<?php
/**
 * Tax Meta Class
 *
 * The Tax Meta Class is used by including it in your plugin r theme files and using its methods to
 * Add meta fields for WordPress Taxonomies (categories,tags and custom taxonomies). It is meant to be very simple and
 * straightforward.
 *
 * This class is derived from My-Meta-Box (https://github.com/bainternet/My-Meta-Box script) which is
 * a class for creating custom meta boxes for WordPress.
 *
 * @version    2.1.0
 * @copyright  2012-2015 Ohad Raz
 * @author     Ohad Raz (email: admin@bainternet.info)
 * @link       http://en.bainternet.info
 *
 * @license    GNU General Public LIcense v3.0 - license.txt
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package    Tax Meta Class
 * @deprecated replace_insert_to_post_text() @since 1.8.3
 *
 */

if ( !class_exists( 'Tax_Meta_Class' ) ) :

	/*
	 * All Types Meta Box class.
	 *
	 * @package All Types Meta Box
	 * @since   1.0
	 *
	 * @todo    Nothing.
	 */
	class Tax_Meta_Class {

		/*
		 * Holds meta box object
		 *
		 * @var object
		 * @access protected
		 */
		protected $_meta_box;

		/*
		 * Holds meta box fields.
		 *
		 * @var array
		 * @access protected
		 */
		protected $_prefix;

		/*
		 * Holds Prefix for meta box fields.
		 *
		 * @var array
		 * @access protected
		 */
		protected $_fields;

		/*
		 * Use local images.
		 *
		 * @var bool
		 * @access protected
		 */
		protected $_Local_images;

		/*
		 * What form is this? edit or new term.
		 *
		 * @var string
		 * @access protected
		 * $since 1.0
		 */
		protected $_form_type;
		/*
		 * SelfPath to allow themes as well as plugins.
		 *
		 * @var string
		 * @access protected
		 * $since 1.0
		 */
		protected $SelfPath;

		/*
		 * Constructor
		 *
		 * @since  1.0
		 * @access public
		 *
		 * @param array $meta_box
		 */
		public function __construct( $meta_box ) {

			// If we are not in admin area exit.
			if ( !is_admin() )
				return;

			// Assign meta box values to local variables and add it's missed values.
			$this->_meta_box     = $meta_box;
			$this->_prefix       = ( isset( $meta_box['prefix'] ) ) ? $meta_box['prefix'] : '';
			$this->_fields       = $this->_meta_box['fields'];
			$this->_Local_images = ( isset( $meta_box['local_images'] ) ) ? true : false;
			$this->add_missed_values();
			if ( isset( $meta_box['use_with_theme'] ) ) {
				if ( $meta_box['use_with_theme'] === true ) {
					$this->SelfPath = get_template_directory_uri() . '/Tax-meta-class';
				} elseif ( $meta_box['use_with_theme'] === false ) {
					$this->SelfPath = plugins_url( 'Tax-meta-class', plugin_basename( dirname( __FILE__ ) ) );
				} else {
					$this->SelfPath = $meta_box['use_with_theme'];
				}
			} else {
				$this->SelfPath = plugins_url( 'Tax-meta-class', plugin_basename( dirname( __FILE__ ) ) );
			}


			// Add Actions
			add_action( 'admin_init', array( $this, 'add' ) );

			// Load common js, css files
			// Must enqueue for all pages as we need js for the media upload, too.
			add_action( 'admin_print_styles', array( $this, 'load_scripts_styles' ) );

			//overwrite insert into post button

			//delete term meta on term deletion
			add_action( 'delete_term', array( $this, 'delete_taxonomy_metadata' ), 10, 2 );
		}

		/*
		 * Load all Javascript and CSS
		 *
		 * @since  1.0
		 * @access public
		 */
		public function load_scripts_styles() {

			// Get Plugin Path
			$plugin_path = $this->SelfPath;
			//only load styles and js when needed
			/*
     * since 1.0
     */
			$taxnow = isset( $_REQUEST['taxonomy'] ) ? $_REQUEST['taxonomy'] : '';
			if ( in_array( $taxnow, $this->_meta_box['pages'] ) ) {
				// Check for special fields and add needed actions for them.
				$this->check_field_upload();
				$this->check_field_color();
				$this->check_field_date();
				$this->check_field_time();
				// Enqueue Meta Box Style
				wp_enqueue_style( 'tax-meta-clss', $plugin_path . '/css/Tax-meta-class.css' );
				// Enqueue Meta Box Scripts
				wp_enqueue_script( 'tax-meta-clss', $plugin_path . '/js/tax-meta-clss.js', array( 'jquery' ), null, true );

			}

		}

		/*
		 * Check the Field Upload, Add needed Actions
		 *
		 * @since  1.0
		 * @access public
		 */
		public function check_field_upload() {

			// Check if the field is an image or file. If not, return.
			if ( !$this->has_field( 'image' ) && !$this->has_field( 'file' ) )
				return;

			// Make upload feature work event when custom post type doesn't support 'editor'
			wp_enqueue_script( 'jquery-ui-core' );
			wp_enqueue_script( 'jquery-ui-sortable' );
		}

		/*
		 * Check Field Color
		 *
		 * @since  1.0
		 * @access public
		 */
		public function check_field_color() {

			if ( $this->has_field( 'color' ) && $this->is_edit_page() ) {
				// Enqueu built-in script and style for color picker.
				wp_enqueue_style( 'wp-color-picker' );
				wp_enqueue_script( 'wp-color-picker' );
			}

		}

		/*
		 * Check Field Date
		 *
		 * @since  1.0
		 * @access public
		 */
		public function check_field_date() {

			if ( $this->has_field( 'date' ) && $this->is_edit_page() ) {
				// Enqueu JQuery UI, use proper version.
				$this->enqueue_jqueryui();
			}

		}

		/*
		 * Check Field Time
		 *
		 * @since  1.0
		 * @access public
		 */
		public function check_field_time() {

			if ( $this->has_field( 'time' ) && $this->is_edit_page() ) {

				// Enqueu JQuery UI, use proper version.
				$this->enqueue_jqueryui();
				wp_enqueue_script( 'at-timepicker', '//cdnjs.cloudflare.com/ajax/libs/jquery-ui-timepicker-addon/1.4.5/jquery-ui-timepicker-addon.min.js', array( 'tmc-jquery-ui' ), false, true );
			}
		}

