scroll-into-view

scroll-into-view

What

Scrolls an element into view

Also scrolls any scroll-parents so that the element is in view.

Example

Example

How

require it

var scrollIntoView = require('scroll-into-view');

use it

scrollIntoView(someElement);

You can pass settings to control the time, easing, and whether or not a parent is a valid element to scroll, and alignment:

scrollIntoView(someElement, {
    time: 500, // half a second
    ease: function(value){
        return Math.pow(value,2) - value; // Do something weird.
    },
    validTarget: function(target, parentsScrolled){
        // Only scroll the first two elements that don't have the class "dontScroll"
        return parentsScrolled < 2 && target !== window && !target.matches('.dontScroll');
    },
    align:{
        top: 0 to 1, default 0.5 (center)
        left: 0 to 1, default 0.5 (center)
        topOffset: pixels to offset top alignment
        leftOffset: pixels to offset left alignment
    }
});

You can pass a callback that will be called when all scrolling has been completed or canceled.

scrollIntoView(someElement [, settings], function(type){
    // Scrolling done.
    // type will be 'complete' if the scroll completed or 'canceled' if the current scroll was canceled by a new scroll
});

Testing

Testing scrolling is really hard without stuff like webdriver, but what's there works ok for the moment.

The tests will attempt to launch google-chrome. If you don't have chrome, lol just kidding you do.

npm run test

Standalone

If you want to use this module without browserify, you can use scrollIntoView.min.js

<script src="scrollIntoView.min.js"></script>

<script>
    window.scrollIntoView(someElement);
</script>