diff options
Diffstat (limited to 'components/script/dom/virtualmethods.rs')
| -rw-r--r-- | components/script/dom/virtualmethods.rs | 318 |
1 files changed, 168 insertions, 150 deletions
diff --git a/components/script/dom/virtualmethods.rs b/components/script/dom/virtualmethods.rs index 8ff47f9ced5..9f175d8d621 100644 --- a/components/script/dom/virtualmethods.rs +++ b/components/script/dom/virtualmethods.rs @@ -1,57 +1,60 @@ /* 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 http://mozilla.org/MPL/2.0/. */ + * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ -use dom::attr::Attr; -use dom::bindings::inheritance::Castable; -use dom::bindings::inheritance::ElementTypeId; -use dom::bindings::inheritance::HTMLElementTypeId; -use dom::bindings::inheritance::NodeTypeId; -use dom::bindings::inheritance::SVGElementTypeId; -use dom::bindings::inheritance::SVGGraphicsElementTypeId; -use dom::bindings::str::DOMString; -use dom::document::Document; -use dom::element::{AttributeMutation, Element}; -use dom::event::Event; -use dom::htmlanchorelement::HTMLAnchorElement; -use dom::htmlappletelement::HTMLAppletElement; -use dom::htmlareaelement::HTMLAreaElement; -use dom::htmlbaseelement::HTMLBaseElement; -use dom::htmlbodyelement::HTMLBodyElement; -use dom::htmlbuttonelement::HTMLButtonElement; -use dom::htmlcanvaselement::HTMLCanvasElement; -use dom::htmldetailselement::HTMLDetailsElement; -use dom::htmlelement::HTMLElement; -use dom::htmlfieldsetelement::HTMLFieldSetElement; -use dom::htmlfontelement::HTMLFontElement; -use dom::htmlformelement::HTMLFormElement; -use dom::htmlheadelement::HTMLHeadElement; -use dom::htmlhrelement::HTMLHRElement; -use dom::htmliframeelement::HTMLIFrameElement; -use dom::htmlimageelement::HTMLImageElement; -use dom::htmlinputelement::HTMLInputElement; -use dom::htmllabelelement::HTMLLabelElement; -use dom::htmllielement::HTMLLIElement; -use dom::htmllinkelement::HTMLLinkElement; -use dom::htmlmediaelement::HTMLMediaElement; -use dom::htmlmetaelement::HTMLMetaElement; -use dom::htmlobjectelement::HTMLObjectElement; -use dom::htmloptgroupelement::HTMLOptGroupElement; -use dom::htmloptionelement::HTMLOptionElement; -use dom::htmloutputelement::HTMLOutputElement; -use dom::htmlscriptelement::HTMLScriptElement; -use dom::htmlselectelement::HTMLSelectElement; -use dom::htmlstyleelement::HTMLStyleElement; -use dom::htmltablecellelement::HTMLTableCellElement; -use dom::htmltableelement::HTMLTableElement; -use dom::htmltablerowelement::HTMLTableRowElement; -use dom::htmltablesectionelement::HTMLTableSectionElement; -use dom::htmltemplateelement::HTMLTemplateElement; -use dom::htmltextareaelement::HTMLTextAreaElement; -use dom::htmltitleelement::HTMLTitleElement; -use dom::node::{ChildrenMutation, CloneChildrenFlag, Node, UnbindContext}; -use dom::svgsvgelement::SVGSVGElement; -use html5ever_atoms::LocalName; +use crate::dom::attr::Attr; +use crate::dom::bindings::inheritance::Castable; +use crate::dom::bindings::inheritance::ElementTypeId; +use crate::dom::bindings::inheritance::HTMLElementTypeId; +use crate::dom::bindings::inheritance::HTMLMediaElementTypeId; +use crate::dom::bindings::inheritance::NodeTypeId; +use crate::dom::bindings::inheritance::SVGElementTypeId; +use crate::dom::bindings::inheritance::SVGGraphicsElementTypeId; +use crate::dom::bindings::str::DOMString; +use crate::dom::document::Document; +use crate::dom::element::{AttributeMutation, Element}; +use crate::dom::event::Event; +use crate::dom::htmlanchorelement::HTMLAnchorElement; +use crate::dom::htmlareaelement::HTMLAreaElement; +use crate::dom::htmlbaseelement::HTMLBaseElement; +use crate::dom::htmlbodyelement::HTMLBodyElement; +use crate::dom::htmlbuttonelement::HTMLButtonElement; +use crate::dom::htmlcanvaselement::HTMLCanvasElement; +use crate::dom::htmldetailselement::HTMLDetailsElement; +use crate::dom::htmlelement::HTMLElement; +use crate::dom::htmlfieldsetelement::HTMLFieldSetElement; +use crate::dom::htmlfontelement::HTMLFontElement; +use crate::dom::htmlformelement::HTMLFormElement; +use crate::dom::htmlheadelement::HTMLHeadElement; +use crate::dom::htmlhrelement::HTMLHRElement; +use