/**
* Creates the custom rewrite rules.
* @return array $rules.
*/
function uls_create_custom_rewrite_rules()
{
global $wp_rewrite;
//get available languages
// $languages = '(en|es|en_US|es_ES)';
$languages = "(" . implode("|", array_values(uls_get_available_languages())) . ")";
$wp_rewrite->add_rewrite_tag('%lang%', $languages, 'lang=');
//create prefixed rules
$new_rules = array($languages . '/?$' => 'index.php?lang=$matches[1]');
foreach ($wp_rewrite->rules as $left => $right) {
//ignore attachment rules
//if(false === strpos($left, '/attachment/')){
$new_rules[$languages . '/' . $left] = preg_replace_callback('/matches\\[(\\d{1,2})\\]/', 'uls_replace_matched_rule', $right) . '&lang=$matches[1]';
//}
}
//add new rules
//_db2($wp_rewrite->rules);
$wp_rewrite->rules = $new_rules + $wp_rewrite->rules;
//_db2($wp_rewrite->rules);
return $wp_rewrite->rules;
}
static function create_table_available_language($options)
{
$languages = uls_get_available_languages(false);
// get the all languages available in the wp
$options = get_option('uls_settings');
// get information from DB
$available_language = isset($options['available_language']) ? $options['available_language'] : uls_get_available_languages(false);
// get the information that actually is in the DB
wp_enqueue_script('uls_languages_js', plugins_url('js/uls-languages-tap.js', __FILE__), array('jquery'));
?>
<table id="menu-locations-table" class="">
<thead>
<tr>
<th>Enable</th>
<th>Language</th>
<th>Frontend flag optional</th>
<th>Optional flag</th>
<th>Remove</th>
</tr>
</thead>
<tbody>
<?php
foreach ($languages as $lang_name => $lang_code) {
?>
<tr>
<?php
$checked = isset($available_language[$lang_name]) ? 'checked' : '';
?>
<td>
<input type="checkbox" name="uls_available_language[<?php
echo $lang_name;
?>
]" value="<?php
echo $lang_code;
?>
" <?php
echo $checked;
?>
/>
</td>
<td>
<!--img src="<?php
echo plugins_url("css/blank.gif", __FILE__);
?>
" style="margin-right:5px;" class="flag_16x11 flag-<?php
echo strtolower(substr($lang_code, -2));
?>
" alt="<?php
echo $lang_name;
?>
" title="<?php
echo $lang_name;
?>
" /-->
<img src="<?php
echo plugins_url("css/blank.gif", __FILE__);
?>
" style="margin-right:5px;" class="flag_16x11 flag-<?php
echo Codes::languageCode2CountryCode($lang_code);
?>
" alt="<?php
echo $lang_name;
?>
" title="<?php
echo $lang_name;
?>
" />
<span><?php
echo $lang_name;
?>
</span>
</td>
<td>
<input type="file" name="uls_available_language_new_flags[<?php
echo $lang_name;
?>
]" value="" title="<?php
echo __("the default dimension is 32x32 px, it is neccessary to keep the aesthetics");
?>
" />
</td>
<td>
<?php
if (isset($options['uls_available_language_new_flags']) && isset($options['uls_available_language_new_flags'][$lang_name])) {
?>
<img src="<?php
echo $options['uls_available_language_new_flags'][$lang_name]['url'];
?>
" class="optional_flag" alt="<?php
echo $lang_name;
?>
" title="<?php
echo $lang_name;
?>
" ></img>
<?php
}
?>
</td>
<td>
<?php
if (isset($options['uls_available_language_new_flags']) && isset($options['uls_available_language_new_flags'][$lang_name])) {
?>
<input type="checkbox" name="uls_available_language_del_flags[<?php
echo $lang_name;
?>
]" value="" />
<?php
}
?>
</td>
</tr>
<?php
}
?>
</tbody>
</table>
<input type="hidden" name="available_languages" value="available_languages" >
<br/>
<table id="menu-locations-table" class="">
<thead>
<tr>
<th>Install Additional Languages</th>
</tr>
</thead>
<tbody>
<tr>
<?php
require_once ABSPATH . '/wp-admin/includes/translation-install.php';
$translations = wp_get_available_translations();
uasort($translations, array(__CLASS__, 'sort_translations_callback'));
// check the requirement to can download language
$execute_languages = true;
$zip_message = '';
// meessage information
$ssl_message = '';
// meessage information
if (!class_exists('ZipArchive')) {
$zip_message = '<p class="bg-warning">';
$zip_message .= __("Missing class ZipArchive. Please install and retry later.");
$zip_message .= '</p>';
$execute_languages = false;
}
if (!extension_loaded('openssl')) {
$ssl_message = '<p class="bg-warning">';
$ssl_message .= __("Missing extension openssl. Please enable openss extension in your php.ini and retry later.");
$ssl_message .= '</p>';
$execute_languages = false;
}
echo "<td>" . __('Select a language') . ": </td><td><select id='tblang'>";
if ($execute_languages) {
foreach ($translations as $language) {
echo "<option value='" . $language['language'] . ";" . $language['package'] . ";" . $language['english_name'] . "'>";
echo $language['english_name'] . " - " . $language['native_name'] . "</option>";
}
}
echo "</select>";
if ($execute_languages) {
?>
<input type="button"
class="button-primary"
id="button-download-language"
value="<?php
echo __('Download', 'user-language-switch');
?>
" />
<?php
}
?>
</td>
</tr>
</tbody>
</table>
<div id="div_message_download" class="div_message_download">
<?php
if (isset($_GET['success'])) {
if ($_GET['success'] == 1) {
$ok_message = '<p class="bg-success">';
$ok_message .= __("Language successfully downloaded!!!");
$ok_message .= '</p>';
echo $ok_message;
} else {
if ($_GET['success'] == 0) {
$error_message = '<p class="bg-warning">';
$error_message .= __("File writing permission denied. Please fix permissions to directory wp-content/languages.");
$error_message .= '</p>';
echo $error_message;
}
}
}
echo $zip_message;
echo $ssl_message;
?>
</div>
<?php
}
/**
* Redirect user after successful login. It removes languages in the URL if it is an admin URL.
