path: root/apps/files/js/file-upload.js

/**
 * Function that will allow us to know if Ajax uploads are supported
 * @link https://github.com/New-Bamboo/example-ajax-upload/blob/master/public/index.html
 * also see article @link http://blog.new-bamboo.co.uk/2012/01/10/ridiculously-simple-ajax-uploads-with-formdata
 */
function supportAjaxUploadWithProgress() {
	return supportFileAPI() && supportAjaxUploadProgressEvents() && supportFormData();

	// Is the File API supported?
	function supportFileAPI() {
		var fi = document.createElement('INPUT');
		fi.type = 'file';
		return 'files' in fi;
	};

	// Are progress events supported?
	function supportAjaxUploadProgressEvents() {
		var xhr = new XMLHttpRequest();
		return !! (xhr && ('upload' in xhr) && ('onprogress' in xhr.upload));
	};

	// Is FormData supported?
	function supportFormData() {
		return !! window.FormData;
	}
}

$(document).ready(function() {

	if ( $('#file_upload_start').length ) {
		var file_upload_param = {
			dropZone: $('#content'), // restrict dropZone to content div
			//singleFileUploads is on by default, so the data.files array will always have length 1
			add: function(e, data) {

				if(data.files[0].type === '' && data.files[0].size == 4096)
				{
					data.textStatus = 'dirorzero';
					data.errorThrown = t('files','Unable to upload your file as it is a directory or has 0 bytes');
					var fu = $(this).data('blueimp-fileupload') || $(this).data('fileupload');
					fu._trigger('fail', e, data);
					return true; //don't upload this file but go on with next in queue
				}

				var totalSize=0;
				$.each(data.originalFiles, function(i,file){
					totalSize+=file.size;
				});

				if(totalSize>$('#max_upload').val()){
					data.textStatus = 'notenoughspace';
					data.errorThrown = t('files','Not enough space available');
					var fu = $(this).data('blueimp-fileupload') || $(this).data('fileupload');
					fu._trigger('fail', e, data);
					return false; //don't upload anything
				}

				// start the actual file upload
				var jqXHR = data.submit();

				// remember jqXHR to show warning to user when he navigates away but an upload is still in progress
				if (typeof data.context !== 'undefined' && data.context.data('type') === 'dir') {
					var dirName = data.context.data('file');
					if(typeof uploadingFiles[dirName] === 'undefined') {
						uploadingFiles[dirName] = {};
					}
					uploadingFiles[dirName][data.files[0].name] = jqXHR;
				} else {
					uploadingFiles[data.files[0].name] = jqXHR;
				}
			},
			submit: function(e, data) {
				if ( ! data.formData ) {
					// noone set update parameters, we set the minimum
					data.formData = {
						requesttoken: oc_requesttoken,
								 dir: $('#dir').val()
					};
				}
			},
			/**
			 * called after the first add, does NOT have the data param
			 * @param e
			 */
			start: function(e) {
			},
			fail: function(e, data) {
				if (typeof data.textStatus !== 'undefined' && data.textStatus !== 'success' ) {
					if (data.textStatus === 'abort') {
						$('#notification').text(t('files', 'Upload cancelled.'));
					} else {
						// HTTP connection problem
						$('#notification').text(data.errorThrown);
					}
					$('#notification').fadeIn();
					//hide notification after 5 sec
					setTimeout(function() {
						$('#notification').fadeOut();
					}, 5000);
				}
				delete uploadingFiles[data.files[0].name];
			},
			/**
			 * called for every successful upload
			 * @param e
			 * @param data
			 */
			done:function(e, data) {
				// handle different responses (json or body from iframe for ie)
				var response;
				if (typeof data.result === 'string') {
					response = data.result;
				} else {
					//fetch response from iframe
					response = data.result[0].body.innerText;
				}
				var result=$.parseJSON(response);

				if(typeof result[0] !== 'undefined' && result[0].status === 'success') {
					var filename = result[0].originalname;

					// delete jqXHR reference
					if (typeof data.context !== 'undefined' && data.context.data('type') === 'dir') {
						var dirName = data.context.data('file');
						delete uploadingFiles[dirName][filename];
						if ($.assocArraySize(uploadingFiles[dirName]) == 0) {
							delete uploadingFiles[dirName];
						}
					} else {
						delete uploadingFiles[filename];
					}
					var file = result[0];
				} else {
					data.textStatus = 'servererror';
					data.errorThrown = t('files', result.data.message);
					var fu = $(this).data('blueimp-fileupload') || $(this).data('fileupload');
					fu._trigger('fail', e, data);
				}
			},
			/**
			 * called after last upload
			 * @param e
			 * @param data
			 */
			stop: function(e, data) {
			}
		};

