nextcloud/apps/files/js/files.js

515 lines
15 KiB
JavaScript

/*
* Copyright (c) 2014
*
* This file is licensed under the Affero General Public License version 3
* or later.
*
* See the COPYING-README file.
*
*/
/* global OC, t, FileList */
/* global getURLParameter */
var 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);
$('#free_space').val(response.data.freeSpace);
$('#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;
},
/**
* Checks whether the given file name is valid.
* @param name file name to check
* @return true if the file name is valid.
* Throws a string exception with an error message if
* the file name is not valid
*/
isFileNameValid: function (name) {
var trimmedName = name.trim();
if (trimmedName === '.' || trimmedName === '..')
{
throw t('files', '"{name}" is an invalid file name.', {name: name});
} else if (trimmedName.length === 0) {
throw t('files', 'File name cannot be empty.');
}
// check for invalid characters
var invalidCharacters =
['\\', '/', '<', '>', ':', '"', '|', '?', '*', '\n'];
for (var i = 0; i < invalidCharacters.length; i++) {
if (trimmedName.indexOf(invalidCharacters[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 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.show(t('files', '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 was disabled but your files are still encrypted. Please go to your personal settings to decrypt your files.'));
return;
}
},
// TODO: move to FileList class
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) {
$(e).droppable(folderDropOptions);
}
});
},
/**
* Returns the download URL of the given file(s)
* @param filename string or array of file names to download
* @param dir optional directory in which the file name is, defaults to the current directory
*/
getDownloadUrl: function(filename, dir) {
if ($.isArray(filename)) {
filename = JSON.stringify(filename);
}
var params = {
dir: dir || FileList.getCurrentDirectory(),
files: filename
};
return this.getAjaxUrl('download', params);
},
/**
* Returns the ajax URL for a given action
* @param action action string
* @param params optional params map
*/
getAjaxUrl: function(action, params) {
var q = '';
if (params) {
q = '?' + OC.buildQueryString(params);
}
return OC.filePath('files', 'ajax', action + '.php') + q;
}
};
$(document).ready(function() {
// FIXME: workaround for trashbin app
if (window.trashBinApp) {
return;
}
Files.displayEncryptionWarning();
Files.bindKeyboardShortcuts(document, jQuery);
Files.setupDragAndDrop();
$('#file_action_panel').attr('activeAction', false);
// 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();
FileList.updateSelectionSummary();
});
// Show trash bin
$('#trash').on('click', function() {
window.location=OC.filePath('files_trashbin', '', 'index.php');
});
// drag&drop support using jquery.fileupload
// TODO use OC.dialogs
$(document).bind('drop dragover', function (e) {
e.preventDefault(); // prevent browser from doing anything, if file isn't dropped in dropZone
});
//do a background scan if needed
scanFiles();
// display storage warnings
setTimeout(Files.displayStorageWarnings, 100);
OC.Notification.setDefault(Files.displayStorageWarnings);
// only possible at the moment if user is logged in
if (OC.currentUser) {
// start on load - we ask the server every 5 minutes
var updateStorageStatisticsInterval = 5*60*1000;
var updateStorageStatisticsIntervalId = setInterval(Files.updateStorageStatistics, updateStorageStatisticsInterval);
// Use jquery-visibility to de-/re-activate file stats sync
if ($.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;
// TODO: move to FileList
var createDragShadow = function(event) {
//select dragged file
var isDragSelected = $(event.target).parents('tr').find('td input:first').prop('checked');
if (!isDragSelected) {
//select dragged file
FileList._selectFileEl($(event.target).parents('tr:first'), true);
