_attributes_array' => array(),
|
|
'title_prefix' => array(),
|
|
'title_suffix' => array(),
|
|
'user' => $user,
|
|
'db_is_active' => !defined('MAINTENANCE_MODE'),
|
|
'is_admin' => FALSE,
|
|
'logged_in' => FALSE,
|
|
);
|
|
|
|
// The user object has no uid property when the database does not exist during
|
|
// install. The user_access() check deals with issues when in maintenance mode
|
|
// as uid is set but the user.module has not been included.
|
|
if (isset($user->uid) && function_exists('user_access')) {
|
|
$variables['is_admin'] = user_access('access administration pages');
|
|
$variables['logged_in'] = ($user->uid > 0);
|
|
}
|
|
|
|
// drupal_is_front_page() might throw an exception.
|
|
try {
|
|
$variables['is_front'] = drupal_is_front_page();
|
|
}
|
|
catch (Exception $e) {
|
|
// If the database is not yet available, set default values for these
|
|
// variables.
|
|
$variables['is_front'] = FALSE;
|
|
$variables['db_is_active'] = FALSE;
|
|
}
|
|
|
|
return $variables;
|
|
}
|
|
|
|
/**
|
|
* Adds helper variables derived from variables defined during preprocessing.
|
|
*
|
|
* When preparing variables for a theme hook implementation, all 'preprocess'
|
|
* functions run first, then all 'process' functions (see theme() for details
|
|
* about the full sequence).
|
|
*
|
|
* This function serializes array variables manipulated during the preprocessing
|
|
* phase into strings for convenient use by templates. As with
|
|
* template_preprocess(), this function does not get called for theme hooks
|
|
* implemented as functions.
|
|
*
|
|
* @see theme()
|
|
* @see template_preprocess()
|
|
*/
|
|
function template_process(&$variables, $hook) {
|
|
// Flatten out classes.
|
|
$variables['classes'] = implode(' ', $variables['classes_array']);
|
|
|
|
// Flatten out attributes, title_attributes, and content_attributes.
|
|
// Because this function can be called very often, and often with empty
|
|
// attributes, optimize performance by only calling drupal_attributes() if
|
|
// necessary.
|
|
$variables['attributes'] = $variables['attributes_array'] ? drupal_attributes($variables['attributes_array']) : '';
|
|
$variables['title_attributes'] = $variables['title_attributes_array'] ? drupal_attributes($variables['title_attributes_array']) : '';
|
|
$variables['content_attributes'] = $variables['content_attributes_array'] ? drupal_attributes($variables['content_attributes_array']) : '';
|
|
}
|
|
|
|
/**
|
|
* Preprocess variables for html.tpl.php
|
|
*
|
|
* @see system_elements()
|
|
* @see html.tpl.php
|
|
*/
|
|
function template_preprocess_html(&$variables) {
|
|
// Compile a list of classes that are going to be applied to the body element.
|
|
// This allows advanced theming based on context (home page, node of certain type, etc.).
|
|
// Add a class that tells us whether we're on the front page or not.
|
|
$variables['classes_array'][] = $variables['is_front'] ? 'front' : 'not-front';
|
|
// Add a class that tells us whether the page is viewed by an authenticated user or not.
|
|
$variables['classes_array'][] = $variables['logged_in'] ? 'logged-in' : 'not-logged-in';
|
|
|
|
// Add information about the number of sidebars.
|
|
if (!empty($variables['page']['sidebar_first']) && !empty($variables['page']['sidebar_second'])) {
|
|
$variables['classes_array'][] = 'two-sidebars';
|
|
}
|
|
elseif (!empty($variables['page']['sidebar_first'])) {
|
|
$variables['classes_array'][] = 'one-sidebar sidebar-first';
|
|
}
|
|
elseif (!empty($variables['page']['sidebar_second'])) {
|
|
$variables['classes_array'][] = 'one-sidebar sidebar-second';
|
|
}
|
|
else {
|
|
$variables['classes_array'][] = 'no-sidebars';
|
|
}
|
|
|
|
// Populate the body classes.
