DevTools: introduce bound object on the agent side.

webkit/glue/devtools/bound_object.cc

Index: webkit/glue/devtools/bound_object.cc
===================================================================
--- webkit/glue/devtools/bound_object.cc	(revision 0)
+++ webkit/glue/devtools/bound_object.cc	(revision 0)
@@ -0,0 +1,61 @@
+// Copyright (c) 2009 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.
+
+#include "config.h"
+
+#include <string>
+
+#include "v8_proxy.h"
+#include "webkit/glue/devtools/bound_object.h"
+
+using namespace WebCore;
+
+BoundObject::BoundObject(
+    v8::Handle<v8::Context> context,
+    void* v8_this,
+    const char* object_name)
+    : context_(context),
+      object_name_(object_name) {
+  v8::HandleScope scope;
+  v8::Context::Scope context_scope(context);
+  v8_this_ = v8::Persistent<v8::External>::New(v8::External::New(v8_this));
+
+  v8::Local<v8::FunctionTemplate> local_template =
+      v8::FunctionTemplate::New(V8Proxy::CheckNewLegal);
+  host_template_ = v8::Persistent<v8::FunctionTemplate>::New(local_template);
+  host_template_->SetClassName(v8::String::New(object_name));
+}
+
+BoundObject::~BoundObject() {
+  bound_object_.Dispose();
+  host_template_.Dispose();
+  v8_this_.Dispose();
+}
+
+void BoundObject::AddProtoFunction(
+    const char* name,
+    v8::InvocationCallback callback) {
+  v8::HandleScope scope;
+  v8::Local<v8::Signature> signature = v8::Signature::New(host_template_);
+  v8::Local<v8::ObjectTemplate> proto = host_template_->PrototypeTemplate();
+  proto->Set(
+      v8::String::New(name),
+      v8::FunctionTemplate::New(
+          callback,
+          v8_this_,
+          signature),
+      static_cast<v8::PropertyAttribute>(v8::DontDelete));
+}
+
+void BoundObject::Build() {
+  v8::HandleScope scope;
+  v8::Context::Scope frame_scope(context_);
+
+  v8::Local<v8::Function> constructor = host_template_->GetFunction();
+  bound_object_ = v8::Persistent<v8::Object>::New(
+      SafeAllocation::NewInstance(constructor));
+  
+  v8::Handle<v8::Object> global = context_->Global();
+  global->Set(v8::String::New(object_name_), bound_object_);
+}