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media.php
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media.php
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<?php
/**
* WordPress Administration Media API.
*
* @package WordPress
* @subpackage Administration
*/
/**
* Defines the default media upload tabs
*
* @since 2.5.0
*
* @return array default tabs
*/
function media_upload_tabs() {
$_default_tabs = array(
'type' => __('From Computer'), // handler action suffix => tab text
'type_url' => __('From URL'),
'gallery' => __('Gallery'),
'library' => __('Media Library')
);
return apply_filters('media_upload_tabs', $_default_tabs);
}
/**
* Adds the gallery tab back to the tabs array if post has image attachments
*
* @since 2.5.0
*
* @param array $tabs
* @return array $tabs with gallery if post has image attachment
*/
function update_gallery_tab($tabs) {
global $wpdb;
if ( !isset($_REQUEST['post_id']) ) {
unset($tabs['gallery']);
return $tabs;
}
$post_id = intval($_REQUEST['post_id']);
if ( $post_id )
$attachments = intval( $wpdb->get_var( $wpdb->prepare( "SELECT count(*) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent = %d", $post_id ) ) );
if ( empty($attachments) ) {
unset($tabs['gallery']);
return $tabs;
}
$tabs['gallery'] = sprintf(__('Gallery (%s)'), "<span id='attachments-count'>$attachments</span>");
return $tabs;
}
add_filter('media_upload_tabs', 'update_gallery_tab');
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*/
function the_media_upload_tabs() {
global $redir_tab;
$tabs = media_upload_tabs();
$default = 'type';
if ( !empty($tabs) ) {
echo "<ul id='sidemenu'>\n";
if ( isset($redir_tab) && array_key_exists($redir_tab, $tabs) )
$current = $redir_tab;
elseif ( isset($_GET['tab']) && array_key_exists($_GET['tab'], $tabs) )
$current = $_GET['tab'];
else
$current = apply_filters('media_upload_default_tab', $default);
foreach ( $tabs as $callback => $text ) {
$class = '';
if ( $current == $callback )
$class = " class='current'";
$href = add_query_arg(array('tab' => $callback, 's' => false, 'paged' => false, 'post_mime_type' => false, 'm' => false));
$link = "<a href='" . esc_url($href) . "'$class>$text</a>";
echo "\t<li id='" . esc_attr("tab-$callback") . "'>$link</li>\n";
}
echo "</ul>\n";
}
}
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @param integer $id image attachment id
* @param string $caption image caption
* @param string $alt image alt attribute
* @param string $title image title attribute
* @param string $align image css alignment property
* @param string $url image src url
* @param string|bool $rel image rel attribute
* @param string $size image size (thumbnail, medium, large, full or added with add_image_size() )
* @return string the html to insert into editor
*/
function get_image_send_to_editor($id, $caption, $title, $align, $url='', $rel = false, $size='medium', $alt = '') {
$html = get_image_tag($id, $alt, $title, $align, $size);
$rel = $rel ? ' rel="attachment wp-att-' . esc_attr($id).'"' : '';
if ( $url )
$html = '<a href="' . esc_attr($url) . "\"$rel>$html</a>";
$html = apply_filters( 'image_send_to_editor', $html, $id, $caption, $title, $align, $url, $size, $alt );
return $html;
}
/**
* Adds image shortcode with caption to editor
*
* @since 2.6.0
*
* @param string $html
* @param integer $id
* @param string $caption image caption
* @param string $alt image alt attribute
* @param string $title image title attribute
* @param string $align image css alignment property
* @param string $url image src url
* @param string $size image size (thumbnail, medium, large, full or added with add_image_size() )
* @return string
*/
function image_add_caption( $html, $id, $caption, $title, $align, $url, $size, $alt = '' ) {
if ( empty($caption) || apply_filters( 'disable_captions', '' ) )
return $html;
$id = ( 0 < (int) $id ) ? 'attachment_' . $id : '';
if ( ! preg_match( '/width=["\']([0-9]+)/', $html, $matches ) )
return $html;
$width = $matches[1];
$caption = str_replace( array("\r\n", "\r"), "\n", $caption);
$caption = preg_replace_callback( '/<[a-zA-Z0-9]+(?: [^<>]+>)*/', '_cleanup_image_add_caption', $caption );
// convert any remaining line breaks to <br>
$caption = preg_replace( '/[ \n\t]*\n[ \t]*/', '<br />', $caption );
$html = preg_replace( '/(class=["\'][^\'"]*)align(none|left|right|center)\s?/', '$1', $html );
if ( empty($align) )
$align = 'none';
$shcode = '[caption id="' . $id . '" align="align' . $align . '" width="' . $width . '"]' . $html . ' ' . $caption . '[/caption]';
return apply_filters( 'image_add_caption_shortcode', $shcode, $html );
}
add_filter( 'image_send_to_editor', 'image_add_caption', 20, 8 );
/**
* Private preg_replace callback used in image_add_caption()
*
* @access private
* @since 3.4.0
*/
function _cleanup_image_add_caption( $matches ) {
// remove any line breaks from inside the tags
return preg_replace( '/[\r\n\t]+/', ' ', $matches[0] );
}
/**
* Adds image html to editor
*
* @since 2.5.0
*
* @param string $html
*/
function media_send_to_editor($html) {
?>
<script type="text/javascript">
/* <![CDATA[ */
var win = window.dialogArguments || opener || parent || top;
win.send_to_editor('<?php echo addslashes($html); ?>');
/* ]]> */
</script>
<?php
exit;
}
/**
* This handles the file upload POST itself, creating the attachment post.
