| /* 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::ptr; |
| |
| use html5ever::interface::QualName; |
| use html5ever::{LocalName, local_name, ns}; |
| use js::glue::{UnwrapObjectDynamic, UnwrapObjectStatic}; |
| use js::jsapi::{CallArgs, CurrentGlobalOrNull, JSAutoRealm, JSObject}; |
| use js::rust::wrappers::{JS_SetPrototype, JS_WrapObject}; |
| use js::rust::{HandleObject, MutableHandleObject, MutableHandleValue}; |
| use script_bindings::conversions::SafeToJSValConvertible; |
| use script_bindings::interface::get_desired_proto; |
| |
| use super::utils::ProtoOrIfaceArray; |
| use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods; |
| use crate::dom::bindings::codegen::Bindings::{ |
| HTMLAnchorElementBinding, HTMLAreaElementBinding, HTMLAudioElementBinding, |
| HTMLBRElementBinding, HTMLBaseElementBinding, HTMLBodyElementBinding, HTMLButtonElementBinding, |
| HTMLCanvasElementBinding, HTMLDListElementBinding, HTMLDataElementBinding, |
| HTMLDataListElementBinding, HTMLDetailsElementBinding, HTMLDialogElementBinding, |
| HTMLDirectoryElementBinding, HTMLDivElementBinding, HTMLElementBinding, |
| HTMLEmbedElementBinding, HTMLFieldSetElementBinding, HTMLFontElementBinding, |
| HTMLFormElementBinding, HTMLFrameElementBinding, HTMLFrameSetElementBinding, |
| HTMLHRElementBinding, HTMLHeadElementBinding, HTMLHeadingElementBinding, |
| HTMLHtmlElementBinding, HTMLIFrameElementBinding, HTMLImageElementBinding, |
| HTMLInputElementBinding, HTMLLIElementBinding, HTMLLabelElementBinding, |
| HTMLLegendElementBinding, HTMLLinkElementBinding, HTMLMapElementBinding, |
| HTMLMenuElementBinding, HTMLMetaElementBinding, HTMLMeterElementBinding, HTMLModElementBinding, |
| HTMLOListElementBinding, HTMLObjectElementBinding, HTMLOptGroupElementBinding, |
| HTMLOptionElementBinding, HTMLOutputElementBinding, HTMLParagraphElementBinding, |
| HTMLParamElementBinding, HTMLPictureElementBinding, HTMLPreElementBinding, |
| HTMLProgressElementBinding, HTMLQuoteElementBinding, HTMLScriptElementBinding, |
| HTMLSelectElementBinding, HTMLSlotElementBinding, HTMLSourceElementBinding, |
| HTMLSpanElementBinding, HTMLStyleElementBinding, HTMLTableCaptionElementBinding, |
| HTMLTableCellElementBinding, HTMLTableColElementBinding, HTMLTableElementBinding, |
| HTMLTableRowElementBinding, HTMLTableSectionElementBinding, HTMLTemplateElementBinding, |
| HTMLTextAreaElementBinding, HTMLTimeElementBinding, HTMLTitleElementBinding, |
| HTMLTrackElementBinding, HTMLUListElementBinding, HTMLVideoElementBinding, |
| }; |
| use crate::dom::bindings::codegen::PrototypeList; |
| use crate::dom::bindings::conversions::DerivedFrom; |
| use crate::dom::bindings::error::{Error, throw_dom_exception}; |
| use crate::dom::bindings::inheritance::Castable; |
| use crate::dom::bindings::reflector::DomObject; |
| use crate::dom::bindings::root::DomRoot; |
| use crate::dom::create::create_native_html_element; |
| use crate::dom::customelementregistry::{ConstructionStackEntry, CustomElementState}; |
| use crate::dom::element::{Element, ElementCreator}; |
| use crate::dom::globalscope::GlobalScope; |
| use crate::dom::html::htmlelement::HTMLElement; |
| use crate::dom::window::Window; |
| use crate::script_runtime::{CanGc, JSContext, JSContext as SafeJSContext}; |
| |
| /// <https://html.spec.whatwg.org/multipage/#htmlconstructor> |
| fn html_constructor( |
| cx: JSContext, |
| global: &GlobalScope, |
| call_args: &CallArgs, |
| check_type: fn(&Element) -> bool, |
| proto_id: PrototypeList::ID, |
| creator: unsafe fn(SafeJSContext, HandleObject, *mut ProtoOrIfaceArray), |
| can_gc: CanGc, |
| ) -> Result<(), ()> { |
| let window = global.downcast::<Window>().unwrap(); |
| let document = window.Document(); |
| |
| // Step 1. Let registry be current global object's custom element registry. |
| let registry = window.CustomElements(); |
| |
| // Step 2 https://html.spec.whatwg.org/multipage/#htmlconstructor |
| // The custom element definition cannot use an element interface as its constructor |
