<?php

class Chimps_Metabox {
	function __construct( $id, $title, $options ) {
		$this->id      = $id;
		$this->title   = $title;
		$this->options = $options;

		$this->fields = array();
	}

	function tab( $title ) {
		$this->add( array( 'title' => $title, 'type' => 'tab' ) );

		return $this;
	}

	function add( $options ) {
		$this->fields[] = $options;
	}

	function end() {
		$tabs = array();
		foreach( $this->fields as $field ) {
			if( $field['type'] === 'tab' ) {
				$tabs[] = array( 'title' => $field['title'], 'fields' => array() );
			}
			else {
				$tabs[count( $tabs ) - 1]['fields'][] = $field;
			}
		}

		$final = array(
			'id'    => $this->id,
			'title' => $this->title,
			'pages' => $this->options['pages'],
			'tabs'  => $tabs
		);

		new RW_Meta_Box_Taxonomy( $final );
	}

	/**
	 * Helper Functions
	 */
	function image( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'image', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function text( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'text', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function checkbox( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'checkbox', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function sliderhelp( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'sliderhelp', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function reorder( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'reorder', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function select( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'select', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function section_order( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'section_order', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function pagehelp( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'pagehelp', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function textarea( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'textarea', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function color( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'color', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function image_select( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'image_select', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}

	function single_image( $id, $name, $desc, $options = array() ) {
		$this->add( $options + array( 'type' => 'single_image', 'id' => $id, 'name' => $name, 'desc' => $desc ) );

		return $this;
	}
}

/**
 * Meta Box class
 */
class RW_Meta_Box {

	var $_meta_box;
	var $tabs;

	// Create meta box based on given data
	function __construct( $meta_box ) {
		if( !is_admin() ) {
			return;
		}

		// assign meta box values to local variables and add it's missed values
		$this->_meta_box = $meta_box;
		$this->tabs      = & $this->_meta_box['tabs'];
		$this->add_missed_values();

		add_action( 'admin_menu', array( &$this, 'add' ) ); // add meta box
		add_action( 'pre_post_update', array( &$this, 'save' ) ); // save meta box's data

		// check for some special fields and add needed actions for them
		$this->check_field_upload();
		$this->check_field_color();

	}

	/******************** BEGIN UPLOAD **********************/

	// Check field upload and add needed actions
	function check_field_upload() {
		if( $this->has_field( 'image' ) || $this->has_field( 'file' ) ) {
			add_action( 'post_edit_form_tag', array( &$this, 'add_enctype' ) ); // add data encoding type for file uploading
			add_action( 'admin_head-post.php', array( &$this, 'add_script_upload' ) ); // add scripts for handling add/delete images
			add_action( 'admin_head-post-new.php', array( &$this, 'add_script_upload' ) );
			add_action( 'delete_post', array( &$this, 'delete_attachments' ) ); // delete all attachments when delete post
		}
	}

	// Add data encoding type for file uploading
	function add_enctype() {
		echo ' enctype="multipart/form-data"';
	}

	// Add scripts for handling add/delete images
	function add_script_upload() {
		echo '
		<script type="text/javascript">
		jQuery(document).ready(function($) {
			// add more file
			$(".rw-add-file").click(function(){
				var $first = $(this).parent().find(".file-input:first");
				$first.clone().insertAfter($first).show();
				return false;
			});

			// delete file
			$(".rw-delete-file").click(function(){
				var $parent = $(this).parent(),
					data = $(this).attr("rel");
				$.post(ajaxurl, {action: \'rw_delete_file\', data: data}, function(Cyber Chimps Framework){
					$parent.fadeOut("slow");
					
				});
				return false;
			});
		});
		</script>';
	}

	// Delete all attachments when delete post
	function delete_attachments( $post_id ) {
		$attachments = get_posts( array(
			                          'numberposts' => -1,
			                          'post_type'   => 'attachment',
			                          'post_parent' => $post_id
		                          ) );
		if( !empty( $attachments ) ) {
			foreach( $attachments as $att ) {
				wp_delete_attachment( $att->ID );
			}
		}
	}

