39 files changed, 209 insertions(+), 365 deletions(-)

M Target_Linux.cmake
M module-apps/apps-common/ApplicationCommon.cpp
M module-apps/apps-common/ApplicationCommon.hpp
M module-apps/apps-common/messages/AppMessage.hpp
M module-audio/Audio/AudioDevice.hpp
M module-audio/Audio/Operation/Operation.hpp
M module-audio/Audio/Profiles/Profile.hpp
M module-audio/CMakeLists.txt
M module-services/CMakeLists.txt
M module-services/service-appmgr/include/service-appmgr/StartupType.hpp
M module-services/service-appmgr/model/ApplicationManagerCommon.cpp
M module-services/service-eink/CMakeLists.txt
M module-services/service-eink/EinkDisplay.hpp
M module-services/service-eink/ServiceEink.cpp
M module-services/service-eink/ServiceEink.hpp
M module-services/service-gui/CMakeLists.txt
M module-services/service-gui/ServiceGUI.cpp
M module-services/service-gui/WorkerGUI.cpp
M module-services/service-gui/service-gui/ServiceGUI.hpp
M module-services/service-gui/service-gui/messages/DrawMessage.hpp
D module-services/service-gui/service-gui/messages/EinkInitialized.hpp
M module-sys/SystemManager/SystemManagerCommon.cpp
M module-sys/SystemManager/doc/SystemCloseSequence.md
M module-sys/SystemManager/doc/system_close_procedure_brownout.puml
M module-sys/SystemManager/doc/system_close_procedure_brownout.svg
M module-sys/SystemManager/doc/system_close_procedure_user.puml
M module-sys/SystemManager/doc/system_close_procedure_user.svg
M module-sys/SystemManager/include/SystemManager/SystemManagerCommon.hpp
M products/BellHybrid/BellHybridMain.cpp
M products/BellHybrid/apps/application-bell-main/ApplicationBellMain.cpp
M products/BellHybrid/apps/application-bell-main/include/application-bell-main/ApplicationBellMain.hpp
M products/BellHybrid/services/appmgr/ApplicationManager.cpp
M products/BellHybrid/services/appmgr/CMakeLists.txt
M products/BellHybrid/services/appmgr/include/appmgr/ApplicationManager.hpp
D products/BellHybrid/services/appmgr/include/appmgr/messages/BatteryShutdown.hpp
M products/BellHybrid/sys/SystemManager.cpp
M products/BellHybrid/sys/include/sys/SystemManager.hpp
M products/PurePhone/PurePhoneMain.cpp
M products/PurePhone/services/appmgr/ApplicationManager.cpp

@@ 5,7 5,6 @@ add_compile_options(-funsigned-char)
 set(TARGET_LIBRARIES
     rt
     pthread
-    portaudio
     CACHE INTERNAL "" )
 
 link_libraries(pthread rt)

@@ 127,8 127,6 @@ namespace app
 
         connect(typeid(AppRefreshMessage),
                 [this](sys::Message *msg) -> sys::MessagePointer { return handleAppRefresh(msg); });
-        connect(typeid(AppShutdownRefreshMessage),
-                [this](sys::Message *msg) -> sys::MessagePointer { return handleAppShutdownRefresh(msg); });
         connect(sevm::BatteryStatusChangeMessage(), [&](sys::Message *) { return handleBatteryStatusChange(); });
         connect(typeid(app::manager::DOMRequest),
                 [&](sys::Message *msg) -> sys::MessagePointer { return handleGetDOM(msg); });


@@ 713,33 711,6 @@ namespace app
         return sys::msgHandled();
     }
 
-    sys::MessagePointer ApplicationCommon::handleAppShutdownRefresh(sys::Message *msgl)
-    {
-        auto *msg = static_cast<AppShutdownRefreshMessage *>(msgl);
-        assert(msg);
-
-        if (not windowsFactory.isRegistered(msg->getWindowName())) {
-            LOG_ERROR("Cannot find window %s windowsFactory in application: %s",
-                      msg->getWindowName().c_str(),
-                      GetName().c_str());
-            return sys::msgHandled();
-        }
-
-        pushWindow(msg->getWindowName());
-        auto window = getWindow(msg->getWindowName());
-
-        if (not window) {
-            LOG_ERROR("Cannot find window %s in application %s", msg->getWindowName().c_str(), GetName().c_str());
-            return sys::msgHandled();
-        }
-
-        auto message = std::make_shared<service::gui::DrawMessage>(window->buildDrawList(), msg->getMode());
-        message->setCommandType(service::gui::DrawMessage::Type::SHUTDOWN);
-        bus.sendUnicast(std::move(message), service::name::gui);
-
-        return sys::msgHandled();
-    }
-
     sys::MessagePointer ApplicationCommon::handleGetDOM(sys::Message *msgl)
     {
         if (windowsStack().isEmpty()) {


@@ 936,8 907,25 @@ namespace app
                  GetName().c_str(),
                  windowName.length() ? windowName.c_str() : default_window.c_str());
 #endif
-        auto msg = std::make_shared<AppShutdownRefreshMessage>(windowName);
-        bus.sendUnicast(msg, this->GetName());
+        if (not windowsFactory.isRegistered(windowName)) {
+            LOG_ERROR("Cannot find window %s windowsFactory in application: %s", windowName.c_str(), GetName().c_str());
+            return;
+        }
+
+        pushWindow(windowName);
+        const auto window = getWindow(windowName);
+        if (not window) {
+            LOG_ERROR("Cannot find window %s in application %s", windowName.c_str(), GetName().c_str());
+            return;
+        }
+
+        const auto response = bus.sendUnicastSync(
+            std::make_shared<service::gui::DrawMessage>(window->buildDrawList(), gui::RefreshModes::GUI_REFRESH_DEEP),
+            service::name::gui,
+            100);
+        if (response.first != sys::ReturnCodes::Success) {
+            LOG_FATAL("Failed to send the shutdown window frame");
+        }
     }
 
     bool ApplicationCommon::userInterfaceDBNotification([[maybe_unused]] sys::Message *msg,

@@ 206,7 206,6 @@ namespace app
         bool handleUpdateTextRefresh(gui::SwitchData *data);
         sys::MessagePointer handleAppRebuild(sys::Message *msgl);
         sys::MessagePointer handleAppRefresh(sys::Message *msgl);
-        sys::MessagePointer handleAppShutdownRefresh(sys::Message *msgl);
         sys::MessagePointer handleGetDOM(sys::Message *msgl);
 
         std::list<std::unique_ptr<app::GuiTimer>> gui_timers;

@@ 114,13 114,6 @@ namespace app
         }
     };
 
-    class AppShutdownRefreshMessage : public AppRefreshMessage
-    {
-      public:
-        AppShutdownRefreshMessage(std::string window_name)
-            : AppRefreshMessage(gui::RefreshModes::GUI_REFRESH_DEEP, window_name){};
-    };
-
     class AppSwitchWindowMessage : public AppMessage
     {
       protected:

