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Add new offcanvas support to navbars 

Co-Authored-By: craftwerk <1193597+craftwerk@users.noreply.github.com>
This commit is contained in:
craftwerk 2021-04-01 19:24:17 +02:00 committed by Mark Otto
parent ed3f2d46c4
commit 06a1ca5623
2 changed files with 94 additions and 1 deletions
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31
scss/_navbar.scss
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@ -193,13 +193,42 @@
.navbar-toggler {
display: none;
}
.offcanvas-header {
display: none;
}
.offcanvas {
position: inherit;
bottom: 0;
z-index: 1000;
flex-grow: 1;
visibility: visible !important; /* stylelint-disable-line declaration-no-important */
background-color: transparent;
border-right: 0;
border-left: 0;
@include transition(none);
transform: none;
}
.offcanvas-top,
.offcanvas-bottom {
height: auto;
border-top: 0;
border-bottom: 0;
}
.offcanvas-body {
display: flex;
flex-grow: 0;
padding: 0;
overflow-y: visible;
}
}
}
}
}
// scss-docs-end navbar-expand-loop
// Navbar themes
//
// Styles for switching between navbars with light or dark background.

64
site/content/docs/5.0/components/navbar.md
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@ -655,6 +655,70 @@ Sometimes you want to use the collapse plugin to trigger a container element for
When you do this, we recommend including additional JavaScript to move the focus programmatically to the container when it is opened. Otherwise, keyboard users and users of assistive technologies will likely have a hard time finding the newly revealed content - particularly if the container that was opened comes *before* the toggler in the document's structure. We also recommend making sure that the toggler has the `aria-controls` attribute, pointing to the `id` of the content container. In theory, this allows assistive technology users to jump directly from the toggler to the container it controls–but support for this is currently quite patchy.
### Offcanvas
Transform your expanding and collapsing navbar into an offcanvas drawer with the offcanvas plugin. We extend both the offcanvas default styles and use our `.navbar-expand-*` classes to create a dynamic and flexible navigation sidebar.
In the example below, to create an offcanvas navbar that is always collapsed across all breakpoints, omit the `.navbar-expand-*` class entirely.
{{< example >}}
<nav class="navbar navbar-light bg-light fixed-top">
<div class="container-fluid">
<a class="navbar-brand" href="#">Offcanvas navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="offcanvas" data-bs-target="#offcanvasNavbar" aria-controls="offcanvasNavbar">
<span class="navbar-toggler-icon"></span>
</button>
<div class="offcanvas offcanvas-end" tabindex="-1" id="offcanvasNavbar" aria-labelledby="offcanvasNavbarLabel">
<div class="offcanvas-header">
<h5 class="offcanvas-title" id="offcanvasNavbarLabel">Offcanvas</h5>
<button type="button" class="btn-close text-reset" data-bs-dismiss="offcanvas" aria-label="Close"></button>
</div>
<div class="offcanvas-body">
<ul class="navbar-nav justify-content-end flex-grow-1 pe-3">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="offcanvasNavbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="offcanvasNavbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
</ul>
<form class="d-flex">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</div>
</nav>
{{< /example >}}
To create an offcanvas navbar that expands into a normal navbar at a specific breakpoint like `lg`, use `.navbar-expand-lg`.
```html
<nav class="navbar navbar-light navbar-expand-lg bg-light fixed-top">
<a class="navbar-brand" href="#">Offcanvas navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="offcanvas" data-bs-target="#navbarOffcanvasLg" aria-controls="navbarOffcanvasLg">
<span class="navbar-toggler-icon"></span>
</button>
<div class="offcanvas offcanvas-end" tabindex="-1" id="navbarOffcanvasLg" aria-labelledby="navbarOffcanvasLgLabel">
...
</div>
</nav>
```
## Sass
### Variables