*
* @since 2.5.0
*
* @param string $file_id Index into the {@link $_FILES} array of the upload
* @param int $post_id The post ID the media is associated with
* @param array $post_data allows you to overwrite some of the attachment
* @param array $overrides allows you to override the {@link wp_handle_upload()} behavior
* @return int the ID of the attachment
*/
function media_handle_upload($file_id, $post_id, $post_data = array(), $overrides = array( 'test_form' => false )) {
$time = current_time('mysql');
if ( $post = get_post($post_id) ) {
if ( substr( $post->post_date, 0, 4 ) > 0 )
$time = $post->post_date;
}
$name = $_FILES[$file_id]['name'];
$file = wp_handle_upload($_FILES[$file_id], $overrides, $time);
if ( isset($file['error']) )
return new WP_Error( 'upload_error', $file['error'] );
$name_parts = pathinfo($name);
$name = trim( substr( $name, 0, -(1 + strlen($name_parts['extension'])) ) );
$url = $file['url'];
$type = $file['type'];
$file = $file['file'];
$title = $name;
$content = '';
// use image exif/iptc data for title and caption defaults if possible
if ( $image_meta = @wp_read_image_metadata($file) ) {
if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) )
$title = $image_meta['title'];
if ( trim( $image_meta['caption'] ) )
$content = $image_meta['caption'];
}
// Construct the attachment array
$attachment = array_merge( array(
'post_mime_type' => $type,
'guid' => $url,
'post_parent' => $post_id,
'post_title' => $title,
'post_content' => $content,
), $post_data );
// This should never be set as it would then overwrite an existing attachment.
if ( isset( $attachment['ID'] ) )
unset( $attachment['ID'] );
// Save the data
$id = wp_insert_attachment($attachment, $file, $post_id);
if ( !is_wp_error($id) ) {
wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
}
return $id;
}
/**
* This handles a sideloaded file in the same way as an uploaded file is handled by {@link media_handle_upload()}
*
* @since 2.6.0
*
* @param array $file_array Array similar to a {@link $_FILES} upload array
* @param int $post_id The post ID the media is associated with
* @param string $desc Description of the sideloaded file
* @param array $post_data allows you to overwrite some of the attachment
* @return int|object The ID of the attachment or a WP_Error on failure
*/
function media_handle_sideload($file_array, $post_id, $desc = null, $post_data = array()) {
$overrides = array('test_form'=>false);
$time = current_time( 'mysql' );
if ( $post = get_post( $post_id ) ) {
if ( substr( $post->post_date, 0, 4 ) > 0 )
$time = $post->post_date;
}
$file = wp_handle_sideload( $file_array, $overrides, $time );
if ( isset($file['error']) )
return new WP_Error( 'upload_error', $file['error'] );
$url = $file['url'];
$type = $file['type'];
$file = $file['file'];
$title = preg_replace('/\.[^.]+$/', '', basename($file));
$content = '';
// use image exif/iptc data for title and caption defaults if possible
if ( $image_meta = @wp_read_image_metadata($file) ) {
if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) )
$title = $image_meta['title'];
if ( trim( $image_meta['caption'] ) )
$content = $image_meta['caption'];
}
if ( isset( $desc ) )
$title = $desc;
// Construct the attachment array
$attachment = array_merge( array(
'post_mime_type' => $type,
'guid' => $url,
'post_parent' => $post_id,
'post_title' => $title,
'post_content' => $content,
), $post_data );
// This should never be set as it would then overwrite an existing attachment.