@@ 3,7 3,7 @@
 
 #pragma once
 
-#include <Audio/Endpoint.hpp>
+#include "Endpoint.hpp"
 
 #include <optional>
 #include <memory>

@@ 7,12 7,12 @@
 #include <functional>
 #include <optional>
 
-#include <Audio/AudioCommon.hpp>
-#include <Audio/AudioDeviceFactory.hpp>
-#include <Audio/AudioPlatform.hpp>
-#include <Audio/ServiceObserver.hpp>
-#include <Audio/encoder/Encoder.hpp>
-#include <Audio/Profiles/Profile.hpp>
+#include "Audio/AudioCommon.hpp"
+#include "Audio/AudioDeviceFactory.hpp"
+#include "Audio/AudioPlatform.hpp"
+#include "Audio/ServiceObserver.hpp"
+#include "Audio/encoder/Encoder.hpp"
+#include "Audio/Profiles/Profile.hpp"
 
 #include <service-bluetooth/ServiceBluetoothCommon.hpp>
 

@@ 3,8 3,8 @@
 
 #pragma once
 
-#include <Audio/AudioDevice.hpp>
-#include <Audio/codec.hpp>
+#include "Audio/AudioDevice.hpp"
+#include "Audio/codec.hpp"
 
 #include <memory>
 #include <functional>

@@ 53,7 53,7 @@ target_sources(
 target_compile_definitions(${PROJECT_NAME} PUBLIC ${PROJECT_CONFIG_DEFINITIONS})
 target_compile_definitions(${PROJECT_NAME} PUBLIC ${PROJECT_TARGET})
 target_include_directories(${PROJECT_NAME} PUBLIC ${PROJECT_INCLUDES})
-target_include_directories(${PROJECT_NAME} INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
+target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 
 # supress warning for flac decoder
 set_source_files_properties(


@@ 75,6 75,7 @@ target_link_libraries(${PROJECT_NAME}
                 utils-math
                 tagsfetcher
                 dr_libs::dr_libs
+                service-bluetooth
 )
 
 add_subdirectory(tags_fetcher)

@@ 3,7 3,7 @@
 
 module_is_test_entity()
 
-add_library(${PROJECT_NAME} STATIC ${SOURCES})
+add_library(${PROJECT_NAME} INTERFACE)
 
 option(ENABLE_SERVICE_TEST "Enable service test" OFF) 
 


@@ 30,8 30,8 @@ add_module_options( OPTION_PREFIX "SERVICE"
 
 set(ENABLED_SERVICES_DEFINES ${ENABLED_SERVICES_DEFINES} PARENT_SCOPE)
 
-target_link_libraries(${PROJECT_NAME} 
-    PUBLIC
+target_link_libraries(${PROJECT_NAME}
+    INTERFACE
         service-gui
         service-eink
         service-appmgr


@@ 45,25 45,24 @@ target_link_libraries(${PROJECT_NAME}
         module-audio
         service-antenna
         ${TARGET_LIBRARIES}
-    PRIVATE
         utils-time
 )
 
 # Board specific compilation definitions,options,include directories and features
-target_compile_definitions(${PROJECT_NAME} PUBLIC ${PROJECT_CONFIG_DEFINITIONS})
-target_compile_definitions(${PROJECT_NAME} PUBLIC ${PROJECT_TARGET})
-target_include_directories(${PROJECT_NAME} PUBLIC ${PROJECT_INCLUDES})
-target_include_directories(${PROJECT_NAME} PUBLIC ${LWIP_INCLUDE_DIRS})
+target_compile_definitions(${PROJECT_NAME} INTERFACE ${PROJECT_CONFIG_DEFINITIONS})
+target_compile_definitions(${PROJECT_NAME} INTERFACE ${PROJECT_TARGET})
+target_include_directories(${PROJECT_NAME} INTERFACE ${PROJECT_INCLUDES})
+target_include_directories(${PROJECT_NAME} INTERFACE ${LWIP_INCLUDE_DIRS})
 
 target_include_directories(${PROJECT_NAME}
-        PUBLIC
+        INTERFACE
         ${CMAKE_CURRENT_SOURCE_DIR}
         ${CMAKE_CURRENT_SOURCE_DIR}/../source
         ${CMAKE_SOURCE_DIR}/module-bluetooth
 )
 
 target_compile_options(${PROJECT_NAME}
-        PUBLIC
+        INTERFACE
         -Wall
         $<$<COMPILE_LANGUAGE:C>:-std=gnu11>
         $<$<COMPILE_LANGUAGE:C>:-Wno-discarded-qualifiers>

@@ 9,6 9,7 @@ namespace app::manager
     {
         Regular,
         LowBattery,
-        LowBatteryCharging
+        LowBatteryCharging,
+        CriticalBattery
     };
 } // namespace app::manager

@@ 35,6 35,23 @@ namespace app::manager
     namespace
     {
         constexpr auto ApplicationManagerStackDepth = 3072;
+
+        bool checkIfCloseableAction(const actions::Action action)
+        {
+            return action == app::manager::actions::DisplayLogoAtExit or
+                   action == app::manager::actions::SystemBrownout;
+        }
+
+        ActionRequest getCloseableAction(const app::ApplicationName &senderName, const sys::CloseReason closeReason)
+        {
+            switch (closeReason) {
+            case sys::CloseReason::SystemBrownout:
+            case sys::CloseReason::LowBattery:
+                return ActionRequest{senderName, app::manager::actions::SystemBrownout, nullptr};
+            default:
+                return ActionRequest{senderName, app::manager::actions::DisplayLogoAtExit, nullptr};
+            }
+        }
     } // namespace
 
     ApplicationManagerBase::ApplicationManagerBase(std::vector<std::unique_ptr<app::ApplicationLauncher>> &&launchers)


@@ 148,26 165,14 @@ namespace app::manager
 
     sys::ReturnCodes ApplicationManagerCommon::DeinitHandler()
     {
-        settings->deinit();
         closeApplications();
+        settings->deinit();
         return sys::ReturnCodes::Success;
     }
 
     auto ApplicationManagerCommon::ProcessCloseReason(sys::CloseReason closeReason) -> void
     {
-        ActionRequest act = ActionRequest{this->GetName(), app::manager::actions::DisplayLogoAtExit, nullptr};
-        switch (closeReason) {
-        case sys::CloseReason::SystemBrownout:
-        case sys::CloseReason::LowBattery:
-            act = ActionRequest{this->GetName(), app::manager::actions::SystemBrownout, nullptr};
-            break;
-        case sys::CloseReason::RegularPowerDown:
-        case sys::CloseReason::Reboot:
-        case sys::CloseReason::RebootToUpdate:
-        case sys::CloseReason::RebootToUsbMscMode:
-        case sys::CloseReason::FactoryReset:
-            break;
-        }
+        auto act = getCloseableAction(this->GetName(), closeReason);
         handleActionRequest(&act);
     }
 


