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ng2-smooth-scroll

v1.0.1

Published

A pure-javascript library and set of directives to scroll smoothly to an element with easing.

Downloads

465

Readme

Angular2 smooth scroll

base onAngular smooth scroll

A pure-javascript library and set of directives to scroll smoothly to an element with easing. Easing support contributed by Willem Liu with code from Gaëtan Renaudeau.

No jQuery required.

Features

  • Exposes a service that scrolls the window to an element's location
  • Provides two directives that enable smooth scrolling to elements.
  • Clean: No classes are added, no jQuery is required, no CSS files or configuration is needed.
  • Scrolling within a custom container added in 2.0.0

Installation

import { SmoothScrollToDirective, SmoothScrollDirective } from "ng2SmoothScroll";
...
declarations[
	...
	SmoothScrollToDirective,
	SmoothScrollDirective,
	...
]

Bower

Install with bower with:

bower install ng2SmoothScroll

Npm

Install with npm with:

npm install ng2-smooth-scroll

Usage - As a directive

This module provides two directives:

smoothScroll:

Attribute. Scrolls the window to this element, optionally validating the expression inside scroll-if.

Example:


// Basic - The window will scroll to this element's position when compiling this directive
<div smoothScroll></div>

// With options
<div smoothScroll
	duration="800"
	easing="easeInQuint"
	offset="120"
	callbackBefore="aFunction(element)"
	callbackAfter="anotherFunction">
	{{...}}
</div>

// Inside a custom container
<div smoothScroll
	duration="800"
	easing="easeInQuint"
	offset="120"
	callbackBefore="aFunction(element)"
	callbackAfter="anotherFunction"
	containerId="container-id">
	{{...}}
</div>

// With condition
<div smoothScroll
	scrollIf="{{ myExpression }}">
	{{...}}
</div>

// Inside ng-repeat
<div smoothScroll
	scrollIf="{{ $last }}"
	duration="2500">
	{{...}}
</div>

####scrollTo:

Attribute. Scrolls the window to the specified element ID when clicking this element.

Example:


// Basic
<a href="#"
	scrollTo="my-element-3">
	Click me!
</a>

// Custom containers
<a href="#"
	scrollTo="my-element-3"
	containerId="custom-container-id">
	Click me!
</a>

// onClick for non-anchor tags
<div scrollTo="my-element-3"
	containerId="custom-container-id">
	Click me!
</div>

// With options
<button
	scrollTo="elem-id5"
	duration="1800"
	callbackBefore="aFunction(element)"
	callbackAfter="anotherFunction">
	Scroll to next page.
</button>

Options

duration

Type: Integer Default: 800

The duration of the smooth scroll, in miliseconds.

offset

Type: Integer Default: 0

The offset from the top of the page in which the scroll should stop.

easing

type: string default: easeInOutQuart

the easing function to be used for this scroll.

callbackBefore

type: function default: function(element) {}

a callback function to run before the scroll has started. It is passed the element that will be scrolled to.

callbackAfter

type: function default: function(element) {}

a callback function to run after the scroll has completed. It is passed the element that was scrolled to.

containerId

type: string default: null

ID of the scrollable container which the element is a child of.

Easing functions

The available easing functions are:

  • 'easeInQuad'
  • 'easeOutQuad'
  • 'easeInOutQuad'
  • 'easeInCubic'
  • 'easeOutCubic'
  • 'easeInOutCubic'
  • 'easeInQuart'
  • 'easeOutQuart'
  • 'easeInOutQuart'
  • 'easeInQuint'
  • 'easeOutQuint'
  • 'easeInOutQuint'

Cheers.