if ( isset( $attachment['ID'] ) )
unset( $attachment['ID'] );
// Save the attachment metadata
$id = wp_insert_attachment($attachment, $file, $post_id);
if ( !is_wp_error($id) )
wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
return $id;
}
/**
* Adds the iframe to display content for the media upload page
*
* @since 2.5.0
*
* @param array $content_func
*/
function wp_iframe($content_func /* ... */) {
_wp_admin_html_begin();
?>
<title><?php bloginfo('name') ?> › <?php _e('Uploads'); ?> — <?php _e('WordPress'); ?></title>
<?php
wp_enqueue_style( 'colors' );
// Check callback name for 'media'
if ( ( is_array( $content_func ) && ! empty( $content_func[1] ) && 0 === strpos( (string) $content_func[1], 'media' ) )
|| ( ! is_array( $content_func ) && 0 === strpos( $content_func, 'media' ) ) )
wp_enqueue_style( 'media' );
wp_enqueue_style( 'ie' );
?>
<script type="text/javascript">
//<![CDATA[
addLoadEvent = function(func){if(typeof jQuery!="undefined")jQuery(document).ready(func);else if(typeof wpOnload!='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
var userSettings = {'url':'<?php echo SITECOOKIEPATH; ?>','uid':'<?php if ( ! isset($current_user) ) $current_user = wp_get_current_user(); echo $current_user->ID; ?>','time':'<?php echo time(); ?>'};
var ajaxurl = '<?php echo admin_url( 'admin-ajax.php', 'relative' ); ?>', pagenow = 'media-upload-popup', adminpage = 'media-upload-popup',
isRtl = <?php echo (int) is_rtl(); ?>;
//]]>
</script>
<?php
do_action('admin_enqueue_scripts', 'media-upload-popup');
do_action('admin_print_styles-media-upload-popup');
do_action('admin_print_styles');
do_action('admin_print_scripts-media-upload-popup');
do_action('admin_print_scripts');
do_action('admin_head-media-upload-popup');
do_action('admin_head');
if ( is_string($content_func) )
do_action( "admin_head_{$content_func}" );
?>
</head>
<body<?php if ( isset($GLOBALS['body_id']) ) echo ' id="' . $GLOBALS['body_id'] . '"'; ?> class="no-js">
<script type="text/javascript">
document.body.className = document.body.className.replace('no-js', 'js');
</script>
<?php
$args = func_get_args();
$args = array_slice($args, 1);
call_user_func_array($content_func, $args);
do_action('admin_print_footer_scripts');
?>
<script type="text/javascript">if(typeof wpOnload=='function')wpOnload();</script>
</body>
</html>
<?php
}
/**
* Adds the media button to the editor
*
* @since 2.5.0
*
* @param string $editor_id
*/
function media_buttons($editor_id = 'content') {
wp_enqueue_script( 'media-upload' );
wp_enqueue_style( 'media-views' );
wp_plupload_default_settings();
add_action( 'admin_footer', 'wp_print_media_templates' );
$context = apply_filters('media_buttons_context', __('Upload/Insert %s'));
$img = '<span class="wp-media-buttons-icon"></span>';
echo '<a href="#" class="button insert-media add_media" data-editor="' . esc_attr( $editor_id ) . '" title="' . esc_attr__( 'Add Media' ) . '">' . $img . ' Beta Media</a>';
echo '<a href="' . esc_url( get_upload_iframe_src() ) . '" class="thickbox add_media" id="' . esc_attr( $editor_id ) . '-add_media" title="' . esc_attr__( 'Add Media' ) . '" onclick="return false;">' . sprintf( $context, $img ) . '</a>';
}
add_action( 'media_buttons', 'media_buttons' );
function get_upload_iframe_src( $type = null, $post_id = null, $tab = null ) {
global $post_ID;
if ( empty( $post_id ) )
$post_id = $post_ID;
$upload_iframe_src = add_query_arg( 'post_id', (int) $post_id, admin_url('media-upload.php') );
if ( $type && 'media' != $type )
$upload_iframe_src = add_query_arg('type', $type, $upload_iframe_src);
if ( ! empty( $tab ) )
$upload_iframe_src = add_query_arg('tab', $tab, $upload_iframe_src);
$upload_iframe_src = apply_filters($type . '_upload_iframe_src', $upload_iframe_src);
return add_query_arg('TB_iframe', true, $upload_iframe_src);