@@ 260,7 265,7 @@ namespace app::manager
             return sys::msgHandled();
         });
         connect(typeid(ActionHandledResponse), [this](sys::Message *response) {
-            if (actionsRegistry.getPendingAction()->actionId == app::manager::actions::DisplayLogoAtExit) {
+            if (checkIfCloseableAction(actionsRegistry.getPendingAction()->actionId)) {
                 isReady = false;
                 sendCloseReadyMessage(this);
             }


@@ 846,5 851,5 @@ namespace app::manager
     auto ApplicationManagerCommon::handleDeveloperModeRequest(sys::Message *request) -> sys::MessagePointer
     {
         return sys::msgNotHandled();
-    };
+    }
 } // namespace app::manager

@@ 14,9 14,11 @@ add_library(${PROJECT_NAME} STATIC ${SOURCES})
 add_board_subdirectory(board)
 
 target_link_libraries( ${PROJECT_NAME}
-    module-utils
-    service-gui
-    Microsoft.GSL::GSL
+        module-utils
+        module-bsp
+        Microsoft.GSL::GSL
+        messagetype
+        module-sys
 )
 
 target_include_directories(${PROJECT_NAME}

@@ 3,9 3,8 @@
 
 #pragma once
 
-#include <gui/Common.hpp>
-
 #include <EinkIncludes.hpp>
+#include <gui/Common.hpp>
 #include "Common.hpp"
 
 #include <cstdint>

@@ 6,7 6,6 @@
 #include "internal/StaticData.hpp"
 #include "messages/EinkModeMessage.hpp"
 #include "messages/PrepareDisplayEarlyRequest.hpp"
-#include <service-gui/messages/EinkInitialized.hpp>
 #include <time/ScopedTime.hpp>
 #include <Timers/TimerFactory.hpp>
 


@@ 42,7 41,7 @@ namespace service::eink
     ServiceEink::ServiceEink(ExitAction exitAction, const std::string &name, std::string parent)
         : sys::Service(name, std::move(parent), ServceEinkStackDepth),
           exitAction{exitAction}, display{{BOARD_EINK_DISPLAY_RES_X, BOARD_EINK_DISPLAY_RES_Y}},
-          currentState{State::Running}, waitingForLastRender{false}, settings{std::make_unique<settings::Settings>()}
+          currentState{State::Running}, settings{std::make_unique<settings::Settings>()}
     {
         displayPowerOffTimer = sys::TimerFactory::createSingleShotTimer(
             this, "einkDisplayPowerOff", displayPowerOffTimeout, [this](sys::Timer &) { display.powerOff(); });


@@ 52,9 51,6 @@ namespace service::eink
         connect(typeid(ImageMessage),
                 [this](sys::Message *request) -> sys::MessagePointer { return handleImageMessage(request); });
 
-        connect(typeid(ShutdownImageMessage),
-                [this](sys::Message *request) -> sys::MessagePointer { return handleShutdownImageMessage(request); });
-
         connect(typeid(PrepareDisplayEarlyRequest),
                 [this](sys::Message *request) -> sys::MessagePointer { return handlePrepareEarlyRequest(request); });
 


@@ 86,8 82,6 @@ namespace service::eink
 
         display.powerOn();
 
-        auto msg = std::make_shared<service::gui::EinkInitialized>(display.getSize());
-        bus.sendUnicast(msg, service::name::gui);
         return sys::ReturnCodes::Success;
     }
 


@@ 176,15 170,6 @@ namespace service::eink
         return std::make_shared<service::eink::ImageDisplayedNotification>(message->getContextId());
     }
 
-    sys::MessagePointer ServiceEink::handleShutdownImageMessage(sys::Message *request)
-    {
-        if (waitingForLastRender) {
-            isReady = false;
-            sendCloseReadyMessage(this);
-        };
-        return handleImageMessage(request);
-    }
-
     void ServiceEink::showImage(std::uint8_t *frameBuffer, ::gui::RefreshModes refreshMode)
     {
         displayPowerOffTimer.stop();


@@ 258,9 243,4 @@ namespace service::eink
         return currentState == state;
     }
 
-    void ServiceEink::ProcessCloseReasonHandler(sys::CloseReason closeReason)
-    {
-        waitingForLastRender = true;
-    }
-
 } // namespace service::eink

@@ 13,7 13,6 @@
 
 #include <service-db/DBServiceName.hpp>
 #include <service-db/Settings.hpp>
-#include <service-gui/Common.hpp>
 
 #include <chrono>
 #include <cstdint>


@@ 68,17 67,13 @@ namespace service::eink
 
         sys::MessagePointer handleEinkModeChangedMessage(sys::Message *message);
         sys::MessagePointer handleImageMessage(sys::Message *message);
-        sys::MessagePointer handleShutdownImageMessage(sys::Message *message);
         sys::MessagePointer handlePrepareEarlyRequest(sys::Message *message);
 
-        auto ProcessCloseReasonHandler(sys::CloseReason closeReason) -> void override;
-
         void initStaticData();
 
         ExitAction exitAction;
         EinkDisplay display;
         State currentState;
-        bool waitingForLastRender;
         sys::TimerHandle displayPowerOffTimer;
         std::shared_ptr<EinkSentinel> eInkSentinel;
         std::unique_ptr<settings::Settings> settings;


@@ 93,7 88,7 @@ namespace sys
         {
             ServiceManifest manifest;
             manifest.name         = service::name::eink;
-            manifest.dependencies = {service::name::db, service::name::gui};
+            manifest.dependencies = {service::name::db};
             return manifest;
         }
     };

@@ 14,7 14,6 @@ target_sources(service-gui
         service-gui/ServiceGUI.hpp
         service-gui/messages/ChangeColorScheme.hpp
         service-gui/messages/DrawMessage.hpp
-        service-gui/messages/EinkInitialized.hpp
         service-gui/messages/GUIMessage.hpp
         service-gui/messages/RenderingFinished.hpp
     PRIVATE

@@ 5,8 5,6 @@
 #include "WorkerGUI.hpp"
 
 #include "messages/DrawMessage.hpp"
-
-#include "messages/EinkInitialized.hpp"
 #include "messages/ChangeColorScheme.hpp"
 
