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/wp-admin/includes/media.php

https://bitbucket.org/Wallynm/iptb
PHP | 2105 lines | 2046 code | 19 blank | 40 comment | 13 complexity | 81a0c14bd10b6e4165bebebfe45592bc MD5 | raw file

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   1<?php
   2/**
   3 * WordPress Administration Media API.
   4 *
   5 * @package WordPress
   6 * @subpackage Administration
   7 */
   8
   9/**
  10 * {@internal Missing Short Description}}
  11 *
  12 * @since 2.5.0
  13 *
  14 * @return unknown
  15 */
  16function media_upload_tabs() {
  17	$_default_tabs = array(
  18		'type' => __('From Computer'), // handler action suffix => tab text
  19		'type_url' => __('From URL'),
  20		'gallery' => __('Gallery'),
  21		'library' => __('Media Library')
  22	);
  23
  24	return apply_filters('media_upload_tabs', $_default_tabs);
  25}
  26
  27/**
  28 * {@internal Missing Short Description}}
  29 *
  30 * @since 2.5.0
  31 *
  32 * @param unknown_type $tabs
  33 * @return unknown
  34 */
  35function update_gallery_tab($tabs) {
  36	global $wpdb;
  37
  38	if ( !isset($_REQUEST['post_id']) ) {
  39		unset($tabs['gallery']);
  40		return $tabs;
  41	}
  42
  43	$post_id = intval($_REQUEST['post_id']);
  44
  45	if ( $post_id )
  46		$attachments = intval( $wpdb->get_var( $wpdb->prepare( "SELECT count(*) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent = %d", $post_id ) ) );
  47
  48	if ( empty($attachments) ) {
  49		unset($tabs['gallery']);
  50		return $tabs;
  51	}
  52
  53	$tabs['gallery'] = sprintf(__('Gallery (%s)'), "<span id='attachments-count'>$attachments</span>");
  54
  55	return $tabs;
  56}
  57add_filter('media_upload_tabs', 'update_gallery_tab');
  58
  59/**
  60 * {@internal Missing Short Description}}
  61 *
  62 * @since 2.5.0
  63 */
  64function the_media_upload_tabs() {
  65	global $redir_tab, $is_iphone;
  66	$tabs = media_upload_tabs();
  67
  68	if ( $is_iphone ) {
  69		unset($tabs['type']);
  70		$default = 'type_url';
  71	} else {
  72		$default = 'type';
  73	}
  74
  75	if ( !empty($tabs) ) {
  76		echo "<ul id='sidemenu'>\n";
  77		if ( isset($redir_tab) && array_key_exists($redir_tab, $tabs) )
  78			$current = $redir_tab;
  79		elseif ( isset($_GET['tab']) && array_key_exists($_GET['tab'], $tabs) )
  80			$current = $_GET['tab'];
  81		else
  82			$current = apply_filters('media_upload_default_tab', $default);
  83
  84		foreach ( $tabs as $callback => $text ) {
  85			$class = '';
  86
  87			if ( $current == $callback )
  88				$class = " class='current'";
  89
  90			$href = add_query_arg(array('tab' => $callback, 's' => false, 'paged' => false, 'post_mime_type' => false, 'm' => false));
  91			$link = "<a href='" . esc_url($href) . "'$class>$text</a>";
  92			echo "\t<li id='" . esc_attr("tab-$callback") . "'>$link</li>\n";
  93		}
  94		echo "</ul>\n";
  95	}
  96}
  97
  98/**
  99 * {@internal Missing Short Description}}
 100 *
 101 * @since 2.5.0
 102 *
 103 * @param unknown_type $id
 104 * @param unknown_type $alt
 105 * @param unknown_type $title
 106 * @param unknown_type $align
 107 * @param unknown_type $url
 108 * @param unknown_type $rel
 109 * @param unknown_type $size
 110 * @return unknown
 111 */
 112function get_image_send_to_editor($id, $caption, $title, $align, $url='', $rel = false, $size='medium', $alt = '') {
 113
 114	$html = get_image_tag($id, $alt, $title, $align, $size);
 115
 116	$rel = $rel ? ' rel="attachment wp-att-' . esc_attr($id).'"' : '';
 117
 118	if ( $url )
 119		$html = '<a href="' . esc_attr($url) . "\"$rel>$html</a>";
 120
 121	$html = apply_filters( 'image_send_to_editor', $html, $id, $caption, $title, $align, $url, $size, $alt );
 122
 123	return $html;
 124}
 125
 126/**
 127 * {@internal Missing Short Description}}
 128 *
 129 * @since 2.6.0
 130 *
 131 * @param unknown_type $html
 132 * @param unknown_type $id
 133 * @param unknown_type $alt
 134 * @param unknown_type $title
 135 * @param unknown_type $align
 136 * @param unknown_type $url
 137 * @param unknown_type $size
 138 * @return unknown
 139 */
 140function image_add_caption( $html, $id, $caption, $title, $align, $url, $size, $alt = '' ) {
 141
 142	if ( empty($caption) || apply_filters( 'disable_captions', '' ) )
 143		return $html;
 144
 145	$id = ( 0 < (int) $id ) ? 'attachment_' . $id : '';
 146
 147	if ( ! preg_match( '/width="([0-9]+)/', $html, $matches ) )
 148		return $html;
 149
 150	$width = $matches[1];
 151
 152	$caption = str_replace(	array( '>',    '<',    '"',      "'" ),
 153							array( '&gt;', '&lt;', '&quot;', '&#039;' ),
 154							$caption
 155						  );
 156
 157	$html = preg_replace( '/(class=["\'][^\'"]*)align(none|left|right|center)\s?/', '$1', $html );
 158	if ( empty($align) )
 159		$align = 'none';
 160
 161	$shcode = '[caption id="' . $id . '" align="align' . $align
 162	. '" width="' . $width . '" caption="' . addslashes($caption) . '"]' . $html . '[/caption]';
 163
 164	return apply_filters( 'image_add_caption_shortcode', $shcode, $html );
 165}
 166add_filter( 'image_send_to_editor', 'image_add_caption', 20, 8 );
 167
 168/**
 169 * {@internal Missing Short Description}}
 170 *
 171 * @since 2.5.0
 172 *
 173 * @param unknown_type $html
 174 */
 175function media_send_to_editor($html) {
 176?>
 177<script type="text/javascript">
 178/* <![CDATA[ */
 179var win = window.dialogArguments || opener || parent || top;
 180win.send_to_editor('<?php echo addslashes($html); ?>');
 181/* ]]> */
 182</script>
 183<?php
 184	exit;
 185}
 186
 187/**
 188 * {@internal Missing Short Description}}
 189 *
 190 * This handles the file upload POST itself, creating the attachment post.
 191 *
 192 * @since 2.5.0
 193 *
 194 * @param string $file_id Index into the {@link $_FILES} array of the upload
 195 * @param int $post_id The post ID the media is associated with
 196 * @param array $post_data allows you to overwrite some of the attachment
 197 * @param array $overrides allows you to override the {@link wp_handle_upload()} behavior
 198 * @return int the ID of the attachment
 199 */
 200function media_handle_upload($file_id, $post_id, $post_data = array(), $overrides = array( 'test_form' => false )) {
 201
 202	$time = current_time('mysql');
 203	if ( $post = get_post($post_id) ) {
 204		if ( substr( $post->post_date, 0, 4 ) > 0 )
 205			$time = $post->post_date;
 206	}
 207
 208	$name = $_FILES[$file_id]['name'];
 209	$file = wp_handle_upload($_FILES[$file_id], $overrides, $time);
 210
 211	if ( isset($file['error']) )
 212		return new WP_Error( 'upload_error', $file['error'] );
 213
 214	$name_parts = pathinfo($name);
 215	$name = trim( substr( $name, 0, -(1 + strlen($name_parts['extension'])) ) );
 216
 217	$url = $file['url'];
 218	$type = $file['type'];
 219	$file = $file['file'];
 220	$title = $name;
 221	$content = '';
 222
 223	// use image exif/iptc data for title and caption defaults if possible
 224	if ( $image_meta = @wp_read_image_metadata($file) ) {
 225		if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) )
 226			$title = $image_meta['title'];
 227		if ( trim( $image_meta['caption'] ) )
 228			$content = $image_meta['caption'];
 229	}
 230
 231	// Construct the attachment array
 232	$attachment = array_merge( array(
 233		'post_mime_type' => $type,
 234		'guid' => $url,
 235		'post_parent' => $post_id,
 236		'post_title' => $title,
 237		'post_content' => $content,
 238	), $post_data );
 239
 240	// This should never be set as it would then overwrite an existing attachment.
