Files={

  	// file space size sync
  	_updateStorageStatistics: function() {
  		Files._updateStorageStatisticsTimeout = null;
  		var currentDir = FileList.getCurrentDirectory(),
  			state = Files.updateStorageStatistics;
  		if (state.dir){
  			if (state.dir === currentDir) {
  				return;

  			}

  			// cancel previous call, as it was for another dir
  			state.call.abort();
  		}
  		state.dir = currentDir;
  		state.call = $.getJSON(OC.filePath('files','ajax','getstoragestats.php') + '?dir=' + encodeURIComponent(currentDir),function(response) {
  			state.dir = null;
  			state.call = null;
  			Files.updateMaxUploadFilesize(response);

  		});

  	},

  	updateStorageStatistics: function(force) {
  		if (!OC.currentUser) {
  			return;
  		}
  
  		// debounce to prevent calling too often
  		if (Files._updateStorageStatisticsTimeout) {
  			clearTimeout(Files._updateStorageStatisticsTimeout);
  		}
  		if (force) {
  			Files._updateStorageStatistics();
  		}
  		else {
  			Files._updateStorageStatisticsTimeout = setTimeout(Files._updateStorageStatistics, 250);
  		}
  	},

  	updateMaxUploadFilesize:function(response) {

  		if (response === undefined) {

  			return;
  		}

  		if (response.data !== undefined && response.data.uploadMaxFilesize !== undefined) {

  			$('#max_upload').val(response.data.uploadMaxFilesize);
  			$('#upload.button').attr('original-title', response.data.maxHumanFilesize);
  			$('#usedSpacePercent').val(response.data.usedSpacePercent);
  			Files.displayStorageWarnings();
  		}

  		if (response[0] === undefined) {

  			return;
  		}

  		if (response[0].uploadMaxFilesize !== undefined) {

  			$('#max_upload').val(response[0].uploadMaxFilesize);
  			$('#upload.button').attr('original-title', response[0].maxHumanFilesize);
  			$('#usedSpacePercent').val(response[0].usedSpacePercent);
  			Files.displayStorageWarnings();
  		}
  
  	},

  
  	/**
  	 * Fix path name by removing double slash at the beginning, if any
  	 */
  	fixPath: function(fileName) {
  		if (fileName.substr(0, 2) == '//') {
  			return fileName.substr(1);
  		}
  		return fileName;
  	},

  	isFileNameValid:function (name) {
  		if (name === '.') {

  			throw t('files', '\'.\' is an invalid file name.');
  		} else if (name.length === 0) {
  			throw t('files', 'File name cannot be empty.');

  		}
  
  		// check for invalid characters
  		var invalid_characters = ['\\', '/', '<', '>', ':', '"', '|', '?', '*'];
  		for (var i = 0; i < invalid_characters.length; i++) {

  			if (name.indexOf(invalid_characters[i]) !== -1) {
  				throw t('files', "Invalid name, '\\', '/', '<', '>', ':', '\"', '|', '?' and '*' are not allowed.");

  			}
  		}

  		return true;
  	},
  	displayStorageWarnings: function() {
  		if (!OC.Notification.isHidden()) {
  			return;
  		}
  
  		var usedSpacePercent = $('#usedSpacePercent').val();
  		if (usedSpacePercent > 98) {
  			OC.Notification.show(t('files', 'Your storage is full, files can not be updated or synced anymore!'));
  			return;
  		}
  		if (usedSpacePercent > 90) {
  			OC.Notification.show(t('files', 'Your storage is almost full ({usedSpacePercent}%)', {usedSpacePercent: usedSpacePercent}));
  		}

