mirror of
https://github.com/lancedikson/bowser
synced 2024-10-27 20:34:22 +00:00
142 lines
4.1 KiB
Markdown
142 lines
4.1 KiB
Markdown
## Bowser
|
|
A Browser detector. Because sometimes, there is no other way, and not even good modern browsers always provide good feature detection mechanisms.
|
|
|
|
[](https://travis-ci.org/lancedikson/bowser/)
|
|
|
|
# Contents
|
|
- [Overview](#overview)
|
|
- [Use cases](#use-cases)
|
|
- [Advanced usage](#advanced-usage)
|
|
- [How can I help?](#contributing)
|
|
|
|
# Overview
|
|
|
|
The library is made to help to detect what browser your user has and gives you a convenient API to filter the users somehow depending on their browsers.
|
|
|
|
_Please, note that this is an alpha version. Check out the [1.x](https://github.com/lancedikson/bowser/tree/v1.x) branch for a stable version._
|
|
|
|
**Changes of the 2.0**
|
|
The upcoming 2.0 version has drastically changed API. All available methods can be found in the `docs` folder from now on and on a webpage soon.
|
|
|
|
# Use cases
|
|
|
|
First of all, require the library:
|
|
|
|
```javascript
|
|
const bowser = require('bowser');
|
|
```
|
|
|
|
By default, `require('bowser')` requires the *ES6 version of files*, which
|
|
**do not** include any polyfills.
|
|
|
|
In case if you don't use your own `babel-polyfill` you may need to have pre-built bundle with all needed polyfills.
|
|
So, for you it's suitable to require bowser like this: `require('bowser/bundled')`.
|
|
As the result, you get a ES5 version of bowser with `babel-polyfill` bundled together.
|
|
|
|
If you use bowser for Node.js, you'd better use `require('bowser/es5')`,
|
|
since source files have `import` statements, which are not compatible with Node.js yet.
|
|
|
|
## Browser props detection
|
|
|
|
Often we need to pick users' browser properties such as the name, the version, the rendering engine and so on. Here is an example how to make it with Bowser:
|
|
|
|
```javascript
|
|
const browser = bowser.getParser(window.navigator.userAgent);
|
|
|
|
console.log(`The current browser name is "${browser.getBrowserName()}"`);
|
|
// The current browser name is "Internet Explorer"
|
|
```
|
|
|
|
or
|
|
|
|
```javascript
|
|
const impression = new Impression();
|
|
|
|
const browser = bowser.getParser(window.navigator.userAgent);
|
|
const browserInfo = browser.getBrowser();
|
|
impression.brName = browserInfo.name;
|
|
impression.brVer = browserInfo.version;
|
|
```
|
|
|
|
or
|
|
|
|
```javascript
|
|
const browser = bowser.getParser(window.navigator.userAgent);
|
|
impression.userTechData = browser.parse();
|
|
console.log(impression.userTechData);
|
|
// outputs
|
|
{
|
|
browser: {
|
|
name: "Internet Explorer"
|
|
version: "11.0"
|
|
},
|
|
os: {
|
|
name: "Windows"
|
|
version: "NT 6.3"
|
|
versionName: "8.1"
|
|
},
|
|
platform: {
|
|
type: "desktop"
|
|
},
|
|
engine: {
|
|
name: "Trident"
|
|
version: "7.0"
|
|
}
|
|
}
|
|
```
|
|
|
|
|
|
## Filtering browsers
|
|
|
|
You could want to filter some particular browsers to provide any special support for them or make any workarounds.
|
|
It could look like this:
|
|
|
|
```javascript
|
|
const browser = bowser.getParsers(window.navigator.userAgent);
|
|
const isValidBrowser = browser.satisfies({
|
|
// declare browsers per OS
|
|
windows: {
|
|
"internet explorer": ">10",
|
|
},
|
|
macos: {
|
|
safari: ">10.1"
|
|
},
|
|
|
|
// per platform (mobile, desktop or tablet)
|
|
mobile: {
|
|
safari: '>9',
|
|
'android browser': '>3.10'
|
|
},
|
|
|
|
// or in general
|
|
chrome: ">20.1.1432",
|
|
firefox: ">31",
|
|
opera: ">22"
|
|
});
|
|
```
|
|
|
|
Settings for any particular OS or platform has more priority and redefines settings of standalone browsers.
|
|
Thus, you can define OS or platform specific rules and they will have more priority in the end.
|
|
|
|
More of API and possibilities you will find in the `docs` folder.
|
|
|
|
# Contributing
|
|
If you'd like to contribute a change to bowser, modify the files in `src/`, then run the following (you'll need node + npm installed):
|
|
|
|
``` sh
|
|
$ npm install
|
|
$ npm test
|
|
```
|
|
|
|
### Adding tests
|
|
See the list in `test/acceptance/useragentstrings.yml` with example user agents and their expected bowser object.
|
|
|
|
Whenever you add support for new browsers or notice a bug / mismatch, please update the list and
|
|
check if all tests are still passing.
|
|
|
|
### Similar Projects
|
|
* [Kong](https://github.com/BigBadBleuCheese/Kong) - A C# port of Bowser.
|
|
|
|
### License
|
|
Licensed as MIT. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE file for more details.
|