Picnic - Portfolio & Business Theme

// 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
}

wp_enqueue_script('jquery-ui-core');
    wp_enqueue_script('jquery-ui-sortable');
    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(&$this, 'delete_attachments'));                // delete all attachments when delete post
add_action('wp_ajax_rw_delete_file', array(&$this, 'delete_file'));            // ajax delete files
add_action('wp_ajax_rw_reorder_images', array(&$this, 'reorder_images'));    // ajax reorder images

// 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() {
    global $post;
    echo '
     
    .rw-images li {margin: 0 10px 10px 0; float: left; width: 150px; height: 100px; text-align: center; border: 3px solid #ccc; cursor: move; position: relative}
    .rw-images img {width: 150px; height: 100px}
    .rw-images a {position: absolute; bottom: 0; right: 0; color: #fff; background: #000; font-weight: bold; padding: 5px}
     
    ';
}

echo '
    // add more file
    $(".rw-add-file").click(function(){
        var $first = $(this).parent().find(".file-input:first");
        $first.clone().insertAfter($first).show();
        return false;
    });
';

echo '
    // delete file
    $(".rw-delete-file").click(function(){
        var $parent = $(this).parent(),
            data = $(this).attr("rel");
        $.post(ajaxurl, {action: \'rw_delete_file\', data: data}, function(response){
            if (response  "0") {
                alert("' . __('File has been successfully deleted.') . '");
                $parent.remove();
            }
            if (response  "1") {
                alert("' . __("You don't have permission to delete this file.") . '");
            }
        });
        return false;
    });
';

foreach ($this->_fields as $field) {
    if ('image' != $field['type']) continue;
}

$id = $field['id'];
$nonce_delete = wp_create_nonce('rw_ajax_delete_file');
echo " 
// thickbox upload
$('#rw_upload_$id').click(function(){
    backup = window.send_to_editor;
    window.send_to_editor = function(html) {
        var el = $(html).is('a') ? $('img', html) : $(html),
            img_url = el.attr('src'),
            img_id = el.attr('class');
});
";

img_id = img_id.slice((img_id.search(/wp-image-/) + 9));
}
tb_show('', 'media-upload.php?post_id={$post->ID}; ?>&type=image&TB_iframe=true');

html = '
';
html += '';
html += '_('Delete this image') . "\" class=\"rw-delete-file\" href=\"#\" rel=\"{$post->ID}' + img_id + '!$nonce_delete\">" . _('Delete') . "';
html += ' ';
html += '
';

$('#rw-images-$id').append($(html));

tb_remove();
window.send_to_editor = backup;

return false;

echo " 
// sort
$('#rw-images-$id').sortable({
    placeholder: 'ui-state-highlight',
    update: function (){
        var order = $('#rw-images-$id').sortable('serialize'),
            data = order + '!' + $('#rw-data-$id').val();
        $.post(ajaxurl, {action: 'rw_reorder_images', data: data}, function(response){
            if (response  '0') {
                alert('" . __('Order saved.') . "');
            }
            if (response  '1') {
                alert(\"" . __("You don't have permission to reorder images.") . "\");
            }
        });
    }
});
";

// 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);
        }
    }
}

// Ajax callback for deleting files. Modified from a function used by "Verve Meta Boxes" plugin (http://goo.gl/LzYSq)
function delete_file() {
    if (!isset($_POST['data'])) die();
}

list($post_id, $key, $attach_id, $nonce) = explode('!', $_POST['data']);

if (!wp_verify_nonce($nonce, 'rw_ajax_delete_file')) {
    die('1');
}

wp_delete_attachment($attach_id);
delete_post_meta($post_id, $key, $attach_id);

die('0');

// Ajax callback for reordering images
function reorder_images() {
    if (!isset($_POST['data'])) die();
}

list($order, $post_id, $key, $nonce) = explode('!',$_POST['data']);

if (!wp_verify_nonce($nonce, 'rw_ajax_sort_file')) {
    die('1');
}

parse_str($order, $items);
$items = $items['item'];
$order = 0;
$meta = array();
foreach ($items as $item) {
    wp_update_post(array(
        'ID' => $item,
        'post_parent' => $post_id,
        'menu_order' => $order
    ));
    $order++;
    $meta[] = $item;
}
delete_post_meta($post_id, $key);
foreach ($meta as $value) {
    add_post_meta($post_id, $key, $value);
}

die('0');