	/******************** END UPLOAD **********************/

	/******************** BEGIN COLOR PICKER **********************/

	// Check field color
	function check_field_color() {
		if( $this->has_field( 'color' ) && $this->is_edit_page() ) {
			wp_enqueue_style( 'farbtastic' ); // enqueue built-in script and style for color picker
			wp_enqueue_script( 'farbtastic' );
		}
	}

	// Custom script for color picker
	function add_script_color() {
		$ids = array();
		foreach( $this->tabs as $tab ) {
			foreach( $tab['fields'] as $field ) {
				if( 'color' == $field['type'] ) {
					$ids[] = $field['id'];
				}
			}
		}
		echo '
		<script type="text/javascript">
		jQuery(document).ready(function($){
		';
		foreach( $ids as $id ) {
			echo "
			$('#picker-$id').farbtastic('#$id');
			$('#select-$id').click(function(){
				$('#picker-$id').toggle();
				return false;
			});
			";
		}
		echo '
		});
		</script>
		';
	}

	/******************** END COLOR PICKER **********************/

	/******************** BEGIN META BOX PAGE **********************/

	// Add meta box for multiple post types
	function add() {
		foreach( $this->_meta_box['pages'] as $page ) {
			add_meta_box( $this->_meta_box['id'], $this->_meta_box['title'], array( &$this, 'show' ), $page, $this->_meta_box['context'], $this->_meta_box['priority'] );
		}
	}

	// Callback function to show fields in meta box
	function show() {
		global $post;

		wp_nonce_field( basename( __FILE__ ), 'rw_meta_box_nonce' );

		echo '<div class="metabox-tabs-div">';

		foreach( $this->_meta_box['tabs'] as $counter => $tab ) {
			$counter++;
			$id = preg_replace( "/[^a-zA-Z0-9]+/", "-", $tab['title'] );
			echo "<div class='subsection' id='subsection-{$id}'>";
			echo "<h4>{$tab['title']}<span></span></h4>";
			echo "<div class='subsection-items'>";
			$this->render_fields( $tab['fields'], "tab{$counter}" );
			echo "</div>";
			echo "</div>";
		}
		echo '</div>';

		$this->add_script_color();
	}

	function render_fields( $fields, $tab = '' ) {
		global $post;
		echo '<div class="', $tab, '">';
		echo '<table class="form-table">';
		foreach( $fields as $field ) {
			$meta = get_post_meta( $post->ID, $field['id'], !( isset( $field['multiple'] ) && $field['multiple'] ) );
			$meta = ( !empty( $meta ) || $meta === "0" ) ? $meta : ( isset( $field['std'] ) ? $field['std'] : '' );

			echo '<tr class="' . $field['id'] . '">';
			// call separated methods for displaying each type of field
			call_user_func( array( &$this, 'show_field_' . $field['type'] ), $field, $meta );
			echo '</tr>';
		}
		echo '</table>';
		echo '</div>';
	}

	/******************** END META BOX PAGE **********************/

	/******************** BEGIN META BOX FIELDS **********************/

	function show_field_begin( $field, $meta ) {
		echo "<th style='width:20%'><label for='{$field['id']}'>{$field['name']}</label></th><td>";
	}

	function show_field_end( $field, $meta ) {
		echo "<br />{$field['desc']}</td>";
	}

	function show_field_text( $field, $meta ) {
		$this->show_field_begin( $field, $meta );
		echo "<input type='text' name='{$field['id']}' id='{$field['id']}' value='$meta' size='30' style='width:60%' />";
		$this->show_field_end( $field, $meta );
	}

	function show_field_textarea( $field, $meta ) {
		$this->show_field_begin( $field, $meta );
		echo "<textarea name='{$field['id']}' cols='60' rows='15' style='width:97%'>$meta</textarea>";
		$this->show_field_end( $field, $meta );
	}

	function show_field_select( $field, $meta ) {
		if( !is_array( $meta ) ) {
			$meta = (array)$meta;
		}
		$this->show_field_begin( $field, $meta );
		echo "<select name='{$field['id']}" . ( ( isset( $field['multiple'] ) && $field['multiple'] ) ? "[]' multiple='multiple' style='height:auto'" : "'" ) . ">";
		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 );
	}

