Enum StyleSpatialNavigationAction 

#[repr(C)]
pub enum StyleSpatialNavigationAction {
    Auto = 0,
    Focus = 1,
    Scroll = 2,
}

spatial-navigation-action - what an arrow key does on a scroll container.

.map     { spatial-navigation-action: scroll; }  /* arrows always pan   */
.menu    { spatial-navigation-action: focus; }   /* arrows never scroll */

The default is Auto, which is the ordered fallback 9a-i-a implements: move focus if there is somewhere to move it, otherwise scroll.

NOT INHERITED. The property answers “what does an arrow do when THIS element is the scroll container”, and a container that pans is routinely full of ordinary focusable controls that must keep behaving normally - inheriting scroll into them would make every button inside a map unreachable by keyboard.

Variants

Auto = 0

Move focus if a candidate lies in that direction; otherwise scroll.

Focus = 1

Always move focus. If there is no candidate the container does NOT scroll - the search continues outward instead, so an arrow at the edge of a menu escapes it rather than nudging it.

Scroll = 2

Always scroll, changing nothing about focus, even when focusable children are sitting right there. What a map, a canvas or a code editor wants.

Trait Implementations

impl Clone for StyleSpatialNavigationAction

fn clone(&self) -> StyleSpatialNavigationAction

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for StyleSpatialNavigationAction

impl Debug for StyleSpatialNavigationAction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for StyleSpatialNavigationAction

fn default() -> StyleSpatialNavigationAction

Returns the “default value” for a type.

impl Eq for StyleSpatialNavigationAction

impl FormatAsRustCode for StyleSpatialNavigationAction

fn format_as_rust_code(&self, _tabs: usize) -> String

impl From<StyleSpatialNavigationAction> for CssProperty

fn from(e: StyleSpatialNavigationAction) -> Self

Converts to this type from the input type.

impl Hash for StyleSpatialNavigationAction

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for StyleSpatialNavigationAction

fn cmp(&self, other: &StyleSpatialNavigationAction) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for StyleSpatialNavigationAction

fn eq(&self, other: &StyleSpatialNavigationAction) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for StyleSpatialNavigationAction

fn partial_cmp(&self, other: &StyleSpatialNavigationAction) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl PrintAsCssValue for StyleSpatialNavigationAction

fn print_as_css_value(&self) -> String

impl StructuralPartialEq for StyleSpatialNavigationAction