		/*
		 * Add Meta Box for multiple post types.
		 *
		 * @since  1.0
		 * @access public
		 */
		public function add() {

			// Loop through array
			foreach ( $this->_meta_box['pages'] as $page ) {
				//add fields to edit form
				add_action( $page . '_edit_form_fields', array( $this, 'show_edit_form' ) );
				//add fields to add new form
				add_action( $page . '_add_form_fields', array( $this, 'show_new_form' ) );
				// this saves the edit fields
				add_action( 'edited_' . $page, array( $this, 'save' ), 10, 2 );
				// this saves the add fields
				add_action( 'created_' . $page, array( $this, 'save' ), 10, 2 );
			}
			// Delete all attachments when delete custom post type.
			add_action( 'wp_ajax_at_delete_file', array( $this, 'delete_file' ) );
			add_action( 'wp_ajax_at_reorder_images', array( $this, 'reorder_images' ) );
			// Delete file via Ajax
			add_action( 'wp_ajax_at_delete_mupload', array( $this, 'wp_ajax_delete_image' ) );

		}

		/*
		 * Callback function to show fields on add new taxonomy term form.
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_new_form( $term_id ) {
			$this->_form_type = 'new';
			add_action( 'admin_footer', array( $this, 'footer_js' ) );
			$this->show( $term_id );
		}

		/*
		 * Callback function to show fields on term edit form.
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_edit_form( $term_id ) {
			$this->_form_type = 'edit';
			$this->show( $term_id );
		}


		/*
		 * Callback function to show fields in meta box.
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show( $term_id ) {
			$term_id = is_object( $term_id ) ? $term_id->term_id : $term_id;
			wp_nonce_field( basename( __FILE__ ), 'tax_meta_class_nonce' );

			foreach ( $this->_fields as $field ) {
				$multiple = isset( $field['multiple'] ) ? $field['multiple'] : false;
				$name     = $field['id'];
				//wordpress 4.4 term meta support
				if ( function_exists( 'get_term_meta' ) ) {
					$meta = get_term_meta( $term_id, $name, !$multiple );
				} else {
					$meta = $this->get_tax_meta( $term_id, $name, !$multiple );
				}
				$meta = ( $meta !== '' ) ? $meta : ( isset( $field['std'] ) ? $field['std'] : '' );
				if ( 'image' != $field['type'] && $field['type'] != 'repeater' )
					$meta = is_array( $meta ) ? array_map( 'esc_attr', $meta ) : esc_attr( $meta );

				echo '<tr class="form-field">';
				// Call Separated methods for displaying each type of field.
				call_user_func( array( $this, 'show_field_' . $field['type'] ), $field, is_array( $meta ) ? $meta : stripslashes( $meta ) );
				echo '</tr>';
			}
			echo '</table>';
		}

		/*
		 * Show Repeater Fields.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_repeater( $field, $meta ) {
			// Get Plugin Path
			$plugin_path = $this->SelfPath;
			$this->show_field_begin( $field, $meta );
			echo "<div class='at-repeat' id='{$field['id']}'>";

			$c = 0;

			if ( count( $meta ) > 0 && is_array( $meta ) ) {
				foreach ( $meta as $me ) {
					//for labling toggles
					$mmm = isset( $me[$field['fields'][0]['id']] ) ? $me[$field['fields'][0]['id']] : "";
					echo '<div class="at-repater-block">' . $mmm . '<br/><table class="repeater-table" style="display: none;">';
					if ( $field['inline'] ) {
						echo '<tr class="at-inline" VALIGN="top">';
					}
					foreach ( $field['fields'] as $f ) {
						//reset var $id for repeater
						$id = '';
						$id = $field['id'] . '[' . $c . '][' . $f['id'] . ']';
						$m  = isset( $me[$f['id']] ) ? $me[$f['id']] : '';
						$m  = ( $m !== '' ) ? $m : $f['std'];
						if ( 'image' != $f['type'] && $f['type'] != 'repeater' )
							$m = is_array( $m ) ? array_map( 'esc_attr', $m ) : esc_attr( $m );

						//set new id for field in array format
						$f['id'] = $id;
						if ( !$field['inline'] ) {
							echo '<tr>';
						}
						if ( $f['type'] == 'wysiwyg' )
							call_user_func( array( $this, 'show_field_' . $f['type'] ), $f, is_array( $m ) ? $m : stripslashes( $m ), true );
						else
							call_user_func( array( $this, 'show_field_' . $f['type'] ), $f, is_array( $m ) ? $m : stripslashes( $m ) );

						if ( !$field['inline'] ) {
							echo '</tr>';
						}
					}
					if ( $field['inline'] ) {
						echo '</tr>';
					}
					echo '</table>
        <span class="at-re-toggle"><img src="';
					if ( $this->_Local_images ) {
						echo $plugin_path . '/images/edit.png';
					} else {
						echo 'http://i.imgur.com/ka0E2.png';
					}
					echo '" alt="Edit" title="Edit"/></span>
        <img src="';
					if ( $this->_Local_images ) {
						echo $plugin_path . '/images/remove.png';
					} else {
						echo 'http://i.imgur.com/g8Duj.png';
					}
					echo '" alt="' . __( 'Remove', 'course-builder' ) . '" title="' . __( 'Remove', 'course-builder' ) . '" id="remove-' . $field['id'] . '"></div>';
					$c = $c + 1;

				}
				$this->show_field_end( $field, $meta );
			}

			echo '<img src="';
			if ( $this->_Local_images ) {
				echo $plugin_path . '/images/add.png';
			} else {
				echo 'http://i.imgur.com/w5Tuc.png';
			}
			echo '" alt="' . __( 'Add', 'course-builder' ) . '" title="' . __( 'Add', 'course-builder' ) . '" id="add-' . $field['id'] . '"><br/></div>';

