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Bootstrap/site/content/docs/5.0/forms/input-group.md
Patrick H. Lauke eeb73e0ccf
Docs: forms accessibility cleanup (#31114)
* Expand on disabled fieldsets and faked buttons

include further advice/information on how to disable faked buttons for keyboard/AT users

* Centralise accessible name advice in forms overview

seems odd to only mention (separately) label, aria-label etc in input-group and layout. the advice is just as pertinent in other sections like select. checks only skims over this.

moving this, in expanded form, into the overview section itself. adding a specific cross-reference (just because they are easily left with no accname at all) in the checks page.

* Change warning about accessibility, modify server-side example

- paradoxically, due to our current problems with validation (see #28414) and the fact that browsers seem to have improved in this area for the most part, it's now actually better to use browser-native validation
- added explicit `id` and `aria-describedby` association to at least the server-side form error messages, to show how it should be done properly, and expanded the prose for that explaining this.

* Replace `.sr-only` with `.visually-hidden` in new addition

* Copy edits for clarity in parenthetical

* Copy and formatting tweaks

- Wordsmithing here and there
- Turns some hyphens into em dashes
- Turns a long running comma separated list into an unordered list
- Rearranges some copy just a bit

Co-authored-by: Mark Otto <markd.otto@gmail.com>
2020-07-11 21:38:43 +01:00

329 lines
13 KiB
Markdown

---
layout: docs
title: Input group
description: Easily extend form controls by adding text, buttons, or button groups on either side of textual inputs, custom selects, and custom file inputs.
group: forms
toc: true
---
## Basic example
Place one add-on or button on either side of an input. You may also place one on both sides of an input. Remember to place `<label>`s outside the input group.
{{< example >}}
<div class="input-group mb-3">
<span class="input-group-text" id="basic-addon1">@</span>
<input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="basic-addon1">
</div>
<div class="input-group mb-3">
<input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="basic-addon2">
<span class="input-group-text" id="basic-addon2">@example.com</span>
</div>
<label for="basic-url" class="form-label">Your vanity URL</label>
<div class="input-group mb-3">
<span class="input-group-text" id="basic-addon3">https://example.com/users/</span>
<input type="text" class="form-control" id="basic-url" aria-describedby="basic-addon3">
</div>
<div class="input-group mb-3">
<span class="input-group-text">$</span>
<input type="text" class="form-control" aria-label="Amount (to the nearest dollar)">
<span class="input-group-text">.00</span>
</div>
<div class="input-group">
<span class="input-group-text">With textarea</span>
<textarea class="form-control" aria-label="With textarea"></textarea>
</div>
{{< /example >}}
## Wrapping
Input groups wrap by default via `flex-wrap: wrap` in order to accommodate custom form field validation within an input group. You may disable this with `.flex-nowrap`.
{{< example >}}
<div class="input-group flex-nowrap">
<span class="input-group-text" id="addon-wrapping">@</span>
<input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="addon-wrapping">
</div>
{{< /example >}}
## Sizing
Add the relative form sizing classes to the `.input-group` itself and contents within will automatically resize—no need for repeating the form control size classes on each element.
**Sizing on the individual input group elements isn't supported.**
{{< example >}}
<div class="input-group input-group-sm mb-3">
<span class="input-group-text" id="inputGroup-sizing-sm">Small</span>
<input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-sm">
</div>
<div class="input-group mb-3">
<span class="input-group-text" id="inputGroup-sizing-default">Default</span>
<input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-default">
</div>
<div class="input-group input-group-lg">
<span class="input-group-text" id="inputGroup-sizing-lg">Large</span>
<input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-lg">
</div>
{{< /example >}}
## Checkboxes and radios
Place any checkbox or radio option within an input group's addon instead of text.
{{< example >}}
<div class="input-group mb-3">
<div class="input-group-text">
<input class="form-check-input" type="checkbox" value="" aria-label="Checkbox for following text input">
</div>
<input type="text" class="form-control" aria-label="Text input with checkbox">
</div>
<div class="input-group">
<div class="input-group-text">
<input class="form-check-input" type="radio" value="" aria-label="Radio button for following text input">
</div>
<input type="text" class="form-control" aria-label="Text input with radio button">
</div>
{{< /example >}}
## Multiple inputs
While multiple `<input>`s are supported visually, validation styles are only available for input groups with a single `<input>`.
{{< example >}}
<div class="input-group">
<span class="input-group-text">First and last name</span>
<input type="text" aria-label="First name" class="form-control">
<input type="text" aria-label="Last name" class="form-control">
</div>
{{< /example >}}
## Multiple addons
Multiple add-ons are supported and can be mixed with checkbox and radio input versions.
{{< example >}}
<div class="input-group mb-3">
<span class="input-group-text">$</span>
<span class="input-group-text">0.00</span>
<input type="text" class="form-control" aria-label="Dollar amount (with dot and two decimal places)">
</div>
<div class="input-group">
<input type="text" class="form-control" aria-label="Dollar amount (with dot and two decimal places)">
<span class="input-group-text">$</span>
<span class="input-group-text">0.00</span>
</div>
{{< /example >}}
## Button addons
{{< example >}}
<div class="input-group mb-3">
<button class="btn btn-outline-secondary" type="button" id="button-addon1">Button</button>
<input type="text" class="form-control" placeholder="" aria-label="Example text with button addon" aria-describedby="button-addon1">
</div>
<div class="input-group mb-3">
