/**
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* BridgeCenterBase - 跨端通讯，通知接收基类
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* @author Tevin
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*/
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import Taro from '@tarojs/taro';
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import { $bridge } from '@components/common/Bridge';
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import { Fetcher } from '@components/bases/Fetcher';
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export class BridgeCenterBase {
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constructor(tellings) {
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this._init(tellings);
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}
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_init(tellings) {
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tellings.forEach(method => {
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const name = Fetcher.prototype.stringToCamel(method);
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// BridgeCenter 已注册，但没有定义接收器的协议，提示
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if (typeof this[name] === 'undefined') {
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console.warn('BridgeTelling：协议【' + method + '】未发现对应接收器！');
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}
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// BridgeCenter 已注册已定义接收器的协议，注册接收器
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else {
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$bridge.register(method, (res, callback) => {
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this[name](method, res, callback);
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});
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}
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});
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}
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/**
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* 获取当前页面
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* @return {Taro.Page}
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*/
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$getCurrentPage() {
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const pages = Taro.getCurrentPages();
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return pages[pages.length - 1];
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}
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/**
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* 获取当前页面路径
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* @return {String}
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*/
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$getCurrentPagePath() {
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return this.$getCurrentPage().path.split('?')[0];
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}
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/**
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* 判断地址是否为当前页面
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* @param {String} url
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* @return {Taro.Page|null}
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*/
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$isCurrentPage(url) {
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const pages = Taro.getCurrentPages();
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const curPage = pages[pages.length - 1];
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if (curPage.path.split('?')[0] === url.split('?')[0]) {
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return curPage;
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} else {
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return null;
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}
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}
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/**
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* 判断当前页面是否在列表中
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* @param {Array} allows=[]
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* @return {boolean}
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*/
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$isCurPageInside(allows = []) {
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const url = this.$getCurrentPagePath();
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return allows.indexOf(url) >= 0;
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}
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_waitCurPage(url, callback) {
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let curPage = this.$isCurrentPage(url);
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if (curPage) {
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callback(curPage);
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} else {
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setTimeout(() => {
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this._waitCurPage(url, callback);
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}, 100);
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}
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}
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/**
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* 打开指定页面
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* @param {String} url
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* @param {Function} callback
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*/
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$openPage(url, callback) {
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const curPage = this.$isCurrentPage(url);
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// 需打开的是当前页面
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if (curPage) {
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callback(curPage);
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} else {
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Taro.navigateTo({ url });
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setTimeout(() => {
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this._waitCurPage(url, callback);
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}, 100);
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}
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}
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/**
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* 当前页下发通讯
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* @param {String} method
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* @param {Object} res
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* @param {Function} [callback]
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*/
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$curPageBridge(method, res, callback) {
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this.$pageBridge(this.$getCurrentPage(), method, res, callback);
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}
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/**
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* 对某个页面下发通知
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* @param {Taro.Page} page
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* @param {String} method
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* @param {Object} res
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* @param {Function} [callback]
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*/
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$pageBridge(page, method, res, callback) {
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if (!page.$component || !page.$component.$onBridge) {
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return;
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}
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try {
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res = typeof res === 'string' ? JSON.parse(res) : res;
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} catch (e) {}
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page.$component.$onBridge(method, res, callback);
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}
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}
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