Updated: working version
This commit is contained in:
buchslava
404
components/file-upload/file-uploader.ts
Normal file
404
components/file-upload/file-uploader.ts
Normal file
@@ -0,0 +1,404 @@
|
||||
import {
|
||||
EventEmitter, ElementRef, Renderer
|
||||
} from 'angular2/angular2';
|
||||
|
||||
import {FileLikeObject} from './file-like-object';
|
||||
import {FileItem} from './file-item';
|
||||
|
||||
function isFile(value) {
|
||||
return (File && value instanceof File);
|
||||
}
|
||||
|
||||
function isFileLikeObject(value) {
|
||||
return value instanceof FileLikeObject;
|
||||
}
|
||||
|
||||
export class FileUploader {
|
||||
public url:string;
|
||||
public isUploading:boolean = false;
|
||||
public queue:Array<any> = [];
|
||||
public progress:number = 0;
|
||||
public autoUpload:boolean = false;
|
||||
public isHTML5:boolean = true;
|
||||
public removeAfterUpload:boolean = false;
|
||||
public queueLimit:number;
|
||||
public _nextIndex = 0;
|
||||
public filters:Array<any> = [];
|
||||
private _failFilterIndex:number;
|
||||
|
||||
constructor(public options:any) {
|
||||
// Object.assign(this, options);
|
||||
this.url = options.url;
|
||||
this.filters.unshift({name: 'queueLimit', fn: this._queueLimitFilter});
|
||||
this.filters.unshift({name: 'folder', fn: this._folderFilter});
|
||||
}
|
||||
|
||||
public addToQueue(files, options, filters) {
|
||||
let list = [];
|
||||
for (let file of files) {
|
||||
list.push(file);
|
||||
}
|
||||
|
||||
let arrayOfFilters = this._getFilters(filters);
|
||||
let count = this.queue.length;
|
||||
let addedFileItems = [];
|
||||
|
||||
list.map(some => {
|
||||
let temp = new FileLikeObject(some);
|
||||
|
||||
if (this._isValidFile(temp, [], options)) {
|
||||
let fileItem = new FileItem(this, some, options);
|
||||
addedFileItems.push(fileItem);
|
||||
this.queue.push(fileItem);
|
||||
this._onAfterAddingFile(fileItem);
|
||||
} else {
|
||||
let filter = arrayOfFilters[this._failFilterIndex];
|
||||
this._onWhenAddingFileFailed(temp, filter, options);
|
||||
}
|
||||
});
|
||||
|
||||
if (this.queue.length !== count) {
|
||||
this._onAfterAddingAll(addedFileItems);
|
||||
this.progress = this._getTotalProgress();
|
||||
}
|
||||
|
||||
this._render();
|
||||
|
||||
if (this.autoUpload) {
|
||||
this.uploadAll();
|
||||
}
|
||||
}
|
||||
|
||||
public removeFromQueue(value) {
|
||||
let index = this.getIndexOfItem(value);
|
||||
let item = this.queue[index];
|
||||
if (item.isUploading) {
|
||||
item.cancel();
|
||||
}
|
||||
|
||||
this.queue.splice(index, 1);
|
||||
item._destroy();
|
||||
this.progress = this._getTotalProgress();
|
||||
}
|
||||
|
||||
public clearQueue() {
|
||||
while (this.queue.length) {
|
||||
this.queue[0].remove();
|
||||
}
|
||||
|
||||
this.progress = 0;
|
||||
}
|
||||
|
||||
public uploadItem(value:FileItem) {
|
||||
let index = this.getIndexOfItem(value);
|
||||
let item = this.queue[index];
|
||||
let transport = this.isHTML5 ? '_xhrTransport' : '_iframeTransport';
|
||||
|
||||
item._prepareToUploading();
|
||||
if (this.isUploading) {
|
||||
return;
|
||||
}
|
||||
|
||||
this.isUploading = true;
|
||||
this[transport](item);
|
||||
}
|
||||
|
||||
public cancelItem(value) {
|
||||
let index = this.getIndexOfItem(value);
|
||||
let item = this.queue[index];
|
||||
let prop = this.isHTML5 ? '_xhr' : '_form';
|
||||
|
||||
if (item && item.isUploading) {
|
||||
item[prop].abort();
|
||||
}
|