			//create all fields once more for js function and catch with object buffer
			ob_start();
			echo '<div class="at-repater-block"><table class="repeater-table">';
			if ( $field['inline'] ) {
				echo '<tr class="at-inline" VALIGN="top">';
			}
			foreach ( $field['fields'] as $f ) {
				//reset var $id for repeater
				$id      = '';
				$id      = $field['id'] . '[CurrentCounter][' . $f['id'] . ']';
				$f['id'] = $id;
				if ( !$field['inline'] ) {
					echo '<tr>';
				}
				if ( $f['type'] == 'wysiwyg' )
					call_user_func( array( $this, 'show_field_' . $f['type'] ), $f, '', true );
				else
					call_user_func( array( $this, 'show_field_' . $f['type'] ), $f, '' );

				if ( !$field['inline'] ) {
					echo '</tr>';
				}
			}
			if ( $field['inline'] ) {
				echo '</tr>';
			}
			echo '</table><img src="';
			if ( $this->_Local_images ) {
				echo $plugin_path . '/images/remove.png';
			} else {
				echo 'http://i.imgur.com/g8Duj.png';
			}
			echo '" alt="' . __( 'Remove', 'course-builder' ) . '" title="' . __( 'Remove', 'course-builder' ) . '" id="remove-' . $field['id'] . '"></div>';
			$counter = 'countadd_' . $field['id'];
			$js_code = ob_get_clean();
			$js_code = str_replace( "\n", "", $js_code );
			$js_code = str_replace( "\r", "", $js_code );
			$js_code = str_replace( "'", "\"", $js_code );
			$js_code = str_replace( "CurrentCounter", "' + " . $counter . " + '", $js_code );
			echo '<script>
        jQuery(document).ready(function() {
          var ' . $counter . ' = ' . $c . ';
          jQuery("#add-' . $field['id'] . '").live(\'click\', function() {
            ' . $counter . ' = ' . $counter . ' + 1;
            jQuery(this).before(\'' . $js_code . '\');
            update_repeater_fields();
          });
              jQuery("#remove-' . $field['id'] . '").live(\'click\', function() {
                  jQuery(this).parent().remove();
              });
          });
        </script>';
			echo '<br/><style>
.at-inline{line-height: 1 !important;}
.at-inline .at-field{border: 0px !important;}
.at-inline .at-label{margin: 0 0 1px !important;}
.at-inline .at-text{width: 70px;}
.at-inline .at-textarea{width: 100px; height: 75px;}
.at-repater-block{background-color: #FFFFFF;border: 1px solid;margin: 2px;}
</style>';
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Begin Field.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_begin( $field, $meta ) {
			if ( isset( $field['group'] ) ) {
				if ( $field['group'] == "start" ) {
					echo "<td class='at-field'>";
				}
			} else {
				if ( $this->_form_type == 'edit' ) {
					echo '<th valign="top" scope="row">';
				} else {
					echo '<td><div class="form-field">';
				}
			}
			if ( $field['name'] != '' || $field['name'] != FALSE ) {
				//echo "<div class='at-label'>";
				echo "<label for='{$field['id']}'>{$field['name']}</label>";
				//echo "</div>";
			}
			if ( $this->_form_type == 'edit' ) {
				echo '</th><td>';
			}
		}

		/*
		 * End Field.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_end( $field, $meta = NULL, $group = false ) {
			if ( isset( $field['group'] ) ) {
				if ( $group == 'end' ) {
					if ( isset( $field['desc'] ) && $field['desc'] != '' ) {
						echo "<p class='description'>{$field['desc']}</p></td>";
					} else {
						echo "</td>";
					}
				} else {
					if ( isset( $field['desc'] ) && $field['desc'] != '' ) {
						echo "<p class='description'>{$field['desc']}</p><br/>";
					} else {
						echo '<br/>';
					}
				}
			} else {
				if ( isset( $field['desc'] ) && $field['desc'] != '' ) {
					echo "<p class='description'>{$field['desc']}</p>";
				}
				if ( $this->_form_type == 'edit' ) {
					echo '</td>';
				} else {
					echo '</td></div>';
				}
			}
		}

		/*
		 * Show Field Text.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_text( $field, $meta ) {
			$this->show_field_begin( $field, $meta );
			echo "<input type='text' class='at-text' name='{$field['id']}' id='{$field['id']}' value='{$meta}' style='{$field['style']}' size='30' />";
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Field hidden.
		 *
		 * @param string       $field
		 * @param string|mixed $meta
		 *
		 * @since  0.1.3
		 * @access public
		 */
		public function show_field_hidden( $field, $meta ) {
			//$this->show_field_begin( $field, $meta );
			echo "<input type='hidden' class='at-text' name='{$field['id']}' id='{$field['id']}' value='{$meta}'/>";
			//$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Field Paragraph.
		 *
		 * @param string $field
		 *
		 * @since  0.1.3
		 * @access public
		 */
		public function show_field_paragraph( $field ) {
			//$this->show_field_begin( $field, $meta );
			echo "<p style='{$field['style']}'>" . $field['value'] . "</p>";
			//$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Field Textarea.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_textarea( $field, $meta ) {
			$this->show_field_begin( $field, $meta );
			echo "<textarea class='at-textarea large-text' style='{$field['style']}' name='{$field['id']}' id='{$field['id']}' cols='60' rows='10'>{$meta}</textarea>";
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Field Select.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_select( $field, $meta ) {

			if ( !is_array( $meta ) )
				$meta = (array) $meta;

			$this->show_field_begin( $field, $meta );
			echo "<select class='at-select' style='{$field['style']}' name='{$field['id']}" . ( $field['multiple'] ? "[]' id='{$field['id']}' multiple='multiple'" : "'" ) . ">";
			foreach ( $field['options'] as $key => $value ) {
				echo "<option value='{$key}'" . selected( in_array( $key, $meta ), true, false ) . ">{$value}</option>";
			}
			echo "</select>";
			$this->show_field_end( $field, $meta );

		}

		/*
		 * Show Radio Field.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_radio( $field, $meta ) {

			if ( !is_array( $meta ) )
				$meta = (array) $meta;

			$this->show_field_begin( $field, $meta );
			foreach ( $field['options'] as $key => $value ) {
				echo "<input style='{$field['style']}' type='radio' class='at-radio' name='{$field['id']}' value='{$key}'" . checked( in_array( $key, $meta ), true, false ) . " /> <span class='at-radio-label'>{$value}</span>";
			}
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Checkbox Field.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_checkbox( $field, $meta ) {