 241	if ( isset( $attachment['ID'] ) )
 242		unset( $attachment['ID'] );
 243
 244	// Save the data
 245	$id = wp_insert_attachment($attachment, $file, $post_id);
 246	if ( !is_wp_error($id) ) {
 247		wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
 248	}
 249
 250	return $id;
 251
 252}
 253
 254/**
 255 * This handles a sideloaded file in the same way as an uploaded file is handled by {@link media_handle_upload()}
 256 *
 257 * @since 2.6.0
 258 *
 259 * @param array $file_array Array similar to a {@link $_FILES} upload array
 260 * @param int $post_id The post ID the media is associated with
 261 * @param string $desc Description of the sideloaded file
 262 * @param array $post_data allows you to overwrite some of the attachment
 263 * @return int|object The ID of the attachment or a WP_Error on failure
 264 */
 265function media_handle_sideload($file_array, $post_id, $desc = null, $post_data = array()) {
 266	$overrides = array('test_form'=>false);
 267
 268	$file = wp_handle_sideload($file_array, $overrides);
 269	if ( isset($file['error']) )
 270		return new WP_Error( 'upload_error', $file['error'] );
 271
 272	$url = $file['url'];
 273	$type = $file['type'];
 274	$file = $file['file'];
 275	$title = preg_replace('/\.[^.]+$/', '', basename($file));
 276	$content = '';
 277
 278	// use image exif/iptc data for title and caption defaults if possible
 279	if ( $image_meta = @wp_read_image_metadata($file) ) {
 280		if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) )
 281			$title = $image_meta['title'];
 282		if ( trim( $image_meta['caption'] ) )
 283			$content = $image_meta['caption'];
 284	}
 285
 286	if ( isset( $desc ) )
 287		$title = $desc;
 288
 289	// Construct the attachment array
 290	$attachment = array_merge( array(
 291		'post_mime_type' => $type,
 292		'guid' => $url,
 293		'post_parent' => $post_id,
 294		'post_title' => $title,
 295		'post_content' => $content,
 296	), $post_data );
 297
 298	// This should never be set as it would then overwrite an existing attachment.
 299	if ( isset( $attachment['ID'] ) )
 300		unset( $attachment['ID'] );
 301
 302	// Save the attachment metadata
 303	$id = wp_insert_attachment($attachment, $file, $post_id);
 304	if ( !is_wp_error($id) )
 305		wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
 306
 307	return $id;
 308}
 309
 310/**
 311 * {@internal Missing Short Description}}
 312 *
 313 * Wrap iframe content (produced by $content_func) in a doctype, html head/body
 314 * etc any additional function args will be passed to content_func.
 315 *
 316 * @since 2.5.0
 317 *
 318 * @param unknown_type $content_func
 319 */
 320function wp_iframe($content_func /* ... */) {
 321	_wp_admin_html_begin();
 322?>
 323<title><?php bloginfo('name') ?> &rsaquo; <?php _e('Uploads'); ?> &#8212; <?php _e('WordPress'); ?></title>
 324<?php
 325
 326wp_enqueue_style( 'colors' );
 327// Check callback name for 'media'
 328if ( ( is_array( $content_func ) && ! empty( $content_func[1] ) && 0 === strpos( (string) $content_func[1], 'media' ) )
 329	|| ( ! is_array( $content_func ) && 0 === strpos( $content_func, 'media' ) ) )
 330	wp_enqueue_style( 'media' );
 331wp_enqueue_style( 'ie' );
 332?>
 333<script type="text/javascript">
 334//<![CDATA[
 335addLoadEvent = function(func){if(typeof jQuery!="undefined")jQuery(document).ready(func);else if(typeof wpOnload!='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
 336var userSettings = {'url':'<?php echo SITECOOKIEPATH; ?>','uid':'<?php if ( ! isset($current_user) ) $current_user = wp_get_current_user(); echo $current_user->ID; ?>','time':'<?php echo time(); ?>'};
 337var ajaxurl = '<?php echo admin_url('admin-ajax.php'); ?>', pagenow = 'media-upload-popup', adminpage = 'media-upload-popup',
 338isRtl = <?php echo (int) is_rtl(); ?>;
 339//]]>
 340</script>
 341<?php
 342do_action('admin_enqueue_scripts', 'media-upload-popup');
 343do_action('admin_print_styles-media-upload-popup');
 344do_action('admin_print_styles');
 345do_action('admin_print_scripts-media-upload-popup');
 346do_action('admin_print_scripts');
 347do_action('admin_head-media-upload-popup');
 348do_action('admin_head');
 349
 350if ( is_string($content_func) )
 351	do_action( "admin_head_{$content_func}" );
 352?>
 353</head>
 354<body<?php if ( isset($GLOBALS['body_id']) ) echo ' id="' . $GLOBALS['body_id'] . '"'; ?> class="no-js">
 355<script type="text/javascript">
 356document.body.className = document.body.className.replace('no-js', 'js');
 357</script>
 358<?php
 359	$args = func_get_args();
 360	$args = array_slice($args, 1);
 361	call_user_func_array($content_func, $args);
 362
 363	do_action('admin_print_footer_scripts');
 364?>
 365<script type="text/javascript">if(typeof wpOnload=='function')wpOnload();</script>
 366</body>
 367</html>
 368<?php
 369}
 370
 371/**
 372 * {@internal Missing Short Description}}
 373 *
 374 * @since 2.5.0
 375 */
 376function media_buttons($editor_id = 'content') {
 377	$context = apply_filters('media_buttons_context', __('Upload/Insert %s'));
 378
 379	$img = '<img src="' . esc_url( admin_url( 'images/media-button.png?ver=20111005' ) ) . '" width="15" height="15" />';
 380
 381	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, $img ) . '</a>';
 382}
 383add_action( 'media_buttons', 'media_buttons' );
 384
 385function _media_button($title, $icon, $type, $id) {
 386	return "<a href='" . esc_url( get_upload_iframe_src($type) ) . "' id='{$id}-add_{$type}' class='thickbox add_$type' title='" . esc_attr( $title ) . "'><img src='" . esc_url( admin_url( $icon ) ) . "' alt='$title' onclick='return false;' /></a>";
 387}
 388
 389function get_upload_iframe_src( $type = null ) {
 390	global $post_ID;
 391
 392	$uploading_iframe_ID = (int) $post_ID;
 393	$upload_iframe_src = add_query_arg( 'post_id', $uploading_iframe_ID, admin_url('media-upload.php') );
 394
 395	if ( $type && 'media' != $type )
 396		$upload_iframe_src = add_query_arg('type', $type, $upload_iframe_src);
 397
 398	$upload_iframe_src = apply_filters($type . '_upload_iframe_src', $upload_iframe_src);
 399
