function fileDialogStart() {

	jQuery("#media-upload-error").empty();

}

// progress and success handlers for media multi uploads

function fileQueued(fileObj) {

	// Get rid of unused form

	jQuery('.media-blank').remove();

	// Collapse a single item

	if ( jQuery('.type-form #media-items>*').length == 1 && jQuery('#media-items .hidden').length > 0 ) {

		jQuery('.describe-toggle-on').show();

		jQuery('.describe-toggle-off').hide();

		jQuery('.slidetoggle').slideUp(200).siblings().removeClass('hidden');

	}

	// Create a progress bar containing the filename

	jQuery('#media-items').append('<div id="media-item-' + fileObj.id + '" class="media-item child-of-' + post_id + '"><div class="progress"><div class="bar"></div></div><div class="filename original"><span class="percent"></span> ' + fileObj.name + '</div></div>');

	// Display the progress div

	jQuery('#media-item-' + fileObj.id + ' .progress').show();

	// Disable submit and enable cancel

	jQuery('#insert-gallery').attr('disabled', 'disabled');

	jQuery('#cancel-upload').attr('disabled', '');

}

function uploadStart(fileObj) {

	return true;

}

function uploadProgress(fileObj, bytesDone, bytesTotal) {

	// Lengthen the progress bar

	var w = jQuery('#media-items').width() - 2;

	jQuery('#media-item-' + fileObj.id + ' .bar').width( w * bytesDone / bytesTotal );

	jQuery('#media-item-' + fileObj.id + ' .percent').html( Math.ceil(bytesDone / bytesTotal * 100) + '%' );

	if ( bytesDone == bytesTotal )

		jQuery('#media-item-' + fileObj.id + ' .bar').html('<strong class="crunching">' + swfuploadL10n.crunching + '</strong>');

}

function prepareMediaItem(fileObj, serverData) {

	// Move the progress bar to 100%

	jQuery('#media-item-' + fileObj.id + ' .bar').remove();

	jQuery('#media-item-' + fileObj.id + ' .progress').hide();

	var f = ( typeof shortform == 'undefined' ) ? 1 : 2;

	// Old style: Append the HTML returned by the server -- thumbnail and form inputs

	if ( isNaN(serverData) || !serverData ) {

		jQuery('#media-item-' + fileObj.id).append(serverData);

		prepareMediaItemInit(fileObj);

	}

	// New style: server data is just the attachment ID, fetch the thumbnail and form html from the server

	else {

		jQuery('#media-item-' + fileObj.id).load('async-upload.php', {attachment_id:serverData, fetch:f}, function(){prepareMediaItemInit(fileObj);updateMediaForm()});

	}

}

function prepareMediaItemInit(fileObj) {

	// Clone the thumbnail as a "pinkynail" -- a tiny image to the left of the filename

	jQuery('#media-item-' + fileObj.id + ' .thumbnail').clone().attr('className', 'pinkynail toggle').prependTo('#media-item-' + fileObj.id);

	// Replace the original filename with the new (unique) one assigned during upload

	jQuery('#media-item-' + fileObj.id + ' .filename.original').replaceWith(jQuery('#media-item-' + fileObj.id + ' .filename.new'));

	// Also bind toggle to the links

	jQuery('#media-item-' + fileObj.id + ' a.toggle').click(function(){

		jQuery(this).siblings('.slidetoggle').slideToggle(150, function(){

			var o = jQuery(this).offset();

			window.scrollTo(0, o.top-36);

		});

		jQuery(this).parent().children('.toggle').toggle();

		jQuery(this).siblings('a.toggle').focus();

		return false;

	});

	// Bind AJAX to the new Delete button

	jQuery('#media-item-' + fileObj.id + ' a.delete').click(function(){

		// Tell the server to delete it. TODO: handle exceptions

		jQuery.ajax({url:'admin-ajax.php',type:'post',success:deleteSuccess,error:deleteError,id:fileObj.id,data:{

			id : this.id.replace(/[^0-9]/g,''),

			action : 'delete-post',

			_ajax_nonce : this.href.replace(/^.*wpnonce=/,'')}

			});

		return false;

	});