  	},
  
  	displayEncryptionWarning: function() {
  
  		if (!OC.Notification.isHidden()) {
  			return;
  		}
  
  		var encryptedFiles = $('#encryptedFiles').val();
  		var initStatus = $('#encryptionInitStatus').val();
  		if (initStatus === '0') { // enc not initialized, but should be
  			OC.Notification.show(t('files_encryption', 'Encryption App is enabled but your keys are not initialized, please log-out and log-in again'));
  			return;
  		}
  		if (initStatus === '1') { // encryption tried to init but failed
  			OC.Notification.showHtml(t('files_encryption', 'Invalid private key for Encryption App. Please update your private key password in your personal settings to recover access to your encrypted files.'));
  			return;
  		}
  		if (encryptedFiles === '1') {
  			OC.Notification.show(t('files_encryption', 'Encryption was disabled but your files are still encrypted. Please go to your personal settings to decrypt your files.'));
  			return;
  		}
  	},
  
  	setupDragAndDrop: function() {
  		var $fileList = $('#fileList');
  
  		//drag/drop of files
  		$fileList.find('tr td.filename').each(function(i,e) {
  			if ($(e).parent().data('permissions') & OC.PERMISSION_DELETE) {
  				$(e).draggable(dragOptions);
  			}
  		});
  
  		$fileList.find('tr[data-type="dir"] td.filename').each(function(i,e) {
  			if ($(e).parent().data('permissions') & OC.PERMISSION_CREATE) {
  				$(e).droppable(folderDropOptions);
  			}
  		});
  	},
  
  	lastWidth: 0,
  
  	initBreadCrumbs: function () {
  		var $controls = $('#controls');
  
  		Files.lastWidth = 0;
  		Files.breadcrumbs = [];
  
  		// initialize with some extra space
  		Files.breadcrumbsWidth = 64;
  		if ( document.getElementById("navigation") ) {
  			Files.breadcrumbsWidth += $('#navigation').get(0).offsetWidth;
  		}
  		Files.hiddenBreadcrumbs = 0;
  
  		$.each($('.crumb'), function(index, breadcrumb) {
  			Files.breadcrumbs[index] = breadcrumb;
  			Files.breadcrumbsWidth += $(breadcrumb).get(0).offsetWidth;
  		});
  
  		$.each($('#controls .actions>div'), function(index, action) {
  			Files.breadcrumbsWidth += $(action).get(0).offsetWidth;
  		});
  
  		// event handlers for breadcrumb items
  		$controls.find('.crumb a').on('click', onClickBreadcrumb);
  
  		// setup drag and drop
  		$controls.find('.crumb:not(.last)').droppable(crumbDropOptions);
  	},
  
  	resizeBreadcrumbs: function (width, firstRun) {
  		if (width !== Files.lastWidth) {
  			if ((width < Files.lastWidth || firstRun) && width < Files.breadcrumbsWidth) {
  				if (Files.hiddenBreadcrumbs === 0) {
  					Files.breadcrumbsWidth -= $(Files.breadcrumbs[1]).get(0).offsetWidth;
  					$(Files.breadcrumbs[1]).find('a').hide();
  					$(Files.breadcrumbs[1]).append('<span>...</span>');
  					Files.breadcrumbsWidth += $(Files.breadcrumbs[1]).get(0).offsetWidth;
  					Files.hiddenBreadcrumbs = 2;
  				}
  				var i = Files.hiddenBreadcrumbs;
  				while (width < Files.breadcrumbsWidth && i > 1 && i < Files.breadcrumbs.length - 1) {
  					Files.breadcrumbsWidth -= $(Files.breadcrumbs[i]).get(0).offsetWidth;
  					$(Files.breadcrumbs[i]).hide();
  					Files.hiddenBreadcrumbs = i;
  					i++;
  				}
  			} else if (width > Files.lastWidth && Files.hiddenBreadcrumbs > 0) {
  				var i = Files.hiddenBreadcrumbs;
  				while (width > Files.breadcrumbsWidth && i > 0) {
  					if (Files.hiddenBreadcrumbs === 1) {
  						Files.breadcrumbsWidth -= $(Files.breadcrumbs[1]).get(0).offsetWidth;
  						$(Files.breadcrumbs[1]).find('span').remove();
  						$(Files.breadcrumbs[1]).find('a').show();
  						Files.breadcrumbsWidth += $(Files.breadcrumbs[1]).get(0).offsetWidth;
  					} else {
  						$(Files.breadcrumbs[i]).show();
  						Files.breadcrumbsWidth += $(Files.breadcrumbs[i]).get(0).offsetWidth;
  						if (Files.breadcrumbsWidth > width) {
  							Files.breadcrumbsWidth -= $(Files.breadcrumbs[i]).get(0).offsetWidth;
  							$(Files.breadcrumbs[i]).hide();
  							break;
  						}
  					}
  					i--;
  					Files.hiddenBreadcrumbs = i;
  				}
  			}
  			Files.lastWidth = width;
  		}

