mirror of
https://github.com/twbs/bootstrap.git
synced 2024-12-04 16:24:22 +01:00
8f7bd41993
* update docs path from docs/4.0/ to docs/4.1/ * bump version to 4.1.0 * Update redirects to work for 4.1 docs move * Update docs version switcher to include latest and link to 4.0 docs * re-run dist * Update package-lock.json * Update docs-navbar.html
116 lines
4.4 KiB
Markdown
116 lines
4.4 KiB
Markdown
---
|
|
layout: docs
|
|
title: Alerts
|
|
description: Provide contextual feedback messages for typical user actions with the handful of available and flexible alert messages.
|
|
group: components
|
|
toc: true
|
|
---
|
|
|
|
## Examples
|
|
|
|
Alerts are available for any length of text, as well as an optional dismiss button. For proper styling, use one of the eight **required** contextual classes (e.g., `.alert-success`). For inline dismissal, use the [alerts jQuery plugin](#dismissing).
|
|
|
|
{% capture example %}
|
|
{% for color in site.data.theme-colors %}
|
|
<div class="alert alert-{{ color.name }}" role="alert">
|
|
A simple {{ color.name }} alert—check it out!
|
|
</div>{% endfor %}
|
|
{% endcapture %}
|
|
{% include example.html content=example %}
|
|
|
|
{% include callout-warning-color-assistive-technologies.md %}
|
|
|
|
### Link color
|
|
|
|
Use the `.alert-link` utility class to quickly provide matching colored links within any alert.
|
|
|
|
{% capture example %}
|
|
{% for color in site.data.theme-colors %}
|
|
<div class="alert alert-{{ color.name }}" role="alert">
|
|
A simple {{ color.name }} alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
|
|
</div>{% endfor %}
|
|
{% endcapture %}
|
|
{% include example.html content=example %}
|
|
|
|
### Additional content
|
|
|
|
Alerts can also contain additional HTML elements like headings, paragraphs and dividers.
|
|
|
|
{% capture example %}
|
|
<div class="alert alert-success" role="alert">
|
|
<h4 class="alert-heading">Well done!</h4>
|
|
<p>Aww yeah, you successfully read this important alert message. This example text is going to run a bit longer so that you can see how spacing within an alert works with this kind of content.</p>
|
|
<hr>
|
|
<p class="mb-0">Whenever you need to, be sure to use margin utilities to keep things nice and tidy.</p>
|
|
</div>
|
|
{% endcapture %}
|
|
{% include example.html content=example %}
|
|
|
|
|
|
### Dismissing
|
|
|
|
Using the alert JavaScript plugin, it's possible to dismiss any alert inline. Here's how:
|
|
|
|
- Be sure you've loaded the alert plugin, or the compiled Bootstrap JavaScript.
|
|
- If you're building our JavaScript from source, it [requires `util.js`]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/javascript/#util). The compiled version includes this.
|
|
- Add a dismiss button and the `.alert-dismissible` class, which adds extra padding to the right of the alert and positions the `.close` button.
|
|
- On the dismiss button, add the `data-dismiss="alert"` attribute, which triggers the JavaScript functionality. Be sure to use the `<button>` element with it for proper behavior across all devices.
|
|
- To animate alerts when dismissing them, be sure to add the `.fade` and `.show` classes.
|
|
|
|
You can see this in action with a live demo:
|
|
|
|
{% capture example %}
|
|
<div class="alert alert-warning alert-dismissible fade show" role="alert">
|
|
<strong>Holy guacamole!</strong> You should check in on some of those fields below.
|
|
<button type="button" class="close" data-dismiss="alert" aria-label="Close">
|
|
<span aria-hidden="true">×</span>
|
|
</button>
|
|
</div>
|
|
{% endcapture %}
|
|
{% include example.html content=example %}
|
|
|
|
## JavaScript behavior
|
|
|
|
### Triggers
|
|
|
|
Enable dismissal of an alert via JavaScript:
|
|
|
|
{% highlight js %}
|
|
$('.alert').alert()
|
|
{% endhighlight %}
|
|
|
|
Or with `data` attributes on a button **within the alert**, as demonstrated above:
|
|
|
|
{% highlight html %}
|
|
<button type="button" class="close" data-dismiss="alert" aria-label="Close">
|
|
<span aria-hidden="true">×</span>
|
|
</button>
|
|
{% endhighlight %}
|
|
|
|
Note that closing an alert will remove it from the DOM.
|
|
|
|
### Methods
|
|
|
|
| Method | Description |
|
|
| --- | --- |
|
|
| `$().alert()` | Makes an alert listen for click events on descendant elements which have the `data-dismiss="alert"` attribute. (Not necessary when using the data-api's auto-initialization.) |
|
|
| `$().alert('close')` | Closes an alert by removing it from the DOM. If the `.fade` and `.show` classes are present on the element, the alert will fade out before it is removed. |
|
|
| `$().alert('dispose')` | Destroys an element's alert. |
|
|
|
|
{% highlight js %}$(".alert").alert('close'){% endhighlight %}
|
|
|
|
### Events
|
|
|
|
Bootstrap's alert plugin exposes a few events for hooking into alert functionality.
|
|
|
|
| Event | Description |
|
|
| --- | --- |
|
|
| `close.bs.alert` | This event fires immediately when the <code>close</code> instance method is called. |
|
|
| `closed.bs.alert` | This event is fired when the alert has been closed (will wait for CSS transitions to complete). |
|
|
|
|
{% highlight js %}
|
|
$('#myAlert').on('closed.bs.alert', function () {
|
|
// do something…
|
|
})
|
|
{% endhighlight %}
|