Implement ScriptPromise and ScriptFunction

Source/bindings/v8/ScriptFunction.h

Index: Source/bindings/v8/ScriptFunction.h
diff --git a/Source/core/testing/LayerRect.h b/Source/bindings/v8/ScriptFunction.h
similarity index 61%
copy from Source/core/testing/LayerRect.h
copy to Source/bindings/v8/ScriptFunction.h
index 4827feee4f2476d200f0a986a73c81ca9cb4d020..a47c4515b3e8e93affc72daa17ad196d0d20c6ed 100644
--- a/Source/core/testing/LayerRect.h
+++ b/Source/bindings/v8/ScriptFunction.h
@@ -28,42 +28,40 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef LayerRect_h
-#define LayerRect_h
+#ifndef ScriptFunction_h
+#define ScriptFunction_h
 
-#include "core/dom/ClientRect.h"
-
-#include "wtf/PassRefPtr.h"
+#include "bindings/v8/GarbageCollected.h"
+#include "bindings/v8/ScriptValue.h"
+#include "bindings/v8/V8Binding.h"
 #include "wtf/RefCounted.h"
-#include "wtf/RefPtr.h"
-#include "wtf/text/WTFString.h"
+#include <v8.h>
 
 namespace WebCore {
 
-class Node;
-
-class LayerRect : public RefCounted<LayerRect> {
-public:
-    static PassRefPtr<LayerRect> create(PassRefPtr<Node> node, const String& layerType, PassRefPtr<ClientRect> rect)
+class ScriptFunction : public GarbageCollected<ScriptFunction> {
+protected:
+    v8::Handle<v8::Function> releaseToV8Function()
     {
-        return adoptRef(new LayerRect(node, layerType, rect));
+        // FIXME: We need to call v8::Function::EvictFunctionFromCache after
+        // https://codereview.appspot.com/13103043/ lands.
+        return v8::FunctionTemplate::New(&callCallback, releaseToGarbageCollector())->GetFunction();
     }
 
-    Node* layerRootNode() const { return m_layerRootNode.get(); }
-    String layerType() const { return m_layerType; }
-    ClientRect* layerRelativeRect() const { return m_rect.get(); }
-
 private:
-    LayerRect(PassRefPtr<Node> node, const String& layerName, PassRefPtr<ClientRect> rect)
-        : m_layerRootNode(node)
-        , m_layerType(layerName)
-        , m_rect(rect)
+    virtual ScriptValue call(ScriptValue) = 0;
+
+    static void callCallback(const v8::FunctionCallbackInfo<v8::Value>& args)
     {
-    }
+        v8::Isolate* isolate = args.GetIsolate();
+        ASSERT(!args.Data().IsEmpty());
+        ScriptFunction* function = ScriptFunction::Cast(args.Data());
+        v8::Local<v8::Value> value = args.Length() > 0 ? args[0] : v8::Local<v8::Value>(v8::Undefined(isolate));
+
+        ScriptValue result = function->call(ScriptValue(value));
 
-    RefPtr<Node> m_layerRootNode;
-    String m_layerType;
-    RefPtr<ClientRect> m_rect;
+        v8SetReturnValue(args, result.v8Value());
+    }
 };
 
 } // namespace WebCore