 400	return add_query_arg('TB_iframe', true, $upload_iframe_src);
 401}
 402
 403/**
 404 * {@internal Missing Short Description}}
 405 *
 406 * @since 2.5.0
 407 *
 408 * @return unknown
 409 */
 410function media_upload_form_handler() {
 411	check_admin_referer('media-form');
 412
 413	$errors = null;
 414
 415	if ( isset($_POST['send']) ) {
 416		$keys = array_keys($_POST['send']);
 417		$send_id = (int) array_shift($keys);
 418	}
 419
 420	if ( !empty($_POST['attachments']) ) foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {
 421		$post = $_post = get_post($attachment_id, ARRAY_A);
 422		$post_type_object = get_post_type_object( $post[ 'post_type' ] );
 423
 424		if ( !current_user_can( $post_type_object->cap->edit_post, $attachment_id ) )
 425			continue;
 426
 427		if ( isset($attachment['post_content']) )
 428			$post['post_content'] = $attachment['post_content'];
 429		if ( isset($attachment['post_title']) )
 430			$post['post_title'] = $attachment['post_title'];
 431		if ( isset($attachment['post_excerpt']) )
 432			$post['post_excerpt'] = $attachment['post_excerpt'];
 433		if ( isset($attachment['menu_order']) )
 434			$post['menu_order'] = $attachment['menu_order'];
 435
 436		if ( isset($send_id) && $attachment_id == $send_id ) {
 437			if ( isset($attachment['post_parent']) )
 438				$post['post_parent'] = $attachment['post_parent'];
 439		}
 440
 441		$post = apply_filters('attachment_fields_to_save', $post, $attachment);
 442
 443		if ( isset($attachment['image_alt']) ) {
 444			$image_alt = get_post_meta($attachment_id, '_wp_attachment_image_alt', true);
 445			if ( $image_alt != stripslashes($attachment['image_alt']) ) {
 446				$image_alt = wp_strip_all_tags( stripslashes($attachment['image_alt']), true );
 447				// update_meta expects slashed
 448				update_post_meta( $attachment_id, '_wp_attachment_image_alt', addslashes($image_alt) );
 449			}
 450		}
 451
 452		if ( isset($post['errors']) ) {
 453			$errors[$attachment_id] = $post['errors'];
 454			unset($post['errors']);
 455		}
 456
 457		if ( $post != $_post )
 458			wp_update_post($post);
 459
 460		foreach ( get_attachment_taxonomies($post) as $t ) {
 461			if ( isset($attachment[$t]) )
 462				wp_set_object_terms($attachment_id, array_map('trim', preg_split('/,+/', $attachment[$t])), $t, false);
 463		}
 464	}
 465
 466	if ( isset($_POST['insert-gallery']) || isset($_POST['update-gallery']) ) { ?>
 467		<script type="text/javascript">
 468		/* <![CDATA[ */
 469		var win = window.dialogArguments || opener || parent || top;
 470		win.tb_remove();
 471		/* ]]> */
 472		</script>
 473		<?php
 474		exit;
 475	}
 476
 477	if ( isset($send_id) ) {
 478		$attachment = stripslashes_deep( $_POST['attachments'][$send_id] );
 479
 480		$html = $attachment['post_title'];
 481		if ( !empty($attachment['url']) ) {
 482			$rel = '';
 483			if ( strpos($attachment['url'], 'attachment_id') || get_attachment_link($send_id) == $attachment['url'] )
 484				$rel = " rel='attachment wp-att-" . esc_attr($send_id) . "'";
 485			$html = "<a href='{$attachment['url']}'$rel>$html</a>";
 486		}
 487
 488		$html = apply_filters('media_send_to_editor', $html, $send_id, $attachment);
 489		return media_send_to_editor($html);
 490	}
 491
 492	return $errors;
 493}
 494
 495/**
 496 * {@internal Missing Short Description}}
 497 *
 498 * @since 2.5.0
 499 *
 500 * @return unknown
 501 */
 502function wp_media_upload_handler() {
 503	global $is_iphone;
 504
 505	$errors = array();
 506	$id = 0;
 507
 508	if ( isset($_POST['html-upload']) && !empty($_FILES) ) {
 509		check_admin_referer('media-form');
 510		// Upload File button was clicked
 511		$id = media_handle_upload('async-upload', $_REQUEST['post_id']);
 512		unset($_FILES);
 513		if ( is_wp_error($id) ) {
 514			$errors['upload_error'] = $id;
 515			$id = false;
 516		}
 517	}
 518
 519	if ( !empty($_POST['insertonlybutton']) ) {
 520		$src = $_POST['src'];
 521		if ( !empty($src) && !strpos($src, '://') )
 522			$src = "http://$src";
 523
 524		if ( isset( $_POST['media_type'] ) && 'image' != $_POST['media_type'] ) {
 525			$title = esc_html( stripslashes( $_POST['title'] ) );
 526			if ( empty( $title ) )
 527				$title = esc_html( basename( $src ) );
 528
 529			if ( $title && $src )
 530				$html = "<a href='" . esc_url($src) . "'>$title</a>";
 531
 532			$type = 'file';
 533			if ( ( $ext = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src ) ) && ( $ext_type = wp_ext2type( $ext ) )
 534				&& ( 'audio' == $ext_type || 'video' == $ext_type ) )
 535					$type = $ext_type;
 536
 537			$html = apply_filters( $type . '_send_to_editor_url', $html, esc_url_raw( $src ), $title );
 538		} else {
 539			$align = '';
 540			$alt = esc_attr( stripslashes( $_POST['alt'] ) );
 541			if ( isset($_POST['align']) ) {
 542				$align = esc_attr( stripslashes( $_POST['align'] ) );
 543				$class = " class='align$align'";
 544			}
 545			if ( !empty($src) )
 546				$html = "<img src='" . esc_url($src) . "' alt='$alt'$class />";
 547
 548			$html = apply_filters( 'image_send_to_editor_url', $html, esc_url_raw( $src ), $alt, $align );
 549		}
 550
 551		return media_send_to_editor($html);
 552	}
 553
 554	if ( !empty($_POST) ) {
 555		$return = media_upload_form_handler();
 556
 557		if ( is_string($return) )
 558			return $return;
 559		if ( is_array($return) )
 560			$errors = $return;
 561	}
 562
 563	if ( isset($_POST['save']) ) {
 564		$errors['upload_notice'] = __('Saved.');
 565		return media_upload_gallery();
 566	}
 567
 568	if ( isset($_GET['tab']) && $_GET['tab'] == 'type_url' ) {
 569		$type = 'image';
 570		if ( isset( $_GET['type'] ) && in_array( $_GET['type'], array( 'video', 'audio', 'file' ) ) )
 571			$type = $_GET['type'];
 572		return wp_iframe( 'media_upload_type_url_form', $type, $errors, $id );
 573	}
 574
 575	if ( $is_iphone )
 576		return wp_iframe( 'media_upload_type_url_form', 'image', $errors, $id );
 577	else
 578		return wp_iframe( 'media_upload_type_form', 'image', $errors, $id );
 579}
 580
 581/**
 582 * Download an image from the specified URL and attach it to a post.
