webengine/osswebengine/WebCore/bindings/js/JSNodeCustom.cpp
changeset 0 dd21522fd290
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/bindings/js/JSNodeCustom.cpp	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,221 @@
+/*
+ * Copyright (C) 2007 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 COMPUTER, 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 COMPUTER, 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 "JSNode.h"
+
+#include "Attr.h"
+#include "CDATASection.h"
+#include "Comment.h"
+#include "Document.h"
+#include "DocumentFragment.h"
+#include "DocumentType.h"
+#include "Entity.h"
+#include "EntityReference.h"
+#include "HTMLElement.h"
+#include "JSAttr.h"
+#include "JSCDATASection.h"
+#include "JSComment.h"
+#include "JSDocument.h"
+#include "JSDocumentFragment.h"
+#include "JSDocumentType.h"
+#include "JSEntity.h"
+#include "JSEntityReference.h"
+#include "JSHTMLElement.h"
+#include "JSHTMLElementWrapperFactory.h"
+#include "JSNotation.h"
+#include "JSProcessingInstruction.h"
+#include "JSText.h"
+#include "Node.h"
+#include "Notation.h"
+#include "ProcessingInstruction.h"
+#include "Text.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefPtr.h>
+
+#if ENABLE(SVG)
+#include "JSSVGElementWrapperFactory.h"
+#include "SVGElement.h"
+#endif
+
+namespace WebCore {
+
+typedef int ExpectionCode;
+
+KJS::JSValue* JSNode::insertBefore(KJS::ExecState* exec, const KJS::List& args)
+{
+    ExceptionCode ec = 0;
+    bool ok = impl()->insertBefore(toNode(args[0]), toNode(args[1]), ec);
+    KJS::setDOMException(exec, ec);
+    if (ok)
+        return args[0];
+    return KJS::jsNull();
+}
+
+KJS::JSValue* JSNode::replaceChild(KJS::ExecState* exec, const KJS::List& args)
+{
+    ExceptionCode ec = 0;
+    bool ok = impl()->replaceChild(toNode(args[0]), toNode(args[1]), ec);
+    KJS::setDOMException(exec, ec);
+    if (ok)
+        return args[1];
+    return KJS::jsNull();
+}
+
+KJS::JSValue* JSNode::removeChild(KJS::ExecState* exec, const KJS::List& args)
+{
+    ExceptionCode ec = 0;
+    bool ok = impl()->removeChild(toNode(args[0]), ec);
+    KJS::setDOMException(exec, ec);
+    if (ok)
+        return args[0];
+    return KJS::jsNull();
+}
+
+KJS::JSValue* JSNode::appendChild(KJS::ExecState* exec, const KJS::List& args)
+{
+    ExceptionCode ec = 0;
+    bool ok = impl()->appendChild(toNode(args[0]), ec);
+    KJS::setDOMException(exec, ec);
+    if (ok)
+        return args[0];
+    return KJS::jsNull();
+}
+
+void JSNode::mark()
+{
+    ASSERT(!marked());
+
+    Node* node = m_impl.get();
+
+    // Nodes in the document are kept alive by ScriptInterpreter::mark,
+    // so we have no special responsibilities and can just call the base class here.
+    if (node->inDocument()) {
+        DOMObject::mark();
+        return;
+    }
+
+    // This is a node outside the document, so find the root of the tree it is in,
+    // and start marking from there.
+    Node* root = node;
+    for (Node* current = m_impl.get(); current; current = current->parentNode())
+        root = current;
+
+    // If we're already marking this tree, then we can simply mark this wrapper
+    // by calling the base class; our caller is iterating the tree.
+    if (root->m_inSubtreeMark) {
+        DOMObject::mark();
+        return;
+    }
+
+    // Mark the whole tree; use the global set of roots to avoid reentering.
+    root->m_inSubtreeMark = true;
+    for (Node* nodeToMark = root; nodeToMark; nodeToMark = nodeToMark->traverseNextNode()) {
+        JSNode* wrapper = KJS::ScriptInterpreter::getDOMNodeForDocument(m_impl->document(), nodeToMark);
+        if (wrapper) {
+            if (!wrapper->marked())
+                wrapper->mark();
+        } else if (nodeToMark == node) {
+            // This is the case where the map from the document to wrappers has
+            // been cleared out, but a wrapper is being marked. For now, we'll
+            // let the rest of the tree of wrappers get collected, because we have
+            // no good way of finding them. Later we should test behavior of other
+            // browsers and see if we need to preserve other wrappers in this case.
+            if (!marked())
+                mark();
+        }
+    }
+    root->m_inSubtreeMark = false;
+
+    // Double check that we actually ended up marked. This assert caught problems in the past.
+    ASSERT(marked());
+}
+
+KJS::JSValue* toJS(KJS::ExecState* exec, PassRefPtr<Node> n)
+{
+    Node* node = n.get(); 
+    if (!node)
+        return KJS::jsNull();
+
+    KJS::ScriptInterpreter* interp = static_cast<KJS::ScriptInterpreter*>(exec->dynamicInterpreter());
+    Document* doc = node->document();
+    JSNode* ret = interp->getDOMNodeForDocument(doc, node);
+    if (ret)
+        return ret;
+
+    switch (node->nodeType()) {
+        case Node::ELEMENT_NODE:
+            if (node->isHTMLElement())
+                ret = createJSHTMLWrapper(exec, static_pointer_cast<HTMLElement>(n));
+#if ENABLE(SVG)
+            else if (node->isSVGElement())
+                ret = createJSSVGWrapper(exec, static_pointer_cast<SVGElement>(n));
+#endif
+            else
+                ret = new JSElement(exec, static_cast<Element*>(node));
+            break;
+        case Node::ATTRIBUTE_NODE:
+            ret = new JSAttr(exec, static_cast<Attr*>(node));
+            break;
+        case Node::TEXT_NODE:
+            ret = new JSText(exec, static_cast<Text*>(node));
+            break;
+        case Node::CDATA_SECTION_NODE:
+            ret = new JSCDATASection(exec, static_cast<CDATASection*>(node));
+            break;
+        case Node::ENTITY_NODE:
+            ret = new JSEntity(exec, static_cast<Entity*>(node));
+            break;
+        case Node::PROCESSING_INSTRUCTION_NODE:
+            ret = new JSProcessingInstruction(exec, static_cast<ProcessingInstruction*>(node));
+            break;
+        case Node::COMMENT_NODE:
+            ret = new JSComment(exec, static_cast<Comment*>(node));
+            break;
+        case Node::DOCUMENT_NODE:
+            // we don't want to cache the document itself in the per-document dictionary
+            return toJS(exec, static_cast<Document*>(node));
+        case Node::DOCUMENT_TYPE_NODE:
+            ret = new JSDocumentType(exec, static_cast<DocumentType*>(node));
+            break;
+        case Node::NOTATION_NODE:
+            ret = new JSNotation(exec, static_cast<Notation*>(node));
+            break;
+        case Node::DOCUMENT_FRAGMENT_NODE:
+            ret = new JSDocumentFragment(exec, static_cast<DocumentFragment*>(node));
+            break;
+        case Node::ENTITY_REFERENCE_NODE:
+            ret = new JSEntityReference(exec, static_cast<EntityReference*>(node));
+            break;
+        default:
+            ret = new JSNode(exec, node);
+    }
+
+    interp->putDOMNodeForDocument(doc, node, ret);
+
+    return ret;
+}
+
+} // namespace WebCore