| |
| // The new_target might be a cross-compartment wrapper. Get the underlying object |
| // so we can do the spec's object-identity checks. |
| rooted!(in(*cx) let new_target_unwrapped = unsafe { |
| UnwrapObjectDynamic(call_args.new_target().to_object(), *cx, true) |
| }); |
| if new_target_unwrapped.is_null() { |
| throw_dom_exception( |
| cx, |
| global, |
| Error::Type("new.target is null".to_owned()), |
| can_gc, |
| ); |
| return Err(()); |
| } |
| if call_args.callee() == new_target_unwrapped.get() { |
| throw_dom_exception( |
| cx, |
| global, |
| Error::Type("new.target must not be the active function object".to_owned()), |
| can_gc, |
| ); |
| return Err(()); |
| } |
| |
| // Step 3. Let definition be the item in registry's custom element definition set with constructor |
| // equal to NewTarget. If there is no such item, then throw a TypeError. |
| rooted!(in(*cx) let new_target = call_args.new_target().to_object()); |
| let definition = match registry.lookup_definition_by_constructor(new_target.handle()) { |
| Some(definition) => definition, |
| None => { |
| throw_dom_exception( |
| cx, |
| global, |
| Error::Type("No custom element definition found for new.target".to_owned()), |
| can_gc, |
| ); |
| return Err(()); |
| }, |
| }; |
| |
| // Step 4. Let isValue be null. |
| let mut is_value = None; |
| |
| rooted!(in(*cx) let callee = unsafe { UnwrapObjectStatic(call_args.callee()) }); |
| if callee.is_null() { |
| throw_dom_exception(cx, global, Error::Security, can_gc); |
| return Err(()); |
| } |
| |
| { |
| let _ac = JSAutoRealm::new(*cx, callee.get()); |
| rooted!(in(*cx) let mut constructor = ptr::null_mut::<JSObject>()); |
| rooted!(in(*cx) let global_object = unsafe { CurrentGlobalOrNull(*cx) }); |
| |
| // Step 5. If definition's local name is equal to definition's name |
| // (i.e., definition is for an autonomous custom element): |
| if definition.is_autonomous() { |
| // Since this element is autonomous, its active function object must be the HTMLElement |
| // Retrieve the constructor object for HTMLElement |
| HTMLElementBinding::GetConstructorObject( |
| cx, |
| global_object.handle(), |
| constructor.handle_mut(), |
| ); |
| } |
| // Step 6. Otherwise (i.e., if definition is for a customized built-in element): |
| else { |
| get_constructor_object_from_local_name( |
| definition.local_name.clone(), |
| cx, |
| global_object.handle(), |
| constructor.handle_mut(), |
| ); |
| |
| // Step 6.3 Set isValue to definition's name. |
| is_value = Some(definition.name.clone()); |
| } |
| // Callee must be the same as the element interface's constructor object. |
| if constructor.get() != callee.get() { |
| throw_dom_exception( |
| cx, |
| global, |
| Error::Type("Custom element does not extend the proper interface".to_owned()), |
| can_gc, |
| ); |
| return Err(()); |
| } |
| } |
| |
| // Step 6 |
| rooted!(in(*cx) let mut prototype = ptr::null_mut::<JSObject>()); |
| get_desired_proto(cx, call_args, proto_id, creator, prototype.handle_mut())?; |
| |
| let entry = definition.construction_stack.borrow().last().cloned(); |
| let result = match entry { |
| // Step 7. If definition's construction stack is empty: |
| None => { |
| // Step 7.1 |
| let name = QualName::new(None, ns!(html), definition.local_name.clone()); |
| // Any prototype used to create these elements will be overwritten before returning |
| // from this function, so we don't bother overwriting the defaults here. |
| let element = if definition.is_autonomous() { |
| DomRoot::upcast(HTMLElement::new(name.local, None, &document, None, can_gc)) |
| } else { |
| create_native_html_element( |
| name, |
| None, |
| &document, |
| ElementCreator::ScriptCreated, |
| None, |
| ) |
| }; |
| |
| // Step 7.2-7.5 are performed in the generated caller code. |
| |
| // Step 7.6 Set element's custom element state to "custom". |
| element.set_custom_element_state(CustomElementState::Custom); |
| |
| // Step 7.7 Set element's custom element definition to definition. |