}
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @return mixed void|object WP_Error on failure
*/
function media_upload_form_handler() {
check_admin_referer('media-form');
$errors = null;
if ( isset($_POST['send']) ) {
$keys = array_keys($_POST['send']);
$send_id = (int) array_shift($keys);
}
if ( !empty($_POST['attachments']) ) foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {
$post = $_post = get_post($attachment_id, ARRAY_A);
$post_type_object = get_post_type_object( $post[ 'post_type' ] );
if ( !current_user_can( $post_type_object->cap->edit_post, $attachment_id ) )
continue;
if ( isset($attachment['post_content']) )
$post['post_content'] = $attachment['post_content'];
if ( isset($attachment['post_title']) )
$post['post_title'] = $attachment['post_title'];
if ( isset($attachment['post_excerpt']) )
$post['post_excerpt'] = $attachment['post_excerpt'];
if ( isset($attachment['menu_order']) )
$post['menu_order'] = $attachment['menu_order'];
if ( isset($send_id) && $attachment_id == $send_id ) {
if ( isset($attachment['post_parent']) )
$post['post_parent'] = $attachment['post_parent'];
}
$post = apply_filters('attachment_fields_to_save', $post, $attachment);
if ( isset($attachment['image_alt']) ) {
$image_alt = get_post_meta($attachment_id, '_wp_attachment_image_alt', true);
if ( $image_alt != stripslashes($attachment['image_alt']) ) {
$image_alt = wp_strip_all_tags( stripslashes($attachment['image_alt']), true );
// update_meta expects slashed
update_post_meta( $attachment_id, '_wp_attachment_image_alt', addslashes($image_alt) );
}
}
if ( isset($post['errors']) ) {
$errors[$attachment_id] = $post['errors'];
unset($post['errors']);
}
if ( $post != $_post )
wp_update_post($post);
foreach ( get_attachment_taxonomies($post) as $t ) {
if ( isset($attachment[$t]) )
wp_set_object_terms($attachment_id, array_map('trim', preg_split('/,+/', $attachment[$t])), $t, false);
}
}
if ( isset($_POST['insert-gallery']) || isset($_POST['update-gallery']) ) { ?>
<script type="text/javascript">
/* <![CDATA[ */
var win = window.dialogArguments || opener || parent || top;
win.tb_remove();
/* ]]> */
</script>
<?php
exit;
}
if ( isset($send_id) ) {
$attachment = stripslashes_deep( $_POST['attachments'][$send_id] );
$html = isset( $attachment['post_title'] ) ? $attachment['post_title'] : '';
if ( !empty($attachment['url']) ) {
$rel = '';
if ( strpos($attachment['url'], 'attachment_id') || get_attachment_link($send_id) == $attachment['url'] )
$rel = " rel='attachment wp-att-" . esc_attr($send_id) . "'";
$html = "<a href='{$attachment['url']}'$rel>$html</a>";
}
$html = apply_filters('media_send_to_editor', $html, $send_id, $attachment);
return media_send_to_editor($html);
}
return $errors;
}
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @return mixed
*/
function wp_media_upload_handler() {
$errors = array();
$id = 0;
if ( isset($_POST['html-upload']) && !empty($_FILES) ) {
check_admin_referer('media-form');
// Upload File button was clicked
$id = media_handle_upload('async-upload', $_REQUEST['post_id']);
unset($_FILES);
if ( is_wp_error($id) ) {
$errors['upload_error'] = $id;
$id = false;
}
}
if ( !empty($_POST['insertonlybutton']) ) {
$src = $_POST['src'];
if ( !empty($src) && !strpos($src, '://') )
$src = "http://$src";
if ( isset( $_POST['media_type'] ) && 'image' != $_POST['media_type'] ) {
$title = esc_html( stripslashes( $_POST['title'] ) );
if ( empty( $title ) )
$title = esc_html( basename( $src ) );
if ( $title && $src )
$html = "<a href='" . esc_url($src) . "'>$title</a>";
$type = 'file';
if ( ( $ext = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src ) ) && ( $ext_type = wp_ext2type( $ext ) )
&& ( 'audio' == $ext_type || 'video' == $ext_type ) )
$type = $ext_type;
$html = apply_filters( $type . '_send_to_editor_url', $html, esc_url_raw( $src ), $title );