 #include <DrawCommand.hpp>


@@ 43,10 41,9 @@ namespace service::gui
         }
     } // namespace
 
-    ServiceGUI::ServiceGUI(const std::string &name, std::string parent)
-        : sys::Service(name, parent, ServiceGuiStackDepth), commandsQueue{std::make_unique<DrawCommandsQueue>(
-                                                                CommandsQueueCapacity)},
-          currentState{State::NotInitialised}, lastRenderScheduled{false}, waitingForLastRender{false}
+    ServiceGUI::ServiceGUI(::gui::Size displaySize, const std::string &name, std::string parent)
+        : sys::Service(name, parent, ServiceGuiStackDepth), displaySize{displaySize},
+          commandsQueue{std::make_unique<DrawCommandsQueue>(CommandsQueueCapacity)}
     {
         initAssetManagers();
         registerMessageHandlers();


@@ 63,9 60,6 @@ namespace service::gui
 
     void ServiceGUI::registerMessageHandlers()
     {
-        connect(typeid(EinkInitialized),
-                [this](sys::Message *request) -> sys::MessagePointer { return handleEinkInitialized(request); });
-
         connect(typeid(DrawMessage),
                 [this](sys::Message *request) -> sys::MessagePointer { return handleDrawMessage(request); });
 


@@ 87,6 81,8 @@ namespace service::gui
 
     sys::ReturnCodes ServiceGUI::InitHandler()
     {
+        contextPool = std::make_unique<ContextPool>(displaySize, ContextsCount);
+
         std::list<sys::WorkerQueueInfo> queueInfo{
             {WorkerGUI::SignallingQueueName, WorkerGUI::SignalSize, WorkerGUI::SignallingQueueCapacity}};
         worker = std::make_unique<WorkerGUI>(this);


@@ 103,7 99,13 @@ namespace service::gui
 
     void ServiceGUI::ProcessCloseReason(sys::CloseReason closeReason)
     {
-        waitingForLastRender = true;
+        if (not isDisplaying and not isRendering) {
+            sendCloseReadyMessage(this);
+            return;
+        }
+        else {
+            isClosing = true;
+        }
     }
 
     void ServiceGUI::ProcessCloseReasonHandler(sys::CloseReason closeReason)


@@ 114,37 116,12 @@ namespace service::gui
     sys::ReturnCodes ServiceGUI::SwitchPowerModeHandler(const sys::ServicePowerMode mode)
     {
         LOG_INFO("PowerModeHandler: %s", c_str(mode));
-        switch (mode) {
-        case sys::ServicePowerMode::Active:
-            setState(contextPool != nullptr ? State::Idle : State::NotInitialised);
-            break;
-        case sys::ServicePowerMode::SuspendToRAM:
-            [[fallthrough]];
-        case sys::ServicePowerMode::SuspendToNVM:
-            setState(State::Suspended);
-            break;
-        }
         return sys::ReturnCodes::Success;
     }
 
     sys::MessagePointer ServiceGUI::handleDrawMessage(sys::Message *message)
     {
-        if (isInState(State::NotInitialised)) {
-            LOG_WARN("Service not yet initialised - ignoring draw commands");
-            return std::make_shared<sys::ResponseMessage>(sys::ReturnCodes::Unresolved);
-        }
-        if (isInState(State::Suspended) || lastRenderScheduled) {
-            LOG_WARN("Ignoring draw commands");
-            return std::make_shared<sys::ResponseMessage>(sys::ReturnCodes::Unresolved);
-        }
-
         if (const auto drawMsg = static_cast<DrawMessage *>(message); !drawMsg->commands.empty()) {
-            if (drawMsg->isType(DrawMessage::Type::SUSPEND)) {
-                setState(State::Suspended);
-            }
-            else if (drawMsg->isType(DrawMessage::Type::SHUTDOWN)) {
-                lastRenderScheduled = true;
-            }
             if (!isAnyFrameBeingRenderedOrDisplayed()) {
                 prepareDisplayEarly(drawMsg->mode);
             }


@@ 169,6 146,7 @@ namespace service::gui
     void ServiceGUI::notifyRenderer(std::list<std::unique_ptr<::gui::DrawCommand>> &&commands,
                                     ::gui::RefreshModes refreshMode)
     {
+        isRendering = true;
         enqueueDrawCommands(DrawCommandsQueue::QueueItem{std::move(commands), refreshMode});
         worker->notify(WorkerGUI::Signal::Render);
     }


@@ 195,10 173,12 @@ namespace service::gui
 
     sys::MessagePointer ServiceGUI::handleGUIRenderingFinished(sys::Message *message)
     {
+        isRendering          = false;
         auto finishedMsg     = static_cast<service::gui::RenderingFinished *>(message);
         const auto contextId = finishedMsg->getContextId();
         auto refreshMode     = finishedMsg->getRefreshMode();
-        if (isInState(State::Idle)) {
+
+        if (not isDisplaying) {
             if (cache.isRenderCached()) {
                 refreshMode = getMaxRefreshMode(cache.getCachedRender()->refreshMode, refreshMode);
                 cache.invalidate();


@@ 215,14 195,9 @@ namespace service::gui
 
     void ServiceGUI::sendOnDisplay(::gui::Context *context, int contextId, ::gui::RefreshModes refreshMode)
     {
-        setState(State::Busy);
+        isDisplaying = true;
         std::shared_ptr<service::eink::ImageMessage> imageMsg;
-        if (waitingForLastRender) {
-            imageMsg = std::make_shared<service::eink::ShutdownImageMessage>(contextId, context, refreshMode);
-        }
-        else {
-            imageMsg = std::make_shared<service::eink::ImageMessage>(contextId, context, refreshMode);
-        }
+        imageMsg = std::make_shared<service::eink::ImageMessage>(contextId, context, refreshMode);
         bus.sendUnicast(imageMsg, service::name::eink);
         scheduleContextRelease(contextId);
     }


@@ 240,32 215,24 @@ namespace service::gui
         contextReleaseTimer.start();
     }
 
-    sys::MessagePointer ServiceGUI::handleEinkInitialized(sys::Message *message)
-    {
-        const auto msg = static_cast<service::gui::EinkInitialized *>(message);
-        contextPool    = std::make_unique<ContextPool>(msg->getDisplaySize(), ContextsCount);
-        setState(State::Idle);
-        return sys::MessageNone{};
-    }
-
     sys::MessagePointer ServiceGUI::handleImageDisplayedNotification(sys::Message *message)
     {
+        isDisplaying         = false;
         const auto msg       = static_cast<eink::ImageDisplayedNotification *>(message);
         const auto contextId = msg->getContextId();
         contextPool->returnContext(contextId);
         contextReleaseTimer.stop();
-        setState(State::Idle);
 
-        // Even if the next render is already cached, if any context in the pool is currently being processed, then
-        // we better wait for it.
-        if (isNextFrameReady() and not isAnyFrameBeingRenderedOrDisplayed()) {
-            trySendNextFrame();
-        }
-        else if (lastRenderScheduled && waitingForLastRender) {
-            isReady = false;
+        if (isClosing) {
             sendCloseReadyMessage(this);
         }
-
+        else {
+            // Even if the next render is already cached, if any context in the pool is currently being processed, then
+            // we better wait for it.
+            if (isNextFrameReady() and not isAnyFrameBeingRenderedOrDisplayed()) {
+                trySendNextFrame();
+            }
+        }
         return sys::MessageNone{};
     }
 


