Struct Notification 

pub struct Notification {
    id: Id,
    rect: Rectangle,
    children: Vec<Box<dyn View>>,
    text: String,
    max_width: i32,
    index: u8,
    view_id: ViewId,
    progress: Option<u8>,
}

A notification view that displays temporary or persistent messages.

Notifications can either auto-dismiss after 4 seconds (standard notifications) or persist until manually dismissed (pinned notifications). Pinned notifications can also display an optional progress bar for long-running operations.

Notifications are positioned in a 3x2 grid at the top of the screen, alternating between left and right sides to avoid overlapping.

Fields

id: Id

rect: Rectangle

children: Vec<Box<dyn View>>

text: String

max_width: i32

index: u8

view_id: ViewId

progress: Option<u8>

Implementations

impl Notification

pub fn new( view_id: Option<ViewId>, text: String, pinned: bool, hub: &Hub, rq: &mut RenderQueue, context: &mut Context, ) -> Notification

Creates a new notification.

Arguments

• view_id - Optional ViewId for the notification. If None, generates a new one.
• text - The message to display
• pinned - If false, notification auto-dismisses after 4 seconds. If true, persists until dismissed.
• hub - Event hub for sending close events
• rq - Render queue for scheduling display updates
• context - Application context containing fonts, display dimensions, and notification index

Returns

A new Notification instance with progress initialized to None.

pub fn update_text(&mut self, text: String, rq: &mut RenderQueue)

Updates the text content of the notification and schedules a re-render.

Arguments

• text - The new message text to display
• rq - Render queue for scheduling the display update

Note

This method does not recalculate the notification’s position or size. The text will be re-wrapped within the existing notification bounds.

pub fn update_progress(&mut self, progress: u8, rq: &mut RenderQueue)

Updates the progress percentage of the notification and schedules a re-render.

Arguments

• progress - Progress percentage (0-100). Values outside this range will be clamped during rendering.
• rq - Render queue for scheduling the display update

Note

The progress bar is displayed as a thin horizontal line below the text. Setting progress to None via direct field access will hide the progress bar.

Trait Implementations

impl View for Notification

fn handle_event( &mut self, evt: &Event, _hub: &Hub, _bus: &mut Bus, _rq: &mut RenderQueue, _context: &mut Context, ) -> bool

fn render(&self, fb: &mut dyn Framebuffer, _rect: Rectangle, fonts: &mut Fonts)

fn resize( &mut self, _rect: Rectangle, _hub: &Hub, _rq: &mut RenderQueue, context: &mut Context, )

fn rect(&self) -> &Rectangle

fn rect_mut(&mut self) -> &mut Rectangle

fn children(&self) -> &Vec<Box<dyn View>>

fn children_mut(&mut self) -> &mut Vec<Box<dyn View>>

fn id(&self) -> Id

fn view_id(&self) -> Option<ViewId>

fn render_rect(&self, _rect: &Rectangle) -> Rectangle

fn child(&self, index: usize) -> &dyn View

fn child_mut(&mut self, index: usize) -> &mut dyn View

fn len(&self) -> usize

fn might_skip(&self, _evt: &Event) -> bool

fn might_rotate(&self) -> bool

fn is_background(&self) -> bool