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198 lines
5.5 KiB
198 lines
5.5 KiB
NProgress
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=========
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Slim progress bars for Ajax'y applications. Inspired by Google, YouTube, and
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Medium.
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Installation
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------------
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Add [nprogress.js] and [nprogress.css] to your project.
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```html
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<script src='nprogress.js'></script>
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<link rel='stylesheet' href='nprogress.css'/>
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```
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NProgress is available via [bower] and [npm] and [spm].
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$ bower install --save nprogress
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$ npm install --save nprogress
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[bower]: http://bower.io/search/?q=nprogress
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[npm]: https://www.npmjs.org/package/nprogress
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[spm]: http://spmjs.io/package/nprogress
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Basic usage
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-----------
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Simply call `start()` and `done()` to control the progress bar.
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~~~ js
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NProgress.start();
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NProgress.done();
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~~~
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Using [Turbolinks] or similar? Ensure you're using Turbolinks 1.3.0+, and use
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this: (explained
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[here](https://github.com/rstacruz/nprogress/issues/8#issuecomment-23010560))
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~~~ js
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$(document).on('page:fetch', function() { NProgress.start(); });
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$(document).on('page:change', function() { NProgress.done(); });
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$(document).on('page:restore', function() { NProgress.remove(); });
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~~~
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Ideas
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-----
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* Add progress to your Ajax calls! Bind it to the jQuery `ajaxStart` and
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`ajaxStop` events.
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* Make a fancy loading bar even without Turbolinks/Pjax! Bind it to
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`$(document).ready` and `$(window).load`.
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Advanced usage
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--------------
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__Percentages:__ To set a progress percentage, call `.set(n)`, where *n* is a
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number between `0..1`.
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~~~ js
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NProgress.set(0.0); // Sorta same as .start()
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NProgress.set(0.4);
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NProgress.set(1.0); // Sorta same as .done()
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~~~
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__Incrementing:__ To increment the progress bar, just use `.inc()`. This
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increments it with a random amount. This will never get to 100%: use it for
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every image load (or similar).
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~~~ js
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NProgress.inc();
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~~~
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If you want to increment by a specific value, you can pass that as a parameter:
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~~~ js
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NProgress.inc(0.2); // This will get the current status value and adds 0.2 until status is 0.994
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~~~
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__Force-done:__ By passing `true` to `done()`, it will show the progress bar
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even if it's not being shown. (The default behavior is that *.done()* will not
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do anything if *.start()* isn't called)
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~~~ js
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NProgress.done(true);
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~~~
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__Get the status value:__ To get the status value, use `.status`
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Configuration
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-------------
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#### `minimum`
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Changes the minimum percentage used upon starting. (default: `0.08`)
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~~~ js
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NProgress.configure({ minimum: 0.1 });
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~~~
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#### `template`
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You can change the markup using `template`. To keep the progress
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bar working, keep an element with `role='bar'` in there. See the [default template]
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for reference.
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~~~ js
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NProgress.configure({
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template: "<div class='....'>...</div>"
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});
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~~~
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#### `easing` and `speed`
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Adjust animation settings using *easing* (a CSS easing string)
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and *speed* (in ms). (default: `ease` and `200`)
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~~~ js
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NProgress.configure({ easing: 'ease', speed: 500 });
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~~~
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#### `trickle`
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Turn off the automatic incrementing behavior by setting this to `false`. (default: `true`)
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~~~ js
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NProgress.configure({ trickle: false });
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~~~
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#### `trickleRate` and `trickleSpeed`
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You can adjust the *trickleRate* (how much to increase per trickle) and
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*trickleSpeed* (how often to trickle, in ms).
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~~~ js
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NProgress.configure({ trickleRate: 0.02, trickleSpeed: 800 });
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~~~
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#### `showSpinner`
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Turn off loading spinner by setting it to false. (default: `true`)
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~~~ js
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NProgress.configure({ showSpinner: false });
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~~~
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#### `parent`
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specify this to change the parent container. (default: `body`)
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~~~ js
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NProgress.configure({ parent: '#container' });
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~~~
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Customization
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-------------
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Just edit `nprogress.css` to your liking. Tip: you probably only want to find
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and replace occurrences of `#29d`.
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The included CSS file is pretty minimal... in fact, feel free to scrap it and
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make your own!
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Resources
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---------
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* [New UI Pattern: Website Loading Bars](http://www.usabilitypost.com/2013/08/19/new-ui-pattern-website-loading-bars/) (usabilitypost.com)
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Support
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-------
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__Bugs and requests__: submit them through the project's issues tracker.<br>
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[]( https://github.com/rstacruz/nprogress/issues )
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__Questions__: ask them at StackOverflow with the tag *nprogress*.<br>
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[]( http://stackoverflow.com/questions/tagged/nprogress )
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__Chat__: join us at gitter.im.<br>
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[]( https://gitter.im/rstacruz/nprogress )
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[default template]:
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https://github.com/rstacruz/nprogress/blob/master/nprogress.js#L31
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[Turbolinks]: https://github.com/rails/turbolinks
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[nprogress.js]: http://ricostacruz.com/nprogress/nprogress.js
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[nprogress.css]: http://ricostacruz.com/nprogress/nprogress.css
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Thanks
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------
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**NProgress** © 2013-2014, Rico Sta. Cruz. Released under the [MIT License].<br>
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Authored and maintained by Rico Sta. Cruz with help from [contributors].
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> [ricostacruz.com](http://ricostacruz.com) ·
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> GitHub [@rstacruz](https://github.com/rstacruz) ·
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> Twitter [@rstacruz](https://twitter.com/rstacruz)
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[MIT License]: http://mit-license.org/
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[contributors]: http://github.com/rstacruz/nprogress/contributors
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[](http://travis-ci.org/rstacruz/nprogress)
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[](https://npmjs.org/package/nprogress "View this project on npm")
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[](http://spmjs.io/package/nprogress)
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