@@ 287,14 254,4 @@ namespace service::gui
         }
         cache.invalidate();
     }
-
-    void ServiceGUI::setState(State state) noexcept
-    {
-        currentState = state;
-    }
-
-    bool ServiceGUI::isInState(State state) const noexcept
-    {
-        return currentState == state;
-    }
 } // namespace service::gui

@@ 5,7 5,6 @@
 
 #include <DrawCommand.hpp>
 #include <log/log.hpp>
-#include <Renderer.hpp>
 #include <Service/Worker.hpp>
 #include <service-gui/ServiceGUI.hpp>
 

@@ 13,8 13,7 @@
 #include <Service/Message.hpp>
 #include <Service/Service.hpp>
 #include <Timers/TimerHandle.hpp>
-
-#include <service-db/DBServiceName.hpp>
+#include <service-eink/Common.hpp>
 
 #include <cstdint>
 #include <memory>


@@ 35,7 34,9 @@ namespace service::gui
         friend WorkerGUI;
 
       public:
-        explicit ServiceGUI(const std::string &name = service::name::gui, std::string parent = {});
+        explicit ServiceGUI(::gui::Size displaySize,
+                            const std::string &name = service::name::gui,
+                            std::string parent      = {});
         ~ServiceGUI() noexcept override;
 
         sys::ReturnCodes InitHandler() override;


@@ 46,13 47,9 @@ namespace service::gui
         sys::ReturnCodes SwitchPowerModeHandler(const sys::ServicePowerMode mode) override;
 
       private:
-        enum class State
-        {
-            NotInitialised,
-            Idle,
-            Busy,
-            Suspended
-        };
+        bool isRendering{};
+        bool isDisplaying{};
+        bool isClosing{};
 
         static void initAssetManagers();
         void registerMessageHandlers();


@@ 67,24 64,18 @@ namespace service::gui
         bool isAnyFrameBeingRenderedOrDisplayed() const noexcept;
         void trySendNextFrame();
 
-        void setState(State state) noexcept;
-        bool isInState(State state) const noexcept;
-
         sys::MessagePointer handleDrawMessage(sys::Message *message);
         sys::MessagePointer handleGUIRenderingFinished(sys::Message *message);
-        sys::MessagePointer handleEinkInitialized(sys::Message *message);
         sys::MessagePointer handleImageDisplayedNotification(sys::Message *message);
         sys::MessagePointer handleChangeColorScheme(sys::Message *message);
 
+        ::gui::Size displaySize;
         std::unique_ptr<ContextPool> contextPool;
         std::unique_ptr<WorkerGUI> worker;
         std::unique_ptr<DrawCommandsQueue> commandsQueue;
         std::unique_ptr<::gui::ColorScheme> colorSchemeUpdate;
         RenderCache cache;
         sys::TimerHandle contextReleaseTimer;
-        State currentState;
-        bool lastRenderScheduled;
-        bool waitingForLastRender;
     };
 } // namespace service::gui
 


@@ 96,7 87,7 @@ namespace sys
         {
             ServiceManifest manifest;
             manifest.name         = service::name::gui;
-            manifest.dependencies = {service::name::db};
+            manifest.dependencies = {service::name::eink};
             return manifest;
         }
     };

@@ 24,8 24,7 @@ namespace service::gui
         enum class Type
         {
             NORMAL,
-            SUSPEND,
-            SHUTDOWN
+            SUSPEND
         } type = Type::NORMAL;
 
       public:

@@ 1,26 0,0 @@
-// Copyright (c) 2017-2021, Mudita Sp. z.o.o. All rights reserved.
-// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
-
-#pragma once
-
-#include "GUIMessage.hpp"
-
-#include <gui/Common.hpp>
-
-namespace service::gui
-{
-    class EinkInitialized : public GUIMessage
-    {
-      public:
-        explicit EinkInitialized(::gui::Size displaySize) : einkDisplaySize{displaySize}
-        {}
-
-        [[nodiscard]] auto getDisplaySize() const noexcept -> ::gui::Size
-        {
-            return einkDisplaySize;
-        }
-
-      private:
-        ::gui::Size einkDisplaySize;
-    };
-} // namespace service::gui

@@ 40,8 40,27 @@ namespace sys
 {
     namespace
     {
-        constexpr std::chrono::milliseconds preShutdownRoutineTimeout{1500};
+        constexpr std::chrono::milliseconds serviceCloseResponseTimeout{1500};
         constexpr std::chrono::milliseconds lowBatteryShutdownDelayTime{5000};
+
+        app::manager::StartupType toStartupType(Store::Battery::LevelState state)
+        {
+            using bState = Store::Battery::LevelState;
+            using sState = app::manager::StartupType;
+
+            switch (state) {
+            case bState::Normal:
+                return sState::Regular;
+            case bState::Shutdown:
+                return sState::CriticalBattery;
+            case bState::CriticalNotCharging:
+                return sState::LowBattery;
+            case bState::CriticalCharging:
+                return sState::LowBatteryCharging;
+            }
+            return sState::Regular;
+        }
+
     } // namespace
 
     namespace state


@@ 444,20 463,41 @@ namespace sys
         return "none";
     }
 
-    void SystemManagerCommon::preCloseRoutine(CloseReason closeReason)
+    void SystemManagerCommon::InitiateSystemCloseSequence(CloseReason closeReason)
     {
         for (const auto &service : servicesList) {
-            auto msg = std::make_shared<ServiceCloseReasonMessage>(closeReason);
-            bus.sendUnicast(std::move(msg), service->GetName());
-            readyForCloseRegister.push_back(service->GetName());
+            servicesToClose.push_back(service->GetName());
         }
-
-        // stored to be used later in CloseServices
         this->closeReason = closeReason;
 
