qtranslate with the new Visual editor in Wordpress 3.9

qtranslate_hooks.php

<?php // encoding: utf-8

/*Copyright 2008Qian Qin(email : mail@qianqin.de)

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA02110-1301USA
*/

/* qTranslate Hooks */

function qtrans_header(){
	global $q_config;
	echo "\n<meta http-equiv=\"Content-Language\" content=\"".str_replace('_','-',$q_config['locale'][$q_config['language']])."\" />\n";
	$css = "<style type=\"text/css\" media=\"screen\">\n";
	$css .=".qtrans_flag span { display:none }\n";
	$css .=".qtrans_flag { height:12px; width:18px; display:block }\n";
	$css .=".qtrans_flag_and_text { padding-left:20px }\n";
	$baseurl = WP_CONTENT_URL;
	if(isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == '1' || $_SERVER['HTTPS'] == 'on')) {
		$baseurl = preg_replace('#^http://#','https://', $baseurl);
	}
	foreach($q_config['enabled_languages'] as $language) {
		$css .=".qtrans_flag_".$language." { background:url(".$baseurl.'/'.$q_config['flag_location'].$q_config['flag'][$language].") no-repeat }\n";
	}
	$css .="</style>\n";
	echo apply_filters('qtranslate_header_css',$css);
	// skip the rest if 404
	if(is_404()) return;
	// set links to translations of current page
	foreach($q_config['enabled_languages'] as $language) {
		if($language != qtrans_getLanguage())
			echo '<link hreflang="'.$language.'" href="'.qtrans_convertURL('',$language).'" rel="alternate" />'."\n";
	}	
}

function qtrans_localeForCurrentLanguage($locale){
	global $q_config;
	// try to figure out the correct locale
	$locale = array();
	$locale[] = $q_config['locale'][$q_config['language']].".utf8";
	$locale[] = $q_config['locale'][$q_config['language']]."@euro";
	$locale[] = $q_config['locale'][$q_config['language']];
	$locale[] = $q_config['windows_locale'][$q_config['language']];
	$locale[] = $q_config['language'];
	
	// return the correct locale and most importantly set it (wordpress doesn't, which is bad)
	// only set LC_TIME as everyhing else doesn't seem to work with windows
	setlocale(LC_TIME, $locale);
	
	return $q_config['locale'][$q_config['language']];
}

function qtrans_optionFilter($do='enable') {
	$options = array(	'option_widget_pages',
						'option_widget_archives',
						'option_widget_meta',
						'option_widget_calendar',
						'option_widget_text',
						'option_widget_categories',
						'option_widget_recent_entries',
						'option_widget_recent_comments',
						'option_widget_rss',
						'option_widget_tag_cloud'
					);
	foreach($options as $option) {
		if($do!='disable') {
			add_filter($option, 'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
		} else {
			remove_filter($option, 'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage');
		}
	}
}

function qtrans_adminHeader() {
	echo "<style type=\"text/css\" media=\"screen\">\n";
	echo ".qtrans_title_input { border:0pt none; font-size:1.7em; outline-color:invert; outline-style:none; outline-width:medium; padding:0pt; width:100%; }\n";
	echo ".qtrans_title_wrap { border-color:#CCCCCC; border-style:solid; border-width:1px; padding:2px 3px; }\n";
	echo "#qtrans_textarea_content { padding:6px; border:0 none; line-height:150%; outline: none; margin:0pt; width:100%; -moz-box-sizing: border-box;";
	echo	"-webkit-box-sizing: border-box; -khtml-box-sizing: border-box; box-sizing: border-box; }\n";
	echo ".qtrans_title { -moz-border-radius: 6px 6px 0 0;";
	echo	"-webkit-border-top-right-radius: 6px; -webkit-border-top-left-radius: 6px; -khtml-border-top-right-radius: 6px; -khtml-border-top-left-radius: 6px;";
	echo	"border-top-right-radius: 6px; border-top-left-radius: 6px; }\n";
	echo ".hide-if-no-js.wp-switch-editor.switch-tmce { margin-left:6px !important;}";
	echo "#qtranslate_debug { width:100%; height:200px }";
	echo "#postexcerpt textarea { height:4em; margin:0; width:98% }";
	echo ".qtranslate_lang_div { float:right; height:12px; width:18px; padding:6px 5px 8px 5px; cursor:pointer }";
	echo ".qtranslate_lang_div.active { background: #DFDFDF; border-left:1px solid #D0D0D0; border-right: 1px solid #F7F7F7; padding:6px 4px 8px 4px }";
	do_action('qtranslate_css');
	echo "</style>\n";
	return qtrans_optionFilter('disable');
}

function qtrans_useCurrentLanguageIfNotFoundShowAvailable($content) {
	global $q_config;
	return qtrans_use($q_config['language'], $content, true);
}

function qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage($content) {
	global $q_config;
	return qtrans_use($q_config['language'], $content, false);
}

function qtrans_useDefaultLanguage($content) {
	global $q_config;
	return qtrans_use($q_config['default_language'], $content, false);
}

function qtrans_excludeUntranslatedPosts($where) {
	global $q_config, $wpdb;
	if($q_config['hide_untranslated'] && !is_singular()) {
		$where .= " AND $wpdb->posts.post_content LIKE '%<!--:".qtrans_getLanguage()."-->%'";
	}
	return $where;
}

function qtrans_excludePages($pages) {
	global $wpdb, $q_config;
	static $exclude = 0;
	if(!$q_config['hide_untranslated']) return $pages;
	if(is_array($exclude)) return array_merge($exclude, $pages);
	$query = "SELECT id FROM $wpdb->posts WHERE post_type = 'page' AND post_status = 'publish' AND NOT ($wpdb->posts.post_content LIKE '%<!--:".qtrans_getLanguage()."-->%')" ;
	$hide_pages = $wpdb->get_results($query);
	$exclude = array();
	foreach($hide_pages as $page) {
		$exclude[] = $page->id;
	}
	return array_merge($exclude, $pages);
}

