angular2
Version:
Angular 2 - a web framework for modern web apps
123 lines • 19.6 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { ConnectionBackend } from '../interfaces';
import { ReadyState, RequestMethod, ResponseType } from '../enums';
import { Response } from '../static_response';
import { ResponseOptions } from '../base_response_options';
import { Injectable } from 'angular2/core';
import { BrowserJsonp } from './browser_jsonp';
import { makeTypeError } from 'angular2/src/facade/exceptions';
import { StringWrapper, isPresent } from 'angular2/src/facade/lang';
import { Observable } from 'rxjs/Observable';
const JSONP_ERR_NO_CALLBACK = 'JSONP injected script did not invoke callback.';
const JSONP_ERR_WRONG_METHOD = 'JSONP requests must use GET request method.';
/**
* Abstract base class for an in-flight JSONP request.
*/
export class JSONPConnection {
}
export class JSONPConnection_ extends JSONPConnection {
constructor(req, _dom, baseResponseOptions) {
super();
this._dom = _dom;
this.baseResponseOptions = baseResponseOptions;
this._finished = false;
if (req.method !== RequestMethod.Get) {
throw makeTypeError(JSONP_ERR_WRONG_METHOD);
}
this.request = req;
this.response = new Observable((responseObserver) => {
this.readyState = ReadyState.Loading;
let id = this._id = _dom.nextRequestID();
_dom.exposeConnection(id, this);
// Workaround Dart
// url = url.replace(/=JSONP_CALLBACK(&|$)/, `generated method`);
let callback = _dom.requestCallback(this._id);
let url = req.url;
if (url.indexOf('=JSONP_CALLBACK&') > -1) {
url = StringWrapper.replace(url, '=JSONP_CALLBACK&', `=${callback}&`);
}
else if (url.lastIndexOf('=JSONP_CALLBACK') === url.length - '=JSONP_CALLBACK'.length) {
url = url.substring(0, url.length - '=JSONP_CALLBACK'.length) + `=${callback}`;
}
let script = this._script = _dom.build(url);
let onLoad = (event) => {
if (this.readyState === ReadyState.Cancelled)
return;
this.readyState = ReadyState.Done;
_dom.cleanup(script);
if (!this._finished) {
let responseOptions = new ResponseOptions({ body: JSONP_ERR_NO_CALLBACK, type: ResponseType.Error, url });
if (isPresent(baseResponseOptions)) {
responseOptions = baseResponseOptions.merge(responseOptions);
}
responseObserver.error(new Response(responseOptions));
return;
}
let responseOptions = new ResponseOptions({ body: this._responseData, url });
if (isPresent(this.baseResponseOptions)) {
responseOptions = this.baseResponseOptions.merge(responseOptions);
}
responseObserver.next(new Response(responseOptions));
responseObserver.complete();
};
let onError = (error) => {
if (this.readyState === ReadyState.Cancelled)
return;
this.readyState = ReadyState.Done;
_dom.cleanup(script);
let responseOptions = new ResponseOptions({ body: error.message, type: ResponseType.Error });
if (isPresent(baseResponseOptions)) {
responseOptions = baseResponseOptions.merge(responseOptions);
}
responseObserver.error(new Response(responseOptions));
};
script.addEventListener('load', onLoad);
script.addEventListener('error', onError);
_dom.send(script);
return () => {
this.readyState = ReadyState.Cancelled;
script.removeEventListener('load', onLoad);
script.removeEventListener('error', onError);
if (isPresent(script)) {
this._dom.cleanup(script);
}
};
});
}
finished(data) {
// Don't leak connections
this._finished = true;
this._dom.removeConnection(this._id);
if (this.readyState === ReadyState.Cancelled)
return;
this._responseData = data;
}
}
/**
* A {@link ConnectionBackend} that uses the JSONP strategy of making requests.