/ END UPLOAD /

/ BEGIN COLOR PICKER /

// Check field color
function check_field_color() {
    if ($this->has_field('color') && $this->is_edit_page()) {
        wp_enqueue_style('farbtastic');                                    // enqueue built-in script and style for color picker
        wp_enqueue_script('farbtastic');
        add_action('admin_head', array(&$this, 'add_script_color'));    // add our custom script for color picker
    }
}

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

/ END COLOR PICKER /

/ BEGIN DATE PICKER /

// Check field date
function check_field_date() {
    if ($this->has_field('date') && $this->is_edit_page()) {
        // add style and script, use proper jQuery UI version
        wp_enqueue_style('rw-jquery-ui-css', 'http://ajax.googleapis.com/ajax/libs/jqueryui/' . $this->get_jqueryui_ver() . '/themes/base/jquery-ui.css');
        wp_enqueue_script('rw-jquery-ui', 'https://ajax.googleapis.com/ajax/libs/jqueryui/' . $this->get_jqueryui_ver() . '/jquery-ui.min.js', array('jquery'));
        add_action('admin_head', array(&$this, 'add_script_date'));
    }
}

// Custom script for date picker
function add_script_date() {
    $dates = array();
    foreach ($this->_fields as $field) {
        if ('date' == $field['type']) {
            $dates[$field['id']] = $field['format'];
        }
    }
    echo '
     
    jQuery(document).ready(function($){
    ';
    foreach ($dates as $id => $format) {
        echo "$('#$id').datepicker({
            dateFormat: '$format',
            showButtonPanel: true
        });";
    }
    echo '
    });
     
    ';
}

/ END DATE PICKER /

/ BEGIN TIME PICKER /

// Check field time
function check_field_time() {
    if ($this->has_field('time') && $this->is_edit_page()) {
        // add style and script, use proper jQuery UI version
        wp_enqueue_style('rw-jquery-ui-css', 'http://ajax.googleapis.com/ajax/libs/jqueryui/' . $this->get_jqueryui_ver() . '/themes/base/jquery-ui.css');
        wp_enqueue_script('rw-jquery-ui', 'https://ajax.googleapis.com/ajax/libs/jqueryui/' . $this->get_jqueryui_ver() . '/jquery-ui.min.js', array('jquery'));
        wp_enqueue_script('rw-timepicker', 'https://github.com/trentrichardson/jQuery-Timepicker-Addon/raw/master/jquery-ui-timepicker-addon.js', array('rw-jquery-ui'));
        add_action('admin_head', array(&$this, 'add_script_time'));
    }
}

// Custom script and style for time picker
function add_script_time() {
    // style
    echo '
     
    .ui-timepicker-div {font-size: 0.9em;}
    .ui-timepicker-div .ui-widget-header {margin-bottom: 8px;}
    .ui-timepicker-div dl {text-align: left;}
    .ui-timepicker-div dl dt {height: 25px;}
    .ui-timepicker-div dl dd {margin: -25px 0 10px 65px;}
    .ui-timepicker-div td {font-size: 90%;}
     
    ';
}

/ END TIME 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 '';

foreach ($this->_fields as $field) {
    $meta = get_post_meta($post->ID, $field['id'], !$field['multiple']);
    $meta = !empty($meta) ? $meta : $field['std'];
}
echo '';

$meta = is_array($meta) ? array_map('esc_attr', $meta) : esc_attr($meta);

echo '';
// call separated methods for displaying each type of field
call_user_func(array(&$this, 'show_field_' . $field['type']), $field, $meta);
echo '';

