Icon-Sidebar. Info

Was macht die Komponente?

Die Icon-Sidebar ist eine vertikale Navigationsleiste, die zur Strukturierung von Inhalten innerhalb einer Anwendung dient. Sie ermöglicht eine schnelle und intuitive Navigation zwischen verschiedenen Bereichen oder Funktionen der Anwendung. Die Icon-Sidebar kann Links oder Buttons enthalten.

Wann soll die Komponente eingesetzt werden?

  • Wenn eine Anwendung eine permanente oder leicht zugängliche Navigation benötigt.
  • Wenn Benutzer:innen schnell zwischen mehreren Hauptbereichen wechseln müssen.

Regeln.

  • Die Icon-Sidebar kann mit der Sidebar kombiniert werden. In diesem Fall soll entweder die Icon-Sidebar oder Sidebar die Farbvariante «Milk» verwenden, damit sich die zwei Komponenten visuell differenzieren lassen.
Sidebar
Anatomie

Anatomie der Komponente


Nummer Typ Beschreibung Optional Hinweis
1 Komponente sbb-icon-sidebar Nein
2 Komponente sbb-icon-sidebar-button oder sbb-icon-sidebar-link Nein
2a Komponente sbb-icon-sidebar-button oder sbb-icon-sidebar-link Nein Hover State mit Tooltip
2b Komponente sbb-icon-sidebar-button oder sbb-icon-sidebar-link Nein Current State
3 Komponente sbb-sidebar-title Ja
4 Komponente sbb-sidebar-close-button Ja
5 Inhalt Nein
6 Eigenschaft Backdrop Ja Nur im Overlay-Mode sichtbar
Demo Default.
Milk.
Milk End.
Nested.
Nested End.
HTML in Zwischenablage kopiert.
Implementation

The <sbb-icon-sidebar> is a component that can display action items with an icon on the left or right side of the viewport.

The <sbb-icon-sidebar-container> is a component that holds together the <sbb-icon-sidebar-content>
and one or two <sbb-icon-sidebar> elements.

Inside the <sbb-icon-sidebar-content> another <sbb-icon-sidebar-container> can be placed
to achieve multiple nested icon sidebars.

The icon sidebar components are designed to add side content to a fullscreen app.
To set up an icon sidebar we use three components: <sbb-icon-sidebar-container> which acts as a structural container for
our content and sidebar, <sbb-icon-sidebar-content> which represents the main content,
and <sbb-icon-sidebar> which represents the added side content.

<sbb-icon-sidebar-container>
  <sbb-icon-sidebar>
    <sbb-icon-sidebar-link
      sbb-tooltip="Go to the party"
      accessibility-label="Go to the party"
      icon-name="glass-cocktail-small"
      href="#"
    ></sbb-icon-sidebar-link>
    <sbb-icon-sidebar-link
      sbb-tooltip="Be a unicorn"
      accessibility-label="Be a unicorn"
      icon-name="unicorn-small"
      href="#"
      class="sbb-active"
      accessibility-current="page"
    ></sbb-icon-sidebar-link>
  </sbb-icon-sidebar>
  <sbb-icon-sidebar-content role="main">
    <p style="padding: var(--sbb-spacing-fixed-4x); margin: 0">
      In the enchanting world of fantasy, unicorns are legendary creatures known for their grace,
      purity, and magical abilities. These mystical beings have inspired countless tales of bravery
      and wonder. Here, we delve into some captivating unicorn success stories that continue to
      enchant and inspire, each with a touch of public transport magic.
    </p>
  </sbb-icon-sidebar-content>
</sbb-icon-sidebar-container>

Style.

If the <sbb-sidebar-container> is placed after the <sbb-header>, an automatic margin-block-start is added.
In other contexts you may need to set the margin manually, e.g. margin-block-start: var(--sbb-header-vertical-spacing);.

Color.

Per default, the <sbb-icon-sidebar> receives a white background color. As alternative,
it's possible to set the color property to milk.
If using the <sbb-icon-sidebar> along with a <sbb-sidebar>, it's recommended to alternate
the background colors (white / milk) for a clear visual distinction.

