| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| const config = {} |
| |
| const instanceMap = {} |
| |
| export function init (cfg) { |
| config.Document = cfg.Document |
| config.Element = cfg.Element |
| config.Comment = cfg.Comment |
| config.sendTasks = cfg.sendTasks |
| } |
| |
| export function createInstance (id, code, options = {}, data = {}, serviceObjects = {}) { |
| const document = new config.Document(id, options.bundleUrl) |
| const callbacks = {} |
| const instance = { id, data, document, callbacks } |
| |
| let lastCallbackId = 0 |
| document.addCallback = func => { |
| lastCallbackId++ |
| callbacks[lastCallbackId] = func |
| return lastCallbackId |
| } |
| document.handleCallback = (funcId, data, ifLast) => { |
| const callback = callbacks[funcId] |
| if (ifLast) { |
| delete callbacks[funcId] |
| } |
| return callback(data) |
| } |
| instanceMap[id] = instance |
| |
| const globalObjects = Object.assign({ |
| Document: config.Document, |
| Element: config.Element, |
| Comment: config.Comment, |
| sendTasks: tasks => config.sendTasks(id, tasks, -1), |
| options, |
| document |
| }, serviceObjects) |
| |
| const globalKeys = [] |
| const globalValues = [] |
| for (const key in globalObjects) { |
| globalKeys.push(key) |
| globalValues.push(globalObjects[key]) |
| } |
| globalKeys.push(code) |
| |
| const result = new Function(...globalKeys) |
| result(...globalValues) |
| |
| config.sendTasks(id, [{ module: 'dom', method: 'createFinish', args: [] }], -1) |
| |
| return instance |
| } |
| |
| export function destroyInstance (id) { |
| delete instanceMap[id] |
| } |
| |
| export function getRoot (id) { |
| return instanceMap[id].document.body.toJSON() |
| } |
| |
| export function receiveTasks (id, tasks) { |
| const jsHandlers = { |
| fireEvent: (id, ref, type, data, domChanges) => { |
| const { document } = instanceMap[id] |
| const el = document.getRef(ref) |
| return document.fireEvent(el, type, data, domChanges) |
| }, |
| |
| callback: (id, funcId, data, ifLast) => { |
| const { document } = instanceMap[id] |
| return document.handleCallback(funcId, data, ifLast) |
| } |
| } |
| |
| const { document } = instanceMap[id] || {} |
| if (document && Array.isArray(tasks)) { |
| const results = [] |
| tasks.forEach((task) => { |
| const handler = jsHandlers[task.method] |
| const args = [...task.args] |
| if (typeof handler === 'function') { |
| args.unshift(id) |
| results.push(handler(...args)) |
| } |
| }) |
| return results |
| } |
| } |