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+/*
+ * Copyright (c) 2018 TOYOTA MOTOR CORPORATION
+ *
+ * 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 TMCAGLWM_PM_WRAPPER_HPP
+#define TMCAGLWM_PM_WRAPPER_HPP
+
+#include <functional>
+#include <vector>
+#include <string>
+#include <map>
+#include "policy_manager.hpp"
+#include "request.hpp"
+
+struct json_object;
+struct sd_event;
+struct sd_event_source;
+struct StmState;
+
+namespace wm
+{
+
+class PMWrapper
+{
+  public:
+    explicit PMWrapper();
+    ~PMWrapper() = default;
+
+    using StateTransitionHandler = std::function<void(std::vector<WMAction>)>;
+    using ErrorHandler = std::function<void(void)>;
+
+    int initialize();
+    void registerCallback(StateTransitionHandler on_state_transitioned,
+                          ErrorHandler on_error);
+    int setInputEventData(Task task, std::string role, std::string area);
+    int executeStateTransition();
+    void undoState();
+
+    // Do not use these functions
+    void updateStates(json_object *json_out);
+    void processError();
+
+  private:
+    // Disable copy and move
+    PMWrapper(PMWrapper const &) = delete;
+    PMWrapper &operator=(PMWrapper const &) = delete;
+    PMWrapper(PMWrapper &&) = delete;
+    PMWrapper &operator=(PMWrapper &&) = delete;
+
+    typedef std::map<std::string, std::string> RoleState;
+
+    PolicyManager pm;
+    StateTransitionHandler on_state_transitioned;
+    ErrorHandler on_error;
+    std::map<std::string, RoleState> prvlayer2rolestate;
+    std::map<std::string, RoleState> crrlayer2rolestate;
+
+    void createLayoutChangeAction(json_object *json_out, std::vector<WMAction> &actions);
+};
+
+} // namespace wm
+
+#endif // TMCAGLWM_PM_WRAPPER_HPP