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language/en-GB/en-GB.plg_system_languagecode.ini000064400000001651151160330750015477
0ustar00; Joomla! Project
; Copyright (C) 2005 - 2020 Open Source Matters. All rights reserved.
; License GNU General Public License version 2 or later; see LICENSE.txt
; Note : All ini files need to be saved as UTF-8
PLG_SYSTEM_LANGUAGECODE="System - Language Code"
PLG_SYSTEM_LANGUAGECODE_FIELD_DESC="Changes the language code used for
the <em>%s</em> language."
PLG_SYSTEM_LANGUAGECODE_FIELDSET_DESC="Changes the language code for
the generated HTML document. Example usage: You have installed the fr-FR
language pack and want the Search Engines to recognise the page as aimed at
French-speaking Canada. Add the tag 'fr-CA' to the corresponding
field for 'fr-FR' to resolve this."
PLG_SYSTEM_LANGUAGECODE_FIELDSET_LABEL="Language codes"
PLG_SYSTEM_LANGUAGECODE_XML_DESCRIPTION="Provides the ability to
change the language code in the generated HTML document to improve
SEO.<br />The fields will appear when the plugin is enabled and
saved."
language/en-GB/en-GB.plg_system_languagecode.sys.ini000064400000000612151160330750016310
0ustar00; Joomla! Project
; Copyright (C) 2005 - 2020 Open Source Matters. All rights reserved.
; License GNU General Public License version 2 or later; see LICENSE.txt
; Note : All ini files need to be saved as UTF-8
PLG_SYSTEM_LANGUAGECODE="System - Language Code"
PLG_SYSTEM_LANGUAGECODE_XML_DESCRIPTION="Provides ability to change
the language code in the generated HTML document to improve SEO"
languagecode.php000064400000010030151160330750007666 0ustar00<?php
/**
* @package Joomla.Plugin
* @subpackage System.languagecode
*
* @copyright Copyright (C) 2005 - 2020 Open Source Matters, Inc. All
rights reserved.
* @license GNU General Public License version 2 or later; see
LICENSE.txt
*/
defined('_JEXEC') or die;
/**
* Language Code plugin class.
*
* @since 2.5
*/
class PlgSystemLanguagecode extends JPlugin
{
/**
* Plugin that changes the language code used in the <html /> tag.
*
* @return void
*
* @since 2.5
*/
public function onAfterRender()
{
$app = JFactory::getApplication();
// Use this plugin only in site application.
if ($app->isClient('site'))
{
// Get the response body.
$body = $app->getBody();
// Get the current language code.
$code = JFactory::getDocument()->getLanguage();
// Get the new code.
$new_code = $this->params->get($code);
// Replace the old code by the new code in the <html /> tag.
if ($new_code)
{
// Replace the new code in the HTML document.
$patterns = array(
chr(1) . '(<html.*\s+xml:lang=")(' . $code .
')(".*>)' . chr(1) . 'i',
chr(1) . '(<html.*\s+lang=")(' . $code .
')(".*>)' . chr(1) . 'i',
);
$replace = array(
'${1}' . strtolower($new_code) . '${3}',
'${1}' . strtolower($new_code) . '${3}'
);
}
else
{
$patterns = array();
$replace = array();
}
// Replace codes in <link hreflang="" /> attributes.
preg_match_all(chr(1) .
'(<link.*\s+hreflang=")([0-9a-z\-]*)(".*\s+rel="alternate".*/>)'
. chr(1) . 'i', $body, $matches);
foreach ($matches[2] as $match)
{
$new_code = $this->params->get(strtolower($match));
if ($new_code)
{
$patterns[] = chr(1) . '(<link.*\s+hreflang=")(' .
$match . ')(".*\s+rel="alternate".*/>)' .
chr(1) . 'i';
$replace[] = '${1}' . $new_code . '${3}';
}
}
preg_match_all(chr(1) .
'(<link.*\s+rel="alternate".*\s+hreflang=")([0-9A-Za-z\-]*)(".*/>)'
. chr(1) . 'i', $body, $matches);
foreach ($matches[2] as $match)
{
$new_code = $this->params->get(strtolower($match));
if ($new_code)
{
$patterns[] = chr(1) .
'(<link.*\s+rel="alternate".*\s+hreflang=")(' .
$match . ')(".*/>)' . chr(1) . 'i';
$replace[] = '${1}' . $new_code . '${3}';
}
}
// Replace codes in itemprop content
preg_match_all(chr(1) .
'(<meta.*\s+itemprop="inLanguage".*\s+content=")([0-9A-Za-z\-]*)(".*/>)'
. chr(1) . 'i', $body, $matches);
foreach ($matches[2] as $match)
{
$new_code = $this->params->get(strtolower($match));
if ($new_code)
{
$patterns[] = chr(1) .
'(<meta.*\s+itemprop="inLanguage".*\s+content=")('
. $match . ')(".*/>)' . chr(1) . 'i';
$replace[] = '${1}' . $new_code . '${3}';
}
}
$app->setBody(preg_replace($patterns, $replace, $body));
}
}
/**
* Prepare form.
*
* @param JForm $form The form to be altered.
* @param mixed $data The associated data for the form.
*
* @return boolean
*
* @since 2.5
*/
public function onContentPrepareForm(JForm $form, $data)
{
// Check we are manipulating the languagecode plugin.
if ($form->getName() !== 'com_plugins.plugin' ||
!$form->getField('languagecodeplugin', 'params'))
{
return true;
}
// Get site languages.
if ($languages = JLanguageHelper::getKnownLanguages(JPATH_SITE))
{
// Inject fields into the form.
foreach ($languages as $tag => $language)
{
$form->load('
<form>
<fields name="params">
<fieldset
name="languagecode"
label="PLG_SYSTEM_LANGUAGECODE_FIELDSET_LABEL"
description="PLG_SYSTEM_LANGUAGECODE_FIELDSET_DESC"
>
<field
name="' . strtolower($tag) . '"
type="text"
label="' . $tag . '"
description="' .
htmlspecialchars(JText::sprintf('PLG_SYSTEM_LANGUAGECODE_FIELD_DESC',
$language['name']), ENT_COMPAT, 'UTF-8') . '"
translate_description="false"
translate_label="false"
size="7"
filter="cmd"
/>
</fieldset>
</fields>
</form>
');
}
}
return true;
}
}
languagecode.xml000064400000002022151160330750007701 0ustar00<?xml
version="1.0" encoding="utf-8"?>
<extension version="3.1" type="plugin"
group="system" method="upgrade">
<name>plg_system_languagecode</name>
<author>Joomla! Project</author>
<creationDate>November 2011</creationDate>
<copyright>Copyright (C) 2005 - 2020 Open Source Matters. All rights
reserved.</copyright>
<license>GNU General Public License version 2 or later; see
LICENSE.txt</license>
<authorEmail>admin@joomla.org</authorEmail>
<authorUrl>www.joomla.org</authorUrl>
<version>3.0.0</version>
<description>PLG_SYSTEM_LANGUAGECODE_XML_DESCRIPTION</description>
<files>
<filename
plugin="languagecode">languagecode.php</filename>
<folder>language</folder>
</files>
<languages>
<language
tag="en-GB">language/en-GB/en-GB.plg_system_languagecode.ini</language>
<language
tag="en-GB">language/en-GB/en-GB.plg_system_languagecode.sys.ini</language>
</languages>
<config>
<fields name="params">
<field
name="languagecodeplugin"
type="hidden"
default="true"
/>
</fields>
</config>
</extension>