function qtrans_postsFilter($posts) {
	if(is_array($posts)) {
		foreach($posts as $post) {
			$post->post_content = qtrans_useCurrentLanguageIfNotFoundShowAvailable($post->post_content);
			$post = qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage($post);
		}
	}
	return $posts;
}

function qtrans_links($links, $file){ // copied from Sociable Plugin
	//Static so we don't call plugin_basename on every plugin row.
	static $this_plugin;
	if (!$this_plugin) $this_plugin = plugin_basename(dirname(__FILE__).'/qtranslate.php');
	
	if ($file == $this_plugin){
		$settings_link = '<a href="options-general.php?page=qtranslate">' . __('Settings', 'qtranslate') . '</a>';
		array_unshift( $links, $settings_link ); // before other links
	}
	return $links;
}

function qtrans_languageColumnHeader($columns){
	$new_columns = array();
	if(isset($columns['cb']))			$new_columns['cb'] = '';
	if(isset($columns['title']))		$new_columns['title'] = '';
	if(isset($columns['author']))		$new_columns['author'] = '';
	if(isset($columns['categories']))	$new_columns['categories'] = '';
	if(isset($columns['tags']))			$new_columns['tags'] = '';
	$new_columns['language'] = __('Languages', 'qtranslate');
	return array_merge($new_columns, $columns);;
}

function qtrans_languageColumn($column) {
	global $q_config, $post;
	if ($column == 'language') {
		$available_languages = qtrans_getAvailableLanguages($post->post_content);
		$missing_languages = array_diff($q_config['enabled_languages'], $available_languages);
		$available_languages_name = array();
		$missing_languages_name = array();
		foreach($available_languages as $language) {
			$available_languages_name[] = $q_config['language_name'][$language];
		}
		$available_languages_names = join(", ", $available_languages_name);
		
		echo apply_filters('qtranslate_available_languages_names',$available_languages_names);
		do_action('qtranslate_languageColumn', $available_languages, $missing_languages);
	}
	return $column;
}

function qtrans_versionLocale() {
	return 'en_US';
}

function qtrans_esc_html($text) {
	return qtrans_useDefaultLanguage($text);
}

function qtrans_useRawTitle($title, $raw_title = '', $context = 'save') {
	if($raw_title=='') $raw_title = $title;
	if('save'==$context) {
		$raw_title = qtrans_useDefaultLanguage($raw_title);
		$title = remove_accents($raw_title);
	}
	return $title;
}

function qtrans_checkCanonical($redirect_url, $requested_url) {
	// fix canonical conflicts with language urls
	if(qtrans_convertURL($redirect_url)==qtrans_convertURL($requested_url)) 
		return false;
	return $redirect_url;
}

function qtrans_fixSearchForm($form) {
	$form = preg_replace('#action="[^"]*"#','action="'.trailingslashit(qtrans_convertURL(get_home_url())).'"',$form);
	return $form;
}

function qtrans_fixAdminBar($wp_admin_bar) {
	global $wp_admin_bar;
	foreach($wp_admin_bar->get_nodes() as $node) {
		$wp_admin_bar->add_node(qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage($node));
	}
}

// Hooks for Plugin compatibility

function wpsupercache_supercache_dir($uri) {
	global $q_config;
	if(isset($q_config['url_info']['original_url'])) {
		$uri = $q_config['url_info']['original_url'];
	} else {
		$uri = $_SERVER['REQUEST_URI'];
	}
	$uri = preg_replace('/[ <>\'\"\r\n\t\(\)]/', '', str_replace( '/index.php', '/', str_replace( '..', '', preg_replace("/(\?.*)?$/", '', $uri ) ) ) );
	$uri = str_replace( '\\', '', $uri );
	$uri = strtolower(preg_replace('/:.*$/', '',  $_SERVER["HTTP_HOST"])) . $uri; // To avoid XSS attacs
	return $uri;
}
add_filter('supercache_dir',					'wpsupercache_supercache_dir',0);

// Hooks (Actions)
add_action('wp_head',						'qtrans_header');
add_action('category_edit_form',			'qtrans_modifyTermFormFor');
add_action('post_tag_edit_form',			'qtrans_modifyTermFormFor');
add_action('link_category_edit_form',		'qtrans_modifyTermFormFor');
add_action('category_add_form',				'qtrans_modifyTermFormFor');
add_action('post_tag_add_form',				'qtrans_modifyTermFormFor');
add_action('link_category_add_form',		'qtrans_modifyTermFormFor');
add_action('widgets_init',					'qtrans_widget_init'); 
add_action('plugins_loaded',				'qtrans_init', 2); 
add_action('admin_head',					'qtrans_adminHeader');
add_action('admin_menu',					'qtrans_adminMenu');
add_action('wp_before_admin_bar_render',	'qtrans_fixAdminBar');
add_action('wp_tiny_mce_init', 				'qtrans_TinyMCE_init');

