var topWin = window.dialogArguments || opener || parent || top, uploader, uploader_init;

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();

	var items = jQuery('#media-items').children(), postid = post_id || 0;

	// Collapse a single item

	if ( items.length == 1 ) {

		items.removeClass('open').find('.slidetoggle').slideUp(200);

	}

	// Create a progress bar containing the filename

	jQuery('<div class="media-item">')

		.attr( 'id', 'media-item-' + fileObj.id )

		.addClass('child-of-' + postid)

		.append('<div class="progress"><div class="percent">0%</div><div class="bar"></div></div>',

			jQuery('<div class="filename original">').text( ' ' + fileObj.name ))

		.appendTo( jQuery('#media-items' ) );

	// Disable submit

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

}

function uploadStart() {

	try {

		if ( typeof topWin.tb_remove != 'undefined' )

			topWin.jQuery('#TB_overlay').unbind('click', topWin.tb_remove);

	} catch(e){}

	return true;

}

function uploadProgress(up, file) {

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

	jQuery('.bar', item).width( (200 * file.loaded) / file.size );

	jQuery('.percent', item).html( file.percent + '%' );

}

// check to see if a large file failed to upload

function fileUploading(up, file) {

	var hundredmb = 100 * 1024 * 1024, max = parseInt(up.settings.max_file_size, 10);

	if ( max > hundredmb && file.size > hundredmb ) {

		setTimeout(function(){

			var done;

			if ( file.status < 3 && file.loaded == 0 ) { // not uploading

				wpFileError(file, pluploadL10n.big_upload_failed.replace('%1$s', '<a class="uploader-html" href="#">').replace('%2$s', '</a>'));

				up.stop(); // stops the whole queue

				up.removeFile(file);

				up.start(); // restart the queue

			}

		}, 10000); // wait for 10 sec. for the file to start uploading

	}

}

function updateMediaForm() {

	var items = jQuery('#media-items').children();

	// Just one file, no need for collapsible part

	if ( items.length == 1 ) {

		items.addClass('open').find('.slidetoggle').show();

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

	} else if ( items.length > 1 ) {

		items.removeClass('open');

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

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

	}

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

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

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

	else

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

}

function uploadSuccess(fileObj, serverData) {

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

	// on success serverData should be numeric, fix bug in html4 runtime returning the serverData wrapped in a <pre> tag

	serverData = serverData.replace(/^<pre>(\d+)<\/pre>$/, '$1');

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

	if ( serverData.match(/media-upload-error|error-div/) ) {

		item.html(serverData);

		return;

	} else {

		jQuery('.percent', item).html( pluploadL10n.crunching );

	}

	prepareMediaItem(fileObj, serverData);

	updateMediaForm();

	// Increment the counter.

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

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

}

function setResize(arg) {

	if ( arg ) {

		if ( uploader.features.jpgresize )

			uploader.settings['resize'] = { width: resize_width, height: resize_height, quality: 100 };

		else

			uploader.settings.multipart_params.image_resize = true;

	} else {

		delete(uploader.settings.resize);

		delete(uploader.settings.multipart_params.image_resize);

	}

}

function prepareMediaItem(fileObj, serverData) {

	var f = ( typeof shortform == 'undefined' ) ? 1 : 2, item = jQuery('#media-item-' + fileObj.id);

	if ( f == 2 && shortform > 2 )

		f = shortform;

	try {

		if ( typeof topWin.tb_remove != 'undefined' )

			topWin.jQuery('#TB_overlay').click(topWin.tb_remove);

	} catch(e){}

	if ( isNaN(serverData) || !serverData ) { // Old style: Append the HTML returned by the server -- thumbnail and form inputs

		item.append(serverData);

		prepareMediaItemInit(fileObj);

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

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

	}

}

function prepareMediaItemInit(fileObj) {

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

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

	jQuery('.thumbnail', item).clone().attr('class', 'pinkynail toggle').prependTo(item);

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

	jQuery('.filename.original', item).replaceWith( jQuery('.filename.new', item) );

	// Bind AJAX to the new Delete button

	jQuery('a.delete', item).click(function(){

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

		jQuery.ajax({

			url: ajaxurl,

			type: 'post',

			success: deleteSuccess,

			error: deleteError,

			id: fileObj.id,

			data: {

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

				action : 'trash-post',

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

			}

		});

		return false;

	});

	// Bind AJAX to the new Undo button

	jQuery('a.undo', item).click(function(){

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

		jQuery.ajax({

			url: ajaxurl,

			type: 'post',

			id: fileObj.id,

			data: {

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

				action: 'untrash-post',

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

			},

			success: function(data, textStatus){

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

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

					jQuery('#' + type + '-counter').text(jQuery('#' + type + '-counter').text()-0+1);

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

					jQuery('#attachments-count').text(jQuery('#attachments-count').text()-0+1);

				jQuery('.filename .trashnotice', item).remove();

				jQuery('.filename .title', item).css('font-weight','normal');

				jQuery('a.undo', item).addClass('hidden');

				jQuery('.menu_order_input', item).show();

				item.css( {backgroundColor:'#ceb'} ).animate( {backgroundColor: '#fff'}, { queue: false, duration: 500, complete: function(){ jQuery(this).css({backgroundColor:''}); } }).removeClass('undo');