*
* @param string $redirect_to URL to redirect to.
* @param string $request URL the user is coming from.
* @param object $user Logged user's data.
* @return string
*/
function uls_login_redirect($redirect_to, $request, $user)
{
//check if the URL is an admin URL
if (false !== strpos($redirect_to, '/wp-admin')) {
//get languages available
$languages = uls_get_available_languages();
//add slash to languages to remove it in the URL
$aux = array();
foreach ($languages as $key => $item) {
$aux[$key] = "/{$item}";
}
//remove languages in the URL
$redirect_to = str_replace($aux, '', $redirect_to);
}
return $redirect_to;
}
<?php
global $wp_query;
$shortcode_class = isset($shortcode_class) ? $shortcode_class : 'tab_background_color_picker';
$options = get_option('uls_settings');
// get information from DB
$new_img_file = isset($options['uls_available_language_new_flags']) ? $options['uls_available_language_new_flags'] : '';
$languages = uls_get_available_languages();
$postId = null;
if (!is_home() && !is_archive() && !is_search() && !is_404()) {
$postId = $wp_query->post->ID;
}
?>
<div id="<?php
echo $shortcode_class;
?>
">
<?php
foreach ($languages as $key => $value) {
?>
<?php
$content_style = '';
$tagHtml = ' <img src="' . plugins_url('css/blank.gif', __FILE__) . '" style="margin-right:5px;" class="flag_32x32 flag-' . Codes::languageCode2CountryCode($value) . '" alt="' . $value . '" title="' . $key . '" /> ';
$grayClass = '';
if (!is_null($postId)) {
$hasTranslation = uls_get_post_translation_id($postId, $value) !== false;
$grayClass = $hasTranslation ? '' : 'uls-grayscale';
}
// if the user load a specific img for a language load it and add its configuration
if (isset($new_img_file[$key]) && !empty($new_img_file[$key])) {
// get width and height from image loaded
function uls_register_sidebar_laguages()
{
global $wp_registered_sidebars;
$languages = uls_get_available_languages();
// get the all languages available in the wp
$options = get_option('uls_settings');
// delete language that is actually in the side, from available languages
$lang_code = uls_get_site_language();
foreach ($languages as $lang_name) {
if (($lang_name = array_search($lang_code, $languages)) !== false) {
unset($languages[$lang_name]);
}
}
// create the N_sidebar X available_languages, but fir ask if the enable checkbox is true
if (!isset($options['enable_translation_sidebars_language_switch']) || $options['enable_translation_sidebars_language_switch']) {
if (function_exists('register_sidebar')) {
$temporal_sidebars = $wp_registered_sidebars;
foreach ($temporal_sidebars as $sidebar => $items) {
foreach ($languages as $lang_name => $lang_code) {
register_sidebar(array('name' => $items['name'] . ' / ' . $lang_name, 'id' => strtolower("uls_" . $items['id'] . '_' . $lang_code), 'description' => __($items['description'] . ' / ' . $lang_name, 'user-language-switch'), 'before_widget' => $items['before_widget'], 'after_widget' => $items['after_widget'], 'before_title' => $items['before_title'], 'after_title' => $items['after_title']));
}
}
}
}
}
/**
* This function creates a form to update language selection of an user to display in the front end side. If user isn't logged in or can't change the language, then it returns null.
*
* @param $default_language string language code used as default value of the input selector. If it is null, then the language saved by the user is selected.
* @param $label string label to use for the language field.
* @param $submit_label string label to use in the button to submit the form.
* @param $usccess_message string Message to display if language is saved successfully.
* @param $error_message string Message to display if language isn't saved.
*
* @return mixed HTML code of the form as a string. If user isn't logged in or user can't choose a language(settings of the plugin) then null is returned.