||||
}
|
||||
|
||||
public uploadAll() {
|
||||
let items = this.getNotUploadedItems().filter(item => !item.isUploading);
|
||||
if (!items.length) {
|
||||
return;
|
||||
}
|
||||
|
||||
items.map(item => item._prepareToUploading());
|
||||
items[0].upload();
|
||||
}
|
||||
|
||||
public cancelAll() {
|
||||
let items = this.getNotUploadedItems();
|
||||
items.map(item => item.cancel());
|
||||
}
|
||||
|
||||
|
||||
public isFile(value) {
|
||||
return isFile(value);
|
||||
}
|
||||
|
||||
public isFileLikeObject(value) {
|
||||
return value instanceof FileLikeObject;
|
||||
}
|
||||
|
||||
public getIndexOfItem(value) {
|
||||
return typeof value === 'number' ? value : this.queue.indexOf(value);
|
||||
}
|
||||
|
||||
public getNotUploadedItems() {
|
||||
return this.queue.filter(item => !item.isUploaded);
|
||||
}
|
||||
|
||||
public getReadyItems() {
|
||||
return this.queue
|
||||
.filter(item => (item.isReady && !item.isUploading))
|
||||
.sort((item1, item2) => item1.index - item2.index);
|
||||
}
|
||||
|
||||
public destroy() {
|
||||
/*forEach(this._directives, (key) => {
|
||||
forEach(this._directives[key], (object) => {
|
||||
object.destroy();
|
||||
});
|
||||
});*/
|
||||
}
|
||||
|
||||
public onAfterAddingAll(fileItems) {
|
||||
}
|
||||
|
||||
public onAfterAddingFile(fileItem) {
|
||||
}
|
||||
|
||||
public onWhenAddingFileFailed(item, filter, options) {
|
||||
}
|
||||
|
||||
public onBeforeUploadItem(fileItem) {
|
||||
}
|
||||
|
||||
public onProgressItem(fileItem, progress) {
|
||||
}
|
||||
|
||||
public onProgressAll(progress) {
|
||||
}
|
||||
|
||||
public onSuccessItem(item, response, status, headers) {
|
||||
}
|
||||
|
||||
public onErrorItem(item, response, status, headers) {
|
||||
}
|
||||
|
||||
public onCancelItem(item, response, status, headers) {
|
||||
}
|
||||
|
||||
public onCompleteItem(item, response, status, headers) {
|
||||
}
|
||||
|
||||
public onCompleteAll() {
|
||||
}
|
||||
|
||||
private _getTotalProgress(value = 0) {
|
||||
if (this.removeAfterUpload) {
|
||||
return value;
|
||||
}
|
||||
|
||||
let notUploaded = this.getNotUploadedItems().length;
|
||||
let uploaded = notUploaded ? this.queue.length - notUploaded : this.queue.length;
|
||||
let ratio = 100 / this.queue.length;
|
||||
let current = value * ratio / 100;
|
||||
|
||||
return Math.round(uploaded * ratio + current);
|
||||
}
|
||||
|
||||
private _getFilters(filters) {
|
||||
if (!filters) {
|
||||
return this.filters;
|
||||
}
|
||||
|
||||
if (Array.isArray(filters)) {
|
||||
return filters;
|
||||
}
|
||||
|
||||
let names = filters.match(/[^\s,]+/g);
|
||||
return this.filters
|
||||
.filter(filter => names.indexOf(filter.name) !== -1);
|
||||
}
|
||||
|
||||
private _render() {
|
||||
// todo: ?
|
||||
}
|
||||
|
||||
private _folderFilter(item) {
|
||||
return !!(item.size || item.type);
|
||||
}
|
||||
|
||||
private _queueLimitFilter() {
|
||||
return this.queue.length < this.queueLimit;
|
||||
}
|
||||
|
||||
private _isValidFile(file, filters, options) {
|
||||
this._failFilterIndex = -1;
|
||||
return !filters.length ? true : filters.every((filter) => {
|
||||
this._failFilterIndex++;
|
||||
return filter.fn.call(this, file, options);
|
||||
});
|
||||
}
|
||||
|
||||
private _isSuccessCode(status) {
|
||||
return (status >= 200 && status < 300) || status === 304;
|
||||
}
|
||||
|
||||
private _transformResponse(response, headers):any {
|
||||
// todo: ?
