angular2
Version:
Angular 2 - a web framework for modern web apps
119 lines • 18.7 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") return Reflect.decorate(decorators, target, key, desc);
switch (arguments.length) {
case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
}
};
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 { ReadyStates, RequestMethods, ResponseTypes } 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 'angular2/core';
const JSONP_ERR_NO_CALLBACK = 'JSONP injected script did not invoke callback.';
const JSONP_ERR_WRONG_METHOD = 'JSONP requests must use GET request method.';
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 !== RequestMethods.Get) {
throw makeTypeError(JSONP_ERR_WRONG_METHOD);
}
this.request = req;
this.response = new Observable(responseObserver => {
this.readyState = ReadyStates.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 === ReadyStates.Cancelled)
return;
this.readyState = ReadyStates.Done;
_dom.cleanup(script);
if (!this._finished) {
let responseOptions = new ResponseOptions({ body: JSONP_ERR_NO_CALLBACK, type: ResponseTypes.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 === ReadyStates.Cancelled)
return;
this.readyState = ReadyStates.Done;
_dom.cleanup(script);
let responseOptions = new ResponseOptions({ body: error.message, type: ResponseTypes.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 = ReadyStates.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 === ReadyStates.Cancelled)
return;
this._responseData = data;
}
}
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 {ReadyStates, RequestMethods, ResponseTypes} 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 'angular2/core';\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\nexport abstract class JSONPConnection implements Connection {\n  readyState: ReadyStates;\n  request: Request;\n  response: Observable<Response>;\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 !== RequestMethods.Get) {\n      throw makeTypeError(JSONP_ERR_WRONG_METHOD);\n    }\n    this.request = req;\n    this.response = new Observable(responseObserver => {\n\n      this.readyState = ReadyStates.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 => {\n        if (this.readyState === ReadyStates.Cancelled) return;\n        this.readyState = ReadyStates.Done;\n        _dom.cleanup(script);\n        if (!this._finished) {\n          let responseOptions =\n              new ResponseOptions({body: JSONP_ERR_NO_CALLBACK, type: ResponseTypes.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 => {\n        if (this.readyState === ReadyStates.Cancelled) return;\n        this.readyState = ReadyStates.Done;\n        _dom.cleanup(script);\n        let responseOptions = new ResponseOptions({body: error.message, type: ResponseTypes.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 = ReadyStates.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 === ReadyStates.Cancelled) return;\n    this._responseData = data;\n  }\n}\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"]}