devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/ui/file_uploader.js)
* Version: 23.2.6
* Build date: Wed May 01 2024
*
* Copyright (c) 2012 - 2024 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import {
getOffset,
getWidth
} from "../core/utils/size";
import $ from "../core/renderer";
import Guid from "../core/guid";
import {
getWindow
} from "../core/utils/window";
import eventsEngine from "../events/core/events_engine";
import registerComponent from "../core/component_registrator";
import Callbacks from "../core/utils/callbacks";
import {
isDefined,
isFunction,
isNumeric
} from "../core/utils/type";
import {
each
} from "../core/utils/iterator";
import {
extend
} from "../core/utils/extend";
import {
Deferred,
fromPromise
} from "../core/utils/deferred";
import ajax from "../core/utils/ajax";
import Editor from "./editor/editor";
import Button from "./button";
import ProgressBar from "./progress_bar";
import devices from "../core/devices";
import {
addNamespace,
isTouchEvent
} from "../events/utils/index";
import {
name as clickEventName
} from "../events/click";
import messageLocalization from "../localization/message";
import {
isFluent,
isMaterial
} from "./themes";
import domAdapter from "../core/dom_adapter";
var window = getWindow();
var FILEUPLOADER_CLASS = "dx-fileuploader";
var FILEUPLOADER_EMPTY_CLASS = "dx-fileuploader-empty";
var FILEUPLOADER_SHOW_FILE_LIST_CLASS = "dx-fileuploader-show-file-list";
var FILEUPLOADER_DRAGOVER_CLASS = "dx-fileuploader-dragover";
var FILEUPLOADER_WRAPPER_CLASS = "dx-fileuploader-wrapper";
var FILEUPLOADER_CONTAINER_CLASS = "dx-fileuploader-container";
var FILEUPLOADER_CONTENT_CLASS = "dx-fileuploader-content";
var FILEUPLOADER_INPUT_WRAPPER_CLASS = "dx-fileuploader-input-wrapper";
var FILEUPLOADER_INPUT_CONTAINER_CLASS = "dx-fileuploader-input-container";
var FILEUPLOADER_INPUT_LABEL_CLASS = "dx-fileuploader-input-label";
var FILEUPLOADER_INPUT_CLASS = "dx-fileuploader-input";
var FILEUPLOADER_FILES_CONTAINER_CLASS = "dx-fileuploader-files-container";
var FILEUPLOADER_FILE_CONTAINER_CLASS = "dx-fileuploader-file-container";
var FILEUPLOADER_FILE_INFO_CLASS = "dx-fileuploader-file-info";
var FILEUPLOADER_FILE_STATUS_MESSAGE_CLASS = "dx-fileuploader-file-status-message";
var FILEUPLOADER_FILE_CLASS = "dx-fileuploader-file";
var FILEUPLOADER_FILE_NAME_CLASS = "dx-fileuploader-file-name";
var FILEUPLOADER_FILE_SIZE_CLASS = "dx-fileuploader-file-size";
var FILEUPLOADER_BUTTON_CLASS = "dx-fileuploader-button";
var FILEUPLOADER_BUTTON_CONTAINER_CLASS = "dx-fileuploader-button-container";
var FILEUPLOADER_CANCEL_BUTTON_CLASS = "dx-fileuploader-cancel-button";
var FILEUPLOADER_UPLOAD_BUTTON_CLASS = "dx-fileuploader-upload-button";
var FILEUPLOADER_INVALID_CLASS = "dx-fileuploader-invalid";
var FILEUPLOADER_AFTER_LOAD_DELAY = 400;
var FILEUPLOADER_CHUNK_META_DATA_NAME = "chunkMetadata";
var DRAG_EVENT_DELTA = 1;
var renderFileUploaderInput = () => $("<input>").attr("type", "file");
var isFormDataSupported = () => !!window.FormData;
class FileUploader extends Editor {
_supportedKeys() {
var click = e => {
e.preventDefault();
var $selectButton = this._selectButton.$element();
eventsEngine.trigger($selectButton, clickEventName)
};
return extend(super._supportedKeys(), {
space: click,
enter: click
})
}
_setOptionsByReference() {
super._setOptionsByReference();
extend(this._optionsByReference, {
value: true
})
}
_getDefaultOptions() {
return extend(super._getDefaultOptions(), {
chunkSize: 0,
value: [],
selectButtonText: messageLocalization.format("dxFileUploader-selectFile"),
uploadButtonText: messageLocalization.format("dxFileUploader-upload"),
labelText: messageLocalization.format("dxFileUploader-dropFile"),
name: "files[]",
multiple: false,
accept: "",
uploadUrl: "/",
allowCanceling: true,
showFileList: true,
progress: 0,
dialogTrigger: void 0,
dropZone: void 0,
readyToUploadMessage: messageLocalization.format("dxFileUploader-readyToUpload"),
uploadedMessage: messageLocalization.format("dxFileUploader-uploaded"),
uploadFailedMessage: messageLocalization.format("dxFileUploader-uploadFailedMessage"),
uploadAbortedMessage: messageLocalization.format("dxFileUploader-uploadAbortedMessage"),
uploadMode: "instantly",
uploadMethod: "POST",
uploadHeaders: {},
uploadCustomData: {},
onBeforeSend: null,
onUploadStarted: null,
onUploaded: null,
onFilesUploaded: null,
onProgress: null,
onUploadError: null,
onUploadAborted: null,
onDropZoneEnter: null,
onDropZoneLeave: null,
allowedFileExtensions: [],
maxFileSize: 0,
minFileSize: 0,
inputAttr: {},
invalidFileExtensionMessage: messageLocalization.format("dxFileUploader-invalidFileExtension"),
