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nkint/gist:a32d07e9845b961ad226

Created February 27, 2015 10:00
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qTranslate META
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gistfile1.txt
<?php
/*
Plugin Name: qTranslate META
Plugin URI: http://johnjcamilleri.com/2010/01/qtranslate-and-multilingual-meta-tags/
Description: Multilingual support for META tags. Requires qTranslate.
Version: 1.0.2
Author: John J. Camilleri
Author URI: http://johnjcamilleri.com
*/
//===============================================
// Class definition
class qTranslateMETAPlugin {
/* Some declarations */
var $field_names; //Set hook_init in below
/* Constructor */
function __construct() {
//Register hooks
register_activation_hook(__FILE__, array(&$this, 'hook_activation'));
add_action('init', array(&$this, 'hook_init'));
add_action('admin_menu', array(&$this, 'hook_admin_menu'));
add_action('save_post', array(&$this, 'hook_save_post'));
//Hooks defined in config
add_action('wp_head', array(&$this, 'hook_head'));
// Get title hook from options, or default to wp_title
$title_hook = get_option('qtrans_meta_title_hook');
if (!$title_hook) $title_hook = "single_post_title"; // wp_title
add_filter($title_hook, array(&$this, 'hook_title'));
}
/* Activate function */
function hook_activation() {
//Check for qtranslate
if (!function_exists('qtrans_getSortedLanguages')) {
throw new Exception(__('This plugin requires qTranslate to be installed and activated.', 'qtranslate-meta'));
}
}
//===============================================
/* Init Hook */
function hook_init() {
//Add styles
if (is_admin()) wp_enqueue_style('qtrans-meta-plugin', WP_PLUGIN_URL . '/qtranslate-meta/styles.css');
//Add translation
load_plugin_textdomain('qtranslate-meta', false, 'qtranslate-meta/lang');
//Fields initialization
$this->field_names = array(
'title' => __('Browser Title', 'qtranslate-meta'),
'keywords' => __('Keywords', 'qtranslate-meta'),
'description' => __('Description', 'qtranslate-meta'),
);
}
/* Add menu page */
function hook_admin_menu() {
//Add menu page for SEO summary
$page = add_submenu_page(
'edit-pages.php', //parent
'META Summary', //page title
'META Summary', //menu title,
'edit_post', //access_level/capability (tried setting as 'edit_post', would mess up edit page)
dirname(__FILE__) . '/summary-page.php' //menu_slug
);
//Add settings page
$page = add_submenu_page(
'options-general.php', //parent
'qTranslate META', //page title
'qTranslate META', //menu title,
'edit_plugins', //access_level/capability
dirname(__FILE__) . '/settings-page.php' //menu_slug
);
//Add META box (for both pages and posts)
add_meta_box(
'qtrans_meta_meta_box', //HTML id
__('Multilingual META', 'qtranslate-meta'), //title
array(&$this, 'meta_box_generate'), //callback
'page', //type
'normal', //context - normal, advanced, side
'high' //priority - high, low
);
add_meta_box(
'qtrans_meta_meta_box', //HTML id
__('Multilingual META', 'qtranslate-meta'), //title
array(&$this, 'meta_box_generate'), //callback
'post', //type
'normal', //context - normal, advanced, side
'high' //priority - high, low
);
}
/* Load & split META tags */
function load_meta($post_id) {
$meta = array();
foreach($this->field_names as $field => $field_label) {
$field_id = "qtrans_meta:{$field}";
$field_data = get_post_meta( $post_id, $field_id, true );
$meta[$field] = qtranxf_split( $field_data );
}
return $meta;
}
/* Filter which runs to save META details as post meta fields on page save */
function hook_save_post($post_id) {
// Fix bug when auto-saving revisions
// Since 0.8, thanks to Benoit Gauthier
$revision_id = wp_is_post_revision($post_id);
if ($revision_id !== false && $revision_id !== $post_id )
return;
//Iterate over field names and languages and copile into array
$languages = qtrans_getSortedLanguages();
$meta = array();
foreach($languages as $lang) {
foreach($this->field_names as $field => $field_label) {
//Get field data
$field_id = "qtrans_meta_{$field}_{$lang}";
$field_data = trim(str_replace('"', '', $_POST[$field_id]));
$meta[$field][$lang] = $field_data;
} //end of iterating over field names
} //end of iterating over langauges
// Join and save
foreach($meta as $field=>$data) {
$field_id = "qtrans_meta:{$field}";
$field_data = qtrans_join( $data );
update_post_meta( $post_id, $field_id, $field_data );
}
}
/* Filter which runs to update any over-ridden titles */
function hook_title($title) {
global $post;
//See if post has an alternate title in current language
$lang = qtrans_getLanguage();
$meta = $this->load_meta($post->ID);
//Override title?
