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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 <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, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
{
if (!implementation)
return v8Undefined();
return toV8(implementation, creationContext, isolate);
}
template<class Collection> static Collection* toNativeCollection(v8::Local<v8::Object> object)
{
return reinterpret_cast<Collection*>(object->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex));
}
template<class T> static v8::Handle<v8::Value> getV8Object(PassRefPtr<T> implementation, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
{
return getV8Object(implementation.get(), creationContext, isolate);
}
// 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, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
{
// FIXME: assert object is a collection type
ASSERT(V8DOMWrapper::maybeDOMWrapper(object));
ASSERT(V8DOMWrapper::domWrapperType(object) != &V8Node::info);
Collection* collection = toNativeCollection<Collection>(object);
AtomicString propertyName = toWebCoreAtomicStringWithNullCheck(name);
return getV8Object<ItemType>(collection->namedItem(propertyName), creationContext, isolate);
}
// 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)
{
if (!info.Holder()->GetRealNamedPropertyInPrototypeChain(name).IsEmpty())
return v8Undefined();
if (info.Holder()->HasRealNamedCallbackProperty(name))
return v8Undefined();
return getNamedPropertyOfCollection<Collection, ItemType>(name, info.Holder(), info.Holder(), info.GetIsolate());
}
// 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, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
{
// 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), creationContext, isolate);
}
// 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(), info.Holder(), info.GetIsolate());
}
// 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 = v8Integer(i, info.GetIsolate());
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 = v8Integer(i, info.GetIsolate());
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> collectionStringOrUndefinedIndexedPropertyGetter(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 v8StringOrUndefined(result, info.GetIsolate());
}
// 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, info.GetIsolate());
}
// 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 setCollectionStringOrUndefinedIndexedGetter(v8::Handle<v8::FunctionTemplate> desc)
{
desc->InstanceTemplate()->SetIndexedPropertyHandler(collectionStringOrUndefinedIndexedPropertyGetter<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*, v8::Isolate*);
} // namespace WebCore
#endif // V8Collection_h
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