// Hooks (execution time critical filters) 
add_filter('the_content',					'qtrans_useCurrentLanguageIfNotFoundShowAvailable', 0);
add_filter('the_excerpt',					'qtrans_useCurrentLanguageIfNotFoundShowAvailable', 0);
add_filter('the_excerpt_rss',				'qtrans_useCurrentLanguageIfNotFoundShowAvailable', 0);
add_filter('sanitize_title',				'qtrans_useRawTitle',0, 3);
add_filter('comment_moderation_subject',	'qtrans_useDefaultLanguage',0);
add_filter('comment_moderation_text',		'qtrans_useDefaultLanguage',0);
add_filter('get_comment_date',				'qtrans_dateFromCommentForCurrentLanguage',0,2);
add_filter('get_comment_time',				'qtrans_timeFromCommentForCurrentLanguage',0,4);
add_filter('get_post_modified_time',		'qtrans_timeModifiedFromPostForCurrentLanguage',0,3);
add_filter('get_the_time',					'qtrans_timeFromPostForCurrentLanguage',0,3);
add_filter('get_the_date',					'qtrans_dateFromPostForCurrentLanguage',0,4);
add_filter('locale',						'qtrans_localeForCurrentLanguage',99);
add_filter('the_title',						'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage', 0);
add_filter('term_name',						'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('tag_rows',						'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('list_cats',						'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('wp_list_categories',			'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('wp_dropdown_cats',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('wp_title',						'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('single_post_title',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('bloginfo',						'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('get_others_drafts',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('get_bloginfo_rss',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('get_wp_title_rss',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('wp_title_rss',					'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('the_title_rss',					'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('the_content_rss',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('gettext',						'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('get_pages',						'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('category_description',			'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('bloginfo_rss',					'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('the_category_rss',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('wp_generate_tag_cloud',			'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('term_links-post_tag',			'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('link_name',						'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('link_description',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter('pre_option_rss_language',		'qtrans_getLanguage',0);
add_filter('the_author',					'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
add_filter( "_wp_post_revision_field_post_title", 'qtrans_showAllSeperated', 0);
add_filter( "_wp_post_revision_field_post_content", 'qtrans_showAllSeperated', 0);
add_filter( "_wp_post_revision_field_post_excerpt", 'qtrans_showAllSeperated', 0);

// Hooks (execution time non-critical filters) 
add_filter('author_feed_link',				'qtrans_convertURL');
add_filter('author_link',					'qtrans_convertURL');
add_filter('author_feed_link',				'qtrans_convertURL');
add_filter('day_link',						'qtrans_convertURL');
add_filter('get_comment_author_url_link',	'qtrans_convertURL');
add_filter('month_link',					'qtrans_convertURL');
add_filter('page_link',						'qtrans_convertURL');
add_filter('post_link',						'qtrans_convertURL');
add_filter('year_link',						'qtrans_convertURL');
add_filter('category_feed_link',			'qtrans_convertURL');
add_filter('category_link',					'qtrans_convertURL');
add_filter('tag_link',						'qtrans_convertURL');
add_filter('term_link',						'qtrans_convertURL');
add_filter('the_permalink',					'qtrans_convertURL');
add_filter('feed_link',						'qtrans_convertURL');
add_filter('post_comments_feed_link',		'qtrans_convertURL');
add_filter('tag_feed_link',					'qtrans_convertURL');
add_filter('get_pagenum_link',				'qtrans_convertURL');
add_filter('get_search_form',				'qtrans_fixSearchForm', 10, 1);
add_filter('manage_posts_columns',			'qtrans_languageColumnHeader');
add_filter('manage_posts_custom_column',	'qtrans_languageColumn');
add_filter('manage_pages_columns',			'qtrans_languageColumnHeader');
add_filter('manage_pages_custom_column',	'qtrans_languageColumn');
add_filter('wp_list_pages_excludes',	    'qtrans_excludePages');
add_filter('comment_notification_text', 	'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage');
add_filter('comment_notification_headers',	'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage');
add_filter('comment_notification_subject',	'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage');

add_filter('the_editor',					'qtrans_modifyRichEditor');
add_filter('admin_footer',					'qtrans_modifyExcerpt');
add_filter('bloginfo_url',					'qtrans_convertBlogInfoURL',10,2);
add_filter('plugin_action_links', 			'qtrans_links', 10, 2);
add_filter('manage_language_columns',		'qtrans_language_columns');
add_filter('core_version_check_locale',		'qtrans_versionLocale');
add_filter('redirect_canonical',			'qtrans_checkCanonical', 10, 2);
// skip this filters if on backend
if(!defined('WP_ADMIN')) {
	add_filter('the_posts',					'qtrans_postsFilter');
	add_filter('wp_setup_nav_menu_item',		'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage');
	
	// Compability with Default Widgets
	qtrans_optionFilter();
	add_filter('widget_title',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
	add_filter('widget_text',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
	
	// filter options
	add_filter('esc_html',					'qtrans_esc_html', 0);
	// don't filter untranslated posts in admin
	add_filter('posts_where_request',		'qtrans_excludeUntranslatedPosts');
	
	// leave terms in default language
	add_filter('cat_row',					'qtrans_useTermLib',0);
	add_filter('cat_rows',					'qtrans_useTermLib',0);
	add_filter('wp_get_object_terms',		'qtrans_useTermLib',0);
	add_filter('single_tag_title',			'qtrans_useTermLib',0);
	add_filter('single_cat_title',			'qtrans_useTermLib',0);
	add_filter('the_category',				'qtrans_useTermLib',0);
	add_filter('get_term',					'qtrans_useTermLib',0);
	add_filter('get_terms',					'qtrans_useTermLib',0);
	add_filter('get_category',				'qtrans_useTermLib',0);
	add_filter('get_comment_author',		'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
	add_filter('the_author',				'qtrans_useCurrentLanguageIfNotFoundUseDefaultLanguage',0);
}

?>

qtranslate_javascript.php

<?php // encoding: utf-8

/*  Copyright 2008  Qian Qin  (email : mail@qianqin.de)

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

// qTranslate Javascript functions
function qtrans_initJS() {
	global $q_config;
	$q_config['js']['qtrans_xsplit'] = "
		String.prototype.xsplit = function(_regEx){
			// Most browsers can do this properly, so let them — they'll do it faster
			if ('a~b'.split(/(~)/).length === 3) { return this.split(_regEx); }

			if (!_regEx.global)
			{ _regEx = new RegExp(_regEx.source, 'g' + (_regEx.ignoreCase ? 'i' : '')); }

