script: Move HTML DOM interfaces to script/dom/html/ (#39046)

See #38901.

Testing: Refactor
Fixes: Partially #38901

Signed-off-by: Ashwin Naren <arihant2math@gmail.com>

components/script/dom/html/htmlhrelement.rs

@@ -0,0 +1,171 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use std::str::FromStr;
+
+use dom_struct::dom_struct;
+use html5ever::{LocalName, Prefix, local_name, ns};
+use js::rust::HandleObject;
+use style::attr::{AttrValue, LengthOrPercentageOrAuto};
+use style::color::AbsoluteColor;
+use style::values::generics::NonNegative;
+use style::values::specified::border::BorderSideWidth;
+use style::values::specified::length::Size;
+use style::values::specified::{LengthPercentage, NoCalcLength};
+
+use crate::dom::bindings::codegen::Bindings::HTMLHRElementBinding::HTMLHRElementMethods;
+use crate::dom::bindings::inheritance::Castable;
+use crate::dom::bindings::root::{DomRoot, LayoutDom};
+use crate::dom::bindings::str::DOMString;
+use crate::dom::document::Document;
+use crate::dom::element::{Element, LayoutElementHelpers};
+use crate::dom::html::htmlelement::HTMLElement;
+use crate::dom::node::Node;
+use crate::dom::virtualmethods::VirtualMethods;
+use crate::script_runtime::CanGc;
+
+#[dom_struct]
+pub(crate) struct HTMLHRElement {
+    htmlelement: HTMLElement,
+}
+
+impl HTMLHRElement {
+    fn new_inherited(
+        local_name: LocalName,
+        prefix: Option<Prefix>,
+        document: &Document,
+    ) -> HTMLHRElement {
+        HTMLHRElement {
+            htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
+        }
+    }
+
+    #[cfg_attr(crown, allow(crown::unrooted_must_root))]
+    pub(crate) fn new(
+        local_name: LocalName,
+        prefix: Option<Prefix>,
+        document: &Document,
+        proto: Option<HandleObject>,
+        can_gc: CanGc,
+    ) -> DomRoot<HTMLHRElement> {
+        Node::reflect_node_with_proto(
+            Box::new(HTMLHRElement::new_inherited(local_name, prefix, document)),
+            document,
+            proto,
+            can_gc,
+        )
+    }
+}
+
+impl HTMLHRElementMethods<crate::DomTypeHolder> for HTMLHRElement {
+    // https://html.spec.whatwg.org/multipage/#dom-hr-align
+    make_getter!(Align, "align");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-align
+    make_atomic_setter!(SetAlign, "align");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-color
+    make_getter!(Color, "color");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-color
+    make_legacy_color_setter!(SetColor, "color");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-noshade
+    make_bool_getter!(NoShade, "noshade");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-noshade
+    make_bool_setter!(SetNoShade, "noshade");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-size
+    make_getter!(Size, "size");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-size
+    make_dimension_setter!(SetSize, "size");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-width
+    make_getter!(Width, "width");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-width
+    make_dimension_setter!(SetWidth, "width");
+}
+
+/// The result of applying the the presentational hint for the `size` attribute.
+///
+/// (This attribute can mean different things depending on its value and other attributes)
+#[allow(clippy::enum_variant_names)]
+pub(crate) enum SizePresentationalHint {
+    SetHeightTo(Size),
+    SetAllBorderWidthValuesTo(BorderSideWidth),
+    SetBottomBorderWidthToZero,
+}
+
+pub(crate) trait HTMLHRLayoutHelpers {
+    fn get_color(self) -> Option<AbsoluteColor>;
+    fn get_width(self) -> LengthOrPercentageOrAuto;
+    fn get_size_info(self) -> Option<SizePresentationalHint>;
+}
+
+impl HTMLHRLayoutHelpers for LayoutDom<'_, HTMLHRElement> {
+    fn get_color(self) -> Option<AbsoluteColor> {
+        self.upcast::<Element>()
+            .get_attr_for_layout(&ns!(), &local_name!("color"))
+            .and_then(AttrValue::as_color)
+            .cloned()
+    }
+
+    fn get_width(self) -> LengthOrPercentageOrAuto {
+        self.upcast::<Element>()
+            .get_attr_for_layout(&ns!(), &local_name!("width"))
+            .map(AttrValue::as_dimension)
+            .cloned()
+            .unwrap_or(LengthOrPercentageOrAuto::Auto)
+    }
+
+    fn get_size_info(self) -> Option<SizePresentationalHint> {
+        // https://html.spec.whatwg.org/multipage/#the-hr-element-2
+        let element = self.upcast::<Element>();
+        let size_value = element
+            .get_attr_val_for_layout(&ns!(), &local_name!("size"))
+            .and_then(|value| usize::from_str(value).ok())
+            .filter(|value| *value != 0)?;
+
+        let hint = if element
+            .get_attr_for_layout(&ns!(), &local_name!("color"))
+            .is_some() ||
+            element
+                .get_attr_for_layout(&ns!(), &local_name!("noshade"))
+                .is_some()
+        {
+            SizePresentationalHint::SetAllBorderWidthValuesTo(BorderSideWidth::from_px(
+                size_value as f32 / 2.0,
+            ))
+        } else if size_value == 1 {
+            SizePresentationalHint::SetBottomBorderWidthToZero
+        } else {
+            SizePresentationalHint::SetHeightTo(Size::LengthPercentage(NonNegative(
+                LengthPercentage::Length(NoCalcLength::from_px((size_value - 2) as f32)),
+            )))
+        };
+
+        Some(hint)
+    }
+}
+
+impl VirtualMethods for HTMLHRElement {
+    fn super_type(&self) -> Option<&dyn VirtualMethods> {
+        Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
+    }
+
+    fn parse_plain_attribute(&self, name: &LocalName, value: DOMString) -> AttrValue {
+        match *name {
+            local_name!("align") => AttrValue::from_dimension(value.into()),
+            local_name!("color") => AttrValue::from_legacy_color(value.into()),
+            local_name!("width") => AttrValue::from_dimension(value.into()),
+            _ => self
+                .super_type()
+                .unwrap()
+                .parse_plain_attribute(name, value),
+        }
+    }
+}