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-rw-r--r--dom/base/CustomElementRegistry.cpp119
-rw-r--r--dom/base/CustomElementRegistry.h16
-rw-r--r--dom/base/Element.cpp75
-rw-r--r--dom/base/nsContentUtils.cpp22
-rw-r--r--dom/base/nsContentUtils.h5
-rw-r--r--dom/tests/mochitest/webcomponents/mochitest.ini3
-rw-r--r--testing/web-platform/meta/custom-elements/CustomElementRegistry.html.ini12
-rw-r--r--testing/web-platform/meta/custom-elements/HTMLElement-constructor.html.ini11
-rw-r--r--testing/web-platform/meta/custom-elements/attribute-changed-callback.html.ini16
-rw-r--r--testing/web-platform/meta/custom-elements/htmlconstructor/newtarget.html.ini14
10 files changed, 222 insertions, 71 deletions
diff --git a/dom/base/CustomElementRegistry.cpp b/dom/base/CustomElementRegistry.cpp
index cc6264b03..34ad9549d 100644
--- a/dom/base/CustomElementRegistry.cpp
+++ b/dom/base/CustomElementRegistry.cpp
@@ -434,8 +434,27 @@ CustomElementRegistry::EnqueueLifecycleCallback(nsIDocument::ElementCallbackType
LifecycleCallbackArgs* aArgs,
CustomElementDefinition* aDefinition)
{
+ RefPtr<CustomElementData> elementData = aCustomElement->GetCustomElementData();
+ MOZ_ASSERT(elementData, "CustomElementData should exist");
+
+ // Let DEFINITION be ELEMENT's definition
+ CustomElementDefinition* definition = aDefinition;
+ if (!definition) {
+ mozilla::dom::NodeInfo* info = aCustomElement->NodeInfo();
+
+ // Make sure we get the correct definition in case the element
+ // is a extended custom element e.g. <button is="x-button">.
+ nsCOMPtr<nsIAtom> typeAtom = elementData ?
+ elementData->mType.get() : info->NameAtom();
+
+ definition = mCustomDefinitions.Get(typeAtom);
+ if (!definition || definition->mLocalName != info->NameAtom()) {
+ return;
+ }
+ }
+
auto callback =
- CreateCustomElementCallback(aType, aCustomElement, aArgs, aDefinition);
+ CreateCustomElementCallback(aType, aCustomElement, aArgs, definition);
if (!callback) {
return;
}
@@ -445,9 +464,17 @@ CustomElementRegistry::EnqueueLifecycleCallback(nsIDocument::ElementCallbackType
return;
}
+ if (aType == nsIDocument::eAttributeChanged) {
+ nsCOMPtr<nsIAtom> attrName = NS_Atomize(aArgs->name);
+ if (definition->mObservedAttributes.IsEmpty() ||
+ !definition->mObservedAttributes.Contains(attrName)) {
+ return;
+ }
+ }
+
CustomElementReactionsStack* reactionsStack =
docGroup->CustomElementReactionsStack();
- reactionsStack->EnqueueCallbackReaction(this, aCustomElement, aDefinition,
+ reactionsStack->EnqueueCallbackReaction(this, aCustomElement, definition,
Move(callback));
}
@@ -657,6 +684,7 @@ CustomElementRegistry::Define(const nsAString& aName,
JS::Rooted<JSObject*> constructorPrototype(cx);
nsAutoPtr<LifecycleCallbacks> callbacksHolder(new LifecycleCallbacks());
+ nsCOMArray<nsIAtom> observedAttributes;
{ // Set mIsCustomDefinitionRunning.
/**
* 9. Set this CustomElementRegistry's element definition is running flag.
@@ -718,6 +746,14 @@ CustomElementRegistry::Define(const nsAString& aName,
return;
}
+ // Note: We call the init from the constructorProtoUnwrapped's compartment
+ // here.
+ JS::RootedValue rootedv(cx, JS::ObjectValue(*constructorProtoUnwrapped));
+ if (!JS_WrapValue(cx, &rootedv) || !callbacksHolder->Init(cx, rootedv)) {
+ aRv.StealExceptionFromJSContext(cx);
+ return;
+ }
+
/**
* 10.5. Let observedAttributes be an empty sequence<DOMString>.
* 10.6. If the value of the entry in lifecycleCallbacks with key
@@ -730,14 +766,45 @@ CustomElementRegistry::Define(const nsAString& aName,
* any exceptions from the conversion.