  	}
  };
  $(document).ready(function() {

  	// FIXME: workaround for trashbin app
  	if (window.trashBinApp) {
  		return;
  	}
  	Files.displayEncryptionWarning();

  	Files.bindKeyboardShortcuts(document, jQuery);

  
  	FileList.postProcessList();
  	Files.setupDragAndDrop();

  
  	$('#file_action_panel').attr('activeAction', false);

  	// allow dropping on the "files" app icon
  	$('ul#apps li:first-child').data('dir','').droppable(crumbDropOptions);

  
  	// Triggers invisible file input
  	$('#upload a').on('click', function() {
  		$(this).parent().children('#file_upload_start').trigger('click');
  		return false;
  	});
  
  	// Trigger cancelling of file upload
  	$('#uploadprogresswrapper .stop').on('click', function() {

  		OC.Upload.cancelUploads();
  		procesSelection();

  	});
  
  	// Show trash bin

  	$('#trash').on('click', function() {

  		window.location=OC.filePath('files_trashbin', '', 'index.php');
  	});
  
  	var lastChecked;
  
  	// Sets the file link behaviour :
  	$('#fileList').on('click','td.filename a',function(event) {
  		if (event.ctrlKey || event.shiftKey) {
  			event.preventDefault();
  			if (event.shiftKey) {
  				var last = $(lastChecked).parent().parent().prevAll().length;
  				var first = $(this).parent().parent().prevAll().length;
  				var start = Math.min(first, last);
  				var end = Math.max(first, last);
  				var rows = $(this).parent().parent().parent().children('tr');
  				for (var i = start; i < end; i++) {
  					$(rows).each(function(index) {

  						if (index === i) {

  							var checkbox = $(this).children().children('input:checkbox');
  							$(checkbox).attr('checked', 'checked');
  							$(checkbox).parent().parent().addClass('selected');
  						}
  					});
  				}
  			}
  			var checkbox = $(this).parent().children('input:checkbox');
  			lastChecked = checkbox;
  			if ($(checkbox).attr('checked')) {
  				$(checkbox).removeAttr('checked');
  				$(checkbox).parent().parent().removeClass('selected');
  				$('#select_all').removeAttr('checked');
  			} else {
  				$(checkbox).attr('checked', 'checked');
  				$(checkbox).parent().parent().toggleClass('selected');

  				var selectedCount = $('td.filename input:checkbox:checked').length;
  				if (selectedCount === $('td.filename input:checkbox').length) {

  					$('#select_all').attr('checked', 'checked');
  				}
  			}
  			procesSelection();
  		} else {
  			var filename=$(this).parent().parent().attr('data-file');

  			var tr=$('tr[data-file="'+filename+'"]');

  			var renaming=tr.data('renaming');

  			if (!renaming && !FileList.isLoading(filename)) {

  				FileActions.currentFile = $(this).parent();
  				var mime=FileActions.getCurrentMimeType();
  				var type=FileActions.getCurrentType();
  				var permissions = FileActions.getCurrentPermissions();
  				var action=FileActions.getDefault(mime,type, permissions);

  				if (action) {

  					event.preventDefault();
  					action(filename);
  				}
  			}
  		}
  
  	});
  
  	// Sets the select_all checkbox behaviour :
  	$('#select_all').click(function() {

  		if ($(this).attr('checked')) {

  			// Check all
  			$('td.filename input:checkbox').attr('checked', true);
  			$('td.filename input:checkbox').parent().parent().addClass('selected');

  		} else {

  			// Uncheck all
  			$('td.filename input:checkbox').attr('checked', false);
  			$('td.filename input:checkbox').parent().parent().removeClass('selected');
  		}
  		procesSelection();
  	});
  