invalidMaxFileSizeMessage: messageLocalization.format("dxFileUploader-invalidMaxFileSize"),
invalidMinFileSizeMessage: messageLocalization.format("dxFileUploader-invalidMinFileSize"),
extendSelection: true,
validationMessageMode: "always",
uploadFile: null,
uploadChunk: null,
abortUpload: null,
validationMessageOffset: {
h: 0,
v: 0
},
hoverStateEnabled: true,
useNativeInputClick: false,
useDragOver: true,
nativeDropSupported: true,
_uploadButtonType: "normal",
_buttonStylingMode: "contained"
})
}
_defaultOptionsRules() {
return super._defaultOptionsRules().concat([{
device: () => "desktop" === devices.real().deviceType && !devices.isSimulator(),
options: {
focusStateEnabled: true
}
}, {
device: [{
platform: "android"
}],
options: {
validationMessageOffset: {
v: 0
}
}
}, {
device: () => "desktop" !== devices.real().deviceType,
options: {
useDragOver: false
}
}, {
device: () => !isFormDataSupported(),
options: {
uploadMode: "useForm"
}
}, {
device: () => "desktop" !== devices.real().deviceType,
options: {
nativeDropSupported: false
}
}, {
device: () => isMaterial(),
options: {
_uploadButtonType: "default"
}
}, {
device: () => isFluent(),
options: {
_buttonStylingMode: "text"
}
}])
}
_initOptions(options) {
var isLabelTextDefined = "labelText" in options;
super._initOptions(options);
if (!isLabelTextDefined && !this._shouldDragOverBeRendered()) {
this.option("labelText", "")
}
}
_init() {
super._init();
this._initFileInput();
this._initLabel();
this._setUploadStrategy();
this._createFiles();
this._createBeforeSendAction();
this._createUploadStartedAction();
this._createUploadedAction();
this._createFilesUploadedAction();
this._createProgressAction();
this._createUploadErrorAction();
this._createUploadAbortedAction();
this._createDropZoneEnterAction();
this._createDropZoneLeaveAction()
}
_setUploadStrategy() {
var strategy = null;
if (this.option("chunkSize") > 0) {
var uploadChunk = this.option("uploadChunk");
strategy = uploadChunk && isFunction(uploadChunk) ? new CustomChunksFileUploadStrategy(this) : new DefaultChunksFileUploadStrategy(this)
} else {
var uploadFile = this.option("uploadFile");
strategy = uploadFile && isFunction(uploadFile) ? new CustomWholeFileUploadStrategy(this) : new DefaultWholeFileUploadStrategy(this)
}
this._uploadStrategy = strategy
}
_initFileInput() {
this._isCustomClickEvent = false;
var {
multiple: multiple,
accept: accept,
hint: hint
} = this.option();
if (!this._$fileInput) {
this._$fileInput = renderFileUploaderInput();
eventsEngine.on(this._$fileInput, "change", this._inputChangeHandler.bind(this));
eventsEngine.on(this._$fileInput, "click", e => {
e.stopPropagation();
this._resetInputValue();
return this.option("useNativeInputClick") || this._isCustomClickEvent
})
}
var inputProps = {
multiple: multiple,
accept: accept,
tabIndex: -1
};
if (isDefined(hint)) {
inputProps.title = hint
}
this._$fileInput.prop(inputProps)
}
_inputChangeHandler() {
if (this._doPreventInputChange) {
return
}
var fileName = this._$fileInput.val().replace(/^.*\\/, "");
var files = this._$fileInput.prop("files");
if (files && !files.length && "useForm" !== this.option("uploadMode")) {
return
}
var value = files ? this._getFiles(files) : [{
name: fileName
}];
this._changeValue(value);
if ("instantly" === this.option("uploadMode")) {
this._uploadFiles()
}
}
_shouldFileListBeExtended() {
return "useForm" !== this.option("uploadMode") && this.option("extendSelection") && this.option("multiple")
}
_changeValue(value) {
var files = this._shouldFileListBeExtended() ? this.option("value").slice() : [];
this.option("value", files.concat(value))
}
_getFiles(fileList) {
var values = [];
each(fileList, (_, value) => values.push(value));
return values
}
_getFile(fileData) {
var targetFileValue = isNumeric(fileData) ? this.option("value")[fileData] : fileData;
return this._files.filter(file => file.value === targetFileValue)[0]
}
_initLabel() {
if (!this._$inputLabel) {
this._$inputLabel = $("<div>")
}
this._updateInputLabelText()
}
_updateInputLabelText() {
var correctedValue = this._isInteractionDisabled() ? "" : this.option("labelText");
this._$inputLabel.text(correctedValue)
}
_focusTarget() {
return this.$element().find("." + FILEUPLOADER_BUTTON_CLASS)
}
_getSubmitElement() {
return this._$fileInput
}
_initMarkup() {
super._initMarkup();
this.$element().addClass(FILEUPLOADER_CLASS);
this._renderWrapper();
this._renderInputWrapper();
this._renderSelectButton();
this._renderInputContainer();
this._renderUploadButton();
this._preventRecreatingFiles = true;
this._activeDropZone = null
}
_render() {
this._preventRecreatingFiles = false;
this._attachDragEventHandlers(this._$inputWrapper);
this._attachDragEventHandlers(this.option("dropZone"));
this._renderFiles();
