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moveto

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moveto

A lightweight scroll animation javascript library without any dependency.

  • 1.8.2
  • latest
  • Source
  • npm
  • Socket score

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decreased by-20.39%
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MoveTo npm version Bower version CDNJS version Build Status

A lightweight (only 1kb gzipped) scroll animation javascript library without any dependency.

Demo

Installation

Using npm

$ npm install moveto --save

Using Yarn

$ yarn add moveto

Using Bower

$ bower install moveTo --save

Usage

const moveTo = new MoveTo();

const target = document.getElementById('target');

moveTo.move(target);

// Or register a trigger

const trigger = document.getElementsByClassName('js-trigger')[0];

moveTo.registerTrigger(trigger);

Trigger HTML markup

You can pass all options as data attributes with mt prefix. Option name should be written in kebab case format, for example:

<a href="#target" class="js-trigger" data-mt-duration="300">Trigger</a>

<!-- Or -->

<button type="button" class="js-trigger" data-target="#target" data-mt-duration="300">Trigger</button>

Options

The default options are as follows:

new MoveTo({
  tolerance: 0,
  duration: 800,
  easing: 'easeOutQuart',
  container: window
})
OptionDefaultDesctiption
tolerance0The tolerance of the target to be scrolled, can be negative or positive
duration800Duration of scrolling, in milliseconds
easingeaseOutQuartEase function name
containerwindowThe container been computed and scrolled
callbacknoopThe function to be run after scrolling complete. Target passes as the first argument

API

move(target, options)

Start scroll animation from current position to the anchor point

target

Type: HTMLElement|Number

Target element/position to be scrolled. Target position is the scrolling distance. It must be negative if the upward movement is desired.

options

Type: Object

Pass custom options.

registerTrigger(trigger, callback)

trigger

Type: HTMLElement

This is the trigger element for starting to scroll when on click.

callback

This is the callback function to be run after the scroll complete. This will overwrite the callback option.

addEaseFunction(name, fn)

Adds custom ease function.

name

Type: String

Ease function name.

fn

Type: Function

Ease function. See Easing Equations for more ease function.

Examples

Pass ease function(s) when creating instance
document.addEventListener('DOMContentLoaded', function () {
  const easeFunctions = {
    easeInQuad: function (t, b, c, d) {
      t /= d;
      return c * t * t + b;
    },
    easeOutQuad: function (t, b, c, d) {
      t /= d;
      return -c * t* (t - 2) + b;
    }
  }

  const moveTo = new MoveTo({
    duration: 1000,
    easing: 'easeInQuad'
  }, easeFunctions);

  const trigger = document.getElementsByClassName('js-trigger')[0];

  moveTo.registerTrigger(trigger);
});
Working with callback function
document.addEventListener('DOMContentLoaded', function () {
  const moveTo = new MoveTo({
    duration: 1000,
    callback: function (target) {
      // This will run if there is no overwrite
    }
  });

  const trigger = document.getElementsByClassName('js-trigger')[0];

  moveTo.registerTrigger(trigger, function (target) {
    // Overwrites global callback
  });

  // Or

  moveTo.move(1200, {
    duration: 500,
    callback: function () {
      // Overwrites global callback
    }
  });
});
Unregister a trigger
document.addEventListener('DOMContentLoaded', function () {
  const moveTo = new MoveTo();

  const trigger = document.getElementsByClassName('js-trigger')[0];

  // Register a trigger
  const unregister = moveTo.registerTrigger(trigger, { duration: 500 });

  // Unregister a trigger
  unregister();
});
Back to top
document.addEventListener('DOMContentLoaded', function () {
  const moveTo = new MoveTo();
  const triggers = document.getElementsByClassName('js-back-to-top');

  for (var i = 0; triggers.length < i; i++) {
    moveTo.registerTrigger(triggers[i]);
  }
});
<a href="#" class="js-back-to-top" data-mt-duration="300">Back to top!</a>

Development setup

# To install dev dependencies run:

$ yarn

# Or so if using npm:

$ npm install

# To start the development server run:

$ yarn start

# Or so if using npm:

$ npm run start

# To lint your code run:

$ yarn lint

# Or so if using npm:

$ npm run lint

# To make a full new build run:

$ yarn build

# Or so if using npm:

$ npm run build

# To run tests:

$ yarn test

# Or so if using npm:

$ npm test

Browser support

It should work in the current stable releases of Chrome, Firefox, Safari as well as IE10 and up. To add support for older browsers, consider including polyfills/shims for the requestAnimationFrame.

License

Copyright (c) 2017 Hasan Aydoğdu. See the LICENSE file for license rights and limitations (MIT).

Keywords

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Package last updated on 28 Jun 2019

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