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41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Misc/Guid.h"
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#include "Helpers/MessageEndpoint.h"
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struct FWidgetSnapshotRequest;
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struct FWidgetSnapshotResponse;
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/**
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* Implements the service for handling remote widget snapshots.
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*/
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class FWidgetSnapshotService
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{
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public:
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DECLARE_DELEGATE_OneParam(FOnWidgetSnapshotResponse, const TArray<uint8>& /*InSnapshotData*/);
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FWidgetSnapshotService();
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/** Request a snapshot from the given instance. The given delegate will be called when the response comes in */
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FGuid RequestSnapshot(const FGuid& InRemoteInstanceId, const FOnWidgetSnapshotResponse& OnResponse);
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/** Abort a request using the GUID previously obtained via a call to RequestSnapshot */
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void AbortSnapshotRequest(const FGuid& InSnapshotRequestId);
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private:
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/** Handles FWidgetSnapshotRequest messages */
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void HandleWidgetSnapshotRequestMessage(const FWidgetSnapshotRequest& Message, const IMessageContextRef& Context);
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/** Handles FWidgetSnapshotResponse messages */
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void HandleWidgetSnapshotResponseMessage(const FWidgetSnapshotResponse& Message, const IMessageContextRef& Context);
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/** Holds the message endpoint */
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FMessageEndpointPtr MessageEndpoint;
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/** Handlers awaiting their resultant snapshot data */
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TMap<FGuid, FOnWidgetSnapshotResponse> PendingSnapshotResponseHandlers;
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};
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