primer-tooltips

Primer Tooltips

Add tooltips built entirely in CSS to nearly any element. Just add a few classes and an aria-label attribute.

This repository is a module of the full primer repository.

Install

This repository is distributed with npm. After installing npm, you can install primer-tooltips with this command.

$ npm install --save primer-tooltips

Usage

The source files included are written in Sass (scss) You can simply point your sass include-path at your node_modules directory and import it like this.

@import "primer-tooltips/index.scss";

You can also import specific portions of the module by importing those partials from the /lib/ folder. Make sure you import any requirements along with the modules.

Build

For a compiled css version of this module, a npm script is included that will output a css version to build/build.css The built css file is also included in the npm package.

$ npm run build

Documentation

Add tooltips built entirely in CSS to nearly any element.

{:toc}

Implementation and accessibility

Tooltips as a UI pattern should be our last resort for conveying information because it is hidden by default and often with zero or little visual indicator of its existence.

Before adding a tooltip, please consider: Is this information essential and necessary* Can the UI be made clearer? Can the information be shown on the page by default?

Attention: we use aria-label for tooltip contents, because it is crucial that they are accessible to screen reader users. However, aria-label replaces the text content of an element in screen readers, so only use .tooltipped on elements with no existing text content, or consider using title for supplemental information.

Note: Tooltip classes will conflict with Octicon styles, and as such, must be applied to the parent element instead of the icon.

Tooltip direction

Specify the direction of a tooltip with north, south, east, and west directions:

• .tooltipped-n
• .tooltipped-ne
• .tooltipped-e
• .tooltipped-se
• .tooltipped-s
• .tooltipped-sw
• .tooltipped-w
• .tooltipped-nw

<span class="tooltipped tooltipped-n border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the North side.">
  Tooltip North
</span>
<span class="tooltipped tooltipped-ne border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the North East side.">
  Tooltip North East
</span>
<span class="tooltipped tooltipped-e border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the East side.">
  Tooltip East
</span>
<span class="tooltipped tooltipped-se border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the South East side.">
  Tooltip South East
</span>
<span class="tooltipped tooltipped-s border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the South side.">
  Tooltip South
</span>
<span class="tooltipped tooltipped-sw border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the South West side.">
  Tooltip South West
</span>
<span class="tooltipped tooltipped-w border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the West side.">
  Tooltip West
</span>
<span class="tooltipped tooltipped-nw border p-2 mb-2 mr-2 float-left" aria-label="This is the tooltip on the North West side.">
  Tooltip North West
</span>

Tooltip alignment

Align tooltips to the left or right of an element, combined with a directional class to specify north or south.

<span class="tooltipped tooltipped-ne tooltipped-align-left-1 border p-2 mb-2 mr-2 float-left" aria-label="Tooltipped NE and aligned left.">
  Tooltip North East align left 1
</span>
<span class="tooltipped tooltipped-ne tooltipped-align-left-2 border p-2 mb-2 mr-2 float-left" aria-label="Tooltipped NE and aligned left.">
  Tooltip North East align left 2
</span>
<span class="tooltipped tooltipped-se tooltipped-align-left-1 border p-2 mb-2 mr-2 float-left" aria-label="Tooltipped SW and aigned left.">
  Tooltip South East align left 1
</span>
<span class="tooltipped tooltipped-se tooltipped-align-left-2 border p-2 mb-2 mr-2 float-left" aria-label="Tooltipped SW and aigned left.">
  Tooltip South East align left 2
</span>
<span class="tooltipped tooltipped-nw tooltipped-align-right-1 border p-2 mb-2 mr-2 float-left" aria-label="Tooltipped NW and aligned right.">
  Tooltip North West align right 1
</span>
<span class="tooltipped tooltipped-nw tooltipped-align-right-2 border p-2 mb-2 mr-2 float-left" aria-label="Tooltipped NW and aligned right.">
  Tooltip North West align right 2
</span>
<span class="tooltipped tooltipped-sw tooltipped-align-right-1 border p-2 mb-2 mr-2 float-left" aria-label="Tooltipped SE and aligned right.">
  Tooltip South West align right 1
</span>
<span class="tooltipped tooltipped-sw tooltipped-align-right-2 border p-2 mb-2 mr-2 float-left" aria-label="Tooltipped SE and aligned right.">
  Tooltip South West align right 2
</span>

Tooltips with multiple lines

Use .tooltipped-multiline when you have long content. This style has some limitations: you cannot pre-format the text with newlines, and tooltips are limited to a max-width of 250px.

<span class="tooltipped tooltipped-multiline tooltipped-n border p-2" aria-label="This is the tooltip with multiple lines. This is the tooltip with multiple lines.">
  Tooltip with multiple lines
</span>

Tooltips No Delay

By default the tooltips have a slight delay before appearing. This is to keep multiple tooltips in the UI from being distracting. There is a modifier class you can use to override this. .tooltipped-no-delay

<span class="tooltipped tooltipped-n tooltipped-no-delay border p-2" aria-label="This is the tooltip on the no delay side.">
  Tooltip no delay
</span>

License

MIT © GitHub