Struct ScrollResult 

#[repr(C)]
pub struct ScrollResult {
    pub scrolled_nodes: usize,
    pub remaining_delta: LogicalPosition,
    pub hit_scrollbar: bool,
}

Result of dispatching a scroll delta into the system scroll-handling pipeline.

Returned by process_system_scroll. Higher layers can use the ScrollResult::remaining_delta to forward un-consumed scroll to a parent container, and ScrollResult::hit_scrollbar to distinguish scrollbar-drag scrolling from wheel-on-content scrolling for hit-testing purposes.

Fields

scrolled_nodes: usize

Number of scrollable nodes whose offset was updated by this dispatch.

remaining_delta: LogicalPosition

Delta that could not be consumed (overscroll). May be forwarded to a parent.

hit_scrollbar: bool

true if the dispatch hit a native scrollbar (drag), false for wheel/touch.

Trait Implementations

impl Clone for ScrollResult

fn clone(&self) -> ScrollResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScrollResult

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

Formats the value using the given formatter.

impl Default for ScrollResult

fn default() -> ScrollResult

Returns the “default value” for a type.

impl PartialEq for ScrollResult

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ScrollResult

fn partial_cmp(&self, other: &ScrollResult) -> 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 Copy for ScrollResult

impl StructuralPartialEq for ScrollResult