-        servicesPreShutdownRoutineTimeout = sys::TimerFactory::createPeriodicTimer(
-            this, "servicesPreShutdownRoutine", preShutdownRoutineTimeout, [this](sys::Timer &) { CloseServices(); });
-        servicesPreShutdownRoutineTimeout.start();
+        serviceCloseTimer = sys::TimerFactory::createSingleShotTimer(
+            this, "serviceCloseTimer", serviceCloseResponseTimeout, [this](sys::Timer &) { CloseServices(); });
+        serviceCloseTimer.start();
+
+        /// Start the sequence by sending close request to the first service on the list
+        bus.sendUnicast(std::make_shared<ServiceCloseReasonMessage>(closeReason), servicesToClose.front());
+    }
+
+    void SystemManagerCommon::ServiceReadyToCloseHandler(Message *msg)
+    {
+        if (!servicesToClose.empty() && serviceCloseTimer.isActive()) {
+            serviceCloseTimer.stop();
+
+            const auto message = static_cast<ReadyToCloseMessage *>(msg);
+            LOG_INFO("ready to close %s", message->sender.c_str());
+            servicesToClose.erase(std::remove(servicesToClose.begin(), servicesToClose.end(), message->sender),
+                                  servicesToClose.end());
+
+            // All services responded
+            if (servicesToClose.empty()) {
+                LOG_INFO("All services ready to close.");
+                CloseServices();
+            }
+            else {
+                bus.sendUnicast(std::make_shared<ServiceCloseReasonMessage>(closeReason), servicesToClose.front());
+                serviceCloseTimer.start();
+            }
+        }
     }
 
     void SystemManagerCommon::postStartRoutine()


@@ 489,7 529,9 @@ namespace sys
     void SystemManagerCommon::batteryShutdownLevelAction()
     {
         LOG_INFO("Battery level too low - shutting down the system...");
-        CloseSystemHandler(CloseReason::LowBattery);
+        if (!lowBatteryShutdownDelay.isActive()) {
+            lowBatteryShutdownDelay.start();
+        }
     }
 
     void SystemManagerCommon::batteryNormalLevelAction()


@@ 497,24 539,6 @@ namespace sys
         LOG_INFO("Battery level normal.");
     }
 
-    void SystemManagerCommon::readyToCloseHandler(Message *msg)
-    {
-        if (!readyForCloseRegister.empty() && servicesPreShutdownRoutineTimeout.isActive()) {
-            auto message = static_cast<ReadyToCloseMessage *>(msg);
-            LOG_INFO("ready to close %s", message->sender.c_str());
-            readyForCloseRegister.erase(
-                std::remove(readyForCloseRegister.begin(), readyForCloseRegister.end(), message->sender),
-                readyForCloseRegister.end());
-
-            // All services responded
-            if (readyForCloseRegister.empty()) {
-                LOG_INFO("All services ready to close.");
-                servicesPreShutdownRoutineTimeout.stop();
-                CloseServices();
-            }
-        }
-    }
-
     void SystemManagerCommon::kill(std::shared_ptr<Service> const &toKill)
     {
         auto ret = toKill->DeinitHandler();


@@ 586,7 610,7 @@ namespace sys
         });
 
         connect(ReadyToCloseMessage(), [&](Message *msg) {
-            readyToCloseHandler(msg);
+            ServiceReadyToCloseHandler(msg);
             return MessageNone{};
         });
 


@@ 643,27 667,9 @@ namespace sys
         });
 
         connect(typeid(app::manager::CheckIfStartAllowedMessage), [this](sys::Message *) -> sys::MessagePointer {
-            switch (Store::Battery::get().levelState) {
-            case Store::Battery::LevelState::Normal:
-                bus.sendUnicast(std::make_unique<app::manager::StartAllowedMessage>(app::manager::StartupType::Regular),
-                                service::name::appmgr);
-                break;
-            case Store::Battery::LevelState::Shutdown:
-                if (!lowBatteryShutdownDelay.isActive()) {
-                    lowBatteryShutdownDelay.start();
-                }
-                [[fallthrough]];
-            case Store::Battery::LevelState::CriticalNotCharging:
-                bus.sendUnicast(
-                    std::make_unique<app::manager::StartAllowedMessage>(app::manager::StartupType::LowBattery),
-                    service::name::appmgr);
-                break;
-            case Store::Battery::LevelState::CriticalCharging:
-                bus.sendUnicast(
-                    std::make_unique<app::manager::StartAllowedMessage>(app::manager::StartupType::LowBatteryCharging),
-                    service::name::appmgr);
-                break;
-            }
+            bus.sendUnicast(
+                std::make_unique<app::manager::StartAllowedMessage>(toStartupType(Store::Battery::get().levelState)),
+                service::name::appmgr);
             return sys::MessageNone{};
         });
 


@@ 697,16 703,16 @@ namespace sys
         std::reverse(servicesList.begin(), servicesList.end());
         CriticalSection::Exit();
 
-        preCloseRoutine(closeReason);
+        InitiateSystemCloseSequence(closeReason);
     }
 
     void SystemManagerCommon::CloseServices()
     {
-        for (const auto &element : readyForCloseRegister) {
+        for (const auto &element : servicesToClose) {
             LOG_INFO("Service: %s did not reported before timeout", element.c_str());
         }
         // All delayed messages will be ignored
-        readyForCloseRegister.clear();
+        servicesToClose.clear();
 
         switch (closeReason) {
         case CloseReason::RegularPowerDown:

@@ 2,9 2,8 @@
 
 Regular power down via menu
 
-![](./system_close_procedure_user.svg)
-
+![](system_close_procedure_user.svg)
 
 Close at Brownout event
 
-![](./system_close_procedure_brownout.svg)>
\ No newline at end of file
+![](system_close_procedure_brownout.svg)

@@ 8,7 8,7 @@ participant "Service GUI" as gui
 participant "service EINK" as eink
 
 -> sysmgr : battery brownout
-sysmgr -> srv : preCloseRoutine
+sysmgr -> srv : InitiateSystemCloseSequence
 
 srv -> appmgr : processCloseReason
 appmgr -> appmgr : switchWindowAtClose(Dead Battery Window)

@@ 1,4 1,4 @@
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 @startuml
 skinparam BackgroundColor F0F0F0
 


@@ 9,7 9,7 @@ participant "Service GUI" as gui
 participant "service EINK" as eink
 
 -> sysmgr : battery brownout
-sysmgr -> srv : preCloseRoutine
+sysmgr -> srv : InitiateSystemCloseSequence
 
 srv -> appmgr : processCloseReason
 appmgr -> appmgr : switchWindowAtClose(Dead Battery Window)


@@ 28,12 28,10 @@ end
 
 @enduml
 
-PlantUML version 1.2020.02(Sun Mar 01 05:22:07 EST 2020)
+PlantUML version 1.2021.7(Sun May 23 14:40:07 CEST 2021)
 (GPL source distribution)
 Java Runtime: OpenJDK Runtime Environment
 JVM: OpenJDK 64-Bit Server VM
-Java Version: 11.0.12+7-post-Debian-2
-Operating System: Linux
 Default Encoding: UTF-8
 Language: en
 Country: US

@@ 13,7 13,7 @@ participant "service EINK" as eink
 User -> poff : confirm close
 poff -> app : GUI off switch
 app -> sysmgr : UserPowerDownRequest
-sysmgr -> srv : preCloseRoutine
+sysmgr -> srv : InitiateSystemCloseSequence
 
 srv -> appmgr : processCloseReason
 appmgr -> appmgr : switchWindowAtClose(logo)

