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<?php |
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|
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/* |
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* displays languages in a dropdown list |
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* |
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* @since 1.2 |
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*/ |
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class PLL_Walker_Dropdown extends Walker { |
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var $db_fields = array ('parent' => 'parent', 'id' => 'id'); |
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|
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/* |
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* outputs one element |
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* |
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* @since 1.2 |
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* |
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* @see Walker::start_el |
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*/ |
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function start_el( &$output, $element, $depth = 0, $args = array(), $current_object_id = 0 ) { |
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$value = $args['value']; |
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$output .= sprintf( |
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"\t".'<option value="%s"%s>%s</option>'."\n", |
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esc_attr($element->$value), |
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isset($args['selected']) && $args['selected'] === $element->$value ? ' selected="selected"' : '', |
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esc_html($element->name) |
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); |
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} |
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|
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/* |
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* overrides Walker::display_element as expects an object with a parent property |
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* |
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* @since 1.2 |
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* |
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* @see Walker::display_element |
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*/ |
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function display_element( $element, &$children_elements, $max_depth, $depth = 0, $args, &$output ) { |
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$element = (object) $element; // make sure we have an object |
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$element->parent = $element->id = 0; // don't care about this |
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parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output ); |
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} |
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|
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/* |
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* starts the output of the dropdown list |
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* |
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* @since 1.2 |
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* |
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* list of parameters accepted in $args: |
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* |
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* flag => display the selected language flag in front of the dropdown if set to 1, defaults to 0 |
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* value => the language field to use as value attribute, defaults to 'slug' |
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* selected => the selected value, mandatory |
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* name => the select name attribute, defaults to 'lang_choice' |
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* id => the select id attribute, defaults to $args['name'] |
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* class => the class attribute |
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* disabled => disables the dropdown if set to 1 |
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* |
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* @param array $elements elements to display |
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* @param array $args |
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* @return string |
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*/ |
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function walk($elements, $args = array()) { |
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$output = ''; |
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$args = wp_parse_args($args, array('value' => 'slug', 'name' => 'lang_choice')); |
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|
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if (!empty($args['flag'])) { |
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$current = wp_list_filter($elements, array($args['value'] => $args['selected'])); |
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$lang = reset($current); |
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$output = sprintf( |
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'<span class="pll-select-flag">%s</span>', |
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empty($lang->flag) ? esc_html($lang->slug) : $lang->flag |
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); |
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} |
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|
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$output .= sprintf( |
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'<select name="%1$s" %2$s%3$s%4$s>' . "\n" . '%5$s' . "\n" . '</select>'."\n", |
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$name = esc_attr($args['name']), |
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isset($args['id']) && !$args['id'] ? '' : ' id="' . (empty($args['id']) ? $name : esc_attr($args['id'])) . '"', |
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empty($args['class']) ? '' : ' class="' . esc_attr($args['class']) . '"', |
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empty($args['disabled']) ? '' : ' disabled="disabled"', |
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parent::walk($elements, -1, $args) |
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); |
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|
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return $output; |
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} |
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} |
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|
