simpletoc-admin-settings.php

<?php

// Add SimpleTOC global settings page
function simpletoc_add_settings_page() {
    add_options_page(
        __('SimpleTOC Settings', 'simpletoc'),
        __('SimpleTOC', 'simpletoc'),
        'manage_options',
        'simpletoc',
        'simpletoc_settings_page'
    );
}
add_action('admin_menu', 'simpletoc_add_settings_page');

// SimpleTOC settings page content
function simpletoc_settings_page() {
    if (!current_user_can('manage_options')) {
        return;
    }

    ?>
    <div class="wrap">
        <h1><?php _e('SimpleTOC Settings', 'simpletoc'); ?></h1>
        <form method="post" action="options.php">
            <?php
                settings_fields('simpletoc_settings');
                do_settings_sections('simpletoc');
                submit_button();
            ?>
        </form>
    </div>
    <?php
}

// Register SimpleTOC settings
function simpletoc_register_settings() {
    // Register settings and filters for existing features
    $wrapper_enabled_filter = apply_filters('simpletoc_wrapper_enabled', null);
    $accordion_enabled_filter = apply_filters('simpletoc_accordion_enabled', null);
    $smooth_enabled_filter = apply_filters('simpletoc_smooth_enabled', null);
    $absolute_urls_enabled_filter = apply_filters('simpletoc_absolute_urls_enabled', null);
    $autoupdate_enabled_filter = apply_filters('simpletoc_autoupdate_enabled', null);

    if ($wrapper_enabled_filter === null) {
        register_setting('simpletoc_settings', 'simpletoc_wrapper_enabled');
    }

    if ($accordion_enabled_filter === null) {
        register_setting('simpletoc_settings', 'simpletoc_accordion_enabled');
    }

    if ($smooth_enabled_filter === null) {
        register_setting('simpletoc_settings', 'simpletoc_smooth_enabled');
    }

    if ($absolute_urls_enabled_filter === null) {
        register_setting('simpletoc_settings', 'simpletoc_absolute_urls_enabled');
    }

    if ($autoupdate_enabled_filter === null) {
        register_setting('simpletoc_settings', 'simpletoc_autoupdate_enabled', array( 'show_in_rest' => true ) );
    }

    // Add settings sections and fields
    add_settings_section(
        'simpletoc_wrapper_section',
        __('Global settings', 'simpletoc'),
        'simpletoc_wrapper_section_callback',
        'simpletoc'
    );

    add_settings_field(
        'simpletoc_accordion_enabled',
        __('Force accordion menu', 'simpletoc'),
        'simpletoc_accordion_enabled_callback',
        'simpletoc',
        'simpletoc_wrapper_section'
    );

    add_settings_field(
        'simpletoc_wrapper_enabled',
        __('Force wrapper div', 'simpletoc'),
        'simpletoc_wrapper_enabled_callback',
        'simpletoc',
        'simpletoc_wrapper_section'
    );

    add_settings_field(
        'simpletoc_smooth_enabled',
        __('Force smooth scrolling', 'simpletoc'),
        'simpletoc_smooth_enabled_callback',
        'simpletoc',
        'simpletoc_wrapper_section'
    );

    add_settings_field(
        'simpletoc_absolute_urls_enabled',
        __('Force absolute urls', 'simpletoc'),
        'simpletoc_absolute_urls_enabled_callback',
        'simpletoc',
        'simpletoc_wrapper_section'
    );

    // Add the autoupdate settings field
    add_settings_field(
        'simpletoc_autoupdate_enabled',
        __('Force no auto refresh', 'simpletoc'),
        'simpletoc_autoupdate_enabled_callback',
        'simpletoc',
        'simpletoc_wrapper_section'
    );
}

add_action('admin_init', 'simpletoc_register_settings');

function simpletoc_wrapper_section_callback()
{
    $donatelink = '<a href="https://marc.tv/out/donate">' . __('Donate here!', 'simpletoc') . '</a>';

    echo '<p>' .
        __('Enforce these settings globally, ignoring any block-level configurations.', 'simpletoc') . '</p><p>' .
        __('Think about making a donation if you use any of these features.', 'simpletoc') . ' ' .
        $donatelink .
        '</p>';
}

function simpletoc_wrapper_enabled_callback()
{
    $wrapper_enabled = get_option('simpletoc_wrapper_enabled', false);

    if (has_filter('simpletoc_wrapper_enabled')) {
        echo '<input type="checkbox" name="simpletoc_wrapper_enabled" id="simpletoc_wrapper_enabled" value="1" checked="checked" disabled="disabled" />';
        echo '<label for="simpletoc_wrapper_enabled" class="description">' . __('Setting controlled by "simpletoc_wrapper_enabled" filter. Remove filter to adjust setting.', 'simpletoc') . '</label>';
    } else {
        echo '<input type="checkbox" name="simpletoc_wrapper_enabled" id="simpletoc_wrapper_enabled" value="1" ' . checked(1, $wrapper_enabled, false) . ' />';
        echo '<label for="simpletoc_wrapper_enabled" class="description">' . __('Additionally adds the role "navigation" and ARIA attributes.', 'simpletoc') . '</label>';
    }
}

function simpletoc_accordion_enabled_callback()
{
    $accordion_enabled = get_option('simpletoc_accordion_enabled', false);
    if ($accordion_enabled) {
        update_option('simpletoc_wrapper_enabled', true);
    }
    echo '<input type="checkbox" name="simpletoc_accordion_enabled" id="simpletoc_accordion_enabled" value="1" ' . checked(1, $accordion_enabled, false) . ' />';
    echo '<label for="simpletoc_accordion_enabled" class="description">' . __('Adds minimal JavaScript and css styles.', 'simpletoc') . ' <strong>' .  __('Notice:', 'simpletoc') . '</strong> ' . __('This will automatically enable the wrapper div.', 'simpletoc') . '</label>';
}

function simpletoc_smooth_enabled_callback()
{
    $smooth_enabled = get_option('simpletoc_smooth_enabled', false);
    echo '<input type="checkbox" name="simpletoc_smooth_enabled" id="simpletoc_smooth_enabled" value="1" ' . checked(1, $smooth_enabled, false) . ' />';
    echo '<label for="simpletoc_smooth_enabled" class="description">' . __('Adds the following CSS to the HTML element: "scroll-behavior: smooth;"', 'simpletoc') . '</label>';
}

function simpletoc_absolute_urls_enabled_callback()
{
    $absolute_urls_enabled = get_option('simpletoc_absolute_urls_enabled', false);
    echo '<input type="checkbox" name="simpletoc_absolute_urls_enabled" id="simpletoc_absolute_urls_enabled" value="1" ' . checked(1, $absolute_urls_enabled, false) . ' />';
    echo '<label for="simpletoc_absolute_urls_enabled" class="description">' . __('Adds the permalink url to the fragment.', 'simpletoc') . '</label>';
}

function simpletoc_autoupdate_enabled_callback()
{
    $autoupdate_enabled = get_option('simpletoc_autoupdate_enabled', false);
    echo '<input type="checkbox" name="simpletoc_autoupdate_enabled" id="simpletoc_autoupdate_enabled" value="1" ' . checked(1, $autoupdate_enabled, false) . ' />';
    echo '<label for="simpletoc_autoupdate_enabled" class="description">' . __('Deactivate the automatic table of contents refresh feature.', 'simpletoc') . '</label>';
}