	// Open this item if it says to start open (e.g. to display an error)

	jQuery('#media-item-' + fileObj.id + '.startopen').removeClass('startopen').slideToggle(500).parent().children('.toggle').toggle();

}

function itemAjaxError(id, html) {

	var error = jQuery('#media-item-error' + id);

	error.html('<div class="file-error"><button type="button" id="dismiss-'+id+'" class="button dismiss">'+swfuploadL10n.dismiss+'</button>'+html+'</div>');

	jQuery('#dismiss-'+id).click(function(){jQuery(this).parents('.file-error').slideUp(200, function(){jQuery(this).empty();})});

}

function deleteSuccess(data, textStatus) {

	if ( data == '-1' )

		return itemAjaxError(this.id, 'You do not have permission. Has your session expired?');

	if ( data == '0' )

		return itemAjaxError(this.id, 'Could not be deleted. Has it been deleted already?');

	var item = jQuery('#media-item-' + this.id);

	// Decrement the counters.

	if ( type = jQuery('#type-of-' + this.id).val() )

		jQuery('#' + type + '-counter').text(jQuery('#' + type + '-counter').text()-1);

	if ( item.hasClass('child-of-'+post_id) )

		jQuery('#attachments-count').text(jQuery('#attachments-count').text()-1);

	if ( jQuery('.type-form #media-items>*').length == 1 && jQuery('#media-items .hidden').length > 0 ) {

		jQuery('.toggle').toggle();

		jQuery('.slidetoggle').slideUp(200).siblings().removeClass('hidden');

	}

	// Vanish it.

	jQuery('#media-item-' + this.id + ' .filename:empty').remove();

	jQuery('#media-item-' + this.id + ' .filename').append(' <span class="file-error">'+swfuploadL10n.deleted+'</span>').siblings('a.toggle').remove();

	jQuery('#media-item-' + this.id).children('.describe').css({backgroundColor:'#fff'}).end()

			.animate({backgroundColor:'#ffc0c0'}, {queue:false,duration:50})

			.animate({minHeight:0,height:36}, 400, null, function(){jQuery(this).children('.describe').remove()})

			.animate({backgroundColor:'#fff'}, 400)

			.animate({height:0}, 800, null, function(){jQuery(this).remove();updateMediaForm();});

	return;

}

function deleteError(X, textStatus, errorThrown) {

	// TODO

}

function updateMediaForm() {

	storeState();

	// Just one file, no need for collapsible part

	if ( jQuery('.type-form #media-items>*').length == 1 ) {

		jQuery('#media-items .slidetoggle').slideDown(500).parent().eq(0).children('.toggle').toggle();

		jQuery('.type-form .slidetoggle').siblings().addClass('hidden');

	}

	// Only show Save buttons when there is at least one file.

	if ( jQuery('#media-items>*').not('.media-blank').length > 0 )

		jQuery('.savebutton').show();

	else

		jQuery('.savebutton').hide();

	// Only show Gallery button when there are at least two files.

	if ( jQuery('#media-items>*').length > 1 )

		jQuery('.insert-gallery').show();

	else

		jQuery('.insert-gallery').hide();

}

function uploadSuccess(fileObj, serverData) {

	// if async-upload returned an error message, place it in the media item div and return

	if ( serverData.match('media-upload-error') ) {

		jQuery('#media-item-' + fileObj.id).html(serverData);

		return;

	}

	prepareMediaItem(fileObj, serverData);

	updateMediaForm();

	// Increment the counter.

	if ( jQuery('#media-item-' + fileObj.id).hasClass('child-of-' + post_id) )

		jQuery('#attachments-count').text(1 * jQuery('#attachments-count').text() + 1);

}

function uploadComplete(fileObj) {

	// If no more uploads queued, enable the submit button

	if ( swfu.getStats().files_queued == 0 ) {

		jQuery('#cancel-upload').attr('disabled', 'disabled');

		jQuery('#insert-gallery').attr('disabled', '');

	}

}

// wp-specific error handlers

// generic message

function wpQueueError(message) {

	jQuery('#media-upload-error').show().text(message);

