<?php declare(strict_types=1);
class CustomHtmlHeaders extends Extension
{
# Adds setup block for custom <head> content
public function onSetupBuilding(SetupBuildingEvent $event)
{
$sb = new SetupBlock("Custom HTML Headers");
// custom headers
$sb->add_longtext_option(
"custom_html_headers",
"HTML Code to place within <head></head> on all pages<br>"
);
// modified title
$sb->add_choice_option("sitename_in_title", [
"none" => "none",
"as prefix" => "prefix",
"as suffix" => "suffix"
], "<br>Add website name in title");
$event->panel->add_block($sb);
}
public function onInitExt(InitExtEvent $event)
{
global $config;
$config->set_default_string("sitename_in_title", "none");
}
# Load Analytics tracking code on page request
public function onPageRequest(PageRequestEvent $event)
{
$this->handle_custom_html_headers();
$this->handle_modified_page_title();
}
private function handle_custom_html_headers()
{
global $config, $page;
$header = $config->get_string('custom_html_headers', '');
if ($header!='') {
$page->add_html_header($header);
}
}
private function handle_modified_page_title()
{
global $config, $page;
// get config values
$site_title = $config->get_string(SetupConfig::TITLE);
$sitename_in_title = $config->get_string("sitename_in_title");
// sitename is already in title (can occur on index & other pages)
if (str_contains($page->title, $site_title)) {
return;
}
if ($sitename_in_title == "prefix") {
$page->title = "$site_title - $page->title";
} elseif ($sitename_in_title == "suffix") {
$page->title = "$page->title - $site_title";
}
}
}