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c360522488
UETOOL-332 - Collections 2.0 UETOOL-366 - Ability to search and filter assets that are only in specific collections This allows you to perform complex queries against any of the meta-data from the asset registry (using standard comparison operators), as well as being able to test other standard keys, such as the collections that contain a given asset, its name, path, or class. The syntax supports sub-expression grouping, and also partial (unquoted), exact (quoted) starts with (s...), or ends with (...s) string matching, as well as standard logic operators (OR, AND, NOT). ReviewedBy Andrew.Rodham [CL 2578624 by Jamie Dale in Main branch]
119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#pragma once
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/**
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* A widget to provide a search box with a filtered dropdown menu.
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*/
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class EDITORWIDGETS_API SAssetSearchBox : public SCompoundWidget
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{
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public:
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SLATE_BEGIN_ARGS(SAssetSearchBox)
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: _SuggestionListPlacement( MenuPlacement_BelowAnchor )
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, _OnTextChanged()
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, _OnTextCommitted()
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, _InitialText()
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, _HintText()
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, _PossibleSuggestions(TArray<FString>())
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, _DelayChangeNotificationsWhileTyping( false )
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, _MustMatchPossibleSuggestions( false )
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{}
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/** Where to place the suggestion list */
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SLATE_ARGUMENT( EMenuPlacement, SuggestionListPlacement )
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/** Invoked whenever the text changes */
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SLATE_EVENT( FOnTextChanged, OnTextChanged )
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/** Invoked whenever the text is committed (e.g. user presses enter) */
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SLATE_EVENT( FOnTextCommitted, OnTextCommitted )
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/** Initial text to display for the search text */
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SLATE_ATTRIBUTE( FText, InitialText )
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/** Hint text to display for the search text when there is no value */
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SLATE_ATTRIBUTE( FText, HintText )
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/** All possible suggestions for the search text */
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SLATE_ATTRIBUTE( TArray<FString>, PossibleSuggestions )
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/** Whether the SearchBox should delay notifying listeners of text changed events until the user is done typing */
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SLATE_ATTRIBUTE( bool, DelayChangeNotificationsWhileTyping )
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/** Whether the SearchBox allows entries that don't match the possible suggestions */
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SLATE_ATTRIBUTE( bool, MustMatchPossibleSuggestions )
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SLATE_END_ARGS()
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/** Constructs this widget with InArgs */
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void Construct( const FArguments& InArgs );
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/** Sets the text string currently being edited */
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void SetText(const TAttribute< FText >& InNewText);
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/** Set or clear the current error reporting information for this search box */
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void SetError( const FText& InError );
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void SetError( const FString& InError );
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// SWidget implementation
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virtual FReply OnPreviewKeyDown( const FGeometry& MyGeometry, const FKeyEvent& InKeyEvent ) override;
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virtual FReply OnKeyDown( const FGeometry& MyGeometry, const FKeyEvent& InKeyEvent ) override;
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virtual bool SupportsKeyboardFocus() const override;
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virtual bool HasKeyboardFocus() const override;
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virtual FReply OnFocusReceived( const FGeometry& MyGeometry, const FFocusEvent& InFocusEvent ) override;
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private:
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/** Handler for when text in the editable text box changed */
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void HandleTextChanged(const FText& NewText);
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/** Handler for when text in the editable text box changed */
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void HandleTextCommitted(const FText& NewText, ETextCommit::Type CommitType);
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/** Called by SListView when the selection changes in the suggestion list */
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void OnSelectionChanged( TSharedPtr<FString> NewValue, ESelectInfo::Type SelectInfo );
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/** Makes the widget for a suggestion message in the list view */
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TSharedRef<ITableRow> MakeSuggestionListItemWidget(TSharedPtr<FString> Text, const TSharedRef<STableViewBase>& OwnerTable);
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/** Gets the text to highlight in the suggestion list */
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FText GetHighlightText() const;
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/** Updates and shows or hides the suggestion list */
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void UpdateSuggestionList();
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/** Sets the focus to the InputText box */
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void FocusEditBox();
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/** Returns the currently selected suggestion */
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TSharedPtr<FString> GetSelectedSuggestion();
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private:
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/** The editable text field */
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TSharedPtr< SSearchBox > InputText;
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/** The the state of the text prior to being committed */
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FText PreCommittedText;
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/** Auto completion elements */
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TSharedPtr< SMenuAnchor > SuggestionBox;
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/** All suggestions stored in this widget for the list view */
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TArray< TSharedPtr<FString> > Suggestions;
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/** The list view for showing all suggestions */
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TSharedPtr< SListView< TSharedPtr<FString> > > SuggestionListView;
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/** Delegate for when text is changed in the edit box */
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FOnTextChanged OnTextChanged;
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/** Delegate for when text is changed in the edit box */
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FOnTextCommitted OnTextCommitted;
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/** All possible suggestions for the search text */
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TAttribute< TArray<FString> > PossibleSuggestions;
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/** Determines whether or not the committed text should match a suggestion */
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bool bMustMatchPossibleSuggestions;
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};
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