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Improve inter-document focus handling (#36649)

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*Describe the changes that this pull request makes here. This will be
the commit message.*
rewritten the PR #28571
Implement
[Window#focus](https://html.spec.whatwg.org/multipage/#dom-window-focus),
[Window#blur](https://html.spec.whatwg.org/multipage/#dom-window-blur)
Testing: WPT
Fixes: #8981 #9421

---------

Signed-off-by: kongbai1996 <1782765876@qq.com>
Co-authored-by: yvt <i@yvt.jp>
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Fuguo 2025-04-30 12:37:53 +08:00 • committed by GitHub
parent 27570987fd
commit 0c0ee04b8e
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33 changed files with 1123 additions and 242 deletions
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26
components/script/dom/window.rs
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@ -787,6 +787,32 @@ impl WindowMethods<crate::DomTypeHolder> for Window {
doc.abort(can_gc);
}
/// <https://html.spec.whatwg.org/multipage/#dom-window-focus>
fn Focus(&self) {
// > 1. Let `current` be this `Window` object's browsing context.
// >
// > 2. If `current` is null, then return.
let current = match self.undiscarded_window_proxy() {
Some(proxy) => proxy,
None => return,
};
// > 3. Run the focusing steps with `current`.
current.focus();
// > 4. If current is a top-level browsing context, user agents are
// > encouraged to trigger some sort of notification to indicate to
// > the user that the page is attempting to gain focus.
//
// TODO: Step 4
}
// https://html.spec.whatwg.org/multipage/#dom-window-blur
fn Blur(&self) {
// > User agents are encouraged to ignore calls to this `blur()` method
// > entirely.
}
// https://html.spec.whatwg.org/multipage/#dom-open
fn Open(
&self,