*/
// TODO: Bug 1293921 - Implement connected/disconnected/adopted/attributeChanged lifecycle callbacks for custom elements
+ if (callbacksHolder->mAttributeChangedCallback.WasPassed()) {
+ // Enter constructor's compartment.
+ JSAutoCompartment ac(cx, constructor);
+ JS::Rooted<JS::Value> observedAttributesIterable(cx);
+
+ if (!JS_GetProperty(cx, constructor, "observedAttributes",
+ &observedAttributesIterable)) {
+ aRv.StealExceptionFromJSContext(cx);
+ return;
+ }
- // Note: We call the init from the constructorProtoUnwrapped's compartment
- // here.
- JS::RootedValue rootedv(cx, JS::ObjectValue(*constructorProtoUnwrapped));
- if (!JS_WrapValue(cx, &rootedv) || !callbacksHolder->Init(cx, rootedv)) {
- aRv.StealExceptionFromJSContext(cx);
- return;
- }
+ if (!observedAttributesIterable.isUndefined()) {
+ JS::ForOfIterator iter(cx);
+ if (!iter.init(observedAttributesIterable)) {
+ aRv.StealExceptionFromJSContext(cx);
+ return;
+ }
+
+ JS::Rooted<JS::Value> attribute(cx);
+ while (true) {
+ bool done;
+ if (!iter.next(&attribute, &done)) {
+ aRv.StealExceptionFromJSContext(cx);
+ return;
+ }
+ if (done) {
+ break;
+ }
+
+ JSString *attrJSStr = attribute.toString();
+ nsAutoJSString attrStr;
+ if (!attrStr.init(cx, attrJSStr)) {
+ aRv.StealExceptionFromJSContext(cx);
+ return;
+ }
+ observedAttributes.AppendElement(NS_Atomize(attrStr));
+ }
+ }
+ } // Leave constructor's compartment.
} // Leave constructorProtoUnwrapped's compartment.
} // Unset mIsCustomDefinitionRunning
@@ -754,6 +821,7 @@ CustomElementRegistry::Define(const nsAString& aName,
new CustomElementDefinition(nameAtom,
localNameAtom,
&aFunctionConstructor,
+ Move(observedAttributes),
constructorPrototype,
callbacks,
0 /* TODO dependent on HTML imports. Bug 877072 */);
@@ -878,8 +946,35 @@ CustomElementRegistry::Upgrade(Element* aElement,
return;
}
- // Step 3 and Step 4.
- // TODO: Bug 1334051 - Implement list of observed attributes for custom elements' attributeChanged callbacks
+ // Step 3.
+ if (!aDefinition->mObservedAttributes.IsEmpty()) {
+ uint32_t count = aElement->GetAttrCount();
+ for (uint32_t i = 0; i < count; i++) {
+ mozilla::dom::BorrowedAttrInfo info = aElement->GetAttrInfoAt(i);
+
+ const nsAttrName* name = info.mName;
+ nsIAtom* attrName = name->LocalName();
+
+ if (aDefinition->IsInObservedAttributeList(attrName)) {
+ int32_t namespaceID = name->NamespaceID();
+ nsAutoString attrValue, namespaceURI;
+ info.mValue->ToString(attrValue);
+ nsContentUtils::NameSpaceManager()->GetNameSpaceURI(namespaceID,
+ namespaceURI);
+
+ LifecycleCallbackArgs args = {
+ nsDependentAtomString(attrName),
+ NullString(),
+ (attrValue.IsEmpty() ? NullString() : attrValue),
+ (namespaceURI.IsEmpty() ? NullString() : namespaceURI)
+ };
+ EnqueueLifecycleCallback(nsIDocument::eAttributeChanged, aElement,
+ &args, aDefinition);
+ }
+ }
+ }
+
+ // Step 4.
// TODO: Bug 1334043 - Implement connected lifecycle callbacks for custom elements
// Step 5.