	function show_field_radio( $field, $meta ) {
		$this->show_field_begin( $field, $meta );
		foreach( $field['options'] as $key => $value ) {
			echo "<input type='radio' name='{$field['id']}' value='$key'" . checked( $meta, $key, false ) . " /> $value ";
		}
		$this->show_field_end( $field, $meta );
	}

	function show_field_checkbox( $field, $meta ) {
		$this->show_field_begin( $field, $meta );
		echo "<input type='checkbox' class='checkbox' name='{$field['id']}' id='checkbox-{$field['id']}' " . checked( $meta, 1, false ) . " value='1'/> {$field['desc']}</td>";
	}

	function show_field_wysiwyg( $field, $meta ) {
		$this->show_field_begin( $field, $meta );
		echo "<textarea name='{$field['id']}' class='theEditor' cols='60' rows='15' style='width:97%'>$meta</textarea>";
		$this->show_field_end( $field, $meta );
	}

	function show_field_pagehelp( $field, $meta ) {
		$themenamefull = apply_filters( 'cyberchimps_current_theme_name', 'CyberChimps' );
		$pagedocs      = apply_filters( 'cyberchimps_page_options_help', 'http://cyberchimps.com/guide/how-to-use-the-page-or-post-page-element/' );

		$this->show_field_begin( $field, $meta );
		echo "Visit our $themenamefull Page Options help page here: <a href='$pagedocs' target='_blank'>Page Options Instructions</a></td>";
	}

	function show_field_sliderhelp( $field, $meta ) {

		$themenamefull = apply_filters( 'cyberchimps_current_theme_name', 'CyberChimps' );
		$sliderdocs    = apply_filters( 'cyberchimps_slider_options_help', 'http://cyberchimps.com' );

		$this->show_field_begin( $field, $meta );
		echo "Visit our $themenamefull Slider help page here: <a href='$sliderdocs' target='_blank'>Slider Instructions</a></td>";
	}

	function show_field_reorder( $field, $meta ) {
		$this->show_field_begin( $field, $meta );
		echo "Install the <a href='http://wordpress.org/extend/plugins/post-types-order/' target='_blank'>Post Types Order Plugin</a> to control the order of your custom slides.</td>";
	}

	function show_field_file( $field, $meta ) {
		global $post;

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

		$this->show_field_begin( $field, $meta );
		echo "{$field['desc']}<br />";

		if( !empty( $meta ) ) {
			// show attached files
			$attachs = get_posts( array(
				                      'numberposts' => -1,
				                      'post_type'   => 'attachment',
				                      'post_parent' => $post->ID
			                      ) );

			$nonce = wp_create_nonce( 'rw_ajax_delete_file' );

			echo '<div style="margin-bottom: 10px"><strong>' . _( 'Uploaded files' ) . '</strong></div>';
			echo '<ol>';
			foreach( $attachs as $att ) {
				if( wp_attachment_is_image( $att->ID ) ) {
					continue;
				} // what's image uploader for?

				$src = wp_get_attachment_url( $att->ID );
				if( in_array( $src, $meta ) ) {
					echo "<li>" . wp_get_attachment_link( $att->ID ) . " (<a class='rw-delete-file' href='javascript:void(0)' rel='{$post->ID}!{$field['id']}!{$att->ID}!{$src}!{$nonce}'>Delete</a>)</li>";
				}
			}
			echo '</ol>';
		}

		// show form upload
		echo "<div style='clear: both'><strong>" . _( 'Upload new files' ) . "</strong></div>
			<div class='new-files'>
				<div class='file-input'><input type='file' name='{$field['id']}[]' /></div>
				<a class='rw-add-file' href='javascript:void(0)'>" . _( 'Add more file' ) . "</a>
			</div>
		</td>";
	}

	function show_field_image( $field, $meta ) {
		global $post;

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

		$this->show_field_begin( $field, $meta );
		echo "{$field['desc']}<br />";

		if( !empty( $meta ) ) {
			// show attached images
			$attachs = get_posts( array(
				                      'numberposts'    => -1,
				                      'post_type'      => 'attachment',
				                      'post_parent'    => $post->ID,
				                      'post_mime_type' => 'image', // get attached images only
				                      'output'         => ARRAY_A
			                      ) );

