diff options
Diffstat (limited to 'components/script/dom/element.rs')
| -rw-r--r-- | components/script/dom/element.rs | 225 |
1 files changed, 115 insertions, 110 deletions
diff --git a/components/script/dom/element.rs b/components/script/dom/element.rs index 85b94de04d0..52f2bbc5423 100644 --- a/components/script/dom/element.rs +++ b/components/script/dom/element.rs @@ -19,39 +19,44 @@ use dom::bindings::codegen::Bindings::HTMLInputElementBinding::HTMLInputElementM use dom::bindings::codegen::Bindings::HTMLTemplateElementBinding::HTMLTemplateElementMethods; use dom::bindings::codegen::Bindings::NamedNodeMapBinding::NamedNodeMapMethods; use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods; -use dom::bindings::codegen::InheritTypes::{CharacterDataCast, DocumentDerived, ElementCast}; -use dom::bindings::codegen::InheritTypes::{ElementDerived, ElementTypeId, EventTargetCast}; -use dom::bindings::codegen::InheritTypes::{HTMLAnchorElementCast, HTMLBodyElementCast}; -use dom::bindings::codegen::InheritTypes::{HTMLElementTypeId, HTMLFieldSetElementDerived, HTMLFontElementCast}; -use dom::bindings::codegen::InheritTypes::{HTMLIFrameElementCast, HTMLInputElementCast}; -use dom::bindings::codegen::InheritTypes::{HTMLLegendElementDerived, HTMLOptGroupElementDerived}; -use dom::bindings::codegen::InheritTypes::{HTMLTableCellElementCast, HTMLTableElementCast}; -use dom::bindings::codegen::InheritTypes::{HTMLTableRowElementCast, HTMLTableSectionElementCast}; -use dom::bindings::codegen::InheritTypes::{HTMLTemplateElementCast, HTMLTextAreaElementCast}; -use dom::bindings::codegen::InheritTypes::{NodeCast, NodeTypeId, TextCast}; +use dom::bindings::codegen::InheritTypes::{ElementTypeId, HTMLElementTypeId, NodeTypeId}; use dom::bindings::codegen::UnionTypes::NodeOrString; +use dom::bindings::conversions::Castable; use dom::bindings::error::{Error, ErrorResult, Fallible}; use dom::bindings::global::GlobalRef; use dom::bindings::js::{JS, LayoutJS, MutNullableHeap}; use dom::bindings::js::{Root, RootedReference}; use dom::bindings::utils::XMLName::InvalidXMLName; use dom::bindings::utils::{namespace_from_domstring, validate_and_extract, xml_name_type}; +use dom::characterdata::CharacterData; use dom::create::create_element; use dom::document::{Document, LayoutDocumentHelpers}; use dom::domrect::DOMRect; use dom::domrectlist::DOMRectList; use dom::domtokenlist::DOMTokenList; use dom::event::Event; +use dom::eventtarget::EventTarget; +use dom::htmlanchorelement::HTMLAnchorElement; +use dom::htmlbodyelement::HTMLBodyElement; use dom::htmlcollection::HTMLCollection; +use dom::htmlfieldsetelement::HTMLFieldSetElement; +use dom::htmlfontelement::HTMLFontElement; +use dom::htmliframeelement::HTMLIFrameElement; use dom::htmlinputelement::{HTMLInputElement, RawLayoutHTMLInputElementHelpers}; -use dom::htmltablecellelement::HTMLTableCellElementLayoutHelpers; +use dom::htmllegendelement::HTMLLegendElement; +use dom::htmloptgroupelement::HTMLOptGroupElement; +use dom::htmltablecellelement::{HTMLTableCellElement, HTMLTableCellElementLayoutHelpers}; use dom::htmltableelement::HTMLTableElement; -use dom::htmltextareaelement::RawLayoutHTMLTextAreaElementHelpers; +use dom::htmltablerowelement::HTMLTableRowElement; +use dom::htmltablesectionelement::HTMLTableSectionElement; +use dom::htmltemplateelement::HTMLTemplateElement; +use dom::htmltextareaelement::{HTMLTextAreaElement, RawLayoutHTMLTextAreaElementHelpers}; use dom::namednodemap::NamedNodeMap; use dom::node::{CLICK_IN_PROGRESS, LayoutNodeHelpers, Node}; use dom::node::{NodeDamage, SEQUENTIALLY_FOCUSABLE}; use dom::node::{document_from_node, window_from_node}; use dom::nodelist::NodeList; +use dom::text::Text; use dom::virtualmethods::{VirtualMethods, vtable_for}; use html5ever::serialize; use html5ever::serialize::SerializeOpts; @@ -281,15 +286,15 @@ impl LayoutElementHelpers for LayoutJS<Element> { unsafe fn synthesize_presentational_hints_for_legacy_attributes<V>(&self, hints: &mut V) where V: VecLike<DeclarationBlock<Vec<PropertyDeclaration>>> { - let bgcolor = if let