74 lines
2.7 KiB
JavaScript
74 lines
2.7 KiB
JavaScript
/*TRANSPILED*//*
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Copyright The Closure Library Authors.
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SPDX-License-Identifier: Apache-2.0
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*/
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'use strict';
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goog.provide("goog.messaging.AbstractChannel");
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goog.require("goog.Disposable");
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goog.require("goog.json");
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goog.require("goog.log");
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goog.require("goog.messaging.MessageChannel");
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goog.messaging.AbstractChannel = function() {
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goog.messaging.AbstractChannel.base(this, "constructor");
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this.services_ = {};
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};
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goog.inherits(goog.messaging.AbstractChannel, goog.Disposable);
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goog.messaging.AbstractChannel.prototype.defaultService_;
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goog.messaging.AbstractChannel.prototype.logger = goog.log.getLogger("goog.messaging.AbstractChannel");
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goog.messaging.AbstractChannel.prototype.connect = function(opt_connectCb) {
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if (opt_connectCb) {
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opt_connectCb();
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}
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};
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goog.messaging.AbstractChannel.prototype.isConnected = function() {
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return true;
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};
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goog.messaging.AbstractChannel.prototype.registerService = function(serviceName, callback, opt_objectPayload) {
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this.services_[serviceName] = {callback:callback, objectPayload:!!opt_objectPayload};
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};
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goog.messaging.AbstractChannel.prototype.registerDefaultService = function(callback) {
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this.defaultService_ = callback;
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};
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goog.messaging.AbstractChannel.prototype.send = goog.abstractMethod;
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goog.messaging.AbstractChannel.prototype.deliver = function(serviceName, payload) {
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const service = this.getService(serviceName, payload);
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if (!service) {
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return;
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}
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const decodedPayload = this.decodePayload(serviceName, payload, service.objectPayload);
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if (decodedPayload != null) {
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service.callback(decodedPayload);
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}
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};
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goog.messaging.AbstractChannel.prototype.getService = function(serviceName, payload) {
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const service = this.services_[serviceName];
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if (service) {
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return service;
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} else if (this.defaultService_) {
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const callback = goog.partial(this.defaultService_, serviceName);
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const objectPayload = goog.isObject(payload);
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return {callback:callback, objectPayload:objectPayload};
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}
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goog.log.warning(this.logger, 'Unknown service name "' + serviceName + '"');
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return null;
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};
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goog.messaging.AbstractChannel.prototype.decodePayload = function(serviceName, payload, objectPayload) {
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if (objectPayload && typeof payload === "string") {
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try {
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return JSON.parse(payload);
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} catch (err) {
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goog.log.warning(this.logger, "Expected JSON payload for " + serviceName + ', was "' + payload + '"');
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return null;
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}
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} else if (!objectPayload && typeof payload !== "string") {
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return goog.json.serialize(payload);
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}
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return payload;
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};
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goog.messaging.AbstractChannel.prototype.disposeInternal = function() {
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goog.messaging.AbstractChannel.base(this, "disposeInternal");
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delete this.services_;
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delete this.defaultService_;
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};
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