| element.set_custom_element_definition(definition.clone()); |
| |
| // Step 7.8 Set element's is value to isValue. |
| if let Some(is_value) = is_value { |
| element.set_is(is_value); |
| } |
| |
| if !check_type(&element) { |
| throw_dom_exception(cx, global, Error::InvalidState, can_gc); |
| return Err(()); |
| } else { |
| // Step 7.9 Return element. |
| element |
| } |
| }, |
| // Step 9 |
| Some(ConstructionStackEntry::Element(element)) => { |
| // Step 11 is performed in the generated caller code. |
| |
| // Step 12 |
| let mut construction_stack = definition.construction_stack.borrow_mut(); |
| construction_stack.pop(); |
| construction_stack.push(ConstructionStackEntry::AlreadyConstructedMarker); |
| |
| // Step 13 |
| if !check_type(&element) { |
| throw_dom_exception(cx, global, Error::InvalidState, can_gc); |
| return Err(()); |
| } else { |
| element |
| } |
| }, |
| // Step 10 |
| Some(ConstructionStackEntry::AlreadyConstructedMarker) => { |
| let s = "Top of construction stack marked AlreadyConstructed due to \ |
| a custom element constructor constructing itself after super()" |
| .to_string(); |
| throw_dom_exception(cx, global, Error::Type(s), can_gc); |
| return Err(()); |
| }, |
| }; |
| |
| rooted!(in(*cx) let mut element = result.reflector().get_jsobject().get()); |
| unsafe { |
| if !JS_WrapObject(*cx, element.handle_mut()) { |
| return Err(()); |
| } |
| |
| JS_SetPrototype(*cx, element.handle(), prototype.handle()); |
| |
| result.safe_to_jsval(cx, MutableHandleValue::from_raw(call_args.rval())); |
| } |
| Ok(()) |
| } |
| |
| /// Returns the constructor object for the element associated with the |
| /// given local name. This list should only include elements marked with the |
| /// [HTMLConstructor](https://html.spec.whatwg.org/multipage/#htmlconstructor) |
| /// extended attribute. |
| fn get_constructor_object_from_local_name( |
| name: LocalName, |
| cx: JSContext, |
| global: HandleObject, |
| rval: MutableHandleObject, |
| ) -> bool { |
| let constructor_fn = match name { |
| local_name!("a") => HTMLAnchorElementBinding::GetConstructorObject, |
| local_name!("abbr") => HTMLElementBinding::GetConstructorObject, |
| local_name!("acronym") => HTMLElementBinding::GetConstructorObject, |
| local_name!("address") => HTMLElementBinding::GetConstructorObject, |
| local_name!("area") => HTMLAreaElementBinding::GetConstructorObject, |
| local_name!("article") => HTMLElementBinding::GetConstructorObject, |
| local_name!("aside") => HTMLElementBinding::GetConstructorObject, |
| local_name!("audio") => HTMLAudioElementBinding::GetConstructorObject, |
| local_name!("b") => HTMLElementBinding::GetConstructorObject, |
| local_name!("base") => HTMLBaseElementBinding::GetConstructorObject, |
| local_name!("bdi") => HTMLElementBinding::GetConstructorObject, |
| local_name!("bdo") => HTMLElementBinding::GetConstructorObject, |
| local_name!("big") => HTMLElementBinding::GetConstructorObject, |
| local_name!("blockquote") => HTMLQuoteElementBinding::GetConstructorObject, |
| local_name!("body") => HTMLBodyElementBinding::GetConstructorObject, |
| local_name!("br") => HTMLBRElementBinding::GetConstructorObject, |
| local_name!("button") => HTMLButtonElementBinding::GetConstructorObject, |
| local_name!("canvas") => HTMLCanvasElementBinding::GetConstructorObject, |
| local_name!("caption") => HTMLTableCaptionElementBinding::GetConstructorObject, |
| local_name!("center") => HTMLElementBinding::GetConstructorObject, |
| local_name!("cite") => HTMLElementBinding::GetConstructorObject, |
| local_name!("code") => HTMLElementBinding::GetConstructorObject, |
| local_name!("col") => HTMLTableColElementBinding::GetConstructorObject, |
| local_name!("colgroup") => HTMLTableColElementBinding::GetConstructorObject, |
| local_name!("data") => HTMLDataElementBinding::GetConstructorObject, |
| local_name!("datalist") => HTMLDataListElementBinding::GetConstructorObject, |
| local_name!("dd") => HTMLElementBinding::GetConstructorObject, |