super._render()
}
_createFileProgressBar(file) {
file.progressBar = this._createProgressBar(file.value.size);
file.progressBar.$element().appendTo(file.$file);
this._initStatusMessage(file);
this._ensureCancelButtonInitialized(file)
}
_setStatusMessage(file, message) {
setTimeout(() => {
if (this.option("showFileList")) {
if (file.$statusMessage) {
file.$statusMessage.text(message);
file.$statusMessage.css("display", "");
file.progressBar.$element().remove()
}
}
}, FILEUPLOADER_AFTER_LOAD_DELAY)
}
_getUploadAbortedStatusMessage() {
return "instantly" === this.option("uploadMode") ? this.option("uploadAbortedMessage") : this.option("readyToUploadMessage")
}
_createFiles() {
var value = this.option("value");
if (this._files && (0 === value.length || !this._shouldFileListBeExtended())) {
this._preventFilesUploading(this._files);
this._files = null
}
if (!this._files) {
this._files = []
}
each(value.slice(this._files.length), (_, value) => {
var file = this._createFile(value);
this._validateFile(file);
this._files.push(file)
})
}
_preventFilesUploading(files) {
files.forEach(file => this._uploadStrategy.abortUpload(file))
}
_validateFile(file) {
file.isValidFileExtension = this._validateFileExtension(file);
file.isValidMinSize = this._validateMinFileSize(file);
file.isValidMaxSize = this._validateMaxFileSize(file)
}
_validateFileExtension(file) {
var allowedExtensions = this.option("allowedFileExtensions");
var accept = this.option("accept");
var allowedTypes = this._getAllowedFileTypes(accept);
var fileExtension = file.value.name.substring(file.value.name.lastIndexOf(".")).toLowerCase();
if (0 !== accept.length && !this._isFileTypeAllowed(file.value, allowedTypes)) {
return false
}
if (0 === allowedExtensions.length) {
return true
}
for (var i = 0; i < allowedExtensions.length; i++) {
if (fileExtension === allowedExtensions[i].toLowerCase()) {
return true
}
}
return false
}
_validateMaxFileSize(file) {
var fileSize = file.value.size;
var maxFileSize = this.option("maxFileSize");
return maxFileSize > 0 ? fileSize <= maxFileSize : true
}
_validateMinFileSize(file) {
var fileSize = file.value.size;
var minFileSize = this.option("minFileSize");
return minFileSize > 0 ? fileSize >= minFileSize : true
}
_createBeforeSendAction() {
this._beforeSendAction = this._createActionByOption("onBeforeSend", {
excludeValidators: ["readOnly"]
})
}
_createUploadStartedAction() {
this._uploadStartedAction = this._createActionByOption("onUploadStarted", {
excludeValidators: ["readOnly"]
})
}
_createUploadedAction() {
this._uploadedAction = this._createActionByOption("onUploaded", {
excludeValidators: ["readOnly"]
})
}
_createFilesUploadedAction() {
this._filesUploadedAction = this._createActionByOption("onFilesUploaded", {
excludeValidators: ["readOnly"]
})
}
_createProgressAction() {
this._progressAction = this._createActionByOption("onProgress", {
excludeValidators: ["readOnly"]
})
}
_createUploadAbortedAction() {
this._uploadAbortedAction = this._createActionByOption("onUploadAborted", {
excludeValidators: ["readOnly"]
})
}
_createUploadErrorAction() {
this._uploadErrorAction = this._createActionByOption("onUploadError", {
excludeValidators: ["readOnly"]
})
}
_createDropZoneEnterAction() {
this._dropZoneEnterAction = this._createActionByOption("onDropZoneEnter")
}
_createDropZoneLeaveAction() {
this._dropZoneLeaveAction = this._createActionByOption("onDropZoneLeave")
}
_createFile(value) {
return {
value: value,
loadedSize: 0,
onProgress: Callbacks(),
onAbort: Callbacks(),
onLoad: Callbacks(),
onError: Callbacks(),
onLoadStart: Callbacks(),
isValidFileExtension: true,
isValidMaxSize: true,
isValidMinSize: true,
isValid() {
return this.isValidFileExtension && this.isValidMaxSize && this.isValidMinSize
},
isInitialized: false
}
}
_resetFileState(file) {
file.isAborted = false;
file.uploadStarted = false;
file.isStartLoad = false;
file.loadedSize = 0;
file.chunksData = void 0;
file.request = void 0
}
_renderFiles() {
var _this$_validationMess;
var value = this.option("value");
if (!this._$filesContainer) {
this._$filesContainer = $("<div>").addClass(FILEUPLOADER_FILES_CONTAINER_CLASS).appendTo(this._$content)
} else if (!this._shouldFileListBeExtended() || 0 === value.length) {
this._$filesContainer.empty()
}
var showFileList = this.option("showFileList");
if (showFileList) {
each(this._files, (_, file) => {
if (!file.$file) {
this._renderFile(file)
}
})
}
this.$element().toggleClass(FILEUPLOADER_SHOW_FILE_LIST_CLASS, showFileList);
this._toggleFileUploaderEmptyClassName();
this._updateFileNameMaxWidth();
null === (_this$_validationMess = this._validationMessage) || void 0 === _this$_validationMess ? void 0 : _this$_validationMess.repaint()