 583 *
 584 * @since 2.6.0
 585 *
 586 * @param string $file The URL of the image to download
 587 * @param int $post_id The post ID the media is to be associated with
 588 * @param string $desc Optional. Description of the image
 589 * @return string|WP_Error Populated HTML img tag on success
 590 */
 591function media_sideload_image($file, $post_id, $desc = null) {
 592	if ( ! empty($file) ) {
 593		// Download file to temp location
 594		$tmp = download_url( $file );
 595
 596		// Set variables for storage
 597		// fix file filename for query strings
 598		preg_match('/[^\?]+\.(jpg|JPG|jpe|JPE|jpeg|JPEG|gif|GIF|png|PNG)/', $file, $matches);
 599		$file_array['name'] = basename($matches[0]);
 600		$file_array['tmp_name'] = $tmp;
 601
 602		// If error storing temporarily, unlink
 603		if ( is_wp_error( $tmp ) ) {
 604			@unlink($file_array['tmp_name']);
 605			$file_array['tmp_name'] = '';
 606		}
 607
 608		// do the validation and storage stuff
 609		$id = media_handle_sideload( $file_array, $post_id, $desc );
 610		// If error storing permanently, unlink
 611		if ( is_wp_error($id) ) {
 612			@unlink($file_array['tmp_name']);
 613			return $id;
 614		}
 615
 616		$src = wp_get_attachment_url( $id );
 617	}
 618
 619	// Finally check to make sure the file has been saved, then return the html
 620	if ( ! empty($src) ) {
 621		$alt = isset($desc) ? esc_attr($desc) : '';
 622		$html = "<img src='$src' alt='$alt' />";
 623		return $html;
 624	}
 625}
 626
 627/**
 628 * {@internal Missing Short Description}}
 629 *
 630 * @since 2.5.0
 631 *
 632 * @return unknown
 633 */
 634function media_upload_gallery() {
 635	$errors = array();
 636
 637	if ( !empty($_POST) ) {
 638		$return = media_upload_form_handler();
 639
 640		if ( is_string($return) )
 641			return $return;
 642		if ( is_array($return) )
 643			$errors = $return;
 644	}
 645
 646	wp_enqueue_script('admin-gallery');
 647	return wp_iframe( 'media_upload_gallery_form', $errors );
 648}
 649
 650/**
 651 * {@internal Missing Short Description}}
 652 *
 653 * @since 2.5.0
 654 *
 655 * @return unknown
 656 */
 657function media_upload_library() {
 658	$errors = array();
 659	if ( !empty($_POST) ) {
 660		$return = media_upload_form_handler();
 661
 662		if ( is_string($return) )
 663			return $return;
 664		if ( is_array($return) )
 665			$errors = $return;
 666	}
 667
 668	return wp_iframe( 'media_upload_library_form', $errors );
 669}
 670
 671/**
 672 * Retrieve HTML for the image alignment radio buttons with the specified one checked.
 673 *
 674 * @since 2.7.0
 675 *
 676 * @param unknown_type $post
 677 * @param unknown_type $checked
 678 * @return unknown
 679 */
 680function image_align_input_fields( $post, $checked = '' ) {
 681
 682	if ( empty($checked) )
 683		$checked = get_user_setting('align', 'none');
 684
 685	$alignments = array('none' => __('None'), 'left' => __('Left'), 'center' => __('Center'), 'right' => __('Right'));
 686	if ( !array_key_exists( (string) $checked, $alignments ) )
 687		$checked = 'none';
 688
 689	$out = array();
 690	foreach ( $alignments as $name => $label ) {
 691		$name = esc_attr($name);
 692		$out[] = "<input type='radio' name='attachments[{$post->ID}][align]' id='image-align-{$name}-{$post->ID}' value='$name'".
 693		 	( $checked == $name ? " checked='checked'" : "" ) .
 694			" /><label for='image-align-{$name}-{$post->ID}' class='align image-align-{$name}-label'>$label</label>";
 695	}
 696	return join("\n", $out);
 697}
 698
 699/**
 700 * Retrieve HTML for the size radio buttons with the specified one checked.
 701 *
 702 * @since 2.7.0
 703 *
 704 * @param unknown_type $post
 705 * @param unknown_type $check
 706 * @return unknown
 707 */
 708function image_size_input_fields( $post, $check = '' ) {
 709
 710		// get a list of the actual pixel dimensions of each possible intermediate version of this image
 711		$size_names = apply_filters( 'image_size_names_choose', array('thumbnail' => __('Thumbnail'), 'medium' => __('Medium'), 'large' => __('Large'), 'full' => __('Full Size')) );
 712
 713		if ( empty($check) )
 714			$check = get_user_setting('imgsize', 'medium');
 715
 716		foreach ( $size_names as $size => $label ) {
 717			$downsize = image_downsize($post->ID, $size);
 718			$checked = '';
 719
 720			// is this size selectable?
 721			$enabled = ( $downsize[3] || 'full' == $size );
 722			$css_id = "image-size-{$size}-{$post->ID}";
 723			// if this size is the default but that's not available, don't select it
 724			if ( $size == $check ) {
 725				if ( $enabled )
 726					$checked = " checked='checked'";
 727				else
 728					$check = '';
 729			} elseif ( !$check && $enabled && 'thumbnail' != $size ) {
 730				// if $check is not enabled, default to the first available size that's bigger than a thumbnail
 731				$check = $size;
 732				$checked = " checked='checked'";
 733			}
 734
 735			$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 />";
 736
 737			$html .= "<label for='{$css_id}'>$label</label>";
 738			// only show the dimensions if that choice is available
 739			if ( $enabled )
 740				$html .= " <label for='{$css_id}' class='help'>" . sprintf( "(%d&nbsp;&times;&nbsp;%d)", $downsize[1], $downsize[2] ). "</label>";
 741
 742			$html .= '</div>';
 743
 744			$out[] = $html;
 745		}
 746
 747		return array(
 748			'label' => __('Size'),
 749			'input' => 'html',
 750			'html'  => join("\n", $out),
 751		);
 752}
 753
 754/**
 755 * Retrieve HTML for the Link URL buttons with the default link type as specified.
 756 *
 757 * @since 2.7.0
 758 *
 759 * @param unknown_type $post
 760 * @param unknown_type $url_type
 761 * @return unknown
 762 */
 763function image_link_input_fields($post, $url_type = '') {
 764
 765	$file = wp_get_attachment_url($post->ID);
 766	$link = get_attachment_link($post->ID);
 767
 768	if ( empty($url_type) )
 769		$url_type = get_user_setting('urlbutton', 'post');
 770
 771	$url = '';
 772	if ( $url_type == 'file' )
 773		$url = $file;
 774	elseif ( $url_type == 'post' )
 775		$url = $link;
 776
 777	return "
 778	<input type='text' class='text urlfield' name='attachments[$post->ID][url]' value='" . esc_attr($url) . "' /><br />
 779	<button type='button' class='button urlnone' title=''>" . __('None') . "</button>
 780	<button type='button' class='button urlfile' title='" . esc_attr($file) . "'>" . __('File URL') . "</button>
 781	<button type='button' class='button urlpost' title='" . esc_attr($link) . "'>" . __('Attachment Post URL') . "</button>
 782";
 783}
 784
 785/**
 786 * {@internal Missing Short Description}}
 787 *
 788 * @since 2.5.0
 789 *
 790 * @param unknown_type $form_fields
 791 * @param unknown_type $post
 792 * @return unknown
 793 */
 794function image_attachment_fields_to_edit($form_fields, $post) {
 795	if ( substr($post->post_mime_type, 0, 5) == 'image' ) {
 796		$alt = get_post_meta($post->ID, '_wp_attachment_image_alt', true);
 797		if ( empty($alt) )
 798			$alt = '';
 799
 800		$form_fields['post_title']['required'] = true;
 801
 802		$form_fields['image_alt'] = array(
 803			'value' => $alt,
 804			'label' => __('Alternate Text'),
 805			'helps' => __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;')
 806		);
 807
 808		$form_fields['align'] = array(
 809			'label' => __('Alignment'),
 810			'input' => 'html',
 811			'html'  => image_align_input_fields($post, get_option('image_default_align')),
 812		);
 813
