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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 $polylang; |
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if (!(isset($polylang) && $polylang->get_languages_list() && $list = $polylang->the_languages(array_merge($instance, array('echo' => 0))))) |
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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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echo "$before_widget\n"; |
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if ($title = apply_filters('widget_title', $title, $instance, $this->id_base)) |
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echo $before_title . $title . $after_title; |
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echo $dropdown ? $list : "<ul>\n" . $list . "</ul>\n"; |
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echo "$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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if ($dropdown) { |
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foreach ($polylang->get_languages_list() as $language) { |
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$url = $force_home || ($url = $polylang->get_translation_url($language)) == null ? $polylang->get_home_url($language) : $url; |
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$urls[] = '"'.esc_js($language->slug).'":"'.esc_url($url).'"'; |
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} |
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|
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$urls = implode(',', $urls); |
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|
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$js = " |
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<script type='text/javascript'> |
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//<![CDATA[ |
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var urls = {{$urls}}; |
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var d = document.getElementById('lang_choice'); |
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d.onchange = function() { |
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for (var i in urls) { |
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if (this.value == i) |
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location.href = urls[i]; |
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} |
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} |
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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($new_instance['title']); |
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foreach (array_keys($GLOBALS['polylang']->get_switcher_options('widget')) 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_merge(array('title' => ''), $GLOBALS['polylang']->get_switcher_options('widget', 'default')) ); |
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|
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// title |
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$title = sprintf( |
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'<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'), |
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__('Title:', 'polylang'), |
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$this->get_field_name('title'), |
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esc_attr($instance['title']) |
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); |
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|
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$fields = ''; |
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foreach ($GLOBALS['polylang']->get_switcher_options('widget') as $key => $str) |
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$fields .= sprintf( |
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'<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($key), |
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$this->get_field_name($key), |
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$instance[$key] ? 'checked="checked"' : '', |
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esc_html($str) |
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); |
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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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|