			}

		});

		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').addClass('open').find('slidetoggle').fadeIn();

}

// generic error message

function wpQueueError(message) {

	jQuery('#media-upload-error').show().html( '<div class="error"><p>' + message + '</p></div>' );

}

// file-specific error messages

function wpFileError(fileObj, message) {

	itemAjaxError(fileObj.id, message);

}

function itemAjaxError(id, message) {

	var item = jQuery('#media-item-' + id), filename = item.find('.filename').text(), last_err = item.data('last-err');

	if ( last_err == id ) // prevent firing an error for the same file twice

		return;

	item.html('<div class="error-div">'

				+ '<a class="dismiss" href="#">' + pluploadL10n.dismiss + '</a>'

				+ '<strong>' + pluploadL10n.error_uploading.replace('%s', jQuery.trim(filename)) + '</strong> '

				+ message

				+ '</div>').data('last-err', id);

}

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

	// Decrement the counters.

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

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

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

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

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

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

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

	}

	// Vanish it.

	jQuery('.toggle', item).toggle();

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

	item.css( {backgroundColor:'#faa'} ).animate( {backgroundColor:'#f4f4f4'}, {queue:false, duration:500} ).addClass('undo');

	jQuery('.filename:empty', item).remove();

	jQuery('.filename .title', item).css('font-weight','bold');

	jQuery('.filename', item).append('<span class="trashnotice"> ' + pluploadL10n.deleted + ' </span>').siblings('a.toggle').hide();

	jQuery('.filename', item).append( jQuery('a.undo', item).removeClass('hidden') );

	jQuery('.menu_order_input', item).hide();

	return;

}

function deleteError(X, textStatus, errorThrown) {

	// TODO

}

function uploadComplete() {

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

}

function switchUploader(s) {

	if ( s ) {

		deleteUserSetting('uploader');

		jQuery('.media-upload-form').removeClass('html-uploader');

		if ( typeof(uploader) == 'object' )

			uploader.refresh();

	} else {

		setUserSetting('uploader', '1'); // 1 == html uploader

		jQuery('.media-upload-form').addClass('html-uploader');

	}

}

function dndHelper(s) {

	var d = document.getElementById('dnd-helper');

	if ( s ) {

		d.style.display = 'block';

	} else {

		d.style.display = 'none';

	}

}

function uploadError(fileObj, errorCode, message, uploader) {

	var hundredmb = 100 * 1024 * 1024, max;

	switch (errorCode) {

		case plupload.FAILED:

			wpFileError(fileObj, pluploadL10n.upload_failed);

			break;

		case plupload.FILE_EXTENSION_ERROR:

			wpFileError(fileObj, pluploadL10n.invalid_filetype);

			break;

		case plupload.FILE_SIZE_ERROR:

			uploadSizeError(uploader, fileObj);

			break;

		case plupload.IMAGE_FORMAT_ERROR:

			wpFileError(fileObj, pluploadL10n.not_an_image);

			break;

		case plupload.IMAGE_MEMORY_ERROR:

			wpFileError(fileObj, pluploadL10n.image_memory_exceeded);

			break;

		case plupload.IMAGE_DIMENSIONS_ERROR:

			wpFileError(fileObj, pluploadL10n.image_dimensions_exceeded);

			break;

		case plupload.GENERIC_ERROR:

			wpQueueError(pluploadL10n.upload_failed);

			break;

		case plupload.IO_ERROR:

			max = parseInt(uploader.settings.max_file_size, 10);

			if ( max > hundredmb && fileObj.size > hundredmb )

				wpFileError(fileObj, pluploadL10n.big_upload_failed.replace('%1$s', '<a class="uploader-html" href="#">').replace('%2$s', '</a>'));

			else

				wpQueueError(pluploadL10n.io_error);

			break;

		case plupload.HTTP_ERROR:

			wpQueueError(pluploadL10n.http_error);

			break;

		case plupload.INIT_ERROR:

			jQuery('.media-upload-form').addClass('html-uploader');

			break;

		case plupload.SECURITY_ERROR:

			wpQueueError(pluploadL10n.security_error);

			break;

/*		case plupload.UPLOAD_ERROR.UPLOAD_STOPPED:

		case plupload.UPLOAD_ERROR.FILE_CANCELLED:

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

			break;*/

		default:

			wpFileError(fileObj, pluploadL10n.default_error);

	}

}

function uploadSizeError( up, file, over100mb ) {

	var message;

	if ( over100mb )

		message = pluploadL10n.big_upload_queued.replace('%s', file.name) + ' ' + pluploadL10n.big_upload_failed.replace('%1$s', '<a class="uploader-html" href="#">').replace('%2$s', '</a>');

	else

		message = pluploadL10n.file_exceeds_size_limit.replace('%s', file.name);