@@ -1051,12 +1146,14 @@ CustomElementReactionsStack::InvokeReactions(ElementQueue* aElementQueue,
CustomElementDefinition::CustomElementDefinition(nsIAtom* aType,
nsIAtom* aLocalName,
Function* aConstructor,
+ nsCOMArray<nsIAtom>&& aObservedAttributes,
JSObject* aPrototype,
LifecycleCallbacks* aCallbacks,
uint32_t aDocOrder)
: mType(aType),
mLocalName(aLocalName),
mConstructor(new CustomElementConstructor(aConstructor)),
+ mObservedAttributes(Move(aObservedAttributes)),
mPrototype(aPrototype),
mCallbacks(aCallbacks),
mDocOrder(aDocOrder)
diff --git a/dom/base/CustomElementRegistry.h b/dom/base/CustomElementRegistry.h
index b5903f978..b85d089f9 100644
--- a/dom/base/CustomElementRegistry.h
+++ b/dom/base/CustomElementRegistry.h
@@ -128,6 +128,7 @@ struct CustomElementDefinition
CustomElementDefinition(nsIAtom* aType,
nsIAtom* aLocalName,
Function* aConstructor,
+ nsCOMArray<nsIAtom>&& aObservedAttributes,
JSObject* aPrototype,
mozilla::dom::LifecycleCallbacks* aCallbacks,
uint32_t aDocOrder);
@@ -141,6 +142,9 @@ struct CustomElementDefinition
// The custom element constructor.
RefPtr<CustomElementConstructor> mConstructor;
+ // The list of attributes that this custom element observes.
+ nsCOMArray<nsIAtom> mObservedAttributes;
+
// The prototype to use for new custom elements of this type.
JS::Heap<JSObject *> mPrototype;
@@ -153,9 +157,19 @@ struct CustomElementDefinition
// The document custom element order.
uint32_t mDocOrder;
- bool IsCustomBuiltIn() {
+ bool IsCustomBuiltIn()
+ {
return mType != mLocalName;
}
+
+ bool IsInObservedAttributeList(nsIAtom* aName)
+ {
+ if (mObservedAttributes.IsEmpty()) {
+ return false;
+ }
+
+ return mObservedAttributes.Contains(aName);
+ }
};
class CustomElementReaction
diff --git a/dom/base/Element.cpp b/dom/base/Element.cpp
index 247fbe79e..5719b423d 100644
--- a/dom/base/Element.cpp
+++ b/dom/base/Element.cpp
@@ -2586,23 +2586,29 @@ Element::SetAttrAndNotify(int32_t aNamespaceID,
UpdateState(aNotify);
- nsIDocument* ownerDoc = OwnerDoc();
- if (ownerDoc && GetCustomElementData()) {
- nsCOMPtr<nsIAtom> oldValueAtom = oldValue->GetAsAtom();
- nsCOMPtr<nsIAtom> newValueAtom = valueForAfterSetAttr.GetAsAtom();
- nsAutoString ns;
- nsContentUtils::NameSpaceManager()->GetNameSpaceURI(aNamespaceID, ns);
-
- LifecycleCallbackArgs args = {
- nsDependentAtomString(aName),
- aModType == nsIDOMMutationEvent::ADDITION ?
- NullString() : nsDependentAtomString(oldValueAtom),
- nsDependentAtomString(newValueAtom),
- (ns.IsEmpty() ? NullString() : ns)
- };
-
- nsContentUtils::EnqueueLifecycleCallback(
- ownerDoc, nsIDocument::eAttributeChanged, this, &args);
+ if (nsContentUtils::IsWebComponentsEnabled()) {
+ if (CustomElementData* data = GetCustomElementData()) {
+ if (CustomElementDefinition* definition =
+ nsContentUtils::GetElementDefinitionIfObservingAttr(this,
+ data->mType,
+ aName)) {
+ nsCOMPtr<nsIAtom> oldValueAtom = oldValue->GetAsAtom();
+ nsCOMPtr<nsIAtom> newValueAtom = valueForAfterSetAttr.GetAsAtom();
+ nsAutoString ns;
+ nsContentUtils::NameSpaceManager()->GetNameSpaceURI(aNamespaceID, ns);
+
+ LifecycleCallbackArgs args = {
+ nsDependentAtomString(aName),
+ aModType == nsIDOMMutationEvent::ADDITION ?
