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Add construction stack
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commit
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2 changed files with 42 additions and 14 deletions
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@ -80,6 +80,7 @@ use dom::bindings::guard::Guard;
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use dom::bindings::js::Root;
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use dom::bindings::utils::{DOM_PROTOTYPE_SLOT, ProtoOrIfaceArray, get_proto_or_iface_array};
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use dom::create::create_native_html_element;
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use dom::customelementregistry::ConstructionStackEntry;
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use dom::element::{Element, ElementCreator};
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use dom::htmlelement::HTMLElement;
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use dom::window::Window;
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@ -281,24 +282,42 @@ pub unsafe fn html_constructor<T>(window: &Window, call_args: &CallArgs) -> Fall
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}
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}
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// Step 8.1
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let name = QualName::new(None, ns!(html), definition.local_name.clone());
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let element = if definition.is_autonomous() {
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Root::upcast(HTMLElement::new(name.local, None, &*document))
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} else {
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create_native_html_element(name, None, &*document, ElementCreator::ScriptCreated)
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};
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let entry = definition.construction_stack.borrow().last().cloned();
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match entry {
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// Step 8
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None => {
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// Step 8.1
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let name = QualName::new(None, ns!(html), definition.local_name.clone());
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let element = if definition.is_autonomous() {
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Root::upcast(HTMLElement::new(name.local, None, &*document))
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} else {
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create_native_html_element(name, None, &*document, ElementCreator::ScriptCreated)
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};
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// Step 8.2 is performed in the generated caller code.
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// Step 8.2 is performed in the generated caller code.
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// TODO: Step 8.3 - 8.4
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// Set the element's custom element state and definition.
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// TODO: Step 8.3 - 8.4
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// Set the element's custom element state and definition.
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element.set_custom_element_definition(definition.clone());
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// Step 8.5
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Root::downcast(element).ok_or(Error::InvalidState)
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// Step 8.5
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Root::downcast(element).ok_or(Error::InvalidState)
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},
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// Step 9
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Some(ConstructionStackEntry::Element(element)) => {
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// Step 11 is performed in the generated caller code.
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// TODO: Steps 9-13
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// Custom element upgrades are not implemented yet, so these steps are unnecessary.
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// Step 12
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let mut construction_stack = definition.construction_stack.borrow_mut();
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construction_stack.pop();
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construction_stack.push(ConstructionStackEntry::AlreadyConstructedMarker);
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// Step 13
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Root::downcast(element).ok_or(Error::InvalidState)
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},
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// Step 10
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Some(ConstructionStackEntry::AlreadyConstructedMarker) => Err(Error::InvalidState),
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}
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}
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pub fn push_new_element_queue() {
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