nav-content

shadow

The content component provides an easy to use content area with some useful methods to control the scrollable area. There should only be one content in a single view.

Content, along with many other Navify components, can be customized to modify its padding, margin, and more using the global styles provided in the CSS Utilities or by individually styling it using CSS and the available CSS Custom Properties.

Basic Usage

Header & Footer

Content can be the only top-level component in a page, or it can be used alongside a header, footer, or both. When used with a header or footer, it will adjust its size to fill the remaining height.

Fullscreen Content

By default, content fills the space between a header and footer but does not go behind them. In certain cases, it may be desired to have the content scroll behind the header and footer, such as when the translucent property is set on either of them, or opacity is set on the toolbar. This can be achieved by setting the fullscreen property on the content to true.

Fixed Content

To place elements outside of the scrollable area, assign them to the fixed slot. Doing so will absolutely position the element to the top left of the content. In order to change the position of the element, it can be styled using the top, right, bottom, and left CSS properties.

Scroll Methods

Content provides methods that can be called to scroll the content to the bottom, top, or to a specific point. They can be passed a duration in order to smoothly transition instead of instantly changing the position.

Scroll Events

Scroll events are disabled by default for content due to performance. However, they can be enabled by setting scrollEvents to true. This is necessary before listening to any of the scroll events.

Theming

Colors

CSS Shadow Parts

CSS Custom Properties

Interfaces

ScrollBaseDetail

interface ScrollBaseDetail {
  isScrolling: boolean;
}

ScrollDetail

interface ScrollDetail extends GestureDetail, ScrollBaseDetail {
  scrollTop: number;
  scrollLeft: number;
}

ScrollBaseCustomEvent

While not required, this interface can be used in place of the CustomEvent interface for stronger typing on the navScrollStart and navScrollEnd events.

interface ScrollBaseCustomEvent extends CustomEvent {
  detail: ScrollBaseDetail;
  target: HTMLNavContentElement;
}

ScrollCustomEvent

While not required, this interface can be used in place of the CustomEvent interface for stronger typing on the navScroll event.

interface ScrollCustomEvent extends ScrollBaseCustomEvent {
  detail: ScrollDetail;
}

Properties

color

Description	The color to use from your application's color palette. Default options are: "primary", "secondary", "tertiary", "success", "warning", "danger", "light", "medium", and "dark". For more information on colors, see theming.
Attribute	color
Type	"danger" ｜ "dark" ｜ "light" ｜ "medium" ｜ "primary" ｜ "secondary" ｜ "success" ｜ "tertiary" ｜ "warning" ｜ string & Record<never, never> ｜ undefined
Default	undefined

forceOverscroll

Description	If true and the content does not cause an overflow scroll, the scroll interaction will cause a bounce. If the content exceeds the bounds of navContent, nothing will change. Note, the does not disable the system bounce on iOS. That is an OS level setting.
Attribute	force-overscroll
Type	boolean ｜ undefined
Default	undefined

fullscreen

Description	If true, the content will scroll behind the headers and footers. This effect can easily be seen by setting the toolbar to transparent.
Attribute	fullscreen
Type	boolean
Default	false

scrollEvents

Description	Because of performance reasons, navScroll events are disabled by default, in order to enable them and start listening from (navScroll), set this property to true.
Attribute	scroll-events
Type	boolean
Default	false

scrollX

Description	If you want to enable the content scrolling in the X axis, set this property to true.
Attribute	scroll-x
Type	boolean
Default	false

scrollY

Description	If you want to disable the content scrolling in the Y axis, set this property to false.
Attribute	scroll-y
Type	boolean
Default	true

Events

Name	Description
navScroll	Emitted while scrolling. This event is disabled by default. Set scrollEvents to true to enable.
navScrollEnd	Emitted when the scroll has ended. This event is disabled by default. Set scrollEvents to true to enable.
navScrollStart	Emitted when the scroll has started. This event is disabled by default. Set scrollEvents to true to enable.

Methods

getScrollElement

Description	Get the element where the actual scrolling takes place. This element can be used to subscribe to scroll events or manually modify scrollTop. However, it's recommended to use the API provided by nav-content: i.e. Using navScroll, navScrollStart, navScrollEnd for scrolling events and scrollToPoint() to scroll the content into a certain point.
Signature	getScrollElement() => Promise<HTMLElement>

scrollByPoint

Description	Scroll by a specified X/Y distance in the component.
Signature	scrollByPoint(x: number, y: number, duration: number) => Promise<void>

scrollToBottom

Description	Scroll to the bottom of the component.
Signature	scrollToBottom(duration?: number) => Promise<void>

scrollToPoint

Description	Scroll to a specified X/Y location in the component.
Signature	scrollToPoint(x: number ｜ undefined ｜ null, y: number ｜ undefined ｜ null, duration?: number) => Promise<void>

scrollToTop

Description	Scroll to the top of the component.
Signature	scrollToTop(duration?: number) => Promise<void>

CSS Shadow Parts

Name	Description
background	The background of the content.
scroll	The scrollable container of the content.

CSS Custom Properties

Name	Description
--background	Background of the content
--color	Color of the content
--keyboard-offset	Keyboard offset of the content
--offset-bottom	Offset bottom of the content
--offset-top	Offset top of the content
--padding-bottom	Bottom padding of the content
--padding-end	Right padding if direction is left-to-right, and left padding if direction is right-to-left of the content
--padding-start	Left padding if direction is left-to-right, and right padding if direction is right-to-left of the content
--padding-top	Top padding of the content

Slots

Name	Description
``	Content is placed in the scrollable area if provided without a slot.
fixed	Should be used for fixed content that should not scroll.