Some(this) = HTMLBodyElementCast::to_layout_js(self) { + let bgcolor = if let Some(this) = self.downcast::<HTMLBodyElement>() { (*this.unsafe_get()).get_background_color() - } else if let Some(this) = HTMLTableElementCast::to_layout_js(self) { + } else if let Some(this) = self.downcast::<HTMLTableElement>() { (*this.unsafe_get()).get_background_color() - } else if let Some(this) = HTMLTableCellElementCast::to_layout_js(self) { + } else if let Some(this) = self.downcast::<HTMLTableCellElement>() { this.get_background_color() - } else if let Some(this) = HTMLTableRowElementCast::to_layout_js(self) { + } else if let Some(this) = self.downcast::<HTMLTableRowElement>() { (*this.unsafe_get()).get_background_color() - } else if let Some(this) = HTMLTableSectionElementCast::to_layout_js(self) { + } else if let Some(this) = self.downcast::<HTMLTableSectionElement>() { (*this.unsafe_get()).get_background_color() } else { None @@ -301,7 +306,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { CSSColor { parsed: Color::RGBA(color), authored: None })))); } - let background = if let Some(this) = HTMLBodyElementCast::to_layout_js(self) { + let background = if let Some(this) = self.downcast::<HTMLBodyElement>() { (*this.unsafe_get()).get_background() } else { None @@ -313,9 +318,9 @@ impl LayoutElementHelpers for LayoutJS<Element> { background_image::SpecifiedValue(Some(specified::Image::Url(url))))))); } - let color = if let Some(this) = HTMLFontElementCast::to_layout_js(self) { + let color = if let Some(this) = self.downcast::<HTMLFontElement>() { (*this.unsafe_get()).get_color() - } else if let Some(this) = HTMLBodyElementCast::to_layout_js(self) { + } else if let Some(this) = self.downcast::<HTMLBodyElement>() { // https://html.spec.whatwg.org/multipage/#the-page:the-body-element-20 (*this.unsafe_get()).get_color() } else { @@ -330,7 +335,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { })))); } - let font_family = if let Some(this) = HTMLFontElementCast::to_layout_js(self) { + let font_family = if let Some(this) = self.downcast::<HTMLFontElement>() { (*this.unsafe_get()).get_face() } else { None @@ -345,7 +350,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { font_family)]))))); } - let font_size = if let Some(this) = HTMLFontElementCast::to_layout_js(self) { + let font_size = if let Some(this) = self.downcast::<HTMLFontElement>() { (*this.unsafe_get()).get_size() } else { None @@ -358,7 +363,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { font_size::SpecifiedValue(font_size))))) } - let cellspacing = if let Some(this) = HTMLTableElementCast::to_layout_js(self) { + let cellspacing = if let Some(this) = self.downcast::<HTMLTableElement>() { (*this.unsafe_get()).get_cellspacing() } else { None @@ -375,7 +380,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { } - let size = if let Some(this) = HTMLInputElementCast::to_layout_js(self) { + let size = if let Some(this) = self.downcast::<HTMLInputElement>() { // FIXME(pcwalton): More use of atoms, please! // FIXME(Ms2ger): this is nonsense! Invalid values also end up as // a text field @@ -401,11 +406,11 @@ impl LayoutElementHelpers for LayoutJS<Element> { } - let width = if let Some(this) = HTMLIFrameElementCast::to_layout_js(self) { + let width = if let Some(this) = self.downcast::<HTMLIFrameElement>() { (*this.unsafe_get()).get_width() - } else if let Some(this) = HTMLTableElementCast::to_layout_js(self) { + } else if let Some(this) = self.downcast::<HTMLTableElement>() { (*this.unsafe_get()).get_width() - } else if let Some(this) = HTMLTableCellElementCast::to_layout_js(self) { + } else if let Some(this) = self.downcast::<HTMLTableCellElement>() { this.get_width() } else { LengthOrPercentageOrAuto::Auto @@ -428,7 +433,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { } - let height = if let Some(this) = HTMLIFrameElementCast::to_layout_js(self) { + let height = if let Some(this) = self.downcast::<HTMLIFrameElement>() { (*this.unsafe_get()).get_height() } else { LengthOrPercentageOrAuto::Auto @@ -451,7 +456,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { } - let cols = if let Some(this) = HTMLTextAreaElementCast::to_layout_js(self) { + let cols = if let Some(this) = self.downcast::<HTMLTextAreaElement>() { match (*this.unsafe_get()).get_cols_for_layout() { 0 => None, c => Some(c as i32), @@ -473,7 +478,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { } - let rows = if let Some(this) = HTMLTextAreaElementCast::to_layout_js(self) { + let rows = if let Some(this) = self.downcast::<HTMLTextAreaElement>() { match (*this.unsafe_get()).get_rows_for_layout() { 0 => None, r => Some(r as i32), @@ -493,7 +498,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { } - let border = if let Some(this) = HTMLTableElementCast::to_layout_js(self) { + let border = if let Some(this) = self.downcast::<HTMLTableElement>() { (*this.unsafe_get()).get_border() } else { None @@ -522,7 +527,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { -> Option<u32> { match attribute { UnsignedIntegerAttribute::ColSpan => { - if let Some(this) = HTMLTableCellElementCast::to_layout_js(self) { + if let Some(this) = self.downcast::<HTMLTableCellElement>() { this.get_colspan() } else { // Don't panic since `display` can cause this to be called on arbitrary @@ -539,7 +544,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { if (*self.unsafe_get()).namespace != ns!(HTML) { return false } - let node = NodeCast::from_layout_js(&self); + let node = self.upcast::<Node>(); node.owner_doc_for_layout().is_html_document_for_layout() } @@ -580,7 +585,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { #[allow(unsafe_code)] fn get_checked_state_for_layout(&self) -> bool { // TODO option and menuitem can also have a checked state. - match HTMLInputElementCast::to_layout_js(self) { + match self.downcast::<HTMLInputElement>() { Some(input) => unsafe { (*input.unsafe_get()).get_checked_state_for_layout() }, @@ -592,7 +597,7 @@ impl LayoutElementHelpers for LayoutJS<Element> { #[allow(unsafe_code)] fn get_indeterminate_state_for_layout(&self) -> bool { // TODO progress elements can also be matched with :indeterminate - match HTMLInputElementCast::to_layout_js(self) { + match self.downcast::<HTMLInputElement>() { Some(input) => unsafe { (*input.unsafe_get()).get_indeterminate_state_for_layout() }, @@ -618,7 +623,7 @@ pub enum StylePriority { impl Element { pub fn html_element_in_html_document(&self) -> bool { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); self.namespace == ns!(HTML) && node.is_in_html_doc() } @@ -779,7 +784,7 @@ impl Element { } pub fn serialize(&self, traversal_scope: TraversalScope) -> Fallible<DOMString> { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); let mut writer = vec![]; match serialize(&mut writer, &node, SerializeOpts { @@ -793,17 +798,17 @@ impl Element { // https://html.spec.whatwg.org/multipage/#root-element pub fn get_root_element(&self) -> Root<Element> { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.inclusive_ancestors() - .filter_map(ElementCast::to_root) + .filter_map(Root::downcast::<Element>) .last() .expect("We know inclusive_ancestors will return `self` which is an element") } // https://dom.spec.whatwg.org/#locate-a-namespace-prefix pub fn lookup_prefix(&self, namespace: Namespace) -> Option<DOMString> { - for node in NodeCast::from_ref(self).inclusive_ancestors() { - match ElementCast::to_ref(node.r()) { + for node in self.upcast::<Node>().inclusive_ancestors() { + match node.downcast::<Element>() { Some(element) => { // Step 1. if *element.namespace() == namespace { @@ -836,7 +841,7 @@ impl Element { return false; } // TODO: Check whether the element is being rendered (i.e. not hidden). - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); if node.get_flag(SEQUENTIALLY_FOCUSABLE) { return true; } @@ -853,7 +858,7 @@ impl Element { } pub fn is_actually_disabled(&self) -> bool { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); match node.type_id() { NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLButtonElement)) | NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLInputElement)) | @@ -884,7 +889,7 @@ impl Element { let attr = Attr::new(&window, local_name, value, name, namespace, prefix, Some(self)); self.attrs.borrow_mut().push(JS::from_rooted(&attr)); if in_empty_ns { - vtable_for(NodeCast::from_ref(self)).attribute_mutated( + vtable_for(self.upcast::<Node>()).attribute_mutated( &attr, AttributeMutation::Set(None)); } } @@ -969,7 +974,7 @@ impl Element { pub fn parse_attribute(&self, namespace: &Namespace, local_name: &Atom, value: DOMString) -> AttrValue { if *namespace == ns!