browser-device-features

Detect features and capabilities of a browser.

browser-device-features detects several features of a browser, including:

• Does the device have a touch screen?
• Does the device have pointer?
• Does the pointer has a coarse or fine tip?
• Does the user prefer light or dark mode?
• Is the device in portrait or landscape mode?
• What is the window's current size?
• What is the device's screen size?
• Has the user touched anything?
• Has the user moved a mouse?
• Has the user moved a pointer?

Demo

Live demo is avaible at devtools.terrymorse.com.

Install

  npm install browser-device-features

Usage

<script src="bd-features.js"></script>
<script>
    let touchDevice = BdFeatures.hasTouch();
    /* --- */
    let pointed = BdFeatures.userHasPointed();
</script>

Or simply use the CDN:

<script
  src="https://cdn.jsdelivr.net/npm/browser-device-features/bd-features.js">
</script>

---

Functions

Function Name	Returns	Description
browserSupported	boolean	browser-device-features supports this browser
hasTouch	boolean	touch is possible
canHover	boolean	hover is possible
hasPointer	boolean	pointing device exists
finePointer	boolean	pointer has fine point (mouse, trackpad, stylus)
coarsePointer	boolean	pointer has coarse point (touch screen)
wantsLight	boolean	user prefers light mode
wantsDark	boolean	user prefers dark mode
noLightDarkPreference	boolean	no user light-dark preference
isPortrait	boolean	display is in portrait orientation
isLandscape	boolean	display is in landscape orientation
windowSize	string	(see below)
screenHeight	number	height of the device screen
screenWidth	number	width of the device screen
touched	boolean	user has used touch
moused	boolean	user has moved mouse
pointed	boolean	user has moved pointer

Constants returned by windowSize()

windowSize() returns sizes matching the Bootstrap window sizes. The following constants define the sizes:

Constant	Meaning
BdFeatures.WINDOW_XS	extra-small screen (width < 576px)
BdFeatures.WINDOW_SMALL	small screen (576 ≤ width < 768px)
BdFeatures.WINDOW_MEDIUM	medium screen (768 ≤ width < 992px)
BdFeatures.WINDOW_LARGE	large screen (992 ≤ width < 1200px)
BdFeatures.WINDOW_XL	extra- large screen (width ≥ 1200px)

Browser Compatibility

browser-device-features is compatible with the following browsers:

Browser	Compatible Version
IE	(none)
Edge	12+ (2015)
Firefox	64+ (2018)
Chrome	41+ (2015)
Safari	9+ (2015)
Opera	28+ (2015)
iOS Safari	9+ (2015)
Android Browser	80+ (2020)
Opera Mobile	46+ (2016)
Chrome for Android	80+

Functions that are not compatible with the browser will return null.

A current list of compatible browsers is maintained at caniuse.com.

MIT License

Copyright (c) 2020 Terry Morse

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.