Page-skeleton-j7 NPM

npm.io

Features

Page Skeleton is a webpack plugin.The purpose of the plugin is to generate the corresponding skeleton screen page according to different route pages in your project, and to pack the skeleton screen page into the corresponding static route page through webpack.

Support multiple loading animations
Preview on mobile
Support multiple routes
Can be customized, and also directly modify the skeleton page source code in the preview page
Almost zero configuration available

Spin	Shine	Chiaroscuro

speed up play

Examples

All examples are in the examples folder.

sale

Installation

Use npm to install this plugin, and you also need to install html-webpack-plugin.

npm install --save-dev page-skeleton-webpack-plugin
npm install --save-dev html-webpack-plugin

Basic Use

Step 1：configration

After installing the plug-in according to the above tutorial, you need to configure the plugin so that the plugin can run normally. The plugin will perform different operations depending on the environment of the node. When NODE_ENV === 'development', the plug-in can perform operations for generating and writing skeleton pages.

const HtmlWebpackPlugin = require('html-webpack-plugin')
const { SkeletonPlugin } = require('page-skeleton-webpack-plugin')
const path = require('path')
const webpackConfig = {
  entry: 'index.js',
  output: {
    path: __dirname + '/dist',
    filename: 'index.bundle.js'
  },
  plugin: [
    new HtmlWebpackPlugin({
       // Your HtmlWebpackPlugin config
    }),
    new SkeletonPlugin({
        pathname: path.resolve(__dirname, `${customPath}`), // the path to store shell file
        staticDir: path.resolve(__dirname, './dist'), // the same as the `output.path`
        routes: ['/', '/search'], // Which routes you want to generate skeleton screen
    })
  ]
}

:notebook_with_decorative_cover:Since the plugin selects different operations based on the process.env.NODE_ENV environment variable, so you need to configurate environment variables in the scripts option in the package.json file as follows:

"scripts": {
  "dev": "cross-env NODE_ENV=development node server.js",
  "build": "rm -rf dist && cross-env NODE_ENV=production webpack --progress --hide-modules"
}

That is, setting NODE_ENV to development in the development environment and NODE_ENV to production in the production environment.

Step 2：Modify template `index.html` of html-webpack-plugin

Add comment  in the root element of you application.

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <!-- shell -->
  </div>
</body>
</html>

Step 3：Operations and write shell

In the development page, use CtrlOrCmd + enter to call out the plugin interactive interface, or enter the toggleBar callout interface in the browser's JavaScript console.

npm.io

Click the button in the interactive interface to preview the skeleton page. This process may take about 20s. After the plugin is ready for the skeleton page, it will automatically open the preview page through the browser, as shown below.

npm.io

Scan the QR code in the preview page to preview the skeleton page on the mobile phone. You can directly edit the source code on the preview page. Write the skeleton page into the shell.html file by clicking the Write button in the upper right corner.

Re-package the application with webpack. When the page is restarted, you can see the application's skeleton structure before getting the data.

Documents

Server Options

Option	Type	Required?	Default	Description
pathname	String	Yes	None	Where the shell.html file shoud be output.
staticDir	String	Yes	None	Path to output static route page
routes	Array	Yes	None	Route in `routes` will generate static route with skeleton screen, please refer to sale
Port	String	No	8989	The port of Page Skeleton server
debug	Boolean	No	`true`	Whether debug mode is enabled or not, when debug is true, the output of the headless Chromium console will be output on the terminal.
minify	false or Object	No	See defaults	The plug-in will uglify the generated shell.html file by default. You can pass html-minifier configuration parameters to mimify shell.html. When configured to false , the generated shell.html file is not uglified and the shell.html file is formatted.
logLevel	String	No	`info`	Which type of messages you want to print in terminal, the optional values are `info`, `warn` and default value is `info`.
quiet	Boolean	No	`false`	Whether to print messages on the terminal, when set to true, no messages are printed.
noInfo	Boolean	No	`false`	When the value is `true`, plugin will not print `info` message.
logTime	Boolean	No	`true`	Print formatted time before the message.

