159 lines
3.7 KiB
JavaScript
159 lines
3.7 KiB
JavaScript
'use strict';
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let constants = require('./constants');
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let DEVICE_HOST = 'localhost:8082';
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let {keys, objectTypes, propTypes} = constants;
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let typeConverters = {};
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let XMLHttpRequest = window.XMLHttpRequest;
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// Check if XMLHttpRequest has been overridden, and get the native one if that's the case.
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if (XMLHttpRequest.__proto__ != window.XMLHttpRequestEventTarget) {
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let override = XMLHttpRequest;
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delete window.XMLHttpRequest;
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XMLHttpRequest = window.XMLHttpRequest;
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window.XMLHttpRequest = override;
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}
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module.exports = {
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registerTypeConverter,
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getDefaultPath,
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setDefaultPath,
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createRealm,
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callMethod,
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getProperty,
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setProperty,
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beginTransaction,
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cancelTransaction,
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commitTransaction,
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clearTestState,
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};
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function registerTypeConverter(type, handler) {
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typeConverters[type] = handler;
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}
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function getDefaultPath() {
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return sendRequest('get_default_path');
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}
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function setDefaultPath(path) {
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sendRequest('set_default_path', {path});
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}
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function createRealm(args) {
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if (args) {
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args = args.map((arg) => serialize(null, arg));
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}
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return sendRequest('create_realm', {arguments: args});
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}
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function callMethod(realmId, id, name, args) {
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if (args) {
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args = args.map((arg) => serialize(realmId, arg));
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}
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let result = sendRequest('call_method', {realmId, id, name, arguments: args});
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return deserialize(realmId, result);
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}
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function getProperty(realmId, id, name) {
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let result = sendRequest('get_property', {realmId, id, name});
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return deserialize(realmId, result);
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}
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function setProperty(realmId, id, name, value) {
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value = serialize(realmId, value);
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sendRequest('set_property', {realmId, id, name, value});
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}
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function beginTransaction(realmId) {
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sendRequest('begin_transaction', {realmId});
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}
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function cancelTransaction(realmId) {
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sendRequest('cancel_transaction', {realmId});
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}
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function commitTransaction(realmId) {
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sendRequest('commit_transaction', {realmId});
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}
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function clearTestState() {
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sendRequest('clear_test_state');
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}
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function serialize(realmId, value) {
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if (typeof value == 'function') {
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return {type: objectTypes.FUNCTION};
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}
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if (!value || typeof value != 'object') {
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return {value: value};
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}
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let id = value[keys.id];
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if (id) {
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if (value[keys.realm] != realmId) {
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throw new Error('Unable to serialize value from another Realm');
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}
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return {id};
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}
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if (value instanceof Date) {
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return {type: propTypes.DATE, value: value.getTime()};
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}
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if (Array.isArray(value)) {
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let array = value.map((item) => serialize(realmId, item));
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return {value: array};
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}
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let object = {};
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for (let key in value) {
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object[key] = serialize(realmId, value[key]);
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}
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return {value: object};
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}
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function deserialize(realmId, info) {
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let type = info.type;
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let handler = type && typeConverters[type];
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if (handler) {
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return handler(realmId, info);
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}
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let value = info.value;
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if (value && Array.isArray(value)) {
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return value.map((item) => deserialize(realmId, item));
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}
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return value;
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}
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function sendRequest(command, data) {
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let body = JSON.stringify(data || {});
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let request = new XMLHttpRequest();
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let url = 'http://' + DEVICE_HOST + '/' + command;
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request.open('POST', url, false);
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request.send(body);
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if (request.status != 200) {
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throw new Error(request.responseText);
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}
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let response = JSON.parse(request.responseText);
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if (!response || response.error) {
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throw new Error((response && response.error) || 'Invalid response for "' + command + '"');
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}
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return response.result;
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}
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