/* 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, namespace_url, ns}; use js::conversions::ToJSValConvertible; 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::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::htmlelement::HTMLElement; use crate::dom::window::Window; use crate::script_runtime::{CanGc, JSContext, JSContext as SafeJSContext}; use crate::script_thread::ScriptThread; /// 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::().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::()); 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::()); 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.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 pop_current_element_queue(can_gc: CanGc) { ScriptThread::pop_current_element_queue(can_gc); } pub(crate) fn push_new_element_queue() { ScriptThread::push_new_element_queue(); } pub(crate) fn call_html_constructor + 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>(element: &Element) -> bool { element.is::() } html_constructor( cx, global, args, element_derives_interface::, proto_id, creator, can_gc, ) .is_ok() }