173 lines
6.2 KiB
PHP
173 lines
6.2 KiB
PHP
<?php
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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/*
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* ███ ███ ██████ ██████ ██ ██ ██ ███████ ███████
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* ████ ████ ██ ██ ██ ██ ██ ██ ██ ██ ██
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* ██ ████ ██ ██ ██ ██ ██ ██ ██ ██ █████ ███████
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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* ██ ██ ██████ ██████ ██████ ███████ ███████ ███████
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*/
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/** A list of all the currently loaded modules. Not guaranteed to be populated until an action is executed. @var array */
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$modules = [];
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/**
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* Registers a module.
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* @package core
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* @param array $moduledata The module data to register.
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*/
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function register_module($moduledata)
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{
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global $modules;
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//echo("registering module\n");
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//var_dump($moduledata);
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$modules[] = $moduledata;
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}
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/**
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* Checks to see whether a module with the given id exists.
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* @package core
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* @param string $id The id to search for.
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* @return bool Whether a module is currently loaded with the given id.
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*/
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function module_exists($id)
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{
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global $modules;
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foreach($modules as $module)
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{
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if($module["id"] == $id)
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return true;
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}
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return false;
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}
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/*
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* █████ ██████ ████████ ██ ██████ ███ ██ ███████
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* ██ ██ ██ ██ ██ ██ ██ ████ ██ ██
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* ███████ ██ ██ ██ ██ ██ ██ ██ ██ ███████
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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* ██ ██ ██████ ██ ██ ██████ ██ ████ ███████
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*/
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$actions = new stdClass();
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/**
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* Registers a new action handler.
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* @package core
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* @param string $action_name The action to register.
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* @param callable $func The function to call when the specified
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* action is requested.
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*/
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function add_action($action_name, $func)
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{
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global $actions;
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$actions->$action_name = $func;
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}
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/**
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* Figures out whether a given action is currently registered.
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* Only guaranteed to be accurate in inside an existing action function
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* @package core
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* @param string $action_name The name of the action to search for
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* @return bool Whether an action with the specified name exists.
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*/
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function has_action($action_name)
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{
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global $actions;
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return !empty($actions->$action_name);
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}
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/*
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* ███████ █████ ██ ██ ██ ███ ██ ██████
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* ██ ██ ██ ██ ██ ██ ████ ██ ██
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* ███████ ███████ ██ ██ ██ ██ ██ ██ ██ ███
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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* ███████ ██ ██ ████ ██ ██ ████ ██████
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*/
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$save_preprocessors = [];
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/**
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* Register a new proprocessor that will be executed just before
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* an edit is saved.
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* @package core
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* @param callable $func The function to register.
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*/
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function register_save_preprocessor($func)
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{
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global $save_preprocessors;
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$save_preprocessors[] = $func;
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}
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/*
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* ██ ██ ███████ ██ ██████
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* ██ ██ ██ ██ ██ ██
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* ███████ █████ ██ ██████
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* ██ ██ ██ ██ ██
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* ██ ██ ███████ ███████ ██
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*/
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$help_sections = [];
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/**
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* Adds a new help section to the help page.
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* @package core
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* @param string $index The string to index the new section under.
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* @param string $title The title to display above the section.
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* @param string $content The content to display.
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*/
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function add_help_section($index, $title, $content)
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{
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global $help_sections;
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$help_sections[$index] = [
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"title" => $title,
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"content" => $content
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];
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}
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if(!empty($settings->enable_math_rendering))
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add_help_section("22-mathematical-mxpressions", "Mathematical Expressions", "<p>$settings->sitename supports rendering of mathematical expressions. Mathematical expressions can be included practically anywhere in your page. Expressions should be written in LaTeX and enclosed in dollar signs like this: <code>$x^2$</code>.</p>
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<p>Note that expression parsing is done on the viewer's computer with javascript (specifically MathJax) and not by $settings->sitename directly (also called client side rendering).</p>");
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/*
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* ███████ ████████ █████ ████████ ███████
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* ██ ██ ██ ██ ██ ██
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* ███████ ██ ███████ ██ ███████
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* ██ ██ ██ ██ ██ ██
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* ███████ ██ ██ ██ ██ ███████
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*/
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/** An array of the currently registerd statistic calculators. Not guaranteed to be populated until the requested action function is called. */
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$statistic_calculators = [];
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/**
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* Registers a statistic calculator against the system.
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* @package core
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* @param array $stat_data The statistic object to register.
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*/
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function statistic_add($stat_data) {
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global $statistic_calculators;
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$statistic_calculators[$stat_data["id"]] = $stat_data;
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}
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/**
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* Checks whether a specified statistic has been registered.
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* @package core
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* @param string $stat_id The id of the statistic to check the existence of.
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* @return bool Whether the specified statistic has been registered.
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*/
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function has_statistic($stat_id) {
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global $statistic_calculators;
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return !empty($statistic_calculators[$stat_id]);
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}
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