+ NullString() : nsDependentAtomString(oldValueAtom),
+ nsDependentAtomString(newValueAtom),
+ (ns.IsEmpty() ? NullString() : ns)
+ };
+
+ nsContentUtils::EnqueueLifecycleCallback(
+ OwnerDoc(), nsIDocument::eAttributeChanged, this, &args, definition);
+ }
+ }
}
if (aCallAfterSetAttr) {
@@ -2847,20 +2853,27 @@ Element::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aName,
UpdateState(aNotify);
- nsIDocument* ownerDoc = OwnerDoc();
- if (ownerDoc && GetCustomElementData()) {
- nsAutoString ns;
- nsContentUtils::NameSpaceManager()->GetNameSpaceURI(aNameSpaceID, ns);
- nsCOMPtr<nsIAtom> oldValueAtom = oldValue.GetAsAtom();
- LifecycleCallbackArgs args = {
- nsDependentAtomString(aName),
- nsDependentAtomString(oldValueAtom),
- NullString(),
- (ns.IsEmpty() ? NullString() : ns)
- };
-
- nsContentUtils::EnqueueLifecycleCallback(
- ownerDoc, nsIDocument::eAttributeChanged, this, &args);
+ if (nsContentUtils::IsWebComponentsEnabled()) {
+ if (CustomElementData* data = GetCustomElementData()) {
+ if (CustomElementDefinition* definition =
+ nsContentUtils::GetElementDefinitionIfObservingAttr(this,
+ data->mType,
+ aName)) {
+ nsAutoString ns;
+ nsContentUtils::NameSpaceManager()->GetNameSpaceURI(aNameSpaceID, ns);
+
+ nsCOMPtr<nsIAtom> oldValueAtom = oldValue.GetAsAtom();
+ LifecycleCallbackArgs args = {
+ nsDependentAtomString(aName),
+ nsDependentAtomString(oldValueAtom),
+ NullString(),
+ (ns.IsEmpty() ? NullString() : ns)
+ };
+
+ nsContentUtils::EnqueueLifecycleCallback(
+ OwnerDoc(), nsIDocument::eAttributeChanged, this, &args, definition);
+ }
+ }
}
if (aNotify) {
diff --git a/dom/base/nsContentUtils.cpp b/dom/base/nsContentUtils.cpp
index b8ee09bf6..570065dba 100644
--- a/dom/base/nsContentUtils.cpp
+++ b/dom/base/nsContentUtils.cpp
@@ -9637,6 +9637,28 @@ nsContentUtils::SetupCustomElement(Element* aElement,
return registry->SetupCustomElement(aElement, aTypeExtension);
}
+/* static */ CustomElementDefinition*
+nsContentUtils::GetElementDefinitionIfObservingAttr(Element* aCustomElement,
+ nsIAtom* aExtensionType,
+ nsIAtom* aAttrName)
+{
+ nsString extType = nsDependentAtomString(aExtensionType);
+ NodeInfo *ni = aCustomElement->NodeInfo();
+
+ CustomElementDefinition* definition =
+ LookupCustomElementDefinition(aCustomElement->OwnerDoc(), ni->LocalName(),
+ ni->NamespaceID(),
+ extType.IsEmpty() ? nullptr : &extType);
+
+ // Custom element not defined yet or attribute is not in the observed
+ // attribute list.
+ if (!definition || !definition->IsInObservedAttributeList(aAttrName)) {
+ return nullptr;
+ }
+
+ return definition;
+}
+
/* static */ void
nsContentUtils::EnqueueLifecycleCallback(nsIDocument* aDoc,
nsIDocument::ElementCallbackType aType,
diff --git a/dom/base/nsContentUtils.h b/dom/base/nsContentUtils.h
index 06a7b5ded..96c920394 100644
--- a/dom/base/nsContentUtils.h
+++ b/dom/base/nsContentUtils.h
@@ -2723,6 +2723,11 @@ public:
static void SetupCustomElement(Element* aElement,
const nsAString* aTypeExtension = nullptr);
+ static mozilla::dom::CustomElementDefinition*
+ GetElementDefinitionIfObservingAttr(Element* aCustomElement,
+ nsIAtom* aExtensionType,
+ nsIAtom* aAttrName);
+
static void EnqueueLifecycleCallback(nsIDocument* aDoc,
nsIDocument::ElementCallbackType aType,
Element* aCustomElement,
diff --git a/dom/tests/mochitest/webcomponents/mochitest.ini b/dom/tests/mochitest/webcomponents/mochitest.ini
index 3ab56de95..76c8abc38 100644
--- a/dom/tests/mochitest/webcomponents/mochitest.ini
+++ b/dom/tests/mochitest/webcomponents/mochitest.ini
@@ -19,6 +19,7 @@ support-files =
htmlconstructor_builtin_tests.js
[test_custom_element_import_node_created_callback.html]
[test_custom_element_in_shadow.html]
+skip-if = true || stylo # disabled - See bug 1390396 and 1293844
[test_custom_element_register_invalid_callbacks.html]
[test_custom_element_get.html]
[test_custom_element_when_defined.html]
@@ -33,8 +34,10 @@ support-files =
[test_document_register.html]
[test_document_register_base_queue.html]
[test_document_register_lifecycle.html]
+skip-if = true # disabled - See bug 1390396
[test_document_register_parser.html]
[test_document_register_stack.html]
+skip-if = true # disabled - See bug 1390396
