devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (file_management/object_provider.js)
* Version: 20.1.7
* Build date: Tue Aug 25 2020
*
* Copyright (c) 2012 - 2020 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
"use strict";
var _array = require("../core/utils/array");
var _common = require("../core/utils/common");
var _data = require("../core/utils/data");
var _guid = require("../core/guid");
var _guid2 = _interopRequireDefault(_guid);
var _type = require("../core/utils/type");
var _type2 = _interopRequireDefault(_type);
var _errors = require("../data/errors");
var _deferred = require("../core/utils/deferred");
var _window = require("../core/utils/window");
var _file_saver = require("../exporter/file_saver");
var _ui = require("../ui/widget/ui.errors");
var _ui2 = _interopRequireDefault(_ui);
var _jszip = require("jszip");
var _jszip2 = _interopRequireDefault(_jszip);
var _provider_base = require("./provider_base");
var _provider_base2 = _interopRequireDefault(_provider_base);
var _errors2 = require("./errors");
var _errors3 = _interopRequireDefault(_errors2);
var _utils = require("./utils");
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
"default": obj
}
}
function _typeof(obj) {
"@babel/helpers - typeof";
if ("function" === typeof Symbol && "symbol" === typeof Symbol.iterator) {
_typeof = function(obj) {
return typeof obj
}
} else {
_typeof = function(obj) {
return obj && "function" === typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj
}
}
return _typeof(obj)
}
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function")
}
}
function _defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) {
descriptor.writable = true
}
Object.defineProperty(target, descriptor.key, descriptor)
}
}
function _createClass(Constructor, protoProps, staticProps) {
if (protoProps) {
_defineProperties(Constructor.prototype, protoProps)
}
if (staticProps) {
_defineProperties(Constructor, staticProps)
}
return Constructor
}
function _inherits(subClass, superClass) {
if ("function" !== typeof superClass && null !== superClass) {
throw new TypeError("Super expression must either be null or a function")
}
subClass.prototype = Object.create(superClass && superClass.prototype, {
constructor: {
value: subClass,
writable: true,
configurable: true
}
});
if (superClass) {
_setPrototypeOf(subClass, superClass)
}
}
function _setPrototypeOf(o, p) {
_setPrototypeOf = Object.setPrototypeOf || function(o, p) {
o.__proto__ = p;
return o
};
return _setPrototypeOf(o, p)
}
function _createSuper(Derived) {
var hasNativeReflectConstruct = _isNativeReflectConstruct();
return function() {
var result, Super = _getPrototypeOf(Derived);
if (hasNativeReflectConstruct) {
var NewTarget = _getPrototypeOf(this).constructor;
result = Reflect.construct(Super, arguments, NewTarget)
} else {
result = Super.apply(this, arguments)
}
return _possibleConstructorReturn(this, result)
}
}
function _possibleConstructorReturn(self, call) {
if (call && ("object" === _typeof(call) || "function" === typeof call)) {
return call
}
return _assertThisInitialized(self)
}
function _assertThisInitialized(self) {
if (void 0 === self) {
throw new ReferenceError("this hasn't been initialised - super() hasn't been called")
}
return self
}
function _isNativeReflectConstruct() {
if ("undefined" === typeof Reflect || !Reflect.construct) {
return false
}
if (Reflect.construct.sham) {
return false
}
if ("function" === typeof Proxy) {
return true
}
try {
Date.prototype.toString.call(Reflect.construct(Date, [], function() {}));
return true
} catch (e) {
return false
}
}
function _getPrototypeOf(o) {
_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function(o) {
return o.__proto__ || Object.getPrototypeOf(o)
};
return _getPrototypeOf(o)
}
var window = (0, _window.getWindow)();