			$this->show_field_begin( $field, $meta );
			echo "<input type='checkbox' style='{$field['style']}' class='rw-checkbox' name='{$field['id']}' id='{$field['id']}'" . checked( !empty( $meta ), true, false ) . " />";
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Wysiwig Field.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_wysiwyg( $field, $meta, $in_repeater = false ) {
			$this->show_field_begin( $field, $meta );
			// Add TinyMCE script for WP version < 3.3
			global $wp_version;

			if ( version_compare( $wp_version, '3.2.1' ) < 1 || $in_repeater ) {
				echo "<textarea style='{$field['style']}' class='at-wysiwyg theEditor large-text' name='{$field['id']}' id='{$field['id']}' cols='60' rows='10'>{$meta}</textarea>";
			} else {
				// Use new wp_editor() since WP 3.3
				wp_editor( stripslashes( html_entity_decode( $meta ) ), $field['id'], array( 'editor_class' => 'at-wysiwyg' ) );
			}
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show File Field.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_file( $field, $meta ) {
			$this->show_field_begin( $field, $meta );
			wp_enqueue_script( 'jquery-ui-sortable' );
			wp_enqueue_media();
			$std      = isset( $field['std'] ) ? $field['std'] : array( 'id' => '', 'url' => '' );
			$multiple = isset( $field['multiple'] ) ? $field['multiple'] : false;
			$multiple = ( $multiple ) ? "multiFile '" : "";
			$name     = esc_attr( $field['id'] );
			$value    = isset( $meta['id'] ) ? $meta : $std;
			$has_file = ( empty( $value['url'] ) ) ? false : true;
			$type     = isset( $field['mime_type'] ) ? $field['mime_type'] : '';
			$ext      = isset( $field['ext'] ) ? $field['ext'] : '';
			$type     = ( is_array( $type ) ? implode( "|", $type ) : $type );
			$ext      = ( is_array( $ext ) ? implode( "|", $ext ) : $ext );
			$id       = $field['id'];
			$li       = ( $has_file ) ? "<li><a href='{$value['url']}' target='_blank'>{$value['url']}</a></li>" : "";

			echo "<span class='simplePanelfilePreview'><ul>{$li}</ul></span>";
			echo "<input type='hidden' name='{$name}[id]' value='{$value['id']}'/>";
			echo "<input type='hidden' name='{$name}[url]' value='{$value['url']}'/>";
			if ( $has_file )
				echo "<input type='button' class='{$multiple} button simplePanelfileUploadclear' id='{$id}' value='Remove File' data-mime_type='{$type}' data-ext='{$ext}'/>";
			else
				echo "<input type='button' class='{$multiple} button simplePanelfileUpload' id='{$id}' value='Upload File' data-mime_type='{$type}' data-ext='{$ext}'/>";
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Image Field.
		 *
		 * @param array $field
		 * @param array $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_image( $field, $meta ) {
			$this->show_field_begin( $field, $meta );
			wp_enqueue_script( 'jquery-ui-sortable' );
			wp_enqueue_media();
            $std   = ( isset( $field['std'] ) && $field['std'] != '' ) ? $field['std'] : array( 'id' => '', 'url' => '' );
			$name  = esc_attr( $field['id'] );
            $value = ( isset( $meta['id'] ) && $meta['id'] != '' ) ? $meta : $std;
			//backwords capability
			if ( !isset( $value['url'] ) )
				$value['url'] = '';
			if ( !isset( $value['id'] ) )
				$value['id'] = '';
			$value['url'] = isset( $value['src'] ) ? $value['src'] : $value['url'];
			$has_image    = empty( $value['url'] ) ? false : true;
			$w            = isset( $field['width'] ) ? $field['width'] : 'auto';
			$h            = isset( $field['height'] ) ? $field['height'] : 'auto';
			$PreviewStyle = "style='width: $w; height: $h;" . ( ( !$has_image ) ? "display: none;'" : "'" );
			$id           = $field['id'];
			$multiple     = isset( $field['multiple'] ) ? $field['multiple'] : false;
			$multiple     = ( $multiple ) ? "multiFile " : "";

			echo "<span class='simplePanelImagePreview'><img {$PreviewStyle} src='{$value['url']}'><br/></span>";
			echo "<input type='hidden' name='{$name}[id]' value='{$value['id']}'/>";
			echo "<input type='hidden' name='{$name}[url]' value='{$value['url']}'/>";
			if ( $has_image )
				echo "<input class='{$multiple} button  simplePanelimageUploadclear' id='{$id}' value='" . __( 'Remove Image', 'course-builder' ) . "' type='button'/>";
			else
				echo "<input class='{$multiple} button simplePanelimageUpload' id='{$id}' value='" . __( 'Upload Image', 'course-builder' ) . "' type='button'/>";
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Color Field.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_color( $field, $meta ) {

			if ( empty( $meta ) )
				$meta = '#';

			$this->show_field_begin( $field, $meta );
			echo '<input class="at-color" type="text" name="' . $field['id'] . '" value="' . esc_attr( $meta ) . '"/>';
			$this->show_field_end( $field, $meta );

		}

		/*
		 * Show Checkbox List Field
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_checkbox_list( $field, $meta ) {

			if ( !is_array( $meta ) )
				$meta = (array) $meta;

			$this->show_field_begin( $field, $meta );

			$html = array();

			foreach ( $field['options'] as $key => $value ) {
				$html[] = "<input style='{$field['style']}' type='checkbox' class='at-checkbox_list' name='{$field['id']}[]' value='{$key}'" . checked( in_array( $key, $meta ), true, false ) . " /> {$value}";
			}

			echo implode( '<br />', $html );

			$this->show_field_end( $field, $meta );

		}

		/*
		 * Show Date Field.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_date( $field, $meta ) {
			$this->show_field_begin( $field, $meta );
			echo "<input style='{$field['style']}' type='text' class='at-date' name='{$field['id']}' id='{$field['id']}' rel='{$field['format']}' value='{$meta}' size='30' />";
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show time field.
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_time( $field, $meta ) {
			$this->show_field_begin( $field, $meta );
			echo "<input style='{$field['style']}' type='text' class='at-time' name='{$field['id']}' id='{$field['id']}' rel='{$field['format']}' value='{$meta}' size='30' />";
			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Posts field.
		 * used creating a posts/pages/custom types checkboxlist or a select dropdown
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 */
		public function show_field_posts( $field, $meta ) {
			global $post;

			if ( !is_array( $meta ) ) $meta = (array) $meta;
			$this->show_field_begin( $field, $meta );
			$options = $field['options'];
			$posts   = get_posts( $options['args'] );