			$nonce = wp_create_nonce( 'rw_ajax_delete_file' );

			echo '<div style="margin-bottom: 10px"><strong>' . _( 'Uploaded images' ) . '</strong></div>';
			foreach( $attachs as $att ) {
				$src = wp_get_attachment_image_src( $att->ID, 'full' );
				$src = $src[0];

				if( in_array( $src, $meta ) ) {
					echo "<div style='margin: 0 10px 10px 0; float: left'><img width='150' src='$src' /><br />
							<a class='rw-delete-file' href='javascript:void(0)' rel='{$post->ID}!{$field['id']}!{$att->ID}!{$src}!{$nonce}'>Delete</a>
						</div>";
				}
			}
		}

		// show form upload
		echo "<div style='clear: both'><strong>" . _( 'Upload new images (Make sure to publish the post to save)' ) . "</strong></div>
			<div class='new-files'>
				<div class='file-input'><input type='file' name='{$field['id']}[]' /></div>
				
			</div>
		</td>";
	}

	function show_field_color( $field, $meta ) {
		if( empty( $meta ) ) {
			$meta = '#';
		}
		$this->show_field_begin( $field, $meta );
		echo "<input type='text' name='{$field['id']}' id='{$field['id']}' value='$meta' size='8' />
			  <a href='#' id='select-{$field['id']}'>" . _( 'Select a color' ) . "</a>
			  <div style='display:none' id='picker-{$field['id']}'></div>";
		$this->show_field_end( $field, $meta );
	}

	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 ) {
			$html[] = "<input type='checkbox' name='{$field['id']}[]' value='$key'" . checked( in_array( $key, $meta ), true, false ) . " /> $value";
		}
		echo implode( '<br />', $html );
		$this->show_field_end( $field, $meta );
	}

	function show_field_date( $field, $meta ) {
		$this->show_field_text( $field, $meta );
	}

	function show_field_time( $field, $meta ) {
		$this->show_field_text( $field, $meta );
	}

	function show_field_section_order( $field, $meta ) {

		//Define image path
		$image_path = get_template_directory_uri() . "/cyberchimps/lib/images/";

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

		echo "<div class='section_order' id=" . esc_attr( $field['id'] ) . ">";
		echo "<div class='left_list'>";
		echo "<div id='inactive'>Inactive Elements</div>";
		echo "<div class='list_items'>";
		foreach( $field['options'] as $key => $option ) {
			if( is_array( $meta ) ) {
				if( in_array( $key, $meta ) ) {
					continue;
				}
			}
			echo "<div class='list_item'>";
			echo '<img src="' . $image_path . 'minus.png" class="action" title="Remove"/>';
			echo "<span data-key='{$key}'>{$option}</span>";
			echo "</div>";
		}
		echo "</div>";
		echo "</div>";
		echo '<div id="arrow"><img src="' . $image_path . 'arrowdrag.png" /></div>';
		echo "<div class='right_list'>";
		echo "<div id='active'>Active Elements</div>";
		echo "<div id='drag'>Drag & Drop Elements</div>";
		echo "<div class='list_items'>";
		if( is_array( $meta ) ) {
			foreach( $meta as $key => $option ) {
				if( !array_key_exists( $option, $field['options'] ) ) {
					continue;
				}
				echo "<div class='list_item'>";
				echo '<img src="' . $image_path . 'minus.png" class="action" title="Remove"/>';
				echo '<span data-key="' . $option . '">' . $field['options'][$option] . '</span>';
				echo "</div>";
			}
		}
		echo "</div>";
		echo "</div>";
		echo "<input class='section-order-tracker' type='hidden' id={$field['id']} name={$field['id']} />";
		echo '<div id="values"></div>';
		echo "</div>";
		?>

		<script type="text/javascript">
			// Section order function
			jQuery(function ($) {
				var initialize = function (id) {
					var el = $("#" + id);

					function update(base) {
						var value_set = base.find("#values");
						var val = '';
						base.find('.right_list .list_items span').each(function () {
							val += '<input type="hidden" name="' + id + '[]" value="' + $(this).data('key') + '" />';
						});
						value_set.html(val);

						el.find('.right_list .action').show();
						el.find('.left_list .action').hide();

