ThatGerber/dfp-ads

<?php
/**
 * An Input for DFP Ads
 *
 * Input functions for creating a field/metabox input
 *
 * @link       http://www.chriswgerber.com/dfp-ads
 * @since      0.0.1
 *
 * @package    WordPress
 * @subpackage DFP-Ads
 */
namespace DFP_Ads\Admin;

class Input {

    /**
     * Input Type
     *
     * @since  0.0.1
     * @access public
     *
     * @var string
     */
    public $type;

    /**
     * Input name
     *
     * @since  0.0.1
     * @access public
     *
     * @var string
     */
    public $name;

    /**
     * Input ID
     *
     * @since  0.0.1
     * @access public
     *
     * @var string
     */
    public $id;

    /**
     * Input Label
     *
     * @since  0.0.1
     * @access public
     *
     * @var string
     */
    public $label;

    /**
     * Input value
     *
     * @since  0.0.1
     * @access public
     *
     * @var string|int
     */
    public $value;

    /**
     * Input Validation Callback
     *
     * @since  0.0.1
     * @access public
     *
     * @var string|array Callback method for verification/saving
     */
    public $callback;

    /**
     * PHP5 Constructor
     *
     * @since  0.0.1
     * @access public
     *
     * @param $field array Optional
     */
    public function __construct( $field = null ) {

        if ( $field !== null ) {
            // Set some defaults.
            $this->id    = $this->get_field_value( $field['id'] );
            $this->type  = $this->get_field_value( $field['type'] );
            $this->name  = $this->get_field_value( $field['name'] );
            $this->label = $this->get_field_value( $field['label'] );
            $this->value = $this->get_field_value( $field['value'] );
        }
    }

    /**
     * Creates input field for CPT Meta Box
     *
     * Creates a new input row for a custom field in the CPT Input box. Must be wrapped
     * in a < table > tag.
     *
     * @access public
     * @since 0.0.1
     *
     * returns an HTML input
     */
    public function create_input(){
        global $post;
        ?>
        <tr>
            <td><label for="<?php echo $this->id; ?>" class="dfp-row-title"><?php printf( __( $this->label, 'dfp-ads' ) ); ?></label></td>
            <td align="left">
                <?php
                switch( $this->type ) :
                    // Text Input
                    case 'text' :
                        ?>
                        <input type="<?php echo $this->type; ?>" name="<?php echo $this->name; ?>" id="<?php echo $this->id; ?>" value="<?php $this->field_value($this->value); ?>" size="50" />
                        <?php
                        break;

                    // Text Area
                    case 'textarea' :
                        ?>
                        <textarea name="<?php echo $this->name; ?>" id="<?php echo $this->id; ?>" cols="49" rows="2"><?php echo esc_textarea( $this->get_field_value( $this->value ) ); ?></textarea>
                        <?php
                        break;

                    // Text Area
                    case 'checkbox' :
                        ?>
                        <input type="<?php echo $this->type; ?>" name="<?php echo $this->name; ?>" id="<?php echo $this->id; ?>"<?php checked( $this->value, 1 ); ?> value="1" />
                        <?php
                        break;

                endswitch;
                ?>
            </td>
        </tr>
        <?php
    }

    /**
     * Field Value
     *
     * @since  0.0.1
     * @access public
     *
     * @see    DFP_Ads_Post_Type::get_field_value
     *
     * @param $value
     *
     * Echoes out value.
     */
    public function field_value( $value ) {

        echo $this->get_field_value( $value );
    }

    /**
     * Checks if a value is set before trying to return it.
     *
     * This prevents unnecessary errors from occurring for undefined indices.
     * It's not designed to provided any security.
     *
     * @since  0.0.1
     * @access public
     *
     * @param $value int|string|null
     *
     * @return mixed
     */
    public function get_field_value( $value ) {

        return ( ( isset( $value ) && $value != null ) ? $value : null );
    }

}