|
|
if ($suggestions = theme_get_suggestions(arg(), 'page', '-')) {
|
|
foreach ($suggestions as $suggestion) {
|
|
if ($suggestion != 'page-front') {
|
|
// Add current suggestion to page classes to make it possible to theme
|
|
// the page depending on the current page type (e.g. node, admin, user,
|
|
// etc.) as well as more specific data like node-12 or node-edit.
|
|
$variables['classes_array'][] = drupal_html_class($suggestion);
|
|
}
|
|
}
|
|
}
|
|
|
|
// If on an individual node page, add the node type to body classes.
|
|
if ($node = menu_get_object()) {
|
|
$variables['classes_array'][] = drupal_html_class('node-type-' . $node->type);
|
|
}
|
|
|
|
// RDFa allows annotation of XHTML pages with RDF data, while GRDDL provides
|
|
// mechanisms for extraction of this RDF content via XSLT transformation
|
|
// using an associated GRDDL profile.
|
|
$variables['rdf_namespaces'] = drupal_get_rdf_namespaces();
|
|
$variables['grddl_profile'] = 'http://www.w3.org/1999/xhtml/vocab';
|
|
$variables['language'] = $GLOBALS['language'];
|
|
$variables['language']->dir = $GLOBALS['language']->direction ? 'rtl' : 'ltr';
|
|
|
|
// Add favicon.
|
|
if (theme_get_setting('toggle_favicon')) {
|
|
$favicon = theme_get_setting('favicon');
|
|
$type = theme_get_setting('favicon_mimetype');
|
|
drupal_add_html_head_link(array('rel' => 'shortcut icon', 'href' => drupal_strip_dangerous_protocols($favicon), 'type' => $type));
|
|
}
|
|
|
|
// Construct page title.
|
|
if (drupal_get_title()) {
|
|
$head_title = array(
|
|
'title' => strip_tags(drupal_get_title()),
|
|
'name' => check_plain(variable_get('site_name', 'Drupal')),
|
|
);
|
|
}
|
|
else {
|
|
$head_title = array('name' => check_plain(variable_get('site_name', 'Drupal')));
|
|
if (variable_get('site_slogan', '')) {
|
|
$head_title['slogan'] = filter_xss_admin(variable_get('site_slogan', ''));
|
|
}
|
|
}
|
|
$variables['head_title_array'] = $head_title;
|
|
$variables['head_title'] = implode(' | ', $head_title);
|
|
|
|
// Populate the page template suggestions.
|
|
if ($suggestions = theme_get_suggestions(arg(), 'html')) {
|
|
$variables['theme_hook_suggestions'] = $suggestions;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Preprocess variables for page.tpl.php
|
|
*
|
|
* Most themes utilize their own copy of page.tpl.php. The default is located
|
|
* inside "modules/system/page.tpl.php". Look in there for the full list of
|
|
* variables.
|
|
*
|
|
* Uses the arg() function to generate a series of page template suggestions
|
|
* based on the current path.
|
|
*
|
|
* Any changes to variables in this preprocessor should also be changed inside
|
|
* template_preprocess_maintenance_page() to keep all of them consistent.
|
|
*
|
|
* @see drupal_render_page()
|
|
* @see template_process_page()
|
|
* @see page.tpl.php
|
|
*/
|
|
function template_preprocess_page(&$variables) {
|
|
// Move some variables to the top level for themer convenience and template cleanliness.
|
|
$variables['show_messages'] = $variables['page']['#show_messages'];
|
|
|
|
foreach (system_region_list($GLOBALS['theme'], REGIONS_ALL, FALSE) as $region_key) {
|
|
if (!isset($variables['page'][$region_key])) {
|
|
$variables['page'][$region_key] = array();
|
|
}
|
|
if ($region_content = drupal_get_region_content($region_key)) {
|
|
$variables['page'][$region_key][]['#markup'] = $region_content;
|
|
}
|
|
}
|
|
|
|
// Set up layout variable.