		// initialize jquery fileupload (blueimp)
		var fileupload = $('#file_upload_start').fileupload(file_upload_param);
		window.file_upload_param = fileupload;

		if(supportAjaxUploadWithProgress()) {

			// add progress handlers
			fileupload.on('fileuploadadd', function(e, data) {
				//show cancel button
				//if(data.dataType !== 'iframe') { //FIXME when is iframe used? only for ie?
				//	$('#uploadprogresswrapper input.stop').show();
				//}
			});
			// add progress handlers
			fileupload.on('fileuploadstart', function(e, data) {
				$('#uploadprogresswrapper input.stop').show();
				$('#uploadprogressbar').progressbar({value:0});
				$('#uploadprogressbar').fadeIn();
			});
			fileupload.on('fileuploadprogress', function(e, data) {
				//TODO progressbar in row
			});
			fileupload.on('fileuploadprogressall', function(e, data) {
				var progress = (data.loaded / data.total) * 100;
				$('#uploadprogressbar').progressbar('value', progress);
			});
			fileupload.on('fileuploadstop', function(e, data) {
				$('#uploadprogresswrapper input.stop').fadeOut();
				$('#uploadprogressbar').fadeOut();
				
			});
			fileupload.on('fileuploadfail', function(e, data) {
				//if user pressed cancel hide upload progress bar and cancel button
				if (data.errorThrown === 'abort') {
					$('#uploadprogresswrapper input.stop').fadeOut();
					$('#uploadprogressbar').fadeOut();
				}
			});

		} else {
			console.log('skipping file progress because your browser is broken');
		}
	}

	$.assocArraySize = function(obj) {
		// http://stackoverflow.com/a/6700/11236
		var size = 0, key;
		for (key in obj) {
			if (obj.hasOwnProperty(key)) size++;
		}
		return size;
	};

	// warn user not to leave the page while upload is in progress
	$(window).bind('beforeunload', function(e) {
		if ($.assocArraySize(uploadingFiles) > 0) {
			return t('files','File upload is in progress. Leaving the page now will cancel the upload.');
		}
	});

	//add multiply file upload attribute to all browsers except konqueror (which crashes when it's used)
	if(navigator.userAgent.search(/konqueror/i)==-1){
		$('#file_upload_start').attr('multiple','multiple');
	}

	//if the breadcrumb is to long, start by replacing foldernames with '...' except for the current folder
	var crumb=$('div.crumb').first();
	while($('div.controls').height()>40 && crumb.next('div.crumb').length>0){
		crumb.children('a').text('...');
		crumb=crumb.next('div.crumb');
	}
	//if that isn't enough, start removing items from the breacrumb except for the current folder and it's parent
	var crumb=$('div.crumb').first();
	var next=crumb.next('div.crumb');
	while($('div.controls').height()>40 && next.next('div.crumb').length>0){
		crumb.remove();
		crumb=next;
		next=crumb.next('div.crumb');
	}
	//still not enough, start shorting down the current folder name
	var crumb=$('div.crumb>a').last();
	while($('div.controls').height()>40 && crumb.text().length>6){
		var text=crumb.text()
		text=text.substr(0,text.length-6)+'...';
		crumb.text(text);
	}

	$(document).click(function(){
		$('#new>ul').hide();
		$('#new').removeClass('active');
		$('#new li').each(function(i,element){
			if($(element).children('p').length==0){
				$(element).children('form').remove();
				$(element).append('<p>'+$(element).data('text')+'</p>');
			}
		});
	});
	$('#new').click(function(event){
		event.stopPropagation();
	});
	$('#new>a').click(function(){
		$('#new>ul').toggle();
		$('#new').toggleClass('active');
	});
	$('#new li').click(function(){
		if($(this).children('p').length==0){
			return;
		}

