Dart bindings for WebKit

Source/WebCore/bindings/dart/custom/DartNodeCustom.cpp

+// Copyright 2011, 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 "DartNode.h"
+
+#include "DartAttr.h"
+#include "DartCDATASection.h"
+#include "DartComment.h"
+#include "DartDOMWrapper.h"
+#include "DartDocument.h"
+#include "DartDocumentFragment.h"
+#include "DartDocumentType.h"
+#include "DartElement.h"
+#include "DartEntity.h"
+#include "DartEntityReference.h"
+#include "DartNode.h"
+#include "DartNotation.h"
+#include "DartProcessingInstruction.h"
+#include "DartText.h"
+
+namespace WebCore {
+
+namespace DartNodeInternal {
+
+// This function is customized to take advantage of the optional 4th argument: shouldLazyAttach.
+void insertBeforeCallback(Dart_NativeArguments args)
+{
+    DartApiScope dartApiScope;
+    Dart_Handle exception;
+    {
+        Node* receiver = DartDOMWrapper::receiver<Node>(args);
+
+        const ParameterAdapter<RefPtr<Node>, DartNode> newChild(Dart_GetNativeArgument(args, 1));
+        if (!newChild.conversionSuccessful()) {
+            exception = newChild.exception();
+            goto fail;
+        }
+
+        const ParameterAdapter<RefPtr<Node>, DartNode> refChild(Dart_GetNativeArgument(args, 2));
+        if (!refChild.conversionSuccessful()) {
+            exception = refChild.exception();
+            goto fail;
+        }
+
+        ExceptionCode ec = 0;
+        bool success = receiver->insertBefore(newChild, refChild, ec, true);
+        if (ec) {
+            exception = DartDOMWrapper::exceptionCodeToDartException(ec);
+            goto fail;
+        }
+
+        if (success)
+            DartDOMWrapper::returnValue<Node*>(args, newChild);
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+// This function is customized to take advantage of the optional 4th argument: shouldLazyAttach.
+void replaceChildCallback(Dart_NativeArguments args)
+{
+    DartApiScope dartApiScope;
+    Dart_Handle exception;
+    {
+        Node* receiver = DartDOMWrapper::receiver<Node>(args);
+
+        const ParameterAdapter<RefPtr<Node>, DartNode> newChild(Dart_GetNativeArgument(args, 1));
+        if (!newChild.conversionSuccessful()) {
+            exception = newChild.exception();
+            goto fail;
+        }
+
+        const ParameterAdapter<RefPtr<Node>, DartNode> oldChild(Dart_GetNativeArgument(args, 2));
+        if (!oldChild.conversionSuccessful()) {
+            exception = oldChild.exception();
+            goto fail;
+        }
+
+        ExceptionCode ec = 0;
+        bool success = receiver->replaceChild(newChild, oldChild, ec, true);
+        if (ec) {
+            exception = DartDOMWrapper::exceptionCodeToDartException(ec);
+            goto fail;
+        }
+
+        if (success)
+            DartDOMWrapper::returnValue<Node*>(args, newChild);
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+// Custom handling of the return value.
+void removeChildCallback(Dart_NativeArguments args)
+{
+    DartApiScope dartApiScope;
+    Dart_Handle exception;
+    {
+        Node* receiver = DartDOMWrapper::receiver<Node>(args);
+
+        const ParameterAdapter<RefPtr<Node>, DartNode> child(Dart_GetNativeArgument(args, 1));
+        if (!child.conversionSuccessful()) {
+            exception = child.exception();
+            goto fail;
+        }
+
+        ExceptionCode ec = 0;
+        bool success = receiver->removeChild(child, ec);
+        if (ec) {
+            exception = DartDOMWrapper::exceptionCodeToDartException(ec);
+            goto fail;
+        }
+
+        if (success)
+            DartDOMWrapper::returnValue<Node*>(args, child);
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+// This function is customized to enable lazy attaching - see the last argument to appendChild.
+void appendChildCallback(Dart_NativeArguments args)
+{
+    DartApiScope dartApiScope;
+    Dart_Handle exception;
+    {
+        Node* receiver = DartDOMWrapper::receiver<Node>(args);
+
+        const ParameterAdapter<RefPtr<Node>, DartNode> child(Dart_GetNativeArgument(args, 1));
+        if (!child.conversionSuccessful()) {
+            exception = child.exception();
+            goto fail;
+        }
+
+        ExceptionCode ec = 0;
+        bool success = receiver->appendChild(child, ec, true);
+        if (ec) {
+            exception = DartDOMWrapper::exceptionCodeToDartException(ec);
+            goto fail;
+        }
+
+        if (success)
+            DartDOMWrapper::returnValue<Node*>(args, child);
+        return;
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
+}
+
+}
+
+Dart_Handle toDartValue(Node* node)
+{
+    if (!node)
+        return 0;
+
+    switch (node->nodeType()) {
+    case Node::ELEMENT_NODE:
+        return toDartValue(static_cast<Element*>(node));
+    case Node::ATTRIBUTE_NODE:
+        return toDartValue(static_cast<Attr*>(node));
+    case Node::TEXT_NODE:
+        return toDartValue(static_cast<Text*>(node));
+    case Node::CDATA_SECTION_NODE:
+        return toDartValue(static_cast<CDATASection*>(node));
+    case Node::ENTITY_REFERENCE_NODE:
+        return toDartValue(static_cast<EntityReference*>(node));
+    case Node::ENTITY_NODE:
+        return toDartValue(static_cast<Entity*>(node));
+    case Node::PROCESSING_INSTRUCTION_NODE:
+        return toDartValue(static_cast<ProcessingInstruction*>(node));
+    case Node::COMMENT_NODE:
+        return toDartValue(static_cast<Comment*>(node));
+    case Node::DOCUMENT_NODE:
+        return toDartValue(static_cast<Document*>(node));
+    case Node::DOCUMENT_TYPE_NODE:
+        return toDartValue(static_cast<DocumentType*>(node));
+    case Node::DOCUMENT_FRAGMENT_NODE:
+        return toDartValue(static_cast<DocumentFragment*>(node));
+    case Node::NOTATION_NODE:
+        return toDartValue(static_cast<Notation*>(node));
+    case Node::SHADOW_ROOT_NODE: // There's no IDL class for ShadowRoot, fall-through to default and use Node instead.
+    default: break; // XPATH_NAMESPACE_NODE
+    }
+    return DartDOMWrapper::toDart<DartNode>(node);
+}
+
+}