Implement DOM: prepend, append, before, after & replaceWith

Source/core/dom/Node.cpp

Index: Source/core/dom/Node.cpp
diff --git a/Source/core/dom/Node.cpp b/Source/core/dom/Node.cpp
index 56fb995d78a7033954fdda8b5b547b0d8d05500c..465b98c7f5f66e633693a02f86dd281f60d2e68f 100644
--- a/Source/core/dom/Node.cpp
+++ b/Source/core/dom/Node.cpp
@@ -382,6 +382,26 @@ void Node::clearRareData()
 }
 #endif
 
+PassRefPtrWillBeRawPtr<Node> Node::mutationMethodMacro(const HeapVector<NodeOrString>& nodes)
+{
+    RefPtrWillBeRawPtr<Node> node;
+    if (nodes.size() == 1) {

[philipj_slow, 2015/06/09 12:48:32]

If the bindings guarantees that nodes.size()!=0 here, please ASSERT it, as
otherwise one wonders if an empty DocumentFragment is the right thing for when
there are no arguments. Also make sure to test the zero-argument case.

[Paritosh Kumar, 2015/06/12 15:55:37]

Updated as per new specs.

+        if (nodes[0].isNode())
+            node = nodes[0].getAsNode();
+        else
+            node = Text::create(document(), nodes[0].getAsString());
+    } else {
+        node = DocumentFragment::create(document());
+        for (const NodeOrString& nodeOrString : nodes) {
+            if (nodeOrString.isNode())
+                node->appendChild(nodeOrString.getAsNode(), ASSERT_NO_EXCEPTION);
+            else
+                node->appendChild(Text::create(document(), nodeOrString.getAsString()), ASSERT_NO_EXCEPTION);
+        }
+    }
+    return node.release();
+}
+
 Node* Node::toNode()
 {
     return this;
@@ -501,6 +521,45 @@ PassRefPtrWillBeRawPtr<Node> Node::appendChild(PassRefPtrWillBeRawPtr<Node> newC
     return nullptr;
 }
 
+void Node::prepend(const HeapVector<NodeOrString>& nodes, ExceptionState& exceptionState)
+{
+    RefPtrWillBeRawPtr<Node> nodeToPrepend = mutationMethodMacro(nodes);
+    this->insertBefore(nodeToPrepend, this->firstChild(), exceptionState);
+}
+
+void Node::append(const HeapVector<NodeOrString>& nodes, ExceptionState& exceptionState)
+{
+    RefPtrWillBeRawPtr<Node> nodeToAppend = mutationMethodMacro(nodes);
+    this->appendChild(nodeToAppend, exceptionState);
+}
+
+void Node::before(const HeapVector<NodeOrString>& nodes, ExceptionState& exceptionState)
+{
+    Node* parent = parentNode();
+    if (!parent)
+        return;
+    RefPtrWillBeRawPtr<Node> nodeToInsert = mutationMethodMacro(nodes);
+    parent->insertBefore(nodeToInsert, this, exceptionState);
+}
+
+void Node::after(const HeapVector<NodeOrString>& nodes, ExceptionState& exceptionState)
+{
+    Node* parent = parentNode();
+    if (!parent)
+        return;
+    RefPtrWillBeRawPtr<Node> nodeToInsert = mutationMethodMacro(nodes);
+    parent->insertBefore(nodeToInsert, this->nextSibling(), exceptionState);
+}
+
+void Node::replaceWith(const HeapVector<NodeOrString>& nodes, ExceptionState& exceptionState)
+{
+    Node* parent = parentNode();
+    if (!parent)
+        return;
+    RefPtrWillBeRawPtr<Node> nodeToReplaceWith = mutationMethodMacro(nodes);
+    parent->replaceChild(nodeToReplaceWith, this, exceptionState);
+}
+
 void Node::remove(ExceptionState& exceptionState)
 {
     if (ContainerNode* parent = parentNode())