<sbb-icon-sidebar color="milk"></sbb-icon-sidebar>

Position.

An <sbb-icon-sidebar> can be positioned at the left or right side of the viewport.
To display the icon sidebar on the right side, place the <sbb-icon-sidebar>
after the <sbb-icon-sidebar-content> in the DOM.
Technically it's possible to place two icon sidebars, but from UX perspective it's not recommended.

positioned on the right side:

<sbb-icon-sidebar-container>
  <sbb-icon-sidebar-content role="main">Content</sbb-icon-sidebar-content>
  <sbb-icon-sidebar>Sidebar Content</sbb-icon-sidebar>
</sbb-icon-sidebar-container>

Icon Sidebar Actions.

There are two types of icon sidebar actions: links and buttons, represented by the <sbb-icon-sidebar-link>
and <sbb-icon-sidebar-button> components respectively.

<sbb-icon-sidebar-link
  icon-name="glass-cocktail-small"
  href="https://www.sbb.ch"
  accessibility-label="Go to the party"
></sbb-icon-sidebar-link>

<sbb-icon-sidebar-button
  icon-name="glass-cocktail-small"
  aria-label="Go to the party"
></sbb-icon-sidebar-button>

As an alternative, the icon can be slotted:

<sbb-icon-sidebar-link accessibility-label="Go to the party" href="https://www.sbb.ch">
  <sbb-icon name="glass-cocktail-small" slot="icon"></sbb-icon>
</sbb-icon-sidebar-link>

Active / current state.

To indicate an active state, the CSS class sbb-active should be used.

From accessibility perspective accessibility-current="page" (or aria-current="page"
for <sbb-icon-sidebar-button>) should be set whenever the CSS class sbb-active is set.

<sbb-icon-sidebar-link
  href="https://www.sbb.ch"
  icon-name="glass-cocktail-small"
  accessibility-label="Go to the party"
  class="sbb-active"
  accessibility-current="page"
></sbb-icon-sidebar-link>

Combine with <sbb-sidebar>.

It's possible the combine the <sbb-icon-sidebar> with the <sbb-sidebar> as following:

<sbb-icon-sidebar-container>
  <sbb-icon-sidebar>Icon sidebar content</sbb-icon-sidebar>
  <sbb-icon-sidebar-content>
    <sbb-sidebar-container>
      <sbb-sidebar role="navigation">Sidebar content</sbb-sidebar>
      <sbb-sidebar-content role="main">Content</sbb-sidebar-content>
    </sbb-sidebar-container>
  </sbb-icon-sidebar-content>
</sbb-icon-sidebar-container>

Use with <sbb-header>.

In order to correctly display the shadow of the header when scrolled,
you need to set the scrollOrigin property of the <sbb-header>.
The value should be either the id of the <sbb-sidebar-content> / <sbb-icon-sidebar-content>
or the element reference itself. Note that when using nested sidebars, it's required to
continuously update the scrollOrigin property with the id/reference of the
currently active <sbb-sidebar-content> / <sbb-icon-sidebar-content>. Also, depending
on how e.g. a RouterOutlet (Angular) is used, it may also be necessary to update the scrollOrigin
property when the navigation changes.

<sbb-header scroll-origin="content">...</sbb-header>
<sbb-icon-sidebar-container>
  <sbb-icon-sidebar>...</sbb-icon-sidebar>
  <sbb-icon-sidebar-content id="content" role="main">Content</sbb-sidebar-content>
</sbb-icon-sidebar-container>

Accessibility.

The <sbb-icon-sidebar> has the role navigation applied.

The <sbb-sidebar-content> should be given a role based on what it contains. If it
represents the primary content of the page, it may make sense to mark it role="main". If no more
specific role makes sense, role="region" is a good fallback.

As described in sbb-icon-sidebar-link and
sbb-icon-sidebar-button, it's important to set
both a label and a tooltip to the action elements.
It's also described how to set the current icon as active (aria-current).

The <sbb-icon-sidebar-content> should be given a role based on what it contains. If it
represents the primary content of the page, it may make sense to mark it role="main". If no more
specific role makes sense, role="region" is a good fallback.