| local_name!("del") => HTMLModElementBinding::GetConstructorObject, |
| local_name!("details") => HTMLDetailsElementBinding::GetConstructorObject, |
| local_name!("dfn") => HTMLElementBinding::GetConstructorObject, |
| local_name!("dialog") => HTMLDialogElementBinding::GetConstructorObject, |
| local_name!("dir") => HTMLDirectoryElementBinding::GetConstructorObject, |
| local_name!("div") => HTMLDivElementBinding::GetConstructorObject, |
| local_name!("dl") => HTMLDListElementBinding::GetConstructorObject, |
| local_name!("dt") => HTMLElementBinding::GetConstructorObject, |
| local_name!("em") => HTMLElementBinding::GetConstructorObject, |
| local_name!("embed") => HTMLEmbedElementBinding::GetConstructorObject, |
| local_name!("fieldset") => HTMLFieldSetElementBinding::GetConstructorObject, |
| local_name!("figcaption") => HTMLElementBinding::GetConstructorObject, |
| local_name!("figure") => HTMLElementBinding::GetConstructorObject, |
| local_name!("font") => HTMLFontElementBinding::GetConstructorObject, |
| local_name!("footer") => HTMLElementBinding::GetConstructorObject, |
| local_name!("form") => HTMLFormElementBinding::GetConstructorObject, |
| local_name!("frame") => HTMLFrameElementBinding::GetConstructorObject, |
| local_name!("frameset") => HTMLFrameSetElementBinding::GetConstructorObject, |
| local_name!("h1") => HTMLHeadingElementBinding::GetConstructorObject, |
| local_name!("h2") => HTMLHeadingElementBinding::GetConstructorObject, |
| local_name!("h3") => HTMLHeadingElementBinding::GetConstructorObject, |
| local_name!("h4") => HTMLHeadingElementBinding::GetConstructorObject, |
| local_name!("h5") => HTMLHeadingElementBinding::GetConstructorObject, |
| local_name!("h6") => HTMLHeadingElementBinding::GetConstructorObject, |
| local_name!("head") => HTMLHeadElementBinding::GetConstructorObject, |
| local_name!("header") => HTMLElementBinding::GetConstructorObject, |
| local_name!("hgroup") => HTMLElementBinding::GetConstructorObject, |
| local_name!("hr") => HTMLHRElementBinding::GetConstructorObject, |
| local_name!("html") => HTMLHtmlElementBinding::GetConstructorObject, |
| local_name!("i") => HTMLElementBinding::GetConstructorObject, |
| local_name!("iframe") => HTMLIFrameElementBinding::GetConstructorObject, |
| local_name!("img") => HTMLImageElementBinding::GetConstructorObject, |
| local_name!("input") => HTMLInputElementBinding::GetConstructorObject, |
| local_name!("ins") => HTMLModElementBinding::GetConstructorObject, |
| local_name!("kbd") => HTMLElementBinding::GetConstructorObject, |
| local_name!("label") => HTMLLabelElementBinding::GetConstructorObject, |
| local_name!("legend") => HTMLLegendElementBinding::GetConstructorObject, |
| local_name!("li") => HTMLLIElementBinding::GetConstructorObject, |
| local_name!("link") => HTMLLinkElementBinding::GetConstructorObject, |
| local_name!("listing") => HTMLPreElementBinding::GetConstructorObject, |
| local_name!("main") => HTMLElementBinding::GetConstructorObject, |
| local_name!("map") => HTMLMapElementBinding::GetConstructorObject, |
| local_name!("mark") => HTMLElementBinding::GetConstructorObject, |
| local_name!("marquee") => HTMLElementBinding::GetConstructorObject, |
| local_name!("menu") => HTMLMenuElementBinding::GetConstructorObject, |
| local_name!("meta") => HTMLMetaElementBinding::GetConstructorObject, |
| local_name!("meter") => HTMLMeterElementBinding::GetConstructorObject, |
| local_name!("nav") => HTMLElementBinding::GetConstructorObject, |
| local_name!("nobr") => HTMLElementBinding::GetConstructorObject, |
| local_name!("noframes") => HTMLElementBinding::GetConstructorObject, |
| local_name!("noscript") => HTMLElementBinding::GetConstructorObject, |
| local_name!("object") => HTMLObjectElementBinding::GetConstructorObject, |
| local_name!("ol") => HTMLOListElementBinding::GetConstructorObject, |
| local_name!("optgroup") => HTMLOptGroupElementBinding::GetConstructorObject, |