  	$('#fileList').on('change', 'td.filename input:checkbox',function(event) {
  		if (event.shiftKey) {
  			var last = $(lastChecked).parent().parent().prevAll().length;
  			var first = $(this).parent().parent().prevAll().length;
  			var start = Math.min(first, last);
  			var end = Math.max(first, last);
  			var rows = $(this).parent().parent().parent().children('tr');
  			for (var i = start; i < end; i++) {
  				$(rows).each(function(index) {

  					if (index === i) {

  						var checkbox = $(this).children().children('input:checkbox');
  						$(checkbox).attr('checked', 'checked');
  						$(checkbox).parent().parent().addClass('selected');
  					}
  				});
  			}
  		}
  		var selectedCount=$('td.filename input:checkbox:checked').length;
  		$(this).parent().parent().toggleClass('selected');

  		if (!$(this).attr('checked')) {

  			$('#select_all').attr('checked',false);

  		} else {
  			if (selectedCount===$('td.filename input:checkbox').length) {

  				$('#select_all').attr('checked',true);
  			}
  		}
  		procesSelection();
  	});
  
  	$('.download').click('click',function(event) {

  		var files=getSelectedFilesTrash('name');

  		var fileslist = JSON.stringify(files);
  		var dir=$('#dir').val()||'/';
  		OC.Notification.show(t('files','Your download is being prepared. This might take some time if the files are big.'));
  		// use special download URL if provided, e.g. for public shared files

  		var downloadURL = document.getElementById("downloadURL");
  		if ( downloadURL ) {
  			window.location = downloadURL.value+"&download&files=" + encodeURIComponent(fileslist);

  		} else {

  			window.location = OC.filePath('files', 'ajax', 'download.php') + '?'+ $.param({ dir: dir, files: fileslist });

  		}
  		return false;
  	});
  
  	$('.delete-selected').click(function(event) {

  		var files=getSelectedFilesTrash('name');

  		event.preventDefault();
  		FileList.do_delete(files);
  		return false;
  	});
  
  	// drag&drop support using jquery.fileupload
  	// TODO use OC.dialogs
  	$(document).bind('drop dragover', function (e) {
  			e.preventDefault(); // prevent browser from doing anything, if file isn't dropped in dropZone
  	});

  	//do a background scan if needed
  	scanFiles();

  	Files.initBreadCrumbs();

  
  	$(window).resize(function() {

  		var width = $(this).width();
  		Files.resizeBreadcrumbs(width, false);

  	});

  	var width = $(this).width();
  	Files.resizeBreadcrumbs(width, true);

  
  	// display storage warnings
  	setTimeout ( "Files.displayStorageWarnings()", 100 );
  	OC.Notification.setDefault(Files.displayStorageWarnings);

  	// only possible at the moment if user is logged in
  	if (OC.currentUser) {
  		// start on load - we ask the server every 5 minutes
  		var updateStorageStatisticsInterval = 5*60*1000;
  		var updateStorageStatisticsIntervalId = setInterval(Files.updateStorageStatistics, updateStorageStatisticsInterval);
  
  		// Use jquery-visibility to de-/re-activate file stats sync
  		if ($.support.pageVisibility) {
  			$(document).on({
  				'show.visibility': function() {
  					if (!updateStorageStatisticsIntervalId) {
  						updateStorageStatisticsIntervalId = setInterval(Files.updateStorageStatistics, updateStorageStatisticsInterval);
  					}
  				},
  				'hide.visibility': function() {
  					clearInterval(updateStorageStatisticsIntervalId);
  					updateStorageStatisticsIntervalId = 0;
  				}
  			});
  		}

  	}

  	//scroll to and highlight preselected file
  	if (getURLParameter('scrollto')) {
  		FileList.scrollTo(getURLParameter('scrollto'));