}
_renderFile(file) {
var value = file.value;
var $fileContainer = $("<div>").addClass(FILEUPLOADER_FILE_CONTAINER_CLASS).appendTo(this._$filesContainer);
this._renderFileButtons(file, $fileContainer);
file.$file = $("<div>").addClass(FILEUPLOADER_FILE_CLASS).appendTo($fileContainer);
var $fileInfo = $("<div>").addClass(FILEUPLOADER_FILE_INFO_CLASS).appendTo(file.$file);
file.$statusMessage = $("<div>").addClass(FILEUPLOADER_FILE_STATUS_MESSAGE_CLASS).appendTo(file.$file);
$("<div>").addClass(FILEUPLOADER_FILE_NAME_CLASS).text(value.name).appendTo($fileInfo);
if (isDefined(value.size)) {
$("<div>").addClass(FILEUPLOADER_FILE_SIZE_CLASS).text(this._getFileSize(value.size)).appendTo($fileInfo)
}
if (file.isValid()) {
file.$statusMessage.text(this.option("readyToUploadMessage"))
} else {
if (!file.isValidFileExtension) {
file.$statusMessage.append(this._createValidationElement("invalidFileExtensionMessage"))
}
if (!file.isValidMaxSize) {
file.$statusMessage.append(this._createValidationElement("invalidMaxFileSizeMessage"))
}
if (!file.isValidMinSize) {
file.$statusMessage.append(this._createValidationElement("invalidMinFileSizeMessage"))
}
$fileContainer.addClass(FILEUPLOADER_INVALID_CLASS)
}
}
_createValidationElement(key) {
return $("<span>").text(this.option(key))
}
_updateFileNameMaxWidth() {
var cancelButtonsCount = this.option("allowCanceling") && "useForm" !== this.option("uploadMode") ? 1 : 0;
var uploadButtonsCount = "useButtons" === this.option("uploadMode") ? 1 : 0;
var filesContainerWidth = getWidth(this._$filesContainer.find("." + FILEUPLOADER_FILE_CONTAINER_CLASS).first()) || getWidth(this._$filesContainer);
var $buttonContainer = this._$filesContainer.find("." + FILEUPLOADER_BUTTON_CONTAINER_CLASS).eq(0);
var buttonsWidth = getWidth($buttonContainer) * (cancelButtonsCount + uploadButtonsCount);
var $fileSize = this._$filesContainer.find("." + FILEUPLOADER_FILE_SIZE_CLASS).eq(0);
var prevFileSize = $fileSize.text();
$fileSize.text("1000 Mb");
var fileSizeWidth = getWidth($fileSize);
$fileSize.text(prevFileSize);
this._$filesContainer.find("." + FILEUPLOADER_FILE_NAME_CLASS).css("maxWidth", filesContainerWidth - buttonsWidth - fileSizeWidth)
}
_renderFileButtons(file, $container) {
var $cancelButton = this._getCancelButton(file);
$cancelButton && $container.append($cancelButton);
var $uploadButton = this._getUploadButton(file);
$uploadButton && $container.append($uploadButton)
}
_getCancelButton(file) {
if ("useForm" === this.option("uploadMode")) {
return null
}
var {
allowCanceling: allowCanceling,
readOnly: readOnly,
hoverStateEnabled: hoverStateEnabled,
_buttonStylingMode: _buttonStylingMode
} = this.option();
file.cancelButton = this._createComponent($("<div>").addClass(FILEUPLOADER_BUTTON_CLASS + " " + FILEUPLOADER_CANCEL_BUTTON_CLASS), Button, {
onClick: () => this._removeFile(file),
icon: "close",
visible: allowCanceling,
disabled: readOnly,
integrationOptions: {},
hoverStateEnabled: hoverStateEnabled,
stylingMode: _buttonStylingMode
});
return $("<div>").addClass(FILEUPLOADER_BUTTON_CONTAINER_CLASS).append(file.cancelButton.$element())
}
_getUploadButton(file) {
if (!file.isValid() || "useButtons" !== this.option("uploadMode")) {
return null
}
var {
hoverStateEnabled: hoverStateEnabled,
_buttonStylingMode: _buttonStylingMode
} = this.option();
file.uploadButton = this._createComponent($("<div>").addClass(FILEUPLOADER_BUTTON_CLASS + " " + FILEUPLOADER_UPLOAD_BUTTON_CLASS), Button, {
onClick: () => this._uploadFile(file),
icon: "upload",
hoverStateEnabled: hoverStateEnabled,
stylingMode: _buttonStylingMode
});
file.onLoadStart.add(() => file.uploadButton.option({
visible: false,
disabled: true
}));
file.onAbort.add(() => file.uploadButton.option({
visible: true,
disabled: false
}));
return $("<div>").addClass(FILEUPLOADER_BUTTON_CONTAINER_CLASS).append(file.uploadButton.$element())
}
_removeFile(file) {
var _file$$file;
null === (_file$$file = file.$file) || void 0 === _file$$file ? void 0 : _file$$file.parent().remove();
this._files.splice(this._files.indexOf(file), 1);
var value = this.option("value").slice();
value.splice(value.indexOf(file.value), 1);
this._preventRecreatingFiles = true;
this.option("value", value);
this._preventRecreatingFiles = false;
this._toggleFileUploaderEmptyClassName();
this._resetInputValue(true)
}
removeFile(fileData) {
if ("useForm" === this.option("uploadMode") || !isDefined(fileData)) {
return
}
var file = this._getFile(fileData);
if (file) {
if (file.uploadStarted) {
this._preventFilesUploading([file])
}
this._removeFile(file)
}
}
_toggleFileUploaderEmptyClassName() {
this.$element().toggleClass(FILEUPLOADER_EMPTY_CLASS, !this._files.length || this._hasInvalidFile(this._files))