} else {
$align = '';
$alt = esc_attr( stripslashes( $_POST['alt'] ) );
if ( isset($_POST['align']) ) {
$align = esc_attr( stripslashes( $_POST['align'] ) );
$class = " class='align$align'";
}
if ( !empty($src) )
$html = "<img src='" . esc_url($src) . "' alt='$alt'$class />";
$html = apply_filters( 'image_send_to_editor_url', $html, esc_url_raw( $src ), $alt, $align );
}
return media_send_to_editor($html);
}
if ( !empty($_POST) ) {
$return = media_upload_form_handler();
if ( is_string($return) )
return $return;
if ( is_array($return) )
$errors = $return;
}
if ( isset($_POST['save']) ) {
$errors['upload_notice'] = __('Saved.');
return media_upload_gallery();
}
if ( isset($_GET['tab']) && $_GET['tab'] == 'type_url' ) {
$type = 'image';
if ( isset( $_GET['type'] ) && in_array( $_GET['type'], array( 'video', 'audio', 'file' ) ) )
$type = $_GET['type'];
return wp_iframe( 'media_upload_type_url_form', $type, $errors, $id );
}
return wp_iframe( 'media_upload_type_form', 'image', $errors, $id );
}
/**
* Download an image from the specified URL and attach it to a post.
*
* @since 2.6.0
*
* @param string $file The URL of the image to download
* @param int $post_id The post ID the media is to be associated with
* @param string $desc Optional. Description of the image
* @return string|WP_Error Populated HTML img tag on success
*/
function media_sideload_image($file, $post_id, $desc = null) {
if ( ! empty($file) ) {
// Download file to temp location
$tmp = download_url( $file );
// Set variables for storage
// fix file filename for query strings
preg_match( '/[^\?]+\.(jpe?g|jpe|gif|png)\b/i', $file, $matches );
$file_array['name'] = basename($matches[0]);
$file_array['tmp_name'] = $tmp;
// If error storing temporarily, unlink
if ( is_wp_error( $tmp ) ) {
@unlink($file_array['tmp_name']);
$file_array['tmp_name'] = '';
}
// do the validation and storage stuff
$id = media_handle_sideload( $file_array, $post_id, $desc );
// If error storing permanently, unlink
if ( is_wp_error($id) ) {
@unlink($file_array['tmp_name']);
return $id;
}
$src = wp_get_attachment_url( $id );
}
// Finally check to make sure the file has been saved, then return the html
if ( ! empty($src) ) {
$alt = isset($desc) ? esc_attr($desc) : '';
$html = "<img src='$src' alt='$alt' />";
return $html;
}
}
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @return unknown
*/
function media_upload_gallery() {
$errors = array();
if ( !empty($_POST) ) {
$return = media_upload_form_handler();
if ( is_string($return) )
return $return;
if ( is_array($return) )
$errors = $return;
}
wp_enqueue_script('admin-gallery');
return wp_iframe( 'media_upload_gallery_form', $errors );
}
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @return unknown
*/
function media_upload_library() {
$errors = array();
if ( !empty($_POST) ) {
$return = media_upload_form_handler();
if ( is_string($return) )
return $return;
if ( is_array($return) )
$errors = $return;
}
return wp_iframe( 'media_upload_library_form', $errors );
}
/**
* Retrieve HTML for the image alignment radio buttons with the specified one checked.
*
* @since 2.7.0
*
* @param object $post
* @param string $checked
* @return string
*/
function image_align_input_fields( $post, $checked = '' ) {
if ( empty($checked) )
$checked = get_user_setting('align', 'none');
$alignments = array('none' => __('None'), 'left' => __('Left'), 'center' => __('Center'), 'right' => __('Right'));
if ( !array_key_exists( (string) $checked, $alignments ) )
$checked = 'none';
$out = array();
foreach ( $alignments as $name => $label ) {
$name = esc_attr($name);
$out[] = "<input type='radio' name='attachments[{$post->ID}][align]' id='image-align-{$name}-{$post->ID}' value='$name'".
( $checked == $name ? " checked='checked'" : "" ) .
