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script: Fix MouseOver handling
Now we only query for the topmost node, and apply the hover state to all of the parent elements. This fixes things like #9705, where the hover state was applied only to the children. This also makes us more conformant with other browsers in the case of taking in account margins and paddings. For example, prior to this PR, when your mouse was over the inner element, in the bottom part, `hover` styles didn't apply to the parent. ```html <style> div { padding: 10px; margin: 10px; height: 15px; background: blue; } div:hover { background: red; } </style> <div> <div></div> </div> ``` Fixes #9705
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3 changed files with 22 additions and 21 deletions
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@ -106,6 +106,7 @@ pub trait LayoutRPC {
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fn node_geometry(&self) -> NodeGeometryResponse;
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/// Requests the node containing the point of interest
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fn hit_test(&self, point: Point2D<f32>) -> Result<HitTestResponse, ()>;
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/// Query layout for the topmost node under the mouse.
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fn mouse_over(&self, point: Point2D<f32>) -> Result<MouseOverResponse, ()>;
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/// Query layout for the resolved value of a given CSS property
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fn resolved_style(&self) -> ResolvedStyleResponse;
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@ -139,7 +140,7 @@ pub struct NodeGeometryResponse {
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pub client_rect: Rect<i32>,
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}
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pub struct HitTestResponse(pub UntrustedNodeAddress);
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pub struct MouseOverResponse(pub Vec<UntrustedNodeAddress>);
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pub struct MouseOverResponse(pub UntrustedNodeAddress);
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pub struct ResolvedStyleResponse(pub Option<String>);
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#[derive(Clone)]
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