bool Execute()

in libcef_dll/wrapper/cef_message_router.cc [598:682]
76 lines of code
17 McCabe index (conditional complexity)

    bool Execute(const CefString& name,
                 CefRefPtr<CefV8Value> object,
                 const CefV8ValueList& arguments,
                 CefRefPtr<CefV8Value>& retval,
                 CefString& exception) override {
      if (name == config_.js_query_function) {
        if (arguments.size() != 1 || !arguments[0]->IsObject()) {
          exception = "Invalid arguments; expecting a single object";
          return true;
        }

        CefRefPtr<CefV8Value> arg = arguments[0];

        CefRefPtr<CefV8Value> requestVal = arg->GetValue(kMemberRequest);
        if (!requestVal.get() || !requestVal->IsString()) {
          exception = "Invalid arguments; object member '" +
                      std::string(kMemberRequest) +
                      "' is required and must have type string";
          return true;
        }

        CefRefPtr<CefV8Value> successVal = nullptr;
        if (arg->HasValue(kMemberOnSuccess)) {
          successVal = arg->GetValue(kMemberOnSuccess);
          if (!successVal->IsFunction()) {
            exception = "Invalid arguments; object member '" +
                        std::string(kMemberOnSuccess) +
                        "' must have type function";
            return true;
          }
        }

        CefRefPtr<CefV8Value> failureVal = nullptr;
        if (arg->HasValue(kMemberOnFailure)) {
          failureVal = arg->GetValue(kMemberOnFailure);
          if (!failureVal->IsFunction()) {
            exception = "Invalid arguments; object member '" +
                        std::string(kMemberOnFailure) +
                        "' must have type function";
            return true;
          }
        }

        CefRefPtr<CefV8Value> persistentVal = nullptr;
        if (arg->HasValue(kMemberPersistent)) {
          persistentVal = arg->GetValue(kMemberPersistent);
          if (!persistentVal->IsBool()) {
            exception = "Invalid arguments; object member '" +
                        std::string(kMemberPersistent) +
                        "' must have type boolean";
            return true;
          }
        }

        CefRefPtr<CefV8Context> context = CefV8Context::GetCurrentContext();
        const int context_id = GetIDForContext(context);
        const bool persistent =
            (persistentVal.get() && persistentVal->GetBoolValue());

        const int request_id = router_->SendQuery(
            context->GetBrowser(), context->GetFrame(), context_id,
            requestVal->GetStringValue(), persistent, successVal, failureVal);
        retval = CefV8Value::CreateInt(request_id);
        return true;
      } else if (name == config_.js_cancel_function) {
        if (arguments.size() != 1 || !arguments[0]->IsInt()) {
          exception = "Invalid arguments; expecting a single integer";
          return true;
        }

        bool result = false;
        const int request_id = arguments[0]->GetIntValue();
        if (request_id != kReservedId) {
          CefRefPtr<CefV8Context> context = CefV8Context::GetCurrentContext();
          const int context_id = GetIDForContext(context);
          result =
              router_->SendCancel(context->GetBrowser(), context->GetFrame(),
                                  context_id, request_id);
        }
        retval = CefV8Value::CreateBool(result);
        return true;
      }

      return false;
    }