						/* To hide subsections when element is removed from active list */
						var hidden = base.find("input[class='section-order-tracker']");
						var val = [];
						base.find('.right_list .list_items span').each(function () {
							val.push($(this).data('key'));
						})
						hidden.val(val.join(",")).change();
						$('.right_list .action').show();
						$('.left_list .action').hide();

					}

					el.find(".left_list .list_items").delegate(".action", "click", function () {
						var item = $(this).closest('.list_item');
						$(this).closest('.section_order').children('.right_list').children('.list_items').append(item);
						update($(this).closest(".section_order"));
					});
					el.find(".right_list .list_items").delegate(".action", "click", function () {
						var item = $(this).closest('.list_item');
						$(this).val('Add');
						$(this).closest('.section_order').children('.left_list').children('.list_items').append(item);
						$(this).hide();
						update($(this).closest(".section_order"));
					});
					el.find(".right_list .list_items").sortable({
						update: function () {
							update($(this).closest(".section_order"));
						},
						connectWith: '#' + id + ' .left_list .list_items'
					});

					el.find(".left_list .list_items").sortable({
						connectWith: '#' + id + ' .right_list .list_items'
					});

					update(el);
				}

				$('.section_order').each(function () {
					initialize($(this).attr('id'));
				});
			});
		</script>
		<style type="text/css">
			.left_list, .right_list {
				float: left;
				margin: 20px;
				width: 130px;
			}

			.list_items {
				padding-bottom: 5px;
			}
		</style>

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

	function show_field_image_select( $field, $meta ) {
		$this->show_field_begin( $field, $meta );
		// var_dump($field, $meta);
		echo "<div class='image_select'>";
		foreach( $field['options'] as $key => $option ) {
			echo "<img data-key='{$key}' class='" . ( $key == $meta ? ' selected' : '' ) . "' src='{$option}' />";
		}
		echo "<input type='hidden' name='{$field['id']}' />";
		echo "</div>";
		// $this->show_field_end($field, $meta);
	}

	function show_field_single_image( $field, $meta ) {
		$this->show_field_begin( $field, $meta );

		if( $meta ) {
			echo "<img class='image_preview' src='{$meta}' /><br/>";
		}

		echo "<input type='button' class='upload_image_button' value='" . __( 'Upload', 'cyberchimps_core' ) . "' style='font-size: 14px;padding: 5px 10px;' />";
		echo "<br/>" . __( 'or enter URL', 'cyberchimps_core' ) . "<br/>";
		echo "<input class='upload_image_field' type='text' size='50' name='{$field['id']}_url' value='{$meta}'/>";
		$this->show_field_end( $field, $meta );
	}

	/******************** END META BOX FIELDS **********************/

	/******************** BEGIN META BOX SAVE **********************/

	// Save data from meta box
	function save( $post_id ) {
		global $pagenow;

		// check if this is a revision as the revision id is different to post id. if it is get the parent post id if not then get the post id
		$post_revision = wp_is_post_revision( $post_id );
		$post_id       = ( $post_revision ) ? $post_revision : $post_id;

		// check that the save is coming from the edit post page and not the quick edit
		if( 'admin-ajax.php' != $pagenow ) {
			if( isset( $_POST['post_type'] ) ) {
				$post_type = $_POST['post_type'];
			}
			else {
				$post_type = 'null';
			}

			$post_type_object = get_post_type_object( $post_type );

			if( ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) // check autosave
				|| ( !isset( $_POST['post_ID'] ) || $post_id != $_POST['post_ID'] ) // check revision
				|| ( !in_array( $_POST['post_type'], $this->_meta_box['pages'] ) ) // check if current post type is supported
				|| ( !check_admin_referer( basename( __FILE__ ), 'rw_meta_box_nonce' ) ) // verify nonce
				|| ( !current_user_can( $post_type_object->cap->edit_post, $post_id ) )
			) { // check permission
				return $post_id;
			}

			foreach( $this->tabs as $tab ) {
				foreach( $tab['fields'] as $field ) {
					$name = $field['id'];
					$type = $field['type'];
					$old  = get_post_meta( $post_id, $name, !( isset( $field['multiple'] ) && $field['multiple'] ) );
					$new  = isset( $_POST[$name] ) ? $_POST[$name] : ( ( isset( $field['multiple'] ) && $field['multiple'] ) ? array() : '' );

