<?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, '', $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') ?> &rsaquo; <?php _e('Uploads'); ?> &#8212; <?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="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);

	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') {

	$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> ';

	echo '<a href="#" class="button insert-media add_media" data-editor="' . esc_attr( $editor_id ) . '" title="' . esc_attr__( 'Add Media' ) . '">' . $img . __( 'Add Media' ) . '</a>';

	// Don't use this filter. Want to add a button? Use the media_buttons action.

	$legacy_filter = apply_filters('media_buttons_context', ''); // deprecated

	if ( $legacy_filter ) {

		// #WP22559. Close <a> if a plugin started by closing <a> to open their own <a> tag.