}
_hasInvalidFile(files) {
for (var i = 0; i < files.length; i++) {
if (!files[i].isValid()) {
return true
}
}
return false
}
_getFileSize(size) {
var i = 0;
var labels = [messageLocalization.format("dxFileUploader-bytes"), messageLocalization.format("dxFileUploader-kb"), messageLocalization.format("dxFileUploader-Mb"), messageLocalization.format("dxFileUploader-Gb")];
var count = labels.length - 1;
while (i < count && size >= 1024) {
size /= 1024;
i++
}
return Math.round(size) + " " + labels[i]
}
_renderSelectButton() {
var $button = $("<div>").addClass(FILEUPLOADER_BUTTON_CLASS).appendTo(this._$inputWrapper);
this._selectButton = this._createComponent($button, Button, {
text: this.option("selectButtonText"),
focusStateEnabled: false,
integrationOptions: {},
disabled: this.option("readOnly"),
hoverStateEnabled: this.option("hoverStateEnabled")
});
this._selectFileDialogHandler = this._selectButtonClickHandler.bind(this);
if ("desktop" === devices.real().deviceType) {
this._selectButton.option("onClick", this._selectFileDialogHandler)
} else {
this._attachSelectFileDialogHandler(this._selectButton.$element())
}
this._attachSelectFileDialogHandler(this.option("dialogTrigger"))
}
_selectButtonClickHandler() {
if (this.option("useNativeInputClick")) {
return
}
if (this._isInteractionDisabled()) {
return false
}
this._isCustomClickEvent = true;
eventsEngine.trigger(this._$fileInput, "click");
this._isCustomClickEvent = false
}
_attachSelectFileDialogHandler(target) {
if (!isDefined(target)) {
return
}
this._detachSelectFileDialogHandler(target);
eventsEngine.on($(target), "click", this._selectFileDialogHandler)
}
_detachSelectFileDialogHandler(target) {
if (!isDefined(target)) {
return
}
eventsEngine.off($(target), "click", this._selectFileDialogHandler)
}
_renderUploadButton() {
if ("useButtons" !== this.option("uploadMode")) {
return
}
var $uploadButton = $("<div>").addClass(FILEUPLOADER_BUTTON_CLASS).addClass(FILEUPLOADER_UPLOAD_BUTTON_CLASS).appendTo(this._$content);
this._uploadButton = this._createComponent($uploadButton, Button, {
text: this.option("uploadButtonText"),
onClick: this._uploadButtonClickHandler.bind(this),
type: this.option("_uploadButtonType"),
integrationOptions: {},
hoverStateEnabled: this.option("hoverStateEnabled")
})
}
_uploadButtonClickHandler() {
this._uploadFiles()
}
_shouldDragOverBeRendered() {
return !this.option("readOnly") && ("useForm" !== this.option("uploadMode") || this.option("nativeDropSupported"))
}
_isInteractionDisabled() {
return this.option("readOnly") || this.option("disabled")
}
_renderInputContainer() {
this._$inputContainer = $("<div>").addClass(FILEUPLOADER_INPUT_CONTAINER_CLASS).appendTo(this._$inputWrapper);
this._$fileInput.addClass(FILEUPLOADER_INPUT_CLASS);
this._renderInput();
var labelId = "dx-fileuploader-input-label-".concat(new Guid);
this._$inputLabel.attr("id", labelId).addClass(FILEUPLOADER_INPUT_LABEL_CLASS).appendTo(this._$inputContainer);
this.setAria("labelledby", labelId, this._$fileInput)
}
_renderInput() {
if (this.option("useNativeInputClick")) {
this._selectButton.option("template", this._selectButtonInputTemplate.bind(this))
} else {
this._$fileInput.appendTo(this._$inputContainer);
this._selectButton.option("template", "content")
}
this._applyInputAttributes(this.option("inputAttr"))
}
_selectButtonInputTemplate(data, content) {
var $content = $(content);
var $text = $("<span>").addClass("dx-button-text").text(data.text);
$content.append($text).append(this._$fileInput);
return $content
}
_renderInputWrapper() {
this._$inputWrapper = $("<div>").addClass(FILEUPLOADER_INPUT_WRAPPER_CLASS).appendTo(this._$content)
}
_detachDragEventHandlers(target) {
if (!isDefined(target)) {
return
}
eventsEngine.off($(target), addNamespace("", this.NAME))
}
_attachDragEventHandlers(target) {
var isCustomTarget = target !== this._$inputWrapper;
if (!isDefined(target) || !this._shouldDragOverBeRendered()) {
return
}
this._detachDragEventHandlers(target);
target = $(target);
eventsEngine.on(target, addNamespace("dragenter", this.NAME), this._dragEnterHandler.bind(this, isCustomTarget));
eventsEngine.on(target, addNamespace("dragover", this.NAME), this._dragOverHandler.bind(this, isCustomTarget));
eventsEngine.on(target, addNamespace("dragleave", this.NAME), this._dragLeaveHandler.bind(this, isCustomTarget));
eventsEngine.on(target, addNamespace("drop", this.NAME), this._dropHandler.bind(this, isCustomTarget))
}
_applyInputAttributes(customAttributes) {
this._$fileInput.attr(customAttributes)
}
_useInputForDrop() {
return this.option("nativeDropSupported") && "useForm" === this.option("uploadMode")
}
_getDropZoneElement(isCustomTarget, e) {
