zng::widget::node

Struct WhenUiNodeBuilder

pub struct WhenUiNodeBuilder { /* private fields */ }

Expand description

Builds a node that can be one of multiple options, selected by the first condition that is true, or a fallback default.

When the selected node changes the previous one is deinited and the new one is inited.

Implementations§

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impl WhenUiNodeBuilder

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pub fn new(default: impl UiNode) -> WhenUiNodeBuilder

New with node that is used when no condition is active.

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pub fn push(&mut self, condition: impl Var<bool>, node: impl UiNode)

Push a conditional node.

When condition is true and no previous inserted condition is true the node is used.

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pub fn build(self) -> impl UiNode

Build a node that is always the first true condition or the default.

Auto Trait Implementations§

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impl !UnwindSafe for WhenUiNodeBuilder

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