 814		$form_fields['image-size'] = image_size_input_fields( $post, get_option('image_default_size', 'medium') );
 815
 816	} else {
 817		unset( $form_fields['image_alt'] );
 818	}
 819	return $form_fields;
 820}
 821
 822add_filter('attachment_fields_to_edit', 'image_attachment_fields_to_edit', 10, 2);
 823
 824/**
 825 * {@internal Missing Short Description}}
 826 *
 827 * @since 2.5.0
 828 *
 829 * @param unknown_type $form_fields
 830 * @param unknown_type $post
 831 * @return unknown
 832 */
 833function media_single_attachment_fields_to_edit( $form_fields, $post ) {
 834	unset($form_fields['url'], $form_fields['align'], $form_fields['image-size']);
 835	return $form_fields;
 836}
 837
 838/**
 839 * {@internal Missing Short Description}}
 840 *
 841 * @since 2.8.0
 842 *
 843 * @param unknown_type $form_fields
 844 * @param unknown_type $post
 845 * @return unknown
 846 */
 847function media_post_single_attachment_fields_to_edit( $form_fields, $post ) {
 848	unset($form_fields['image_url']);
 849	return $form_fields;
 850}
 851
 852/**
 853 * {@internal Missing Short Description}}
 854 *
 855 * @since 2.5.0
 856 *
 857 * @param unknown_type $post
 858 * @param unknown_type $attachment
 859 * @return unknown
 860 */
 861function image_attachment_fields_to_save($post, $attachment) {
 862	if ( substr($post['post_mime_type'], 0, 5) == 'image' ) {
 863		if ( strlen(trim($post['post_title'])) == 0 ) {
 864			$post['post_title'] = preg_replace('/\.\w+$/', '', basename($post['guid']));
 865			$post['errors']['post_title']['errors'][] = __('Empty Title filled from filename.');
 866		}
 867	}
 868
 869	return $post;
 870}
 871
 872add_filter('attachment_fields_to_save', 'image_attachment_fields_to_save', 10, 2);
 873
 874/**
 875 * {@internal Missing Short Description}}
 876 *
 877 * @since 2.5.0
 878 *
 879 * @param unknown_type $html
 880 * @param unknown_type $attachment_id
 881 * @param unknown_type $attachment
 882 * @return unknown
 883 */
 884function image_media_send_to_editor($html, $attachment_id, $attachment) {
 885	$post =& get_post($attachment_id);
 886	if ( substr($post->post_mime_type, 0, 5) == 'image' ) {
 887		$url = $attachment['url'];
 888		$align = !empty($attachment['align']) ? $attachment['align'] : 'none';
 889		$size = !empty($attachment['image-size']) ? $attachment['image-size'] : 'medium';
 890		$alt = !empty($attachment['image_alt']) ? $attachment['image_alt'] : '';
 891		$rel = ( $url == get_attachment_link($attachment_id) );
 892
 893		return get_image_send_to_editor($attachment_id, $attachment['post_excerpt'], $attachment['post_title'], $align, $url, $rel, $size, $alt);
 894	}
 895
 896	return $html;
 897}
 898
 899add_filter('media_send_to_editor', 'image_media_send_to_editor', 10, 3);
 900
 901/**
 902 * {@internal Missing Short Description}}
 903 *
 904 * @since 2.5.0
 905 *
 906 * @param unknown_type $post
 907 * @param unknown_type $errors
 908 * @return unknown
 909 */
 910function get_attachment_fields_to_edit($post, $errors = null) {
 911	if ( is_int($post) )
 912		$post =& get_post($post);
 913	if ( is_array($post) )
 914		$post = (object) $post;
 915
 916	$image_url = wp_get_attachment_url($post->ID);
 917
 918	$edit_post = sanitize_post($post, 'edit');
 919
 920
 921
 922	$form_fields = array(
 923		'post_title'   => array(
 924			'label'      => __('Title'),
 925			'value'      => $edit_post->post_title
 926		),
 927		'image_alt'   => array(),
 928		'post_excerpt' => array(
 929			'label'      => __('Caption'),
 930			'value'      => $edit_post->post_excerpt
 931		),
 932		'post_content' => array(
 933			'label'      => __('Description'),
 934			'value'      => $edit_post->post_content,
 935			'input'      => 'textarea'
 936		),
 937		'url'          => array(
 938			'label'      => __('Link URL'),
 939			'input'      => 'html',
 940			'html'       => image_link_input_fields($post, get_option('image_default_link_type')),
 941			'helps'      => __('Enter a link URL or click above for presets.')
 942		),
 943		'menu_order'   => array(
 944			'label'      => __('Order'),
 945			'value'      => $edit_post->menu_order
 946		),
 947		'image_url'	=> array(
 948			'label'      => __('File URL'),
 949			'input'      => 'html',
 950			'html'       => "<input type='text' class='text urlfield' readonly='readonly' name='attachments[$post->ID][url]' value='" . esc_attr($image_url) . "' /><br />",
 951			'value'      => wp_get_attachment_url($post->ID),
 952			'helps'      => __('Location of the uploaded file.')
 953		)
 954	);
 955
 956	foreach ( get_attachment_taxonomies($post) as $taxonomy ) {
 957		$t = (array) get_taxonomy($taxonomy);
 958		if ( ! $t['public'] )
 959			continue;
 960		if ( empty($t['label']) )
 961			$t['label'] = $taxonomy;
 962		if ( empty($t['args']) )
 963			$t['args'] = array();
 964
 965		$terms = get_object_term_cache($post->ID, $taxonomy);
 966		if ( empty($terms) )
 967			$terms = wp_get_object_terms($post->ID, $taxonomy, $t['args']);
 968
 969		$values = array();
 970
 971		foreach ( $terms as $term )
 972			$values[] = $term->name;
 973		$t['value'] = join(', ', $values);
 974
 975		$form_fields[$taxonomy] = $t;
 976	}
 977
 978	// Merge default fields with their errors, so any key passed with the error (e.g. 'error', 'helps', 'value') will replace the default
 979	// The recursive merge is easily traversed with array casting: foreach( (array) $things as $thing )
 980	$form_fields = array_merge_recursive($form_fields, (array) $errors);
 981
 982	$form_fields = apply_filters('attachment_fields_to_edit', $form_fields, $post);
 983
 984	return $form_fields;
 985}
 986
 987/**
 988 * Retrieve HTML for media items of post gallery.
 989 *
 990 * The HTML markup retrieved will be created for the progress of SWF Upload
 991 * component. Will also create link for showing and hiding the form to modify
 992 * the image attachment.
 993 *
 994 * @since 2.5.0
 995 *
 996 * @param int $post_id Optional. Post ID.
 997 * @param array $errors Errors for attachment, if any.
 998 * @return string
 999 */
1000function get_media_items( $post_id, $errors ) {
1001	$attachments = array();
1002	if ( $post_id ) {
1003		$post = get_post($post_id);
1004		if ( $post && $post->post_type == 'attachment' )
1005			$attachments = array($post->ID => $post);
1006		else
1007			$attachments = get_children( array( 'post_parent' => $post_id, 'post_type' => 'attachment', 'orderby' => 'menu_order ASC, ID', 'order' => 'DESC') );
1008	} else {
1009		if ( is_array($GLOBALS['wp_the_query']->posts) )
1010			foreach ( $GLOBALS['wp_the_query']->posts as $attachment )
1011				$attachments[$attachment->ID] = $attachment;
1012	}
1013
1014	$output = '';
1015	foreach ( (array) $attachments as $id => $attachment ) {
1016		if ( $attachment->post_status == 'trash' )
1017			continue;
1018		if ( $item = get_media_item( $id, array( 'errors' => isset($errors[$id]) ? $errors[$id] : null) ) )
1019			$output .= "\n<div id='media-item-$id' class='media-item child-of-$attachment->post_parent preloaded'><div class='progress hidden'><div class='bar'></div></div><div id='media-upload-error-$id' class='hidden'></div><div class='filename hidden'></div>$item\n</div>";
1020	}
1021
1022	return $output;
1023}
1024
1025/**
1026 * Retrieve HTML form for modifying the image attachment.
1027 *
1028 * @since 2.5.0
1029 *
1030 * @param int $attachment_id Attachment ID for modification.
1031 * @param string|array $args Optional. Override defaults.
1032 * @return string HTML form for attachment.
