Bug 1378079 - Part 3: Complete the steps related to custom elements in "create an element for a token".

With fixup for missing header due to unified builds.

Tag UXP Issue #1344

6 files changed, 31 insertions, 59 deletions

diff --git a/dom/base/CustomElementRegistry.cpp b/dom/base/CustomElementRegistry.cpp
index 0f03b16bda..f17c2c7d9e 100644
--- a/dom/base/CustomElementRegistry.cpp
+++ b/dom/base/CustomElementRegistry.cpp
@@ -1044,8 +1044,12 @@ CustomElementReactionsStack::PopAndInvokeElementQueue()
     // element, see https://github.com/w3c/webcomponents/issues/635.
     // We usually report the error to entry global in gecko, so just follow the
     // same behavior here.
+    // This may be null if it's called from parser, see the case of
+    // attributeChangedCallback in
+    // https://html.spec.whatwg.org/multipage/parsing.html#create-an-element-for-the-token
+    // In that case, the exception of callback reactions will be automatically
+    // reported in CallSetup.
     nsIGlobalObject* global = GetEntryGlobal();
-    MOZ_ASSERT(global, "Should always have a entry global here!");
     InvokeReactions(elementQueue, global);
   }
 
diff --git a/dom/base/nsContentCreatorFunctions.h b/dom/base/nsContentCreatorFunctions.h
index 9576d9ba8c..a5c210500b 100644
--- a/dom/base/nsContentCreatorFunctions.h
+++ b/dom/base/nsContentCreatorFunctions.h
@@ -24,6 +24,7 @@ namespace mozilla {
 namespace dom {
 class Element;
 class NodeInfo;
+struct CustomElementDefinition;
 } // namespace dom
 } // namespace mozilla
 
@@ -41,7 +42,8 @@ nsresult
 NS_NewHTMLElement(mozilla::dom::Element** aResult,
                   already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
                   mozilla::dom::FromParser aFromParser,
-                  const nsAString* aIs = nullptr);
+                  const nsAString* aIs = nullptr,
+                  mozilla::dom::CustomElementDefinition* aDefinition = nullptr);
 
 // First argument should be nsHTMLTag, but that adds dependency to parser
 // for a bunch of files.
diff --git a/dom/html/nsHTMLContentSink.cpp b/dom/html/nsHTMLContentSink.cpp
index 2827f5ff6b..518a3675e5 100644
--- a/dom/html/nsHTMLContentSink.cpp
+++ b/dom/html/nsHTMLContentSink.cpp
@@ -255,7 +255,8 @@ DoCustomElementCreate(Element** aElement, nsIDocument* aDoc, nsIAtom* aLocalName
 
 nsresult
 NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
-                  FromParser aFromParser, const nsAString* aIs)
+                  FromParser aFromParser, const nsAString* aIs,
+                  mozilla::dom::CustomElementDefinition* aDefinition)
 {
   *aResult = nullptr;
 
@@ -276,8 +277,8 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
   // We only handle the "synchronous custom elements flag is set" now.
   // For the unset case (e.g. cloning a node), see bug 1319342 for that.
   // Step 4.
-  CustomElementDefinition* definition = nullptr;
-  if (CustomElementRegistry::IsCustomElementEnabled()) {
+  CustomElementDefinition* definition = aDefinition;
+  if (!definition && CustomElementRegistry::IsCustomElementEnabled()) {
     definition =
       nsContentUtils::LookupCustomElementDefinition(nodeInfo->GetDocument(),
                                                     nodeInfo->LocalName(),
@@ -302,9 +303,20 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
     bool synchronousCustomElements = aFromParser != dom::FROM_PARSER_FRAGMENT ||
                                      aFromParser == dom::NOT_FROM_PARSER;
     // Per discussion in https://github.com/w3c/webcomponents/issues/635,
-    // use entry global in those places that are called from JS APIs.
-    nsIGlobalObject* global = GetEntryGlobal();
-    MOZ_ASSERT(global);
+    // use entry global in those places that are called from JS APIs and use the
+    // node document's global object if it is called from parser.
+    nsIGlobalObject* global;
+    if (aFromParser == dom::NOT_FROM_PARSER) {
+      global = GetEntryGlobal();
+    } else {
+      global = nodeInfo->GetDocument()->GetScopeObject();
+    }
+    if (!global) {
+      // In browser chrome code, one may have access to a document which doesn't
+      // have scope object anymore.
+      return NS_ERROR_FAILURE;
+    }
+
     AutoEntryScript aes(global, "create custom elements");
     JSContext* cx = aes.cx();
     ErrorResult rv;
@@ -344,6 +356,7 @@ NS_NewHTMLElement(Element** aResult, already_AddRefed<mozilla::dom::NodeInfo>&&
 
