input instanceof FormInputWithOptionsBase) { throw new Exception( __('Cannot use Select Display Strategy with an input that doesn\'t have options', 'print-my-blog') ); } $html_generator = Html::instance(); $html = $html_generator->nl(0, 'select'); $html .= 'attributesString( $this->standardAttributesArray() ); $html .= '>'; if (Array2::isMultiDimensionalArray($this->input->options())) { $html_generator->indent(1, 'optgroup'); foreach ($this->input->options() as $opt_group_label => $opt_group) { if (! empty($opt_group_label)) { $html .= $html_generator->nl(0, 'optgroup') . ''; } $html_generator->indent(1, 'option'); $html .= $this->displayOptions($opt_group); $html_generator->indent(-1, 'option'); if (! empty($opt_group_label)) { $html .= $html_generator->nl(0, 'optgroup') . ''; } } $html_generator->indent(-1, 'optgroup'); } else { $html .= $this->displayOptions($this->input->options()); } $html .= $html_generator->nl(0, 'select') . ''; return $html; } /** * Displays a flat list of options as option tags * @param InputOption[] $options * @return string */ protected function displayOptions($options) { $html = ''; $html_generator = Html::instance(); $html_generator->indent(1, 'option'); foreach ($options as $value => $option) { // even if this input uses TextNormalization if one of the array keys is a numeric string, like "123", // PHP will have converted it to a PHP integer (eg 123). So we need to make sure it's a string $unnormalized_value = $this->input->getNormalizationStrategy()->unnormalizeOne($value); $selected = $this->checkIfOptionSelected($unnormalized_value) ? ' selected="selected"' : ''; $html .= $html_generator->nl(0, 'option') . '' . $option->getDisplayText() . ''; } $html_generator->indent(-1, 'option'); return $html; } /** * Checks if that value is the one selected * * @param string|int $option_value unnormalized value option (string). How it will appear in the HTML. * @return string */ protected function checkIfOptionSelected($option_value) { return $option_value === $this->input->rawValue(); } }