| | |
| | | /** |
| | | * 跨端双向通讯桥 |
| | | * @author Tevin |
| | | * @tutorial |
| | | * 网页对 App 发起通讯 |
| | | * 1. 【App端】App 注册接收器,用于接收网页通知 |
| | | * 在页面打开之前,App 注入方法 linking = function(paramStr) { <Native Code> } |
| | | * 2. 网页业务中 js 发起通讯 |
| | | * $bridge.invoking('methodName', {key1:'value1'}, function(res) {console.log(res)}); |
| | | * 3. 由 Bridge 转换为调用注入的方法(含callback) |
| | | * window.linking('{method:\'methodName\', param:{key1:\'value1\'}, callback:\'bridge.cb111at1541994536008\'}'); |
| | | * 4. 【App端】App 处理完后直接调用网页上的全局回调,并传递结果完成通讯 |
| | | * bridge.cb101at1541994536008('{key2:\'value2\'}'); |
| | | * App 对网页发起通讯 |
| | | * 1. 网页注册接收器,用于接收 App 通知 |
| | | * window.telling = function(dataStr) { someJs }; |
| | | * 2. 网页业务中注册接收通讯 |
| | | * $bridge.register('methodName', function(res, callback) {}); |
| | | * 3. 【App端】App 调用网页中的全局方法(至少需要在页面完成并延迟至少1秒之后再调用) |
| | | * telling('{method:\'methodName\', param:{key1:\'value1\'}, marker:\'mk222at1541994536008\'}'); |
| | | * 4. 网页完成业务逻辑处理后调用注入的方法,并传递结果完成通讯(含marker、不含callback) |
| | | * window.linking('{method:\'methodName\', param:{key2:\'value2\'}, marker:\'mk222at1541994536008\'}'); |
| | | */ |
| | | |
| | | export class Bridge { |
| | | |
| | | constructor() { |
| | | this._data = { |
| | | count: 100, |
| | | }; |
| | | this._receives = {}; |
| | | this._earlyInvok = []; |
| | | this._init(); |
| | | // 挂载到全局 |
| | | window.bridge = this; |
| | | } |
| | | |
| | | /** |
| | | * 检查 linking 方法 |
| | | * @return {string} |
| | | * @private |
| | | */ |
| | | _checkLinking() { |
| | | // 安卓注入 |
| | | if (window.aisim && window.aisim.linking) { |
| | | return 'android'; |
| | | } |
| | | // 没有注入 |
| | | else { |
| | | return ''; |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 初始化 |
| | | * @private |
| | | */ |
| | | _init(count = 0) { |
| | | // 500 * 20 毫秒后,仍然未注入,视为不工作 |
| | | if (!this._checkLinking() && count < 20) { |
| | | setTimeout(() => { |
| | | this._init(++count); |
| | | }, 500); |
| | | } |
| | | // 开始工作 |
| | | else { |
| | | this._initReceive(); |
| | | // 补发 |
| | | if (this._earlyInvok.length > 0) { |
| | | this._earlyInvok.forEach(invok => { |
| | | const { method, param, callback } = invok; |
| | | this._sendLinking(method, param, callback); |
| | | }); |
| | | } |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 发起一次发送 |
| | | * @param {string} method |
| | | * @param {object} param |
| | | * @param {function} callback - 来自网页业务逻辑的回调 |
| | | * @private |
| | | */ |
| | | _sendLinking(method, param, callback) { |
| | | // 数据检查 |
| | | if (Object.prototype.toString.call(param) !== '[object Object]') { |
| | | console.error('$bridge.invoking 需要接受 JSON 对象!'); |
| | | return; |
| | | } |
| | | // 如果有回调,转存回调 |
| | | const name = 'cb' + this._data.count++ + 'at' + Date.now(); |
| | | this[name] = (res) => { |
| | | if (callback && Object.prototype.toString.call(callback) === '[object Function]') { |
| | | if (res) { |
| | | const data = typeof res === 'string' ? JSON.parse(res) : res; |
| | | callback(data); |
| | | } else { |
| | | callback(); |
| | | } |
| | | } |
| | | delete this[name]; |
| | | }; |
| | | // 发送 |
| | | window.aisim.linking(JSON.stringify({ |
| | | method, |
| | | param, |
| | | callback: 'bridge.' + name, |
| | | })); |
| | | } |
| | | |
| | | /** |
| | | * 向 app 发起通讯 |
| | | * @param {string} method |
| | | * @param {object|function} [param] |
| | | * @param {function} [callback] |
| | | */ |
| | | invoking(method, param, callback) { |
| | | // param 为函数时 |
| | | const trans = param; |
| | | if (trans && Object.prototype.toString.call(trans) === '[object Function]') { |
| | | callback = trans; |
| | | param = {}; |
| | | } else { |
| | | callback = null; |
| | | } |
| | | if (this._checkLinking()) { |
| | | this._sendLinking(method, param, callback); |
| | | } |
| | | // 尚未准备好,挂起 |
| | | else { |
| | | this._earlyInvok.push({ method, param, callback }); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 初始化接收 |
| | | * @private |
| | | */ |
| | | _initReceive() { |
| | | window.telling = (res) => { |
| | | const data = typeof res === 'string' ? JSON.parse(res) : res; |
| | | const { method, param, marker } = data; |
| | | if (this._receives[method]) { |
| | | if (marker) { |
| | | this._receives[method](param, (param2) => { |
| | | this._sendTelling(method, param2 || {}, marker); |
| | | }); |
| | | } else { |
| | | this._receives[method](param); |
| | | } |
| | | } |
| | | }; |
| | | } |
| | | |
| | | /** |
| | | * 发送响应 |
| | | * @param {string} method |
| | | * @param {object} param |
| | | * @param {string} marker |
| | | * @private |
| | | */ |
| | | _sendTelling(method, param, marker) { |
| | | // 数据检查 |
| | | if (Object.prototype.toString.call(param) !== '[object Object]') { |
| | | console.error('$bridge.register 注册的函数需要接受 JSON 对象!'); |
| | | return; |
| | | } |
| | | // 发送 |
| | | window.aisim.linking(JSON.stringify({ |
| | | method, |
| | | param, |
| | | marker, |
| | | })); |
| | | } |
| | | |
| | | /** |
| | | * 注册接收指令,可供 app 查询 |
| | | * @param method |
| | | * @param callback |
| | | */ |
| | | register(method, callback) { |
| | | this._receives[method] = callback; |
| | | } |
| | | |
| | | /** |
| | | * 是否有开始工作 |
| | | */ |
| | | isWorking() { |
| | | const platform = this._checkLinking(); |
| | | return platform === 'android' || platform === 'iOS'; |
| | | } |
| | | |
| | | } |
| | | |
| | | // 全局服务实例 |
| | | export const $bridge = new Bridge(); |