Skeleton Page Options

Option	Type	Required	Default	Description
loading	String	No	spin	Animations of skeleton page, enumerated values:`spin` `chiaroscuro` `shine`
text	Object	No	See defaults	The configuration object can be configured with a color field that determines the color of the text block in the skeleton page. The color value supports hexadecimal, RGB, and so on.
image	Object	No	See defaults	This configuration accepts 3 properties, color, shape, and shapeOpposite. Color and shape are used to determine the color and shape of the image block in the skeleton page. The color value supports hexadecimal and RGB. The shape supports two enumeration values, `circle` and `rect`. The shapeOpposite field takes an array. Each element in the array is a DOM selector. It is used to select the DOM element. The shape of the selected DOM will be opposite to the configured shape. For example, if the configuration is rect, the image block in the shapeOpposite will be In the skeleton page is displayed as a circle shape (circular), how to configure can refer to the default configuration at the end of this section.
button	Object	No	See defaults	This configuration accepts two fields, `color` and `excludes`. Color is used to determine the color of the button block in the skeleton page. excludes accepts an array. The elements in the array are DOM selectors used to select elements. The elements in the array will not be considered button blocks.
svg	Object	No	See defaults	This configuration accepts 3 fields, `color`, `shape`, and `shapeOpposite`. Color and shape are used to determine the color and shape of the svg block in the skeleton page. The color value supports hexadecimal and RGB, and also supports the `transparent` enumeration value. After setting to transparent, the svg block will be a transparent block. Shapes support two enumeration values, `circle` and `rect`. The shapeOpposite field accepts an array. Each element in the array is a DOM selector for selecting the DOM element. The shape of the selected DOM will be the opposite of the configured shape shape. For example, if the configuration is rect then the svg block in the shapeOpposite will be In the skeleton page is displayed as a circle shape (circular).
pseudo	Object	No	See defaults	This configuration accepts two fields, `color` and `shape`. Color is used to determine the color of the skeletal page that is treated as a pseudo-element block, and shape is used to set the shape of the pseudo-element block, accepting two enum values: `circle` and `rect`.
excludes	Array	No	`[]`	If you have an element that does not require skeleton processing, write the element's CSS selector in the array.
remove	Array	No	`[]`	If you have elements that need to be removed from the DOM are configured with a CSS selector that will be removed in DOM tree.
hide	Array	No	`[]`	Don't want to remove it, but hide the element by setting its transparency to 0 and config element's CSS selector in the array.
grayBlock	Array	No	`[]`	The elements in the array are CSS selectors. The selected element will be processed by the plug-in into a color block. The color of the color block is the same as the color of the button block. Internal elements will no longer be specially treated and text will be hidden.
cssUnit	String	No	`rem`	The enum values it accepts are `rem`, `vw`, `vh`, `vmin`, `vmax`.
decimal	Number	No	4	Config the decimal of the css value in the skeleton page (shell.html). The default value is 4.

Puppeteer Options

Options	Type	Required?	Default	Description
device	String	No	`iPhone 6 Plus`	Used to set which mobile device simulator to generate the skeleton page. Refer to puppeteer for configuration.
defer	Number	No	5000	Puppeteer starts the headless Chrome browser. The delay after opening the page is mainly to ensure that the page is fully loaded and the unit is `ms`.
cookie	Array	No	`[]`	Refer to puppeteer.
storagies	Object	No	`{}`	LocalStorage
sessionStoragies	Object	No	`{}`	SessionStorage

Default options

const pluginDefaultConfig = {
  port: '8989',
  text: {
    color: '#EEEEEE'
  },
  image: {
    shape: 'rect', // `rect` | `circle`
    color: '#EFEFEF',
    shapeOpposite: []
  },
  button: {
    color: '#EFEFEF',
    excludes: [] 
  },
  svg: {
    color: '#EFEFEF',
    shape: 'circle', // circle | rect
    shapeOpposite: []
  },
  pseudo: {
    color: '#EFEFEF', // or transparent
    shape: 'circle' // circle | rect
  },
  device: 'iPhone 6 Plus',
  debug: false,
  minify: {
    minifyCSS: { level: 2 },
    removeComments: true,
    removeAttributeQuotes: true,
    removeEmptyAttributes: false
  },
  defer: 5000,
  excludes: [],
  remove: [],
  hide: [],
  grayBlock: [],
  cookies: [],
  storagies: {},
  sessionStoragies: {},
  cssUnit: 'rem',
  decimal: 4,
  logLevel: 'info',
  quiet: false,
  noInfo: false,
  logTime: true
}

Contribution

The project is under active development. If you have any questions, please submit your issues. Please refer to the issue template to submit the issue. If you are fixing a bug in the issues, please discuss it in the issue before submit the PR. If it is a new feature, submit a feature-related issue first before submit the PR.

There are three main development folders in the project: