drowjs

Drow

Simple Web Component Library for creating custom HTML Components.

Updates

Converted object references to Drow and drow internal elements instead of DrowJS

Setup

Include the drow.js in an html file:

<script src="drow.js"></script>

Or as an NPM Module

import Drow from 'drow';

Define a Drow Component

Define a Drow Object to setup a componet:

Component needs to have a

• name : name of HTML Custom Component
  
• props : properties set on the Custom Component
  
• template : standard html template
  
• init : function() - optional
  
• watch : function(obj) - optional
  
• templating : You can now use handlebars/mustache style variables in templates there are applied by prop name Ex: {{prop1}}

HTML

<my-comp prop1="AAA" prop2="BBB"> </my-comp>

JavaScript

var config = {
    "name" : "my-comp",
    "props": ['prop1','prop2'],
    "template": `<div>
                  <div>Every time you click on timestamp it will update the time.</div>
            <b>Click for the timestamp</b><div>{{prop1}}</div>
            </div>`,
    "init" : function(config) {
        let prop1 = this.getProp('prop1') ? this.getAttribute('prop1') : "";
        //in the init this.getComp() is used to obtain the component

      this.getComp().addEventListener('click', e => {
			this.getComp().querySelector("b").innerHTML = new Date();
		});
    },
    watch : function(attribute) {
        if (attribute.name == 'name') { //in the watch this.comp is a reference to this component
            attribute.comp.querySelector('b').innerHTML = `Hello, ${attribute.newValue}`;
        }
    }
}

DrowJS.register(config);

Outline

//Define Component
<my-comp title="Great Name" link="https://something.com">
  <!-- 
    Web Components must be in primary-secondary name separated by dash ie my-comp 
    Componets and other HTML elements in the comp will be automatically added to the {{bind}} of the components template.
  -->
</my-comp>

//Template for Component
template = `<div>
  <div>Title: {{title}}</div>
  <div>Link: {{link}}</div>
</div>`

//Component Config
var myComp = {
    "name" : "my-comp",
    "props": ['title','link'],
    "template": template,
    "init" : function(config) {       //optional init    
    },
    watch : function(attribute) {    //optional watch -- hooks/useEffect
    }
}
//Register Component
DrowJS.register(myComp); //using the config created earlier

Examples

Basic Example:

Example 1

Setup from npm

First install dependencies:

npm install

Run commands:

npm run server

Credits

Author johnfacey.dev

Twitter twitter.com/johnfacey