var ObjectFileSystemProvider = function(_FileSystemProviderBa) {
_inherits(ObjectFileSystemProvider, _FileSystemProviderBa);
var _super = _createSuper(ObjectFileSystemProvider);
function ObjectFileSystemProvider(options) {
var _this;
_classCallCheck(this, ObjectFileSystemProvider);
options = (0, _common.ensureDefined)(options, {});
_this = _super.call(this, options);
var initialArray = options.data;
if (initialArray && !Array.isArray(initialArray)) {
throw _errors.errors.Error("E4006")
}
var itemsExpr = options.itemsExpr || "items";
_this._subFileItemsGetter = (0, _data.compileGetter)(itemsExpr);
_this._subFileItemsSetter = _this._getSetter(itemsExpr);
var contentExpr = options.contentExpr || "content";
_this._contentGetter = (0, _data.compileGetter)(contentExpr);
_this._contentSetter = _this._getSetter(contentExpr);
var nameExpr = _this._getNameExpr(options);
_this._nameSetter = _this._getSetter(nameExpr);
var isDirExpr = _this._getIsDirExpr(options);
_this._getIsDirSetter = _this._getSetter(isDirExpr);
var keyExpr = _this._getKeyExpr(options);
_this._keySetter = _this._getSetter(keyExpr);
var sizeExpr = _this._getSizeExpr(options);
_this._sizeSetter = _this._getSetter(sizeExpr);
var dateModifiedExpr = _this._getDateModifiedExpr(options);
_this._dateModifiedSetter = _this._getSetter(dateModifiedExpr);
_this._data = initialArray || [];
return _this
}
_createClass(ObjectFileSystemProvider, [{
key: "getItems",
value: function(parentDir) {
var _this2 = this;
return this._executeActionAsDeferred(function() {
return _this2._getItems(parentDir)
}, true)
}
}, {
key: "renameItem",
value: function(item, name) {
var _this3 = this;
return this._executeActionAsDeferred(function() {
return _this3._renameItemCore(item, name)
})
}
}, {
key: "_renameItemCore",
value: function(item, name) {
if (!item) {
return
}
var dataItem = this._findDataObject(item);
this._nameSetter(dataItem, name);
item.name = name;
item.key = this._ensureDataObjectKey(dataItem)
}
}, {
key: "createDirectory",
value: function(parentDir, name) {
var _this4 = this;
return this._executeActionAsDeferred(function() {
_this4._validateDirectoryExists(parentDir);
_this4._createDataObject(parentDir, name, true)
})
}
}, {
key: "deleteItems",
value: function(items) {
var _this5 = this;
return items.map(function(item) {
return _this5._executeActionAsDeferred(function() {
return _this5._deleteItem(item)
})
})
}
}, {
key: "moveItems",
value: function(items, destinationDir) {
var _this6 = this;
var destinationDataItem = this._findDataObject(destinationDir);
var array = this._getDirectoryDataItems(destinationDataItem);
var deferreds = items.map(function(item) {
return _this6._executeActionAsDeferred(function() {
_this6._checkAbilityToMoveOrCopyItem(item, destinationDir);
var dataItem = _this6._findDataObject(item);
_this6._deleteItem(item);
array.push(dataItem)
})
});
this._updateHasSubDirs(destinationDir);
return deferreds
}
}, {
key: "copyItems",
value: function(items, destinationDir) {
var _this7 = this;
var destinationDataItem = this._findDataObject(destinationDir);
var array = this._getDirectoryDataItems(destinationDataItem);
var deferreds = items.map(function(item) {
return _this7._executeActionAsDeferred(function() {
_this7._checkAbilityToMoveOrCopyItem(item, destinationDir);
var dataItem = _this7._findDataObject(item);
var copiedItem = _this7._createCopy(dataItem);
array.push(copiedItem)
})
});
this._updateHasSubDirs(destinationDir);
return deferreds
}
}, {
key: "uploadFileChunk",
value: function(fileData, chunksInfo, destinationDirectory) {
var _this8 = this;
if (chunksInfo.chunkIndex > 0) {
return chunksInfo.customData.deferred
}
this._validateDirectoryExists(destinationDirectory);
var deferred = chunksInfo.customData.deferred = new _deferred.Deferred;
var reader = this._createFileReader();
reader.readAsDataURL(fileData);
