Struct EventCtx 

pub struct EventCtx<'a> {
    pub scale_factor: f64,
    pub modifiers: &'a Modifiers,
    pub state: Edits<'a>,
    pub path: &'a ExId,
    pub handled: &'a mut bool,
    pub focus_target: &'a mut Option<NodeId>,
    pub node_id: NodeId,
    pub taffy: &'a TaffyTree,
}

Host services associated with one retained widget event dispatch.

Fields

scale_factor: f64

modifiers: &'a Modifiers

state: Edits<'a>

path: &'a ExId

handled: &'a mut bool

focus_target: &'a mut Option<NodeId>

node_id: NodeId

taffy: &'a TaffyTree

Implementations

impl EventCtx<'_>

pub fn reborrow<'b>( &'b mut self, path: &'b ExId, node_id: NodeId, ) -> EventCtx<'b>

Reborrow this event for a retained child with its own document path and node.

pub fn edits(&mut self) -> Edits<'_>

The document this event may change, through typed actions only.

pub fn pen(&self) -> Option<PenSample>

The stylus that made the CursorMoved or MouseInput being handled: its pressure, tilt and whether the eraser end is in use. None for a mouse, a touch, or any other event. A pen’s tip is the left button and its barrel buttons the right and middle ones, so a widget needs this only for what a mouse cannot say.

pub fn logical(&self, position: impl Borrow<PhysicalPosition<f64>>) -> Point

position, a pointer position in physical pixels, in this event’s logical coordinates.