/ END META BOX PAGE /

/ BEGIN META BOX FIELDS /

function show_field_begin($field, $meta) {
    echo " {$field['name']}";
}

function show_field_end($field, $meta) {
    echo "
{$field['desc']}";
}

function show_field_text($field, $meta) {
    $this->show_field_begin($field, $meta);
    echo " ";
    $this->show_field_end($field, $meta);
}

function show_field_textarea($field, $meta) {
    $this->show_field_begin($field, $meta);
    echo " $meta";
    $this->show_field_end($field, $meta);
}

function show_field_select($field, $meta) {
    if (!is_array($meta)) $meta = (array) $meta;
    $this->show_field_begin($field, $meta);
    echo " ";
    foreach ($field['options'] as $key => $value) {
        echo " $value";
    }
    echo "";
    $this->show_field_end($field, $meta);
}

function show_field_radio($field, $meta) {
    $this->show_field_begin($field, $meta);
    foreach ($field['options'] as $key => $value) {
        echo "  $value ";
    }
    $this->show_field_end($field, $meta);
}

function show_field_checkbox($field, $meta) {
    $this->show_field_begin($field, $meta);
    echo "  {$field['desc']}";
}

function show_field_wysiwyg($field, $meta) {
    $this->show_field_begin($field, $meta);
    echo " $meta";
    $this->show_field_end($field, $meta);
}

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

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

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

if (!empty($meta)) {
    $nonce = wp_create_nonce('rw_ajax_delete_file');
    echo ' ' . __('Uploaded files') . ' ';
    echo '
';
    foreach ($meta as $att) {
        if (wp_attachment_is_image($att)) continue; // what's image uploader for?
        echo "
" . wp_get_attachment_link($att) . " (ID}$att!$nonce'>" . __('Delete') . ")
";
    }
    echo '
';
}

// show form upload
echo " " . __('Upload new files') . " 
     
           
        " . __('Add more file') . " rel="nofollow"
     
";

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

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

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

$nonce_delete = wp_create_nonce('rw_ajax_delete_file');
$nonce_sort = wp_create_nonce('rw_ajax_sort_file');

echo " ID}$nonce_sort' />
      
";

foreach ($meta as $att) {
    $src = wp_get_attachment_image_src($att, 'full');
    $src = $src[0];
}
echo '';

echo "

        
        _('Delete this image') . "' class='rw-delete-file' href='#' rel='{$post->ID}$att!$nonce_delete'>" . _('Delete') . " 
         
    
";

echo "" . __('Upload new image') . "" rel="nofollow";

function show_field_color($field, $meta) {
    if (empty($meta)) $meta = '#';
    $this->show_field_begin($field, $meta);
    echo " 
          " . __('Select a color') . " 
           " rel="nofollow";
    $this->show_field_end($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[] = "  $value";
    }
    echo implode('
', $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);
}

/ END META BOX FIELDS /

/ BEGIN META BOX SAVE /

// Save data from meta box
function save($post_id) {
    global $post_type;
    $post_type_object = get_post_type_object($post_type);
}

if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE)                        // check autosave
|| (!isset($_POST['post_ID']) || $post_id != $_POST['post_ID'])            // check revision
|| (!in_array($post_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->_fields as $field) {
    $name = $field['id'];
    $type = $field['type'];
    $old = get_post_meta($post_id, $name, !$field['multiple']);
    $new = isset($_POST[$name]) ? $_POST[$name] : ($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'];

delete_post_meta($post_id, $name);
if (empty($new)) return;

if ($field['multiple']) {
    foreach ($new as $add_new) {
        add_post_meta($post_id, $name, $add_new, false);
    }
} else {
    update_post_meta($post_id, $name, $new);
}

}

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, $id, false);    // save file's url in meta fields
}

/ 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('post')
    ), $this->_meta_box);
}

// default values for fields
foreach ($this->_fields as & $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' : '');
    $style = 'width: 97%';
    if ('select' == $field['type']) $style = 'height: auto';
}

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

// Check if field with $type exists
function has_field($type) {
    foreach ($this->_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'['index']
 * To the more standard and appropriate:
 *     $_FILES'field'['key']
 */
function fix_file_array(&$files) {
    $output = array();
    foreach ($files as $key => $list) {
        foreach ($list as $index => $value) {
            $output$index = $value;
        }
    }
    $files = $output;
}

// Get proper jQuery UI version to not conflict with WP admin scripts
function get_jqueryui_ver() {
    global $wp_version;
    if (version_compare($wp_version, '3.1', '>=')) {
        return '1.8.10';
    }
}

return '1.7.3';

/* END HELPER FUNCTIONS **/