var targetList = isCustomTarget ? Array.from($(this.option("dropZone"))) : [this._$inputWrapper];
targetList = targetList.map(element => $(element).get(0));
return targetList[targetList.indexOf(e.currentTarget)]
}
_dragEnterHandler(isCustomTarget, e) {
if (this.option("disabled")) {
return false
}
if (!this._useInputForDrop()) {
e.preventDefault()
}
var dropZoneElement = this._getDropZoneElement(isCustomTarget, e);
if (isDefined(dropZoneElement) && this._shouldRaiseDragOver(e, dropZoneElement)) {
this._activeDropZone = dropZoneElement;
this._tryToggleDropZoneActive(true, isCustomTarget, e)
}
}
_shouldRaiseDragOver(e, dropZoneElement) {
return null === this._activeDropZone && this.isMouseOverElement(e, dropZoneElement, false) && e.originalEvent.dataTransfer.types.find(item => "Files" === item)
}
_dragOverHandler(isCustomTarget, e) {
if (!this._useInputForDrop()) {
e.preventDefault()
}
e.originalEvent.dataTransfer.dropEffect = "copy";
if (!isCustomTarget) {
var dropZoneElement = this._getDropZoneElement(false, e);
if (this._shouldRaiseDragOver(e, dropZoneElement)) {
this._dragEnterHandler(false, e)
}
if (this._shouldRaiseDragLeave(e, false)) {
this._dragLeaveHandler(false, e)
}
}
}
_dragLeaveHandler(isCustomTarget, e) {
if (!this._useInputForDrop()) {
e.preventDefault()
}
if (this._shouldRaiseDragLeave(e, isCustomTarget)) {
this._tryToggleDropZoneActive(false, isCustomTarget, e);
this._activeDropZone = null
}
}
_shouldRaiseDragLeave(e, isCustomTarget) {
return null !== this._activeDropZone && !this.isMouseOverElement(e, this._activeDropZone, !isCustomTarget, -DRAG_EVENT_DELTA)
}
_tryToggleDropZoneActive(active, isCustom, event) {
var classAction = active ? "addClass" : "removeClass";
var mouseAction = active ? "_dropZoneEnterAction" : "_dropZoneLeaveAction";
this[mouseAction]({
event: event,
dropZoneElement: this._activeDropZone
});
if (!isCustom) {
this.$element()[classAction](FILEUPLOADER_DRAGOVER_CLASS)
}
}
_dropHandler(isCustomTarget, e) {
this._activeDropZone = null;
if (!isCustomTarget) {
this.$element().removeClass(FILEUPLOADER_DRAGOVER_CLASS)
}
if (this._useInputForDrop() || isCustomTarget && this._isInteractionDisabled()) {
return
}
e.preventDefault();
var fileList = e.originalEvent.dataTransfer.files;
var files = this._getFiles(fileList);
if (!this.option("multiple") && files.length > 1 || 0 === files.length) {
return
}
this._changeValue(files);
if ("instantly" === this.option("uploadMode")) {
this._uploadFiles()
}
}
_areAllFilesLoaded() {
return this._files.every(file => !file.isValid() || file._isError || file._isLoaded || file.isAborted)
}
_handleAllFilesUploaded() {
this._recalculateProgress();
if (this._areAllFilesLoaded()) {
this._filesUploadedAction()
}
}
_getAllowedFileTypes(acceptSting) {
if (!acceptSting.length) {
return []
}
return acceptSting.split(",").map(item => item.trim())
}
_isFileTypeAllowed(file, allowedTypes) {
for (var i = 0, n = allowedTypes.length; i < n; i++) {
var allowedType = allowedTypes[i];
if ("." === allowedType[0]) {
allowedType = allowedType.replace(".", "\\.");
if (file.name.match(new RegExp(allowedType + "$", "i"))) {
return true
}
} else {
allowedType = allowedType.replace(new RegExp("\\*", "g"), "");
if (file.type.match(new RegExp(allowedType, "i"))) {
return true
}
}
}
return false
}
_renderWrapper() {
var $wrapper = $("<div>").addClass(FILEUPLOADER_WRAPPER_CLASS).appendTo(this.$element());
var $container = $("<div>").addClass(FILEUPLOADER_CONTAINER_CLASS).appendTo($wrapper);
this._$content = $("<div>").addClass(FILEUPLOADER_CONTENT_CLASS).appendTo($container)
}
_clean() {
this._$fileInput.detach();
delete this._$filesContainer;
this._detachSelectFileDialogHandler(this.option("dialogTrigger"));
this._detachDragEventHandlers(this.option("dropZone"));
if (this._files) {
this._files.forEach(file => {
file.$file = null;
file.$statusMessage = null
})
}
super._clean()
}
abortUpload(fileData) {
if ("useForm" === this.option("uploadMode")) {
return
}
if (isDefined(fileData)) {
var file = this._getFile(fileData);
if (file) {
this._preventFilesUploading([file])
}
} else {
this._preventFilesUploading(this._files)
}
}
upload(fileData) {
if ("useForm" === this.option("uploadMode")) {
return
}
if (isDefined(fileData)) {
var file = this._getFile(fileData);
if (file && isFormDataSupported()) {
this._uploadFile(file)
}
} else {
this._uploadFiles()
}
}
_uploadFiles() {
if (isFormDataSupported()) {
each(this._files, (_, file) => this._uploadFile(file))
}
}
_uploadFile(file) {
this._uploadStrategy.upload(file)
}
_updateProgressBar(file, loadedFileData) {
file.progressBar && file.progressBar.option({
value: loadedFileData.loaded,
showStatus: true
});
this._progressAction({
file: file.value,