("") { - vtable_for(&NodeCast::from_ref(self)) + vtable_for(&self.upcast::<Node>()) .parse_plain_attribute(local_name, value) } else { AttrValue::String(value) @@ -996,7 +1001,7 @@ impl Element { let attr = (*self.attrs.borrow())[idx].root(); self.attrs.borrow_mut().remove(idx); attr.set_owner(None); - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); if attr.namespace() == &ns!("") { vtable_for(node).attribute_mutated(&attr, AttributeMutation::Removed); } @@ -1006,7 +1011,7 @@ impl Element { pub fn has_class(&self, name: &Atom) -> bool { let quirks_mode = { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); let owner_doc = node.owner_doc(); owner_doc.r().quirks_mode() }; @@ -1172,7 +1177,7 @@ impl ElementMethods for Element { fn Attributes(&self) -> Root<NamedNodeMap> { self.attr_list.or_init(|| { let doc = { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.owner_doc() }; let window = doc.r().window(); @@ -1272,26 +1277,26 @@ impl ElementMethods for Element { // https://dom.spec.whatwg.org/#dom-element-getelementsbytagname fn GetElementsByTagName(&self, localname: DOMString) -> Root<HTMLCollection> { let window = window_from_node(self); - HTMLCollection::by_tag_name(window.r(), NodeCast::from_ref(self), localname) + HTMLCollection::by_tag_name(window.r(), self.upcast::<Node>(), localname) } // https://dom.spec.whatwg.org/#dom-element-getelementsbytagnamens fn GetElementsByTagNameNS(&self, maybe_ns: Option<DOMString>, localname: DOMString) -> Root<HTMLCollection> { let window = window_from_node(self); - HTMLCollection::by_tag_name_ns(window.r(), NodeCast::from_ref(self), localname, maybe_ns) + HTMLCollection::by_tag_name_ns(window.r(), self.upcast::<Node>(), localname, maybe_ns) } // https://dom.spec.whatwg.org/#dom-element-getelementsbyclassname fn GetElementsByClassName(&self, classes: DOMString) -> Root<HTMLCollection> { let window = window_from_node(self); - HTMLCollection::by_class_name(window.r(), NodeCast::from_ref(self), classes) + HTMLCollection::by_class_name(window.r(), self.upcast::<Node>(), classes) } // https://drafts.csswg.org/cssom-view/#dom-element-getclientrects fn GetClientRects(&self) -> Root<DOMRectList> { let win = window_from_node(self); - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); let raw_rects = node.get_content_boxes(); let rects = raw_rects.iter().map(|rect| { DOMRect::new(GlobalRef::Window(win.r()), @@ -1306,7 +1311,7 @@ impl ElementMethods for Element { // https://drafts.csswg.org/cssom-view/#dom-element-getboundingclientrect fn GetBoundingClientRect(&self) -> Root<DOMRect> { let win = window_from_node(self); - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); let rect = node.get_bounding_content_box(); DOMRect::new(GlobalRef::Window(win.r()), rect.origin.x.to_f64_px(), @@ -1317,25 +1322,25 @@ impl ElementMethods for Element { // https://drafts.csswg.org/cssom-view/#dom-element-clienttop fn ClientTop(&self) -> i32 { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.get_client_rect().origin.y } // https://drafts.csswg.org/cssom-view/#dom-element-clientleft fn ClientLeft(&self) -> i32 { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.get_client_rect().origin.x } // https://drafts.csswg.org/cssom-view/#dom-element-clientwidth fn ClientWidth(&self) -> i32 { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.get_client_rect().size.width } // https://drafts.csswg.org/cssom-view/#dom-element-clientheight fn ClientHeight(&self) -> i32 { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.get_client_rect().size.height } @@ -1347,17 +1352,17 @@ impl ElementMethods for Element { /// https://w3c.github.io/DOM-Parsing/#widl-Element-innerHTML fn SetInnerHTML(&self, value: DOMString) -> Fallible<()> { - let context_node = NodeCast::from_ref(self); + let context_node = self.upcast::<Node>(); // Step 1. let frag = try!