			// checkbox_list
			if ( 'checkbox_list' == $options['type'] ) {
				foreach ( $posts as $p ) {
					echo "<input type='checkbox' name='{$field['id']}[]' value='$p->ID'" . checked( in_array( $p->ID, $meta ), true, false ) . " /> $p->post_title<br/>";
				}
			} // select
			else {
				echo "<select name='{$field['id']}" . ( $field['multiple'] ? "[]' multiple='multiple' style='height:auto'" : "'" ) . ">";
				foreach ( $posts as $p ) {
					echo "<option value='$p->ID'" . selected( in_array( $p->ID, $meta ), true, false ) . ">$p->post_title</option>";
				}
				echo "</select>";
			}

			$this->show_field_end( $field, $meta );
		}

		/*
		 * Show Taxonomy field.
		 * used creating a category/tags/custom taxonomy checkboxlist or a select dropdown
		 *
		 * @param string $field
		 * @param string $meta
		 *
		 * @since  1.0
		 * @access public
		 *
		 * @uses   get_terms()
		 */
		public function show_field_taxonomy( $field, $meta ) {
			global $post;

			if ( !is_array( $meta ) ) $meta = (array) $meta;
			$this->show_field_begin( $field, $meta );
			$options = $field['options'];
			$terms   = get_terms( $options['taxonomy'], $options['args'] );

			// checkbox_list
			if ( 'checkbox_list' == $options['type'] ) {
				foreach ( $terms as $term ) {
					echo "<input type='checkbox' name='{$field['id']}[]' value='$term->slug'" . checked( in_array( $term->slug, $meta ), true, false ) . " /> $term->name<br/>";
				}
			} // select
			else {
				echo "<select name='{$field['id']}" . ( $field['multiple'] ? "[]' multiple='multiple' style='height:auto'" : "'" ) . ">";
				foreach ( $terms as $term ) {
					echo "<option value='$term->slug'" . selected( in_array( $term->slug, $meta ), true, false ) . ">$term->name</option>";
				}
				echo "</select>";
			}

			$this->show_field_end( $field, $meta );
		}

		/*
		 * Save Data from Metabox
		 *
		 * @param string $term_id
		 *
		 * @since  1.0
		 * @access public
		 */
		public function save( $term_id ) {

			// check if the we are coming from quick edit issue #38 props to Nicola Peluchetti.
			if ( isset( $_REQUEST['action'] ) && $_REQUEST['action'] == 'inline-save-tax' ) {
				return $term_id;
			}

			if ( !isset( $term_id )                            // Check Revision
				|| ( !isset( $_POST['taxonomy'] ) )              // Check if current taxonomy type is set.
				|| ( !in_array( $_POST['taxonomy'], $this->_meta_box['pages'] ) )              // Check if current taxonomy type is supported.
				|| ( !check_admin_referer( basename( __FILE__ ), 'tax_meta_class_nonce' ) )    // Check nonce - Security
				|| ( !current_user_can( 'manage_categories' ) )
			)                 // Check permission
			{
				return $term_id;
			}

			foreach ( $this->_fields as $field ) {

				$name     = $field['id'];
				$type     = $field['type'];
				$multiple = isset( $field['multiple'] ) ? $field['multiple'] : false;
				//wordpress 4.4 term meta support
				if ( function_exists( 'get_term_meta' ) ) {
					$old = get_term_meta( $term_id, $name, !$multiple );
				} else {
					$old = $this->get_tax_meta( $term_id, $name, !$multiple );
				}
				$new = ( isset( $_POST[$name] ) ) ? $_POST[$name] : ( ( $multiple ) ? array() : '' );


				// Validate meta value
				if ( class_exists( 'Tax_Meta_Validate' ) && method_exists( 'Tax_Meta_Validate', $field['validate_func'] ) ) {
					$new = call_user_func( array( 'Tax_Meta_Validate', $field['validate_func'] ), $new );
				}

				//skip on Paragraph field
				if ( $type != "paragraph" ) {

					// Call defined method to save meta value, if there's no methods, call common one.
					$save_func = 'save_field_' . $type;
					if ( method_exists( $this, $save_func ) ) {
						call_user_func( array( $this, 'save_field_' . $type ), $term_id, $field, $old, $new );
					} else {
						$this->save_field( $term_id, $field, $old, $new );
					}
				}

			} // End foreach
		}

		/*
		 * Common function for saving fields.
		 *
		 * @param string       $term_id
		 * @param string       $field
		 * @param string       $old
		 * @param string|mixed $new
		 *
		 * @since  1.0
		 * @access public
		 */
		public function save_field( $term_id, $field, $old, $new ) {
			$name = $field['id'];
			//wordpress 4.4 term meta support
			if ( function_exists( 'get_term_meta' ) ) {
				delete_term_meta( $term_id, $name );
			} else {
				$this->delete_tax_meta( $term_id, $name );
			}
			if ( $new === '' || $new === array() )
				return;

			if ( function_exists( 'update_term_meta' ) ) {
				update_term_meta( $term_id, $name, $new );
			} else {
				$this->update_tax_meta( $term_id, $name, $new );
			}
		}

		/*
		 * function for saving image field.
		 *
		 * @param string       $term_id
		 * @param string       $field
		 * @param string       $old
		 * @param string|mixed $new
		 *
		 * @since  1.0
		 * @access public
		 */
		public function save_field_image( $term_id, $field, $old, $new ) {
			$name = $field['id'];
			if ( function_exists( 'delete_term_meta' ) ) {
				delete_term_meta( $term_id, $name );
			} else {
				$this->delete_tax_meta( $term_id, $name );
			}

			if ( $new === '' || $new === array() || $new['id'] == '' || $new['url'] == '' )
				return;

			if ( function_exists( 'update_term_meta' ) ) {
				update_term_meta( $term_id, $name, $new );
			} else {
				$this->update_tax_meta( $term_id, $name, $new );
			}
		}

		/*
   * Save Wysiwyg Field.
   *
   * @param string $term_id
   * @param string $field
   * @param string $old
   * @param string $new
   * @since 1.0
   * @access public
   */
		public function save_field_wysiwyg( $term_id, $field, $old, $new ) {
			$this->save_field( $term_id, $field, $old, $new );
		}