segmentSize: loadedFileData.currentSegmentSize,
bytesLoaded: loadedFileData.loaded,
bytesTotal: loadedFileData.total,
event: loadedFileData.event,
request: file.request
})
}
_updateTotalProgress(totalFilesSize, totalLoadedFilesSize) {
var progress = 0;
if (isDefined(totalFilesSize)) {
if (this._files.length > 0 && this._areAllFilesLoaded() && 0 === totalFilesSize && 0 === totalLoadedFilesSize) {
progress = this._getProgressValue(1)
} else if (totalFilesSize) {
progress = this._getProgressValue(totalLoadedFilesSize / totalFilesSize)
}
}
this.option("progress", progress);
this._setLoadedSize(totalLoadedFilesSize)
}
_getProgressValue(ratio) {
return Math.floor(100 * ratio)
}
_initStatusMessage(file) {
file.$statusMessage.css("display", "none")
}
_ensureCancelButtonInitialized(file) {
if (file.isInitialized) {
return
}
file.cancelButton.option("onClick", () => {
this._preventFilesUploading([file]);
this._removeFile(file)
});
var hideCancelButton = () => {
setTimeout(() => {
file.cancelButton.option({
visible: false
})
}, FILEUPLOADER_AFTER_LOAD_DELAY)
};
file.onLoad.add(hideCancelButton);
file.onError.add(hideCancelButton)
}
_createProgressBar(fileSize) {
return this._createComponent($("<div>"), ProgressBar, {
value: void 0,
min: 0,
max: fileSize,
statusFormat: ratio => this._getProgressValue(ratio) + "%",
showStatus: false,
statusPosition: "right"
})
}
_getTotalFilesSize() {
if (!this._totalFilesSize) {
this._totalFilesSize = 0;
each(this._files, (_, file) => {
this._totalFilesSize += file.value.size
})
}
return this._totalFilesSize
}
_getTotalLoadedFilesSize() {
if (!this._totalLoadedFilesSize) {
this._totalLoadedFilesSize = 0;
each(this._files, (_, file) => {
this._totalLoadedFilesSize += file.loadedSize
})
}
return this._totalLoadedFilesSize
}
_setLoadedSize(value) {
this._totalLoadedFilesSize = value
}
_recalculateProgress() {
this._totalFilesSize = 0;
this._totalLoadedFilesSize = 0;
this._updateTotalProgress(this._getTotalFilesSize(), this._getTotalLoadedFilesSize())
}
isMouseOverElement(mouseEvent, element, correctPseudoElements) {
var dragEventDelta = arguments.length > 3 && void 0 !== arguments[3] ? arguments[3] : DRAG_EVENT_DELTA;
if (!element) {
return false
}
var beforeHeight = correctPseudoElements ? parseFloat(window.getComputedStyle(element, ":before").height) : 0;
var afterHeight = correctPseudoElements ? parseFloat(window.getComputedStyle(element, ":after").height) : 0;
var x = getOffset(element).left;
var y = getOffset(element).top + beforeHeight;
var w = element.offsetWidth;
var h = element.offsetHeight - beforeHeight - afterHeight;
var eventX = this._getEventX(mouseEvent);
var eventY = this._getEventY(mouseEvent);
return eventX + dragEventDelta >= x && eventX - dragEventDelta < x + w && eventY + dragEventDelta >= y && eventY - dragEventDelta < y + h
}
_getEventX(e) {
return isTouchEvent(e) ? this._getTouchEventX(e) : e.clientX + this._getDocumentScrollLeft()
}
_getEventY(e) {
return isTouchEvent(e) ? this._getTouchEventY(e) : e.clientY + this._getDocumentScrollTop()
}
_getTouchEventX(e) {
var touchPoint = null;
if (e.changedTouches.length > 0) {
touchPoint = e.changedTouches
} else if (e.targetTouches.length > 0) {
touchPoint = e.targetTouches
}
return touchPoint ? touchPoint[0].pageX : 0
}
_getTouchEventY(e) {
var touchPoint = null;
if (e.changedTouches.length > 0) {
touchPoint = e.changedTouches
} else if (e.targetTouches.length > 0) {
touchPoint = e.targetTouches
}
return touchPoint ? touchPoint[0].pageY : 0
}
_getDocumentScrollTop() {
var document = domAdapter.getDocument();
return document.documentElement.scrollTop || document.body.scrollTop
}
_getDocumentScrollLeft() {
var document = domAdapter.getDocument();
return document.documentElement.scrollLeft || document.body.scrollLeft
}
_updateReadOnlyState() {
var readOnly = this.option("readOnly");
this._selectButton.option("disabled", readOnly);
this._files.forEach(file => {
var _file$cancelButton;
return null === (_file$cancelButton = file.cancelButton) || void 0 === _file$cancelButton ? void 0 : _file$cancelButton.option("disabled", readOnly)
});
this._updateInputLabelText();
this._attachDragEventHandlers(this._$inputWrapper)
}
_updateHoverState() {
var _this$_selectButton, _this$_uploadButton;
var value = this.option("hoverStateEnabled");
null === (_this$_selectButton = this._selectButton) || void 0 === _this$_selectButton ? void 0 : _this$_selectButton.option("hoverStateEnabled", value);
null === (_this$_uploadButton = this._uploadButton) || void 0 === _this$_uploadButton ? void 0 : _this$_uploadButton.option("hoverStateEnabled", value);
this._files.forEach(file => {
var _file$uploadButton, _file$cancelButton2;