|
|
$variables['layout'] = 'none';
|
|
if (!empty($variables['page']['sidebar_first'])) {
|
|
$variables['layout'] = 'first';
|
|
}
|
|
if (!empty($variables['page']['sidebar_second'])) {
|
|
$variables['layout'] = ($variables['layout'] == 'first') ? 'both' : 'second';
|
|
}
|
|
|
|
$variables['base_path'] = base_path();
|
|
$variables['front_page'] = url();
|
|
$variables['feed_icons'] = drupal_get_feeds();
|
|
$variables['language'] = $GLOBALS['language'];
|
|
$variables['language']->dir = $GLOBALS['language']->direction ? 'rtl' : 'ltr';
|
|
$variables['logo'] = theme_get_setting('logo');
|
|
$variables['main_menu'] = theme_get_setting('toggle_main_menu') ? menu_main_menu() : array();
|
|
$variables['secondary_menu'] = theme_get_setting('toggle_secondary_menu') ? menu_secondary_menu() : array();
|
|
$variables['action_links'] = menu_local_actions();
|
|
$variables['site_name'] = (theme_get_setting('toggle_name') ? filter_xss_admin(variable_get('site_name', 'Drupal')) : '');
|
|
$variables['site_slogan'] = (theme_get_setting('toggle_slogan') ? filter_xss_admin(variable_get('site_slogan', '')) : '');
|
|
$variables['tabs'] = menu_local_tabs();
|
|
|
|
if ($node = menu_get_object()) {
|
|
$variables['node'] = $node;
|
|
}
|
|
|
|
// Populate the page template suggestions.
|
|
if ($suggestions = theme_get_suggestions(arg(), 'page')) {
|
|
$variables['theme_hook_suggestions'] = $suggestions;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Process variables for page.tpl.php
|
|
*
|
|
* Perform final addition of variables before passing them into the template.
|
|
* To customize these variables, simply set them in an earlier step.
|
|
*
|
|
* @see template_preprocess_page()
|
|
* @see page.tpl.php
|
|
*/
|
|
function template_process_page(&$variables) {
|
|
if (!isset($variables['breadcrumb'])) {
|
|
// Build the breadcrumb last, so as to increase the chance of being able to
|
|
// re-use the cache of an already rendered menu containing the active link
|
|
// for the current page.
|
|
// @see menu_tree_page_data()
|
|
$variables['breadcrumb'] = theme('breadcrumb', array('breadcrumb' => drupal_get_breadcrumb()));
|
|
}
|
|
if (!isset($variables['title'])) {
|
|
$variables['title'] = drupal_get_title();
|
|
}
|
|
|
|
// Generate messages last in order to capture as many as possible for the
|
|
// current page.
|
|
if (!isset($variables['messages'])) {
|
|
$variables['messages'] = $variables['show_messages'] ? theme('status_messages') : '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Process variables for html.tpl.php
|
|
*
|
|
* Perform final addition and modification of variables before passing into
|
|
* the template. To customize these variables, call drupal_render() on elements
|
|
* in $variables['page'] during THEME_preprocess_page().
|
|
*
|
|
* @see template_preprocess_html()
|
|
* @see html.tpl.php
|
|
*/
|
|
function template_process_html(&$variables) {
|
|
// Render page_top and page_bottom into top level variables.
|
|
$variables['page_top'] = drupal_render($variables['page']['page_top']);
|
|
$variables['page_bottom'] = drupal_render($variables['page']['page_bottom']);
|
|
// Place the rendered HTML for the page body into a top level variable.
|
|
$variables['page'] = $variables['page']['#children'];
|
|
$variables['page_bottom'] .= drupal_get_js('footer');
|
|
|
|
$variables['head'] = drupal_get_html_head();
|
|
$variables['css'] = drupal_add_css();
|
|
$variables['styles'] = drupal_get_css();
|
|
$variables['scripts'] = drupal_get_js();
|
|
}
|
|
|
|
/**
|
|
* Generate an array of suggestions from path arguments.
|
|
*
|
|
* This is typically called for adding to the 'theme_hook_suggestions' or
|
|
* 'classes_array' variables from within preprocess functions, when wanting to
|
|
* base the additional suggestions on the path of the current page.
|
|
*
|
|
* @param $args
|
|
* An array of path arguments, such as from function arg().
|
|
* @param $base
|
|
* A string identifying the base 'thing' from which more specific suggestions
|
|
* are derived. For example, 'page' or 'html'.