$new_title = ($meta['title'][$lang]) ? $meta['title'][$lang] : $title;
//Add suffix?
if ($title_suffix = get_option('qtrans_meta_title_suffix'))
$new_title .= ' '.$title_suffix;
//Return it
return $new_title;
}
/* Action which runs dump the localised META tags */
function hook_head() {
if (!(is_single() || is_page())) return;
global $post;
$lang = qtrans_getLanguage();
$meta = $this->load_meta($post->ID);
foreach($meta as $field=>$all_data) {
if ($field == 'title') {
continue;
}
elseif ($data = $all_data[$lang]) {
echo "<meta name=\"{$field}\" content=\"{$data}\" />\n";
}
}
}
/* Callback function for creating meta box */
function meta_box_generate() {
global $q_config, $post;
$languages = qtrans_getSortedLanguages();
$meta = $this->load_meta($post->ID);
?>
<script type="text/javascript">
//<![CDATA[
function qtrans_meta_switch_lang(lang) {
//Hide all
<?php foreach($languages as $lang): echo "jQuery('#qtrans_meta_language_{$lang}').hide();"; endforeach; ?>
//Show selected, recount chars
jQuery('#qtrans_meta_language_'+lang).show();
qtrans_meta_count_chars(lang);
}
//Count chars & paste into respective box
function qtrans_meta_count_chars(lang) {
var chars = jQuery('#qtrans_meta_description_'+lang).val().length;
jQuery('#qtrans_meta_description-length_'+lang).val(chars);
}
//]]>
</script>
<div class="qtrans_meta_language-switcher">
<?php
echo "&nbsp;|&nbsp;";
foreach($languages as $lang) {
echo "<a href=\"javascript:qtrans_meta_switch_lang('$lang')\" title=\"".qtranxf_getLanguageName($lang)."\">".qtranxf_getLanguageName($lang)."</a>&nbsp|&nbsp;";
}
?>
</div>
<?php foreach($languages as $lang): ?>
<table id="qtrans_meta_language_<?php echo $lang ?>" class="qtrans_meta_table" style="display:none;">
<tr><td colspan="2" class="heading">
<img src="<?php echo WP_PLUGIN_URL ?>/qtranslate/flags/<?php echo $q_config['flag'][$lang] ?>" alt=""/>
<strong><?php echo qtranxf_getLanguageName($lang) ?></strong>
</td></tr>
<tr>
<th><label for="qtrans_meta_title_<?php echo $lang ?>"><?php _e('Browser Title', 'qtranslate-meta'); ?>:</label> </th>
<td><input type="text" name="qtrans_meta_title_<?php echo $lang ?>" id="qtrans_meta_title_<?php echo $lang ?>" value="<?php echo $meta['title'][$lang] ?>" style="width:50%;" /></td>
</tr>
<tr>
<th><label for="qtrans_meta_keywords_<?php echo $lang ?>"><?php _e('Keywords', 'qtranslate-meta'); ?>:</label> </th>
<td><input type="text" name="qtrans_meta_keywords_<?php echo $lang ?>" id="qtrans_meta_keywords_<?php echo $lang ?>" value="<?php echo $meta['keywords'][$lang] ?>" style="width:100%;" /></td>
</tr>
<tr>
<th><label for="qtrans_meta_description_<?php echo $lang ?>"><?php _e('Description', 'qtranslate-meta'); ?>:</label> </th>
<td>
<textarea name="qtrans_meta_description_<?php echo $lang ?>" id="qtrans_meta_description_<?php echo $lang ?>" style="width:100%;" rows="3" onkeyup="qtrans_meta_count_chars('<?php echo $lang ?>')" onkeydown="qtrans_meta_count_chars('<?php echo $lang ?>')"><?php echo $meta['description'][$lang] ?></textarea>
<br/>
<input type="text" maxlength="3" size="3" id="qtrans_meta_description-length_<?php echo $lang ?>" readonly="readonly"/>
<?php _e('characters. Most search engines use a maximum of 160 chars for the description.', 'qtranslate-meta'); ?>
</td>
</tr>
</table>
<?php endforeach; ?>
<script type="text/javascript">
//<![CDATA[
qtrans_meta_switch_lang('<?php echo $q_config['default_language'] ?>');
//]]>
</script>
<?php
}
/* Get all post/page meta */
function get_post_meta($post_type) {
//Sort out the args
$post_type = ($post_type == 'page') ? 'page' : 'post';
//Function to get POSTS
function qtm_get_posts(&$post_array) {
//Get posts
$post_array = get_posts(array(
'post_parent' => $parent_id,
'post_type' => 'post',
'numberposts' => -1,
'post_status' => '', //all statuses
'orderby' => 'parent menu_order',
'order' => 'ASC',
));
}
//Recursive function to get hierarchical PAGES
function qtm_get_pages_hierarchical(&$page_array, $parent_id, $depth=0) {
//Get pages at this level
$posts = get_posts(array(
'post_parent' => $parent_id,
'post_type' => 'page',
'numberposts' => -1,
'post_status' => '', //all statuses
'orderby' => 'parent menu_order',
'order' => 'ASC',
));
//For each page, add to page array and recurse into children
foreach ($posts as $post) {
$post->qtm_depth = $depth;
$page_array[] = $post;
qtm_get_pages_hierarchical($page_array, $post->ID, $depth+1);
}
}
$posts = array();
switch ($post_type) {
case 'page':
//Start the recursion
qtm_get_pages_hierarchical($posts, 0);
break;
case 'post':
//Get all posts
qtm_get_posts($posts);
break;
}
return $posts;
}
} //end of class
//===============================================
$qtransMETA = null;
add_action('plugins_loaded', create_function('', '
if (function_exists("qtrans_getSortedLanguages")):
global $qtransMETA;
$qtransMETA = new qTranslateMETAPlugin();
endif;
'));
//===============================================
?>
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