/
media.php
3118 lines (2667 loc) · 98.1 KB
/
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')
);
/**
* Filter the available tabs in the legacy (pre-3.5.0) media popup.
*
* @since 2.5.0
*
* @param array $_default_tabs An array of media tabs.
*/
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
*
* @global wpdb $wpdb
*
* @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;
}
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @global string $redir_tab
*/
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 {
/** This filter is documented in wp-admin/media-upload.php */
$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, '', $align, $size);
$rel = $rel ? ' rel="attachment wp-att-' . esc_attr($id).'"' : '';
if ( $url )
$html = '<a href="' . esc_attr($url) . "\"$rel>$html</a>";
/**
* Filter the image HTML markup to send to the editor.
*
* @since 2.5.0
*
* @param string $html The image HTML markup to send.
* @param int $id The attachment id.
* @param string $caption The image caption.
* @param string $title The image title.
* @param string $align The image alignment.
* @param string $url The image source URL.
* @param string $size The image size.
* @param string $alt The image alternative, or alt, text.
*/
$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 = '' ) {
/**
* Filter the caption text.
*
* Note: If the caption text is empty, the caption shortcode will not be appended
* to the image HTML when inserted into the editor.
*
* Passing an empty value also prevents the {@see 'image_add_caption_shortcode'}
* filter from being evaluated at the end of {@see image_add_caption()}.
*
* @since 4.1.0
*
* @param string $caption The original caption text.
* @param int $id The attachment ID.
*/
$caption = apply_filters( 'image_add_caption_text', $caption, $id );
/**
* Filter whether to disable captions.
*
* Prevents image captions from being appended to image HTML when inserted into the editor.
*
* @since 2.6.0
*
* @param bool $bool Whether to disable appending captions. Returning true to the filter
* will disable captions. Default empty string.
*/
if ( empty($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]';
/**
* Filter the image HTML markup including the caption shortcode.
*
* @since 2.6.0
*
* @param string $shcode The image HTML markup with caption shortcode.
* @param string $html The image HTML markup.
*/
return apply_filters( 'image_add_caption_shortcode', $shcode, $html );
}
/**
* 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">
var win = window.dialogArguments || opener || parent || top;
win.send_to_editor('<?php echo addslashes($html); ?>');
</script>
<?php
exit;
}
/**
* Save a file submitted from a POST request and create an attachment post for it.
*
* @since 2.5.0
*
* @param string $file_id Index of the {@link $_FILES} array that the file was sent. Required.
* @param int $post_id The post ID of a post to attach the media item to. Required, but can
* be set to 0, creating a media item that has no relationship to a post.
* @param array $post_data Overwrite some of the attachment. Optional.
* @param array $overrides Override the {@link wp_handle_upload()} behavior. Optional.
* @return int|WP_Error ID of the attachment or a WP_Error object on failure.
*/
function media_handle_upload($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 = '';
$excerpt = '';
if ( preg_match( '#^audio#', $type ) ) {
$meta = wp_read_audio_metadata( $file );
if ( ! empty( $meta['title'] ) ) {
$title = $meta['title'];
}
if ( ! empty( $title ) ) {
if ( ! empty( $meta['album'] ) && ! empty( $meta['artist'] ) ) {
/* translators: 1: audio track title, 2: album title, 3: artist name */
$content .= sprintf( __( '"%1$s" from %2$s by %3$s.' ), $title, $meta['album'], $meta['artist'] );
} elseif ( ! empty( $meta['album'] ) ) {
/* translators: 1: audio track title, 2: album title */
$content .= sprintf( __( '"%1$s" from %2$s.' ), $title, $meta['album'] );
} elseif ( ! empty( $meta['artist'] ) ) {
/* translators: 1: audio track title, 2: artist name */
$content .= sprintf( __( '"%1$s" by %2$s.' ), $title, $meta['artist'] );
} else {
$content .= sprintf( __( '"%s".' ), $title );
}
} elseif ( ! empty( $meta['album'] ) ) {
if ( ! empty( $meta['artist'] ) ) {
/* translators: 1: audio album title, 2: artist name */
$content .= sprintf( __( '%1$s by %2$s.' ), $meta['album'], $meta['artist'] );
} else {
$content .= $meta['album'] . '.';
}
} elseif ( ! empty( $meta['artist'] ) ) {
$content .= $meta['artist'] . '.';
}
if ( ! empty( $meta['year'] ) )
$content .= ' ' . sprintf( __( 'Released: %d.' ), $meta['year'] );
if ( ! empty( $meta['track_number'] ) ) {
$track_number = explode( '/', $meta['track_number'] );
if ( isset( $track_number[1] ) )
$content .= ' ' . sprintf( __( 'Track %1$s of %2$s.' ), number_format_i18n( $track_number[0] ), number_format_i18n( $track_number[1] ) );
else
$content .= ' ' . sprintf( __( 'Track %1$s.' ), number_format_i18n( $track_number[0] ) );
}
if ( ! empty( $meta['genre'] ) )
$content .= ' ' . sprintf( __( 'Genre: %s.' ), $meta['genre'] );
// Use image exif/iptc data for title and caption defaults if possible.
