zorigami/dist/main_thread_api/dispatch_message_from_worker.js

a package for managing web workers

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var _a;
var worker_constants_1 = require("../worker_constants");
var provide_worker_instance_1 = require("../main_thread_api/provide_worker_instance");
var provide_response_callbacks_1 = require("../shared/provide_response_callbacks");
/* need to import ResponseMessage type */
/*
    what to do here
    - type default_handler so that it is of the handler type
    - make a dictionary type with an indexable interface and readonly properties
    so that we can avoid using immutable.
    -
*/
var default_handler = function (event, respond) {
    throw new Error(JSON.stringify(event));
};
var default_main_sub_to_worker_api = (_a = {},
    _a[worker_constants_1.RESPONSE_MESSAGE] = function (event) {
        provide_response_callbacks_1.default.getResponseCallback(event.data.callback_guid)(event);
        provide_response_callbacks_1.default.removeResponseCallback(event.data.callback_guid);
    },
    _a[worker_constants_1.EXPOSE_WORKER_API] = function (event) {
        /* gets called when the worker is exposing it's api to the main thread */
        var worker_name = event.data.worker_name;
        var api_config = event.data.api_config;
        provide_worker_instance_1.default.storeWorkerApi(worker_name, api_config);
        provide_worker_instance_1.default.storeWorkerPortAPI(worker_name, api_config);
        /* override respond here because the worker name will not be stored
        yet when it is generated in dispatch_message_from_worker */
        var worker_interfaces = provide_worker_instance_1.default.getWorkerInterface(worker_name);
        if (worker_interfaces) {
            var respond = worker_interfaces.createResponse(event);
            respond({ event: 'done storing worker api on main thread' });
        }
        else {
            var message = 'could not find response function for ';
            throw new Error(message + "::" + worker_name);
        }
    },
    _a);
exports.dispatch_message_from_worker = function (event) {
    var worker_name = event.data.worker_name;
    var worker_interfaces = provide_worker_instance_1.default.getWorkerInterface(worker_name);
    if (worker_interfaces) {
        var respond = worker_interfaces.createResponse(event);
        (default_main_sub_to_worker_api[event.data.type] || default_handler)(event, respond);
    }
};
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