454 lines
17 KiB
JavaScript
454 lines
17 KiB
JavaScript
define([
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'/customize/messages.js',
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'/common/cryptpad-common.js',
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'/bower_components/jquery/dist/jquery.min.js',
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], function (Messages, Cryptpad) {
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var $ = window.jQuery;
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var module = {};
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var ROOT = "root";
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var UNSORTED = "unsorted";
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var FILES_DATA = "filesData";
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var TRASH = "trash";
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var NEW_FOLDER_NAME = Messages.fm_newFolder;
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var init = module.init = function (files, config) {
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var DEBUG = config.DEBUG || false;
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var logging = console.log;
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var log = config.log || logging;
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var logError = config.logError || logging;
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var debug = config.debug || logging;
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var exp = {};
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var error = exp.error = function() {
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exp.fixFiles();
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console.error.apply(arguments);
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};
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var comparePath = exp.comparePath = function (a, b) {
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if (!a || !b || !$.isArray(a) || !$.isArray(b)) { return false; }
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if (a.length !== b.length) { return false; }
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var result = true;
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var i = a.length - 1;
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while (result && i >= 0) {
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result = a[i] === b[i];
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i--;
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}
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return result;
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};
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var deleteFromObject = function (path) {
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var parentPath = path.slice();
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var key = parentPath.pop();
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var parentEl = findElement(files, parentPath);
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if (path.length === 4 && path[0] === TRASH) {
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files[TRASH][path[1]].splice(path[2], 1);
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} else if (path[0] === UNSORTED) {
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parentEl.splice(key, 1);
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} else {
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delete parentEl[key];
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}
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};
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var isPathInRoot = exp.isPathInRoot = function (path) {
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return path[0] && path[0] === ROOT;
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};
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var isPathInUnsorted = exp.isPathInUnsorted = function (path) {
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return path[0] && path[0] === UNSORTED;
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};
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var isPathInTrash = exp.isPathInTrash = function (path) {
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return path[0] && path[0] === TRASH;
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};
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var isFile = exp.isFile = function (element) {
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return typeof(element) === "string";
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};
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var isFolder = exp.isFolder = function (element) {
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return typeof(element) !== "string";
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};
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var isFolderEmpty = exp.isFolderEmpty = function (element) {
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if (typeof(element) !== "object") { return false; }
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return Object.keys(element).length === 0;
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};
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var hasSubfolder = exp.hasSubfolder = function (element, trashRoot) {
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if (typeof(element) !== "object") { return false; }
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var subfolder = 0;
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for (var f in element) {
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if (trashRoot) {
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if ($.isArray(element[f])) {
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element[f].forEach(function (el, idx) {
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subfolder += isFolder(el.element) ? 1 : 0;
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});
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}
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} else {
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subfolder += isFolder(element[f]) ? 1 : 0;
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}
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}
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return subfolder;
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};
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var hasFile = exp.hasFile = function (element, trashRoot) {
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if (typeof(element) !== "object") { return false; }
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var file = 0;
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for (var f in element) {
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if (trashRoot) {
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if ($.isArray(element[f])) {
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element[f].forEach(function (el, idx) {
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file += isFile(el.element) ? 1 : 0;
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});
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}
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} else {
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file += isFile(element[f]) ? 1 : 0;
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}
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}
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return file;
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};
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var isSubpath = exp.isSubpath = function (path, parentPath) {
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var pathA = parentPath.slice();
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var pathB = path.slice(0, pathA.length);
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return comparePath(pathA, pathB);
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};
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var getAvailableName = function (parentEl, name) {
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if (typeof(parentEl[name]) === "undefined") { return name; }
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var newName = name;
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var i = 1;
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while (typeof(parentEl[newName]) !== "undefined") {
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newName = name + "_" + i;
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i++;
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}
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return newName;
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};
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var compareFiles = function (fileA, fileB) {
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// Compare string, might change in the future
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return fileA === fileB;
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};
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var isInTrashRoot = function (path) {
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return path[0] === TRASH && path.length === 4;
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};
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var getTrashElementData = exp.getTrashElementData = function (trashPath) {
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if (!isInTrashRoot) {
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debug("Called getTrashElementData on a element not in trash root: ", trashpath);
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return;
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}
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var parentPath = trashPath.slice();
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parentPath.pop();
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return findElement(files, parentPath);
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};
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var getUnsortedFiles = exp.getUnsortedFiles = function () {
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return files[UNSORTED];
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};
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// Data from filesData
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var getTitle = function (href) {
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if (!files[FILES_DATA][href]) {
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error("getTitle called with a non-existing href: ", href);
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return;
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}
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return files[FILES_DATA][href].title;
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};
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// Find an element in a object following a path, resursively
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var findElement = exp.findElement = function (root, pathInput) {
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if (!pathInput) {
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error("Invalid path:\n", pathInput, "\nin root\n", root);
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return;
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}
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if (pathInput.length === 0) { return root; }
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var path = pathInput.slice();
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var key = path.shift();
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if (typeof root[key] === "undefined") {
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debug("Unable to find the key '" + key + "' in the root object provided:\n", root);
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return;
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}
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return findElement(root[key], path);
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};
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var moveElement = exp.moveElement = function (elementPath, newParentPath, cb) {
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if (comparePath(elementPath, newParentPath)) { return; } // Nothing to do...