  	}
  });

  function scanFiles(force, dir, users) {

  	if (!OC.currentUser) {
  		return;
  	}

  	if (!dir) {

  		dir = '';
  	}
  	force = !!force; //cast to bool
  	scanFiles.scanning = true;
  	var scannerEventSource;
  	if (users) {
  		var usersString;
  		if (users === 'all') {
  			usersString = users;
  		} else {
  			usersString = JSON.stringify(users);
  		}
  		scannerEventSource = new OC.EventSource(OC.filePath('files','ajax','scan.php'),{force: force,dir: dir, users: usersString});
  	} else {
  		scannerEventSource = new OC.EventSource(OC.filePath('files','ajax','scan.php'),{force: force,dir: dir});
  	}
  	scanFiles.cancel = scannerEventSource.close.bind(scannerEventSource);

  	scannerEventSource.listen('count',function(count) {
  		console.log(count + ' files scanned');

  	});

  	scannerEventSource.listen('folder',function(path) {
  		console.log('now scanning ' + path);

  	});

  	scannerEventSource.listen('done',function(count) {

  		scanFiles.scanning=false;

  		console.log('done after ' + count + ' files');
  		Files.updateStorageStatistics();

  	});

  	scannerEventSource.listen('user',function(user) {

  		console.log('scanning files for ' + user);
  	});
  }
  scanFiles.scanning=false;
  
  function boolOperationFinished(data, callback) {
  	result = jQuery.parseJSON(data.responseText);
  	Files.updateMaxUploadFilesize(result);

  	if (result.status === 'success') {

  		callback.call();
  	} else {
  		alert(result.data.message);
  	}
  }

  var createDragShadow = function(event) {

  	//select dragged file
  	var isDragSelected = $(event.target).parents('tr').find('td input:first').prop('checked');
  	if (!isDragSelected) {
  		//select dragged file
  		$(event.target).parents('tr').find('td input:first').prop('checked',true);
  	}

  	var selectedFiles = getSelectedFilesTrash();

  	if (!isDragSelected && selectedFiles.length === 1) {

  		//revert the selection
  		$(event.target).parents('tr').find('td input:first').prop('checked',false);
  	}
  
  	//also update class when we dragged more than one file
  	if (selectedFiles.length > 1) {
  		$(event.target).parents('tr').addClass('selected');
  	}
  
  	// build dragshadow
  	var dragshadow = $('<table class="dragshadow"></table>');
  	var tbody = $('<tbody></tbody>');
  	dragshadow.append(tbody);
  
  	var dir=$('#dir').val();

  	$(selectedFiles).each(function(i,elem) {

  		var newtr = $('<tr/>').attr('data-dir', dir).attr('data-filename', elem.name);
  		newtr.append($('<td/>').addClass('filename').text(elem.name));
  		newtr.append($('<td/>').addClass('size').text(humanFileSize(elem.size)));
  		tbody.append(newtr);
  		if (elem.type === 'dir') {
  			newtr.find('td.filename').attr('style','background-image:url('+OC.imagePath('core', 'filetypes/folder.png')+')');
  		} else {

  			var path = getPathForPreview(elem.name);
  			Files.lazyLoadPreview(path, elem.mime, function(previewpath) {
  				newtr.find('td.filename').attr('style','background-image:url('+previewpath+')');
  			}, null, null, elem.etag);

  		}
  	});
  
  	return dragshadow;

  };

  
  //options for file drag/drop
  var dragOptions={
  	revert: 'invalid', revertDuration: 300,

  	opacity: 0.7, zIndex: 100, appendTo: 'body', cursorAt: { left: 24, top: 18 },

  	helper: createDragShadow, cursor: 'move',
  	stop: function(event, ui) {
  		$('#fileList tr td.filename').addClass('ui-draggable');
  	}

  };

  // sane browsers support using the distance option
  if ( $('html.ie').length === 0) {
  	dragOptions['distance'] = 20;
  }
  
  var folderDropOptions={
  	drop: function( event, ui ) {
  		//don't allow moving a file into a selected folder
  		if ($(event.target).parents('tr').find('td input:first').prop('checked') === true) {
  			return false;
  		}
  
  		var target = $(this).closest('tr').data('file');
  
  		var files = ui.helper.find('tr');

