[Android] Implement renderer side of Gin Java Bridge

content/renderer/java/gin_java_bridge_object.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_RENDERER_JAVA_GIN_JAVA_BRIDGE_OBJECT_H_
+#define CONTENT_RENDERER_JAVA_GIN_JAVA_BRIDGE_OBJECT_H_
+
+#include <set>
+
+#include "base/memory/weak_ptr.h"
+#include "content/public/renderer/v8_value_converter.h"
+#include "content/renderer/java/gin_java_bridge_dispatcher.h"
+#include "gin/handle.h"
+#include "gin/interceptor.h"
+#include "gin/object_template_builder.h"
+#include "gin/wrappable.h"
+
+namespace blink {
+class WebFrame;
+}
+
+namespace content {
+
+class GinJavaBridgeObject : public gin::Wrappable<GinJavaBridgeObject>,
+                            public gin::NamedPropertyInterceptor,
+                            public content::V8ValueConverter::Strategy {
+ public:
+  // gin::Wrappable.
+  virtual gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
+      v8::Isolate* isolate) OVERRIDE;
+
+  // gin::NamedPropertyInterceptor
+  virtual v8::Local<v8::Value> GetNamedProperty(
+      v8::Isolate* isolate, const std::string& property) OVERRIDE;
+  virtual std::vector<std::string> EnumerateNamedProperties(
+      v8::Isolate* isolate) OVERRIDE;
+
+  // content::V8ValueConverter::Strategy
+  virtual bool FromV8Object(v8::Handle<v8::Object> value,
+                            base::Value** out,
+                            v8::Isolate* isolate,
+                            const FromV8ValueCallback& callback) const OVERRIDE;
+  virtual bool FromV8ArrayBuffer(v8::Handle<v8::Object> value,
+                                 base::Value** out) const OVERRIDE;
+  virtual bool FromV8Number(v8::Handle<v8::Number> value,
+                            base::Value** out) const OVERRIDE;
+  virtual bool FromV8Undefined(base::Value** out) const OVERRIDE;
+
+  static GinJavaBridgeObject* Inject(
+      blink::WebFrame* frame,
+      const base::WeakPtr<GinJavaBridgeDispatcher>& dispatcher,
+      const std::string& object_name,
+      GinJavaBridgeDispatcher::ObjectID object_id);
+  static GinJavaBridgeObject* InjectAnonymous(
+      const base::WeakPtr<GinJavaBridgeDispatcher>& dispatcher,
+      GinJavaBridgeDispatcher::ObjectID object_id);
+  static bool InjectExisting(blink::WebFrame* frame,
+                             GinJavaBridgeObject* object,
+                             const std::string& object_name);
+
+  static gin::WrapperInfo kWrapperInfo;
+
+ private:
+  GinJavaBridgeObject(v8::Isolate* isolate,
+                      const base::WeakPtr<GinJavaBridgeDispatcher>& dispatcher,
+                      GinJavaBridgeDispatcher::ObjectID object_id);
+  virtual ~GinJavaBridgeObject();
+
+  v8::Handle<v8::Value> InvokeMethod(const std::string& name,
+                                     gin::Arguments* args);
+
+  base::WeakPtr<GinJavaBridgeDispatcher> dispatcher_;
+  GinJavaBridgeDispatcher::ObjectID object_id_;
+  scoped_ptr<V8ValueConverter> converter_;
+
+  DISALLOW_COPY_AND_ASSIGN(GinJavaBridgeObject);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_JAVA_GIN_JAVA_BRIDGE_OBJECT_H_