Struct SheetContent 

pub struct SheetContent {
    pub title: Option<String>,
    pub message: Option<String>,
    pub image: Option<Arc<[u8]>>,
    pub actions: Vec<SheetAction>,
}

A sheet’s content — the constrained schema a native sheet renders with platform views only (decision D4): a title, a message, an optional image and up to MAX_SHEET_ACTIONS action rows, laid out top to bottom in that order. Arbitrary frust content is deliberately not accepted: frust has a single render root, and a platform_view slot never mounts inside a presented controller.

Fields

title: Option<String>

A bold headline; None (or empty) omits the row.

message: Option<String>

Body text, wrapped over as many lines as it needs; None (or empty) omits the row.

image: Option<Arc<[u8]>>

Encoded image bytes (PNG/JPEG/HEIC — whatever the platform decodes), shown aspect-fit under the text. Bytes the platform cannot decode omit the row (logged), never fail the sheet.

actions: Vec<SheetAction>

The action rows, in presentation order.

Implementations

impl SheetContent

pub fn new() -> Self

Empty content — add rows with the with_* builders. Presenting it empty is refused (SheetSpec::validate).

pub fn with_title(self, title: impl Into<String>) -> Self

Set the title row.

pub fn with_message(self, message: impl Into<String>) -> Self

Set the message row.

pub fn with_image(self, bytes: impl Into<Arc<[u8]>>) -> Self

Set the image row from encoded bytes.

pub fn with_action( self, id: impl Into<String>, label: impl Into<String>, role: ActionRole, ) -> Self

Append one action row.

Trait Implementations

impl Clone for SheetContent

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SheetContent

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

Formats the value using the given formatter.

impl Default for SheetContent

fn default() -> Self

Returns the “default value” for a type.

impl Eq for SheetContent

impl PartialEq for SheetContent

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SheetContent