Shine.js - A library for pretty shadows

Shine.js is a library for pretty shadows

Features

• Dynamic light positions
• Customizable shadows
• No library dependencies, AMD compatible
• Uses text or box shadows based on content
• Works in browsers that support textShadow or boxShadow and auto-prefixes if necessary

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Source: bigspaceship.github.io

1. INCLUDE JS FILES

<script src="path/to/shine.min.js"></script>

2. HTML

<h1 id="headline" class="demo-text">Shine Mouse-Follow Demo</h1>

3. JAVASCRIPT

var shine = new Shine(document.getElementById('headline'));

window.addEventListener('mousemove', function(event) {
  shine.light.position.x = event.clientX;
  shine.light.position.y = event.clientY;
  shine.draw();
}, false);

4. CONFIGURATION

Each shine instance has a property pointing to an instance of shinejs.Config. One config can be shared amongst multiple shine instances.

When a config value changes, shine.draw() needs to be called to re-draw with the new settings.

Change the shadow of a shine instance:

shine.config.opacity = 0.1;
shine.config.blur = 0.2;
shine.draw(); // make sure to re-draw

Create a shared shinejs.Config instance:

// all parameters are optional and can be changed later
var config = new shinejs.Config({
  numSteps: 4,
  opacity: 0.2,
  shadowRGB: new shinejs.Color(255, 0, 0)
});

// pass the config in the constructor
var shineA = new Shine(document.getElementById('my-shine-object-a'), config);
var shineB = new Shine(document.getElementById('my-shine-object-b'), config);

// or assign it to an instance later
var shineC = new Shine(document.getElementById('my-shine-object-c'));
shineC.config = config;
shineC.draw(); // make sure to re-draw

5. SHINE API

Note: Shine is also mapped to shinejs.Shine. Use the long version if Shine is already defined.

Shine(domElement, optConfig, optClassPrefix, optShadowProperty)

The Shine constructor. Instantiate as new Shine(...) to create a new instance.

Shine.prototype.draw()

Draws all shadows based on the current light position. Call this method whenever a shine parameter is changed.

Shine.prototype.destroy()

Releases all resources and removes event listeners. Destroyed instance can't be reused and must be discarded.

Shine.prototype.updateContent(optText)

Re-initializes all shadows. Use this when you want to change the text or the domElement's contents have changed.

Shine.prototype.enableAutoUpdates()

Adds DOM event listeners to automatically update all properties.

Shine.prototype.disableAutoUpdates()

Removes DOM event listeners to automatically update all properties.

Shine Properties

6. SHINEJS.CONFIG API

shinejs.Config(optSettings)

The shine config constructor. Pass an optional settings object from which to read values.

shinejs.Config Properties

7. SHINEJS.LIGHT API

shinejs.Light(optPosition)

The light constructor. Pass an optional position to apply by default.

shinejs.Light Properties

8. SHINEJS.POINT API

shinejs.Point(x, y)

A 2D point class.

shinejs.Point Properties

shinejs.Point.prototype.delta(p)

Returns a new instance of shinejs.Point with the x- and y-distance between this instance and the point p.