xengui 0.2.2

xengui: a reactive gui library in rust
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// SPDX-License-Identifier: Apache-2.0

pub trait WidgetContent: Sized {
    fn with_content(self, content: impl Into<smol_str::SmolStr>) -> Self;
}

impl WidgetContent for crate::Label {
    fn with_content(self, content: impl Into<smol_str::SmolStr>) -> Self {
        self.label(content)
    }
}

/// ```ignore
/// view! {
///     View {
///         width: 400,
///         height: 300,
///         padding: 20,
///         background: Color::BLACK,
///         Text("Hello"),
///         View { flex_direction: FlexDirection::Row, Text("World") }
///     }
/// }
/// ```
#[macro_export]
macro_rules! view {
    ($widget:ident { $($rest:tt)* }) => {
        $crate::view_props!( $widget::new() ; $($rest)* )
    };
    ($widget:ident ( $content:expr )) => {
        $crate::WidgetContent::with_content($widget::new(), $content)
    };
}

#[macro_export]
macro_rules! view_props {
    ($acc:expr ;) => { $acc };

    // prop: expr
    ($acc:expr ; $key:ident : $val:expr) => {
        $acc.$key($val)
    };
    // prop: expr
    ($acc:expr ; $key:ident : $val:expr , $($rest:tt)*) => {
        $crate::view_props!( $acc.$key($val) ; $($rest)* )
    };

    // Child { ... }
    ($acc:expr ; $widget:ident { $($inner:tt)* }) => {{
        let mut __parent = $acc;
        let __child = $crate::view_props!( $widget::new() ; $($inner)* );
        __parent = __parent.child(__child);
        __parent
    }};
    // Child { ... }
    ($acc:expr ; $widget:ident { $($inner:tt)* } , $($rest:tt)*) => {
        $crate::view_props!({
            let mut __parent = $acc;
            let __child = $crate::view_props!( $widget::new() ; $($inner)* );
            __parent = __parent.child(__child);
            __parent
        } ; $($rest)*)
    };

    // Child(expr)
    ($acc:expr ; $widget:ident ( $content:expr )) => {{
        let mut __parent = $acc;
        let __child = $crate::WidgetContent::with_content($widget::new(), $content);
        __parent = __parent.child(__child);
        __parent
    }};
    // Child(expr)
    ($acc:expr ; $widget:ident ( $content:expr ) , $($rest:tt)*) => {
        $crate::view_props!({
            let mut __parent = $acc;
            let __child = $crate::WidgetContent::with_content($widget::new(), $content);
            __parent = __parent.child(__child);
            __parent
        } ; $($rest)*)
    };
}