| local_name!("option") => HTMLOptionElementBinding::GetConstructorObject, |
| local_name!("output") => HTMLOutputElementBinding::GetConstructorObject, |
| local_name!("p") => HTMLParagraphElementBinding::GetConstructorObject, |
| local_name!("param") => HTMLParamElementBinding::GetConstructorObject, |
| local_name!("picture") => HTMLPictureElementBinding::GetConstructorObject, |
| local_name!("plaintext") => HTMLPreElementBinding::GetConstructorObject, |
| local_name!("pre") => HTMLPreElementBinding::GetConstructorObject, |
| local_name!("progress") => HTMLProgressElementBinding::GetConstructorObject, |
| local_name!("q") => HTMLQuoteElementBinding::GetConstructorObject, |
| local_name!("rp") => HTMLElementBinding::GetConstructorObject, |
| local_name!("rt") => HTMLElementBinding::GetConstructorObject, |
| local_name!("ruby") => HTMLElementBinding::GetConstructorObject, |
| local_name!("s") => HTMLElementBinding::GetConstructorObject, |
| local_name!("samp") => HTMLElementBinding::GetConstructorObject, |
| local_name!("script") => HTMLScriptElementBinding::GetConstructorObject, |
| local_name!("section") => HTMLElementBinding::GetConstructorObject, |
| local_name!("select") => HTMLSelectElementBinding::GetConstructorObject, |
| local_name!("slot") => HTMLSlotElementBinding::GetConstructorObject, |
| local_name!("small") => HTMLElementBinding::GetConstructorObject, |
| local_name!("source") => HTMLSourceElementBinding::GetConstructorObject, |
| local_name!("span") => HTMLSpanElementBinding::GetConstructorObject, |
| local_name!("strike") => HTMLElementBinding::GetConstructorObject, |
| local_name!("strong") => HTMLElementBinding::GetConstructorObject, |
| local_name!("style") => HTMLStyleElementBinding::GetConstructorObject, |
| local_name!("sub") => HTMLElementBinding::GetConstructorObject, |
| local_name!("summary") => HTMLElementBinding::GetConstructorObject, |
| local_name!("sup") => HTMLElementBinding::GetConstructorObject, |
| local_name!("table") => HTMLTableElementBinding::GetConstructorObject, |
| local_name!("tbody") => HTMLTableSectionElementBinding::GetConstructorObject, |
| local_name!("td") => HTMLTableCellElementBinding::GetConstructorObject, |
| local_name!("template") => HTMLTemplateElementBinding::GetConstructorObject, |
| local_name!("textarea") => HTMLTextAreaElementBinding::GetConstructorObject, |
| local_name!("tfoot") => HTMLTableSectionElementBinding::GetConstructorObject, |
| local_name!("th") => HTMLTableCellElementBinding::GetConstructorObject, |
| local_name!("thead") => HTMLTableSectionElementBinding::GetConstructorObject, |
| local_name!("time") => HTMLTimeElementBinding::GetConstructorObject, |
| local_name!("title") => HTMLTitleElementBinding::GetConstructorObject, |
| local_name!("tr") => HTMLTableRowElementBinding::GetConstructorObject, |
| local_name!("tt") => HTMLElementBinding::GetConstructorObject, |
| local_name!("track") => HTMLTrackElementBinding::GetConstructorObject, |
| local_name!("u") => HTMLElementBinding::GetConstructorObject, |
| local_name!("ul") => HTMLUListElementBinding::GetConstructorObject, |
| local_name!("var") => HTMLElementBinding::GetConstructorObject, |
| local_name!("video") => HTMLVideoElementBinding::GetConstructorObject, |
| local_name!("wbr") => HTMLElementBinding::GetConstructorObject, |
| local_name!("xmp") => HTMLPreElementBinding::GetConstructorObject, |
| _ => return false, |
| }; |
| constructor_fn(cx, global, rval); |
| true |
| } |
| |
| pub(crate) fn call_html_constructor<T: DerivedFrom<Element> + DomObject>( |
| cx: JSContext, |
| args: &CallArgs, |
| global: &GlobalScope, |
| proto_id: PrototypeList::ID, |
| creator: unsafe fn(SafeJSContext, HandleObject, *mut ProtoOrIfaceArray), |
| can_gc: CanGc, |
| ) -> bool { |
| fn element_derives_interface<T: DerivedFrom<Element>>(element: &Element) -> bool { |
| element.is::<T>() |
| } |
| |
| html_constructor( |
| cx, |
| global, |
| args, |
| element_derives_interface::<T>, |
| proto_id, |
| creator, |
| can_gc, |
| ) |
| .is_ok() |
| } |