@@ 1,4 1,4 @@
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y="421.3191">alt</text><text fill="#000000" font-family="sans-serif" font-size="11" font-weight="bold" lengthAdjust="spacing" textLength="53" x="427" y="420.181">[timeout]</text><line style="stroke:#A80036;stroke-width:1.0;" x1="424.5" x2="466.5" y1="449.8341" y2="449.8341"/><line style="stroke:#A80036;stroke-width:1.0;" x1="466.5" x2="466.5" y1="449.8341" y2="462.8341"/><line style="stroke:#A80036;stroke-width:1.0;" x1="425.5" x2="466.5" y1="462.8341" y2="462.8341"/><polygon fill="#A80036" points="435.5,458.8341,425.5,462.8341,435.5,466.8341,431.5,462.8341" style="stroke:#A80036;stroke-width:1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="78" x="431.5" y="444.0251">closeServices</text><polygon fill="#A80036" points="612.5,497.5401,622.5,501.5401,612.5,505.5401,616.5,501.5401" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="424.5" x2="618.5" y1="501.5401" y2="501.5401"/><text 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font-weight="bold" lengthAdjust="spacing" textLength="53" x="427" y="562.005">[timeout]</text><line style="stroke:#A80036;stroke-width:1.0;" x1="424.5" x2="466.5" y1="591.6582" y2="591.6582"/><line style="stroke:#A80036;stroke-width:1.0;" x1="466.5" x2="466.5" y1="591.6582" y2="604.6582"/><line style="stroke:#A80036;stroke-width:1.0;" x1="425.5" x2="466.5" y1="604.6582" y2="604.6582"/><polygon fill="#A80036" points="435.5,600.6582,425.5,604.6582,435.5,608.6582,431.5,604.6582" style="stroke:#A80036;stroke-width:1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="60" x="431.5" y="585.8492">kill service</text><!--MD5=[a331d730c9d76b9349085f79d38295fd]
 @startuml
 skinparam BackgroundColor F0F0F0
 


@@ 14,7 14,7 @@ participant "service EINK" as eink
 User -> poff : confirm close
 poff -> app : GUI off switch
 app -> sysmgr : UserPowerDownRequest
-sysmgr -> srv : preCloseRoutine
+sysmgr -> srv : InitiateSystemCloseSequence
 
 srv -> appmgr : processCloseReason
 appmgr -> appmgr : switchWindowAtClose(logo)


@@ 33,12 33,10 @@ end
 
 @enduml
 
-PlantUML version 1.2020.02(Sun Mar 01 05:22:07 EST 2020)
+PlantUML version 1.2021.7(Sun May 23 14:40:07 CEST 2021)
 (GPL source distribution)
 Java Runtime: OpenJDK Runtime Environment
 JVM: OpenJDK 64-Bit Server VM
-Java Version: 11.0.12+7-post-Debian-2
-Operating System: Linux
 Default Encoding: UTF-8
 Language: en
 Country: US

@@ 173,11 173,10 @@ namespace sys
 
         void CloseServices();
 
-        void preCloseRoutine(CloseReason closeReason);
-
+        void InitiateSystemCloseSequence(CloseReason closeReason);
         void postStartRoutine();
 
-        void readyToCloseHandler(Message *msg);
+        void ServiceReadyToCloseHandler(Message *msg);
 
         void RestoreSystemHandler();
 


@@ 198,13 197,13 @@ namespace sys
         UpdateReason updateReason{UpdateReason::Update};
         std::vector<std::unique_ptr<BaseServiceCreator>> systemServiceCreators;
         sys::TimerHandle freqTimer;
-        sys::TimerHandle servicesPreShutdownRoutineTimeout;
+        sys::TimerHandle serviceCloseTimer;
         sys::TimerHandle lowBatteryShutdownDelay;
         sys::TimerHandle powerManagerEfficiencyTimer;
         InitFunction userInit;
         InitFunction systemInit;
         DeinitFunction systemDeinit;
-        std::vector<std::string> readyForCloseRegister;
+        std::vector<std::string> servicesToClose;
 
         std::shared_ptr<sys::CpuSentinel> cpuSentinel;
 

@@ 86,7 86,8 @@ int main()
     systemServices.emplace_back(sys::CreatorFor<ServiceDesktop>());
     systemServices.emplace_back(sys::CreatorFor<stm::ServiceTime>(std::make_shared<alarms::AlarmOperationsFactory>()));
     systemServices.emplace_back(sys::CreatorFor<service::eink::ServiceEink>(service::eink::ExitAction::None));
-    systemServices.emplace_back(sys::CreatorFor<service::gui::ServiceGUI>());
+    systemServices.emplace_back(
+        sys::CreatorFor<service::gui::ServiceGUI>(gui::Size{BOARD_EINK_DISPLAY_RES_X, BOARD_EINK_DISPLAY_RES_Y}));
 
     auto sysmgr = std::make_shared<sys::SystemManager>(std::move(systemServices));
     sysmgr->StartSystem(

@@ 50,6 50,12 @@ namespace app
             return actionHandled();
         });
 
+        addActionReceiver(manager::actions::ChangeHomescreenLayout, [this](auto &&data) {
+            auto msgLayout = dynamic_cast<gui::ChangeHomescreenLayoutParams *>(data.get());
+            setHomeScreenLayout(msgLayout->getNewHomescreenLayoutName());
+            return actionHandled();
+        });
+
         addActionReceiver(app::manager::actions::DisplayLogoAtExit, [this](auto &&data) {
             requestShutdownWindow(gui::BellWelcomeWindow::defaultName);
             return actionHandled();


@@ 59,22 65,6 @@ namespace app
             requestShutdownWindow(gui::window::name::bell_battery_shutdown);
             return actionHandled();
         });
-
-        addActionReceiver(manager::actions::ChangeHomescreenLayout, [this](auto &&data) {
-            auto msgLayout = dynamic_cast<gui::ChangeHomescreenLayoutParams *>(data.get());
-            setHomeScreenLayout(msgLayout->getNewHomescreenLayoutName());
-            return actionHandled();
-        });
-
-        addActionReceiver(app::manager::actions::DisplayLowBatteryScreen, [this](auto &&data) {
-            /**
-             * Due to the way of handling shutdown sequence by GUI renderer and applications it is required to leave
-             * this handler defined but not implemented even if it's not used at all.
-             * Without it, the renderer won't render the last frame properly.
-             * This issue will be addressed in future PRs.
-             */
-            return actionHandled();
-        });
     }
 
     sys::ReturnCodes ApplicationBellMain::InitHandler()


@@ 149,11 139,6 @@ namespace app
         return handleAsyncResponse(resp);
     }
 
-    auto ApplicationBellMain::isHomeScreenFocused() -> bool
-    {
-        return GetName() == app::applicationBellName && getCurrentWindow()->getName() == gui::name::window::main_window;
-    }
-
     // Empty: do not start idleTimer on application run
     void ApplicationBellMain::onStart()
     {}

