Implement ScriptPromise and ScriptFunction

Source/bindings/v8/ScriptFunction.h

 /*
  * Copyright (C) 2013 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
@@ skipping 10 matching lines @@
  * 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 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:
+    virtual ScriptValue call(ScriptValue) = 0;
 
-private:
-    LayerRect(PassRefPtr<Node> node, const String& layerName, PassRefPtr<ClientRect> rect)
-        : m_layerRootNode(node)
-        , m_layerType(layerName)
-        , m_rect(rect)
+    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));
+
+        v8SetReturnValue(args, result.v8Value());
     }
-
-    RefPtr<Node> m_layerRootNode;
-    String m_layerType;
-    RefPtr<ClientRect> m_rect;
 };
 
 } // namespace WebCore
 
 #endif