File properties/class-papi-property-checkbox.php

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<?php

/**
 * HTML checkbox property that can handle one or
 * more checkboxes.
 */
class Papi_Property_Checkbox extends Papi_Property {

    /**
     * The convert type.
     *
     * @var string
     */
    public $convert_type = 'array';

    /**
     * The default value.
     *
     * @var array
     */
    public $default_value = [];

    /**
     * Format the value of the property before it's returned
     * to WordPress admin or the site.
     *
     * @param  mixed  $value
     * @param  string $slug
     * @param  int    $post_id
     *
     * @return array
     */
    public function format_value( $value, $slug, $post_id ) {
        if ( is_string( $value ) && ! papi_is_empty( $value ) ) {
            return [papi_cast_string_value( $value )];
        }

        if ( ! is_array( $value ) ) {
            return $this->default_value;
        }

        return array_map( 'papi_cast_string_value', $value );
    }

    /**
     * Get default settings.
     *
     * @return array
     */
    public function get_default_settings() {
        return [
            'items'    => [],
            'selected' => []
        ];
    }

    /**
     * Render property html.
     */
    public function html() {
        $settings = $this->get_settings();
        $value    = papi_cast_string_value( $this->get_value() );

        // Override selected setting with
        // database value if not empty.
        if ( ! papi_is_empty( $value ) ) {
            $settings->selected = $value;
        }

        $settings->selected = papi_to_array( $settings->selected );

        echo '<div class="papi-property-checkbox">';

        foreach ( $settings->items as $key => $value ) {
            $key = is_numeric( $key ) ? $value : $key;

            papi_render_html_tag( 'p', [
                papi_html_tag( 'label', [
                    'class' => 'light',
                    'for'   => $this->html_id( $key ),

                    papi_html_tag( 'input', [
                        'id'      => $this->html_id( $key ),
                        'name'    => $this->html_name() . '[]',
                        'type'    => 'hidden'
                    ] ),

                    papi_html_tag( 'input', [
                        'checked' => in_array( $value, $settings->selected ) ? 'checked' : null,
                        'id'      => $this->html_id( $key ),
                        'name'    => $this->html_name() . '[]',
                        'type'    => 'checkbox',
                        'value'   => $value
                    ] ),

                    papi_convert_to_string( $key )
                ] )
            ] );
        }

        echo '</div>';
    }

    /**
     * Import value to the property.
     *
     * @param  mixed  $value
     * @param  string $slug
     * @param  int    $post_id
     *
     * @return mixed
     */
    public function import_value( $value, $slug, $post_id ) {
        if ( is_string( $value ) && ! papi_is_empty( $value ) ) {
            return [$value];
        }

        if ( ! is_array( $value ) ) {
            return;
        }

        return $value;
    }
}

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