Enum Node 

pub enum Node {
    Stack {
        style: StackStyle,
        children: Nodes,
        scrolls: bool,
    },
    Label {
        text: Rc<Dynamic>,
        style: LabelStyle,
    },
    Button {
        title: Rc<Dynamic>,
        style: ButtonStyle,
        icon: Icon,
        selected: Option<Rc<Dynamic>>,
        action: Block,
    },
    TextField {
        value: Rc<Binding>,
        placeholder: String,
        lines: u32,
        action: Option<Block>,
    },
    Checkbox {
        checked: Rc<Binding>,
        title: Option<Rc<Dynamic>>,
        style: ToggleStyle,
    },
    Slider {
        value: Rc<Binding>,
        min: i64,
        max: i64,
    },
    Picker {
        selection: Rc<Binding>,
        options: Rc<Dynamic>,
        deps: StateSet,
    },
    NavItem(NavItem),
    Image {
        path: Rc<Dynamic>,
        size: ImageSize,
    },
    Progress {
        value: Option<Rc<Dynamic>>,
    },
    Spacer,
    Divider,
    ContextMenu {
        entries: Vec<MenuEntry<Block>>,
    },
    DropTarget {
        dropped: Rc<Binding>,
        action: Option<Block>,
    },
    If {
        branches: Vec<(Rc<Expr>, Nodes)>,
        otherwise: Nodes,
        deps: StateSet,
    },
    For {
        head: Rc<Loop>,
        body: Nodes,
        deps: StateSet,
    },
    View {
        view: ViewId,
        args: Rc<[Expr]>,
        deps: StateSet,
    },
}

UI parts are shared, so whatever runs the program can keep them for as long as it shows them.

Variants

Stack

A column or row, or, when it scrolls, a scroll area.

Fields

style: StackStyle

children: Nodes

scrolls: bool

Label

Fields

text: Rc<Dynamic>

style: LabelStyle

Button

Shown as selected while selected holds, when it has one.

Fields

title: Rc<Dynamic>

style: ButtonStyle

icon: Icon

selected: Option<Rc<Dynamic>>

action: Block

TextField

Edits text on one line, or wraps it over lines lines and scrolls it. A one-line field with an action runs it on Return.

Fields

value: Rc<Binding>

placeholder: String

lines: u32

action: Option<Block>

Checkbox

A checkbox, or a switch, by its style.

Fields

checked: Rc<Binding>

title: Option<Rc<Dynamic>>

style: ToggleStyle

Slider

Picks a whole number from min to max.

Fields

value: Rc<Binding>

min: i64

max: i64

Picker

Picks one of options into selection.

Fields

selection: Rc<Binding>

options: Rc<Dynamic>

deps: StateSet

What it shows depends on: its options and its selection.

NavItem(NavItem)

Image

The image in the file at path, shown at size.

Fields

path: Rc<Dynamic>

size: ImageSize

Progress

A progress bar showing value percent done, or that work is under way when it has no value.

Fields

value: Option<Rc<Dynamic>>

Spacer

Divider

ContextMenu

A menu shown when the stack it is in is right-clicked.

Fields

entries: Vec<MenuEntry<Block>>

DropTarget

Takes files and links dropped on the stack it is in: writes their paths and addresses to dropped, then runs action, if it has one.

Fields

dropped: Rc<Binding>

action: Option<Block>

If

Rebuilt when deps change; the first branch whose condition holds is shown.

Fields

branches: Vec<(Rc<Expr>, Nodes)>

otherwise: Nodes

deps: StateSet

For

Rebuilt when deps change; body is shown once per element.

Fields

head: Rc<Loop>

body: Nodes

deps: StateSet

View

Rebuilt when deps change; the arguments fill the view’s parameters.

Fields

view: ViewId

args: Rc<[Expr]>

deps: StateSet

Trait Implementations

impl Debug for Node

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

Formats the value using the given formatter.