reader.onload = function() {
var content = reader.result.split(",")[1];
var dataObj = _this8._createDataObject(destinationDirectory, fileData.name, false);
_this8._sizeSetter(dataObj, fileData.size);
_this8._dateModifiedSetter(dataObj, fileData.lastModifiedDate);
_this8._contentSetter(dataObj, content);
deferred.resolve()
};
reader.onerror = function(error) {
return deferred.reject(error)
};
return deferred
}
}, {
key: "downloadItems",
value: function(items) {
if (1 === items.length) {
this._downloadSingleFile(items[0])
} else {
this._downloadMultipleFiles(items)
}
}
}, {
key: "_downloadSingleFile",
value: function(file) {
var content = this._getFileContent(file);
var byteString = window.atob(content);
var arrayBuffer = new ArrayBuffer(byteString.length);
var array = new Uint8Array(arrayBuffer);
for (var i = 0; i < byteString.length; i++) {
array[i] = byteString.charCodeAt(i)
}
var blob = new window.Blob([arrayBuffer], {
type: "application/octet-stream"
});
_file_saver.fileSaver.saveAs(file.name, null, blob)
}
}, {
key: "_downloadMultipleFiles",
value: function(files) {
var _this9 = this;
var jsZip = getJSZip();
var zip = new jsZip;
files.forEach(function(file) {
return zip.file(file.name, _this9._getFileContent(file), {
base64: true
})
});
var options = {
type: "blob",
compression: "DEFLATE",
mimeType: "application/zip"
};
var deferred = new _deferred.Deferred;
if (zip.generateAsync) {
zip.generateAsync(options).then(deferred.resolve)
} else {
deferred.resolve(zip.generate(options))
}
deferred.done(function(blob) {
return _file_saver.fileSaver.saveAs("files.zip", null, blob)
})
}
}, {
key: "_getFileContent",
value: function(file) {
var dataItem = this._findDataObject(file);
return this._contentGetter(dataItem) || ""
}
}, {
key: "_validateDirectoryExists",
value: function(directoryInfo) {
if (!this._isFileItemExists(directoryInfo) || this._isDirGetter(directoryInfo.fileItem)) {
throw {
errorId: _errors3.default.DirectoryNotFound,
fileItem: directoryInfo
}
}
}
}, {
key: "_checkAbilityToMoveOrCopyItem",
value: function(item, destinationDir) {
var _this10 = this;
var dataItem = this._findDataObject(item);
var itemKey = this._getKeyFromDataObject(dataItem, item.parentPath);
var pathInfo = destinationDir.getFullPathInfo();
var currentPath = "";
pathInfo.forEach(function(info) {
currentPath = (0, _utils.pathCombine)(currentPath, info.name);
var pathKey = _this10._getDataObjectKey(info.key, currentPath);
if (pathKey === itemKey) {
throw {
errorId: _errors3.default.Other,
fileItem: item
}
}
})
}
}, {
key: "_createDataObject",
value: function(parentDir, name, isDirectory) {
var dataObj = {};
this._nameSetter(dataObj, name);
this._getIsDirSetter(dataObj, isDirectory);
this._keySetter(dataObj, String(new _guid2.default));
var parentDataItem = this._findDataObject(parentDir);
var array = this._getDirectoryDataItems(parentDataItem);
array.push(dataObj);
if (isDirectory) {
this._updateHasSubDirs(parentDir)
}
return dataObj
}
}, {
key: "_createCopy",
value: function(dataObj) {
var _this11 = this;
var copyObj = {};
this._nameSetter(copyObj, this._nameGetter(dataObj));
this._getIsDirSetter(copyObj, this._isDirGetter(dataObj));
var items = this._subFileItemsGetter(dataObj);
if (Array.isArray(items)) {
var itemsCopy = [];
items.forEach(function(childItem) {
var childCopy = _this11._createCopy(childItem);
itemsCopy.push(childCopy)
});
this._subFileItemsSetter(copyObj, itemsCopy)
}
return copyObj
}
}, {
key: "_deleteItem",
value: function(fileItem) {
var dataItem = this._findDataObject(fileItem);
var parentDirDataObj = this._findFileItemObj(fileItem.pathInfo);
var array = this._getDirectoryDataItems(parentDirDataObj);
var index = array.indexOf(dataItem);
array.splice(index, 1)
}
}, {
key: "_getDirectoryDataItems",
value: function(directoryDataObj) {
if (!directoryDataObj) {
