werx/forms

<?php

namespace werx\Forms;

/**
 * Class Select
 *
 * @package werx\Forms
 * @method Select style($style) CSS Style Attributes
 * @method Select class($class) CSS Classes to apply
 * @method Select value($value) Default Value
 * @method Select id($id) Element Id
 * @method Select name($name) Element Name
 * @method Select placeholder($value) Placeholder for input
 */
class Select extends Input
{
    protected $data;
    protected $label;
    protected $use_array_values = false;
    protected $multiple = false;

    /**
     * @param $value
     * @return $this
     */
    public function selected($value)
    {
        return $this->value($value);
    }

    /**
     * @param array $data
     * @param bool $use_array_values
     * @return $this
     */
    public function data($data = [], $use_array_values = false)
    {
        $this->data = $data;
        $this->use_array_values = $use_array_values;
        return $this;
    }

    /**
     * @param $display
     * @param string $value
     * @return $this
     */
    public function label($display, $value = '')
    {
        $this->label = (object) array('display' => $display, 'value' => $value);

        return $this;
    }

    public function multiple($multiple = true)
    {
        $this->multiple = $multiple;

        return $this;
    }

    public function __toString()
    {
        $selected = $this->getValue()->getAttribute('value');

        if (is_array($selected)) {
            $this->multiple();
        }

        $attribute_parts = [];

        $html = [];

        foreach ($this->attributes as $k => $v) {
            if ($k == 'value') {
                continue;
            }

            $attribute_parts[] = sprintf('%s="%s"', $k, $v);
        }

        if ($this->multiple) {
            $attribute_parts[] = 'multiple';
        }

        $html[] = sprintf('<select %s>', join(' ', $attribute_parts));
        
        $options = [];

        if (!empty($this->label)) {
            $options[] = sprintf('<option value="%s">%s</option>', $this->label->value, $this->label->display);
        }

        if (empty($this->data)) {
            $this->data = $this->getDefaultData();
        }

        foreach ($this->data as $k => $v) {
            if ($this->use_array_values) {
                // Using the array value as the option value, instead of the array index.
                $k = $v;
            }

            if ((is_array($selected) && in_array($k, $selected)) ||  $k == $selected) {
                $options[] = sprintf('<option selected="selected" value="%s">%s</option>', $this->filter($k), $this->filter($v));
            } else {
                $options[] = sprintf('<option value="%s">%s</option>', $this->filter($k), $this->filter($v));
            }
        }

        $html[] = join('', $options);
        $html[] = '</select>';
        
        return join('', $html);
    }

    /**
     * Overridden in child classes: SelectCounty, SelectState
     * @return array
     */
    protected function getDefaultData()
    {
        return [];
    }
}