*/
function uls_create_user_language_switch_form($default_language = null, $label = null, $submit_label = null, $success_message = null, $error_message = null)
{
//check if user is logged in
if (!is_user_logged_in()) {
return null;
}
//check if the user can change the language
$options = get_option('uls_settings');
$type = 'frontend';
if (!$options["user_{$type}_configuration"]) {
return null;
}
//get default values
$label = empty($label) ? __('Language', 'user-language-switch') : $label;
$submit_label = empty($submit_label) ? __('Save', 'user-language-switch') : $submit_label;
$success_message = empty($success_message) ? __('Language saved', 'user-language-switch') : $success_message;
$error_message = empty($error_message) ? __('Error saving language', 'user-language-switch') : $error_message;
//get user's language
$language = get_user_meta(get_current_user_id(), "uls_{$type}_language", true);
//set the default language if the user doesn't have a preference
if (empty($language)) {
$language = $options["default_{$type}_language"];
}
//available languages
$available_languages = uls_get_available_languages();
ob_start();
//include some JS libraries
wp_enqueue_script('jquery-form');
?>
<div class="uls-user-language-form-div">
<form id="uls_user_language_form" action="<?php
echo admin_url('admin-ajax.php');
?>
" method="POST">
<input type="hidden" name="action" value="uls_user_language_switch" />
<?php
if (function_exists("wp_nonce_field")) {
?>
<?php
wp_nonce_field('uls_user_language_switch', 'uls_wpnonce');
?>
<?php
}
?>
<label for="uls_language"><?php
echo $label;
?>
</label>
<select id="uls_language" name="<?php
echo $options['frontend_language_field_name'];
?>
">
<?php
foreach ($available_languages as $langName => $langCode) {
?>
<?php
if ($langCode == $language) {
?>
<option value="<?php
echo $langCode;
?>
" selected="selected"><?php
echo $langName;
?>
</option>
<?php
} else {
?>
<option value="<?php
echo $langCode;
?>
"><?php
echo $langName;
?>
</option>
<?php
}
?>
<?php
}
?>
</select>
<div class="uls_submit_div">
<input type="submit" class="btn" value="<?php
echo $submit_label;
?>
" />
</div>
</form>
<div id="uls_user_language_message" class="uls_user_language_message"></div>
<script>
jQuery(document).ready(function(){
jQuery("form#uls_user_language_form").ajaxForm({
beforeSubmit: function(arr, $form, options) {
jQuery("div#uls_user_language_message").html("");
},
success: function (responseText, statusText, xhr, $form){
var $response = jQuery.parseJSON(responseText);
if($response.success)
jQuery("div#uls_user_language_message").html("<p class='success'><?php
echo $success_message;
?>
</p>");
else
jQuery("div#uls_user_language_message").html("<p class='error'><?php
echo $error_message;
?>
</p>");
},
error: function(){
jQuery("div#uls_user_language_message").html("<p class='error'><?php
echo $error_message;
?>
</p>");
}
});
});
</script>
</div>
<?php
$res = ob_get_contents();
ob_end_clean();
return $res;
}
function head_reference_translation()
{
//get the id of the current page
$url = isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on" ? "https://" : "http://";
$url .= $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"];
$post_id = url_to_postid($url);
// get all available languages
$languages = uls_get_available_languages();
$curren_code = uls_get_user_language();
// get current language
// delete the current language site
$code_value = array_search($curren_code, $languages);
unset($languages[$code_value]);
// build the url to be tranlation
$url = '';
// get url from where it's using
if (is_home()) {
$url = get_home_url();
} else {
if (is_archive() || is_search() || is_author() || is_category() || is_tag() || is_date()) {
$url = uls_get_browser_url();
}
}
// get browser url
// if exits the url so, translate this
if (!empty($url)) {
// use all available languages and get the url translation
foreach ($languages as $language => $code) {
$translation_url = uls_get_url_translated($url, $code);
echo '<link rel="alternate" hreflang="' . substr($code, 0, 2) . '" href="' . $translation_url . '" />';
}
}
// build url to the home
if (!empty($post_id) && empty($url)) {
// change the filter
global $uls_permalink_convertion;
$uls_permalink_convertion = false;
// use all available languages and get the url translation
foreach ($languages as $language => $code) {
// get the post_id translation if the current page has translation
$translation_id = uls_get_post_translation_id($post_id, $code);
if (!empty($translation_id)) {
$translation_url = uls_get_url_translated(get_permalink($translation_id), $code);
echo '<link rel="alternate" hreflang="' . substr($code, 0, 2) . '" href="' . $translation_url . '" />';
}
}
// leave the global car like it was before
$uls_permalink_convertion = true;
}
}
/**
* Save language associations
*/
function uls_save_association($post_id)
{
//verify post is a revision
$parent_id = wp_is_post_revision($post_id);
if ($parent_id === false) {
$parent_id = $post_id;
}
$languages = uls_get_available_languages();
$selected_language = isset($_POST['uls_language']) ? $_POST['uls_language'] : null;
if (!empty($selected_language)) {
foreach ($languages as $lang) {
$related_post = isset($_POST['uls_translation_' . strtolower($lang)]) ? $_POST['uls_translation_' . strtolower($lang)] : null;
if (!empty($related_post)) {
update_post_meta($related_post, 'uls_translation_' . strtolower($selected_language), $parent_id);
}
}
}
}