crate::dom::htmliframeelement::HTMLIFrameElement; +use crate::dom::htmlimageelement::HTMLImageElement; +use crate::dom::htmlinputelement::HTMLInputElement; +use crate::dom::htmllabelelement::HTMLLabelElement; +use crate::dom::htmllielement::HTMLLIElement; +use crate::dom::htmllinkelement::HTMLLinkElement; +use crate::dom::htmlmediaelement::HTMLMediaElement; +use crate::dom::htmlmetaelement::HTMLMetaElement; +use crate::dom::htmlobjectelement::HTMLObjectElement; +use crate::dom::htmloptgroupelement::HTMLOptGroupElement; +use crate::dom::htmloptionelement::HTMLOptionElement; +use crate::dom::htmloutputelement::HTMLOutputElement; +use crate::dom::htmlscriptelement::HTMLScriptElement; +use crate::dom::htmlselectelement::HTMLSelectElement; +use crate::dom::htmlsourceelement::HTMLSourceElement; +use crate::dom::htmlstyleelement::HTMLStyleElement; +use crate::dom::htmltablecellelement::HTMLTableCellElement; +use crate::dom::htmltableelement::HTMLTableElement; +use crate::dom::htmltablerowelement::HTMLTableRowElement; +use crate::dom::htmltablesectionelement::HTMLTableSectionElement; +use crate::dom::htmltemplateelement::HTMLTemplateElement; +use crate::dom::htmltextareaelement::HTMLTextAreaElement; +use crate::dom::htmltitleelement::HTMLTitleElement; +use crate::dom::htmlvideoelement::HTMLVideoElement; +use crate::dom::node::{BindContext, ChildrenMutation, CloneChildrenFlag, Node, UnbindContext}; +use crate::dom::svgelement::SVGElement; +use crate::dom::svgsvgelement::SVGSVGElement; +use html5ever::LocalName; use style::attr::AttrValue; /// Trait to allow DOM nodes to opt-in to overriding (or adding to) common @@ -59,17 +62,26 @@ use style::attr::AttrValue; pub trait VirtualMethods { /// Returns self as the superclass of the implementation for this trait, /// if any. - fn super_type(&self) -> Option<&VirtualMethods>; + fn super_type(&self) -> Option<&dyn VirtualMethods>; /// Called when attributes of a node are mutated. - /// https://dom.spec.whatwg.org/#attribute-is-set - /// https://dom.spec.whatwg.org/#attribute-is-removed + /// <https://dom.spec.whatwg.org/#attribute-is-set> + /// <https://dom.spec.whatwg.org/#attribute-is-removed> fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) { if let Some(s) = self.super_type() { s.attribute_mutated(attr, mutation); } } + /// Returns `true` if given attribute `attr` affects style of the + /// given element. + fn attribute_affects_presentational_hints(&self, attr: &Attr) -> bool { + match self.super_type() { + Some(s) => s.attribute_affects_presentational_hints(attr), + None => false, + } + } + /// Returns the right AttrValue variant for the attribute with name `name` /// on this element. fn parse_plain_attribute(&self, name: &LocalName, value: DOMString) -> AttrValue { @@ -79,18 +91,18 @@ pub trait VirtualMethods { } } - /// Called when a Node is appended to a tree, where 'tree_in_doc' indicates + /// Called when a Node is appended to a tree, where 'tree_connected' indicates /// whether the tree is part of a Document. - fn bind_to_tree(&self, tree_in_doc: bool) { + fn bind_to_tree(&self, context: &BindContext) { if let Some(ref s) = self.super_type() { - s.bind_to_tree(tree_in_doc); + s.bind_to_tree(context); } } - /// Called when a Node is removed from a tree, where 'tree_in_doc' + /// Called when a Node is removed from a tree, where 'tree_connected' /// indicates whether the tree is part of a Document. /// Implements removing steps: - /// https://dom.spec.whatwg.org/#concept-node-remove-ext + /// <https://dom.spec.whatwg.org/#concept-node-remove-ext> fn unbind_from_tree(&self, context: &UnbindContext) { if let Some(ref s) = self.super_type() { s.unbind_from_tree(context); @@ -111,16 +123,20 @@ pub trait VirtualMethods { } } - /// https://dom.spec.whatwg.org/#concept-node-adopt-ext + /// <https://dom.spec.whatwg.org/#concept-node-adopt-ext> fn adopting_steps(&self, old_doc: &Document) { if let Some(ref s) = self.super_type() { s.adopting_steps(old_doc); } } - /// https://dom.spec.whatwg.org/#concept-node-clone-ext - fn cloning_steps(&self, copy: &Node, maybe_doc: Option<&Document>, - clone_children: CloneChildrenFlag) { + /// <https://dom.spec.whatwg.org/#concept-node-clone-ext> + fn cloning_steps( + &self, + copy: &Node, + maybe_doc: Option<&Document>, + clone_children: CloneChildrenFlag, + ) { if let Some(ref s) = self.super_type() { s.cloning_steps(copy, maybe_doc, clone_children); } @@ -139,126 +155,128 @@ pub trait VirtualMethods { /// method call on the trait object will invoke the corresponding method on the /// concrete type, propagating up the parent hierarchy unless otherwise /// interrupted. -pub fn vtable_for(node: &Node) -> &VirtualMethods { +pub fn vtable_for(node: &Node) -> &dyn VirtualMethods { match node.type_id() { NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLAnchorElement)) => { - node.downcast::<HTMLAnchorElement>().unwrap() as &VirtualMethods - } - NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLAppletElement)) => { - node.downcast::<HTMLAppletElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLAnchorElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLAreaElement)) => { - node.downcast::<HTMLAreaElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLAreaElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLBaseElement)) => { - node.downcast::<HTMLBaseElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLBaseElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLBodyElement)) => { - node.downcast::<HTMLBodyElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLBodyElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLButtonElement)) => { - node.downcast::<HTMLButtonElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLButtonElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLCanvasElement)) => { - node.downcast::<HTMLCanvasElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLCanvasElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLDetailsElement)) => { - node.downcast::<HTMLDetailsElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLDetailsElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLFieldSetElement)) => { - node.downcast::<HTMLFieldSetElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLFieldSetElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLFontElement)) => { - node.downcast::<HTMLFontElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLFontElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLFormElement)) => { - node.downcast::<HTMLFormElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLFormElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLHeadElement)) => { - node.downcast::<HTMLHeadElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLHeadElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLHRElement)) => { - node.downcast::<HTMLHRElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLHRElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLImageElement)) => { - node.downcast::<HTMLImageElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLImageElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLIFrameElement)) => { - node.downcast::<HTMLIFrameElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLIFrameElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLInputElement)) => { - node.downcast::<HTMLInputElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLInputElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLLabelElement)) => { - node.downcast::<HTMLLabelElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLLabelElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLLIElement)) => { - node.downcast::<HTMLLIElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLLIElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLLinkElement)) => { - node.downcast::<HTMLLinkElement>().unwrap() as &VirtualMethods - } - NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLMediaElement(_))) => { - node.downcast::<HTMLMediaElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLLinkElement>().unwrap() as &dyn VirtualMethods + }, + NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLMediaElement( + media_el, + ))) => match media_el { + HTMLMediaElementTypeId::HTMLVideoElement => { + node.downcast::<HTMLVideoElement>().unwrap() as &dyn