express-low-layout

A template layout system for Express

0.1.5
latest
Source
npm

Version published: 6 years ago

Maintainers: 1

Created: 6 years ago

Source

express-low-layout

Low-layout is a layout system based on Mustache and Express.

Instalation

$ npm install express-low-layout

Usage

const layout = require('low-layout')
app.use(layout)

Exemple:

install express and express-low-layout

$ npm install --save express 
$ npm install --save express-low-layout

index.js

Create a simple express app with two route: /home and /test

var express = require('express')
var layout = require('express-low-layout')
var app = express()

//set the views directory
app.set('view', './views')
app.use(layout)

//home route
app.get('/home', function (req, res) {
  //load the layout from the file home.html
  req.layout.loadTemplate('home.html')

  //send the layout html
  req.layout.render().then((html) => {
    res.send(html)
  })
})

//test route
app.get('/test', function (req, res) {
  //load the layout from the file test.html
  req.layout.loadTemplate('test.html')

  //Set the title of the block head
  req.layout.getBlock('head').data.title = 'Test page'

  //send the layout html
  req.layout.render().then((html) => {
    res.send(html)
  })
})

app.get('*', function (req, res) {
  res.redirect('/home')
})

app.listen(3000, function () {
  console.log('Example app listening on port 3000!')
})

/views/page/default.html

The template for the page For the template syntax read the mustache js documentation

<template>
    <!doctype html>
    <html lang="en">
    <!-- block head -->
    {{{blocks.head}}}
    <body>

    <header>
        <nav>
            <ul>
                <li>
                    <a href="/home">Home</a>
                </li>
                <li>
                    <a href="/test">Test</a>
                </li>
            </ul>
        </nav>
    </header>
    <main role="main">
        <!-- block content -->
        {{{blocks.content}}}
    </main>

    <footer>
        <p>footer</p>
    </footer>
    </body>
    </html>
</template>
<script>
  //Require the block dependency
  var Block = require('low-layout/block')

  //Block for the page
  class Default extends Block {
    init () {
      //set the name of the block
      //the name of the block can be define in this way or for other block it can be defined in the config
      this.name = 'page'

      //Add the head block
      this.addBlock({name: 'head', template: 'page/head.html'})

      //content block it just a block container
      //to use block with no html temple use type
      this.addBlock({name: 'content', type: 'container'})
    }

    beforeRender () {
      //Add a css in the head block
      this.layout.getBlock('head').addCss('https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css')
    }
  }

  module.exports = Default
</script>

/views/page/head.html

template for the head block define in the file views/page/default.html

<template>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
        <meta name="description" content="">
        <meta name="author" content="">

        <title>{{title}}</title>
        {{#css}}
        <link rel="stylesheet" href="{{{.}}}">
        {{/css}}

        {{#js}}
        <script src="{{{.}}}"></script>
        {{/js}}
    </head>
</template>
<script>
  //requite the block object
  var Block = require('low-layout/block')

  //A Test class for the test page
  class Head extends Block {

    init () {
      this.data.css = []
      this.data.js = []
    }

    addCss (cssFiles) {
      if (Array.isArray(cssFiles)) {
        for (var key in cssFiles) {
          this.data.css.push(cssFiles[key])
        }
      } else if (typeof cssFiles === 'string') {
        this.data.css.push(cssFiles)
      } else {
        throw Error('Invalid addCss argument')
      }
    }

    addJs (jsFiles) {
      if (Array.isArray(jsFiles)) {
        for (var key in jsFiles) {
          this.data.js.push(jsFiles[key])
        }
      } else if (typeof jsFiles === 'string') {
        this.data.js.push(jsFiles)
      } else {
        throw Error('Invalid addJs argument')
      }
    }
  }

  module.exports = Head
</script>

/views/home.html

The template for the /home route

<template>
    <div>
        <h1>Home page</h1>
    </div>
</template>
<script>
  //requite the block object
  var Block = require('low-layout/block')

  //A Block class for the home page
  class Home extends Block {
    init () {
      this.page ='page/default.html'
        //name of the parent block of this block
        //here the block content, it is defined in the file page/default.html
      this.parent = 'content'

    }

    beforeRender() {
      //set the name of the head block
      this.layout.getBlock('head').data.title = 'Home page'
    }
  }

  module.exports = Home
</script>

/views/test.html

The template for the /test route

<template>
    <div class="test">
        <h1>Test</h1>
    </div>
</template>
<script>
  //requite the block object
  var Block = require('low-layout/block')

  //A Test class for the test page
  class Test extends Block {
    init () {
      this.page ='page/default.html'
      //name of the parent block of this block
      //here the block content, it is defined in the file page/default.html
      this.parent= 'content'
    }
  }

  module.exports = Test
</script>

Run:

$ node index.js

FAQs

What is express-low-layout?

Is express-low-layout well maintained?

Package last updated on 06 Oct 2018

Did you know?

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install