<input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="button-addon2">
<button class="btn btn-outline-secondary" type="button" id="button-addon2">Button</button>
</div>
<div class="input-group mb-3">
<button class="btn btn-outline-secondary" type="button">Button</button>
<button class="btn btn-outline-secondary" type="button">Button</button>
<input type="text" class="form-control" placeholder="" aria-label="Example text with two button addons">
</div>
<div class="input-group">
<input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username with two button addons">
<button class="btn btn-outline-secondary" type="button">Button</button>
<button class="btn btn-outline-secondary" type="button">Button</button>
</div>
{{< /example >}}
## Buttons with dropdowns
{{< example >}}
<div class="input-group mb-3">
<button class="btn btn-outline-secondary dropdown-toggle" type="button" data-toggle="dropdown" aria-expanded="false">Dropdown</button>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Separated link</a></li>
</ul>
<input type="text" class="form-control" aria-label="Text input with dropdown button">
</div>
<div class="input-group mb-3">
<input type="text" class="form-control" aria-label="Text input with dropdown button">
<button class="btn btn-outline-secondary dropdown-toggle" type="button" data-toggle="dropdown" aria-expanded="false">Dropdown</button>
<ul class="dropdown-menu dropdown-menu-right">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Separated link</a></li>
</ul>
</div>
<div class="input-group">
<button class="btn btn-outline-secondary dropdown-toggle" type="button" data-toggle="dropdown" aria-expanded="false">Dropdown</button>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="#">Action before</a></li>
<li><a class="dropdown-item" href="#">Another action before</a></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Separated link</a></li>
</ul>
<input type="text" class="form-control" aria-label="Text input with 2 dropdown buttons">
<button class="btn btn-outline-secondary dropdown-toggle" type="button" data-toggle="dropdown" aria-expanded="false">Dropdown</button>
<ul class="dropdown-menu dropdown-menu-right">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Separated link</a></li>
</ul>
</div>
{{< /example >}}
## Segmented buttons
{{< example >}}
<div class="input-group mb-3">
<button type="button" class="btn btn-outline-secondary">Action</button>
<button type="button" class="btn btn-outline-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-expanded="false">
<span class="visually-hidden">Toggle Dropdown</span>
</button>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Separated link</a></li>
</ul>
<input type="text" class="form-control" aria-label="Text input with segmented dropdown button">
</div>
<div class="input-group">
<input type="text" class="form-control" aria-label="Text input with segmented dropdown button">
<button type="button" class="btn btn-outline-secondary">Action</button>
<button type="button" class="btn btn-outline-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-expanded="false">
<span class="visually-hidden">Toggle Dropdown</span>
</button>
<ul class="dropdown-menu dropdown-menu-right">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Separated link</a></li>
</ul>
</div>
{{< /example >}}
## Custom forms
Input groups include support for custom selects and custom file inputs. Browser default versions of these are not supported.
### Custom select
{{< example >}}
<div class="input-group mb-3">
<label class="input-group-text" for="inputGroupSelect01">Options</label>
<select class="form-select" id="inputGroupSelect01">
<option selected>Choose...</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
</div>
<div class="input-group mb-3">
<select class="form-select" id="inputGroupSelect02">
<option selected>Choose...</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
<label class="input-group-text" for="inputGroupSelect02">Options</label>
</div>
<div class="input-group mb-3">
<button class="btn btn-outline-secondary" type="button">Button</button>
<select class="form-select" id="inputGroupSelect03" aria-label="Example select with button addon">
<option selected>Choose...</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
</div>
<div class="input-group">
<select class="form-select" id="inputGroupSelect04" aria-label="Example select with button addon">
<option selected>Choose...</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
<button class="btn btn-outline-secondary" type="button">Button</button>
</div>
{{< /example >}}
### Custom file input
{{< example >}}
<div class="input-group mb-3">
<span class="input-group-text" id="inputGroupFileAddon01">Upload</span>
<div class="form-file">
<input type="file" class="form-file-input" id="inputGroupFile01" aria-describedby="inputGroupFileAddon01">
<label class="form-file-label" for="inputGroupFile01">
<span class="form-file-text">Choose file...</span>
<span class="form-file-button">Browse</span>
</label>
</div>
</div>
<div class="input-group mb-3">
<div class="form-file">
<input type="file" class="form-file-input" id="inputGroupFile02">
<label class="form-file-label" for="inputGroupFile02" aria-describedby="inputGroupFileAddon02">
<span class="form-file-text">Choose file...</span>
<span class="form-file-button">Browse</span>
</label>
</div>
<span class="input-group-text" id="inputGroupFileAddon02">Upload</span>
</div>
<div class="input-group mb-3">
<button class="btn btn-outline-secondary" type="button" id="inputGroupFileAddon03">Button</button>
<div class="form-file">
<input type="file" class="form-file-input" id="inputGroupFile03" aria-describedby="inputGroupFileAddon03">
<label class="form-file-label" for="inputGroupFile03">
<span class="form-file-text">Choose file...</span>
<span class="form-file-button">Browse</span>
</label>
</div>
</div>
<div class="input-group">
<div class="form-file">
<input type="file" class="form-file-input" id="inputGroupFile04" aria-describedby="inputGroupFileAddon04">
<label class="form-file-label" for="inputGroupFile04">
<span class="form-file-text">Choose file...</span>
<span class="form-file-button">Browse</span>
</label>
</div>
<button class="btn btn-outline-secondary" type="button" id="inputGroupFileAddon04">Button</button>
</div>
{{< /example >}}