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things-upload.html
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<!--
@license
Copyright © HatioLab Inc. All rights reserved.
-->
<!--
## things-upload
`<things-upload>` is a Polymer element for uploading multiple files with drag and drop support.
`<things-upload>` 는 여러개의 파일을 동시에 업로드할수 있는 컴포넌트이다.
### Example:
```html
<things-upload></things-upload>
```
### Custom File List Item Template
```html
<things-upload>
<template class="file">
[[file.name]]: [[file.status]]
</template>
</things-upload>
```
### Styling
The following custom properties are available for styling the component.
Style 형식에는 아래와 같다.
Custom property | Description | Default
----------------|-------------|----------
`--things-upload-drag-ripple`|styles for the ripple animation in the drop area|`{}`
|애니메인션 스타일|`{}`
`--things-upload-drop-label`|styles for the drop label|`{}`
|라벨 스타일|`{}`
`--things-upload-drop-label-dragover`|styles for the drop label when overing the component with files|`{}`
|라벨 드레고버 스타일|`{}`
`--things-upload-drop-label-icon`|styles for the drop icon|`{}`
|라벨 아이콘 스타일|`{}`
`--things-upload-file-list`|styles for the file list|`{}`
|파일 리스트 스타일|`{}`
`--things-upload-buttons`|styles for the buttons container|`{}`
|업로드 버튼 스타일|`{}`
`--things-upload-buttons-nodrop`|styles for the buttons container when `nodrop` property is `true`|`{}`
|업로드 버튼 nodrop스타일|`{}`
`--things-upload-button`|styles for the buttons|`{}`
|업로드 버튼 nodrop스타일|`{}`
`--things-upload-button-add`|styles for the upload button|`{}`
|업로드 버튼 nodrop스타일|`{}`
`--things-upload-button-add-nodrop`|styles for the upload button when `nodrop` property is `true`|`{}`
|업로드 버튼 nodrop스타일|`{}`
`--things-upload-file-canceled`|styles for the upload cancel. Use for overriding file cancel animation|`{}`
|업로드 파일 cancel 스타일|`{}`
@element things-upload
@demo demo/ Basic Examples
@demo demo/advanced.html Advanced Usage
-->
<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../iron-flex-layout/iron-flex-layout.html">
<link rel="import" href="../iron-icons/iron-icons.html">
<link rel="import" href="../paper-styles/typography.html">
<link rel="import" href="../paper-ripple/paper-ripple.html">
<link rel="import" href="../paper-button/paper-button.html">
<link rel="import" href="things-upload-template.html">
<dom-module id="things-upload">
<template>
<style>
:host {
@apply(--layout-vertical);
display: block;
position: relative;
text-align: left;
background-color: var(--things-whitegrey-background-color);
}
:host(:not([nodrop])) {
border: 1px dashed;
border-color: var(--divider-color, #666);
border-radius: 3px;
overflow: hidden;
padding: 16px;
}
:host([dragover-valid]) {
border-color: var(--primary-color, #00B4F0);
}
/*
Cover the entire element with transparent overlay when dragging files
over it. Helps to reduce the amount of events fired.
