Dartium changes for custom element lifecycle events.

Source/bindings/dart/DartCustomElementConstructorBuilder.cpp

+/*
+ * Copyright (C) 2013 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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 "bindings/dart/DartCustomElementConstructorBuilder.h"
+
+#include "HTMLNames.h"
+#include "SVGNames.h"
+#include "bindings/dart/DartCustomElementBinding.h"
+#include "bindings/dart/DartCustomElementLifecycleCallbacks.h"
+#include "bindings/dart/DartDOMData.h"
+#include "bindings/dart/DartUtilities.h"
+#include "bindings/v8/V8Binding.h"
+#include "core/dom/CustomElementException.h"
+#include "core/dom/Document.h"
+
+namespace WebCore {
+
+DartCustomElementConstructorBuilder::DartCustomElementConstructorBuilder(Dart_Handle customType, const AtomicString& extendsTagName, ScriptState* state, const Dictionary* options)
+    : CustomElementConstructorBuilder(state, options)
+    , m_customType(customType)
+    , m_extendsTagName(extendsTagName)
+    , m_isolate(Dart_CurrentIsolate())
+    , m_context(state->context())
+{
+    ASSERT(m_context == v8::Isolate::GetCurrent()->GetCurrentContext());
+}
+
+bool DartCustomElementConstructorBuilder::isFeatureAllowed() const
+{
+    // Check that we are in the main world
+    return DartDOMData::current()->isDOMEnabled();
+}
+
+bool DartCustomElementConstructorBuilder::validateOptions(const AtomicString& type, ExceptionState& es)
+{
+    AtomicString namespaceURI;
+
+    if (DartUtilities::isTypeSubclassOf(m_customType, DartUtilities::htmlLibraryName, "HtmlElement")) {
+        namespaceURI = HTMLNames::xhtmlNamespaceURI;
+    } else if (DartUtilities::isTypeSubclassOf(m_customType, DartUtilities::svgLibraryName, "SvgElement")) {
+        namespaceURI = SVGNames::svgNamespaceURI;
+    } else {
+        CustomElementException::throwException(CustomElementException::PrototypeDoesNotExtendHTMLElementSVGElementPrototype, type, es);
+        return false;
+    }
+
+    AtomicString localName;
+    if (!m_extendsTagName.isNull() && !m_extendsTagName.isEmpty()) {
+        localName = m_extendsTagName.lower();
+
+        // TODO: enable once we pick up Blink version 31
+        // if (!Document::isValidName(localName)) {
+        //     CustomElementException::throwException(CustomElementException::ExtendsIsInvalidName, type, es);
+        //     return false;
+        // }
+        // if (CustomElement::isValidName(localName)) {
+        //     CustomElementException::throwException(CustomElementException::ExtendsIsCustomElementName, type, es);
+        //     return false;
+        // }
+    } else {
+        localName = type;
+    }
+
+    m_localName = localName;
+    m_namespaceURI = namespaceURI;
+    return true;
+}
+
+bool DartCustomElementConstructorBuilder::findTagName(const AtomicString& customElementType, QualifiedName& tagName)
+{
+    if (!m_extendsTagName.isNull() && !m_extendsTagName.isEmpty()) {
+        tagName = QualifiedName(nullAtom, m_extendsTagName, m_namespaceURI);
+    } else {
+        tagName = QualifiedName(nullAtom, m_localName, m_namespaceURI);
+    }
+    return true;
+}
+
+PassRefPtr<CustomElementLifecycleCallbacks> DartCustomElementConstructorBuilder::createCallbacks()
+{
+    RefPtr<ScriptExecutionContext> scriptExecutionContext(toScriptExecutionContext(m_context));
+
+    m_callbacks = DartCustomElementLifecycleCallbacks::create(m_isolate, scriptExecutionContext.get());
+    return m_callbacks.get();
+}
+
+bool DartCustomElementConstructorBuilder::createConstructor(Document* document, CustomElementDefinition* definition, ExceptionState& es)
+{
+    return true;
+}
+
+bool DartCustomElementConstructorBuilder::didRegisterDefinition(CustomElementDefinition* definition) const
+{
+    return m_callbacks->setBinding(definition, DartCustomElementBinding::create(m_customType));
+}
+
+ScriptValue DartCustomElementConstructorBuilder::bindingsReturnValue() const
+{
+    // Dart does not return a constructor.
+    return ScriptValue();
+}
+} // namespace WebCore