|
|
* @param $delimiter
|
|
* The string used to delimit increasingly specific information. The default
|
|
* of '__' is appropriate for theme hook suggestions. '-' is appropriate for
|
|
* extra classes.
|
|
*
|
|
* @return
|
|
* An array of suggestions, suitable for adding to
|
|
* $variables['theme_hook_suggestions'] within a preprocess function or to
|
|
* $variables['classes_array'] if the suggestions represent extra CSS classes.
|
|
*/
|
|
function theme_get_suggestions($args, $base, $delimiter = '__') {
|
|
|
|
// Build a list of suggested theme hooks or body classes in order of
|
|
// specificity. One suggestion is made for every element of the current path,
|
|
// though numeric elements are not carried to subsequent suggestions. For
|
|
// example, for $base='page', http://www.example.com/node/1/edit would result
|
|
// in the following suggestions and body classes:
|
|
//
|
|
// page__node page-node
|
|
// page__node__% page-node-%
|
|
// page__node__1 page-node-1
|
|
// page__node__edit page-node-edit
|
|
|
|
$suggestions = array();
|
|
$prefix = $base;
|
|
foreach ($args as $arg) {
|
|
// Remove slashes or null per SA-CORE-2009-003 and change - (hyphen) to _
|
|
// (underscore).
|
|
//
|
|
// When we discover templates in @see drupal_find_theme_templates,
|
|
// hyphens (-) are converted to underscores (_) before the theme hook
|
|
// is registered. We do this because the hyphens used for delimiters
|
|
// in hook suggestions cannot be used in the function names of the
|
|
// associated preprocess functions. Any page templates designed to be used
|
|
// on paths that contain a hyphen are also registered with these hyphens
|
|
// converted to underscores so here we must convert any hyphens in path
|
|
// arguments to underscores here before fetching theme hook suggestions
|
|
// to ensure the templates are appropriately recognized.
|
|
$arg = str_replace(array("/", "\\", "\0", '-'), array('', '', '', '_'), $arg);
|
|
// The percent acts as a wildcard for numeric arguments since
|
|
// asterisks are not valid filename characters on many filesystems.
|
|
if (is_numeric($arg)) {
|
|
$suggestions[] = $prefix . $delimiter . '%';
|
|
}
|
|
$suggestions[] = $prefix . $delimiter . $arg;
|
|
if (!is_numeric($arg)) {
|
|
$prefix .= $delimiter . $arg;
|
|
}
|
|
}
|
|
if (drupal_is_front_page()) {
|
|
// Front templates should be based on root only, not prefixed arguments.
|
|
$suggestions[] = $base . $delimiter . 'front';
|
|
}
|
|
|
|
return $suggestions;
|
|
}
|
|
|
|
/**
|
|
* Process variables for maintenance-page.tpl.php.
|
|
*
|
|
* The variables array generated here is a mirror of
|
|
* template_preprocess_page(). This preprocessor will run its course when
|
|
* theme_maintenance_page() is invoked. An alternate template file of
|
|
* maintenance-page--offline.tpl.php can be used when the database is offline to
|
|
* hide errors and completely replace the content.
|
|
*
|
|
* The $variables array contains the following arguments:
|
|
* - $content
|
|
*
|
|
* @see maintenance-page.tpl.php
|
|
*/
|
|
function template_preprocess_maintenance_page(&$variables) {
|
|
// Add favicon
|
|
if (theme_get_setting('toggle_favicon')) {
|
|
$favicon = theme_get_setting('favicon');
|
|
$type = theme_get_setting('favicon_mimetype');
|
|
drupal_add_html_head_link(array('rel' => 'shortcut icon', 'href' => drupal_strip_dangerous_protocols($favicon), 'type' => $type));
|
|
}
|
|
|
|
global $theme;
|
|
// Retrieve the theme data to list all available regions.
|
|
$theme_data = list_themes();
|
|
$regions = $theme_data[$theme]->info['regions'];
|
|
|
|
// Get all region content set with drupal_add_region_content().
|
|
foreach (array_keys($regions) as $region) {
|
|
// Assign region to a region variable.