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

					// 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 ), $post_id, $field, $old, $new );
					}
					else {
						$this->save_field( $post_id, $field, $old, $new );
					}
				}
			}
		}
	}

	// Common functions for saving field
	function save_field( $post_id, $field, $old, $new ) {
		$name = $field['id'];

		// single value
		if( !( isset( $field['multiple'] ) && $field['multiple'] ) ) {
			if( '' != $new && $new != $old ) {
				update_post_meta( $post_id, $name, $new );
			}
			elseif( '' == $new ) {
				delete_post_meta( $post_id, $name, $old );
			}

			return;
		}

		// multiple values
		// get new values that need to add and get old values that need to delete
		$add    = array_diff( $new, $old );
		$delete = array_diff( $old, $new );
		foreach( $add as $add_new ) {
			add_post_meta( $post_id, $name, $add_new, false );
		}
		foreach( $delete as $delete_old ) {
			delete_post_meta( $post_id, $name, $delete_old );
		}
	}

	function save_field_wysiwyg( $post_id, $field, $old, $new ) {
		$new = wpautop( $new );
		$this->save_field( $post_id, $field, $old, $new );
	}

	function save_field_file( $post_id, $field, $old, $new ) {
		$name = $field['id'];
		if( empty( $_FILES[$name] ) ) {
			return;
		}

		$this->fix_file_array( $_FILES[$name] );

		foreach( $_FILES[$name] as $position => $fileitem ) {
			$file = wp_handle_upload( $fileitem, array( 'test_form' => false ) );

			if( empty( $file['file'] ) ) {
				continue;
			}
			$filename = $file['file'];

			$attachment = array(
				'post_mime_type' => $file['type'],
				'guid'           => $file['url'],
				'post_parent'    => $post_id,
				'post_title'     => preg_replace( '/\.[^.]+$/', '', basename( $filename ) ),
				'post_content'   => ''
			);
			$id         = wp_insert_attachment( $attachment, $filename, $post_id );
			if( !is_wp_error( $id ) ) {
				wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $filename ) );
				add_post_meta( $post_id, $name, $file['url'], false ); // save file's url in meta fields
			}
		}
	}

	// Save images, call save_field_file, cause they use the same mechanism
	function save_field_image( $post_id, $field, $old, $new ) {
		$this->save_field_file( $post_id, $field, $old, $new );
	}

	function save_field_single_image( $post_id, $field, $old, $new ) {
		if( isset( $_FILES[$field['id']] ) && $_FILES[$field['id']]['tmp_name'] ) {
			$overrides = array( 'test_form' => false );
			$file      = wp_handle_upload( $_FILES[$field['id']], $overrides );
			if( !is_wp_error( $file ) ) {
				update_post_meta( $post_id, $field['id'], $file['url'] );
			}
		}
		elseif( isset( $_POST[$field['id'] . '_url'] ) ) {
			$url = $_POST[$field['id'] . '_url'];
			update_post_meta( $post_id, $field['id'], $url );
		}
	}

	function save_field_checkbox( $post_id, $field, $old, $new ) {
		$new = $new ? "1" : "0";
		update_post_meta( $post_id, $field['id'], $new );
	}

	/******************** END META BOX SAVE **********************/

	/******************** BEGIN HELPER FUNCTIONS **********************/

	// Add missed values for meta box
	function add_missed_values() {
		// default values for meta box
		$this->_meta_box = array_merge( array(
			                                'context'  => 'normal',
			                                'priority' => 'high',
			                                'pages'    => array( 'if_custom_slides' )
		                                ), $this->_meta_box );

		// default values for fields
		foreach( $this->tabs as $tabkey => $tab ) {
			foreach( $tab['fields'] as $key => $field ) {
				$multiple                  = in_array( $field['type'], array( 'checkbox_list', 'file', 'image' ) ) ? true : false;
				$std                       = $multiple ? array() : '';
				$format                    = 'date' == $field['type'] ? 'yy-mm-dd' : ( 'time' == $field['type'] ? 'hh:mm' : '' );
				$this->tabs[$tabkey][$key] = array_merge( array(
					                                          'multiple'      => $multiple,
					                                          'std'           => $std,
					                                          'desc'          => '',
					                                          'format'        => $format,
					                                          'validate_func' => ''
				                                          ), $field );
			}
		}
	}