			// IE (and any other browser that can't capture the delimiter)
			// will, unfortunately, have to be slowed down
			var start = 0, arr=[];
			var result;
			while((result = _regEx.exec(this)) != null){
				arr.push(this.slice(start, result.index));
				if(result.length > 1) arr.push(result[1]);
				start = _regEx.lastIndex;
			}
			if(start < this.length) arr.push(this.slice(start));
			if(start == this.length) arr.push(''); //delim at the end
			return arr;
		};
		";

	$q_config['js']['qtrans_is_array'] = "
		qtrans_isArray = function(obj) {
		   if (obj.constructor.toString().indexOf('Array') == -1)
			  return false;
		   else
			  return true;
		}
		";

	$q_config['js']['qtrans_split'] = "
		qtrans_split = function(text) {
			var split_regex = /(<!--.*?-->)/gi;
			var lang_begin_regex = /<!--:([a-z]{2})-->/gi;
			var lang_end_regex = /<!--:-->/gi;
			var morenextpage_regex = /(<!--more-->|<!--nextpage-->)+$/gi;
			var matches = null;
			var result = new Object;
			var matched = false;
		";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_split'].= "
			result['".$language."'] = '';
			";
	$q_config['js']['qtrans_split'].= "
			
			var blocks = text.xsplit(split_regex);
			if(qtrans_isArray(blocks)) {
				for (var i = 0;i<blocks.length;i++) {
					if((matches = lang_begin_regex.exec(blocks[i])) != null) {
						matched = matches[1];
					} else if(lang_end_regex.test(blocks[i])) {
						matched = false;
					} else {
						if(matched) {
							result[matched] += blocks[i];
						} else {
		";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_split'].= "
							result['".$language."'] += blocks[i];
			";
	$q_config['js']['qtrans_split'].= "
						}
					}
				}
			}
			for (var i = 0;i<result.length;i++) {
				result[i] = result[i].replace(morenextpage_regex,'');
			}
			return result;
		}
		";

	$q_config['js']['qtrans_use'] = "
		qtrans_use = function(lang, text) {
			var result = qtrans_split(text);
			return result[lang];
		}
		";
		
	$q_config['js']['qtrans_integrate'] = "
		qtrans_integrate = function(lang, lang_text, text) {
			var texts = qtrans_split(text);
			var moreregex = /<!--more-->/i;
			var text = '';
			var max = 0;
			var morenextpage_regex = /(<!--more-->|<!--nextpage-->)+$/gi;
			
			texts[lang] = lang_text;
		";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_integrate'].= "
			texts['".$language."'] = texts['".$language."'].split(moreregex);
			if(!qtrans_isArray(texts['".$language."'])) {
				texts['".$language."'] = [texts['".$language."']];
			}
			if(max < texts['".$language."'].length) max = texts['".$language."'].length;
			";
	$q_config['js']['qtrans_integrate'].= "
			for(var i=0; i<max; i++) {
				if(i >= 1) {
					text += '<!--more-->';
				}
		";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_integrate'].= "
				if(texts['".$language."'][i] && texts['".$language."'][i]!=''){
					text += '<!--:".$language."-->';
					text += texts['".$language."'][i];
					text += '<!--:-->';
				}
			";
	$q_config['js']['qtrans_integrate'].= "
			}
			text = text.replace(morenextpage_regex,'');
			return text;
		}
		";
		
	$q_config['js']['qtrans_save'] = "
		qtrans_save = function(text) {
			var ta = document.getElementById('content');
			ta.value = qtrans_integrate(qtrans_get_active_language(),text,ta.value);
			return ta.value;
		}
		";
		
	$q_config['js']['qtrans_integrate_category'] = "
		qtrans_integrate_category = function() {
			var t = document.getElementById('cat_name');
		";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_integrate_category'].= "
			if(document.getElementById('qtrans_category_".$language."').value!='')
				t.value = qtrans_integrate('".$language."',document.getElementById('qtrans_category_".$language."').value,t.value);
			";
	$q_config['js']['qtrans_integrate_category'].= "
		}
		";
		
	$q_config['js']['qtrans_integrate_tag'] = "
		qtrans_integrate_tag = function() {
			var t = document.getElementById('name');
		";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_integrate_tag'].= "
			if(document.getElementById('qtrans_tag_".$language."').value!='')
				t.value = qtrans_integrate('".$language."',document.getElementById('qtrans_tag_".$language."').value,t.value);
			";
	$q_config['js']['qtrans_integrate_tag'].= "
		}
		";
		
	$q_config['js']['qtrans_integrate_link_category'] = "
		qtrans_integrate_link_category = function() {
			var t = document.getElementById('name');
		";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_integrate_link_category'].= "
			if(document.getElementById('qtrans_link_category_".$language."').value!='')
				t.value = qtrans_integrate('".$language."',document.getElementById('qtrans_link_category_".$language."').value,t.value);
			";
	$q_config['js']['qtrans_integrate_link_category'].= "
		}
		";
		
	$q_config['js']['qtrans_integrate_title'] = "
		qtrans_integrate_title = function() {
			var t = document.getElementById('title');
		";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_integrate_title'].= "
			t.value = qtrans_integrate('".$language."',document.getElementById('qtrans_title_".$language."').value,t.value);
			";
	$q_config['js']['qtrans_integrate_title'].= "
		}
		";
		
	$q_config['js']['qtrans_assign'] = "
		qtrans_assign = function(id, text) {
			var inst = tinyMCE.get(id);
			var ta = document.getElementById(id);
			if(inst && ! inst.isHidden()) {
				text = switchEditors.wpautop(text);
				inst.execCommand('mceSetContent', null, text);
			} else {
				ta.value = text;
			}
		}
		";
		
	$q_config['js']['qtrans_tinyMCEOverload'] = "
		tinyMCE.get2 = tinyMCE.get;
		tinyMCE.get = function(id) {
			if(id=='content'&&this.get2('qtrans_textarea_'+id)!=undefined)
				return this.get2('qtrans_textarea_'+id);
			return this.get2(id);
		}
		
		";
		
