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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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namespace core\hook\output;
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/**
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* Hook to allow subscribers to add HTML content after the main region content has been generated.
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*
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* @package core
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* @copyright 2024 Andrew Lyons <andrew@nicols.co.uk>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @property-read \renderer_base $renderer The page renderer object
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*/
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#[\core\attribute\tags('output')]
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#[\core\attribute\label('Allows plugins to add any elements to the footer before JS is finalized')]
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#[\core\attribute\hook\replaces_callbacks('standard_after_main_region_html')]
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final class after_standard_main_region_html_generation {
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/**
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* Hook to allow subscribers to add HTML content after the main region content has been generated.
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*
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* @param renderer_base $renderer
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* @param string $output Initial output
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*/
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public function __construct(
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/** @var \renderer_base The page renderer object */
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public readonly \renderer_base $renderer,
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/** @var string The collected output */
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private string $output = '',
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) {
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}
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/**
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* Plugins implementing callback can add any HTML to the top of the body.
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*
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* Must be a string containing valid html head content.
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*
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* @param null|string $output
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*/
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public function add_html(?string $output): void {
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if ($output) {
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$this->output .= $output;
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}
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}
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/**
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* Returns all HTML added by the plugins
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*
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* @return string
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*/
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public function get_output(): string {
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return $this->output;
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}
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/**
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* Process legacy callbacks.
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*/
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public function process_legacy_callbacks(): void {
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$pluginswithfunction = get_plugins_with_function(function: 'standard_after_main_region_html', migratedtohook: true);
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foreach ($pluginswithfunction as $plugins) {
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foreach ($plugins as $function) {
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$extrafooter = $function();
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if (is_string($extrafooter)) {
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$this->add_html($extrafooter);
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}
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}
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}
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}
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}
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