*/
:host::before {
@apply(--layout-fit);
content: '';
display: none;
z-index: 10;
}
:host([dragover])::before {
display: block;
}
#dragRipple {
color: var(--light-primary-color, #7CD8F7);
@apply(--things-upload-drag-ripple);
}
#dropLabel {
@apply(--layout-flex);
@apply(--paper-font-body2);
position: relative;
padding: .43em .57em;
margin: 0 .29em;
color: var(--disabled-text-color, #b3b3b3);
@apply(--things-upload-drop-label);
text-align:center
}
:host([dragover-valid]) #dropLabel,
:host([dragover-valid]) ::content .drop-label {
color: var(--primary-color, #00B4F0);
@apply(--things-upload-drop-label-dragover);
}
#dropLabel ::content iron-icon {
margin-right: .25em;
@apply(--things-upload-drop-label-icon);
}
#fileList {
position: relative;
@apply(--things-upload-file-list);
}
#buttons {
@apply(--layout-horizontal);
float:right;
position:relative;
margin-top:-35px;
@apply(--things-upload-buttons);
}
#buttonsPrimary {
@apply(--layout-horizontal);
@apply(--layout-flex);
@apply(--layout-start);
margin-left: -.29em;
@apply(--things-upload-buttons-primary);
}
#addFiles {
@apply(--paper-font-button);
padding: .43em .57em;
background: var(--primary-color, #00B4F0);
color: var(--primary-font-color, #FFFFFF);
@apply(--things-upload-button-add);
}
#addFiles[disabled] {
background: var(--divider-color, #e0e0e0);
color: var(--disabled-text-color, gray);
@apply(--things-upload-button-add-disabled);
}
</style>
<things-i18n-msg msgid="label.storage" msg="{{lImageSelector}}" auto hidden>Image Selector</things-i18n-msg>
<div id="dropLabel" hidden$="[[nodrop]]">
<content select=".drop-label">
<iron-icon icon="file-upload"></iron-icon>
[[_i18nPlural(maxFiles, i18n.dropFiles)]]
</content>
</div>
<div id="buttons">
<paper-button id="addFiles" on-tap="_onAddFilesClick" disabled="[[_maxFilesAdded(maxFiles, files.length)]]">[[_i18nPlural(maxFiles, i18n.addFiles)]]</paper-button>
<paper-button id="cancelAll" on-tap="_onCancelAllClick" hidden$="[[!showCancelAll]]">[[i18n.cancelAll]]</paper-button>
</div>
<template id="defaultFileTemplate">
<things-upload-template file="[[file]]"></things-upload-template>
</template>
<div id="fileList" on-file-remove="_onFileRemove">
<template id="fileListRepeater" is="dom-repeat" items="[[files]]" as="file"></template>
</div>
<content></content>
<input type="file" id="fileInput" on-change="_onFileInputChange" hidden accept="{{accept}}">
<paper-ripple id="dragRipple" noink></paper-ripple>
</template>
</dom-module>
<script>
Polymer({
is: 'things-upload',
properties: {
/**
*en-us
*
*Define whether the element supports drop files on it for uploading.
*
*ko-kr
*
*드랙해서 파일 업로드하는 기능,default 값은 지원되지 않음.
***********
* @type {Boolean}
*/
nodrop: {
type: Boolean,
reflectToAttribute: true,
value: function() {
try {
return !!document.createEvent('TouchEvent');
} catch (e) {
return false;
}
},
},
/**
*en-us
*
*Server URL.
**
*ko-kr
*
*서버 URL.
********
* @type {String}
*/
target: {
type: String,
value: ''
},
/**
*en-us
*
*HTTP Method used to send the files.
*
*ko-kr
*
*HTTP 매소드
********
* @type {String}
*/
method: {
type: String,
value: 'POST'
},
/**
*en-us
*
*Key-Value map to send to the server.
*
*ko-kr
*
*서버로 보낼 Key-Value map Object
********
* @type {Object}
*/
headers: {
type: Object,
value: {}
},
/**
*en-us
*
*Max time for the upload process, if exceeded XHR will be aborted.
*
*ko-kr
*
*오랜 시간동안 업로드 하지 않으면 timeout 발생
********
* @type {Number}
*/
timeout: {
type: Number,
value: 0
},
_dragover: {
type: Boolean,
value: false,
observer: '_dragoverChanged'
},
/**
*en-us
*
*Specifies if the cancel-all button is visible.
*
*ko-kr
*
*cancelall 기능
*******
* @type {Boolean}
*/
showCancelAll: {
type: Boolean,
value: false
},
// TODO: make this private in a separate PR, we dont want users modifying the array.
files: {
type: Array,
value: function() {
return [];
}
},
/**
*en-us
*
*Specifies whether the file selection popup is configured to select
*
*ko-kr
*
*여러 파일을 동시에 업로드여부
********
* @type {Boolean}
*/
nomultiple: {
type: Boolean,
value: false
},
/**
*en-us
*
*Limit of files to upload, by default it is unlimited.
*
*ko-kr
*
*업로드 파일 최대개수 설정,default값은 제한없음.
*******
* @type {Number}
*/
maxFiles: {
type: Number,
value: Infinity
},
/**
*en-us
*
*Specifies the types of files that the server accepts.
*
*ko-kr
*
*파일type 설정
********
* @type {String}
*/
accept: {
type: String,
value: ''
},
/**
*en-us
*
*Specifies the maximum file size allowed to upload.
*
*ko-kr
*
*업로드 파일 최대사이즈,default값은 제한없음.