(context_node.parse_fragment(value)); // Step 2. // https://github.com/w3c/DOM-Parsing/issues/1 - let target = if let Some(template) = HTMLTemplateElementCast::to_ref(self) { - NodeCast::from_root(template.Content()) + let target = if let Some(template) = self.downcast::<HTMLTemplateElement>() { + Root::upcast::<Node>(template.Content()) } else { Root::from_ref(context_node) }; - Node::replace_all(Some(NodeCast::from_ref(&*frag)), &target); + Node::replace_all(Some(frag.upcast::<Node>()), &target); Ok(()) } @@ -1369,7 +1374,7 @@ impl ElementMethods for Element { // https://dvcs.w3.org/hg/innerhtml/raw-file/tip/index.html#widl-Element-outerHTML fn SetOuterHTML(&self, value: DOMString) -> Fallible<()> { let context_document = document_from_node(self); - let context_node = NodeCast::from_ref(self); + let context_node = self.upcast::<Node>(); // Step 1. let context_parent = match context_node.GetParentNode() { None => { @@ -1388,7 +1393,7 @@ impl ElementMethods for Element { let body_elem = Element::create(QualName::new(ns!(HTML), atom!(body)), None, context_document.r(), ElementCreator::ScriptCreated); - NodeCast::from_root(body_elem) + Root::upcast::<Node>(body_elem) }, _ => context_node.GetParentNode().unwrap() }; @@ -1396,84 +1401,84 @@ impl ElementMethods for Element { // Step 5. let frag = try!(parent.r().parse_fragment(value)); // Step 6. - try!(context_parent.r().ReplaceChild(NodeCast::from_ref(frag.r()), + try!(context_parent.r().ReplaceChild(frag.upcast::<Node>(), context_node)); Ok(()) } // https://dom.spec.whatwg.org/#dom-nondocumenttypechildnode-previouselementsibling fn GetPreviousElementSibling(&self) -> Option<Root<Element>> { - NodeCast::from_ref(self).preceding_siblings() - .filter_map(ElementCast::to_root).next() + self.upcast::<Node>().preceding_siblings() + .filter_map(Root::downcast::<Element>).next() } // https://dom.spec.whatwg.org/#dom-nondocumenttypechildnode-nextelementsibling fn GetNextElementSibling(&self) -> Option<Root<Element>> { - NodeCast::from_ref(self).following_siblings() - .filter_map(ElementCast::to_root).next() + self.upcast::<Node>().following_siblings() + .filter_map(Root::downcast::<Element>).next() } // https://dom.spec.whatwg.org/#dom-parentnode-children fn Children(&self) -> Root<HTMLCollection> { let window = window_from_node(self); - HTMLCollection::children(window.r(), NodeCast::from_ref(self)) + HTMLCollection::children(window.r(), self.upcast::<Node>()) } // https://dom.spec.whatwg.org/#dom-parentnode-firstelementchild fn GetFirstElementChild(&self) -> Option<Root<Element>> { - NodeCast::from_ref(self).child_elements().next() + self.upcast::<Node>().child_elements().next() } // https://dom.spec.whatwg.org/#dom-parentnode-lastelementchild fn GetLastElementChild(&self) -> Option<Root<Element>> { - NodeCast::from_ref(self).rev_children().filter_map(ElementCast::to_root).next() + self.upcast::<Node>().rev_children().filter_map(Root::downcast::<Element>).next() } // https://dom.spec.whatwg.org/#dom-parentnode-childelementcount fn ChildElementCount(&self) -> u32 { - NodeCast::from_ref(self).child_elements().count() as u32 + self.upcast::<Node>().child_elements().count() as u32 } // https://dom.spec.whatwg.org/#dom-parentnode-prepend fn Prepend(&self, nodes: Vec<NodeOrString>) -> ErrorResult { - NodeCast::from_ref(self).prepend(nodes) + self.upcast::<Node>().prepend(nodes) } // https://dom.spec.whatwg.org/#dom-parentnode-append fn Append(&self, nodes: Vec<NodeOrString>) -> ErrorResult { - NodeCast::from_ref(self).append(nodes) + self.upcast::<Node>().append(nodes) } // https://dom.spec.whatwg.org/#dom-parentnode-queryselector fn QuerySelector(&self, selectors: DOMString) -> Fallible<Option<Root<Element>>> { - let root = NodeCast::from_ref(self); + let root = self.upcast::<Node>(); root.query_selector(selectors) } // https://dom.spec.whatwg.org/#dom-parentnode-queryselectorall