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/*
* Copyright (c) 2015, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SRC_COMPONENTS_APPLICATION_MANAGER_INCLUDE_APPLICATION_MANAGER_APPLICATION_STATE_H_
#define SRC_COMPONENTS_APPLICATION_MANAGER_INCLUDE_APPLICATION_MANAGER_APPLICATION_STATE_H_
#include <vector>
#include "application_manager/hmi_state.h"
#include "utils/lock.h"
#include "utils/macro.h"
namespace application_manager {
typedef std::vector<HmiStatePtr> HmiStates;
/*
* Class represents application state, i.e. current HMI level, audio streaming
* state and context
* Current implementation:
* - has regular state, which is default or base state
* - temporary states can be applied on top of regular state
* - on temporary state end it is being removed from states list
* - current state is the consolidated state of all the states, since different
* temporary state can affect one or more parameters (HMI state, audio, context)
* - can have postponed state (comes from resumption process), which is
* not applied on top, but is being added before base and can replace base later
* on
*/
class ApplicationState {
public:
/**
* @brief ApplicationState constructor
*/
ApplicationState();
/**
* @brief Init state
* @param state Initial state
*/
void InitState(HmiStatePtr state);
/**
* @brief Adds state to states storage
* @param state State of application
*/
void AddState(HmiStatePtr state);
/**
* @brief Removes state from states storage
* @param state State of application
*/
void RemoveState(HmiState::StateID state);
/**
* @brief Gets state by state id
* @param state_id State id
* @return Pointer to application state
*/
HmiStatePtr GetState(HmiState::StateID state_id) const;
private:
/**
* @brief AddHMIState the function that will change application's
* hmi state.
*
* @param app_id id of the application whose hmi level should be changed.
*
* @param state new hmi state for certain application.
*/
void AddHMIState(HmiStatePtr state);
/**
* @brief RemoveHMIState the function that will turn back hmi_level after end
* of some event
*
* @param app_id id of the application whose hmi level should be changed.
*
* @param state_id that should be removed
*/
void RemoveHMIState(HmiState::StateID state_id);
/**
* @brief Removes postponed state
*/
void RemovePostponedState();
/**
* @brief Sets regular state of application
* @param state State of application
*/
void SetRegularState(HmiStatePtr state);
/**
* @brief Sets postponed state of application.
* This state could be set as regular later on
*
* @param state state to setup
*/
void SetPostponedState(HmiStatePtr state);
/**
* @brief HmiState of application within active events PhoneCall, TTS< etc ...
* @return Active HmiState of application
*/
HmiStatePtr CurrentHmiState() const;
/**
* @brief RegularHmiState of application without active events VR, TTS etc ...
* @return HmiState of application
*/
HmiStatePtr RegularHmiState() const;
/**
* @brief PostponedHmiState returns postponed hmi state of application
* if it's present
*
* @return Postponed hmi state of application
*/
HmiStatePtr PostponedHmiState() const;
/**
* @brief Active states of application
*/
HmiStates hmi_states_;
mutable sync_primitives::Lock hmi_states_lock_;
DISALLOW_COPY_AND_ASSIGN(ApplicationState);
};
} // namespace application_manager
#endif // SRC_COMPONENTS_APPLICATION_MANAGER_INCLUDE_APPLICATION_MANAGER_APPLICATION_STATE_H_
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