VirtualMethods + }, + _ => node.downcast::<HTMLMediaElement>().unwrap() as &dyn VirtualMethods, + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLMetaElement)) => { - node.downcast::<HTMLMetaElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLMetaElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLObjectElement)) => { - node.downcast::<HTMLObjectElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLObjectElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLOptGroupElement)) => { - node.downcast::<HTMLOptGroupElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLOptGroupElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLOptionElement)) => { - node.downcast::<HTMLOptionElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLOptionElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLOutputElement)) => { - node.downcast::<HTMLOutputElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLOutputElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLScriptElement)) => { - node.downcast::<HTMLScriptElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLScriptElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLSelectElement)) => { - node.downcast::<HTMLSelectElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLSelectElement>().unwrap() as &dyn VirtualMethods + }, + NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLSourceElement)) => { + node.downcast::<HTMLSourceElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLStyleElement)) => { - node.downcast::<HTMLStyleElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLStyleElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLTableElement)) => { - node.downcast::<HTMLTableElement>().unwrap() as &VirtualMethods - } - NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLTableCellElement(_))) => { - node.downcast::<HTMLTableCellElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLTableElement>().unwrap() as &dyn VirtualMethods + }, + NodeTypeId::Element(ElementTypeId::HTMLElement( + HTMLElementTypeId::HTMLTableCellElement, + )) => node.downcast::<HTMLTableCellElement>().unwrap() as &dyn VirtualMethods, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLTableRowElement)) => { - node.downcast::<HTMLTableRowElement>().unwrap() as &VirtualMethods - } - NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLTableSectionElement)) => { - node.downcast::<HTMLTableSectionElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLTableRowElement>().unwrap() as &dyn VirtualMethods + }, + NodeTypeId::Element(ElementTypeId::HTMLElement( + HTMLElementTypeId::HTMLTableSectionElement, + )) => node.downcast::<HTMLTableSectionElement>().unwrap() as &dyn VirtualMethods, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLTemplateElement)) => { - node.downcast::<HTMLTemplateElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLTemplateElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLTextAreaElement)) => { - node.downcast::<HTMLTextAreaElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLTextAreaElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLTitleElement)) => { - node.downcast::<HTMLTitleElement>().unwrap() as &VirtualMethods - } + node.downcast::<HTMLTitleElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::SVGElement(SVGElementTypeId::SVGGraphicsElement( - SVGGraphicsElementTypeId::SVGSVGElement - ))) => { - node.downcast::<SVGSVGElement>().unwrap() as &VirtualMethods - } + SVGGraphicsElementTypeId::SVGSVGElement, + ))) => node.downcast::<SVGSVGElement>().unwrap() as &dyn VirtualMethods, + NodeTypeId::Element(ElementTypeId::SVGElement(SVGElementTypeId::SVGElement)) => { + node.downcast::<SVGElement>().unwrap() as &dyn VirtualMethods + }, NodeTypeId::Element(ElementTypeId::Element) => { - node.downcast::<Element>().unwrap() as &VirtualMethods - } - NodeTypeId::Element(_) => { - node.downcast::<HTMLElement>().unwrap() as &VirtualMethods - } - _ => { - node as &VirtualMethods - } + node.downcast::<Element>().unwrap() as &dyn VirtualMethods + }, + NodeTypeId::Element(_) => node.downcast::<HTMLElement>().unwrap() as &dyn VirtualMethods, + _ => node as &dyn VirtualMethods, } } |