1033 */
1034function get_media_item( $attachment_id, $args = null ) {
1035	global $redir_tab;
1036
1037	if ( ( $attachment_id = intval( $attachment_id ) ) && $thumb_url = wp_get_attachment_image_src( $attachment_id, 'thumbnail', true ) )
1038		$thumb_url = $thumb_url[0];
1039	else
1040		$thumb_url = false;
1041
1042	$post = get_post( $attachment_id );
1043	$current_post_id = !empty( $_GET['post_id'] ) ? (int) $_GET['post_id'] : 0;
1044
1045	$default_args = array( 'errors' => null, 'send' => $current_post_id ? post_type_supports( get_post_type( $current_post_id ), 'editor' ) : true, 'delete' => true, 'toggle' => true, 'show_title' => true );
1046	$args = wp_parse_args( $args, $default_args );
1047	$args = apply_filters( 'get_media_item_args', $args );
1048	extract( $args, EXTR_SKIP );
1049
1050	$toggle_on  = __( 'Show' );
1051	$toggle_off = __( 'Hide' );
1052
1053	$filename = esc_html( basename( $post->guid ) );
1054	$title = esc_attr( $post->post_title );
1055
1056	if ( $_tags = get_the_tags( $attachment_id ) ) {
1057		foreach ( $_tags as $tag )
1058			$tags[] = $tag->name;
1059		$tags = esc_attr( join( ', ', $tags ) );
1060	}
1061
1062	$post_mime_types = get_post_mime_types();
1063	$keys = array_keys( wp_match_mime_types( array_keys( $post_mime_types ), $post->post_mime_type ) );
1064	$type = array_shift( $keys );
1065	$type_html = "<input type='hidden' id='type-of-$attachment_id' value='" . esc_attr( $type ) . "' />";
1066
1067	$form_fields = get_attachment_fields_to_edit( $post, $errors );
1068
1069	if ( $toggle ) {
1070		$class = empty( $errors ) ? 'startclosed' : 'startopen';
1071		$toggle_links = "
1072	<a class='toggle describe-toggle-on' href='#'>$toggle_on</a>
1073	<a class='toggle describe-toggle-off' href='#'>$toggle_off</a>";
1074	} else {
1075		$class = '';
1076		$toggle_links = '';
1077	}
1078
1079	$display_title = ( !empty( $title ) ) ? $title : $filename; // $title shouldn't ever be empty, but just in case
1080	$display_title = $show_title ? "<div class='filename new'><span class='title'>" . wp_html_excerpt( $display_title, 60 ) . "</span></div>" : '';
1081
1082	$gallery = ( ( isset( $_REQUEST['tab'] ) && 'gallery' == $_REQUEST['tab'] ) || ( isset( $redir_tab ) && 'gallery' == $redir_tab ) );
1083	$order = '';
1084
1085	foreach ( $form_fields as $key => $val ) {
1086		if ( 'menu_order' == $key ) {
1087			if ( $gallery )
1088				$order = "<div class='menu_order'> <input class='menu_order_input' type='text' id='attachments[$attachment_id][menu_order]' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ). "' /></div>";
1089			else
1090				$order = "<input type='hidden' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' />";
1091
1092			unset( $form_fields['menu_order'] );
1093			break;
1094		}
1095	}
1096
1097	$media_dims = '';
1098	$meta = wp_get_attachment_metadata( $post->ID );
1099	if ( is_array( $meta ) && array_key_exists( 'width', $meta ) && array_key_exists( 'height', $meta ) )
1100		$media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']}&nbsp;&times;&nbsp;{$meta['height']}</span> ";
1101	$media_dims = apply_filters( 'media_meta', $media_dims, $post );
1102
1103	$image_edit_button = '';
1104	if ( gd_edit_image_support( $post->post_mime_type ) ) {
1105		$nonce = wp_create_nonce( "image_editor-$post->ID" );
1106		$image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <img src='" . esc_url( admin_url( 'images/wpspin_light.gif' ) ) . "' class='imgedit-wait-spin' alt='' />";
1107	}
1108
1109	$attachment_url = get_permalink( $attachment_id );
1110
1111	$item = "
1112	$type_html
1113	$toggle_links
1114	$order
1115	$display_title
1116	<table class='slidetoggle describe $class'>
1117		<thead class='media-item-info' id='media-head-$post->ID'>
1118		<tr valign='top'>
1119			<td class='A1B1' id='thumbnail-head-$post->ID'>
1120			<p><a href='$attachment_url' target='_blank'><img class='thumbnail' src='$thumb_url' alt='' /></a></p>
1121			<p>$image_edit_button</p>
1122			</td>
1123			<td>
1124			<p><strong>" . __('File name:') . "</strong> $filename</p>
1125			<p><strong>" . __('File type:') . "</strong> $post->post_mime_type</p>
1126			<p><strong>" . __('Upload date:') . "</strong> " . mysql2date( get_option('date_format'), $post->post_date ). '</p>';
1127			if ( !empty( $media_dims ) )
1128				$item .= "<p><strong>" . __('Dimensions:') . "</strong> $media_dims</p>\n";
1129
1130			$item .= "</td></tr>\n";
1131
1132
1133
1134	$item .= "
1135		</thead>
1136		<tbody>
1137		<tr><td colspan='2' class='imgedit-response' id='imgedit-response-$post->ID'></td></tr>
1138		<tr><td style='display:none' colspan='2' class='image-editor' id='image-editor-$post->ID'></td></tr>\n";
1139
1140	$defaults = array(
1141		'input'      => 'text',
1142		'required'   => false,
1143		'value'      => '',
1144		'extra_rows' => array(),
1145	);
1146
1147	if ( $send )
1148		$send = get_submit_button( __( 'Insert into Post' ), 'button', "send[$attachment_id]", false );
1149	if ( $delete && current_user_can( 'delete_post', $attachment_id ) ) {
1150		if ( !EMPTY_TRASH_DAYS ) {
1151			$delete = "<a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-attachment_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete'>" . __( 'Delete Permanently' ) . '</a>';
1152		} elseif ( !MEDIA_TRASH ) {
1153			$delete = "<a href='#' class='del-link' onclick=\"document.getElementById('del_attachment_$attachment_id').style.display='block';return false;\">" . __( 'Delete' ) . "</a>
1154			 <div id='del_attachment_$attachment_id' class='del-attachment' style='display:none;'>" . sprintf( __( 'You are about to delete <strong>%s</strong>.' ), $filename ) . "
1155			 <a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-attachment_' . $attachment_id ) . "' id='del[$attachment_id]' class='button'>" . __( 'Continue' ) . "</a>
1156			 <a href='#' class='button' onclick=\"this.parentNode.style.display='none';return false;\">" . __( 'Cancel' ) . "</a>
1157			 </div>";
1158		} else {
1159			$delete = "<a href='" . wp_nonce_url( "post.php?action=trash&amp;post=$attachment_id", 'trash-attachment_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete'>" . __( 'Move to Trash' ) . "</a>
1160			<a href='" . wp_nonce_url( "post.php?action=untrash&amp;post=$attachment_id", 'untrash-attachment_' . $attachment_id ) . "' id='undo[$attachment_id]' class='undo hidden'>" . __( 'Undo' ) . "</a>";
1161		}
1162	} else {
1163		$delete = '';
1164	}
1165
1166	$thumbnail = '';
1167	$calling_post_id = 0;
1168	if ( isset( $_GET['post_id'] ) )
1169		$calling_post_id = absint( $_GET['post_id'] );
1170	elseif ( isset( $_POST ) && count( $_POST ) ) // Like for async-upload where $_GET['post_id'] isn't set
1171		$calling_post_id = $post->post_parent;
1172	if ( 'image' == $type && $calling_post_id && current_theme_supports( 'post-thumbnails', get_post_type( $calling_post_id ) )