return this._data
}
var dataItems = this._subFileItemsGetter(directoryDataObj);
if (!Array.isArray(dataItems)) {
dataItems = [];
this._subFileItemsSetter(directoryDataObj, dataItems)
}
return dataItems
}
}, {
key: "_getItems",
value: function(parentDir) {
this._validateDirectoryExists(parentDir);
var pathInfo = parentDir.getFullPathInfo();
var parentDirKey = pathInfo && pathInfo.length > 0 ? pathInfo[pathInfo.length - 1].key : null;
var dirFileObjects = this._data;
if (parentDirKey) {
var directoryEntry = this._findFileItemObj(pathInfo);
dirFileObjects = directoryEntry && this._subFileItemsGetter(directoryEntry) || []
}
this._ensureKeysForDuplicateNameItems(dirFileObjects);
return this._convertDataObjectsToFileItems(dirFileObjects, pathInfo)
}
}, {
key: "_ensureKeysForDuplicateNameItems",
value: function(dataObjects) {
var _this12 = this;
var names = {};
dataObjects.forEach(function(obj) {
var name = _this12._nameGetter(obj);
if (names[name]) {
_this12._ensureDataObjectKey(obj)
} else {
names[name] = true
}
})
}
}, {
key: "_findDataObject",
value: function(item) {
if (item.isRoot()) {
return null
}
var result = this._findFileItemObj(item.getFullPathInfo());
if (!result) {
throw {
errorId: item.isDirectory ? _errors3.default.DirectoryNotFound : _errors3.default.FileNotFound,
fileItem: item
}
}
return result
}
}, {
key: "_findFileItemObj",
value: function(pathInfo) {
var _this13 = this;
if (!Array.isArray(pathInfo)) {
pathInfo = []
}
var currentPath = "";
var fileItemObj = null;
var fileItemObjects = this._data;
var _loop = function(i) {
fileItemObj = (0, _array.find)(fileItemObjects, function(item) {
var hasCorrectFileItemType = _this13._isDirGetter(item) || i === pathInfo.length - 1;
return _this13._getKeyFromDataObject(item, currentPath) === pathInfo[i].key && _this13._nameGetter(item) === pathInfo[i].name && hasCorrectFileItemType
});
if (fileItemObj) {
currentPath = (0, _utils.pathCombine)(currentPath, _this13._nameGetter(fileItemObj));
fileItemObjects = _this13._subFileItemsGetter(fileItemObj)
}
};
for (var i = 0; i < pathInfo.length && (0 === i || fileItemObj); i++) {
_loop(i)
}
return fileItemObj
}
}, {
key: "_getKeyFromDataObject",
value: function(dataObj, defaultKeyPrefix) {
var key = this._keyGetter(dataObj);
var relativeName = (0, _utils.pathCombine)(defaultKeyPrefix, this._nameGetter(dataObj));
return this._getDataObjectKey(key, relativeName)
}
}, {
key: "_getDataObjectKey",
value: function(key, relativeName) {
return key ? key : relativeName
}
}, {
key: "_ensureDataObjectKey",
value: function(dataObj) {
var key = this._keyGetter(dataObj);
if (!key) {
key = String(new _guid2.default);
this._keySetter(dataObj, key)
}
return key
}
}, {
key: "_updateHasSubDirs",
value: function(dir) {
if (dir && !dir.isRoot()) {
var dataItem = this._findDataObject(dir);
dir.hasSubDirectories = this._hasSubDirs(dataItem)
}
}
}, {
key: "_hasSubDirs",
value: function(dataObj) {
var subItems = (0, _common.ensureDefined)(this._subFileItemsGetter(dataObj), []);
if (!Array.isArray(subItems)) {
return true
}
for (var i = 0; i < subItems.length; i++) {
if (true === this._isDirGetter(subItems[i])) {
return true
}
}
return false
}
}, {
key: "_getSetter",
value: function(expr) {
return _type2.default.isFunction(expr) ? expr : (0, _data.compileSetter)(expr)
}
}, {
key: "_isFileItemExists",
value: function(fileItem) {
return fileItem.isDirectory && fileItem.isRoot() || !!this._findFileItemObj(fileItem.getFullPathInfo())
}
}, {
key: "_createFileReader",
value: function() {
return new window.FileReader
}
}]);
return ObjectFileSystemProvider
}(_provider_base2.default);
function getJSZip() {
if (!_jszip2.default) {
throw _ui2.default.Error("E1041", "JSZip")
}
return _jszip2.default
}
module.exports = ObjectFileSystemProvider;
module.exports.default = module.exports;