fn QuerySelectorAll(&self, selectors: DOMString) -> Fallible<Root<NodeList>> { - let root = NodeCast::from_ref(self); + let root = self.upcast::<Node>(); root.query_selector_all(selectors) } // https://dom.spec.whatwg.org/#dom-childnode-before fn Before(&self, nodes: Vec<NodeOrString>) -> ErrorResult { - NodeCast::from_ref(self).before(nodes) + self.upcast::<Node>().before(nodes) } // https://dom.spec.whatwg.org/#dom-childnode-after fn After(&self, nodes: Vec<NodeOrString>) -> ErrorResult { - NodeCast::from_ref(self).after(nodes) + self.upcast::<Node>().after(nodes) } // https://dom.spec.whatwg.org/#dom-childnode-replacewith fn ReplaceWith(&self, nodes: Vec<NodeOrString>) -> ErrorResult { - NodeCast::from_ref(self).replace_with(nodes) + self.upcast::<Node>().replace_with(nodes) } // https://dom.spec.whatwg.org/#dom-childnode-remove fn Remove(&self) { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.remove_self(); } @@ -1492,9 +1497,9 @@ impl ElementMethods for Element { match parse_author_origin_selector_list_from_str(&selectors) { Err(()) => Err(Error::Syntax), Ok(ref selectors) => { - let root = NodeCast::from_ref(self); + let root = self.upcast::<Node>(); for element in root.inclusive_ancestors() { - if let Some(element) = ElementCast::to_root(element) { + if let Some(element) = Root::downcast::<Element>(element) { if matches(selectors, &element, None) { return Ok(Some(element)); } @@ -1508,13 +1513,13 @@ impl ElementMethods for Element { impl VirtualMethods for Element { fn super_type(&self) -> Option<&VirtualMethods> { - let node: &Node = NodeCast::from_ref(self); + let node: &Node = self.upcast::<Node>(); Some(node as &VirtualMethods) } fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) { self.super_type().unwrap().attribute_mutated(attr, mutation); - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); let doc = node.owner_doc(); let damage = match attr.local_name() { &atom!(style) => { @@ -1607,7 +1612,7 @@ impl VirtualMethods for Element { impl<'a> ::selectors::Element for Root<Element> { fn parent_element(&self) -> Option<Root<Element>> { - NodeCast::from_ref(&**self).GetParentElement() + self.upcast::<Node>().GetParentElement() } fn first_child_element(&self) -> Option<Root<Element>> { @@ -1615,34 +1620,34 @@ impl<'a> ::selectors::Element for Root<Element> { } fn last_child_element(&self) -> Option<Root<Element>> { - self.node.rev_children().filter_map(ElementCast::to_root).next() + self.node.rev_children().filter_map(Root::downcast::<Element>).next() } fn prev_sibling_element(&self) -> Option<Root<Element>> { - self.node.preceding_siblings().filter_map(ElementCast::to_root).next() + self.node.preceding_siblings().filter_map(Root::downcast::<Element>).next() } fn next_sibling_element(&self) -> Option<Root<Element>> { - self.node.following_siblings().filter_map(ElementCast::to_root).next() + self.node.following_siblings().filter_map(Root::downcast::<Element>).next() } fn is_root(&self) -> bool { match self.node.GetParentNode() { None => false, - Some(node) => node.is_document(), + Some(node) => node.is::<Document>(), } } fn is_empty(&self) -> bool { - self.node.children().all(|node| !node.is_element() && match TextCast::to_ref(&*node) { + self.node.children().all(|node| !node.is::<Element>() && match node.downcast::<Text>() { None => true, - Some(text) => CharacterDataCast::from_ref(text).data().is_empty() + Some(text) => text.upcast::<CharacterData>().data().is_empty() }) } fn is_link(&self) -> bool { // FIXME: This is HTML only. - let node = NodeCast::from_ref(&**self); + let node = self.upcast::<Node>(); match node.type_id() { // https://html.spec.whatwg.org/multipage/#selector-link NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLAnchorElement)) | @@ -1696,14 +1701,14 @@ impl<'a> ::selectors::Element for Root<Element> { Element::get_enabled_state(self) } fn get_checked_state(&self) -> bool { - let input_element: Option<&HTMLInputElement> = HTMLInputElementCast::to_ref(&**self); + let input_element: Option<&HTMLInputElement> = self.downcast::<HTMLInputElement>(); match