}
// do not show drag shadow for too many files
var selectedFiles = _.first(FileList.getSelectedFiles(), FileList.pageSize);
selectedFiles.sort(FileList._fileInfoCompare);
if (!isDragSelected && selectedFiles.length === 1) {
//revert the selection
FileList._selectFileEl($(event.target).parents('tr:first'), false);
}
// 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 = $('<tr/>')
.attr('data-dir', dir)
.attr('data-file', elem.name)
.attr('data-origin', elem.origin);
newtr.append($('<td/>').addClass('filename').text(elem.name));
newtr.append($('<td/>').addClass('size').text(OC.Util.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
//start&stop handlers needs some cleaning up
// TODO: move to FileList class
var dragOptions={
revert: 'invalid', revertDuration: 300,
opacity: 0.7, zIndex: 100, appendTo: 'body', cursorAt: { left: 24, top: 18 },
helper: createDragShadow, cursor: 'move',
start: function(event, ui){
var $selectedFiles = $('td.filename input:checkbox:checked');
if($selectedFiles.length > 1){
$selectedFiles.parents('tr').fadeTo(250, 0.2);
}
else{
$(this).fadeTo(250, 0.2);
}
},
stop: function(event, ui) {
var $selectedFiles = $('td.filename input:checkbox:checked');
if($selectedFiles.length > 1){
$selectedFiles.parents('tr').fadeTo(250, 1);
}
else{
$(this).fadeTo(250, 1);
}
$('#fileList tr td.filename').addClass('ui-draggable');
}
};
// sane browsers support using the distance option
if ( $('html.ie').length === 0) {
dragOptions['distance'] = 20;
}
// TODO: move to FileList class
var folderDropOptions = {
hoverClass: "canDrop",
drop: function( event, ui ) {
// don't allow moving a file into a selected folder
if ($(event.target).parents('tr').find('td input:first').prop('checked') === true) {
return false;
}
var targetPath = FileList.getCurrentDirectory() + '/' + $(this).closest('tr').data('file');
var files = FileList.getSelectedFiles();
if (files.length === 0) {
// single one selected without checkbox?
files = _.map(ui.helper.find('tr'), FileList.elementToFile);
}
FileList.move(_.pluck(files, 'name'), targetPath);
},
tolerance: 'pointer'
};
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) {
if(OC.Util.hasSVGSupport()){
path = path.substr(0, path.length-4) + '.svg';
}
Files.getMimeIcon.cache[mime]=path;
ready(Files.getMimeIcon.cache[mime]);
});
}
}
Files.getMimeIcon.cache={};
function getPathForPreview(name) {
var path = $('#dir').val() + '/' + name;
return path;
}
/**
* Generates a preview URL based on the URL space.
* @param urlSpec map with {x: width, y: height, file: file path}
* @return preview URL
*/
Files.generatePreviewUrl = function(urlSpec) {
urlSpec = urlSpec || {};
if (!urlSpec.x) {
urlSpec.x = $('#filestable').data('preview-x');
}
if (!urlSpec.y) {
urlSpec.y = $('#filestable').data('preview-y');
}
urlSpec.y *= window.devicePixelRatio;
urlSpec.x *= window.devicePixelRatio;
urlSpec.forceIcon = 0;
return OC.generateUrl('/core/preview.png?') + $.param(urlSpec);
};
Files.lazyLoadPreview = function(path, mime, ready, width, height, etag) {
// get mime icon url
Files.getMimeIcon(mime, function(iconURL) {
var previewURL,
urlSpec = {};
ready(iconURL); // set mimeicon URL
urlSpec.file = Files.fixPath(path);
if (etag){
// use etag as cache buster
urlSpec.c = etag;
}
else {
console.warn('Files.lazyLoadPreview(): missing etag argument');
}
previewURL = Files.generatePreviewUrl(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(){
// if loading the preview image failed (no preview for the mimetype) then img.width will < 5
if (img.width > 5) {
ready(previewURL);
}
};
img.src = previewURL;
});
};
function getUniqueName(name) {
if (FileList.findFileEl(name).exists()) {
var numMatch;
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");
}
});
}
// override core's fileDownloadPath (legacy)
function fileDownloadPath(dir, file) {
return Files.getDownloadUrl(file, dir);
}