[test_document_shared_registry.html]
[test_event_dispatch.html]
[test_event_retarget.html]
diff --git a/testing/web-platform/meta/custom-elements/CustomElementRegistry.html.ini b/testing/web-platform/meta/custom-elements/CustomElementRegistry.html.ini
index 29be90bea..3f9f66d17 100644
--- a/testing/web-platform/meta/custom-elements/CustomElementRegistry.html.ini
+++ b/testing/web-platform/meta/custom-elements/CustomElementRegistry.html.ini
@@ -6,18 +6,6 @@
[customElements.define must get "observedAttributes" property on the constructor prototype when "attributeChangedCallback" is present]
expected: FAIL
- [customElements.define must rethrow an exception thrown while getting observedAttributes on the constructor prototype]
- expected: FAIL
-
- [customElements.define must rethrow an exception thrown while converting the value of observedAttributes to sequence<DOMString>]
- expected: FAIL
-
- [customElements.define must rethrow an exception thrown while iterating over observedAttributes to sequence<DOMString>]
- expected: FAIL
-
- [customElements.define must rethrow an exception thrown while retrieving Symbol.iterator on observedAttributes]
- expected: FAIL
-
[customElements.define must upgrade elements in the shadow-including tree order]
expected: FAIL
diff --git a/testing/web-platform/meta/custom-elements/HTMLElement-constructor.html.ini b/testing/web-platform/meta/custom-elements/HTMLElement-constructor.html.ini
new file mode 100644
index 000000000..0d2d4374f
--- /dev/null
+++ b/testing/web-platform/meta/custom-elements/HTMLElement-constructor.html.ini
@@ -0,0 +1,11 @@
+[HTMLElement-constructor.html]
+ type: testharness
+ [HTMLElement constructor must infer the tag name from the element interface]
+ expected: FAIL
+
+ [HTMLElement constructor must allow subclassing a custom element]
+ expected: FAIL
+
+ [HTMLElement constructor must allow subclassing an user-defined subclass of HTMLElement]
+ expected: FAIL
+
diff --git a/testing/web-platform/meta/custom-elements/attribute-changed-callback.html.ini b/testing/web-platform/meta/custom-elements/attribute-changed-callback.html.ini
index 10eea70b2..1b1bea6c9 100644
--- a/testing/web-platform/meta/custom-elements/attribute-changed-callback.html.ini
+++ b/testing/web-platform/meta/custom-elements/attribute-changed-callback.html.ini
@@ -12,21 +12,5 @@
[setAttributeNode and removeAttributeNS must enqueue and invoke attributeChangedCallback for an SVG attribute]
expected: FAIL
- [Mutating attributeChangedCallback after calling customElements.define must not affect the callback being invoked]
- expected: FAIL
-
- [attributedChangedCallback must not be invoked when the observed attributes does not contain the attribute]
- expected: FAIL
-
- [Mutating observedAttributes after calling customElements.define must not affect the set of attributes for which attributedChangedCallback is invoked]
- expected: FAIL
-
- [attributedChangedCallback must be enqueued for attributes specified in a non-Array iterable observedAttributes]
- expected: FAIL
-
[attributedChangedCallback must be enqueued for style attribute change by mutating inline style declaration]
expected: FAIL
-
- [attributedChangedCallback must not be enqueued when mutating inline style declaration if the style attribute is not observed]
- expected: FAIL
-
diff --git a/testing/web-platform/meta/custom-elements/htmlconstructor/newtarget.html.ini b/testing/web-platform/meta/custom-elements/htmlconstructor/newtarget.html.ini
new file mode 100644
index 000000000..f77a64e1d
--- /dev/null
+++ b/testing/web-platform/meta/custom-elements/htmlconstructor/newtarget.html.ini
@@ -0,0 +1,14 @@
+[newtarget.html]
+ type: testharness
+ [Use NewTarget's prototype, not the one stored at definition time]
+ expected: FAIL
+
+ [Rethrow any exceptions thrown while getting the prototype]
+ expected: FAIL
+
+ [If prototype is not object, derives the fallback from NewTarget's realm (autonomous custom elements)]
+ expected: FAIL
+
+ [If prototype is not object, derives the fallback from NewTarget's realm (customized built-in elements)]
+ expected: FAIL
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-04 11:27:06 +0000