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script: Expose NodeTraits::owner_global / Window::as_global_scope (#34843)

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Expose two new helpers and start using them as much as possible.

- `NodeTraits::owner_global`: which gets the `GlobalScope` that currenty
 owns a `Node`. This may be different than `.global()` in the case that
 the `Node` was adopted by a different `Document`.
- `Window::as_global_scope`: A helper to avoid having to cast so much
  when treating a `Window` like a `GlobalScope`.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
This commit is contained in:
Martin Robinson 2025-01-07 10:56:02 +01:00 • committed by GitHub
parent 17e2ca3f01
commit e42b4b793d
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GPG key ID: B5690EEEBB952194
33 changed files with 262 additions and 258 deletions
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11
components/script/dom/htmlcanvaselement.rs
View file

@ -42,7 +42,6 @@ use crate::dom::canvasrenderingcontext2d::{
};
use crate::dom::document::Document;
use crate::dom::element::{AttributeMutation, Element, LayoutElementHelpers};
use crate::dom::globalscope::GlobalScope;
#[cfg(not(feature = "webgpu"))]
use crate::dom::gpucanvascontext::GPUCanvasContext;
use crate::dom::htmlelement::HTMLElement;
@ -197,9 +196,10 @@ impl HTMLCanvasElement {
_ => None,
};
}
let window = self.owner_window();
let size = self.get_size();
let context = CanvasRenderingContext2D::new(window.upcast::<GlobalScope>(), self, size);
let context = CanvasRenderingContext2D::new(window.as_global_scope(), self, size);
*self.context.borrow_mut() = Some(CanvasContext::Context2d(Dom::from_ref(&*context)));
Some(context)
}
@ -271,16 +271,15 @@ impl HTMLCanvasElement {
};
}
let (sender, receiver) = ipcchan::channel().unwrap();
let _ = self
.global()
let global_scope = self.owner_global();
let _ = global_scope
.script_to_constellation_chan()
.send(ScriptMsg::GetWebGPUChan(sender));
receiver
.recv()
.expect("Failed to get WebGPU channel")
.map(|channel| {
let window = self.owner_window();
let context = GPUCanvasContext::new(window.upcast::<GlobalScope>(), self, channel);
let context = GPUCanvasContext::new(&global_scope, self, channel);
*self.context.borrow_mut() = Some(CanvasContext::WebGPU(Dom::from_ref(&*context)));
context
})