*******
* @type {Number}
*/
maxFileSize: {
type: Number,
value: Infinity
},
/**
*en-us
*
*Specifies if the dragover is validated with maxFiles
*
*ko-kr
*
*Specifies if the dragover is validated with maxFiles
***********
* @type {Boolean}
*/
_dragoverValid: {
type: Boolean,
value: false,
observer: '_dragoverValidChanged'
},
i18n: {
type: Object,
value: function() {
return {
dropFiles: {
one: Things.DataGlobal.t('text.drop_file_here'),
many: Things.DataGlobal.t('text.drop_files_here')
},
addFiles: {
one: Things.DataGlobal.t('text.select_file'),
many: Things.DataGlobal.t('text.add_files')
},
cancel: Things.DataGlobal.t('text.cancel'),
cancelAll: Things.DataGlobal.t('text.cancel_all'),
error: {
tooManyFiles: Things.DataGlobal.t('text.too_many_files'),
fileIsTooBig: Things.DataGlobal.t('text.file_is_too_big'),
incorrectFileType: Things.DataGlobal.t('text.incorrect_file_type')
},
uploading: {
status: {
connecting: Things.DataGlobal.t('text.connecting'),
stalled: Things.DataGlobal.t('text.stalled'),
processing: Things.DataGlobal.t('text.processing_file')
},
remainingTime: {
prefix: Things.DataGlobal.t('text.remaining_time'),
unknown: Things.DataGlobal.t('text.unknown_remaining_time')
},
error: {
serverUnavailable: Things.DataGlobal.t('text.server_unavailable'),
unexpectedServerError: Things.DataGlobal.t('text.unexpected_server_error'),
forbidden: Things.DataGlobal.t('text.forbidden')
}
},
units: {
size: ['B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
}
};
}
}
},
listeners: {
dragover: '_onDragover',
dragleave: '_onDragleave',
drop: '_onDrop',
'file-retry': '_onFileRetry',
'file-abort': '_onFileAbort'
},
attached: function() {
this._templatizeFileList();
},
_formatSize: function(bytes) {
if (typeof this.i18n.formatSize === 'function') {
return this.i18n.formatSize(bytes);
}
// https://wiki.ubuntu.com/UnitsPolicy
var base = this.i18n.units.sizeBase || 1000;
var unit = ~~(Math.log(bytes) / Math.log(base));
var dec = Math.max(0, Math.min(3, unit - 1));
var size = parseFloat((bytes / Math.pow(base, unit)).toFixed(dec));
return size + ' ' + this.i18n.units.size[unit];
},
_splitTimeByUnits: function(time) {
var unitSizes = [60, 60, 24, Infinity];
var timeValues = [0];
for (var i = 0, unitSize; i < unitSizes.length && time > 0; i++) {
timeValues[i] = time % unitSizes[i];
time = Math.floor(time / unitSizes[i]);
}
return timeValues;
},
_formatTime: function(seconds, split) {
if (typeof this.i18n.formatTime === 'function') {
return this.i18n.formatTime(seconds, split);
}
// Fill HH:MM:SS with leading zeros
while (split.length < 3) {
split.push(0);
}
return split
.reverse()
.map(function(number) {
return (number < 10 ? '0' : '') + number;
})
.join(':');
},
_formatFileProgress: function(file) {
return file.totalStr + ': ' +
file.progress + '% (' +
(file.loaded > 0 ?
this.i18n.uploading.remainingTime.prefix + file.remainingStr :
this.i18n.uploading.remainingTime.unknown) +
')';
},
_maxFilesAdded: function() {
return this.maxFiles >= 0 && this.files.length >= this.maxFiles;
},
_dragRippleAction: function(action, event) {
var rippleActionEvent = {
detail: {
x: event.clientX,
y: event.clientY
}
};
if (action == 'down') {
this.$.dragRipple.downAction(rippleActionEvent);
// paper-ripple currently has hard Ripple.MAX_RADIUS limit of 300, and
// doesn’t expose Ripple constructor or any other means to modify the
// limit. Monkey-patching the radius calculation of just added Ripple
// instance to disable the radius limit.
//
// Also fixes the default radius animation formula, which otherwise
// tends to make the duration too small for large ripples that we have.
//
// FIXME: Remove this when the paper-ripple rewrite would be merged.
