floem 0.2.0

A native Rust UI library with fine-grained reactivity
Documentation 
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use floem_winit::window::ResizeDirection;

use crate::{
    action::drag_resize_window,
    event::EventListener,
    id::ViewId,
    style::CursorStyle,
    view::{IntoView, View},
};

use super::Decorators;

/// A view that will resize the window when the mouse is dragged. See [`drag_resize_window_area`].
///
/// ## Platform-specific
///
/// - **macOS:** Not supported.
/// - **iOS / Android / Web / Orbital:** Not supported.
pub struct DragResizeWindowArea {
    id: ViewId,
}

/// A view that will resize the window when the mouse is dragged.
///
/// ## Platform-specific
///
/// - **macOS:** Not supported.
/// - **iOS / Android / Web / Orbital:** Not supported.
pub fn drag_resize_window_area<V: IntoView + 'static>(
    direction: ResizeDirection,
    child: V,
) -> DragResizeWindowArea {
    let id = ViewId::new();
    id.set_children(vec![child.into_view()]);
    DragResizeWindowArea { id }
        .on_event_stop(EventListener::PointerDown, move |_| {
            drag_resize_window(direction)
        })
        .style(move |s| {
            let cursor = match direction {
                ResizeDirection::East => CursorStyle::ColResize,
                ResizeDirection::West => CursorStyle::ColResize,
                ResizeDirection::North => CursorStyle::RowResize,
                ResizeDirection::South => CursorStyle::RowResize,
                ResizeDirection::NorthEast => CursorStyle::NeswResize,
                ResizeDirection::SouthWest => CursorStyle::NeswResize,
                ResizeDirection::SouthEast => CursorStyle::NwseResize,
                ResizeDirection::NorthWest => CursorStyle::NwseResize,
            };
            s.cursor(cursor)
        })
}

impl View for DragResizeWindowArea {
    fn id(&self) -> ViewId {
        self.id
    }

    fn debug_name(&self) -> std::borrow::Cow<'static, str> {
        "Drag-Resize Window Area".into()
    }
}