	$q_config['js']['qtrans_wpActiveEditorOverload'] = "
		jQuery('.wp-editor-wrap').unbind('mousedown');
		jQuery('.wp-editor-wrap').mousedown(function(e){
			wpActiveEditor = 'qtrans_textarea_'+this.id.slice(3, -5);
		});
		";
	
	$q_config['js']['qtrans_updateTinyMCE'] = "
		(function() {
			for (var i in tinyMCEPreInit.qtInit) {
				var tmp = tinyMCEPreInit.qtInit[i];
				tmp.id = 'qtrans_textarea_'+tmp.id;

				tinyMCEPreInit.qtInit[tmp.id] = tmp;
				delete tinyMCEPreInit.qtInit[i];
				jQuery('#ed_toolbar').hide();
			}

			
			var hook = tinyMCEPreInit.mceInit['content'];
			hook.elements='hook-to-nothing';
			hook.selector = '#qtrans_textarea_content';
			delete tinyMCEPreInit.mceInit['content'];
			tinyMCEPreInit.mceInit['qtrans_textarea_content'] = hook;
			



			var wrap = jQuery('#wp-content-wrap');
			var html = '<div id=\"wp-qtrans_textarea_content-wrap\" class=\"' + wrap.prop('className') + '\"></div>';
			jQuery('body').append(html);
		}());
	";
	
	$q_config['js']['qtrans_wpOnload'] = "
		jQuery(document).ready(function() {
			qtrans_editorInit();
		});
		";
		
	$q_config['js']['qtrans_editorInit'] = "
		qtrans_editorInit = function() {
			qtrans_editorInit1();
			qtrans_editorInit2();
			jQuery('#qtrans_imsg').hide();
			qtrans_editorInit3();
			
			var h = getUserSetting( 'ed_size' );
			if(h<300) h = 300;
			
			jQuery('#content').hide();
			if ( getUserSetting( 'editor' ) == 'html' ) {
				if ( h )
					jQuery('#qtrans_textarea_content').css('height', h - 20 + 'px');
				jQuery('#qtrans_textarea_content').show();
			} else {
				// Activate TinyMCE if it's the user's default editor
				jQuery('#qtrans_textarea_content').show();
				// correct p for tinymce
				jQuery('#qtrans_textarea_content').val(switchEditors.wpautop(jQuery('#qtrans_textarea_content').val()))
				// let wp3.5 autohook take care of init
				qtrans_hook_on_tinyMCE('qtrans_textarea_content', false);
			}
		}
		";
	
	$q_config['js']['qtrans_hook_on_tinyMCE'] = "
		qtrans_hook_on_tinyMCE = function(id, initEditor) {
			tinyMCEPreInit.mceInit[id].setup = function(ed) {

				ed.on('SaveContent', function(e) {
					if (!ed.isHidden())
						qtrans_save(switchEditors.pre_wpautop(e.content));

				});
			};
			
			if (initEditor)
				tinymce.init(tinyMCEPreInit.mceInit[id]);
		}
		";
	
	$q_config['js']['qtrans_get_active_language'] = "
	
		qtrans_get_active_language = function() {
	";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_get_active_language'].= "
				if(document.getElementById('qtrans_select_".$language."').className=='wp-switch-editor switch-tmce switch-html')
					return '".$language."';
			";
	$q_config['js']['qtrans_get_active_language'].= "
		}
		";
		
	$q_config['js']['qtrans_switch_postbox'] = "
		function qtrans_switch_postbox(parent, target, lang, focus) { 
 	            if(typeof(focus)==='undefined') focus = true; 
	";
	foreach($q_config['enabled_languages'] as $language)
		$q_config['js']['qtrans_switch_postbox'].= "
				jQuery('#'+target).val(qtrans_integrate('".$language."', jQuery('#qtrans_textarea_'+target+'_'+'".$language."').val(), jQuery('#'+target).val()));
				jQuery('#'+parent+' .qtranslate_lang_div').removeClass('switch-html');
				jQuery('#'+parent+' .qtranslate_lang_div').removeClass('switch-tmce');
				if(lang!=false) jQuery('#qtrans_textarea_'+target+'_'+'".$language."').hide();
			";
	$q_config['js']['qtrans_switch_postbox'].= "
			if(lang!=false) {
				jQuery('#qtrans_switcher_'+parent+'_'+lang).addClass('switch-tmce');
				jQuery('#qtrans_switcher_'+parent+'_'+lang).addClass('switch-html');
				jQuery('#qtrans_textarea_'+target+'_'+lang).show(); 
 	            if(focus) 
 	                jQuery('#qtrans_textarea_'+target+'_'+lang).focus(); 
			}
		}
	";
		
	$q_config['js']['qtrans_switch'] = "
		switchEditors.go = function(id, lang) {
			id = id || 'qtrans_textarea_content';
			lang = lang || 'toggle';
			
			if ( 'toggle' == lang ) {
				if ( ed && !ed.isHidden() )
					lang = 'html';
				else
					lang = 'tmce';
			} else if( 'tinymce' == lang ) 
				lang = 'tmce';
		
			var inst = tinyMCE.get('qtrans_textarea_' + id);
			var vta = document.getElementById('qtrans_textarea_' + id);
			var ta = document.getElementById(id);
			var dom = tinymce.DOM;
			var wrap_id = 'wp-'+id+'-wrap';
			var wrap_id2 = 'wp-qtrans_textarea_content-wrap';
			
			// update merged content
			if(inst && ! inst.isHidden()) {
				tinyMCE.triggerSave();
			} else {
				qtrans_save(vta.value);
			}
			