	// Check if field with $type exists
	function has_field( $type ) {
		foreach( $this->_meta_box['tabs'] as $tab ) {
			foreach( $tab['fields'] as $field ) {
				if( $type == $field['type'] ) {
					return true;
				}
			}
		}

		return false;
	}

	// Check if current page is edit page
	function is_edit_page() {
		global $pagenow;
		if( in_array( $pagenow, array( 'post.php', 'post-new.php' ) ) ) {
			return true;
		}

		return false;
	}

	/**
	 * Fixes the odd indexing of multiple file uploads from the format:
	 *     $_FILES['field']['key']['index']
	 * To the more standard and appropriate:
	 *     $_FILES['field']['index']['key']
	 */
	function fix_file_array( &$files ) {
		$output = array();
		foreach( $files as $key => $list ) {
			foreach( $list as $index => $value ) {
				$output[$index][$key] = $value;
			}
		}
		$files = $output;
	}

	/******************** END HELPER FUNCTIONS **********************/
}

?>
<?php


/********************* BEGIN EXTENDING CLASS ***********************/

/**
 * Extend RW_Meta_Box class
 * Add field type: 'taxonomy'
 */
class RW_Meta_Box_Taxonomy extends RW_Meta_Box {

	function add_missed_values() {
		parent::add_missed_values();

		// add 'multiple' option to taxonomy field with checkbox_list type
		foreach( $this->tabs as $keytab => $tab ) {
			foreach( $tab['fields'] as $key => $field ) {
				if( 'taxonomy' == $field['type'] && 'checkbox_list' == $field['options']['type'] ) {
					$this->tabs[$keytab]['fields'][$key]['multiple'] = true;
				}
			}
		}
	}

	// show taxonomy list
	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 );
	}
}

/********************* END EXTENDING CLASS ***********************/

add_action( 'admin_print_styles-post-new.php', 'metabox_enqueue' );
add_action( 'admin_print_styles-post.php', 'metabox_enqueue' );

function metabox_enqueue() {
	$path_js  = get_template_directory_uri() . "/cyberchimps/lib/js/";
	$path_css = get_template_directory_uri() . "/cyberchimps/lib/css/";
	$color    = get_user_meta( get_current_user_id(), 'admin_color', true );

	wp_register_style( 'metabox-tabs-css', $path_css . 'metabox-tabs.css' );

	wp_register_script( 'jf-metabox-tabs', $path_js . 'metabox-tabs.js' );

	wp_register_script( 'jf-metabox-tabs', $path_js . 'metabox-tabs.min.js' );

	wp_enqueue_script( 'jf-metabox-tabs' );

	// Load different css/js for different version of WP to support respective media uploader
	if( function_exists( 'wp_enqueue_media' ) ) {
		wp_enqueue_media();
		wp_enqueue_script( 'metabox-media-uploader-3.5', $path_js . 'media-uploader-new.min.js', array( 'jquery' ) );
	}
	else {
		wp_enqueue_style( 'thickbox' );
		wp_enqueue_script( 'media-upload' );
		wp_enqueue_script( 'thickbox' );
		wp_enqueue_script( 'metabox-media-uploader-below-3.5', $path_js . 'media-uploader-old.min.js', array( 'jquery' ) );
	}

	wp_enqueue_script( 'jf-metabox-tabs' );
	wp_enqueue_script( 'jquery-touch-punch-min', $path_js . 'touch-punch.min.js', array( 'jquery' ) );
	wp_enqueue_script( 'jquery-touch-sense', $path_js . 'touch-sensitive.min.js', array( 'jquery' ) );

	wp_enqueue_style( 'metabox-tabs-css' );
}

/********************* END DEFINITION OF META BOXES ***********************/

function cyberchimps_add_edit_form_multipart_encoding() {
	echo ' enctype="multipart/form-data"';
}

add_action( 'post_edit_form_tag', 'cyberchimps_add_edit_form_multipart_encoding' );