1173		&& post_type_supports( get_post_type( $calling_post_id ), 'thumbnail' ) && get_post_thumbnail_id( $calling_post_id ) != $attachment_id ) {
1174		$ajax_nonce = wp_create_nonce( "set_post_thumbnail-$calling_post_id" );
1175		$thumbnail = "<a class='wp-post-thumbnail' id='wp-post-thumbnail-" . $attachment_id . "' href='#' onclick='WPSetAsThumbnail(\"$attachment_id\", \"$ajax_nonce\");return false;'>" . esc_html__( "Use as featured image" ) . "</a>";
1176	}
1177
1178	if ( ( $send || $thumbnail || $delete ) && !isset( $form_fields['buttons'] ) )
1179		$form_fields['buttons'] = array( 'tr' => "\t\t<tr class='submit'><td></td><td class='savesend'>$send $thumbnail $delete</td></tr>\n" );
1180
1181	$hidden_fields = array();
1182
1183	foreach ( $form_fields as $id => $field ) {
1184		if ( $id[0] == '_' )
1185			continue;
1186
1187		if ( !empty( $field['tr'] ) ) {
1188			$item .= $field['tr'];
1189			continue;
1190		}
1191
1192		$field = array_merge( $defaults, $field );
1193		$name = "attachments[$attachment_id][$id]";
1194
1195		if ( $field['input'] == 'hidden' ) {
1196			$hidden_fields[$name] = $field['value'];
1197			continue;
1198		}
1199
1200		$required      = $field['required'] ? '<span class="alignright"><abbr title="required" class="required">*</abbr></span>' : '';
1201		$aria_required = $field['required'] ? " aria-required='true' " : '';
1202		$class  = $id;
1203		$class .= $field['required'] ? ' form-required' : '';
1204
1205		$item .= "\t\t<tr class='$class'>\n\t\t\t<th valign='top' scope='row' class='label'><label for='$name'><span class='alignleft'>{$field['label']}</span>$required<br class='clear' /></label></th>\n\t\t\t<td class='field'>";
1206		if ( !empty( $field[ $field['input'] ] ) )
1207			$item .= $field[ $field['input'] ];
1208		elseif ( $field['input'] == 'textarea' ) {
1209			if ( user_can_richedit() ) { // textarea_escaped when user_can_richedit() = false
1210				$field['value'] = esc_textarea( $field['value'] );
1211			}
1212			$item .= "<textarea id='$name' name='$name' $aria_required>" . $field['value'] . '</textarea>';
1213		} else {
1214			$item .= "<input type='text' class='text' id='$name' name='$name' value='" . esc_attr( $field['value'] ) . "' $aria_required />";
1215		}
1216		if ( !empty( $field['helps'] ) )
1217			$item .= "<p class='help'>" . join( "</p>\n<p class='help'>", array_unique( (array) $field['helps'] ) ) . '</p>';
1218		$item .= "</td>\n\t\t</tr>\n";
1219
1220		$extra_rows = array();
1221
1222		if ( !empty( $field['errors'] ) )
1223			foreach ( array_unique( (array) $field['errors'] ) as $error )
1224				$extra_rows['error'][] = $error;
1225
1226		if ( !empty( $field['extra_rows'] ) )
1227			foreach ( $field['extra_rows'] as $class => $rows )
1228				foreach ( (array) $rows as $html )
1229					$extra_rows[$class][] = $html;
1230
1231		foreach ( $extra_rows as $class => $rows )
1232			foreach ( $rows as $html )
1233				$item .= "\t\t<tr><td></td><td class='$class'>$html</td></tr>\n";
1234	}
1235
1236	if ( !empty( $form_fields['_final'] ) )
1237		$item .= "\t\t<tr class='final'><td colspan='2'>{$form_fields['_final']}</td></tr>\n";
1238	$item .= "\t</tbody>\n";
1239	$item .= "\t</table>\n";
1240
1241	foreach ( $hidden_fields as $name => $value )
1242		$item .= "\t<input type='hidden' name='$name' id='$name' value='" . esc_attr( $value ) . "' />\n";
1243
1244	if ( $post->post_parent < 1 && isset( $_REQUEST['post_id'] ) ) {
1245		$parent = (int) $_REQUEST['post_id'];
1246		$parent_name = "attachments[$attachment_id][post_parent]";
1247		$item .= "\t<input type='hidden' name='$parent_name' id='$parent_name' value='$parent' />\n";
1248	}
1249
1250	return $item;
1251}
1252
1253/**
1254 * {@internal Missing Short Description}}
1255 *
1256 * @since 2.5.0
1257 */
1258function media_upload_header() {
1259	?>
1260	<script type="text/javascript">post_id = <?php echo intval($_REQUEST['post_id']); ?>;</script>
1261	<div id="media-upload-header">
1262	<?php the_media_upload_tabs(); ?>
1263	</div>
1264	<?php
1265}
1266
1267/**
1268 * {@internal Missing Short Description}}
1269 *
1270 * @since 2.5.0
1271 *
1272 * @param unknown_type $errors
1273 */
1274function media_upload_form( $errors = null ) {
1275	global $type, $tab, $pagenow, $is_IE, $is_opera, $is_iphone;
1276
1277	if ( $is_iphone )
1278		return;
1279
1280	$upload_action_url = admin_url('async-upload.php');
1281	$post_id = isset($_REQUEST['post_id']) ? intval($_REQUEST['post_id']) : 0;
1282	$_type = isset($type) ? $type : '';
1283	$_tab = isset($tab) ? $tab : '';
1284
1285	$upload_size_unit = $max_upload_size = wp_max_upload_size();
1286	$sizes = array( 'KB', 'MB', 'GB' );
1287
1288	for ( $u = -1; $upload_size_unit > 1024 && $u < count( $sizes ) - 1; $u++ ) {
1289		$upload_size_unit /= 1024;
1290	}
1291
1292	if ( $u < 0 ) {
1293		$upload_size_unit = 0;
1294		$u = 0;
1295	} else {
1296		$upload_size_unit = (int) $upload_size_unit;
1297	}
1298?>
1299
1300<div id="media-upload-notice"><?php
1301
1302	if (isset($errors['upload_notice']) )
1303		echo $errors['upload_notice'];
1304
1305?></div>
1306<div id="media-upload-error"><?php
1307
1308	if (isset($errors['upload_error']) && is_wp_error($errors['upload_error']))
1309		echo $errors['upload_error']->get_error_message();
1310
1311?></div>
1312<?php
1313// Check quota for this blog if multisite
1314if ( is_multisite() && !is_upload_space_available() ) {
1315	echo '<p>' . sprintf( __( 'Sorry, you have filled your storage quota (%s MB).' ), get_space_allowed() ) . '</p>';
1316	return;
1317}
1318
1319do_action('pre-upload-ui');
1320
1321$post_params = array(
1322		"post_id" => $post_id,
1323		"_wpnonce" => wp_create_nonce('media-form'),
1324		"type" => $_type,
1325		"tab" => $_tab,
1326		"short" => "1",
1327);
1328
1329$post_params = apply_filters( 'upload_post_params', $post_params ); // hook change! old name: 'swfupload_post_params'
1330
1331$plupload_init = array(
1332	'runtimes' => 'html5,silverlight,flash,html4',
1333	'browse_button' => 'plupload-browse-button',
1334	'container' => 'plupload-upload-ui',
1335	'drop_element' => 'drag-drop-area',
1336	'file_data_name' => 'async-upload',
1337	'multiple_queues' => true,
1338	'max_file_size' => $max_upload_size . 'b',
1339	'url' => $upload_action_url,
1340	'flash_swf_url' => includes_url('js/plupload/plupload.flash.swf'),
1341	'silverlight_xap_url' => includes_url('js/plupload/plupload.silverlight.xap'),
1342	'filters' => array( array('title' => __( 'Allowed Files' ), 'extensions' => '*') ),
1343	'multipart' => true,
1344	'urlstream_upload' => true,
1345	'multipart_params' => $post_params
1346);
1347
1348$plupload_init = apply_filters( 'plupload_init', $plupload_init );
1349
1350?>
1351
1352<script type="text/javascript">
1353<?php
1354// Verify size is an int. If not return default value.