} elseif ( 0 === strpos( $type, 'image/' ) && $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'] ) ) {
$excerpt = $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_excerpt' => $excerpt,
), $post_data );
// This should never be set as it would then overwrite an existing attachment.
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.
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
*
* @global int $body_id
*
* @param string|callable $content_func
*/
function wp_iframe($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">
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 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
/** This action is documented in wp-admin/admin-header.php */
do_action( 'admin_enqueue_scripts', 'media-upload-popup' );
/**
* Fires when admin styles enqueued for the legacy (pre-3.5.0) media upload popup are printed.
*
* @since 2.9.0
*/
do_action( 'admin_print_styles-media-upload-popup' );
/** This action is documented in wp-admin/admin-header.php */
do_action( 'admin_print_styles' );
/**
* Fires when admin scripts enqueued for the legacy (pre-3.5.0) media upload popup are printed.
*
* @since 2.9.0
*/
do_action( 'admin_print_scripts-media-upload-popup' );
/** This action is documented in wp-admin/admin-header.php */
do_action( 'admin_print_scripts' );
/**
* Fires when scripts enqueued for the admin header for the legacy (pre-3.5.0)
* media upload popup are printed.
*
* @since 2.9.0
*/
do_action( 'admin_head-media-upload-popup' );
/** This action is documented in wp-admin/admin-header.php */
do_action( 'admin_head' );
if ( is_string( $content_func ) ) {
/**
* Fires in the admin header for each specific form tab in the legacy
* (pre-3.5.0) media upload popup.
*
* The dynamic portion of the hook, `$content_func`, refers to the form
* callback for the media upload type. Possible values include
* 'media_upload_type_form', 'media_upload_type_url_form', and
* 'media_upload_library_form'.
*
* @since 2.5.0
*/
do_action( "admin_head_{$content_func}" );
}
?>
</head>
<body<?php if ( isset($GLOBALS['body_id']) ) echo ' id="' . $GLOBALS['body_id'] . '"'; ?> class="wp-core-ui 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);
/** This action is documented in wp-admin/admin-footer.php */
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
*
* @global int $post_ID
*
* @staticvar int $instance
*
* @param string $editor_id
*/
function media_buttons($editor_id = 'content') {
static $instance = 0;
$instance++;
$post = get_post();
if ( ! $post && ! empty( $GLOBALS['post_ID'] ) )
$post = $GLOBALS['post_ID'];
wp_enqueue_media( array(
'post' => $post
) );
$img = '<span class="wp-media-buttons-icon"></span> ';
$id_attribute = $instance === 1 ? ' id="insert-media-button"' : '';
printf( '<a href="#"%s class="button insert-media add_media" data-editor="%s" title="%s">%s</a>',
$id_attribute,
esc_attr( $editor_id ),
esc_attr__( 'Add Media' ),
$img . __( 'Add Media' )
);
/**
* Filter the legacy (pre-3.5.0) media buttons.
*
* @since 2.5.0
* @deprecated 3.5.0 Use 'media_buttons' action instead.
*
* @param string $string Media buttons context. Default empty.
*/
$legacy_filter = apply_filters( 'media_buttons_context', '' );
if ( $legacy_filter ) {
// #WP22559. Close <a> if a plugin started by closing <a> to open their own <a> tag.
if ( 0 === stripos( trim( $legacy_filter ), '</a>' ) )
$legacy_filter .= '</a>';
echo $legacy_filter;
}
}
/**
*
* @global int $post_ID
* @param string $type
* @param int $post_id
* @param string $tab
* @return string
*/
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, $upload_iframe_src);
/**
* Filter the upload iframe source URL for a specific media type.
*
* The dynamic portion of the hook name, `$type`, refers to the type
* of media uploaded.
*
* @since 3.0.0
*
* @param string $upload_iframe_src The upload iframe source URL by type.
*/
$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) reset( $keys );
}
if ( !empty($_POST['attachments']) ) foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {
$post = $_post = get_post($attachment_id, ARRAY_A);
if ( !current_user_can( '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'];
}
/**
* Filter the attachment fields to be saved.
*
* @since 2.5.0
*
* @see wp_get_attachment_metadata()
*
* @param WP_Post $post The WP_Post object.