  		$(files).each(function(i,row) {

  			var dir = $(row).data('dir');
  			var file = $(row).data('filename');
  			$.post(OC.filePath('files', 'ajax', 'move.php'), { dir: dir, file: file, target: dir+'/'+target }, function(result) {
  				if (result) {
  					if (result.status === 'success') {
  						//recalculate folder size

  						var oldSize = $('#fileList tr[data-file="'+target+'"]').data('size');
  						var newSize = oldSize + $('#fileList tr[data-file="'+file+'"]').data('size');
  						$('#fileList tr[data-file="'+target+'"]').data('size', newSize);
  						$('#fileList tr[data-file="'+target+'"]').find('td.filesize').text(humanFileSize(newSize));

  
  						FileList.remove(file);
  						procesSelection();
  						$('#notification').hide();
  					} else {
  						$('#notification').hide();
  						$('#notification').text(result.data.message);
  						$('#notification').fadeIn();
  					}
  				} else {

  					OC.dialogs.alert(t('files', 'Error moving file'), t('files', 'Error'));

  				}
  			});
  		});
  	},
  	tolerance: 'pointer'

  };

  
  var crumbDropOptions={
  	drop: function( event, ui ) {
  		var target=$(this).data('dir');

  		var dir = $('#dir').val();
  		while(dir.substr(0,1) === '/') {//remove extra leading /'s

  				dir=dir.substr(1);
  		}

  		dir = '/' + dir;
  		if (dir.substr(-1,1) !== '/') {
  			dir = dir + '/';

  		}

  		if (target === dir || target+'/' === dir) {

  			return;
  		}
  		var files = ui.helper.find('tr');

  		$(files).each(function(i,row) {

  			var dir = $(row).data('dir');
  			var file = $(row).data('filename');
  			$.post(OC.filePath('files', 'ajax', 'move.php'), { dir: dir, file: file, target: target }, function(result) {
  				if (result) {
  					if (result.status === 'success') {
  						FileList.remove(file);
  						procesSelection();
  						$('#notification').hide();
  					} else {
  						$('#notification').hide();
  						$('#notification').text(result.data.message);
  						$('#notification').fadeIn();
  					}
  				} else {

  					OC.dialogs.alert(t('files', 'Error moving file'), t('files', 'Error'));

  				}
  			});
  		});
  	},
  	tolerance: 'pointer'

  };

  function procesSelection() {
  	var selected = getSelectedFilesTrash();
  	var selectedFiles = selected.filter(function(el) {
  		return el.type==='file';
  	});
  	var selectedFolders = selected.filter(function(el) {
  		return el.type==='dir';
  	});
  	if (selectedFiles.length === 0 && selectedFolders.length === 0) {

  		$('#headerName>span.name').text(t('files','Name'));
  		$('#headerSize').text(t('files','Size'));
  		$('#modified').text(t('files','Modified'));
  		$('table').removeClass('multiselect');
  		$('.selectedActions').hide();
  	}
  	else {
  		$('.selectedActions').show();

  		var totalSize = 0;
  		for(var i=0; i<selectedFiles.length; i++) {

  			totalSize+=selectedFiles[i].size;
  		};

  		for(var i=0; i<selectedFolders.length; i++) {

  			totalSize+=selectedFolders[i].size;
  		};

  		$('#headerSize').text(humanFileSize(totalSize));
  		var selection = '';
  		if (selectedFolders.length > 0) {
  			selection += n('files', '%n folder', '%n folders', selectedFolders.length);
  			if (selectedFiles.length > 0) {
  				selection += ' & ';

  			}
  		}

  		if (selectedFiles.length>0) {
  			selection += n('files', '%n file', '%n files', selectedFiles.length);

  		}

  		$('#headerName span.name').text(selection);

  		$('#modified').text('');
  		$('table').addClass('multiselect');
  	}
  }
  
  /**
   * @brief get a list of selected files

   * @param {string} property (option) the property of the file requested
   * @return {array}