|
|
$region_content = drupal_get_region_content($region);
|
|
isset($variables[$region]) ? $variables[$region] .= $region_content : $variables[$region] = $region_content;
|
|
}
|
|
|
|
// Setup layout variable.
|
|
$variables['layout'] = 'none';
|
|
if (!empty($variables['sidebar_first'])) {
|
|
$variables['layout'] = 'first';
|
|
}
|
|
if (!empty($variables['sidebar_second'])) {
|
|
$variables['layout'] = ($variables['layout'] == 'first') ? 'both' : 'second';
|
|
}
|
|
|
|
// Construct page title
|
|
if (drupal_get_title()) {
|
|
$head_title = array(
|
|
'title' => strip_tags(drupal_get_title()),
|
|
'name' => variable_get('site_name', 'Drupal'),
|
|
);
|
|
}
|
|
else {
|
|
$head_title = array('name' => variable_get('site_name', 'Drupal'));
|
|
if (variable_get('site_slogan', '')) {
|
|
$head_title['slogan'] = variable_get('site_slogan', '');
|
|
}
|
|
}
|
|
|
|
// set the default language if necessary
|
|
$language = isset($GLOBALS['language']) ? $GLOBALS['language'] : language_default();
|
|
|
|
$variables['head_title_array'] = $head_title;
|
|
$variables['head_title'] = implode(' | ', $head_title);
|
|
$variables['base_path'] = base_path();
|
|
$variables['front_page'] = url();
|
|
$variables['breadcrumb'] = '';
|
|
$variables['feed_icons'] = '';
|
|
$variables['help'] = '';
|
|
$variables['language'] = $language;
|
|
$variables['language']->dir = $language->direction ? 'rtl' : 'ltr';
|
|
$variables['logo'] = theme_get_setting('logo');
|
|
$variables['messages'] = $variables['show_messages'] ? theme('status_messages') : '';
|
|
$variables['main_menu'] = array();
|
|
$variables['secondary_menu'] = array();
|
|
$variables['site_name'] = (theme_get_setting('toggle_name') ? variable_get('site_name', 'Drupal') : '');
|
|
$variables['site_slogan'] = (theme_get_setting('toggle_slogan') ? variable_get('site_slogan', '') : '');
|
|
$variables['tabs'] = '';
|
|
$variables['title'] = drupal_get_title();
|
|
|
|
// Compile a list of classes that are going to be applied to the body element.
|
|
$variables['classes_array'][] = 'in-maintenance';
|
|
if (isset($variables['db_is_active']) && !$variables['db_is_active']) {
|
|
$variables['classes_array'][] = 'db-offline';
|
|
}
|
|
if ($variables['layout'] == 'both') {
|
|
$variables['classes_array'][] = 'two-sidebars';
|
|
}
|
|
elseif ($variables['layout'] == 'none') {
|
|
$variables['classes_array'][] = 'no-sidebars';
|
|
}
|
|
else {
|
|
$variables['classes_array'][] = 'one-sidebar sidebar-' . $variables['layout'];
|
|
}
|
|
|
|
// Dead databases will show error messages so supplying this template will
|
|
// allow themers to override the page and the content completely.
|
|
if (isset($variables['db_is_active']) && !$variables['db_is_active']) {
|
|
$variables['theme_hook_suggestion'] = 'maintenance_page__offline';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Theme process function for theme_maintenance_field().
|
|
*
|
|
* The variables array generated here is a mirror of template_process_html().
|
|
* This processor will run its course when theme_maintenance_page() is invoked.
|
|
*
|
|
* @see maintenance-page.tpl.php
|
|
* @see template_process_html()
|
|
*/
|
|
function template_process_maintenance_page(&$variables) {
|
|
$variables['head'] = drupal_get_html_head();
|
|
$variables['css'] = drupal_add_css();
|
|
$variables['styles'] = drupal_get_css();
|
|
$variables['scripts'] = drupal_get_js();
|
|
}
|
|
|
|
/**
|
|
* Preprocess variables for region.tpl.php
|
|
*
|
|
* Prepares the values passed to the theme_region function to be passed into a
|
|
* pluggable template engine. Uses the region name to generate a template file
|
|
* suggestions. If none are found, the default region.tpl.php is used.
