HandlerContainer.h

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// Copyright 2015 Sensics, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef INCLUDED_HandlerContainer_h_GUID_EAD5E6BA_FEDA_428B_0F12_B30FBE4AD6DB
#define INCLUDED_HandlerContainer_h_GUID_EAD5E6BA_FEDA_428B_0F12_B30FBE4AD6DB

// Internal Includes
#include <osvr/Client/RemoteHandler.h>
#include <osvr/Util/UniqueContainer.h>

// Library/third-party includes
// - none

// Standard includes
#include <vector>

namespace osvr {
namespace client {
    class HandlerContainer {
      public:
        void update() {
            // temp copy to avoid invalidated iterators
            auto handlersTemp = m_handlers;
            for (auto const &handler : handlersTemp) {
                handler->update();
            }
        }

        void add(RemoteHandlerPtr const &handler) {
            if (!handler) {
                // Early out for null pointers.
                return;
            }
            m_handlers.insert(handler);
        }

        void remove(RemoteHandlerPtr const &handler) {
            if (!handler) {
                // Early out for null pointers.
                return;
            }
            m_handlers.remove(handler);
        }

      private:
        typedef std::vector<RemoteHandlerPtr> BaseContainer;
        typedef osvr::util::unique_container_policies::PushBack UniquePolicy;
        typedef util::UniqueContainer<BaseContainer, UniquePolicy,
                                      util::container_policies::iterators>
            InternalHandlerContainer;
        InternalHandlerContainer m_handlers;
    };
} // namespace client
} // namespace osvr

#endif // INCLUDED_HandlerContainer_h_GUID_EAD5E6BA_FEDA_428B_0F12_B30FBE4AD6DB