			
			// check if language is already active
			if(lang!='tmce' && lang!='html' && document.getElementById('qtrans_select_'+lang).className=='wp-switch-editor switch-tmce switch-html') {
				return;
			}
			
			if(lang!='tmce' && lang!='html') {
				document.getElementById('qtrans_select_'+qtrans_get_active_language()).className='wp-switch-editor';
				document.getElementById('qtrans_select_'+lang).className='wp-switch-editor switch-tmce switch-html';
			}
			
			if(lang=='html') {
				if ( inst && inst.isHidden() )
					return false;
				if ( inst ) {
					vta.style.height = inst.getContentAreaContainer().offsetHeight + 20 + 'px';
					inst.hide();
				}
				
				dom.removeClass(wrap_id, 'tmce-active');
				dom.addClass(wrap_id, 'html-active');
				dom.removeClass(wrap_id2, 'tmce-active');
				dom.addClass(wrap_id2, 'html-active');				setUserSetting( 'editor', 'html' );
				setUserSetting( 'editor', 'html' );
			} else if(lang=='tmce') {
				if(inst && ! inst.isHidden())
					return false;
				if ( typeof(QTags) != 'undefined' )
					QTags.closeAllTags('qtrans_textarea_' + id);
				if ( tinyMCEPreInit.mceInit['qtrans_textarea_'+id] && tinyMCEPreInit.mceInit['qtrans_textarea_'+id].wpautop )
					vta.value = this.wpautop(qtrans_use(qtrans_get_active_language(),ta.value));
				if (inst) {
					inst.show();
				} else {
					qtrans_hook_on_tinyMCE('qtrans_textarea_'+id, true);
				}
				
				dom.removeClass(wrap_id, 'html-active');
				dom.addClass(wrap_id, 'tmce-active');
				dom.removeClass(wrap_id2, 'html-active');
				dom.addClass(wrap_id2, 'tmce-active');				setUserSetting('editor', 'tinymce');
				setUserSetting('editor', 'tinymce');
			} else {
				// switch content
				qtrans_assign('qtrans_textarea_'+id,qtrans_use(lang,ta.value));
			}
		}
		";
}

?>

qtranslate_wphacks.php

<?php // encoding: utf-8

/*  Copyright 2008  Qian Qin  (email : mail@qianqin.de)

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

/* Modifications Hacks to get Wordpress work the way it should */

// modifys term form to support multilingual content
function qtrans_modifyTermForm($id, $name, $term) {
	global $q_config;
	echo "<script type=\"text/javascript\">\n// <![CDATA[\r\n";
	// ' workaround
	if(is_object($term)&&isset($term->name)) {
		$termname = $term->name;
	} else {
		$termname = "";
	}
	// create input fields for each language
	foreach($q_config['enabled_languages'] as $language) {
		if(isset($_GET['action']) && $_GET['action']=='edit') {
			echo qtrans_insertTermInput2($id, $name, $termname, $language);
		} else {
			echo qtrans_insertTermInput($id, $name, $termname, $language);
		}
	}
	// hide real category text
	echo "ins.style.display='none';\n";
	echo "// ]]>\n</script>\n";
}

function qtrans_modifyTermFormFor($term) {
	qtrans_modifyTermForm('name', __('Name'), $term);
	qtrans_modifyTermForm('tag-name', __('Name'), $term);
}

function qtrans_TinyMCE_init() {
	global $q_config;
	echo "<script type=\"text/javascript\">\n// <![CDATA[\n";
	echo $q_config['js']['qtrans_updateTinyMCE'];
	echo "</script>\n";
}

// Modifys TinyMCE to edit multilingual content
function qtrans_modifyRichEditor($old_content) {
	global $q_config;
	$init_editor = true;
	if($GLOBALS['wp_version'] != QT_SUPPORTED_WP_VERSION) {
		if(!(isset($_REQUEST['qtranslateincompatiblemessage'])&&$_REQUEST['qtranslateincompatiblemessage']=="shown")) {
			echo '<div class="updated" id="qtrans_imsg">'.__('The qTranslate Editor has disabled itself because it hasn\'t been tested with your Wordpress version yet. This is done to prevent Wordpress from malfunctioning. You can reenable it by <a href="javascript:qtrans_editorInit();" title="Activate qTranslate" id="qtrans_imsg_link">clicking here</a> (may cause <b>data loss</b>! Use at own risk!). To remove this message permanently, please update qTranslate to the <a href="http://www.qianqin.de/qtranslate/download/">corresponding version</a>.', 'qtranslate').'</div>';
		}
		$init_editor = false;
	}
	// save callback hook
		
	preg_match("/<textarea[^>]*id=\"([^']+)\"/",$old_content,$matches);
	$id = $matches[1];
	preg_match("/cols=\"([^\"]+)\"/",$old_content,$matches);
	$cols = $matches[1];
	// don't do anything if not editing the content
	if($id!="content") return $old_content;
	
	// don't do anything to the editor if it's not rich
	if(!user_can_richedit()) {
		//echo '<p class="updated">'.__('The qTranslate Editor could not be loaded because WYSIWYG/TinyMCE is not activated in your profile.').'</p>';
		return $old_content;
	}
	
	// remove wpautop
	if('html' != wp_default_editor()) {
		remove_filter('the_editor_content', 'wp_richedit_pre');
	}
	
	$content = "";
	$content_append = "";
	
	// create editing field for selected languages
	$qt_textarea = '<textarea id="qtrans_textarea_'.$id.'" name="qtrans_textarea_'.$id.'" tabindex="2" cols="'.$cols.'" style="display:none" onblur="qtrans_save(this.value);"></textarea>';
	$old_content = preg_replace('#(<textarea[^>]*>.*</textarea>)#', '$1'.$qt_textarea, $old_content);

	// do some crazy js to alter the admin view
	$content .="<script type=\"text/javascript\">\n// <![CDATA[\n";
	
	// include needed js functions
	$content .= $q_config['js']['qtrans_is_array'];
	$content .= $q_config['js']['qtrans_xsplit'];
	$content .= $q_config['js']['qtrans_split'];
	$content .= $q_config['js']['qtrans_integrate'];
	$content .= $q_config['js']['qtrans_use'];
	$content .= $q_config['js']['qtrans_assign'];
	$content .= $q_config['js']['qtrans_save'];
	$content .= $q_config['js']['qtrans_integrate_title'];
	$content .= $q_config['js']['qtrans_get_active_language'];
	$content .= $q_config['js']['qtrans_hook_on_tinyMCE'];

