| 1 |
<?php |
| 2 |
|
| 3 |
/* |
| 4 |
* frontend controller |
| 5 |
* accessible as $polylang global object |
| 6 |
* |
| 7 |
* properties: |
| 8 |
* options => inherited, reference to Polylang options array |
| 9 |
* model => inherited, reference to PLL_Model object |
| 10 |
* links_model => inherited, reference to PLL_Links_Model object |
| 11 |
* links => reference to PLL_Links object |
| 12 |
* choose_lang => reference to PLL_Choose_lang object |
| 13 |
* curlang => current language |
| 14 |
* filters => reference to PLL_Filters object |
| 15 |
* filters_search => reference to PLL_Frontend_Filters_Search object |
| 16 |
* nav_menu => reference to PLL_Frontend_Nav_Menu object |
| 17 |
* auto_translate => optional, reference to PLL_Auto_Translate object |
| 18 |
* |
| 19 |
* @since 1.2 |
| 20 |
*/ |
| 21 |
class PLL_Frontend extends PLL_Base{ |
| 22 |
public $curlang; |
| 23 |
public $links, $choose_lang, $filters, $filters_search, $auto_translate; |
| 24 |
|
| 25 |
/* |
| 26 |
* constructor |
| 27 |
* |
| 28 |
* @since 1.2 |
| 29 |
* |
| 30 |
* @param object $links_model |
| 31 |
*/ |
| 32 |
public function __construct(&$links_model) { |
| 33 |
parent::__construct($links_model); |
| 34 |
|
| 35 |
add_action('pll_language_defined', array(&$this, 'pll_language_defined'), 1, 2); |
| 36 |
|
| 37 |
// filters posts by language |
| 38 |
add_filter('parse_query', array(&$this, 'parse_query'), 6); |
| 39 |
|
| 40 |
// not before 'check_language_code_in_url' |
| 41 |
if (!defined('PLL_AUTO_TRANSLATE') || PLL_AUTO_TRANSLATE) |
| 42 |
add_action('wp', array(&$this, 'auto_translate'), 20); |
| 43 |
} |
| 44 |
|
| 45 |
/* |
| 46 |
* setups url modifications based on the links mode |
| 47 |
* setups the language chooser based on options |
| 48 |
* |
| 49 |
* @since 1.2 |
| 50 |
* |
| 51 |
* @param object $links_model |
| 52 |
*/ |
| 53 |
public function init() { |
| 54 |
$this->links = new PLL_Frontend_Links($this); |
| 55 |
|
| 56 |
$c = array('Content', 'Url', 'Url', 'Domain'); |
| 57 |
$class = 'PLL_Choose_Lang_' . $c[$this->options['force_lang'] * (get_option('permalink_structure') ? 1 : 0 )]; |
| 58 |
$this->choose_lang = new $class($this); |
| 59 |
} |
| 60 |
|
| 61 |
/* |
| 62 |
* setups filters and nav menus once the language has been defined |
| 63 |
* |
| 64 |
* @since 1.2 |
| 65 |
* |
| 66 |
* @param string $slug current language slug |
| 67 |
* @param object $curlang current language object |
| 68 |
*/ |
| 69 |
public function pll_language_defined($slug, $curlang) { |
| 70 |
$this->curlang = $curlang; |
| 71 |
|
| 72 |
// filters |
| 73 |
$this->filters = new PLL_Frontend_Filters($this); |
| 74 |
$this->filters_search = new PLL_Frontend_Filters_Search($this); |
| 75 |
|
| 76 |
// nav menu |
| 77 |
$this->nav_menu = new PLL_Frontend_Nav_Menu($this); |
| 78 |
} |
| 79 |
|
| 80 |
/* |
| 81 |
* modifies some query vars to "hide" that the language is a taxonomy and avoid conflicts |
| 82 |
* |
| 83 |
* @since 1.2 |
| 84 |
* |
| 85 |
* @param object $query WP_Query object |
| 86 |
*/ |
| 87 |
public function parse_query($query) { |
| 88 |
$qv = $query->query_vars; |
| 89 |
|
| 90 |
// to avoid conflict beetwen taxonomies |
| 91 |
// FIXME generalize post format like taxonomies (untranslated but filtered) |
| 92 |
$has_tax = false; |
| 93 |
if (isset($query->tax_query->queries)) |
| 94 |
foreach ($query->tax_query->queries as $tax) |
| 95 |
if ('post_format' != $tax['taxonomy']) |
| 96 |
$has_tax = true; |
| 97 |
|
| 98 |
// allow filtering recent posts and secondary queries by the current language |
| 99 |
// take care not to break queries for non visible post types such as nav_menu_items |
| 100 |
// do not filter if lang is set to an empty value |
| 101 |
// do not filter single page and translated taxonomies to avoid conflicts |
| 102 |
if (!empty($this->curlang) && !isset($qv['lang']) && !$has_tax && empty($qv['page_id']) && empty($qv['pagename']) && (empty($qv['post_type']) || $this->model->is_translated_post_type($qv['post_type']))) { |
| 103 |
$this->choose_lang->set_lang_query_var($query, $this->curlang); |
| 104 |
} |
| 105 |
|
| 106 |
// modifies query vars when the language is queried |
| 107 |
if (!empty($qv['lang'])) { |
| 108 |
// remove pages query when the language is set unless we do a search |
| 109 |
if (empty($qv['post_type']) && !$query->is_search) |
| 110 |
$query->set('post_type', 'post'); |
| 111 |
|
| 112 |
// unset the is_archive flag for language pages to prevent loading the archive template |
| 113 |
// keep archive flag for comment feed otherwise the language filter does not work |
| 114 |
if (!$query->is_comment_feed && !$query->is_post_type_archive && !$query->is_date && !$query->is_author && !$query->is_category && !$query->is_tag && !$query->is_tax('post_format')) |
| 115 |
$query->is_archive = false; |
| 116 |
|
| 117 |
// unset the is_tax flag for authors pages and post types archives |
| 118 |
// FIXME Should I do this for other cases? |
| 119 |
if ($query->is_author || $query->is_post_type_archive || $query->is_date || $query->is_search) { |
| 120 |
$query->is_tax = false; |
| 121 |
unset($query->queried_object); |
| 122 |
} |
| 123 |
} |
| 124 |
} |
| 125 |
|
| 126 |
/* |
| 127 |
* auto translate posts and terms ids |
| 128 |
* |
| 129 |
* @since 1.2 |
| 130 |
*/ |
| 131 |
public function auto_translate() { |
| 132 |
$this->auto_translate = new PLL_Frontend_Auto_Translate($this); |
| 133 |
} |
| 134 |
} |
| 135 |
|
| 136 |
|
