{% 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;

typedef {{namespace}}Element* (*ConstructorFunction)(
    Document&,
    {% if namespace == 'HTML' %}
    HTMLFormElement*,
    {% endif %}
    CreateElementFlags);

typedef HashMap<AtomicString, ConstructorFunction> FunctionMap;

static FunctionMap* g_constructors = 0;

{% for tag in tags|sort if not tag.noConstructor %}
static {{namespace}}Element* {{tag|symbol}}Constructor(
    Document& document,
    {% if namespace == 'HTML' %}
    HTMLFormElement* formElement,
    {% endif %}
    CreateElementFlags flags)
{
    {% if tag.runtimeEnabled %}
    if (!RuntimeEnabledFeatures::{{tag.runtimeEnabled}}Enabled())
        return {{fallback_interface}}::create({{tag|symbol}}Tag, document);
    {% endif %}
    return {{tag.interface}}::create(
        {%- if tag.multipleTagNames %}{{tag|symbol}}Tag, {% endif -%}
        document
        {%- if namespace == 'HTML' and tag.constructorNeedsFormElement %}, formElement{% endif -%}
        {%- if tag.constructorNeedsCreatedByParser %}, flags & CreatedByParser{% endif -%}
    );
}
{% endfor %}

struct Create{{namespace}}FunctionMapData {
  const QualifiedName& tag;
  ConstructorFunction func;
};

static void create{{namespace}}FunctionMap()
{
    ASSERT(!g_constructors);
    g_constructors = new FunctionMap;
    // Empty array initializer lists are illegal [dcl.init.aggr] and will not
    // compile in MSVC. If tags list is empty, add check to skip this.
    static const Create{{namespace}}FunctionMapData data[] = {
    {% for tag in tags|sort if not tag.noConstructor %}
        { {{tag|symbol}}Tag, {{tag|symbol}}Constructor },
    {% endfor %}
    };
    for (size_t i = 0; i < WTF_ARRAY_LENGTH(data); i++)
        g_constructors->set(data[i].tag.localName(), data[i].func);
}

{{namespace}}Element* {{namespace}}ElementFactory::create{{namespace}}Element(
    const AtomicString& localName,
    Document& document,
    {% if namespace == 'HTML' %}
    HTMLFormElement* formElement,
    {% endif %}
    CreateElementFlags flags)
{
    if (!g_constructors)
        create{{namespace}}FunctionMap();
    if (ConstructorFunction function = g_constructors->get(localName))
        return function(document, {% if namespace == 'HTML' %}formElement, {% endif %}flags);

    {% if namespace == 'HTML' %}
    if (CustomElement::shouldCreateCustomElement(document, localName))
        return CustomElement::createCustomElement(document, localName, flags);
    {% 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