Hook createElement for Custom Elements V1

third_party/WebKit/Source/build/scripts/templates/ElementFactory.cpp.tmpl

 {% from "macros.tmpl" import license %}
 {{ license() }}
 
 #include "{{namespace}}ElementFactory.h"
 
 #include "{{namespace}}Names.h"
 {% for tag in tags|groupby('interface') %}
 #include "core/{{namespace|lower}}/{{tag[0]}}.h"
 {% endfor %}
 {% if fallback_interface %}
 #include "core/{{namespace|lower}}/{{fallback_interface}}.h"
 {% endif %}
+{% if namespace == 'HTML' %}
+#include "core/dom/custom/CustomElement.h"
+{% endif %}
 #include "core/dom/custom/V0CustomElement.h"
 #include "core/dom/custom/V0CustomElementRegistrationContext.h"
 #include "core/dom/Document.h"
 #include "core/frame/Settings.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "wtf/HashMap.h"
 
 namespace blink {
 
 using namespace {{namespace}}Names;
@@ skipping 56 matching lines @@
     {% if namespace == 'HTML' %}
     HTMLFormElement* formElement,
     {% endif %}
     bool createdByParser)
 {
     if (!g_constructors)
         create{{namespace}}FunctionMap();
     if (ConstructorFunction function = g_constructors->get(localName))
         return function(document, {% if namespace == 'HTML' %}formElement, {% endif %}createdByParser);
 
+    {% if namespace == 'HTML' %}
+    if (CustomElement::shouldCreateCustomElement(document, localName))

[dominicc (has gone to gerrit), 2016/05/25 05:25:52]

:/ this might do things with v0 where they did not happen before. How does this
do extra stuff and yet work? :P

[kojii, 2016/05/25 05:58:24]

Not sure if I understand correctly, but if you're talking about the case where
the element can be either v0 or v1, the v1
CustomElement::shouldCreateCustomElement() handles both. You'll see the same
logic as the one below copied to CustomElement::shouldCreateCustomElement().

...or did I misunderstand your comment?

+        return CustomElement::createCustomElement(document, localName);
+    {% endif %}
+
     if (document.registrationContext() && V0CustomElement::isValidName(localName)) {
         Element* element = document.registrationContext()->createCustomTagElement(document, QualifiedName(nullAtom, localName, {{namespace_prefix}}NamespaceURI));
         ASSERT_WITH_SECURITY_IMPLICATION(element->is{{namespace}}Element());
         return to{{namespace}}Element(element);
     }
 
     return {{fallback_interface}}::create(QualifiedName(nullAtom, localName, {{namespace_prefix}}NamespaceURI), document);
 }
 
 } // namespace blink