	$content .="function qtrans_editorInit1() {\n";
	$content .= $q_config['js']['qtrans_switch'];
	
	// insert language, visual and html buttons
	$el = qtrans_getSortedLanguages();
	foreach($el as $language) {
		$content .= qtrans_insertTitleInput($language);
	}
	$el = qtrans_getSortedLanguages(true);
	foreach($el as $language) {
		$content .= qtrans_createEditorToolbarButton($language, $id);
	}
	
	$content = apply_filters('qtranslate_toolbar', $content);
	
	// hide old title bar
	$content .= "document.getElementById('titlediv').style.display='none';\n";
	
	$content .="}\n";
	$content .="// ]]>\n</script>\n";
	
	$content_append .="<script type=\"text/javascript\">\n// <![CDATA[\n";
	$content_append .="function qtrans_editorInit2() {\n";
	
	// show default language tab
	$content_append .="document.getElementById('qtrans_select_".$q_config['default_language']."').className='wp-switch-editor switch-tmce switch-html';\n";
	// show default language
	$content_append .="var text = document.getElementById('".$id."').value;\n";
	$content_append .="qtrans_assign('qtrans_textarea_".$id."',qtrans_use('".$q_config['default_language']."',text));\n";
	
	$content_append .="}\n";

	$content_append .="function qtrans_editorInit3() {\n";
	// make tinyMCE and mediauploader get the correct data
	$content_append .=$q_config['js']['qtrans_tinyMCEOverload'];
	$content_append .=$q_config['js']['qtrans_wpActiveEditorOverload'];
	$content_append .="}\n";
	$content_append .=$q_config['js']['qtrans_editorInit'];
	if($init_editor) {
		$content_append .=$q_config['js']['qtrans_wpOnload'];
	} else {
		$content_append .="var qtmsg = document.getElementById('qtrans_imsg');\n";
		$content_append .="var et = document.getElementById('wp-".$id."-editor-tools');\n";
		$content_append .="et.parentNode.insertBefore(qtmsg, et);\n";
	}
	$content_append = apply_filters('qtranslate_modify_editor_js', $content_append);
	$content_append .="// ]]>\n</script>\n";
	
	return $content.$old_content.$content_append;
}

function qtrans_modifyExcerpt() {
	global $q_config;
	echo "<script type=\"text/javascript\">\n// <![CDATA[\n";
	echo "if(jQuery('#excerpt').size()>0) {";
	echo $q_config['js']['qtrans_is_array'];
	echo $q_config['js']['qtrans_xsplit'];
	echo $q_config['js']['qtrans_split'];
	echo $q_config['js']['qtrans_integrate'];
	echo $q_config['js']['qtrans_switch_postbox'];
	echo $q_config['js']['qtrans_use'];
	$el = qtrans_getSortedLanguages();
	foreach($el as $language) {
		echo qtrans_createTitlebarButton('postexcerpt', $language, 'excerpt', 'qtrans_switcher_postexcerpt_'.$language);
		echo qtrans_createTextArea('postexcerpt', $language, 'excerpt', 'qtrans_switcher_postexcerpt_'.$language);
	}
	echo "qtrans_switch_postbox('postexcerpt','excerpt','".$q_config['default_language']."', false);"; 
	echo "jQuery('#excerpt').hide();";
	echo "}";
	echo "// ]]>\n</script>\n";
}

function qtrans_createTitlebarButton($parent, $language, $target, $id) {
	global $q_config;
	$html = "
		jQuery('#".$parent." .handlediv').after('<div class=\"qtranslate_lang_div\" id=\"".$id."\"><img alt=\"".$language."\" title=\"".$q_config['language_name'][$language]."\" src=\"".WP_CONTENT_URL.'/'.$q_config['flag_location'].$q_config['flag'][$language]."\" /></div>');
		jQuery('#".$id."').click(function() {qtrans_switch_postbox('".$parent."','".$target."','".$language."');});
		";
	return $html;
}

function qtrans_createTextArea($parent, $language, $target, $id) {
	global $q_config;
	$html = "
		jQuery('#".$target."').after('<textarea name=\"qtrans_textarea_".$target."_".$language."\" id=\"qtrans_textarea_".$target."_".$language."\"></textarea>');
		jQuery('#qtrans_textarea_".$target."_".$language."').attr('cols', jQuery('#".$target."').attr('cols'));
		jQuery('#qtrans_textarea_".$target."_".$language."').attr('rows', jQuery('#".$target."').attr('rows'));
		jQuery('#qtrans_textarea_".$target."_".$language."').attr('tabindex', jQuery('#".$target."').attr('tabindex'));
		jQuery('#qtrans_textarea_".$target."_".$language."').blur(function() {qtrans_switch_postbox('".$parent."','".$target."',false);});
		jQuery('#qtrans_textarea_".$target."_".$language."').val(qtrans_use('".$language."',jQuery('#".$target."').val()));
		";
	return $html;
}