" /><label for='image-align-{$name}-{$post->ID}' class='align image-align-{$name}-label'>$label</label>";
}
return join("\n", $out);
}
/**
* Retrieve HTML for the size radio buttons with the specified one checked.
*
* @since 2.7.0
*
* @param object $post
* @param bool|string $check
* @return array
*/
function image_size_input_fields( $post, $check = '' ) {
// get a list of the actual pixel dimensions of each possible intermediate version of this image
$size_names = apply_filters( 'image_size_names_choose', array('thumbnail' => __('Thumbnail'), 'medium' => __('Medium'), 'large' => __('Large'), 'full' => __('Full Size')) );
if ( empty($check) )
$check = get_user_setting('imgsize', 'medium');
foreach ( $size_names as $size => $label ) {
$downsize = image_downsize($post->ID, $size);
$checked = '';
// is this size selectable?
$enabled = ( $downsize[3] || 'full' == $size );
$css_id = "image-size-{$size}-{$post->ID}";
// if this size is the default but that's not available, don't select it
if ( $size == $check ) {
if ( $enabled )
$checked = " checked='checked'";
else
$check = '';
} elseif ( !$check && $enabled && 'thumbnail' != $size ) {
// if $check is not enabled, default to the first available size that's bigger than a thumbnail
$check = $size;
$checked = " checked='checked'";
}
$html = "<div class='image-size-item'><input type='radio' " . disabled( $enabled, false, false ) . "name='attachments[$post->ID][image-size]' id='{$css_id}' value='{$size}'$checked />";
$html .= "<label for='{$css_id}'>$label</label>";
// only show the dimensions if that choice is available
if ( $enabled )
$html .= " <label for='{$css_id}' class='help'>" . sprintf( "(%d × %d)", $downsize[1], $downsize[2] ). "</label>";
$html .= '</div>';
$out[] = $html;
}
return array(
'label' => __('Size'),
'input' => 'html',
'html' => join("\n", $out),
);
}
/**
* Retrieve HTML for the Link URL buttons with the default link type as specified.
*
* @since 2.7.0
*
* @param object $post
* @param string $url_type
* @return string
*/
function image_link_input_fields($post, $url_type = '') {
$file = wp_get_attachment_url($post->ID);
$link = get_attachment_link($post->ID);
if ( empty($url_type) )
$url_type = get_user_setting('urlbutton', 'post');
$url = '';
if ( $url_type == 'file' )
$url = $file;
elseif ( $url_type == 'post' )
$url = $link;
return "
<input type='text' class='text urlfield' name='attachments[$post->ID][url]' value='" . esc_attr($url) . "' /><br />
<button type='button' class='button urlnone' data-link-url=''>" . __('None') . "</button>
<button type='button' class='button urlfile' data-link-url='" . esc_attr($file) . "'>" . __('File URL') . "</button>
<button type='button' class='button urlpost' data-link-url='" . esc_attr($link) . "'>" . __('Attachment Post URL') . "</button>
";
}
function wp_caption_input_textarea($edit_post) {
// post data is already escaped
$name = "attachments[{$edit_post->ID}][post_excerpt]";
return '<textarea name="' . $name . '" id="' . $name . '">' . $edit_post->post_excerpt . '</textarea>';
}
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @param array $form_fields
* @param object $post
* @return array
*/
function image_attachment_fields_to_edit($form_fields, $post) {
if ( substr($post->post_mime_type, 0, 5) == 'image' ) {
$alt = get_post_meta($post->ID, '_wp_attachment_image_alt', true);
if ( empty($alt) )
$alt = '';
$form_fields['post_title']['required'] = true;
$form_fields['image_alt'] = array(
'value' => $alt,
'label' => __('Alternative Text'),
'helps' => __('Alt text for the image, e.g. “The Mona Lisa”')
);
$form_fields['align'] = array(
'label' => __('Alignment'),
'input' => 'html',
'html' => image_align_input_fields($post, get_option('image_default_align')),
);
$form_fields['image-size'] = image_size_input_fields( $post, get_option('image_default_size', 'medium') );
} else {
unset( $form_fields['image_alt'] );
}
return $form_fields;
}
add_filter('attachment_fields_to_edit', 'image_attachment_fields_to_edit', 10, 2);
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @param array $form_fields
* @param object $post {@internal $post not used}}
* @return array
*/
function media_single_attachment_fields_to_edit( $form_fields, $post ) {
unset($form_fields['url'], $form_fields['align'], $form_fields['image-size']);
return $form_fields;
}
/**
* {@internal Missing Short Description}}
*
* @since 2.8.0
*
* @param array $form_fields
* @param object $post {@internal $post not used}}
* @return array
*/
function media_post_single_attachment_fields_to_edit( $form_fields, $post ) {
unset($form_fields['image_url']);
return $form_fields;
}
/**
* Filters input from media_upload_form_handler() and assigns a default
* post_title from the file name if none supplied.