		/*
		 * Save repeater Fields.
		 *
		 * @param string       $term_id
		 * @param string       $field
		 * @param string|mixed $old
		 * @param string|mixed $new
		 *
		 * @since  1.0
		 * @access public
		 */
		public function save_field_repeater( $term_id, $field, $old, $new ) {
			if ( is_array( $new ) && count( $new ) > 0 ) {
				foreach ( $new as $n ) {
					foreach ( $field['fields'] as $f ) {
						$type = $f['type'];
						switch ( $type ) {
							case 'wysiwyg':
								$n[$f['id']] = wpautop( $n[$f['id']] );
								break;
							case 'file':
								$n[$f['id']] = $this->save_field_file_repeater( $term_id, $f, '', $n[$f['id']] );
								break;
							default:
								break;
						}
					}
					if ( !$this->is_array_empty( $n ) )
						$temp[] = $n;
				}
				if ( isset( $temp ) && count( $temp ) > 0 && !$this->is_array_empty( $temp ) ) {
					if ( function_exists( 'update_term_meta' ) ) {
						update_term_meta( $term_id, $field['id'], $temp );
					} else {
						$this->update_tax_meta( $term_id, $field['id'], $temp );
					}
				} else {
					//  remove old meta if exists
					if ( function_exists( 'delete_term_meta' ) ) {
						delete_term_meta( $term_id, $field['id'] );
					} else {
						$this->delete_tax_meta( $term_id, $field['id'] );
					}
				}
			} else {
				//  remove old meta if exists
				if ( function_exists( 'delete_term_meta' ) ) {
					delete_term_meta( $term_id, $field['id'] );
				} else {
					$this->delete_tax_meta( $term_id, $field['id'] );
				}
			}
		}

		/*
		 * Save File Field.
		 *
		 * @param string $term_id
		 * @param string $field
		 * @param string $old
		 * @param string $new
		 *
		 * @since  1.0
		 * @access public
		 */
		public function save_field_file( $term_id, $field, $old, $new ) {

			$name = $field['id'];
			if ( function_exists( 'delete_term_meta' ) ) {
				delete_term_meta( $term_id, $name );
			} else {
				$this->delete_tax_meta( $term_id, $name );
			}
			if ( $new === '' || $new === array() || $new['id'] == '' || $new['url'] == '' )
				return;

			if ( function_exists( 'update_term_meta' ) ) {
				update_term_meta( $term_id, $name, $new );
			} else {
				$this->update_tax_meta( $term_id, $name, $new );
			}
		}


		/*
		 * Add missed values for meta box.
		 *
		 * @since  1.0
		 * @access public
		 */
		public function add_missed_values() {

			// Default values for meta box
			$this->_meta_box = array_merge( array( 'context' => 'normal', 'priority' => 'high', 'pages' => array( 'post' ) ), (array) $this->_meta_box );

			// Default values for fields
			foreach ( (array) $this->_fields as $field ) {

				$multiple = in_array( $field['type'], array( 'checkbox_list', 'file', 'image' ) );
				$std      = $multiple ? array() : '';
				$format   = 'date' == $field['type'] ? 'yy-mm-dd' : ( 'time' == $field['type'] ? 'hh:mm' : '' );

				$field = array_merge( array( 'multiple' => $multiple, 'std' => $std, 'desc' => '', 'format' => $format, 'validate_func' => '' ), $field );

			} // End foreach

		}

		/*
		 * Check if field with $type exists.
		 *
		 * @param string $type
		 *
		 * @since  1.0
		 * @access public
		 */
		public function has_field( $type ) {
			foreach ( $this->_fields as $field ) {
				if ( $type == $field['type'] )
					return true;
				elseif ( 'repeater' == $field['type'] ) {
					foreach ( (array) $field["fields"] as $repeater_field ) {
						if ( $type == $repeater_field["type"] ) return true;
					}
				}
			}
			return false;
		}

		/*
		 * Check if current page is edit page.
		 *
		 * @since  1.0
		 * @access public
		 */
		public function is_edit_page() {
			global $pagenow;
			return ( $pagenow == 'edit-tags.php' || $pagenow = 'term.php' );
		}

		/*
		 * Fixes the odd indexing of multiple file uploads.
		 *
		 * Goes from the format:
		 * $_FILES['field']['key']['index']
		 * to
		 * The More standard and appropriate:
		 * $_FILES['field']['index']['key']
		 *
		 * @param string $files
		 *
		 * @since  1.0
		 * @access public
		 */
		public function fix_file_array( &$files ) {

			$output = array();

			foreach ( $files as $key => $list ) {
				foreach ( $list as $index => $value ) {
					$output[$index][$key] = $value;
				}
			}

			return $files = $output;

		}

		/*
		 * Get proper JQuery UI version.
		 *
		 * Used in order to not conflict with WP Admin Scripts.
		 *
		 * @since  1.0
		 * @access public
		 */
		public function get_jqueryui_ver() {

			global $wp_version;

			if ( version_compare( $wp_version, '4.0', '>=' ) ) {
				return '1.11.2';
			}
			if ( version_compare( $wp_version, '3.9', '>=' ) ) {
				return '1.10.4';
			}
			if ( version_compare( $wp_version, '3.8', '>=' ) ) {
				return '1.10.3';
			}
			if ( version_compare( $wp_version, '3.5', '>=' ) ) {
				return '1.9.2';
			}
			if ( version_compare( $wp_version, '3.1', '>=' ) ) {
				return '1.8.10';
			}

			return '1.7.3';
		}

		/*
		 * Enqueue JQuery UI version.
		 *
		 * @since  2.0.2
		 * @access public
		 */
		public function enqueue_jqueryui() {
			wp_enqueue_style( 'tmc-jquery-ui-css', 'http://ajax.googleapis.com/ajax/libs/jqueryui/' . $this->get_jqueryui_ver() . '/themes/' . apply_filters( 'tmc_jquery_ui_theme', 'smoothness' ) . '/jquery-ui.css' );
			wp_enqueue_script( 'tmc-jquery-ui', 'https://ajax.googleapis.com/ajax/libs/jqueryui/' . $this->get_jqueryui_ver() . '/jquery-ui.min.js', array( 'jquery' ) );
		}