1355$large_size_h = absint( get_option('large_size_h') );
1356if( !$large_size_h )
1357	$large_size_h = 1024;
1358$large_size_w = absint( get_option('large_size_w') );
1359if( !$large_size_w )
1360	$large_size_w = 1024;
1361?>
1362var resize_height = <?php echo $large_size_h; ?>, resize_width = <?php echo $large_size_w; ?>,
1363wpUploaderInit = <?php echo json_encode($plupload_init); ?>;
1364</script>
1365
1366<div id="plupload-upload-ui" class="hide-if-no-js">
1367<?php do_action('pre-plupload-upload-ui'); // hook change, old name: 'pre-flash-upload-ui' ?>
1368<div id="drag-drop-area">
1369	<div class="drag-drop-inside">
1370	<p class="drag-drop-info"><?php _e('Drop files here'); ?></p>
1371	<p><?php _ex('or', 'Uploader: Drop files here - or - Select Files'); ?></p>
1372	<p class="drag-drop-buttons"><input id="plupload-browse-button" type="button" value="<?php esc_attr_e('Select Files'); ?>" class="button" /></p>
1373	</div>
1374</div>
1375<?php do_action('post-plupload-upload-ui'); // hook change, old name: 'post-flash-upload-ui' ?>
1376</div>
1377
1378<div id="html-upload-ui" class="hide-if-js">
1379<?php do_action('pre-html-upload-ui'); ?>
1380	<p id="async-upload-wrap">
1381		<label class="screen-reader-text" for="async-upload"><?php _e('Upload'); ?></label>
1382		<input type="file" name="async-upload" id="async-upload" />
1383		<?php submit_button( __( 'Upload' ), 'button', 'html-upload', false ); ?>
1384		<a href="#" onclick="try{top.tb_remove();}catch(e){}; return false;"><?php _e('Cancel'); ?></a>
1385	</p>
1386	<div class="clear"></div>
1387<?php do_action('post-html-upload-ui'); ?>
1388</div>
1389
1390<span class="max-upload-size"><?php printf( __( 'Maximum upload file size: %d%s.' ), esc_html($upload_size_unit), esc_html($sizes[$u]) ); ?></span>
1391<?php
1392if ( ($is_IE || $is_opera) && $max_upload_size > 100 * 1024 * 1024 ) { ?>
1393	<span class="big-file-warning"><?php _e('Your browser has some limitations uploading large files with the multi-file uploader. Please use the browser uploader for files over 100MB.'); ?></span>
1394<?php }
1395
1396	do_action('post-upload-ui');
1397}
1398
1399/**
1400 * {@internal Missing Short Description}}
1401 *
1402 * @since 2.5.0
1403 *
1404 * @param unknown_type $type
1405 * @param unknown_type $errors
1406 * @param unknown_type $id
1407 */
1408function media_upload_type_form($type = 'file', $errors = null, $id = null) {
1409	global $is_iphone;
1410
1411	if ( $is_iphone )
1412		return;
1413
1414	media_upload_header();
1415
1416	$post_id = isset( $_REQUEST['post_id'] )? intval( $_REQUEST['post_id'] ) : 0;
1417
1418	$form_action_url = admin_url("media-upload.php?type=$type&tab=type&post_id=$post_id");
1419	$form_action_url = apply_filters('media_upload_form_url', $form_action_url, $type);
1420	$form_class = 'media-upload-form type-form validate';
1421
1422	if ( get_user_setting('uploader') )
1423		$form_class .= ' html-uploader';
1424?>
1425
1426<form enctype="multipart/form-data" method="post" action="<?php echo esc_attr($form_action_url); ?>" class="<?php echo $form_class; ?>" id="<?php echo $type; ?>-form">
1427<?php submit_button( '', 'hidden', 'save', false ); ?>
1428<input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
1429<?php wp_nonce_field('media-form'); ?>
1430
1431<h3 class="media-title"><?php _e('Add media files from your computer'); ?></h3>
1432
1433<?php media_upload_form( $errors ); ?>
1434
1435<script type="text/javascript">
1436//<![CDATA[
1437jQuery(function($){
1438	var preloaded = $(".media-item.preloaded");
1439	if ( preloaded.length > 0 ) {
1440		preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
1441	}
1442	updateMediaForm();
1443});
1444//]]>
1445</script>
1446<div id="media-items"><?php
1447
1448if ( $id ) {
1449	if ( !is_wp_error($id) ) {
1450		add_filter('attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2);
1451		echo get_media_items( $id, $errors );
1452	} else {
1453		echo '<div id="media-upload-error">'.esc_html($id->get_error_message()).'</div></div>';
1454		exit;
1455	}
1456}
1457?></div>
1458
1459<p class="savebutton ml-submit">
1460<?php submit_button( __( 'Save all changes' ), 'button', 'save', false ); ?>
1461</p>
1462</form>
1463<?php
1464}
1465
1466/**
1467 * {@internal Missing Short Description}}
1468 *
1469 * @since 2.7.0
1470 *
1471 * @param unknown_type $type
1472 * @param unknown_type $errors
1473 * @param unknown_type $id
1474 */
1475function media_upload_type_url_form($type = null, $errors = null, $id = null) {
1476	if ( null === $type )
1477		$type = 'image';
1478
1479	media_upload_header();
1480
1481	$post_id = intval($_REQUEST['post_id']);
1482
1483	$form_action_url = admin_url("media-upload.php?type=$type&tab=type&post_id=$post_id");
1484	$form_action_url = apply_filters('media_upload_form_url', $form_action_url, $type);
1485	$form_class = 'media-upload-form type-form validate';
1486
1487	if ( get_user_setting('uploader') )
1488		$form_class .= ' html-uploader';
1489?>
1490
1491<form enctype="multipart/form-data" method="post" action="<?php echo esc_attr($form_action_url); ?>" class="<?php echo $form_class; ?>" id="<?php echo $type; ?>-form">
1492<input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
1493<?php wp_nonce_field('media-form'); ?>
1494
1495<h3 class="media-title"><?php _e('Insert media from another website'); ?></h3>
1496
1497<script type="text/javascript">
1498//<![CDATA[
1499var addExtImage = {
1500
1501	width : '',
1502	height : '',
1503	align : 'alignnone',
1504
1505	insert : function() {
1506		var t = this, html, f = document.forms[0], cls, title = '', alt = '', caption = '';
1507
1508		if ( '' == f.src.value || '' == t.width )
1509			return false;
1510
1511		if ( f.title.value ) {
1512			title = f.title.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
1513			title = ' title="'+title+'"';
1514		}
1515
1516		if ( f.alt.value )
1517			alt = f.alt.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
1518
1519<?php if ( ! apply_filters( 'disable_captions', '' ) ) { ?>
1520		if ( f.caption.value )
1521			caption = f.caption.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
1522<?php } ?>
1523
1524		cls = caption ? '' : ' class="'+t.align+'"';
1525
1526		html = '<img alt="'+alt+'" src="'+f.src.value+'"'+title+cls+' width="'+t.width+'" height="'+t.height+'" />';
1527
1528		if ( f.url.value ) {
1529			url = f.url.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
1530			html = '<a href="'+url+'">'+html+'</a>';
1531		}
1532
1533		if ( caption )
1534			html = '[caption id="" align="'+t.align+'" width="'+t.width+'" caption="'+caption+'"]'+html+'[/caption]';
1535
1536		var win = window.dialogArguments || opener || parent || top;
1537		win.send_to_editor(html);
1538		return false;
1539	},
1540
1541	resetImageData : function() {
1542		var t = addExtImage;
1543
1544		t.width = t.height = '';
1545		document.getElementById('go_button').style.color = '#bbb';
1546		if ( ! document.forms[0].src.value )
1547			document.getElementById('status_img').innerHTML = '*';
1548		else document.getElementById('status_img').innerHTML = '…

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