     // Step 6.2.
     NS_IF_ADDREF(*aResult = NS_NewHTMLElement(nodeInfo.forget(), aFromParser));
+    (*aResult)->SetCustomElementData(new CustomElementData(definition->mType));
     nsContentUtils::EnqueueUpgradeReaction(*aResult, definition);
     return NS_OK;
   }
diff --git a/dom/tests/mochitest/webcomponents/mochitest.ini b/dom/tests/mochitest/webcomponents/mochitest.ini
index e8f632e39b..b32e9999e6 100644
--- a/dom/tests/mochitest/webcomponents/mochitest.ini
+++ b/dom/tests/mochitest/webcomponents/mochitest.ini
@@ -10,6 +10,7 @@ support-files =
 [test_content_element.html]
 [test_custom_element_adopt_callbacks.html]
 [test_custom_element_callback_innerhtml.html]
+skip-if = true # disabled - See bug 1390396
 [test_custom_element_clone_callbacks_extended.html]
 [test_custom_element_htmlconstructor.html]
 skip-if = os == 'android' # bug 1323645
@@ -20,6 +21,7 @@ support-files =
 [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_throw_on_dynamic_markup_insertion.html]
 [test_custom_element_get.html]
 [test_custom_element_when_defined.html]
 [test_nested_content_element.html]
@@ -31,7 +33,6 @@ skip-if = true || stylo # disabled - See bug 1390396 and 1293844
 [test_document_adoptnode.html]
 [test_document_importnode.html]
 [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]
diff --git a/dom/tests/mochitest/webcomponents/test_document_register_base_queue.html b/dom/tests/mochitest/webcomponents/test_document_register_base_queue.html
deleted file mode 100644
index c839857b45..0000000000
--- a/dom/tests/mochitest/webcomponents/test_document_register_base_queue.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=783129
--->
-<head>
-  <title>Test for document.registerElement lifecycle callback</title>
-  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
-<script>
-var p = Object.create(HTMLElement.prototype);
-
-var createdCallbackCallCount = 0;
-
-// By the time the base element queue is processed via the microtask,
-// both x-hello elements should be in the document.
-p.createdCallback = function() {
-  var one = document.getElementById("one");
-  var two = document.getElementById("two");
-  isnot(one, null, "First x-hello element should be in the tree.");
-  isnot(two, null, "Second x-hello element should be in the tree.");
-  createdCallbackCallCount++;
-  if (createdCallbackCallCount == 2) {
-    SimpleTest.finish();
-  }
-
-  if (createdCallbackCallCount > 2) {
-    ok(false, "Created callback called too much.");
-  }
-};
-
-p.attributeChangedCallback = function(name, oldValue, newValue) {
-  ok(false, "Attribute changed callback should not be called because callbacks should not be queued until created callback invoked.");
-};
-
-document.registerElement("x-hello", { prototype: p });
-
-SimpleTest.waitForExplicitFinish();
-</script>
-</head>
-<body>
-<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=783129">Bug 783129</a>
-<x-hello id="one"></x-hello>
-<x-hello id="two"></x-hello>
-<script>
-</script>
-</body>
-</html>
diff --git a/dom/tests/mochitest/webcomponents/test_document_register_parser.html b/dom/tests/mochitest/webcomponents/test_document_register_parser.html
index bc4cdcbacb..a4fb63139f 100644
--- a/dom/tests/mochitest/webcomponents/test_document_register_parser.html
+++ b/dom/tests/mochitest/webcomponents/test_document_register_parser.html
@@ -11,7 +11,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=783129
 
 var extendedButtonProto = Object.create(HTMLButtonElement.prototype);
 var buttonCallbackCalled = false;
-extendedButtonProto.createdCallback = function() {
+extendedButtonProto.connectedCallback = function() {
   is(buttonCallbackCalled, false, "created callback for x-button should only be called once.");
   is(this.tagName, "BUTTON", "Only the <button> element should be upgraded.");
   buttonCallbackCalled = true;
@@ -21,7 +21,7 @@ document.registerElement("x-button", { prototype: extendedButtonProto, extends:
 
 var divProto = Object.create(HTMLDivElement.prototype);
 var divCallbackCalled = false;
-divProto.createdCallback = function() {
+divProto.connectedCallback = function() {
   is(divCallbackCalled, false, "created callback for x-div should only be called once.");
   is(buttonCallbackCalled, true, "crated callback should be called for x-button before x-div.");
   is(this.tagName, "X-DIV", "Only the <x-div> element should be upgraded.");