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if (newParentPath[0] && newParentPath[0] === TRASH) {
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debug("Moving to trash is forbidden. You have to use the removeElement function");
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return;
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}
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var element = findElement(files, elementPath);
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var newParent = findElement(files, newParentPath);
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if (isPathInUnsorted(newParentPath)) {
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if (isFolder(element)) {
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log(Messages.fo_moveUnsortedError);
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return;
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} else {
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if (files[UNSORTED].indexOf(element) === -1) {
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files[UNSORTED].push(element);
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}
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deleteFromObject(elementPath);
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cb && cb();
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return;
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}
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}
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var name;
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if (isPathInUnsorted(elementPath)) {
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name = getTitle(element);
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} else if (elementPath.length === 4 && elementPath[0] === TRASH) {
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// Element from the trash root: elementPath = [TRASH, "{dirName}", 0, 'element']
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name = elementPath[1];
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} else {
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name = elementPath[elementPath.length-1];
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}
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var newName = !isPathInRoot(elementPath) ? getAvailableName(newParent, name) : name;
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if (typeof(newParent[newName]) !== "undefined") {
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log("A file with the same name already exist at the new location. Rename the file and try again.");
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return;
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}
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newParent[newName] = element;
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deleteFromObject(elementPath);
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cb && cb();
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};
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var createNewFolder = exp.createNewFolder = function (folderPath, name, cb) {
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var parentEl = findElement(files, folderPath);
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var folderName = getAvailableName(parentEl, name || NEW_FOLDER_NAME);
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parentEl[folderName] = {};
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var newPath = folderPath.slice();
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newPath.push(folderName);
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cb({
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newPath: newPath
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});
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};
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var pushToTrash = function (name, element, path) {
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var trash = findElement(files, [TRASH]);
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if (typeof(trash[name]) === "undefined") {
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trash[name] = [];
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}
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var trashArray = trash[name];
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var trashElement = {
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element: element,
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path: path
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};
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trashArray.push(trashElement);
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};
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// Move to trash
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var removeElement = exp.removeElement = function (path, cb, force) {
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if (!path || path.length < 2 || path[0] === TRASH) {
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debug("Calling removeElement from a wrong path: ", path);
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return;
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}
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var element = findElement(files, path);
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var key = path[path.length - 1];
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var name = isPathInUnsorted(path) ? getTitle(element) : key;
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var andThen = function () {
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var parentPath = path.slice();
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parentPath.pop();
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pushToTrash(name, element, parentPath);
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deleteFromObject(path);
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cb && cb();
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};
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if (force) {
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andThen();
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return;
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}
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Cryptpad.confirm("Are you sure you want to move " + name + " to the trash?", function(res) {
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if (!res) { return; }
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andThen();
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});
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};
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var removeFromTrashArray = function (element, name) {
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var array = files[TRASH][name];
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if (!array || !$.isArray(array)) { return; }
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// Remove the element from the trash array
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var index = array.indexOf(element);
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if (index > -1) {
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array.splice(index, 1);
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}
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// Remove the array is empty to have a cleaner object in chainpad
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if (array.length === 0) {
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delete files[TRASH][name];
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}
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};
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var restoreTrash = exp.restoreTrash = function (path, cb) {
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if (!path || path.length !== 4 || path[0] !== TRASH) {
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debug("restoreTrash was called from an element not in the trash root: ", path);
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return;
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}
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var element = findElement(files, path);
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var parentEl = getTrashElementData(path);
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var newPath = parentEl.path;
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if (isPathInUnsorted(newPath)) {
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if (files[UNSORTED].indexOf(element) === -1) {
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files[UNSORTED].push(element);
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removeFromTrashArray(parentEl, path[1]);
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cb();
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}
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return;
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}
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// Find the new parent element
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var newParentEl = findElement(files, newPath);
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var name = getAvailableName(newParentEl, path[1]);
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// Move the element
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newParentEl[name] = element;
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removeFromTrashArray(parentEl, path[1]);
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cb();
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};
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// Delete permanently
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var removeFromTrash = exp.removeFromTrash = function (path, cb) {
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if (!path || path.length < 4 || path[0] !== TRASH) { return; }
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// Remove the last element from the path to get the parent path and the element name
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var parentPath = path.slice();
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var name;