*
* Illustrates the use of the attachment_fields_to_save filter
* which can be used to add default values to any field before saving to DB.
*
* @since 2.5.0
*
* @param object $post
* @param array $attachment {@internal $attachment not used}}
* @return array
*/
function image_attachment_fields_to_save($post, $attachment) {
if ( substr($post['post_mime_type'], 0, 5) == 'image' ) {
if ( strlen(trim($post['post_title'])) == 0 ) {
$post['post_title'] = preg_replace('/\.\w+$/', '', basename($post['guid']));
$post['errors']['post_title']['errors'][] = __('Empty Title filled from filename.');
}
}
return $post;
}
add_filter('attachment_fields_to_save', 'image_attachment_fields_to_save', 10, 2);
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @param string $html
* @param integer $attachment_id
* @param array $attachment
* @return array
*/
function image_media_send_to_editor($html, $attachment_id, $attachment) {
$post = get_post($attachment_id);
if ( substr($post->post_mime_type, 0, 5) == 'image' ) {
$url = $attachment['url'];
$align = !empty($attachment['align']) ? $attachment['align'] : 'none';
$size = !empty($attachment['image-size']) ? $attachment['image-size'] : 'medium';
$alt = !empty($attachment['image_alt']) ? $attachment['image_alt'] : '';
$rel = ( $url == get_attachment_link($attachment_id) );
return get_image_send_to_editor($attachment_id, $attachment['post_excerpt'], $attachment['post_title'], $align, $url, $rel, $size, $alt);
}
return $html;
}
add_filter('media_send_to_editor', 'image_media_send_to_editor', 10, 3);
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @param object $post
* @param array $errors
* @return array
*/
function get_attachment_fields_to_edit($post, $errors = null) {
if ( is_int($post) )
$post = get_post($post);
if ( is_array($post) )
$post = new WP_Post( (object) $post );
$image_url = wp_get_attachment_url($post->ID);
$edit_post = sanitize_post($post, 'edit');
$form_fields = array(
'post_title' => array(
'label' => __('Title'),
'value' => $edit_post->post_title
),
'image_alt' => array(),
'post_excerpt' => array(
'label' => __('Caption'),
'input' => 'html',
'html' => wp_caption_input_textarea($edit_post)
),
'post_content' => array(
'label' => __('Description'),
'value' => $edit_post->post_content,
'input' => 'textarea'
),
'url' => array(
'label' => __('Link URL'),
'input' => 'html',
'html' => image_link_input_fields($post, get_option('image_default_link_type')),
'helps' => __('Enter a link URL or click above for presets.')
),
'menu_order' => array(
'label' => __('Order'),
'value' => $edit_post->menu_order
),
'image_url' => array(
'label' => __('File URL'),
'input' => 'html',
'html' => "<input type='text' class='text urlfield' readonly='readonly' name='attachments[$post->ID][url]' value='" . esc_attr($image_url) . "' /><br />",
'value' => wp_get_attachment_url($post->ID),
'helps' => __('Location of the uploaded file.')
)
);
foreach ( get_attachment_taxonomies($post) as $taxonomy ) {
$t = (array) get_taxonomy($taxonomy);
if ( ! $t['public'] || ! $t['show_ui'] )
continue;
if ( empty($t['label']) )
$t['label'] = $taxonomy;
if ( empty($t['args']) )
$t['args'] = array();
$terms = get_object_term_cache($post->ID, $taxonomy);
if ( false === $terms )
$terms = wp_get_object_terms($post->ID, $taxonomy, $t['args']);
$values = array();
foreach ( $terms as $term )
$values[] = $term->slug;
$t['value'] = join(', ', $values);
$form_fields[$taxonomy] = $t;
}
// Merge default fields with their errors, so any key passed with the error (e.g. 'error', 'helps', 'value') will replace the default