vue2-scrollspy

Scrollspy, and animated scroll-to, for Vue2, inspired by vue-scrollspy.
See https://ibufu.github.io/vue2-scrollspy/ or Jsfiddle.

Installation

NPM

$ npm install vue2-scrollspy --save

CDN

 <script src="//unpkg.com/vue2-scrollspy/dist/index.js"></script>

Basic Usage

 import Vue from 'vue';
import Scrollspy from 'vue2-scrollspy';
// use default options
Vue.use(Scrollspy);

// or custom options
Vue.use(Scrollspy, options);

 <ul v-scroll-spy-active v-scroll-spy-link>
    <li>
        <a>Menu 1</a>
    </li>
    <li>
        <a>Menu 2</a>
    </li>
</ul>

<div v-scroll-spy>
    <div>
        <h1>Header 1</h1>
        <p>Content</p>
    </div>
    <div>
        <h1>Header 2</h1>
        <p>Content</p>
    </div>
</div>

Configuration

v-scroll-spy

Declares container of sections for elements to scrollspy.

1. v-scroll-spy="{data: 'section'}": add a section data property in scope Vue instance that is binded to the
   section index.

2. v-scroll-spy="{allowNoActive: true}": allow no active sections when scroll position is outside of the scrollspy
   container. Default behavior is too keep active at least one section in any case.

3. v-scroll-spy="{offset: 50}": add an offset for scroll and active events.

4. v-scroll-spy="{time: 200, steps: 30}": set the animation options.

5. $scrollTo(index: int) is provided on scope Vue instance to invoke a scroll to the given section index.

6. v-section-selector: set section which should scrollto

v-scroll-spy-active

Set the active css class on element that match the index of current scrollspy.

1. v-scroll-spy-active="{selector: 'li.menu-item', class: 'custom-active'}": customize elements selection and class
   name to apply. By default, it will use direct children and apply active class.

v-scroll-spy-link

Add click handler on children elements that will scroll to the related section.

1. v-scroll-spy-link="{selector: 'a.menu-link'}": customize elements selection. By default, it will use a to
   select all links.

Bezier animations

Example:

 import scrollSpy, { Easing } from 'vue2-scrollspy';

Vue.use(scrollSpy, {
  easing: Easing.Cubic.In
});

Easing options:
http://tweenjs.github.io/tween.js/examples/03_graphs.html

Note

You should have the same number of children elements for v-scroll-spy, v-scroll-spy-active v-scroll-spy-link for
directives to work properly.

If you need to share multiple scroll-spy in the same page, you can add data-scroll-spy-id="" on each element where a
directive is declared.

If you want to set something else (not body) to scroll container, you could:

 <div class="container" v-scroll-spy>
    <div>
        <h1>Header 1</h1>
        <p>Content</p>
    </div>
    <div>
        <h1>Header 2</h1>
        <p>Content</p>
    </div>
</div>

 .container {
  position: relative;
}

Develop

 npm i && npm run watch 

 cd docs-src && npm i && npm run dev

License

MIT