   *
   * possible values for property: name, mime, size and type
   * if property is set, an array with that property for each file is returnd
   * if it's ommited an array of objects with all properties is returned
   */

  function getSelectedFilesTrash(property) {

  	var elements=$('td.filename input:checkbox:checked').parent().parent();
  	var files=[];

  	elements.each(function(i,element) {

  		var file={
  			name:$(element).attr('data-file'),
  			mime:$(element).data('mime'),
  			type:$(element).data('type'),

  			size:$(element).data('size'),
  			etag:$(element).data('etag')

  		};

  		if (property) {

  			files.push(file[property]);

  		} else {

  			files.push(file);
  		}
  	});
  	return files;
  }

  Files.getMimeIcon = function(mime, ready) {
  	if (Files.getMimeIcon.cache[mime]) {
  		ready(Files.getMimeIcon.cache[mime]);
  	} else {
  		$.get( OC.filePath('files','ajax','mimeicon.php'), {mime: mime}, function(path) {
  			Files.getMimeIcon.cache[mime]=path;
  			ready(Files.getMimeIcon.cache[mime]);

  		});
  	}
  }

  Files.getMimeIcon.cache={};

  function getPathForPreview(name) {
  	var path = $('#dir').val() + '/' + name;
  	return path;
  }
  
  Files.lazyLoadPreview = function(path, mime, ready, width, height, etag) {
  	// get mime icon url
  	Files.getMimeIcon(mime, function(iconURL) {
  		var urlSpec = {};
  		var previewURL;
  		ready(iconURL); // set mimeicon URL
  
  		// now try getting a preview thumbnail URL
  		if ( ! width ) {
  			width = $('#filestable').data('preview-x');
  		}
  		if ( ! height ) {
  			height = $('#filestable').data('preview-y');
  		}
  		// note: the order of arguments must match the one
  		// from the server's template so that the browser
  		// knows it's the same file for caching
  		urlSpec.x = width;
  		urlSpec.y = height;
  		urlSpec.file = Files.fixPath(path);
  
  		if (etag){
  			// use etag as cache buster
  			urlSpec.c = etag;
  		}
  		else {
  			console.warn('Files.lazyLoadPreview(): missing etag argument');
  		}
  
  		if ( $('#publicUploadButtonMock').length ) {
  			urlSpec.t = $('#dirToken').val();
  			previewURL = OC.Router.generate('core_ajax_public_preview', urlSpec);
  		} else {
  			previewURL = OC.Router.generate('core_ajax_preview', urlSpec);
  		}
  		previewURL = previewURL.replace('(', '%28');
  		previewURL = previewURL.replace(')', '%29');
  
  		// preload image to prevent delay
  		// this will make the browser cache the image
  		var img = new Image();
  		img.onload = function(){
  			//set preview thumbnail URL
  			ready(previewURL);
  		}
  		img.src = previewURL;
  	});
  }
  
  function getUniqueName(name) {
  	if ($('tr[data-file="'+name+'"]').exists()) {

  		var parts=name.split('.');
  		var extension = "";
  		if (parts.length > 1) {
  			extension=parts.pop();
  		}
  		var base=parts.join('.');
  		numMatch=base.match(/\((\d+)\)/);
  		var num=2;

  		if (numMatch && numMatch.length>0) {

  			num=parseInt(numMatch[numMatch.length-1])+1;

  			base=base.split('(');

  			base.pop();
  			base=$.trim(base.join('('));
  		}
  		name=base+' ('+num+')';
  		if (extension) {
  			name = name+'.'+extension;
  		}
  		return getUniqueName(name);
  	}
  	return name;
  }

  
  function checkTrashStatus() {
  	$.post(OC.filePath('files_trashbin', 'ajax', 'isEmpty.php'), function(result) {
  		if (result.data.isEmpty === false) {
  			$("input[type=button][id=trash]").removeAttr("disabled");
  		}
  	});
  }
  
  function onClickBreadcrumb(e) {
  	var $el = $(e.target).closest('.crumb'),
  		$targetDir = $el.data('dir');
  		isPublic = !!$('#isPublic').val();
  
  	if ($targetDir !== undefined && !isPublic) {
  		e.preventDefault();
  		FileList.changeDirectory(decodeURIComponent($targetDir));
  	}
  }