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@mini-dev/hook

v0.3.0

Published

miniapp framework methods(App, Page, Component) hook

Downloads

2

Readme

微信小程序 Hook

拦截并增强小程序组件(App, Page, Component)的 Option 方法,可以把公共或者兜底的方法(以及配置)进行统一配置,比如为每个页面都添加分享,一次配置,全页面生效。

Usage

开启微信小程序的 npm 支持: https://developers.weixin.qq.com/miniprogram/dev/devtools/npm.html

    npm install @mini-dev/hook

配置钩子

一个示例如下:

app.new.js

const { _App, _Page, _Component } = require('@mini-dev/hook');
_App.use({
    onLaunch(appInstance) {
        return {
            before(options) {
                console.log('App.onLaunch...... before 1', options);
            },
            afterReturn(res, options) {
                console.log('App.onLaunch...... afterReturn 1', options);
            }
        };
    }
});

_Page.use({
    onLoad(pageInstance) {
        return {
            before(query) {
                console.log(this.route, 'Page.onLoad...... before', this.data, query);
            }
        };
    }
});

_Component.use({
    'methods.onTap'(componentInstance) {
        return {
            before(e) {
                wx.showModal({
                    content: 'newComponent.onTap'
                });
            }
        };
    }
});

app.js

import { _App as App } from './app.new';

App({
    onLaunch() {}
});

使用已有的包装方法

如果你的小程序原本就已经包装了 App, Page 等框架方法,那么也可以创建自定义的包装器,以 App 为例:

app.new.js

import OldApp from './App.old';

const { _App } = require('@mini-dev/hook');
const newApp = _App.create(OldApp); // OldApp 是你自定义的App包装函数
newApp.use({
    onLaunch() {
        return {
            before(option) {
                console.log('App.onLaunch...... before 1', this.data, option);
            }
        };
    }
});
export default newApp;

app.js

import { _App as App } from './app.new';

App({
    onLaunch() {}
});

pages/sample/index.js

import { _Page as Page } from './page.new';

Page({
    onLoad() {}
});

替换全局方法

如果你觉得每个文件都要导入很麻烦,可以在 App 入口之前,直接替换掉全局的 App, Page 等方法:

newApp.mount('App');
newPage.mount('Page');
newComponent.mount('Component');

以上调用默认会挂到 globalThis 上,如果想挂到别的对象,可以调用 mount 方法,传入一个对象。

newApp.mount('App', wx);
newPage.mount('Page', wx);
newComponent.mount('Component', wx);

挂载完毕之后,就不用再导入了,可以无感使用。

提示:

由于 App,Page 等方法是框架内置的,不太建议覆盖框架的方法,指不定那天就出问题了。建议使用包装的方式创建新的构造函数。

完整的例子

参见 sample 文件夹

ChangeLogs

0.3.0

  1. 增加 mount 方法;
  2. 补全 share 示例;

0.2.0

  1. 修正示例代码。