input_element { Some(input) => input.Checked(), None => false, } } fn get_indeterminate_state(&self) -> bool { - let input_element: Option<&HTMLInputElement> = HTMLInputElementCast::to_ref(&**self); + let input_element: Option<&HTMLInputElement> = self.downcast::<HTMLInputElement>(); match input_element { Some(input) => input.get_indeterminate_state(), None => false, @@ -1724,7 +1729,7 @@ impl<'a> ::selectors::Element for Root<Element> { } } fn has_servo_nonzero_border(&self) -> bool { - let table_element: Option<&HTMLTableElement> = HTMLTableElementCast::to_ref(&**self); + let table_element: Option<&HTMLTableElement> = self.downcast::<HTMLTableElement>(); match table_element { None => false, Some(this) => { @@ -1769,14 +1774,14 @@ impl<'a> ::selectors::Element for Root<Element> { impl Element { pub fn as_maybe_activatable(&self) -> Option<&Activatable> { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); let element = match node.type_id() { NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLInputElement)) => { - let element = HTMLInputElementCast::to_ref(self).unwrap(); + let element = self.downcast::<HTMLInputElement>().unwrap(); Some(element as &Activatable) }, NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLAnchorElement)) => { - let element = HTMLAnchorElementCast::to_ref(self).unwrap(); + let element = self.downcast::<HTMLAnchorElement>().unwrap(); Some(element as &Activatable) }, _ => { @@ -1793,12 +1798,12 @@ impl Element { } pub fn click_in_progress(&self) -> bool { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.get_flag(CLICK_IN_PROGRESS) } pub fn set_click_in_progress(&self, click: bool) { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.set_flag(CLICK_IN_PROGRESS, click) } @@ -1807,9 +1812,9 @@ impl Element { match self.as_maybe_activatable() { Some(el) => Some(Root::from_ref(el.as_element())), None => { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); for node in node.ancestors() { - if let Some(node) = ElementCast::to_ref(node.r()) { + if let Some(node) = node.downcast::<Element>() { if node.as_maybe_activatable().is_some() { return Some(Root::from_ref(node)) } @@ -1833,7 +1838,7 @@ impl Element { // the script can generate more click events from the handler) assert!(!self.click_in_progress()); - let target = EventTargetCast::from_ref(self); + let target = self.upcast::<EventTarget>(); // Step 2 (requires canvas support) // Step 3 self.set_click_in_progress(true); @@ -1870,7 +1875,7 @@ impl Element { }; self.event_state.set(state); - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); node.dirty(NodeDamage::NodeStyleDamaged); } @@ -1917,20 +1922,20 @@ impl Element { impl Element { pub fn check_ancestors_disabled_state_for_form_control(&self) { - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); if self.get_disabled_state() { return; } for ancestor in node.ancestors() { let ancestor = ancestor; let ancestor = ancestor.r(); - if !ancestor.is_htmlfieldsetelement() { continue; } - if !ElementCast::to_ref(ancestor).unwrap().get_disabled_state() { continue; } + if !ancestor.is::<HTMLFieldSetElement>() { continue; } + if !ancestor.downcast::<Element>().unwrap().get_disabled_state() { continue; } if ancestor.is_parent_of(node) { self.set_disabled_state(true); self.set_enabled_state(false); return; } match ancestor.children() - .find(|child| child.r().is_htmllegendelement()) + .find(|child| child.r().is::<HTMLLegendElement>()) { Some(ref legend) => { // XXXabinader: should we save previous ancestor to avoid this iteration? @@ -1946,9 +1951,9 @@ impl Element { pub fn check_parent_disabled_state_for_option(&self) { if self.get_disabled_state() { return; } - let node = NodeCast::from_ref(self); + let node = self.upcast::<Node>(); if let Some(ref parent) = node.GetParentNode() { - if parent.r().is_htmloptgroupelement() && ElementCast::to_ref(parent.r()).unwrap().get_disabled_state() { + if parent.r().is::<HTMLOptGroupElement>() && parent.downcast::<Element>().unwrap().get_disabled_state() { self.set_disabled_state(true); self.set_enabled_state(false); } |