MHSarmadi
Reputation: 112
Scroll into view in JS
I have an HTML code, having a big table. and I need to scroll to access all of the rows.
And I made the thead as a sticky tag. because I need this tag everywhere. (position: sticky; top: 0;)
But, when I want to use firstCell.scrollIntoView(); in JavaScript, firstCell will be covered by thead!
You can see the sample in this link
In this example, the Target is the first cell in the Table, and by clicking the button, it has to scroll into view of the Target
but Target will be at the backside of thead
how can I fix this problem?
Upvotes: 2
Views: 4358
Answers (3)
Marian Klösler
Reputation: 670
I've run into the same issue but found an article solving this issue with CSS. In my case, this was much easier to implement and handle.
If you append scroll-margin-top to a tag it will add the margin to that element automatically when scrollIntoView() is called.
#target{
scroll-margin-top: 1rem;
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<button onclick="document.getElementById('target').scrollIntoView();" style="position: fixed; top: 5px; right: 5px;">ScrollIntoView (for Target)</button>
<table>
<thead>
<tr style='position: sticky; top: 0;'>
<td>XYZ</td>
<td>XYZ</td>
<td>XYZ</td>
<td>XYZ</td>
<td>XYZ</td>
</tr>
</thead>
<tbody>
<tr>
<td id=target style="color: red;">Target</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
</tbody>
</table>
</body>
</html>Upvotes: 0
Christian Vincenzo Traina
Reputation: 10424
Since the thead has a sticky position, its size doesn't get taken into account when calculating the available space.
A workaround would be using scrollIntoView({ behavior: 'smooth', block: 'end' }) in place of scrollIntoView().
This only works because the height of the thead is equal to the height of the tr, so if it aligns the scroll to the bottom, it's not covered anymore.
Upvotes: 3
CertainPerformance
Reputation: 370859
After scrolling into view, check if the bottom of the head overlaps the top of the target by taking their getBoundingClientRects. If so, call window.scrollBy by the difference.
const headTr = document.querySelector('thead tr');
document.querySelector('button').addEventListener('click', () => {
const target = document.getElementById('target');
target.scrollIntoView();
const diff = target.getBoundingClientRect().top - target.getBoundingClientRect().bottom;
if (diff < 0) {
window.scrollBy(0, diff);
}
});<button style="position: fixed; top: 5px; right: 5px;">ScrollIntoView (for Target)</button>
<table>
<thead>
<tr style='position: sticky; top: 0;'>
<td>XYZ</td>
<td>XYZ</td>
<td>XYZ</td>
<td>XYZ</td>
<td>XYZ</td>
</tr>
</thead>
<tbody>
<tr>
<td id=target style="color: red;">Target</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
<tr>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
<td>abc</td>
</tr>
</tr>
</tbody>
</table>Upvotes: 2
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