Some refactoring of global JavaScript objects

src/WebRequestJsObject.cpp

 #include <map>
-#include <AdblockPlus.h>
+#include <AdblockPlus/JsEngine.h>
+#include <AdblockPlus/JsValue.h>
+#include <AdblockPlus/WebRequest.h>
 #include "WebRequestJsObject.h"
 #include "Thread.h"
 
 namespace
 {
-  std::string fromV8String(v8::Handle<v8::Value> value)
-  {
-    v8::String::Utf8Value stringValue(value);
-    if (stringValue.length())
-      return std::string(*stringValue, stringValue.length());
-    else
-      return std::string();
-  }
-
-  v8::Local<v8::String> toV8String(const std::string& str)
-  {
-    return v8::String::New(str.c_str(), str.length());
-  }
-
   class WebRequestThread : public AdblockPlus::Thread
   {
   public:
-    WebRequestThread(const v8::Arguments& arguments)
-        : isolate(v8::Isolate::GetCurrent()),
-          context(v8::Persistent<v8::Context>::New(isolate, v8::Context::GetCurrent())),
-          thisPtr(v8::Persistent<v8::Object>::New(isolate, arguments.Holder())),
-          url(fromV8String(arguments[0]))
+    WebRequestThread(AdblockPlus::JsEngine& jsEngine, AdblockPlus::JsValueList& arguments)
+        : jsEngine(jsEngine), url(arguments[0]->AsString())
     {
-      const v8::Locker locker(isolate);
-      const v8::HandleScope handleScope;
-
       if (!url.length())
         throw std::runtime_error("Invalid string passed as first argument to GET");
 
       {
-        const v8::Local<v8::Value> value = arguments[1];
-        if (!value->IsObject())
+        AdblockPlus::JsValuePtr headersObj = arguments[1];
+        if (!headersObj->IsObject())
           throw std::runtime_error("Second argument to GET must be an object");
-        const v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(value);
-        const v8::Local<v8::Array> properties = object->GetOwnPropertyNames();
-        for (unsigned i = 0; i < properties->Length(); i++)
+
+        std::vector<std::string> properties = headersObj->GetOwnPropertyNames();
+        for (std::vector<std::string>::iterator it = properties.begin();
+            it != properties.end(); ++it)
         {
-          const v8::Local<v8::Value> property = properties->Get(i);
-          std::string header = fromV8String(property);
-          std::string headerValue = fromV8String(object->Get(property));
+          std::string header = *it;
+          std::string headerValue = headersObj->GetProperty(header)->AsString();
           if (header.length() && headerValue.length())
             headers.push_back(std::pair<std::string, std::string>(header, headerValue));
         }
       }
 
-      const v8::Local<v8::Value> callbackValue = arguments[2];
-      if (!callbackValue->IsFunction())
+      callback = arguments[2];
+      if (!callback->IsFunction())
         throw std::runtime_error("Third argument to GET must be a function");
-      callback = v8::Persistent<v8::Function>::New(isolate,
-          v8::Local<v8::Function>::Cast(callbackValue));
-
-      const v8::Local<const v8::External> external =
-          v8::Local<const v8::External>::Cast(arguments.Data());
-      webRequest = static_cast<AdblockPlus::WebRequest* const>(external->Value());
-    }
-
-    ~WebRequestThread()
-    {
-      context.Dispose(isolate);
-      thisPtr.Dispose(isolate);
-      callback.Dispose(isolate);
     }
 
     void Run()
     {
-      AdblockPlus::ServerResponse result = webRequest->GET(url, headers);
+      AdblockPlus::ServerResponse result = jsEngine.GetWebRequest().GET(url, headers);
 
-      const v8::Locker locker(isolate);
-      const v8::HandleScope handleScope;
-      const v8::Context::Scope contextScope(context);
-      v8::Local<v8::Object> resultObject = v8::Object::New();
-      resultObject->Set(v8::String::New("status"), v8::Number::New(result.status));
-      resultObject->Set(v8::String::New("responseStatus"), v8::Integer::New(result.responseStatus));
-      resultObject->Set(v8::String::New("responseText"), toV8String(result.responseText));
+      AdblockPlus::JsEngine::Context context(jsEngine);
 
-      v8::Local<v8::Object> headersObject = v8::Object::New();
+      AdblockPlus::JsValuePtr resultObject = jsEngine.NewObject();
+      resultObject->SetProperty("status", result.status);
+      resultObject->SetProperty("responseStatus", result.responseStatus);
+      resultObject->SetProperty("responseText", result.responseText);
+
+      AdblockPlus::JsValuePtr headersObject = jsEngine.NewObject();
       for (AdblockPlus::HeaderList::iterator it = result.responseHeaders.begin();
         it != result.responseHeaders.end(); ++it)
       {
-        headersObject->Set(toV8String(it->first), toV8String(it->second));
+        headersObject->SetProperty(it->first, it->second);
       }
-      resultObject->Set(v8::String::New("responseHeaders"), headersObject);
+      resultObject->SetProperty("responseHeaders", headersObject);
 
-      v8::Local<v8::Value> resultValue = resultObject;
-      callback->Call(thisPtr, 1, &resultValue);
+      AdblockPlus::JsValueList params;
+      params.push_back(resultObject);
+      callback->Call(params);
       delete this;
     }
 
   private:
-    v8::Isolate* const isolate;
-    v8::Persistent<v8::Context> context;
-    v8::Persistent<v8::Object> thisPtr;
+    AdblockPlus::JsEngine& jsEngine;
     std::string url;
     AdblockPlus::HeaderList headers;
-    v8::Persistent<v8::Function> callback;
-    AdblockPlus::WebRequest* webRequest;
+    AdblockPlus::JsValuePtr callback;
   };
 
   v8::Handle<v8::Value> GETCallback(const v8::Arguments& arguments)
   {
     WebRequestThread* thread;
     try
     {
-      if (arguments.Length() != 3u)
+      AdblockPlus::JsEngine& jsEngine = AdblockPlus::JsEngine::FromArguments(arguments);
+      AdblockPlus::JsValueList converted = jsEngine.ConvertArguments(arguments);
+      if (converted.size() != 3u)
         throw std::runtime_error("GET requires exactly 3 arguments");
-      thread = new WebRequestThread(arguments);
+      thread = new WebRequestThread(jsEngine, converted);
     }
     catch (const std::exception& e)
     {
       return v8::ThrowException(v8::String::New(e.what()));
     }
     thread->Start();
     return v8::Undefined();
   }
 }
 
 v8::Handle<v8::ObjectTemplate> AdblockPlus::WebRequestJsObject::Create(
-  AdblockPlus::WebRequest& webRequest)
+  AdblockPlus::JsEngine& jsEngine)
 {
   v8::HandleScope handleScope;
   const v8::Handle<v8::ObjectTemplate> request = v8::ObjectTemplate::New();
   const v8::Handle<v8::FunctionTemplate> getFunction =
     v8::FunctionTemplate::New(::GETCallback,
-                              v8::External::New(&webRequest));
+                              v8::External::New(&jsEngine));
   request->Set(v8::String::New("GET"), getFunction);
   return handleScope.Close(request);
 }