* @param array $attachment An array of attachment metadata.
*/
$post = apply_filters( 'attachment_fields_to_save', $post, $attachment );
if ( isset($attachment['image_alt']) ) {
$image_alt = wp_unslash( $attachment['image_alt'] );
if ( $image_alt != get_post_meta($attachment_id, '_wp_attachment_image_alt', true) ) {
$image_alt = wp_strip_all_tags( $image_alt, true );
// Update_meta expects slashed.
update_post_meta( $attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
}
}
if ( isset($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($_POST['update-gallery']) ) { ?>
<script type="text/javascript">
var win = window.dialogArguments || opener || parent || top;
win.tb_remove();
</script>
<?php
exit;
}
if ( isset($send_id) ) {
$attachment = wp_unslash( $_POST['attachments'][$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>";
}
/**
* Filter the HTML markup for a media item sent to the editor.
*
* @since 2.5.0
*
* @see wp_get_attachment_metadata()
*
* @param string $html HTML markup for a media item sent to the editor.
* @param int $send_id The first key from the $_POST['send'] data.
* @param array $attachment Array of attachment metadata.
*/
$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 null|string
*/
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( wp_unslash( $_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 = $ext_type;
/**
* Filter the URL sent to the editor for a specific media type.
*
* The dynamic portion of the hook name, `$type`, refers to the type
* of media being sent.
*
* @since 3.3.0
*
* @param string $html HTML markup sent to the editor.
* @param string $src Media source URL.
* @param string $title Media title.
*/
$html = apply_filters( $type . '_send_to_editor_url', $html, esc_url_raw( $src ), $title );
} else {
$align = '';
$alt = esc_attr( wp_unslash( $_POST['alt'] ) );
if ( isset($_POST['align']) ) {
$align = esc_attr( wp_unslash( $_POST['align'] ) );
$class = " class='align$align'";
}
if ( !empty($src) )
$html = "<img src='" . esc_url($src) . "' alt='$alt'$class />";
/**
* Filter the image URL sent to the editor.
*
* @since 2.8.0
*
* @param string $html HTML markup sent to the editor for an image.
* @param string $src Image source URL.
* @param string $alt Image alternate, or alt, text.
* @param string $align The image alignment. Default 'alignnone'. Possible values include
* 'alignleft', 'aligncenter', 'alignright', 'alignnone'.
*/
$html = apply_filters( 'image_send_to_editor_url', $html, esc_url_raw( $src ), $alt, $align );
}
return media_send_to_editor($html);
}
if ( isset( $_POST['save'] ) ) {
$errors['upload_notice'] = __('Saved.');
return media_upload_gallery();
} elseif ( ! empty( $_POST ) ) {
$return = media_upload_form_handler();
if ( is_string($return) )
return $return;
if ( is_array($return) )
$errors = $return;
}
if ( isset($_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, $id );
}
/**
* Downloads an image from the specified URL and attaches it to a post.
*
* @since 2.6.0
* @since 4.2.0 Introduced the `$return` parameter.
*
* @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.
* @param string $return Optional. Accepts 'html' (image tag html) or 'src' (URL). Default 'html'.
* @return string|WP_Error Populated HTML img tag on success, WP_Error object otherwise.
*/
function media_sideload_image( $file, $post_id, $desc = null, $return = 'html' ) {
if ( ! empty( $file ) ) {
// Set variables for storage, fix file filename for query strings.
preg_match( '/[^\?]+\.(jpe?g|jpe|gif|png)\b/i', $file, $matches );
$file_array = array();
$file_array['name'] = basename( $matches[0] );
// Download file to temp location.
$file_array['tmp_name'] = download_url( $file );
// If error storing temporarily, return the error.
if ( is_wp_error( $file_array['tmp_name'] ) ) {
return $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 ) ) {
if ( $return === 'src' ) {
return $src;
}
$alt = isset( $desc ) ? esc_attr( $desc ) : '';
$html = "<img src='$src' alt='$alt' />";
return $html;
} else {
return new WP_Error( 'image_sideload_failed' );
}
}
/**
* {@internal Missing Short Description}}
*
* @since 2.5.0
*
* @return string|null
*/
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 string|null
*/
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 WP_Post $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 WP_Post $post
* @param bool|string $check
* @return array
*/
function image_size_input_fields( $post, $check = '' ) {
/**
* Filter the names and labels of the default image sizes.
*
* @since 3.3.0
*
* @param array $size_names Array of image sizes and their names. Default values
* include 'Thumbnail', 'Medium', 'Large', 'Full Size'.
*/
$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');
}
$out = array();
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 ) {