@@ 42,7 42,6 @@ namespace app
         }
 
       private:
-        auto isHomeScreenFocused() -> bool;
         void onStart() override;
         sys::MessagePointer handleSwitchWindow(sys::Message *msgl) override;
         void setHomeScreenLayout(std::string layoutName);


@@ 57,7 56,6 @@ namespace app
             return {{manager::actions::Launch,
                      manager::actions::ShowAlarm,
                      manager::actions::DisplayLogoAtExit,
-                     manager::actions::DisplayLowBatteryScreen,
                      manager::actions::SystemBrownout,
                      manager::actions::ChangeHomescreenLayout}};
         }

@@ 3,13 3,12 @@
 
 #include <appmgr/ApplicationManager.hpp>
 #include <appmgr/messages/AlarmMessage.hpp>
-#include <appmgr/messages/BatteryShutdown.hpp>
 #include <appmgr/messages/IdleTimerMessage.hpp>
 #include <appmgr/messages/ChangeHomescreenLayoutMessage.hpp>
 #include <application-bell-main/ApplicationBellMain.hpp>
 #include <application-bell-onboarding/BellOnBoardingNames.hpp>
 #include <service-appmgr/Constants.hpp>
-#include <service-db/agents/settings/SystemSettings.hpp>
+#include <common/windows/BellWelcomeWindow.hpp>
 
 namespace app::manager
 {


@@ 46,6 45,21 @@ namespace app::manager
         }
     }
 
+    void ApplicationManager::handleStart(StartAllowedMessage *msg)
+    {
+        switch (msg->getStartupType()) {
+        case StartupType::CriticalBattery:
+            handleSwitchApplication(
+                std::make_unique<SwitchRequest>(
+                    service::name::appmgr, resolveHomeApplication(), gui::window::name::bell_battery_shutdown, nullptr)
+                    .get());
+
+            break;
+        default:
+            ApplicationManagerCommon::handleStart(msg);
+        }
+    }
+
     auto ApplicationManager::handleDisplayLanguageChange(app::manager::DisplayLanguageChangeRequest *msg) -> bool
     {
         return ApplicationManagerCommon::handleDisplayLanguageChange(msg);


@@ 70,7 84,6 @@ namespace app::manager
         });
         connect(typeid(AlarmActivated), convertibleToActionHandler);
         connect(typeid(AlarmDeactivated), convertibleToActionHandler);
-        connect(typeid(BatteryShutdown), convertibleToActionHandler);
         connect(typeid(BedtimeNotification), convertibleToActionHandler);
         connect(typeid(ChangeHomescreenLayoutMessage), convertibleToActionHandler);
     }

@@ 9,7 9,6 @@ target_sources(appmgr
         include/appmgr/messages/AlarmMessage.hpp
         include/appmgr/ApplicationManager.hpp
         include/appmgr/IdleHandler.hpp
-        include/appmgr/messages/BatteryShutdown.hpp
         include/appmgr/messages/ChangeHomescreenLayoutMessage.hpp
         include/appmgr/messages/ChangeHomescreenLayoutParams.hpp
         include/appmgr/messages/PowerOffPopupRequestParams.hpp

@@ 16,6 16,7 @@ namespace app::manager
                            const ApplicationName &_rootApplicationName);
 
       protected:
+        void handleStart(StartAllowedMessage *msg) override;
         auto handleAction(ActionEntry &action) -> ActionProcessStatus override;
         auto handleDisplayLanguageChange(DisplayLanguageChangeRequest *msg) -> bool override;
 

@@ 1,23 0,0 @@
-// Copyright (c) 2017-2021, Mudita Sp. z.o.o. All rights reserved.
-// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
-
-#pragma once
-
-#include <Service/Message.hpp>
-#include <apps-common/popups/data/PopupRequestParams.hpp>
-#include <service-appmgr/Actions.hpp>
-#include <service-appmgr/messages/ActionRequest.hpp>
-
-class BatteryShutdown : public sys::DataMessage, public app::manager::actions::ConvertibleToAction
-{
-  public:
-    BatteryShutdown() : sys::DataMessage{MessageType::MessageTypeUninitialized}
-    {}
-
-    [[nodiscard]] auto toAction() const -> std::unique_ptr<app::manager::ActionRequest> override
-    {
-        return std::make_unique<app::manager::ActionRequest>(sender,
-                                                             app::manager::actions::DisplayLowBatteryScreen,
-                                                             std::make_unique<app::manager::actions::ActionParams>());
-    }
-};

@@ 7,10 7,7 @@
 #include <system/messages/SystemManagerMessage.hpp>
 
 #include <appmgr/messages/AlarmMessage.hpp>
-#include <appmgr/messages/BatteryShutdown.hpp>
-#include <service-appmgr/messages/SwitchRequest.hpp>
 #include <service-appmgr/Constants.hpp>
-#include <service-appmgr/Controller.hpp>
 
 namespace sys
 {


@@ 44,13 41,6 @@ namespace sys
         return MessageNone{};
     }
 
-    void SystemManager::batteryShutdownLevelAction()
-    {
-        auto msg = std::make_shared<BatteryShutdown>();
-        bus.sendUnicast(msg, service::name::appmgr);
-        SystemManagerCommon::batteryShutdownLevelAction();
-    }
-
     void SystemManager::handleShutdown()
     {
         set(State::ShutdownReady);

@@ 19,8 19,6 @@ namespace sys
 
         auto handleAlarmActivationStatusChangeRequest(AlarmActivationStatusChangeRequest *request) -> MessagePointer;
 
-        void batteryShutdownLevelAction() override;
-
         void handleShutdown() override;
     };
 } // namespace sys

@@ 195,7 195,8 @@ int main()
     systemServices.emplace_back(sys::CreatorFor<service::eink::ServiceEink>());
 #endif
 #ifdef ENABLE_SERVICE_GUI
-    systemServices.emplace_back(sys::CreatorFor<service::gui::ServiceGUI>());
+    systemServices.emplace_back(
+        sys::CreatorFor<service::gui::ServiceGUI>(gui::Size{BOARD_EINK_DISPLAY_RES_X, BOARD_EINK_DISPLAY_RES_Y}));
 #endif
 #if ENABLE_SERVICE_TEST
     systemServices.emplace_back(sys::CreatorFor<service::test::ServiceTest>());

@@ 591,6 591,7 @@ namespace app::manager
             ApplicationManagerCommon::handleStart(msg);
             break;
         case StartupType::LowBattery:
+        case StartupType::CriticalBattery:
             handleSwitchApplication(std::make_unique<SwitchRequest>(
                                         service::name::appmgr, app::name_desktop, window::name::dead_battery, nullptr)
                                         .get());