Struct ScrollableNodeInfo

pub struct ScrollableNodeInfo {
    pub external_id: ExternalScrollId,
    pub content_rect: LayoutRect,
    pub clip_rect: LayoutRect,
    pub scroll_sensitivity: AxesScrollSensitivity,
    pub offset: LayoutVector2D,
    pub offset_changed: Cell<bool>,
}

Data stored for nodes in the ScrollTree that actually scroll, as opposed to reference frames and sticky nodes which do not.

Fields

external_id: ExternalScrollId

The external scroll id of this node, used to track it between successive re-layouts.

content_rect: LayoutRect

The content rectangle for this scroll node;

clip_rect: LayoutRect

The clip rectange for this scroll node.

scroll_sensitivity: AxesScrollSensitivity

Whether this ScrollableNode is sensitive to input events.

offset: LayoutVector2D

The current offset of this scroll node.

offset_changed: Cell<bool>

Whether or not the scroll offset of this node has changed and it needs it’s cached transformations invalidated.

Implementations

impl ScrollableNodeInfo

fn scroll_to_offset( &mut self, new_offset: LayoutVector2D, context: ScrollType, ) -> Option<LayoutVector2D>

fn scroll_to_webrender_location( &mut self, scroll_location: ScrollLocation, context: ScrollType, ) -> Option<LayoutVector2D>

impl ScrollableNodeInfo

fn scrollable_size(&self) -> LayoutSize

Trait Implementations

impl Debug for ScrollableNodeInfo

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ScrollableNodeInfo

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl MallocSizeOf for ScrollableNodeInfo

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl Serialize for ScrollableNodeInfo

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.