		/*
		 *  Add Field to meta box (generic function)
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id   string  field id, i.e. the meta key
		 * @param $args mixed|array
		 */
		public function addField( $id, $args ) {
			$new_field       = array( 'id' => $id, 'std' => '', 'desc' => '', 'style' => '', 'multiple' => false );
			$new_field       = array_merge( $new_field, $args );
			$this->_fields[] = $new_field;
		}

		/*
		 *  Add Text Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'style' =>   // custom style for field, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addText( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'text', 'id' => $id, 'std' => '', 'desc' => '', 'style' => '', 'name' => 'Text Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Hidden Field to meta box
		 * @author Ohad Raz
		 * @since  0.1.3
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'style' =>   // custom style for field, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addHidden( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'hidden', 'id' => $id, 'std' => '', 'desc' => '', 'style' => '', 'name' => 'Text Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Paragraph to meta box
		 * @author Ohad Raz
		 * @since  0.1.3
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $value    paragraph html
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addParagraph( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'paragraph', 'id' => $id, 'value' => '', 'style' => '', 'std' => '', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Checkbox Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addCheckbox( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'checkbox', 'id' => $id, 'std' => '', 'desc' => '', 'style' => '', 'name' => 'Checkbox Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add CheckboxList Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $options  (array)  array of key => value pairs for select options
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 *
		 * @return : remember to call: $checkbox_list = $this->get_tax_meta(get_the_ID(), 'meta_name', false);
		 *   which means the last param as false to get the values in an array
		 */
		public function addCheckboxList( $id, $options, $args, $repeater = false ) {
			$new_field = array( 'type' => 'checkbox_list', 'id' => $id, 'std' => '', 'desc' => '', 'style' => '', 'name' => 'Checkbox List Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Textarea Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'style' =>   // custom style for field, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addTextarea( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'textarea', 'id' => $id, 'std' => '', 'desc' => '', 'style' => '', 'name' => 'Textarea Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Select Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string field id, i.e. the meta key
		 * @param $options  (array)  array of key => value pairs for select options
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, (array) optional
		 *                  'multiple' => // select multiple values, optional. Default is false.
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addSelect( $id, $options, $args, $repeater = false ) {
			$new_field = array( 'type' => 'select', 'id' => $id, 'std' => array(), 'desc' => '', 'style' => '', 'name' => 'Select Field', 'multiple' => false, 'options' => $options );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}


		/*
		 *  Add Radio Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string field id, i.e. the meta key
		 * @param $options  (array)  array of key => value pairs for radio options
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addRadio( $id, $options, $args, $repeater = false ) {
			$new_field = array( 'type' => 'radio', 'id' => $id, 'std' => array(), 'desc' => '', 'style' => '', 'name' => 'Radio Field', 'options' => $options, 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Date Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'validate_func' => // validate function, string optional
		 *                  'format' => // date format, default yy-mm-dd. Optional. Default "'d MM, yy'"  See more formats here: http://goo.gl/Wcwxn
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addDate( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'date', 'id' => $id, 'style' => '', 'std' => '', 'desc' => '', 'format' => 'd MM, yy', 'name' => 'Date Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Time Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string- field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'validate_func' => // validate function, string optional
		 *                  'format' => // time format, default hh:mm. Optional. See more formats here: http://goo.gl/83woX
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addTime( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'time', 'id' => $id, 'std' => '', 'style' => '', 'desc' => '', 'format' => 'hh:mm', 'name' => 'Time Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Color Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addColor( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'color', 'id' => $id, 'std' => '', 'style' => '', 'desc' => '', 'name' => 'ColorPicker Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Image Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addImage( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'image', 'id' => $id, 'desc' => '', 'style' => '', 'name' => 'Image Field', 'std' => '', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add File Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addFile( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'file', 'id' => $id, 'desc' => '', 'name' => 'File Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add WYSIWYG Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'style' =>   // custom style for field, string optional Default 'width: 300px; height: 400px'
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addWysiwyg( $id, $args, $repeater = false ) {
			$new_field = array( 'type' => 'wysiwyg', 'id' => $id, 'std' => '', 'desc' => '', 'style' => 'width: 300px; height: 400px', 'name' => 'WYSIWYG Editor Field', 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add Taxonomy Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $options  mixed|array options of taxonomy field
		 *                  'taxonomy' =>    // taxonomy name can be category,post_tag or any custom taxonomy default is category
		 *                  'type' =>  // how to show taxonomy? 'select' (default) or 'checkbox_list'
		 *                  'args' =>  // arguments to query taxonomy, see http://goo.gl/uAANN default ('hide_empty' => false)
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addTaxonomy( $id, $options, $args, $repeater = false ) {
			$q         = array( 'hide_empty' => 0 );
			$tax       = 'category';
			$type      = 'select';
			$temp      = array( 'taxonomy' => $tax, 'type' => $type, 'args' => $q );
			$options   = array_merge( $temp, $options );
			$new_field = array( 'type' => 'taxonomy', 'id' => $id, 'desc' => '', 'name' => 'Taxonomy Field', 'options' => $options, 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add posts Field to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id       string  field id, i.e. the meta key
		 * @param $options  mixed|array options of taxonomy field
		 *                  'type' =>  // how to show posts? 'select' (default) or 'checkbox_list'
		 *                  'args' =>  // arguments to query posts, see http://goo.gl/is0yK default ('posts_per_page' => -1, 'post_type' => 'post')
		 * @param $args     mixed|array
		 *                  'name' => // field name/label string optional
		 *                  'desc' => // field description, string optional
		 *                  'std' => // default value, string optional
		 *                  'validate_func' => // validate function, string optional
		 * @param $repeater bool  is this a field inside a repeatr? true|false(default)
		 */
		public function addPosts( $id, $options, $args, $repeater = false ) {
			$temp      = array( 'type' => 'select', 'args' => array( 'posts_per_page' => - 1, 'post_type' => 'post' ) );
			$options   = array_merge( $temp, $options );
			$new_field = array( 'type' => 'posts', 'id' => $id, 'desc' => '', 'name' => 'Posts Field', 'options' => $options, 'multiple' => false );
			$new_field = array_merge( $new_field, $args );
			if ( false === $repeater ) {
				$this->_fields[] = $new_field;
			} else {
				return $new_field;
			}
		}