|
||||
/*var headersGetter = this._headersGetter(headers);
|
||||
forEach($http.defaults.transformResponse, (transformFn) => {
|
||||
response = transformFn(response, headersGetter);
|
||||
});*/
|
||||
return response;
|
||||
}
|
||||
|
||||
private _parseHeaders(headers) {
|
||||
let parsed = {}, key, val, i;
|
||||
|
||||
if (!headers) {
|
||||
return parsed;
|
||||
}
|
||||
|
||||
headers.split('\n').map(line => {
|
||||
i = line.indexOf(':');
|
||||
key = line.slice(0, i).trim().toLowerCase();
|
||||
val = line.slice(i + 1).trim();
|
||||
|
||||
if (key) {
|
||||
parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
|
||||
}
|
||||
});
|
||||
|
||||
return parsed;
|
||||
}
|
||||
|
||||
private _headersGetter(parsedHeaders) {
|
||||
return (name) => {
|
||||
if (name) {
|
||||
return parsedHeaders[name.toLowerCase()] || null;
|
||||
}
|
||||
return parsedHeaders;
|
||||
};
|
||||
}
|
||||
|
||||
_xhrTransport(item:any) {
|
||||
let xhr = item._xhr = new XMLHttpRequest();
|
||||
let form = new FormData();
|
||||
|
||||
this._onBeforeUploadItem(item);
|
||||
|
||||
// todo
|
||||
/*item.formData.map(obj => {
|
||||
obj.map((value, key) => {
|
||||
form.append(key, value);
|
||||
});
|
||||
});*/
|
||||
|
||||
if (typeof item._file.size !== 'number') {
|
||||
throw new TypeError('The file specified is no longer valid');
|
||||
}
|
||||
|
||||
form.append(item.alias, item._file, item.file.name);
|
||||
|
||||
xhr.upload.onprogress = (event) => {
|
||||
let progress = Math.round(event.lengthComputable ? event.loaded * 100 / event.total : 0);
|
||||
this._onProgressItem(item, progress);
|
||||
};
|
||||
|
||||
xhr.onload = () => {
|
||||
let headers = this._parseHeaders(xhr.getAllResponseHeaders());
|
||||
let response = this._transformResponse(xhr.response, headers);
|
||||
let gist = this._isSuccessCode(xhr.status) ? 'Success' : 'Error';
|
||||
let method = '_on' + gist + 'Item';
|
||||
this[method](item, response, xhr.status, headers);
|
||||
this._onCompleteItem(item, response, xhr.status, headers);
|
||||
};
|
||||
|
||||
xhr.onerror = () => {
|
||||
let headers = this._parseHeaders(xhr.getAllResponseHeaders());
|
||||
let response = this._transformResponse(xhr.response, headers);
|
||||
this._onErrorItem(item, response, xhr.status, headers);
|
||||
this._onCompleteItem(item, response, xhr.status, headers);
|
||||
};
|
||||
|
||||
xhr.onabort = () => {
|
||||
let headers = this._parseHeaders(xhr.getAllResponseHeaders());
|
||||
let response = this._transformResponse(xhr.response, headers);
|
||||
this._onCancelItem(item, response, xhr.status, headers);
|
||||
this._onCompleteItem(item, response, xhr.status, headers);
|
||||
};
|
||||
|
||||
xhr.open(item.method, item.url, true);
|
||||
xhr.withCredentials = item.withCredentials;
|
||||
|
||||
// todo
|
||||
/*item.headers.map((value, name) => {
|
||||
xhr.setRequestHeader(name, value);
|
||||
});*/
|
||||
|
||||
xhr.send(form);
|
||||
this._render();
|
||||
}
|
||||
|
||||
private _iframeTransport(item) {
|
||||
// todo: implement it later
|
||||
}
|
||||
|
||||
private _onWhenAddingFileFailed(item, filter, options) {
|
||||
this.onWhenAddingFileFailed(item, filter, options);
|
||||
}
|
||||
|
||||
private _onAfterAddingFile(item) {
|
||||
this.onAfterAddingFile(item);
|
||||
}
|
||||
|
||||
private _onAfterAddingAll(items) {
|
||||
this.onAfterAddingAll(items);
|
||||
}
|
||||
|
||||
private _onBeforeUploadItem(item) {
|
||||
item._onBeforeUpload();
|
||||
this.onBeforeUploadItem(item);
|
||||
}
|
||||
|
||||
private _onProgressItem(item, progress) {
|
||||
let total = this._getTotalProgress(progress);
|
||||
this.progress = total;
|
||||
item._onProgress(progress);
|
||||
this.onProgressItem(item, progress);
|
||||
this.onProgressAll(total);
|
||||
this._render();
|
||||
}
|
||||
|
||||
private _onSuccessItem(item, response, status, headers) {
|
||||
item._onSuccess(response, status, headers);
|
||||
this.onSuccessItem(item, response, status, headers);
|
||||
}
|
||||
|
||||
public _onErrorItem(item, response, status, headers) {
|
||||
item._onError(response, status, headers);
|
||||
this.onErrorItem(item, response, status, headers);
|
||||
}
|
||||
|
||||
private _onCancelItem(item, response, status, headers) {
|
||||
item._onCancel(response, status, headers);
|
||||
this.onCancelItem(item, response, status, headers);
|
||||
}
|
||||
|
||||
public _onCompleteItem(item, response, status, headers) {
|
||||
item._onComplete(response, status, headers);
|
||||
this.onCompleteItem(item, response, status, headers);
|
||||
|
||||
let nextItem = this.getReadyItems()[0];
|
||||
this.isUploading = false;
|
||||
|
||||
if (nextItem) {
|
||||
nextItem.upload();
|
||||
return;
|
||||
}
|
||||
|
||||
this.onCompleteAll();
|
||||
this.progress = this._getTotalProgress();
|
||||
this._render();
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user