webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 116 insertions, 0 deletions

diff --git a/Source/WebCore/dom/CustomElementRegistry.cpp b/Source/WebCore/dom/CustomElementRegistry.cpp
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+++ b/Source/WebCore/dom/CustomElementRegistry.cpp
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+/*
+ * Copyright (C) 2015, 2016 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "CustomElementRegistry.h"
+
+#include "CustomElementReactionQueue.h"
+#include "DOMWindow.h"
+#include "Document.h"
+#include "Element.h"
+#include "ElementTraversal.h"
+#include "JSCustomElementInterface.h"
+#include "MathMLNames.h"
+#include "QualifiedName.h"
+#include "ShadowRoot.h"
+#include <runtime/JSCJSValueInlines.h>
+#include <wtf/text/AtomicString.h>
+
+namespace WebCore {
+
+Ref<CustomElementRegistry> CustomElementRegistry::create(DOMWindow& window)
+{
+    return adoptRef(*new CustomElementRegistry(window));
+}
+
+CustomElementRegistry::CustomElementRegistry(DOMWindow& window)
+    : m_window(window)
+{ }
+
+CustomElementRegistry::~CustomElementRegistry()
+{ }
+
+// https://dom.spec.whatwg.org/#concept-shadow-including-tree-order
+static void enqueueUpgradeInShadowIncludingTreeOrder(ContainerNode& node, JSCustomElementInterface& elementInterface)
+{
+    for (Element* element = ElementTraversal::firstWithin(node); element; element = ElementTraversal::next(*element)) {
+        if (element->isCustomElementUpgradeCandidate() && element->tagQName() == elementInterface.name())
+            element->enqueueToUpgrade(elementInterface);
+        if (auto* shadowRoot = element->shadowRoot()) {
+            if (shadowRoot->mode() != ShadowRootMode::UserAgent)
+                enqueueUpgradeInShadowIncludingTreeOrder(*shadowRoot, elementInterface);
+        }
+    }
+}
+
+void CustomElementRegistry::addElementDefinition(Ref<JSCustomElementInterface>&& elementInterface)
+{
+    AtomicString localName = elementInterface->name().localName();
+    ASSERT(!m_nameMap.contains(localName));
+    m_constructorMap.add(elementInterface->constructor(), elementInterface.ptr());
+    m_nameMap.add(localName, elementInterface.copyRef());
+
+    if (auto* document = m_window.document())
+        enqueueUpgradeInShadowIncludingTreeOrder(*document, elementInterface.get());
+
+    if (auto promise = m_promiseMap.take(localName))
+        promise.value()->resolve();
+}
+
+JSCustomElementInterface* CustomElementRegistry::findInterface(const Element& element) const
+{
+    return findInterface(element.tagQName());
+}
+
+JSCustomElementInterface* CustomElementRegistry::findInterface(const QualifiedName& name) const
+{
+    if (name.namespaceURI() != HTMLNames::xhtmlNamespaceURI)
+        return nullptr;
+    return m_nameMap.get(name.localName());
+}
+
+JSCustomElementInterface* CustomElementRegistry::findInterface(const AtomicString& name) const
+{
+    return m_nameMap.get(name);
+}
+
+JSCustomElementInterface* CustomElementRegistry::findInterface(const JSC::JSObject* constructor) const
+{
+    return m_constructorMap.get(constructor);
+}
+
+bool CustomElementRegistry::containsConstructor(const JSC::JSObject* constructor) const
+{
+    return m_constructorMap.contains(constructor);
+}
+
+JSC::JSValue CustomElementRegistry::get(const AtomicString& name)
+{
+    if (auto* elementInterface = m_nameMap.get(name))
+        return elementInterface->constructor();
+    return JSC::jsUndefined();
+}
+
+}