angular2
Version:
Angular 2 - a web framework for modern web apps
87 lines • 4.13 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 { Injectable } from 'angular2/src/core/di';
import { ListWrapper, Map } from 'angular2/src/facade/collection';
import { Serializer } from "angular2/src/web_workers/shared/serializer";
import { isPresent, FunctionWrapper } from "angular2/src/facade/lang";
import { MessageBus } from "angular2/src/web_workers/shared/message_bus";
import { PromiseWrapper, ObservableWrapper } from 'angular2/src/facade/async';
export class ServiceMessageBrokerFactory {
}
export let ServiceMessageBrokerFactory_ = class extends ServiceMessageBrokerFactory {
constructor(_messageBus, _serializer) {
super();
this._messageBus = _messageBus;
this._serializer = _serializer;
}
createMessageBroker(channel, runInZone = true) {
this._messageBus.initChannel(channel, runInZone);
return new ServiceMessageBroker_(this._messageBus, this._serializer, channel);
}
};
ServiceMessageBrokerFactory_ = __decorate([
Injectable(),
__metadata('design:paramtypes', [MessageBus, Serializer])
], ServiceMessageBrokerFactory_);
export class ServiceMessageBroker {
}
/**
* Helper class for UIComponents that allows components to register methods.
* If a registered method message is received from the broker on the worker,
* the UIMessageBroker deserializes its arguments and calls the registered method.
* If that method returns a promise, the UIMessageBroker returns the result to the worker.
*/
export class ServiceMessageBroker_ extends ServiceMessageBroker {
constructor(messageBus, _serializer, channel) {
super();
this._serializer = _serializer;
this.channel = channel;
this._methods = new Map();
this._sink = messageBus.to(channel);
var source = messageBus.from(channel);
ObservableWrapper.subscribe(source, (message) => this._handleMessage(message));
}
registerMethod(methodName, signature, method, returnType) {
this._methods.set(methodName, (message) => {
var serializedArgs = message.args;
var deserializedArgs = ListWrapper.createFixedSize(signature.length);
for (var i = 0; i < signature.length; i++) {
var serializedArg = serializedArgs[i];
deserializedArgs[i] = this._serializer.deserialize(serializedArg, signature[i]);
}
var promise = FunctionWrapper.apply(method, deserializedArgs);
if (isPresent(returnType) && isPresent(promise)) {
this._wrapWebWorkerPromise(message.id, promise, returnType);
}
});
}
_handleMessage(map) {
var message = new ReceivedMessage(map);
if (this._methods.has(message.method)) {
this._methods.get(message.method)(message);
}
}
_wrapWebWorkerPromise(id, promise, type) {
PromiseWrapper.then(promise, (result) => {
ObservableWrapper.callNext(this._sink, { 'type': 'result', 'value': this._serializer.serialize(result, type), 'id': id });
});
}
}
export class ReceivedMessage {
constructor(data) {
this.method = data['method'];
this.args = data['args'];
this.id = data['id'];
this.type = data['type'];
}
}
//# sourceMappingURL=service_message_broker.js.map