Enum Node 

pub enum Node {
    Row(Row),
    Column(Column),
    Align(Align),
    FocusScope(FocusScope),
    Clip(Clip),
    Text(Text),
    Transform(Transform),
    Button(Button),
    TextInput(TextInput),
    Scroll(Scroll),
    Image(Image),
    Video(Video),
    ZStack(ZStack),
    Overlay(Overlay),
    Container(Container),
    GestureDetector(GestureDetector),
    Grid(Grid),
    GridItem(GridItem),
    Checkbox(Checkbox),
    Switch(Switch),
    Radio(Radio),
    SafeArea(SafeArea),
    Positioned(Positioned),
    Spacer(Spacer),
    Slider(Slider),
    LazyColumn(LazyColumn),
    Icon(Icon),
    Custom(CustomNode),
}

A serialisable node in the declarative widget tree.

Every variant wraps one of the built-in widget structs. The tree is constructed by Widget::build and lowered into the fission-ir intermediate representation for layout and rendering.

Example

let tree = Node::Column(Column {
    children: vec![
        Node::Text(Text::new("Hello")),
        Node::Button(Button {
            child: Some(Box::new(Node::Text(Text::new("Click me")))),
            on_press: Some(envelope),
            ..Default::default()
        }),
    ],
    ..Default::default()
});

Variants

Row(Row)

Horizontal flex container. See Row.

Column(Column)

Vertical flex container. See Column.

Align(Align)

Center-aligns its child within the available space. See Align.

FocusScope(FocusScope)

Limits focus traversal to a subtree. See FocusScope.

Clip(Clip)

Clips child content to a rounded rectangle. See Clip.

Text(Text)

Static or i18n text label. See Text.

Transform(Transform)

Applies a 4x4 matrix transform. See Transform.

Button(Button)

Pressable button with variant styling. See Button.

TextInput(TextInput)

Editable text field with optional syntax-highlighting. See TextInput.

Scroll(Scroll)

Scrollable container. See Scroll.

Image(Image)

Raster image. See Image.

Video(Video)

Platform-native video player. See Video.

ZStack(ZStack)

Z-axis stacking container (children layered on top of each other). See ZStack.

Overlay(Overlay)

Content with an overlay layer on top. See Overlay.

Container(Container)

Universal wrapper with background, border, padding, and size. See Container.

GestureDetector(GestureDetector)

Gesture handler (tap, drag, hover, drop). See GestureDetector.

Grid(Grid)

CSS-grid-style layout. See Grid.

GridItem(GridItem)

A child placed within a Grid. See GridItem.

Checkbox(Checkbox)

Boolean toggle with a square indicator. See Checkbox.

Switch(Switch)

Boolean toggle with a sliding thumb. See Switch.

Radio(Radio)

Single-select radio button. See Radio.

SafeArea(SafeArea)

Insets content to avoid system chrome (notch, status bar). See SafeArea.

Positioned(Positioned)

Absolutely positioned child within a ZStack. See Positioned.

Spacer(Spacer)

Flexible or fixed-size empty space. See Spacer.

Slider(Slider)

Continuous value selector with a draggable thumb. See Slider.

LazyColumn(LazyColumn)

Virtualized vertical list for large data sets. See LazyColumn.

Icon(Icon)

Vector icon rendered from an SVG path, file, or inline content. See Icon.

Custom(CustomNode)

Escape hatch for application-defined widgets with custom lowering. See CustomNode.

Implementations

impl Node

pub fn lower(&self, cx: &mut LoweringContext<'_>) -> NodeId

Trait Implementations

impl Clone for Node

fn clone(&self) -> Node

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Node

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Node

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<Align> for Node

fn from(w: Align) -> Self

Converts to this type from the input type.

impl From<Button> for Node

fn from(w: Button) -> Self

Converts to this type from the input type.

impl From<Checkbox> for Node

fn from(w: Checkbox) -> Self

Converts to this type from the input type.

impl From<Clip> for Node

fn from(w: Clip) -> Self

Converts to this type from the input type.

impl From<Column> for Node

fn from(w: Column) -> Self

Converts to this type from the input type.

impl From<Container> for Node

fn from(w: Container) -> Self

Converts to this type from the input type.

impl From<FocusScope> for Node

fn from(w: FocusScope) -> Self

Converts to this type from the input type.

impl From<GestureDetector> for Node

fn from(w: GestureDetector) -> Self

Converts to this type from the input type.

impl From<Grid> for Node

fn from(w: Grid) -> Self

Converts to this type from the input type.

impl From<GridItem> for Node

fn from(w: GridItem) -> Self

Converts to this type from the input type.

impl From<Icon> for Node

fn from(w: Icon) -> Self

Converts to this type from the input type.

impl From<Image> for Node

fn from(w: Image) -> Self

Converts to this type from the input type.

impl From<LazyColumn> for Node

fn from(w: LazyColumn) -> Self

Converts to this type from the input type.

impl From<Overlay> for Node

fn from(w: Overlay) -> Self

Converts to this type from the input type.

impl From<Positioned> for Node

fn from(w: Positioned) -> Self

Converts to this type from the input type.

impl From<Radio> for Node

fn from(w: Radio) -> Self

Converts to this type from the input type.

impl From<Row> for Node

fn from(w: Row) -> Self

Converts to this type from the input type.

impl From<SafeArea> for Node

fn from(w: SafeArea) -> Self

Converts to this type from the input type.

impl From<Scroll> for Node

fn from(w: Scroll) -> Self

Converts to this type from the input type.

impl From<Slider> for Node

fn from(w: Slider) -> Self

Converts to this type from the input type.

impl From<Spacer> for Node

fn from(w: Spacer) -> Self

Converts to this type from the input type.

impl From<Switch> for Node

fn from(w: Switch) -> Self

Converts to this type from the input type.

impl From<Text> for Node

fn from(w: Text) -> Self

Converts to this type from the input type.

impl From<TextInput> for Node

fn from(w: TextInput) -> Self

Converts to this type from the input type.

impl From<Transform> for Node

fn from(w: Transform) -> Self

Converts to this type from the input type.

impl From<ZStack> for Node

fn from(w: ZStack) -> Self

Converts to this type from the input type.

impl Serialize for Node

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<S: AppState> Widget<S> for Node

fn build(&self, _ctx: &mut BuildCtx<S>, _view: &View<'_, S>) -> Node

Build the widget’s node tree.