function qtrans_insertTermInput($id,$name,$term,$language){
	global $q_config;
	$html ="
		var il = document.getElementsByTagName('input');
		var d =  document.createElement('div');
		var l = document.createTextNode('".$name." (".$q_config['language_name'][$language].")');
		var ll = document.createElement('label');
		var i = document.createElement('input');
		var ins = null;
		for(var j = 0; j < il.length; j++) {
			if(il[j].id=='".$id."') {
				ins = il[j];
				break;
			}
		}
		i.type = 'text';
		i.id = i.name = ll.htmlFor ='qtrans_term_".$language."';
	";
	if(isset($q_config['term_name'][$term][$language])) {
	$html .="
		i.value = '".addslashes(htmlspecialchars_decode($q_config['term_name'][$term][$language], ENT_NOQUOTES))."';
		";
	} else {
	$html .="
		i.value = ins.value;
		";
	}
	if($language == $q_config['default_language']) {
		$html .="
			i.onchange = function() { 
				var il = document.getElementsByTagName('input');
				var ins = null;
				for(var j = 0; j < il.length; j++) {
					if(il[j].id=='".$id."') {
						ins = il[j];
						break;
					}
				}
				ins.value = document.getElementById('qtrans_term_".$language."').value;
			};
			";
	}
	$html .="
		ins = ins.parentNode;
		d.className = 'form-field form-required';
		ll.appendChild(l);
		d.appendChild(ll);
		d.appendChild(i);
		ins.parentNode.insertBefore(d,ins);
		";
	return $html;	
}

function qtrans_insertTermInput2($id,$name,$term,$language){
	global $q_config;
	$html ="
		var tr = document.createElement('tr');
		var th = document.createElement('th');
		var ll = document.createElement('label');
		var l = document.createTextNode('".$name." (".$q_config['language_name'][$language].")');
		var td = document.createElement('td');
		var i = document.createElement('input');
		var ins = document.getElementById('".$id."');
		i.type = 'text';
		i.id = i.name = ll.htmlFor ='qtrans_term_".$language."';
	";
	if(isset($q_config['term_name'][$term][$language])) {
	$html .="
		i.value = '".addslashes(htmlspecialchars_decode($q_config['term_name'][$term][$language], ENT_QUOTES))."';
		";
	} else {
	$html .="
		i.value = ins.value;
		";
	}
	if($language == $q_config['default_language']) {
		$html .="
			i.onchange = function() { 
				var il = document.getElementsByTagName('input');
				var ins = null;
				for(var j = 0; j < il.length; j++) {
					if(il[j].id=='".$id."') {
						ins = il[j];
						break;
					}
				}
				ins.value = document.getElementById('qtrans_term_".$language."').value;
			};
			";
	}
	$html .="
		ins = ins.parentNode.parentNode;
		tr.className = 'form-field form-required';
		th.scope = 'row';
		th.vAlign = 'top';
		ll.appendChild(l);
		th.appendChild(ll);
		tr.appendChild(th);
		td.appendChild(i);
		tr.appendChild(td);
		ins.parentNode.insertBefore(tr,ins);
		";
	return $html;
}

function qtrans_insertTitleInput($language){
	global $q_config;
	$html ="
		var td = document.getElementById('titlediv');
		var qtd = document.createElement('div');
		var h = document.createElement('h3');
		var l = document.createTextNode('".__("Title", 'qtranslate')." (".$q_config['language_name'][$language].")');
		var tw = document.createElement('div');
		var ti = document.createElement('input');
		var slug = document.getElementById('edit-slug-box');
		
		ti.type = 'text';
		ti.id = 'qtrans_title_".$language."';
		ti.tabIndex = '1';
		ti.value = qtrans_use('".$language."', document.getElementById('title').value);
		ti.onchange = qtrans_integrate_title;
		ti.className = 'qtrans_title_input';
		h.className = 'qtrans_title';
		tw.className = 'qtrans_title_wrap';
		
		qtd.className = 'postarea';
		
		h.appendChild(l);
		tw.appendChild(ti);
		qtd.appendChild(h);
		qtd.appendChild(tw);";
	if($q_config['default_language'] == $language)
		$html.="if(slug) qtd.appendChild(slug);";
	$html.="
		td.parentNode.insertBefore(qtd,td);
		
		";
	return $html;	
}

function qtrans_createEditorToolbarButton($language, $id, $js_function = 'switchEditors.go', $label = ''){
	global $q_config;
	$html = "
		var bc = document.getElementById('wp-".$id."-editor-tools');
		var mb = document.getElementById('wp-".$id."-media-buttons');
		var ls = document.createElement('a');
		var l = document.createTextNode('".(($label==='')?$q_config['language_name'][$language]:$label)."');
		ls.id = 'qtrans_select_".$language."';
		ls.className = 'wp-switch-editor';
		ls.onclick = function() { ".$js_function."('".$id."','".$language."'); };
		ls.appendChild(l);
		bc.insertBefore(ls,mb);
		";
	return $html;
}
?>

Great. It works.

After applying these files in Wordpress 4.0 the "add new media" button is broken. Same for featured image. Anyone have a fix?

I have the same issue as @Rainju has.

Hey thanks for this files !!

It's work fine on WP3.9, but we have a new problem with the new update of wordpress WP4.3
It's an update with the new Visual Editor and qTranslate freeze the tabs for switch with another language
and Visual Editor not working. Someone find solution for fix that ?

Thanks for help !

THANK YOU!!

This fixes the problem with the height of the new post edit window beeing too small:

--- a/wp-content/plugins/qtranslate/qtranslate_hooks.php
+++ b/wp-content/plugins/qtranslate/qtranslate_hooks.php
@@ -96,6 +96,7 @@ function qtrans_adminHeader() {
        echo "#postexcerpt textarea { height:4em; margin:0; width:98% }";
        echo ".qtranslate_lang_div { float:right; height:12px; width:18px; padding:6px 5px 8px 5px; cursor:pointer }";
        echo ".qtranslate_lang_div.active { background: #DFDFDF; border-left:1px solid #D0D0D0; border-right: 1px solid #F7F7F7; padding:6px 4px 8px 4px }";
+       echo "#qtrans_textarea_content_ifr { min-height:450px !important; }";
        do_action('qtranslate_css');
        echo "</style>\n";
        return qtrans_optionFilter('disable');

Seems that mqtranslate is not longer maintaned ??

I found this other fork (qtranslate-X) that seems to be actively maintained: https://wordpress.org/plugins/qtranslate-x/

Very helpful! Thank you!