		/*
		 *  Add repeater Field Block to meta box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $id   string  field id, i.e. the meta key
		 * @param $args mixed|array
		 *              'name' => // field name/label string optional
		 *              'desc' => // field description, string optional
		 *              'std' => // default value, string optional
		 *              'style' =>   // custom style for field, string optional
		 *              'validate_func' => // validate function, string optional
		 *              'fields' => //fields to repeater
		 */
		public function addRepeaterBlock( $id, $args ) {
			$new_field       = array( 'type' => 'repeater', 'id' => $id, 'name' => 'Reapeater Field', 'fields' => array(), 'inline' => false );
			$new_field       = array_merge( $new_field, $args );
			$this->_fields[] = $new_field;
		}


		/*
		 * Finish Declaration of Meta Box
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 */
		public function Finish() {
			$this->add_missed_values();
		}

		/*
		 * Helper function to check for empty arrays
		 * @author Ohad Raz
		 * @since  1.0
		 * @access public
		 *
		 * @param $args mixed|array
		 */
		public function is_array_empty( $array ) {
			if ( !is_array( $array ) )
				return true;

			foreach ( $array as $a ) {
				if ( is_array( $a ) ) {
					foreach ( $a as $sub_a ) {
						if ( !empty( $sub_a ) && $sub_a != '' )
							return false;
					}
				} else {
					if ( !empty( $a ) && $a != '' )
						return false;
				}
			}
			return true;
		}


		//get term meta field
		public function get_tax_meta( $term_id, $key, $multi = false ) {
			$t_id = ( is_object( $term_id ) ) ? $term_id->term_id : $term_id;
			$m    = get_option( 'tax_meta_' . $t_id );
			if ( isset( $m[$key] ) ) {
				return $m[$key];
			} else {
				return '';
			}
		}

		//delete meta
		public function delete_tax_meta( $term_id, $key ) {
			$m = get_option( 'tax_meta_' . $term_id );
			if ( isset( $m[$key] ) ) {
				unset( $m[$key] );
			}
			update_option( 'tax_meta_' . $term_id, $m );
		}

		//update meta
		public function update_tax_meta( $term_id, $key, $value ) {
			$m       = get_option( 'tax_meta_' . $term_id );
			$m[$key] = $value;
			update_option( 'tax_meta_' . $term_id, $m );
		}


		/*
		 * delete_taxonomy_metadata
		 *
		 * delete meta on term deletion
		 *
		 *  answers issue #16
		 * @author Ohad Raz
		 * @since  1.8.1
		 * @access public
		 * @return Void
		 */
		public function delete_taxonomy_metadata( $term, $term_id ) {
			delete_option( 'tax_meta_' . $term_id );
			if ( function_exists( 'delete_term_meta' ) ) {
				delete_term_meta( $term_id, '' );
			}
		}


		/*
		 * footer_js
		 *  fix issue #2
		 * @author Ohad Raz
		 * @since  1.7.4
		 * @access public
		 * @return Void
		 */
		public function footer_js() {
			?>
			<SCRIPT TYPE="text/javascript">
				//fix issue #2
				var numberOfRows = 0;
				jQuery(document).ready(function () {
					numberOfRows = jQuery("#the-list>tr").length;
					jQuery("#the-list").bind("DOMSubtreeModified", function () {
						if (jQuery("#the-list>tr").length !== numberOfRows) {
							//update new count
							numberOfRows = jQuery("#the-list>tr").length;
							//clear form
							clear_form_meta();
						}
					});
					function clear_form_meta() {
						//remove image
						jQuery(".mupload_img_holder").find("img").remove();
						jQuery(".mupload_img_holder").next().next().next().removeClass('at-delete_image_button').addClass('at-upload_image_button');
						jQuery(".mupload_img_holder").next().next().next().val("Upload Image");
						jQuery(".mupload_img_holder").next().next().val('');
						jQuery(".mupload_img_holder").next().val('');

						//clear selections
						jQuery("#addtag select option").removeProp('selected');
						//clear checkbox
						jQuery("#addtag input:checkbox").removeAttr('checked');
						//clear radio buttons
						jQuery("#addtag input:radio").prop('checked', false);
						//remove repeater blocks
						jQuery(".at-repater-block").remove();

					}
				});
			</SCRIPT>
			<?php
		}

	} // End Class

endif; // End Check Class Exists

/*
 * meta functions for easy access:
 */
//get term meta field
if ( !function_exists( 'get_tax_meta' ) ) {
	function get_tax_meta( $term_id, $key, $multi = false ) {
		$t_id = ( is_object( $term_id ) ) ? $term_id->term_id : $term_id;
		$m    = get_option( 'tax_meta_' . $t_id );
		if ( isset( $m[$key] ) ) {
			return $m[$key];
		} else {
			return '';
		}
	}
}

//delete meta
if ( !function_exists( 'delete_tax_meta' ) ) {
	function delete_tax_meta( $term_id, $key ) {
		$m = get_option( 'tax_meta_' . $term_id );
		if ( isset( $m[$key] ) ) {
			unset( $m[$key] );
		}
		update_option( 'tax_meta_' . $term_id, $m );
	}
}

//update meta
if ( !function_exists( 'update_tax_meta' ) ) {
	function update_tax_meta( $term_id, $key, $value ) {
		$m       = get_option( 'tax_meta_' . $term_id );
		$m[$key] = $value;
		update_option( 'tax_meta_' . $term_id, $m );
	}
}

//get term meta field and strip slashes
if ( !function_exists( 'get_tax_meta_strip' ) ) {
	function get_tax_meta_strip( $term_id, $key, $multi = false ) {
		$t_id = ( is_object( $term_id ) ) ? $term_id->term_id : $term_id;
		$m    = get_option( 'tax_meta_' . $t_id );
		if ( isset( $m[$key] ) ) {
			return is_array( $m[$key] ) ? $m[$key] : stripslashes( $m[$key] );
		} else {
			return '';
		}
	}
}
//get all meta fields of a term
if ( !function_exists( 'get_tax_meta_all' ) ) {
	function get_tax_meta_all( $term_id ) {
		$t_id = ( is_object( $term_id ) ) ? $term_id->term_id : $term_id;
		return get_option( 'tax_meta_' . $t_id, array() );
	}
}
