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Refactor HTMLImageElement::handle_event to be idiomatic

Browse source 
Clean up HTMLImageElement::handle_event

Area::hit_test now uses a reference instead of taking ownership

Fix trailing whitespace

Unalign => in match

Fix Area::hit_test tests to reflect updated function signature
This commit is contained in:
Omar Akkila 2017-07-07 11:42:53 +04:00
parent eec51cdd57
commit 420a7878b9
3 changed files with 37 additions and 39 deletions
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2
components/script/dom/htmlareaelement.rs
View file

@ -167,7 +167,7 @@ impl Area {
}
}
pub fn hit_test(&self, p: Point2D<f32>) -> bool {
pub fn hit_test(&self, p: &Point2D<f32>) -> bool {
match *self {
Area::Circle { left, top, radius } => {
(p.x - left) * (p.x - left) +

62
components/script/dom/htmlimageelement.rs
View file

@ -954,39 +954,37 @@ impl VirtualMethods for HTMLImageElement {
}
fn handle_event(&self, event: &Event) {
if event.type_() == atom!("click") {
let area_elements = self.areas();
let elements = if let Some(x) = area_elements {
x
} else {
if event.type_() != atom!("click") {
return
}
let area_elements = self.areas();
let elements = match area_elements {
Some(x) => x,
None => return,
};
// Fetch click coordinates
let mouse_event = match event.downcast::<MouseEvent>() {
Some(x) => x,
None => return,
};
let point = Point2D::new(mouse_event.ClientX().to_f32().unwrap(),
mouse_event.ClientY().to_f32().unwrap());
let bcr = self.upcast::<Element>().GetBoundingClientRect();
let bcr_p = Point2D::new(bcr.X() as f32, bcr.Y() as f32);
// Walk HTMLAreaElements
for element in elements {
let shape = element.get_shape_from_coords();
let shp = match shape {
Some(x) => x.absolute_coords(bcr_p),
None => return,
};
if shp.hit_test(&point) {
element.activation_behavior(event, self.upcast());
return
};
// Fetch click coordinates
let mouse_event = if let Some(x) = event.downcast::<MouseEvent>() {
x
} else {
return;
};
let point = Point2D::new(mouse_event.ClientX().to_f32().unwrap(),
mouse_event.ClientY().to_f32().unwrap());
// Walk HTMLAreaElements
for element in elements {
let shape = element.get_shape_from_coords();
let p = Point2D::new(self.upcast::<Element>().GetBoundingClientRect().X() as f32,
self.upcast::<Element>().GetBoundingClientRect().Y() as f32);
let shp = if let Some(x) = shape {
x.absolute_coords(p)
} else {
return
};
if shp.hit_test(point) {
element.activation_behavior(event, self.upcast());
return
}
}
}
}