null === (_file$uploadButton = file.uploadButton) || void 0 === _file$uploadButton ? void 0 : _file$uploadButton.option("hoverStateEnabled", value);
null === (_file$cancelButton2 = file.cancelButton) || void 0 === _file$cancelButton2 ? void 0 : _file$cancelButton2.option("hoverStateEnabled", value)
})
}
_optionChanged(args) {
var {
name: name,
value: value,
previousValue: previousValue
} = args;
switch (name) {
case "height":
case "width":
this._updateFileNameMaxWidth();
super._optionChanged(args);
break;
case "value":
!value.length && this._$fileInput.val("");
if (!this._preventRecreatingFiles) {
this._createFiles();
this._renderFiles()
}
this._recalculateProgress();
super._optionChanged(args);
break;
case "name":
this._initFileInput();
super._optionChanged(args);
break;
case "accept":
this._initFileInput();
break;
case "multiple":
this._initFileInput();
if (!args.value) {
this.clear()
}
break;
case "readOnly":
this._updateReadOnlyState();
super._optionChanged(args);
break;
case "disabled":
this._updateInputLabelText();
super._optionChanged(args);
break;
case "selectButtonText":
this._selectButton.option("text", value);
break;
case "uploadButtonText":
this._uploadButton && this._uploadButton.option("text", value);
break;
case "_uploadButtonType":
this._uploadButton && this._uploadButton.option("type", value);
break;
case "_buttonStylingMode":
this._files.forEach(file => {
var _file$uploadButton2, _file$cancelButton3;
null === (_file$uploadButton2 = file.uploadButton) || void 0 === _file$uploadButton2 ? void 0 : _file$uploadButton2.option("stylingMode", value);
null === (_file$cancelButton3 = file.cancelButton) || void 0 === _file$cancelButton3 ? void 0 : _file$cancelButton3.option("stylingMode", value)
});
break;
case "dialogTrigger":
this._detachSelectFileDialogHandler(previousValue);
this._attachSelectFileDialogHandler(value);
break;
case "dropZone":
this._detachDragEventHandlers(previousValue);
this._attachDragEventHandlers(value);
break;
case "maxFileSize":
case "minFileSize":
case "allowedFileExtensions":
case "invalidFileExtensionMessage":
case "invalidMaxFileSizeMessage":
case "invalidMinFileSizeMessage":
case "readyToUploadMessage":
case "uploadedMessage":
case "uploadFailedMessage":
case "uploadAbortedMessage":
this._invalidate();
break;
case "labelText":
this._updateInputLabelText();
break;
case "showFileList":
if (!this._preventRecreatingFiles) {
this._renderFiles()
}
break;
case "uploadFile":
case "uploadChunk":
case "chunkSize":
this._setUploadStrategy();
break;
case "abortUpload":
case "uploadUrl":
case "progress":
case "uploadMethod":
case "uploadHeaders":
case "uploadCustomData":
case "extendSelection":
break;
case "hoverStateEnabled":
this._updateHoverState();
super._optionChanged(args);
break;
case "allowCanceling":
case "uploadMode":
this.clear();
this._invalidate();
break;
case "onBeforeSend":
this._createBeforeSendAction();
break;
case "onUploadStarted":
this._createUploadStartedAction();
break;
case "onUploaded":
this._createUploadedAction();
break;
case "onFilesUploaded":
this._createFilesUploadedAction();
break;
case "onProgress":
this._createProgressAction();
break;
case "onUploadError":
this._createUploadErrorAction();
break;
case "onUploadAborted":
this._createUploadAbortedAction();
break;
case "onDropZoneEnter":
this._createDropZoneEnterAction();
break;
case "onDropZoneLeave":
this._createDropZoneLeaveAction();
break;
case "useNativeInputClick":
this._renderInput();
break;
case "useDragOver":
this._attachDragEventHandlers(this._$inputWrapper);
break;
case "nativeDropSupported":
this._invalidate();
break;
case "inputAttr":
this._applyInputAttributes(this.option(name));
break;
case "hint":
this._initFileInput();
super._optionChanged(args);
break;
default:
super._optionChanged(args)
}
}
_resetInputValue(force) {
if ("useForm" === this.option("uploadMode") && !force) {
return
}
this._doPreventInputChange = true;
this._$fileInput.val("");
this._doPreventInputChange = false
}
clear() {
this.option("value", [])
}
}
class FileBlobReader {
constructor(file, chunkSize) {
this.file = file;
this.chunkSize = chunkSize;
this.index = 0
}
read() {
if (!this.file) {
return null
}
var result = this.createBlobResult(this.file, this.index, this.chunkSize);
if (result.isCompleted) {
this.file = null
}
this.index++;
return result
}
createBlobResult(file, index, chunkSize) {
var currentPosition = index * chunkSize;
return {
blob: this.sliceFile(file, currentPosition, chunkSize),
index: index,
isCompleted: currentPosition + chunkSize >= file.size
}
}
sliceFile(file, startPos, length) {
if (file.slice) {
return file.slice(startPos, startPos + length)
}
if (file.webkitSlice) {
return file.webkitSlice(startPos, startPos + length)
}
return null
}
}
class Fil