		$('#new li').each(function(i,element){
			if($(element).children('p').length==0){
				$(element).children('form').remove();
				$(element).append('<p>'+$(element).data('text')+'</p>');
			}
		});

		var type=$(this).data('type');
		var text=$(this).children('p').text();
		$(this).data('text',text);
		$(this).children('p').remove();
		var form=$('<form></form>');
		var input=$('<input type="text">');
		form.append(input);
		$(this).append(form);
		input.focus();
		form.submit(function(event){
			event.stopPropagation();
			event.preventDefault();
			var newname=input.val();
			if(type == 'web' && newname.length == 0) {
				OC.Notification.show(t('files', 'URL cannot be empty.'));
				return false;
			} else if (type != 'web' && !Files.isFileNameValid(newname)) {
				return false;
			} else if( type == 'folder' && $('#dir').val() == '/' && newname == 'Shared') {
				OC.Notification.show(t('files','Invalid folder name. Usage of \'Shared\' is reserved by ownCloud'));
				return false;
			}
			if (FileList.lastAction) {
				FileList.lastAction();
			}
			var name = getUniqueName(newname);
			if (newname != name) {
				FileList.checkName(name, newname, true);
				var hidden = true;
			} else {
				var hidden = false;
			}
			switch(type){
				case 'file':
					$.post(
						OC.filePath('files','ajax','newfile.php'),
						{dir:$('#dir').val(),filename:name},
						function(result){
							if (result.status == 'success') {
								var date=new Date();
								FileList.addFile(name,0,date,false,hidden);
								var tr=$('tr').filterAttr('data-file',name);
								tr.attr('data-size',result.data.size);
								tr.attr('data-mime',result.data.mime);
								tr.attr('data-id', result.data.id);
								tr.find('.filesize').text(humanFileSize(result.data.size));
								var path = getPathForPreview(name);
								lazyLoadPreview(path, result.data.mime, function(previewpath){
									tr.find('td.filename').attr('style','background-image:url('+previewpath+')');
								});
							} else {
								OC.dialogs.alert(result.data.message, t('core', 'Error'));
							}
						}
					);
					break;
				case 'folder':
					$.post(
						OC.filePath('files','ajax','newfolder.php'),
						{dir:$('#dir').val(),foldername:name},
						function(result){
							if (result.status == 'success') {
								var date=new Date();
								FileList.addDir(name,0,date,hidden);
								var tr=$('tr').filterAttr('data-file',name);
								tr.attr('data-id', result.data.id);
							} else {
								OC.dialogs.alert(result.data.message, t('core', 'Error'));
							}
						}
					);
					break;
				case 'web':
					if(name.substr(0,8)!='https://' && name.substr(0,7)!='http://'){
						name='http://'+name;
					}
					var localName=name;
					if(localName.substr(localName.length-1,1)=='/'){//strip /
						localName=localName.substr(0,localName.length-1)
					}
					if(localName.indexOf('/')){//use last part of url
						localName=localName.split('/').pop();
					} else { //or the domain
						localName=(localName.match(/:\/\/(.[^\/]+)/)[1]).replace('www.','');
					}
					localName = getUniqueName(localName);
					//IE < 10 does not fire the necessary events for the progress bar.
					if($('html.lte9').length === 0) {
						$('#uploadprogressbar').progressbar({value:0});
						$('#uploadprogressbar').fadeIn();
					}

					var eventSource=new OC.EventSource(OC.filePath('files','ajax','newfile.php'),{dir:$('#dir').val(),source:name,filename:localName});
					eventSource.listen('progress',function(progress){
						//IE < 10 does not fire the necessary events for the progress bar.
						if($('html.lte9').length === 0) {
							$('#uploadprogressbar').progressbar('value',progress);
						}
					});
					eventSource.listen('success',function(data){
						var mime=data.mime;
						var size=data.size;
						var id=data.id;
						$('#uploadprogressbar').fadeOut();
						var date=new Date();
						FileList.addFile(localName,size,date,false,hidden);
						var tr=$('tr').filterAttr('data-file',localName);
						tr.data('mime',mime).data('id',id);
						tr.attr('data-id', id);
						var path = $('#dir').val()+'/'+localName;
						lazyLoadPreview(path, mime, function(previewpath){
							tr.find('td.filename').attr('style','background-image:url('+previewpath+')');
						});
					});
					eventSource.listen('error',function(error){
						$('#uploadprogressbar').fadeOut();
						alert(error);
					});
					break;
			}
			var li=form.parent();
			form.remove();
			/* workaround for IE 9&10 click event trap, 2 lines: */
			$('input').first().focus();
			$('#content').focus();
			li.append('<p>'+li.data('text')+'</p>');
			$('#new>a').click();
		});
	});
});