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+/*
+ * Copyright (C) 2006, 2007, 2008, 2009 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.
+ */
+
+#ifndef V8Collection_h
+#define V8Collection_h
+
+#include "HTMLFormElement.h"
+#include "HTMLSelectElement.h"
+#include "V8Binding.h"
+#include "V8Node.h"
+#include "V8Proxy.h"
+#include <v8.h>
+
+namespace WebCore {
+// FIXME: These functions should be named using to* since they return the item (get* is used for method that take a ref param).
+// See https://bugs.webkit.org/show_bug.cgi?id=24664.
+
+template<class T> static v8::Handle<v8::Value> getV8Object(T* implementation)
+{
+    if (!implementation)
+        return v8::Handle<v8::Value>();
+    return toV8(implementation);
+}
+
+template<class Collection> static Collection* toNativeCollection(v8::Local<v8::Object> object)
+{
+    return reinterpret_cast<Collection*>(object->GetPointerFromInternalField(v8DOMWrapperObjectIndex));
+}
+
+template<class T> static v8::Handle<v8::Value> getV8Object(PassRefPtr<T> implementation)
+{
+    return getV8Object(implementation.get());
+}
+
+// Returns named property of a collection.
+template<class Collection, class ItemType> static v8::Handle<v8::Value> getNamedPropertyOfCollection(v8::Local<v8::String> name, v8::Local<v8::Object> object)
+{
+    // FIXME: assert object is a collection type
+    ASSERT(V8DOMWrapper::maybeDOMWrapper(object));
+    ASSERT(V8DOMWrapper::domWrapperType(object) != &V8Node::info);
+    Collection* collection = toNativeCollection<Collection>(object);
+    AtomicString propertyName = toAtomicWebCoreStringWithNullCheck(name);
+    return getV8Object<ItemType>(collection->namedItem(propertyName));
+}
+
+// A template of named property accessor of collections.
+template<class Collection, class ItemType> static v8::Handle<v8::Value> collectionNamedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
+{
+    v8::Handle<v8::Value> value = info.Holder()->GetRealNamedPropertyInPrototypeChain(name);
+
+    if (!value.IsEmpty())
+        return value;
+
+    // Search local callback properties next to find IDL defined
+    // properties.
+    if (info.Holder()->HasRealNamedCallbackProperty(name))
+        return notHandledByInterceptor();
+    return getNamedPropertyOfCollection<Collection, ItemType>(name, info.Holder());
+}
+
+// Returns the property at the index of a collection.
+template<class Collection, class ItemType> static v8::Handle<v8::Value> getIndexedPropertyOfCollection(uint32_t index, v8::Local<v8::Object> object)
+{
+    // FIXME: Assert that object must be a collection type.
+    ASSERT(V8DOMWrapper::maybeDOMWrapper(object));
+    ASSERT(V8DOMWrapper::domWrapperType(object) != &V8Node::info);
+    Collection* collection = toNativeCollection<Collection>(object);
+    return getV8Object<ItemType>(collection->item(index));
+}
+
+// A template of index interceptor of collections.
+template<class Collection, class ItemType> static v8::Handle<v8::Value> collectionIndexedPropertyGetter(uint32_t index, const v8::AccessorInfo& info)
+{
+    return getIndexedPropertyOfCollection<Collection, ItemType>(index, info.Holder());
+}
+
+// Get an array containing the names of indexed properties of HTMLSelectElement and HTMLFormElement.
+template<class Collection> static v8::Handle<v8::Array> nodeCollectionIndexedPropertyEnumerator(const v8::AccessorInfo& info)
+{
+    ASSERT(V8DOMWrapper::maybeDOMWrapper(info.Holder()));
+    Collection* collection = toNativeCollection<Collection>(info.Holder());
+    int length = collection->length();
+    v8::Handle<v8::Array> properties = v8::Array::New(length);
+    for (int i = 0; i < length; ++i) {
+        // FIXME: Do we need to check that the item function returns a non-null value for this index?
