implement the android permissions singleton responsible for requesting android permissions and checking those
This commit is contained in:
Mamadou Babaei
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/**
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* @file
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*
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* @author Mamadou Babaei <mamadou@senseglove.com>
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*
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* @section LICENSE
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*
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* (The MIT License)
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*
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* Copyright (c) 2020 - 2024 SenseGlove
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* @section DESCRIPTION
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*
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*
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*/
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#include "SGAndroid/SGAndroidPermissions.h"
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#include "AndroidPermissionCallbackProxy.h"
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#include "AndroidPermissionFunctionLibrary.h"
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#include "SGLog/SGLog.h"
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struct USGAndroidPermissions::FImpl
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{
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/************************
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* Member variables
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************************/
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TFunction<void(const TArray<FString>&, const TArray<bool>&)> PermissionsGrantedCallback;
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/************************
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* Owner object
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************************/
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USGAndroidPermissions* Owner;
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/************************
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* Constructor / Destructor
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************************/
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explicit FImpl(USGAndroidPermissions* InOwner);
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~FImpl();
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/************************
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* Default copy constructor & copy assignment operator
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************************/
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FImpl(const FImpl& Rhs) = default;
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FImpl& operator=(const FImpl& Rhs) = default;
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};
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USGAndroidPermissions* USGAndroidPermissions::GetInstance()
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{
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if (!ensureAlwaysMsgf(GEngine, TEXT("The engine has not been initialized!")))
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{
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return nullptr;
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}
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USGAndroidPermissions* Instance{GEngine->GetEngineSubsystem<USGAndroidPermissions>()};
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return Instance;
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}
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USGAndroidPermissions::USGAndroidPermissions()
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: Pimpl(TUniquePtr<FImpl, FImplDeleter>(new FImpl{this}, PimplDeleter))
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{
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}
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void USGAndroidPermissions::Request(
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const TFunction<void(const TArray<FString>&, const TArray<bool>&)>& PermissionsGrantedCallback)
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{
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TArray<FString> Permissions{
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"android.permission.ACCESS_BACKGROUND_LOCATION",
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"android.permission.ACCESS_FINE_LOCATION",
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"android.permission.BLUETOOTH",
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"android.permission.BLUETOOTH_ADMIN",
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"android.permission.BLUETOOTH_ADVERTISE",
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"android.permission.BLUETOOTH_CONNECT",
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"android.permission.BLUETOOTH_SCAN",
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};
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bool bHasAllRequiredPermissions = false;
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for (const FString& Permission: Permissions)
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{
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const bool bHasPermission = UAndroidPermissionFunctionLibrary::CheckPermission(Permission);
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bHasAllRequiredPermissions = bHasPermission;
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if (!bHasAllRequiredPermissions)
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{
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break;
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}
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}
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if (!bHasAllRequiredPermissions)
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{
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Pimpl->PermissionsGrantedCallback = PermissionsGrantedCallback;
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UAndroidPermissionFunctionLibrary::AcquirePermissions(
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MoveTemp(Permissions))->OnPermissionsGrantedDelegate.AddUObject(
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this, &USGAndroidPermissions::OnPermissionsGranted);
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}
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else
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{
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TArray<bool> GrantedResults;
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for (int32 i = 0; i < Permissions.Num(); ++i)
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{
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GrantedResults.Add(true);
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}
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PermissionsGrantedCallback(MoveTemp(Permissions), MoveTemp(GrantedResults));
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}
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}
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void USGAndroidPermissions::OnPermissionsGranted(const TArray<FString>& Permissions, const TArray<bool>& GrantResults)
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{
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if (!ensureAlwaysMsgf(Permissions.Num() == GrantResults.Num(),
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TEXT("Mismatched number of Permissions and GrantedResults!")))
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{
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return;
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}
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for (int32 i = 0; i < Permissions.Num(); i++)
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{
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if (GrantResults[i])
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{
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SGLOG("Permission Granted", Permissions[i]);
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}
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else
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{
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SGLOG("Permission Denied", Permissions[i]);
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}
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}
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Pimpl->PermissionsGrantedCallback(Permissions, GrantResults);
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}
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bool USGAndroidPermissions::ShouldCreateSubsystem(UObject* Outer) const
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{
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return true;
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}
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void USGAndroidPermissions::Initialize(FSubsystemCollectionBase& Collection)
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{
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SGLOG("Initializing the SenseGlove Android permissions singleton with the engine lifetime...");
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Super::Initialize(Collection);
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SGLOG("The SenseGlove Android permissions singleton has been successfully initialized with the engine lifetime!");
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}
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void USGAndroidPermissions::Deinitialize()
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{
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SGLOG("De-initializing the SenseGlove Android permissions singleton due to the engine lifetime expiration...");
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Super::Deinitialize();
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(void) Pimpl.Release();
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SGLOG("The SenseGlove Android permissions singleton has been successfully de-initialized!");
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}
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USGAndroidPermissions::FImpl::FImpl(USGAndroidPermissions* InOwner)
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: Owner(InOwner)
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{
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}
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USGAndroidPermissions::FImpl::~FImpl() = default;
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void USGAndroidPermissions::FImplDeleter::operator()(const FImpl* P) const
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{
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delete P;
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}
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@@ -0,0 +1,81 @@
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/**
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* @file
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*
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* @author Mamadou Babaei <mamadou@senseglove.com>
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*
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* @section LICENSE
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*
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* (The MIT License)
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*
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* Copyright (c) 2020 - 2024 SenseGlove
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* @section DESCRIPTION
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*
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*
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*/
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#pragma once
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#include "Containers/Array.h"
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#include "Containers/UnrealString.h"
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#include "Templates/Function.h"
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#include "Templates/SharedPointer.h"
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#include "UObject/ObjectMacros.h"
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#include "SGAndroidPermissions.generated.h"
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UCLASS()
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class SENSEGLOVEANDROID_API USGAndroidPermissions : public UEngineSubsystem
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{
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GENERATED_BODY()
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public:
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static USGAndroidPermissions* GetInstance();
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private:
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struct FImpl;
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struct FImplDeleter
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{
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void operator()(const FImpl* P) const;
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};
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TUniquePtr<FImpl, FImplDeleter> Pimpl;
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FImplDeleter PimplDeleter;
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private:
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USGAndroidPermissions();
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public:
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void Request(
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const TFunction<void(const TArray<FString>&, const TArray<bool>&)>& PermissionsGrantedCallback);
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private:
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void OnPermissionsGranted(
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const TArray<FString>& Permissions, const TArray<bool>& GrantResults);
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public:
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virtual bool ShouldCreateSubsystem(UObject* Outer) const override;
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virtual void Initialize(FSubsystemCollectionBase& Collection) override;
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virtual void Deinitialize() override;
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};
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