<sbb-icon-sidebar-container>
  <sbb-icon-sidebar>Sidebar Content</sbb-icon-sidebar>
  <sbb-icon-sidebar-content role="main">Content</sbb-icon-sidebar-content>
</sbb-icon-sidebar-container>

For the <sbb-icon-sidebar-button> and <sbb-icon-sidebar-link>> the definition of a meaningful
aria-label or accessibility-label (<sbb-icon-sidebar-link>>, forwarded as aria-label to the
inner <a> element) is mandatory as only an icon is displayed.
To show the user which entry is active, accessibility-current='page' (or aria-current="page"
for <sbb-icon-sidebar-button>) should be set whenever sbb-active class is set.
See https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Attributes/aria-current for more
information.

API Documentation.

class: SbbIconSidebarButtonElement, sbb-icon-sidebar-button.

Properties.

Name Attribute Privacy Type Default Description
form form public HTMLFormElement | null The <form> element to associate the button with.
iconName icon-name public string '' The icon name we want to use, choose from the small icon variants from the ui-icons category from here https://icons.app.sbb.ch.
name name public string Name of the form element. Will be read from name attribute.
type type public 'button' | 'reset' | 'submit' 'button' The type attribute to use for the button.
validationMessage - public string Returns the current error message, if available, which corresponds to the current validation state. Please note that only one message is returned at a time (e.g. if multiple validity states are invalid, only the chronologically first one is returned until it is fixed, at which point the next message might be returned, if it is still applicable). Also, a custom validity message (see below) has precedence over native validation messages.
validity - public ValidityState Returns the ValidityState object for this element.
value value public string '' Value of the form element.
willValidate - public boolean Returns true if this element will be validated when the form is submitted; false otherwise.

Methods.

Name Privacy Description Parameters Return Inherited From
checkValidity public Returns true if this element has no validity problems; false otherwise. Fires an invalid event at the element in the latter case. boolean SbbFormAssociatedMixin
reportValidity public Returns true if this element has no validity problems; otherwise, returns false, fires an invalid event at the element, and (if the event isn't canceled) reports the problem to the user. boolean SbbFormAssociatedMixin
setCustomValidity public Sets the custom validity message for this element. Use the empty string to indicate that the element does not have a custom validity error. message: string void SbbFormAssociatedMixin

Slots.

Name Description
icon Slot used to display the icon.

class: SbbIconSidebarContainerElement, sbb-icon-sidebar-container.

Properties.

Name Attribute Privacy Type Default Description
end - public SbbIconSidebarElement | null The icon-sidebar child at the end position.
sidebars - public SbbIconSidebarElement[] The icon-sidebar children.
start - public SbbIconSidebarElement | null The icon-sidebar child at the start position.

Slots.

Name Description
Use the unnamed slot to add sbb-sidebar and sbb-sidebar-content elements.

class: SbbIconSidebarContentElement, sbb-icon-sidebar-content.

Slots.

Name Description
Use the unnamed slot to add any content elements.

class: SbbIconSidebarElement, sbb-icon-sidebar.

Properties.

Name Attribute Privacy Type Default Description
color color public 'white' | 'milk' 'white' Background color of the icon sidebar. Either white or milk. *
container - public SbbIconSidebarContainerElement | null Returns the SbbIconSidebarContainerElement where this icon-sidebar is contained.

Slots.

Name Description
Use the unnamed slot to slot any content into the icon-sidebar.

class: SbbIconSidebarLinkElement, sbb-icon-sidebar-link.

Properties.

Name Attribute Privacy Type Default Description
accessibilityCurrent accessibility-current public string '' This will be forwarded as aria-current to the inner anchor element.
accessibilityLabel accessibility-label public string '' This will be forwarded as aria-label to the inner anchor element.
download download public boolean false Whether the browser will show the download dialog on click.
href href public string '' The href value you want to link to.
iconName icon-name public string '' The icon name we want to use, choose from the small icon variants from the ui-icons category from here https://icons.app.sbb.ch.
rel rel public string '' The relationship of the linked URL as space-separated link types.
target target public '_blank' | '_self' | '_parent' | '_top' | string '' Where to display the linked URL.

Slots.

Name Description
icon Slot used to display the icon.