| 1 |
<?php |
| 2 |
/** |
| 3 |
* @package Polylang |
| 4 |
*/ |
| 5 |
|
| 6 |
/** |
| 7 |
* The language switcher widget |
| 8 |
* |
| 9 |
* @since 0.1 |
| 10 |
*/ |
| 11 |
class PLL_Widget_Languages extends WP_Widget { |
| 12 |
|
| 13 |
/** |
| 14 |
* Constructor |
| 15 |
* |
| 16 |
* @since 0.1 |
| 17 |
*/ |
| 18 |
public function __construct() { |
| 19 |
parent::__construct( |
| 20 |
'polylang', |
| 21 |
__( 'Language switcher', 'polylang' ), |
| 22 |
array( |
| 23 |
'description' => __( 'Displays a language switcher', 'polylang' ), |
| 24 |
'customize_selective_refresh' => true, |
| 25 |
) |
| 26 |
); |
| 27 |
} |
| 28 |
|
| 29 |
/** |
| 30 |
* Displays the widget |
| 31 |
* |
| 32 |
* @since 0.1 |
| 33 |
* |
| 34 |
* @param array $args Display arguments including before_title, after_title, before_widget, and after_widget. |
| 35 |
* @param array $instance The settings for the particular instance of the widget |
| 36 |
* @return void |
| 37 |
*/ |
| 38 |
public function widget( $args, $instance ) { |
| 39 |
// Sets a unique id for dropdown. |
| 40 |
$instance['dropdown'] = empty( $instance['dropdown'] ) ? 0 : $this->id; |
| 41 |
|
| 42 |
if ( $list = pll_the_languages( array_merge( $instance, array( 'echo' => 0 ) ) ) ) { |
| 43 |
$title = empty( $instance['title'] ) ? '' : $instance['title']; |
| 44 |
|
| 45 |
/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */ |
| 46 |
$title = apply_filters( 'widget_title', $title, $instance, $this->id_base ); |
| 47 |
|
| 48 |
echo $args['before_widget']; // phpcs:ignore WordPress.Security.EscapeOutput |
| 49 |
|
| 50 |
if ( $title ) { |
| 51 |
echo $args['before_title'] . $title . $args['after_title']; // phpcs:ignore WordPress.Security.EscapeOutput |
| 52 |
} |
| 53 |
|
| 54 |
// The title may be filtered: Strip out HTML and make sure the aria-label is never empty. |
| 55 |
$aria_label = trim( wp_strip_all_tags( $title ) ); |
| 56 |
if ( ! $aria_label ) { |
| 57 |
$aria_label = __( 'Choose a language', 'polylang' ); |
| 58 |
} |
| 59 |
|
| 60 |
if ( $instance['dropdown'] ) { |
| 61 |
echo '<label class="screen-reader-text" for="' . esc_attr( 'lang_choice_' . $instance['dropdown'] ) . '">' . esc_html( $aria_label ) . '</label>'; |
| 62 |
echo $list; // phpcs:ignore WordPress.Security.EscapeOutput |
| 63 |
} else { |
| 64 |
$format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml'; |
| 65 |
|
| 66 |
/** This filter is documented in wp-includes/widgets/class-wp-nav-menu-widget.php */ |
| 67 |
$format = apply_filters( 'navigation_widgets_format', $format ); |
| 68 |
|
| 69 |
if ( 'html5' === $format ) { |
| 70 |
echo '<nav aria-label="' . esc_attr( $aria_label ) . '">'; |
| 71 |
} |
| 72 |
|
| 73 |
echo "<ul>\n" . $list . "</ul>\n"; // phpcs:ignore WordPress.Security.EscapeOutput |
| 74 |
|
| 75 |
if ( 'html5' === $format ) { |
| 76 |
echo '</nav>'; |
| 77 |
} |
| 78 |
} |
| 79 |
|
| 80 |
echo $args['after_widget']; // phpcs:ignore WordPress.Security.EscapeOutput |
| 81 |
} |
| 82 |
} |
| 83 |
|
| 84 |
/** |
| 85 |
* Updates the widget options |
| 86 |
* |
| 87 |
* @since 0.4 |
| 88 |
* |
| 89 |
* @param array $new_instance New settings for this instance as input by the user via form() |
| 90 |
* @param array $old_instance Old settings for this instance |
| 91 |
* @return array Settings to save or bool false to cancel saving |
| 92 |
*/ |
| 93 |
public function update( $new_instance, $old_instance ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 94 |
$instance = array( 'title' => sanitize_text_field( $new_instance['title'] ) ); |
| 95 |
foreach ( array_keys( PLL_Switcher::get_switcher_options( 'widget' ) ) as $key ) { |
| 96 |
$instance[ $key ] = ! empty( $new_instance[ $key ] ) ? 1 : 0; |
| 97 |
} |
| 98 |
|
| 99 |
return $instance; |
| 100 |
} |
| 101 |
|
| 102 |
/** |
| 103 |
* Displays the widget form. |
| 104 |
* |
| 105 |
* @since 0.4 |
| 106 |
* |
| 107 |
* @param array $instance Current settings. |
| 108 |
* @return string |
| 109 |
*/ |
| 110 |
public function form( $instance ) { |
| 111 |
// Default values |
| 112 |
$instance = wp_parse_args( (array) $instance, array_merge( array( 'title' => '' ), PLL_Switcher::get_switcher_options( 'widget', 'default' ) ) ); |
| 113 |
|
| 114 |
// Title |
| 115 |
printf( |
| 116 |
'<p><label for="%1$s">%2$s</label><input class="widefat" id="%1$s" name="%3$s" type="text" value="%4$s" /></p>', |
| 117 |
esc_attr( $this->get_field_id( 'title' ) ), |
| 118 |
esc_html__( 'Title:', 'polylang' ), |
| 119 |
esc_attr( $this->get_field_name( 'title' ) ), |
| 120 |
esc_attr( $instance['title'] ) |
| 121 |
); |
| 122 |
|
| 123 |
foreach ( PLL_Switcher::get_switcher_options( 'widget' ) as $key => $str ) { |
| 124 |
printf( |
| 125 |
'<div%5$s%6$s><input type="checkbox" class="checkbox %7$s" id="%1$s" name="%2$s"%3$s /><label for="%1$s">%4$s</label></div>', |
| 126 |
esc_attr( $this->get_field_id( $key ) ), |
| 127 |
esc_attr( $this->get_field_name( $key ) ), |
| 128 |
checked( $instance[ $key ], true, false ), |
| 129 |
esc_html( $str ), |
| 130 |
in_array( $key, array( 'show_names', 'show_flags', 'hide_current' ) ) ? sprintf( ' class="no-dropdown-%s"', esc_attr( $this->id ) ) : '', |
| 131 |
( ! empty( $instance['dropdown'] ) && in_array( $key, array( 'show_names', 'show_flags', 'hide_current' ) ) ? ' style="display:none;"' : '' ), |
| 132 |
esc_attr( 'pll-' . $key ) |
| 133 |
); |
| 134 |
} |
| 135 |
|
| 136 |
return ''; // Because the parent class returns a string, however not used. |
| 137 |
} |
| 138 |
} |
| 139 |
|
