CefRefPtr<CefV8Value> thisObject,

const CefV8ValueList& v8Arguments,

CefRefPtr<CefV8Value>& returnValue,

CefString& exception) {

if (!CefV8Context::InContext()) {

// CefV8Context::GetCurrentContext may not be called when

// not in a V8 context.

LOG(ERROR) << "[Renderer process] V8FunctionHandler::Execute():"

" not inside a V8 context";

return false;

}

CefRefPtr<CefV8Context> context = CefV8Context::GetCurrentContext();

CefRefPtr<CefBrowser> browser = context.get()->GetBrowser();

CefRefPtr<CefFrame> frame = context.get()->GetFrame();

if (pythonCallbackId_) {

LOG(INFO) << "[Renderer process] V8FunctionHandler::Execute():"

" python callback";

CefRefPtr<CefListValue> functionArguments = V8ValueListToCefListValue(

v8Arguments);

CefRefPtr<CefProcessMessage> processMessage = \

CefProcessMessage::Create("ExecutePythonCallback");

CefRefPtr<CefListValue> messageArguments = \

processMessage->GetArgumentList();

messageArguments->SetInt(0, pythonCallbackId_);

messageArguments->SetList(1, functionArguments);

browser->SendProcessMessage(PID_BROWSER, processMessage);

returnValue = CefV8Value::CreateNull();

return true;

} else {

LOG(INFO) << "[Renderer process] V8FunctionHandler::Execute():"

" js binding";

if (!(cefPythonApp_.get() \

&& cefPythonApp_->BindedFunctionExists( \

browser, functionName))) {

exception = std::string("[CEF Python] " \

"V8FunctionHandler::Execute() FAILED: " \

"function does not exist: ").append(functionName) \

.append("()");

// Must return true for the exception to be thrown.

return true;

}

CefRefPtr<CefListValue> functionArguments = V8ValueListToCefListValue(

v8Arguments);

// TODO: losing int64 precision here.

int frameId = (int)frame->GetIdentifier();

CefRefPtr<CefProcessMessage> processMessage = \

CefProcessMessage::Create("V8FunctionHandler::Execute");

CefRefPtr<CefListValue> messageArguments = \

processMessage->GetArgumentList();

messageArguments->SetInt(0, frameId);

messageArguments->SetString(1, functionName);

messageArguments->SetList(2, functionArguments);

browser->SendProcessMessage(PID_BROWSER, processMessage);

returnValue = CefV8Value::CreateNull();

return true;

}