+        v8::Handle<v8::Integer> integer = v8::Integer::New(i);
+        properties->Set(integer, integer);
+    }
+    return properties;
+}
+
+// Get an array containing the names of indexed properties in a collection.
+template<class Collection> static v8::Handle<v8::Array> collectionIndexedPropertyEnumerator(const v8::AccessorInfo& info)
+{
+    ASSERT(V8DOMWrapper::maybeDOMWrapper(info.Holder()));
+    Collection* collection = toNativeCollection<Collection>(info.Holder());
+    int length = collection->length();
+    v8::Handle<v8::Array> properties = v8::Array::New(length);
+    for (int i = 0; i < length; ++i) {
+        // FIXME: Do we need to check that the item function returns a non-null value for this index?
+        v8::Handle<v8::Integer> integer = v8::Integer::New(i);
+        properties->Set(integer, integer);
+    }
+    return properties;
+}
+
+
+// A template for indexed getters on collections of strings that should return null if the resulting string is a null string.
+template<class Collection> static v8::Handle<v8::Value> collectionStringOrNullIndexedPropertyGetter(uint32_t index, const v8::AccessorInfo& info)
+{
+    // FIXME: assert that object must be a collection type
+    ASSERT(V8DOMWrapper::maybeDOMWrapper(info.Holder()));
+    Collection* collection = toNativeCollection<Collection>(info.Holder());
+    String result = collection->item(index);
+    return v8StringOrNull(result);
+}
+
+
+// A template for indexed getters on collections of strings.
+template<class Collection> static v8::Handle<v8::Value> collectionStringIndexedPropertyGetter(uint32_t index, const v8::AccessorInfo& info)
+{
+    // FIXME: assert that object must be a collection type
+    ASSERT(V8DOMWrapper::maybeDOMWrapper(info.Holder()));
+    Collection* collection = toNativeCollection<Collection>(info.Holder());
+    String result = collection->item(index);
+    return v8String(result);
+}
+
+
+// Add indexed getter to the function template for a collection.
+template<class Collection, class ItemType> static void setCollectionIndexedGetter(v8::Handle<v8::FunctionTemplate> desc)
+{
+    desc->InstanceTemplate()->SetIndexedPropertyHandler(collectionIndexedPropertyGetter<Collection, ItemType>, 0, 0, 0, collectionIndexedPropertyEnumerator<Collection>);
+}
+
+
+// Add named getter to the function template for a collection.
+template<class Collection, class ItemType> static void setCollectionNamedGetter(v8::Handle<v8::FunctionTemplate> desc)
+{
+    desc->InstanceTemplate()->SetNamedPropertyHandler(collectionNamedPropertyGetter<Collection, ItemType>, 0, 0, 0, 0);
+}
+
+// Add indexed getter returning a string or null to a function template for a collection.
+template<class Collection> static void setCollectionStringOrNullIndexedGetter(v8::Handle<v8::FunctionTemplate> desc)
+{
+    desc->InstanceTemplate()->SetIndexedPropertyHandler(collectionStringOrNullIndexedPropertyGetter<Collection>, 0, 0, 0, collectionIndexedPropertyEnumerator<Collection>);
+}
+
+
+// Add indexed getter returning a string to a function template for a collection.
+template<class Collection> static void setCollectionStringIndexedGetter(v8::Handle<v8::FunctionTemplate> desc)
+{
+    desc->InstanceTemplate()->SetIndexedPropertyHandler(collectionStringIndexedPropertyGetter<Collection>, 0, 0, 0, collectionIndexedPropertyEnumerator<Collection>);
+}
+
+v8::Handle<v8::Value> toOptionsCollectionSetter(uint32_t index, v8::Handle<v8::Value>, HTMLSelectElement*);
+
+} // namespace WebCore
+
+#endif // V8Collection_h