// Issue: https://github.com/vaadin/vaadin-upload/issues/24
//
// See:
// - https://github.com/PolymerElements/paper-ripple/issues/27
// - https://github.com/PolymerElements/paper-ripple/pull/63
//
var lastRipple = this.$.dragRipple.ripples[this.$.dragRipple.ripples.length - 1];
if (!lastRipple.hasOwnProperty('radius')) {
Object.defineProperty(lastRipple, 'radius', {
get: function() {
var width2 = this.containerMetrics.width * this.containerMetrics.width;
var height2 = this.containerMetrics.height * this.containerMetrics.height;
var waveRadius = Math.sqrt(width2 + height2) * 1.1 + 5;
var duration = 0.9 + 0.2 * (waveRadius / 300);
var timeNow = this.mouseInteractionSeconds / duration;
var size = waveRadius * (1 - Math.pow(80, -timeNow));
return Math.abs(size);
}
});
}
} else {
this.$.dragRipple.upAction(rippleActionEvent);
}
},
_onDragover: function(event) {
event.preventDefault();
if (!this._dragover) {
this._dragoverValid = !this._maxFilesAdded();
}
if (this._dragoverValid && !this._dragover && !this.nodrop) {
this._dragRippleAction('down', event);
}
event.dataTransfer.dropEffect = !this._dragoverValid || this.nodrop ? 'none' : 'copy';
this._dragover = true;
},
_onDragleave: function(event) {
// Dragleave sometimes fired on children, skipping them. Fixes flickeing
// when quickly dragging over.
if (Polymer.dom(event).rootTarget === this) {
event.preventDefault();
if (this._dragover && !this.nodrop) {
this._dragRippleAction('up', event);
this._dragover = this._dragoverValid = false;
}
}
},
_onDrop: function(event) {
if (!this.nodrop) {
event.preventDefault();
this._dragRippleAction('up', event);
this._dragover = this._dragoverValid = false;
this._dragRippleAction('upAction', event);
this._addFiles(event.dataTransfer.files);
}
},
// Override for tests
_createXhr: function(file) {
return new XMLHttpRequest();
},
_configureXhr: function(xhr) {
if (typeof this.headers == 'string') {
try {
this.headers = JSON.parse(this.headers);
} catch (e) {
this.headers = undefined;
}
}
for (var key in this.headers) {
xhr.setRequestHeader(key, this.headers[key]);
}
if (this.timeout) {
xhr.timeout = this.timeout;
}
},
_setStatus: function(file, total, loaded, elapsed, progress) {
file.elapsed = elapsed;
file.elapsedStr = this._formatTime(file.elapsed, this._splitTimeByUnits(file.elapsed));
file.remaining = Math.ceil(elapsed * (total / loaded - 1));
file.remainingStr = this._formatTime(file.remaining, this._splitTimeByUnits(file.remaining));
file.speed = ~~(total / elapsed / 1024);
file.totalStr = this._formatSize(total);
file.loadedStr = this._formatSize(loaded);
file.status = this._formatFileProgress(file);
},
_uploadFile: function(file) {
if (file.uploading) {
return;
}
var ini = Date.now();
var xhr = file.xhr = this._createXhr(file);
var stalledId, last;
// onprogress is called always after onreadystatechange
xhr.upload.onprogress = function(e) {
clearTimeout(stalledId);
last = Date.now();
var elapsed = (last - ini) / 1000;
var loaded = e.loaded, total = e.total, progress = ~~(loaded / total * 100);
file.loaded = loaded;
file.progress = progress;
file.indeterminate = loaded <= 0 || loaded >= total, true;
if (file.error) {
file.indeterminate = file.status = undefined;
} else if (file.abort) {
file.status = 'Upload cancelled.';
} else if (progress < 100) {
this._setStatus(file, total, loaded, elapsed, progress);
stalledId = setTimeout(function() {
file.status = this.i18n.uploading.status.stalled;
this._notifyFileChanges(file);
}.bind(this), 2000);
} else {
file.loadedStr = file.totalStr;
file.status = this.i18n.uploading.status.processing;
file.uploading = false;
}
this._notifyFileChanges(file);
this.fire('upload-progress', {file: file, xhr: xhr});
}.bind(this);
// More reliable than xhr.onload
xhr.onreadystatechange = function(e) {
if (xhr.readyState == 4) {
clearTimeout(stalledId);
file.indeterminate = file.uploading = false;
file.status = '';
if (file.abort) {
file.error = file.complete = file.progress = file.status = false;
this._notifyFileChanges(file);
return;
}
// Custom listener can modify the default behavior either
// preventing default, changing the xhr, or setting the file error
var evt = this.fire('upload-response', {file: file, xhr: xhr}, {cancelable: true});
if (evt.defaultPrevented) {
return;
}
if (xhr.status === 0) {
file.error = this.i18n.uploading.error.serverUnavailable;
} else if (xhr.status >= 500) {
file.error = this.i18n.uploading.error.unexpectedServerError;
} else if (xhr.status >= 400) {
file.error = this.i18n.uploading.error.forbidden;
}
file.complete = !file.error;
this.fire('upload-' + (file.error ? 'error' : 'success'), {file: file, xhr: xhr});
this._notifyFileChanges(file);
}
}.bind(this);
var formData = new FormData();
formData.append('file', file, file.name);
file.uploadTarget = this.target || '';
var evt = this.fire('upload-before', {file: file, xhr: xhr, formData: formData}, {cancelable: true});
if (evt.defaultPrevented) {
return;
}
// Called after all of the above.