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if (path.length === 4) { // Trash root
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name = path[1];
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parentPath.pop();
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var parentElement = findElement(files, parentPath);
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removeFromTrashArray(parentElement, name);
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cb();
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return;
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}
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name = parentPath.pop();
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var parentEl = findElement(files, parentPath);
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if (typeof(parentEl[name]) === "undefined") {
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logError("Unable to locate the element to remove from trash: ", path);
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return;
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}
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delete parentEl[name];
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cb();
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};
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var emptyTrash = exp.emptyTrash = function (cb) {
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files[TRASH] = {};
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cb();
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};
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var renameElement = exp.renameElement = function (path, newName, cb) {
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if (path.length <= 1) {
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logError('Renaming `root` is forbidden');
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return;
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}
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if (!newName || newName.trim() === "") { return; }
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// Copy the element path and remove the last value to have the parent path and the old name
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var element = findElement(files, path);
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var parentPath = path.slice();
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var oldName = parentPath.pop();
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if (oldName === newName) {
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return;
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}
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var parentEl = findElement(files, parentPath);
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if (typeof(parentEl[newName]) !== "undefined") {
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log(Messages.fo_existingNameError);
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return;
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}
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parentEl[newName] = element;
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delete parentEl[oldName];
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cb();
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};
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var fixFiles = exp.fixFiles = function () {
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// Explore the tree and check that everything is correct:
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// * 'root', 'trash' and 'filesData' exist and are objects
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// * Folders are objects
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// * Files are href
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// * Trash root contains only arrays, each element of the array is an object {element:.., path:..}
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// * Data (title, cdate, adte) are stored in filesData. filesData contains only href keys linking to object with title, cdate, adate.
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// * Dates (adate, cdate) can be parsed/formatted
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debug("Cleaning file system...");
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// Create a backup
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if (typeof(localStorage.oldFileSystem) === "undefined") {
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localStorage.oldFileSystem = '[]';
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}
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var before = JSON.stringify(files);
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if (typeof(files[ROOT]) !== "object") { debug("ROOT was not an object"); files[ROOT] = {}; }
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if (typeof(files[TRASH]) !== "object") { debug("TRASH was not an object"); files[TRASH] = {}; }
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if (typeof(files[FILES_DATA]) !== "object") { debug("FILES_DATA was not an object"); files[FILES_DATA] = {}; }
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if (!$.isArray(files[UNSORTED])) { debug("UNSORTED was not an array"); files[UNSORTED] = []; }
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var fixRoot = function (element) {
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for (var el in element) {
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if (!isFile(element[el]) && !isFolder(element[el])) {
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debug("An element in ROOT was not a folder nor a file. ", element[el]);
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delete element[el];
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} else if (isFolder(element[el])) {
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fixRoot(element[el]);
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}
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}
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};
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fixRoot(files[ROOT]);
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var fixTrashRoot = function (tr) {
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var toClean;
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for (var el in tr) {
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if (!$.isArray(tr[el])) {
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debug("An element in TRASH root is not an array. ", tr[el]);
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delete tr[el];
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} else {
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toClean = [];
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tr[el].forEach(function (obj, idx) {
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if (typeof(obj) !== "object") { toClean.push(idx); return; }
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if (!isFile(obj.element) && !isFolder(obj.element)) { toClean.push(idx); return; }
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if (!$.isArray(obj.path)) { toClean.push(idx); return; }
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});
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for (var i = toClean.length-1; i>=0; i--) {
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tr[el].splice(toClean[i], 1);
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}
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}
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}
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};
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fixTrashRoot(files[TRASH]);
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var fixFilesData = function (fd) {
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for (var el in fd) {
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if (typeof(fd[el]) !== "object") {
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debug("An element in filesData was not an object. ", fd[el]);
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delete fd[el];
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}
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};
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};
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fixFilesData(files[FILES_DATA]);
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var fixUnsorted = function (us) {
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var toClean = [];
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us.forEach(function (el, idx) {
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if (!isFile(el)) {
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toClean.push(idx);
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}
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});
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};
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fixUnsorted(files[UNSORTED]);
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if (JSON.stringify(files) !== before) {
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var backup = JSON.parse(localStorage.oldFileSystem);
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backup.push(files);
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localStorage.oldFileSystem = JSON.stringify(backup);
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debug("Your file system was corrupted. It has been cleaned so that the file manager application can be used");
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return;
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}
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debug("File system was clean");
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};
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fixFiles();
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return exp;
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};
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return module;
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});
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