themekey_compat.module in ThemeKey 7.2

Integration of different theme switching modules into ThemeKey and its theme switching rule chain.

@author Markus Kalkbrenner | bio.logis GmbH

See also

themekey.module

http://drupal.org/user/124705

File

themekey_compat.module

<?php

/**
 * @file
 * Integration of different theme switching modules into ThemeKey and its theme switching rule chain.
 * @see themekey.module
 *
 * @author Markus Kalkbrenner | bio.logis GmbH
 *   @see http://drupal.org/user/124705
 */

/**
 * Implements hook_menu().
 */
function themekey_compat_menu() {
  $items = array();
  $items['admin/config/user-interface/themekey/settings/compat'] = array(
    'title' => 'Compatibility',
    'access callback' => 'user_access',
    'access arguments' => array(
      'administer themekey settings',
    ),
    'file' => 'themekey_compat_admin.inc',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'themekey_compat_settings_form',
    ),
    'type' => MENU_LOCAL_TASK,
    'weight' => 11,
  );
  return $items;
}

/**
 * Implements hook_themekey_properties().
 *
 * Provides additional properties for the ThemeKey module:
 *   themekey_compat:module_MODULE_triggers_theme
 *
 * @return
 *   array of themekey properties
 */
function themekey_compat_themekey_properties() {

  // Attributes for properties
  $attributes = array();

  // Mapping functions
  $maps = array();
  foreach (variable_get('themekey_compat_modules_enabled', array()) as $module) {
    $attributes['themekey_compat:module_' . $module . '_triggers_theme'] = array(
      'description' => t("The property, themekey_compat:module_' . {$module} . '_triggers_theme, could not be selected from the property drop-down. You get this static property by activating !link. Afterwards, you can move the property to any position in the rule chain. When done, it triggers the switch to the theme assigned to the current node using ThemeKey UI.", array(
        '!link' => l(t('Show theme option in create/edit node forms'), 'admin/config/user-interface/themekey/settings/ui'),
      )),
      'page cache' => THEMEKEY_PAGECACHE_SUPPORTED,
      'static' => TRUE,
    );
    $maps[] = array(
      'src' => 'system:dummy',
      'dst' => 'themekey_compat:module_' . $module . '_triggers_theme',
      'callback' => 'themekey_compat_dummy2theme',
      'args' => array(
        'module' => $module,
      ),
    );
  }
  return array(
    'attributes' => $attributes,
    'maps' => $maps,
  );
}

/**
 * This function implements the interface of a ThemeKey
 * mapping function but doesn't set a ThemeKey property's
 * value. It sets the Drupal static themekey_custom_theme
 * which will cause ThemeKey to use this theme.
 *
 * @param $dummy
 *   dummy
 *
 * @return
 *   string "static" if global custom theme has been set
 *   or NULL if no theme has been assigned to the node
 */
function themekey_compat_dummy2theme($dummy, $args) {
  $custom_theme =& drupal_static('themekey_custom_theme', '');
  $function = $args['module'] . '_custom_theme';
  if (function_exists($function)) {
    $custom_theme = $function();
    if ($custom_theme && (!in_array($args['module'], variable_get('themekey_compat_modules_enabled', array())) || variable_get('theme_default', 'bartik') != $custom_theme)) {
      if (variable_get('themekey_debug_trace_rule_switching', FALSE)) {
        themekey_set_debug_message('Theme set to %theme by module %module.', array(
          '%theme' => $custom_theme,
          '%module' => $args['module'],
        ));
      }
      return 'static';
    }
  }
  return NULL;
}

/**
 * Implements hook_modules_disabled().
 */
function themekey_compat_modules_disabled($modules) {
  require_once DRUPAL_ROOT . '/' . drupal_get_path('module', 'themekey') . '/themekey_build.inc';
  variable_set('themekey_compat_modules_enabled', array_diff(variable_get('themekey_compat_modules_enabled', array()), $modules));
  foreach ($modules as $module) {
    themekey_update_static_rule('themekey_compat:module_' . $module . '_triggers_theme', FALSE);
  }
}
function themekey_compat_module_implements_alter(&$implementations, $hook) {
  if ('custom_theme' == $hook) {
    foreach (variable_get('themekey_compat_modules_enabled', array()) as $module) {
      unset($implementations[$module]);
    }
  }
}

Functions

Name	Description
themekey_compat_dummy2theme	This function implements the interface of a ThemeKey mapping function but doesn't set a ThemeKey property's value. It sets the Drupal static themekey_custom_theme which will cause ThemeKey to use this theme.
themekey_compat_menu	Implements hook_menu().
themekey_compat_modules_disabled	Implements hook_modules_disabled().
themekey_compat_module_implements_alter
themekey_compat_themekey_properties	Implements hook_themekey_properties().