xhr.addEventListener('loadend', function () {
this._updateStatus();
this._setResponse(this.parseResponse());
if (!this.succeeded) {
this.rejectCompletes(new Error('The request failed with status code: ' + this.xhr.status));
return;
}
this.resolveCompletes(this);
}.bind(this));
xhr.open(this.method, file.uploadTarget, true);
this._configureXhr(xhr);
// Custom listener could modify the xhr just before sending it
// preventing default
evt = this.fire('upload-request', {file: file, xhr: xhr, formData:formData}, {cancelable: true});
if (evt.defaultPrevented) {
return;
}
file.status = this.i18n.uploading.status.connecting;
file.uploading = file.indeterminate = true;
file.abort = file.error = undefined;
this.fire('upload-start', {file: file, xhr: xhr, formData:formData});
this._notifyFileChanges(file);
xhr.send(formData);
},
_retryFileUpload: function(file) {
var evt = this.fire('upload-retry', {file: file, xhr: file.xhr}, {cancelable: true});
if (!evt.defaultPrevented) {
this.async(this._uploadFile.bind(this, file));
}
},
_abortFileUpload: function(file) {
var evt = this.fire('upload-abort', {file: file, xhr: file.xhr}, {cancelable: true});
if (!evt.defaultPrevented) {
file.abort = true;
if (file.xhr) {
file.xhr.abort();
}
}
},
_notifyFileChanges: function(file) {
var p = 'files.' + this.files.indexOf(file) + '.';
for (var i in file) {
if (file.hasOwnProperty(i)) {
this.notifyPath(p + i, file[i]);
}
}
},
_addFiles: function(files) {
Array.prototype.forEach.call(files, this._addFile.bind(this));
},
/**
* Add the file for uploading. Called internally for each file after picking files from dialog or dropping files.
*
* @param {File} file File being added
*/
_addFile: function(file) {
if (this._maxFilesAdded()) {
this.fire('file-reject', {file: file, error: this.i18n.error.tooManyFiles});
return;
}
if (this.maxFileSize >= 0 && file.size > this.maxFileSize) {
this.fire('file-reject', {file: file, error: this.i18n.error.fileIsTooBig});
return;
}
var mimeType = file.type ? file.type.match(/^[^\/]*\//)[0] : null;
var fileType = file.name.match(/\.[^\.]*$|$/)[0];
var re = new RegExp('^(' + this.accept.replace(/[, ]+/g, '|').replace('/*', '/.*') + ')$');
if (this.accept && !(re.test(mimeType) || re.test(fileType))) {
this.fire('file-reject', {file: file, error: this.i18n.error.incorrectFileType});
return;
}
file.loaded = 0;
this.unshift('files', file);
this.fire('file-add', {file: file});
this._uploadFile(file);
},
/**
* Remove file from upload list. Called internally if file upload was canceled.