*/
export class JSONPBackend extends ConnectionBackend {
}
export let JSONPBackend_ = class extends JSONPBackend {
constructor(_browserJSONP, _baseResponseOptions) {
super();
this._browserJSONP = _browserJSONP;
this._baseResponseOptions = _baseResponseOptions;
}
createConnection(request) {
return new JSONPConnection_(request, this._browserJSONP, this._baseResponseOptions);
}
};
JSONPBackend_ = __decorate([
Injectable(),
__metadata('design:paramtypes', [BrowserJsonp, ResponseOptions])
], JSONPBackend_);
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{ConnectionBackend, Connection} from '../interfaces';\nimport {ReadyState, RequestMethod, ResponseType} from '../enums';\nimport {Request} from '../static_request';\nimport {Response} from '../static_response';\nimport {ResponseOptions, BaseResponseOptions} from '../base_response_options';\nimport {Injectable} from 'angular2/core';\nimport {BrowserJsonp} from './browser_jsonp';\nimport {makeTypeError} from 'angular2/src/facade/exceptions';\nimport {StringWrapper, isPresent} from 'angular2/src/facade/lang';\nimport {Observable} from 'rxjs/Observable';\nimport {Observer} from 'rxjs/Observer';\n\nconst JSONP_ERR_NO_CALLBACK = 'JSONP injected script did not invoke callback.';\nconst JSONP_ERR_WRONG_METHOD = 'JSONP requests must use GET request method.';\n\n/**\n * Abstract base class for an in-flight JSONP request.\n */\nexport abstract class JSONPConnection implements Connection {\n  /**\n   * The {@link ReadyState} of this request.\n   */\n  readyState: ReadyState;\n\n  /**\n   * The outgoing HTTP request.\n   */\n  request: Request;\n\n  /**\n   * An observable that completes with the response, when the request is finished.\n   */\n  response: Observable<Response>;\n\n  /**\n   * Callback called when the JSONP request completes, to notify the application\n   * of the new data.\n   */\n  abstract finished(data?: any): void;\n}\n\nexport class JSONPConnection_ extends JSONPConnection {\n  private _id: string;\n  private _script: Element;\n  private _responseData: any;\n  private _finished: boolean = false;\n\n  constructor(req: Request, private _dom: BrowserJsonp,\n              private baseResponseOptions?: ResponseOptions) {\n    super();\n    if (req.method !== RequestMethod.Get) {\n      throw makeTypeError(JSONP_ERR_WRONG_METHOD);\n    }\n    this.request = req;\n    this.response = new Observable((responseObserver: Observer<Response>) => {\n\n      this.readyState = ReadyState.Loading;\n      let id = this._id = _dom.nextRequestID();\n\n      _dom.exposeConnection(id, this);\n\n      // Workaround Dart\n      // url = url.replace(/=JSONP_CALLBACK(&|$)/, `generated method`);\n      let callback = _dom.requestCallback(this._id);\n      let url: string = req.url;\n      if (url.indexOf('=JSONP_CALLBACK&') > -1) {\n        url = StringWrapper.replace(url, '=JSONP_CALLBACK&', `=${callback}&`);\n      } else if (url.lastIndexOf('=JSONP_CALLBACK') === url.length - '=JSONP_CALLBACK'.length) {\n        url = url.substring(0, url.length - '=JSONP_CALLBACK'.length) + `=${callback}`;\n      }\n\n      let script = this._script = _dom.build(url);\n\n      let onLoad = (event: Event) => {\n        if (this.readyState === ReadyState.Cancelled) return;\n        this.readyState = ReadyState.Done;\n        _dom.cleanup(script);\n        if (!this._finished) {\n          let responseOptions =\n              new ResponseOptions({body: JSONP_ERR_NO_CALLBACK, type: ResponseType.Error, url});\n          if (isPresent(baseResponseOptions)) {\n            responseOptions = baseResponseOptions.merge(responseOptions);\n          }\n          responseObserver.error(new Response(responseOptions));\n          return;\n        }\n\n        let responseOptions = new ResponseOptions({body: this._responseData, url});\n        if (isPresent(this.baseResponseOptions)) {\n          responseOptions = this.baseResponseOptions.merge(responseOptions);\n        }\n\n        responseObserver.next(new Response(responseOptions));\n        responseObserver.complete();\n      };\n\n      let onError = (error: Error) => {\n        if (this.readyState === ReadyState.Cancelled) return;\n        this.readyState = ReadyState.Done;\n        _dom.cleanup(script);\n        let responseOptions = new ResponseOptions({body: error.message, type: ResponseType.Error});\n        if (isPresent(baseResponseOptions)) {\n          responseOptions = baseResponseOptions.merge(responseOptions);\n        }\n        responseObserver.error(new Response(responseOptions));\n      };\n\n      script.addEventListener('load', onLoad);\n      script.addEventListener('error', onError);\n\n      _dom.send(script);\n\n      return () => {\n        this.readyState = ReadyState.Cancelled;\n        script.removeEventListener('load', onLoad);\n        script.removeEventListener('error', onError);\n        if (isPresent(script)) {\n          this._dom.cleanup(script);\n        }\n\n      };\n    });\n  }\n\n  finished(data?: any) {\n    // Don't leak connections\n    this._finished = true;\n    this._dom.removeConnection(this._id);\n    if (this.readyState === ReadyState.Cancelled) return;\n    this._responseData = data;\n  }\n}\n\n/**\n * A {@link ConnectionBackend} that uses the JSONP strategy of making requests.\n */\nexport abstract class JSONPBackend extends ConnectionBackend {}\n\n@Injectable()\nexport class JSONPBackend_ extends JSONPBackend {\n  constructor(private _browserJSONP: BrowserJsonp, private _baseResponseOptions: ResponseOptions) {\n    super();\n  }\n\n  createConnection(request: Request): JSONPConnection {\n    return new JSONPConnection_(request, this._browserJSONP, this._baseResponseOptions);\n  }\n}\n"]}