@sanpjs/runtime/dist/Lazy.js

San Pro Runtime

"use strict";
/**
 * @file San Pro 基础组件类 Lazy san版本在3.10以上支持
 * 支持：
 * 1. 组件异步加载，未加载时可显示占位字符
 * 2. 控制组件何时开始加载、延迟指定时间加载
 * 使用:
 * 1. 传入placeholder属性，string类型：
 * <lazy placeholder="占位文字"></lazy>
 * 2. 传入load属性，控制是否加载,true加载，false不加载(默认true)：
 * <lazy load="false"></lazy>
 * 3. 传入list属性，其中每项为lazy加载的组件描述，具体格式如下：
 * lazyList = [
 *  {
 *      name: 'ui-content', // 渲染的组件名称，必选
 *      component: 'content.js', // 组件相对components目录的路径，仅支持js文件 必选
 *      data: {}, // 组件的数据，可选
 *      placeholder: 'content placeholder', // 占位组件的文字，可选
 *      delay: 0 // 延迟加载时间ms，延迟期间仍显示占位文字，可选
 *  },
 *  {...}
 * ];
 * <lazy list="{{lazyList}}"></lazy>
 */
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const san_1 = require("san");
// 异步加载中占位组件
const getPHComponet = (ph = '') => {
    return (0, san_1.defineComponent)({
        template: '<div>{{placeholder}}</div>',
        initData() {
            return {
                placeholder: ph
            };
        }
    });
};
// 动态生成异步组件
const dynamic = (c) => {
    const params = {
        load: () => {
            return new Promise(resolve => {
                setTimeout(async () => {
                    // 必须指定/components/路径，参见https://webpack.js.org/api/module-methods/#import-1
                    const LazyComponent = await Promise.resolve().then(() => __importStar(require(
                    /* webpackChunkName: "lazy-component" */
                    /* webpackMode: "lazy" */
                    '/components/' + c.component.replace(/^\.?\//, ''))));
                    resolve(LazyComponent.default);
                }, c.delay || 0);
            });
        }
    };
    params.placeholder = getPHComponet(c.placeholder);
    return (0, san_1.createComponentLoader)(params);
};
class Lazy extends san_1.Component {
    static template = `
        <div>
            <template s-if="load" s-for="com in list">
                <x-lazy s-is="com.name" data="{{com.data}}"/>
            </template>
            <div s-else>
                {{placeholder}}
            </div>
        </div>`;
    static components = {};
    initData() {
        return {
            load: true,
            placeholder: '',
            list: []
        };
    }
    inited() {
        const list = this.data.get('list');
        list.forEach((com) => {
            Lazy.components[com.name] = dynamic(com);
        });
    }
}
exports.default = Lazy;
//# sourceMappingURL=Lazy.js.map