* @param {File} file File to remove
*/
_removeFile: function(file) {
var evt = this.fire('file-remove', {file: file}, {cancelable: true});
if (!evt.defaultPrevented) {
this.splice('files', this.files.indexOf(file), 1);
}
},
_onAddFilesClick: function(event) {
if (document.createEvent) {
this.$.fileInput.multiple = !this.nomultiple && this.maxFiles != 1;
this.$.fileInput.value = '';
this.$.fileInput.click();
}
},
_onFileInputChange: function(event) {
this._addFiles(event.target.files);
},
_templatizeFileList: function() {
var template = Polymer.dom(this).querySelector('.file') || this.$.defaultFileTemplate;
this.$.fileListRepeater.templatize(template);
Polymer.Bind.prepareModel(this.$.fileListRepeater);
Polymer.Base.prepareModelNotifyPath(this.$.fileListRepeater);
},
_onFileRetry: function(event) {
this._retryFileUpload(event.detail.file);
},
_onFileAbort: function(event) {
this._abortFileUpload(event.detail.file);
},
_onFileRemove: function(event) {
event.stopPropagation();
this._removeFile(event.detail.file);
},
_onCancelAllClick: function(event) {
for (var i = this.files.length; i > 0; --i) {
this._abortFileUpload(this.files[i - 1]);
}
},
_dragoverChanged: function(dragover) {
this.toggleAttribute('dragover', dragover);
},
_dragoverValidChanged: function(dragoverValid) {
this.toggleAttribute('dragover-valid', dragoverValid);
},
_i18nPlural: function(value, plural) {
return value == 1 ? plural.one : plural.many;
}
});
/**
*en-us
*
* Fired when a file cannot be added to the queue due to a constrain:
* file-size, file-type or maxFiles
*
*ko-kr
*
* 파일 업로드 거절
* ********
* @event file-reject
* @param {Object} detail
* @param {Object} detail.file the file added
* @param {Object} detail.error the cause
*/
/**
*en-us
*
* Fired when a file is added for uploading.
*
*ko-kr
*
* 업로드 파일 추가
* *******
* @event file-add
* @param {Object} detail
* @param {Object} detail.file the file added
*/
/**
*en-us
*
* Fired when a file is removed from the file list, e. g. when the file
* upload is aborted. If the default is prevented, then the file would not be
* removed from the list.
*
*ko-kr
*
* 업로드전 파일 삭제
* ******
* @event file-remove
* @param {Object} detail
* @param {Object} detail.file the file to be removed
*/
/**
*en-us
*
* Fired before the XHR is opened. Could be used for changing the request
* URL. If the default is prevented, then XHR would not be opened.
*
*ko-kr
*
* 업로드 전
* ******
* @event upload-before
* @param {Object} detail
* @param {Object} detail.xhr the xhr
* @param {Object} detail.file the file being uploaded
* @param {Object} detail.file.uploadTarget the upload request URL, initialized with the value of vaadin-upload `target` property
*/
/**
*en-us
*
* Fired when the XHR has been opened but not sent yet.
* Useful to change some parameters like headers, etc.
* If the event is preventDefault `vaadin-upload` will not send the
* request allowing the user to do something on his own.
*
*ko-kr
*
* 업로드 request
* *******
* @event upload-request
* @param {Object} detail
* @param {Object} detail.xhr the xhr
* @param {Object} detail.file the file being uploaded
*/
/**
*en-us
*
* Fired when the XHR is sent.
*
*ko-kr
*
* 업로드 시작
* *******
* @event upload-start
* @param {Object} detail
* @param {Object} detail.xhr the xhr
* @param {Object} detail.file the file being uploaded
*/
/**
*en-us
*
* Fired as many times as the progress is updated.
*
*ko-kr
*
* 업로드 상태
* ******
* @event upload-progress
* @param {Object} detail
* @param {Object} detail.xhr the xhr
* @param {Object} detail.file the file being uploaded with loaded info
*/
/**
* en-us
*
* Fired when we have the actual server response, and before the component
* analises it. It's useful for developers to make the upload fail depending
* on the server response. If the event is preventDefault the vaadin-upload
* will return allowing the user to do something on his own like retry the
* upload, etc. since he has full access to the `xhr` and `file` objects.
* Otherwise, if the event is not prevented default `vaadin-upload` continues
* with the normal workflow checking the `xhr.status` and `file.error`
* which also might be modified by the user to force a customised response.
*
*ko-kr
*
*업로드 response
********
* @event upload-response
* @param {Object} detail
* @param {Object} detail.xhr the xhr
* @param {Object} detail.file the file being uploaded
*/
/**
*en-us
*
* Fired in case the upload process succeed.