}

// file-specific message

function wpFileError(fileObj, message) {

	jQuery('#media-item-' + fileObj.id + ' .filename').after('<div class="file-error"><button type="button" id="dismiss-' + fileObj.id + '" class="button dismiss">'+swfuploadL10n.dismiss+'</button>'+message+'</div>').siblings('.toggle').remove();

	jQuery('#dismiss-' + fileObj.id).click(function(){jQuery(this).parents('.media-item').slideUp(200, function(){jQuery(this).remove();})});

}

function fileQueueError(fileObj, error_code, message)  {

	// Handle this error separately because we don't want to create a FileProgress element for it.

	if ( error_code == SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED ) {

		wpQueueError(swfuploadL10n.queue_limit_exceeded);

	}

	else if ( error_code == SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT ) {

		fileQueued(fileObj);

		wpFileError(fileObj, swfuploadL10n.file_exceeds_size_limit);

	}

	else if ( error_code == SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE ) {

		fileQueued(fileObj);

		wpFileError(fileObj, swfuploadL10n.zero_byte_file);

	}

	else if ( error_code == SWFUpload.QUEUE_ERROR.INVALID_FILETYPE ) {

		fileQueued(fileObj);

		wpFileError(fileObj, swfuploadL10n.invalid_filetype);

	}

	else {

		wpQueueError(swfuploadL10n.default_error);

	}

}

function fileDialogComplete(num_files_queued) {

	try {

		if (num_files_queued > 0) {

			this.startUpload();

		}

	} catch (ex) {

		this.debug(ex);

	}

}

function switchUploader(s) {

	var f = document.getElementById(swfu.customSettings.swfupload_element_id), h = document.getElementById(swfu.customSettings.degraded_element_id);

	if ( s ) {

		f.style.display = 'block';

		h.style.display = 'none';

	} else {

		f.style.display = 'none';

		h.style.display = 'block';

	}

}

function swfuploadPreLoad() {

	if ( !uploaderMode ) {

		switchUploader(1);

	} else {

		switchUploader(0);

	}

}

function swfuploadLoadFailed() {

	switchUploader(0);

	jQuery('.upload-html-bypass').hide();

}

function uploadError(fileObj, errorCode, message) {

	switch (errorCode) {

		case SWFUpload.UPLOAD_ERROR.MISSING_UPLOAD_URL:

			wpFileError(fileObj, swfuploadL10n.missing_upload_url);

			break;

		case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:

			wpFileError(fileObj, swfuploadL10n.upload_limit_exceeded);

			break;

		case SWFUpload.UPLOAD_ERROR.HTTP_ERROR:

			wpQueueError(swfuploadL10n.http_error);

			break;

		case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:

			wpQueueError(swfuploadL10n.upload_failed);

			break;

		case SWFUpload.UPLOAD_ERROR.IO_ERROR:

			wpQueueError(swfuploadL10n.io_error);

			break;

		case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:

			wpQueueError(swfuploadL10n.security_error);

			break;

		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:

		case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:

			jQuery('#media-item-' + fileObj.id).remove();

			break;

		default:

			wpFileError(fileObj, swfuploadL10n.default_error);

	}

}

function cancelUpload() {

	swfu.cancelQueue();

}

// remember the last used image size, alignment and url

var storeState;

(function($){

storeState = function(){

	var align = getUserSetting('align') || '', imgsize = getUserSetting('imgsize') || '';

	$('tr.align input[type="radio"]').click(function(){

		setUserSetting('align', $(this).val());

	}).filter(function(){

		if ( $(this).val() == align )

			return true;

		return false;

	}).attr('checked','checked');

	$('tr.image-size input[type="radio"]').click(function(){

		setUserSetting('imgsize', $(this).val());

	}).filter(function(){

		if ( $(this).attr('disabled') || $(this).val() != imgsize )

			return false;

		return true;

	}).attr('checked','checked');

	$('tr.url button').click(function(){

		var c = this.className || '';

		c = c.replace(/.*?(url[^ '"]+).*/, '$1');

		if (c) setUserSetting('urlbutton', c);

		$(this).siblings('.urlfield').val( $(this).attr('title') );

	});

	$('tr.url .urlfield').each(function(){

		var b = getUserSetting('urlbutton');

		$(this).val( $(this).siblings('button.'+b).attr('title') );

	});

}

})(jQuery);