初始提交: UE5.3项目基础框架

Plugins/CesiumForUnreal/Source/CesiumEditor/Private/SelectCesiumIonToken.h

@@ -0,0 +1,115 @@
+// Copyright 2020-2024 CesiumGS, Inc. and Contributors
+
+#pragma once
+
+#include "CesiumAsync/AsyncSystem.h"
+#include "CesiumIonClient/Token.h"
+#include "Widgets/Input/SComboBox.h"
+#include "Widgets/SWindow.h"
+#include <optional>
+#include <string>
+#include <variant>
+
+class UCesiumIonServer;
+class CesiumIonSession;
+
+class SelectCesiumIonToken : public SWindow {
+  SLATE_BEGIN_ARGS(SelectCesiumIonToken) {}
+  SLATE_ARGUMENT(UCesiumIonServer*, Server)
+  SLATE_END_ARGS()
+
+public:
+  /**
+   * Opens a panel to allow the user to select a new token.
+   *
+   * @return A future that resolves when the panel is closed. It resolves to the
+   * selected token if there was one, or to std::nullopt if the panel was closed
+   * without selecting a token.
+   */
+  static CesiumAsync::SharedFuture<std::optional<CesiumIonClient::Token>>
+  SelectNewToken(UCesiumIonServer* pServer);
+
+  /**
+   * Opens a panel to allow the user to select a new token if a project default
+   * token is not already set. If the project default token _is_ set, the future
+   * immediately resolves to the previously-set token.
+   *
+   * @return A future that resolves when the panel is closed or when it does not
+   * need to be opened in the first place. It resolves to the selected token if
+   * there was one, or to std::nullopt if the panel was closed without selecting
+   * a token.
+   */
+  static CesiumAsync::Future<std::optional<CesiumIonClient::Token>>
+  SelectTokenIfNecessary(UCesiumIonServer* pServer);
+
+  /**
+   * Authorizes the project default token to access a list of asset IDs. If the
+   * project default token is not set, a panel is opened to allow the token to
+   * be selected. Then, if possible, the token is modified to allow access to
+   * the list of asset IDs.
+   *
+   * @param assetIDs The asset IDs to be accessed.
+   * @return A future that resolves when the panel is closed or when it does not
+   * need to be opened in the first place. It resolves to the selected token if
+   * there was one, or to std::nullopt if the panel was closed without selecting
+   * a token.
+   */
+  static CesiumAsync::Future<std::optional<CesiumIonClient::Token>>
+  SelectAndAuthorizeToken(
+      UCesiumIonServer* pServer,
+      const std::vector<int64_t>& assetIDs);
+
+  void Construct(const FArguments& InArgs);
+
+private:
+  enum class TokenSource { Create, UseExisting, Specify };
+
+  struct CreateNewToken {
+    FString name;
+  };
+
+  struct UseExistingToken {
+    CesiumIonClient::Token token;
+  };
+
+  struct SpecifyToken {
+    FString token;
+  };
+
+  void createRadioButton(
+      const std::shared_ptr<CesiumIonSession>& pSession,
+      const TSharedRef<SVerticalBox>& pVertical,
+      TokenSource& tokenSource,
+      TokenSource thisValue,
+      const FString& label,
+      bool requiresIonConnection,
+      const TSharedRef<SWidget>& pWidget);
+  FReply UseOrCreate(std::shared_ptr<CesiumIonSession> pSession);
+  void RefreshTokens();
+  TSharedRef<SWidget>
+  OnGenerateTokenComboBoxEntry(TSharedPtr<CesiumIonClient::Token> pToken);
+  FText GetNewTokenName() const;
+  void SetNewTokenName(const FText& text);
+  void OnSelectExistingToken(
+      TSharedPtr<CesiumIonClient::Token> pToken,
+      ESelectInfo::Type type);
+  FText GetSpecifiedToken() const;
+  void SetSpecifiedToken(const FText& text);
+
+  static TSharedPtr<SelectCesiumIonToken> _pExistingPanel;
+
+  std::optional<CesiumAsync::Promise<std::optional<CesiumIonClient::Token>>>
+      _promise;
+  std::optional<
+      CesiumAsync::SharedFuture<std::optional<CesiumIonClient::Token>>>
+      _future;
+
+  TokenSource _tokenSource = TokenSource::Create;
+  CreateNewToken _createNewToken;
+  UseExistingToken _useExistingToken;
+  SpecifyToken _specifyToken;
+  FDelegateHandle _tokensUpdatedDelegateHandle;
+  TArray<TSharedPtr<CesiumIonClient::Token>> _tokens;
+  TSharedPtr<SComboBox<TSharedPtr<CesiumIonClient::Token>>> _pTokensCombo;
+  TWeakObjectPtr<UCesiumIonServer> _pServer;
+};