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Pass a WindowContext in request_measured_layout

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Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This commit is contained in:
Antonio Scandurra 2023-11-30 17:12:40 +01:00
parent d9b8c07b1e
commit 5243401afa
5 changed files with 42 additions and 26 deletions
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27
crates/gpui2/src/window.rs
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@ -209,7 +209,7 @@ pub struct Window {
sprite_atlas: Arc<dyn PlatformAtlas>,
rem_size: Pixels,
viewport_size: Size<Pixels>,
pub(crate) layout_engine: TaffyLayoutEngine,
layout_engine: Option<TaffyLayoutEngine>,
pub(crate) root_view: Option<AnyView>,
pub(crate) element_id_stack: GlobalElementId,
pub(crate) previous_frame: Frame,
@ -327,7 +327,7 @@ impl Window {
sprite_atlas,
rem_size: px(16.),
viewport_size: content_size,
layout_engine: TaffyLayoutEngine::new(),
layout_engine: Some(TaffyLayoutEngine::new()),
root_view: None,
element_id_stack: GlobalElementId::default(),
previous_frame: Frame::new(DispatchTree::new(cx.keymap.clone(), cx.actions.clone())),
@ -606,9 +606,11 @@ impl<'a> WindowContext<'a> {
self.app.layout_id_buffer.extend(children.into_iter());
let rem_size = self.rem_size();
self.window
.layout_engine
.request_layout(style, rem_size, &self.app.layout_id_buffer)
self.window.layout_engine.as_mut().unwrap().request_layout(
style,
rem_size,
&self.app.layout_id_buffer,
)
}
/// Add a node to the layout tree for the current frame. Instead of taking a `Style` and children,
@ -618,7 +620,8 @@ impl<'a> WindowContext<'a> {
/// The given closure is invoked at layout time with the known dimensions and available space and
/// returns a `Size`.
pub fn request_measured_layout<
F: FnMut(Size<Option<Pixels>>, Size<AvailableSpace>) -> Size<Pixels> + 'static,
F: FnMut(Size<Option<Pixels>>, Size<AvailableSpace>, &mut WindowContext) -> Size<Pixels>
+ 'static,
>(
&mut self,
style: Style,
@ -627,13 +630,15 @@ impl<'a> WindowContext<'a> {
let rem_size = self.rem_size();
self.window
.layout_engine
.as_mut()
.unwrap()
.request_measured_layout(style, rem_size, measure)
}
pub fn compute_layout(&mut self, layout_id: LayoutId, available_space: Size<AvailableSpace>) {
self.window
.layout_engine
.compute_layout(layout_id, available_space)
let mut layout_engine = self.window.layout_engine.take().unwrap();
layout_engine.compute_layout(layout_id, available_space, self);
self.window.layout_engine = Some(layout_engine);
}
/// Obtain the bounds computed for the given LayoutId relative to the window. This method should not
@ -643,6 +648,8 @@ impl<'a> WindowContext<'a> {
let mut bounds = self
.window
.layout_engine
.as_mut()
.unwrap()
.layout_bounds(layout_id)
.map(Into::into);
bounds.origin += self.element_offset();
@ -1189,7 +1196,7 @@ impl<'a> WindowContext<'a> {
self.text_system().start_frame();
let window = &mut *self.window;
window.layout_engine.clear();
window.layout_engine.as_mut().unwrap().clear();
mem::swap(&mut window.previous_frame, &mut window.current_frame);
let frame = &mut window.current_frame;