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<?php |
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|
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// the language switcher widget |
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class Polylang_Widget extends WP_Widget { |
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function __construct() { |
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parent::__construct('polylang', __('Language Switcher', 'polylang'), array( 'description' => __( 'Displays a language switcher', 'polylang'))); |
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} |
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|
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// displays the widget |
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function widget($args, $instance) { |
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global $polylang; |
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|
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// prevents the function to be called from admin side where $polylang is not defined |
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if (!isset($polylang)) |
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return; |
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|
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extract($args); |
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extract($instance); |
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|
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$title = apply_filters('widget_title', $title, $instance, $this->id_base); |
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|
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echo "$before_widget\n"; |
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if ($title) |
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echo $before_title . $title . $after_title; |
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$polylang->the_languages($instance); |
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echo "$after_widget\n"; |
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|
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// javascript to switch the language when using a dropdown list |
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// keep the things simple for now as we switch to the posts page |
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if ($dropdown) { |
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$url = home_url('?lang='); |
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$home_url = get_option('home'); |
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$options = get_option('polylang'); |
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$default = $options['hide_default'] ? esc_js($options['default_lang']) : ''; |
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|
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$js = " |
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<script type='text/javascript'> |
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var d = document.getElementById('lang_choice'); |
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d.onchange = function() { |
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if (this.value == '$default') |
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location.href = '$home_url'; |
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else |
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location.href ='$url'+this.value; |
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} |
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</script>"; |
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|
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echo $js; |
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} |
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} |
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|
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// updates the widget options |
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function update( $new_instance, $old_instance ) { |
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$instance['title'] = strip_tags($new_instance['title']); |
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foreach ( array('show_names', 'show_flags','dropdown', 'force_home') as $key) |
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$instance[$key] = !empty($new_instance[$key]) ? 1 : 0; |
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|
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return $instance; |
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} |
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|
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// displays the widget form |
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function form($instance) { |
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// default values |
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$instance = wp_parse_args( (array) $instance, array( 'title' => '', 'show_names' => 1, 'show_flags' => 0, 'dropdown' => 0, 'force_home' => 0) ); |
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|
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// title |
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$title = sprintf('<p><label for="%1$s">%2$s</label><input class="widefat" id="%1$s" name="%3$s" type="text" value="%4$s" /></p>', |
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$this->get_field_id('title'), __('Title:', 'polylang'), $this->get_field_name('title'), esc_attr($instance['title'])); |
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|
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$widget_options = array ( |
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'show_names' => __('Displays language names', 'polylang'), |
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'show_flags' => __('Displays flags', 'polylang'), |
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'dropdown' => __('Displays as dropdown', 'polylang'), |
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'force_home' => __('Forces link to front page', 'polylang') |
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); |
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|
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$fields = ''; |
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foreach ($widget_options as $key=>$str) |
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$fields .= sprintf('<input type="checkbox" class="checkbox" id="%1$s" name="%2$s" %3$s /> <label for="%1$s">%4$s</label><br />', |
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$this->get_field_id($key), $this->get_field_name($key), $instance[$key] ? 'checked="checked"' : '', esc_html($str)); |
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|
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echo $title.'<p>'.$fields.'</p>'; |
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} |
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} |
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?> |
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