172 lines
6.0 KiB
PHP
172 lines
6.0 KiB
PHP
<?php
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/**
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* Declaring widgets
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*
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* @package understrap
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*/
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// Exit if accessed directly.
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defined( 'ABSPATH' ) || exit;
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/**
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* Add filter to the parameters passed to a widget's display callback.
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* The filter is evaluated on both the front and the back end!
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*
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* @link https://developer.wordpress.org/reference/hooks/dynamic_sidebar_params/
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*/
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add_filter( 'dynamic_sidebar_params', 'understrap_widget_classes' );
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if ( ! function_exists( 'understrap_widget_classes' ) ) {
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/**
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* Count number of visible widgets in a sidebar and add classes to widgets accordingly,
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* so widgets can be displayed one, two, three or four per row.
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*
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* @global array $sidebars_widgets
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*
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* @param array $params {
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* @type array $args {
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* An array of widget display arguments.
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*
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* @type string $name Name of the sidebar the widget is assigned to.
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* @type string $id ID of the sidebar the widget is assigned to.
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* @type string $description The sidebar description.
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* @type string $class CSS class applied to the sidebar container.
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* @type string $before_widget HTML markup to prepend to each widget in the sidebar.
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* @type string $after_widget HTML markup to append to each widget in the sidebar.
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* @type string $before_title HTML markup to prepend to the widget title when displayed.
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* @type string $after_title HTML markup to append to the widget title when displayed.
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* @type string $widget_id ID of the widget.
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* @type string $widget_name Name of the widget.
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* }
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* @type array $widget_args {
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* An array of multi-widget arguments.
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*
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* @type int $number Number increment used for multiples of the same widget.
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* }
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* }
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* @return array $params
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*/
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function understrap_widget_classes( $params ) {
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global $sidebars_widgets;
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/*
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* When the corresponding filter is evaluated on the front end
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* this takes into account that there might have been made other changes.
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*/
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$sidebars_widgets_count = apply_filters( 'sidebars_widgets', $sidebars_widgets );
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// Only apply changes if sidebar ID is set and the widget's classes depend on the number of widgets in the sidebar.
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if ( isset( $params[0]['id'] ) && strpos( $params[0]['before_widget'], 'dynamic-classes' ) ) {
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$sidebar_id = $params[0]['id'];
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$widget_count = count( $sidebars_widgets_count[ $sidebar_id ] );
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$widget_classes = 'widget-count-' . $widget_count;
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if ( 0 === $widget_count % 4 || $widget_count > 6 ) {
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// Four widgets per row if there are exactly four or more than six.
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$widget_classes .= ' col-md-3';
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} elseif ( 6 === $widget_count ) {
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// If two widgets are published.
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$widget_classes .= ' col-md-2';
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} elseif ( $widget_count >= 3 ) {
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// Three widgets per row if there's three or more widgets.
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$widget_classes .= ' col-md-4';
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} elseif ( 2 === $widget_count ) {
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// If two widgets are published.
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$widget_classes .= ' col-md-6';
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} elseif ( 1 === $widget_count ) {
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// If just on widget is active.
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$widget_classes .= ' col-md-12';
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}
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// Replace the placeholder class 'dynamic-classes' with the classes stored in $widget_classes.
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$params[0]['before_widget'] = str_replace( 'dynamic-classes', $widget_classes, $params[0]['before_widget'] );
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}
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return $params;
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}
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} // endif function_exists( 'understrap_widget_classes' ).
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add_action( 'widgets_init', 'understrap_widgets_init' );
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if ( ! function_exists( 'understrap_widgets_init' ) ) {
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/**
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* Initializes themes widgets.
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*/
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function understrap_widgets_init() {
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register_sidebar(
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array(
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'name' => __( 'Right Sidebar', 'understrap' ),
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'id' => 'right-sidebar',
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'description' => __( 'Right sidebar widget area', 'understrap' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => '</aside>',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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)
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);
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register_sidebar(
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array(
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'name' => __( 'Left Sidebar', 'understrap' ),
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'id' => 'left-sidebar',
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'description' => __( 'Left sidebar widget area', 'understrap' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => '</aside>',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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)
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);
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register_sidebar(
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array(
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'name' => __( 'Hero Slider', 'understrap' ),
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'id' => 'hero',
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'description' => __( 'Hero slider area. Place two or more widgets here and they will slide!', 'understrap' ),
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'before_widget' => '<div class="carousel-item">',
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'after_widget' => '</div>',
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'before_title' => '',
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'after_title' => '',
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)
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);
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register_sidebar(
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array(
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'name' => __( 'Hero Canvas', 'understrap' ),
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'id' => 'herocanvas',
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'description' => __( 'Full size canvas hero area for Bootstrap and other custom HTML markup', 'understrap' ),
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'before_widget' => '',
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'after_widget' => '',
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'before_title' => '',
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'after_title' => '',
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)
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);
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register_sidebar(
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array(
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'name' => __( 'Top Full', 'understrap' ),
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'id' => 'statichero',
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'description' => __( 'Full top widget with dynamic grid', 'understrap' ),
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'before_widget' => '<div id="%1$s" class="footer-widget %2$s dynamic-classes">',
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'after_widget' => '</div><!-- .static-hero-widget -->',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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)
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);
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register_sidebar(
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array(
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'name' => __( 'Footer Full', 'understrap' ),
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'id' => 'footerfull',
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'description' => __( 'Full sized footer widget with dynamic grid', 'understrap' ),
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'before_widget' => '<div id="%1$s" class="footer-widget %2$s dynamic-classes">',
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'after_widget' => '</div><!-- .footer-widget -->',
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'before_title' => '<h3 class="widget-title">',
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'after_title' => '</h3>',
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)
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);
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}
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} // endif function_exists( 'understrap_widgets_init' ).
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