|
|
*
|
|
* @see drupal_region_class()
|
|
* @see region.tpl.php
|
|
*/
|
|
function template_preprocess_region(&$variables) {
|
|
// Create the $content variable that templates expect.
|
|
$variables['content'] = $variables['elements']['#children'];
|
|
$variables['region'] = $variables['elements']['#region'];
|
|
|
|
$variables['classes_array'][] = drupal_region_class($variables['region']);
|
|
$variables['theme_hook_suggestions'][] = 'region__' . $variables['region'];
|
|
}
|
|
|
|
/**
|
|
* Preprocesses variables for theme_username().
|
|
*
|
|
* Modules that make any changes to variables like 'name' or 'extra' must insure
|
|
* that the final string is safe to include directly in the output by using
|
|
* check_plain() or filter_xss().
|
|
*
|
|
* @see template_process_username()
|
|
*/
|
|
function template_preprocess_username(&$variables) {
|
|
$account = $variables['account'];
|
|
|
|
$variables['extra'] = '';
|
|
if (empty($account->uid)) {
|
|
$variables['uid'] = 0;
|
|
if (theme_get_setting('toggle_comment_user_verification')) {
|
|
$variables['extra'] = ' (' . t('not verified') . ')';
|
|
}
|
|
}
|
|
else {
|
|
$variables['uid'] = (int) $account->uid;
|
|
}
|
|
|
|
// Set the name to a formatted name that is safe for printing and
|
|
// that won't break tables by being too long. Keep an unshortened,
|
|
// unsanitized version, in case other preprocess functions want to implement
|
|
// their own shortening logic or add markup. If they do so, they must ensure
|
|
// that $variables['name'] is safe for printing.
|
|
$name = $variables['name_raw'] = format_username($account);
|
|
if (drupal_strlen($name) > 20) {
|
|
$name = drupal_substr($name, 0, 15) . '...';
|
|
}
|
|
$variables['name'] = check_plain($name);
|
|
|
|
$variables['profile_access'] = user_access('access user profiles');
|
|
$variables['link_attributes'] = array();
|
|
// Populate link path and attributes if appropriate.
|
|
if ($variables['uid'] && $variables['profile_access']) {
|
|
// We are linking to a local user.
|
|
$variables['link_attributes'] = array('title' => t('View user profile.'));
|
|
$variables['link_path'] = 'user/' . $variables['uid'];
|
|
}
|
|
elseif (!empty($account->homepage)) {
|
|
// Like the 'class' attribute, the 'rel' attribute can hold a
|
|
// space-separated set of values, so initialize it as an array to make it
|
|
// easier for other preprocess functions to append to it.
|
|
$variables['link_attributes'] = array('rel' => array('nofollow'));
|
|
$variables['link_path'] = $account->homepage;
|
|
$variables['homepage'] = $account->homepage;
|
|
}
|
|
// We do not want the l() function to check_plain() a second time.
|
|
$variables['link_options']['html'] = TRUE;
|
|
// Set a default class.
|
|
$variables['attributes_array'] = array('class' => array('username'));
|
|
}
|
|
|
|
/**
|
|
* Processes variables for theme_username().
|
|
*
|
|
* @see template_preprocess_username()
|
|
*/
|
|
function template_process_username(&$variables) {
|
|
// Finalize the link_options array for passing to the l() function.
|
|
// This is done in the process phase so that attributes may be added by
|
|
// modules or the theme during the preprocess phase.
|
|
if (isset($variables['link_path'])) {
|
|
// $variables['attributes_array'] contains attributes that should be applied
|
|
// regardless of whether a link is being rendered or not.
|
|
// $variables['link_attributes'] contains attributes that should only be
|
|
// applied if a link is being rendered. Preprocess functions are encouraged
|
|
// to use the former unless they want to add attributes on the link only.
|
|
// If a link is being rendered, these need to be merged. Some attributes are
|
|
// themselves arrays, so the merging needs to be recursive.
|
|
$variables['link_options']['attributes'] = array_merge_recursive($variables['link_attributes'], $variables['attributes_array']);
|
|
}
|
|
}
|