Files
UnrealEngine/Engine/Plugins/Experimental/CommonConversation/Source/CommonConversationEditor/Private/FindInConversationGraph.h
2025-05-18 13:04:45 +08:00

117 lines
3.7 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Widgets/SCompoundWidget.h"
class ITableRow;
class STableViewBase;
class UEdGraphNode;
namespace ESelectInfo { enum Type : int; }
namespace ETextCommit { enum Type : int; }
template <typename ItemType> class STreeView;
/** Item that matched the search results */
class FFindInConversationResult
{
public:
/** Create a root (or only text) result */
FFindInConversationResult(const FString& InValue);
/** Create a BT node result */
FFindInConversationResult(const FString& InValue, TSharedPtr<FFindInConversationResult>& InParent, UEdGraphNode* InNode);
/** Called when user clicks on the search item */
FReply OnClick(TWeakPtr<class FConversationEditor> ConversationEditor, TSharedPtr<FFindInConversationResult> Root);
/** Create an icon to represent the result */
TSharedRef<SWidget> CreateIcon() const;
/** Gets the comment on this node if any */
FString GetCommentText() const;
/** Gets the node type */
FString GetNodeTypeText() const;
/** Highlights conversation graph nodes */
void SetNodeHighlight(bool bHighlight);
/** Any children listed under this conversation node */
TArray< TSharedPtr<FFindInConversationResult> > Children;
/** The string value for this result */
FString Value;
/** The graph node that this search result refers to */
TWeakObjectPtr<UEdGraphNode> GraphNode;
/** Search result parent */
TWeakPtr<FFindInConversationResult> Parent;
};
/** Widget for searching for (BT nodes) across focused Conversation */
class SFindInConversation : public SCompoundWidget
{
public:
SLATE_BEGIN_ARGS(SFindInConversation){}
SLATE_END_ARGS()
void Construct(const FArguments& InArgs, TSharedPtr<class FConversationEditor> InConversationEditor);
/** Focuses this widget's search box */
void FocusForUse();
private:
typedef TSharedPtr<FFindInConversationResult> FSearchResult;
typedef STreeView<FSearchResult> STreeViewType;
/** Called when user changes the text they are searching for */
void OnSearchTextChanged(const FText& Text);
/** Called when user commits text */
void OnSearchTextCommitted(const FText& Text, ETextCommit::Type CommitType);
/** Get the children of a row */
void OnGetChildren(FSearchResult InItem, TArray<FSearchResult>& OutChildren);
/** Called when user clicks on a new result */
void OnTreeSelectionChanged(FSearchResult Item, ESelectInfo::Type SelectInfo);
/** Called when a new row is being generated */
TSharedRef<ITableRow> OnGenerateRow(FSearchResult InItem, const TSharedRef<STableViewBase>& OwnerTable);
/** Begins the search based on the SearchValue */
void InitiateSearch();
/** Find any results that contain all of the tokens */
void MatchTokens(const TArray<FString>& Tokens);
/** Find if child contains all of the tokens and add a result accordingly */
void MatchTokensInChild(const TArray<FString>& Tokens, UEdGraphNode* Child, FSearchResult ParentNode);
/** Determines if a string matches the search tokens */
static bool StringMatchesSearchTokens(const TArray<FString>& Tokens, const FString& ComparisonString);
private:
/** Pointer back to the behavior tree editor that owns us */
TWeakPtr<class FConversationEditor> ConversationEditorPtr;
/** The tree view displays the results */
TSharedPtr<STreeViewType> TreeView;
/** The search text box */
TSharedPtr<class SSearchBox> SearchTextField;
/** This buffer stores the currently displayed results */
TArray<FSearchResult> ItemsFound;
/** we need to keep a handle on the root result, because it won't show up in the tree */
FSearchResult RootSearchResult;
/** The string to highlight in the results */
FText HighlightText;
/** The string to search for */
FString SearchValue;
};