Struct rui::Handle

pub struct Handle<V, F, A> { /* private fields */ }

Struct for an action handler.

Implementations

impl<V, F, A> Handle<V, F, A>where V: View, F: Fn(&mut Context, &A) + 'static,

pub fn new(v: V, f: F) -> Self

Trait Implementations

impl<V, F, A> View for Handle<V, F, A>where V: View, F: Fn(&mut Context, &A) + 'static, A: 'static,

fn process( &self, event: &Event, vid: ViewId, cx: &mut Context, actions: &mut Vec<Box<dyn Any>> )

Processes an event.

fn draw(&self, id: ViewId, args: &mut DrawArgs<'_>)

Draws the view using vger.

fn layout(&self, id: ViewId, args: &mut LayoutArgs<'_>) -> LocalSize

Lays out subviews and return the size of the view.

fn hittest( &self, id: ViewId, pt: LocalPoint, cx: &mut Context ) -> Option<ViewId>

Returns the topmost view which the point intersects.

fn commands(&self, id: ViewId, cx: &mut Context, cmds: &mut Vec<CommandInfo>)

Accumulates information about menu bar commands.

fn gc(&self, id: ViewId, cx: &mut Context, map: &mut Vec<ViewId>)

Gets IDs for views currently in use.

fn access( &self, id: ViewId, cx: &mut Context, nodes: &mut Vec<(NodeId, Node)> ) -> Option<NodeId>

Builds an AccessKit tree. The node ID for the subtree is returned. All generated nodes are accumulated.

fn dirty(&self, _id: ViewId, _xform: LocalToWorld, _cx: &mut Context)

Determines dirty regions which need repainting.

fn is_flexible(&self) -> bool

For detecting flexible sized things in stacks.

fn tid(&self) -> TypeId

Returns the type ID of the underlying view.