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b9940a88f4
You can access all context-sensitive options via the right-click menu. Also exposed the ability to refresh available tutorials (as they may have bene reloaded since). [CL 2302373 by Thomas Sarkanen in Main branch]
113 lines
3.7 KiB
C++
113 lines
3.7 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#pragma once
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class UEditorTutorial;
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DECLARE_DELEGATE_FiveParams(FOnLaunchTutorial, UEditorTutorial* /** InTutorialToLaunch */, bool /* bRestart */, TWeakPtr<SWindow> /* InFromWindow */, FSimpleDelegate /* InOnTutorialClosed */, FSimpleDelegate /* InOnTutorialExited */);
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/** Abstract base class for list entries in the tutorial menu */
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struct ITutorialListEntry
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{
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/** Generate content for a tree entry */
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virtual TSharedRef<ITableRow> OnGenerateTutorialRow(const TSharedRef<STableViewBase>& OwnerTable) const = 0;
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/** Whether this entry passes the current filter criteria */
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virtual bool PassesFilter(const FString& InCategoryFilter, const FString& InFilter) const = 0;
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};
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class FTutorialListEntry_Category;
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/**
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* The widget which holds all available tutorials
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*/
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class STutorialsBrowser : public SCompoundWidget
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{
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SLATE_BEGIN_ARGS( STutorialsBrowser ) {}
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SLATE_ARGUMENT(FSimpleDelegate, OnClosed)
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SLATE_ARGUMENT(FOnLaunchTutorial, OnLaunchTutorial)
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SLATE_ARGUMENT(TWeakPtr<SWindow>, ParentWindow)
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SLATE_END_ARGS()
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void Construct(const FArguments& Args);
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/** Set the current filter string. Filters are used to only show the specifed category of tutorials (e.g. only Blueprint tutorials) */
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void SetFilter(const FString& InFilter);
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/** Reload all tutorials that we know about */
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void ReloadTutorials();
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protected:
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/** Handle generating a table row in the browser */
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TSharedRef<ITableRow> OnGenerateTutorialRow(TSharedPtr<ITutorialListEntry> InItem, const TSharedRef<STableViewBase>& OwnerTable) const;
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/** Handle closing the browser */
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FReply OnCloseButtonClicked();
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/** Handle traversing back up the browser hierarchy */
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FReply OnBackButtonClicked();
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/** Handle whether the back button can be clicked */
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bool IsBackButtonEnabled() const;
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/** Handle back button color - used to dim the button when disabled */
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FSlateColor GetBackButtonColor() const;
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/** Delegate handler fired when a tutorial is selected form the browser */
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void OnTutorialSelected(UEditorTutorial* InTutorial, bool bRestart);
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/** Delegate handler fired when a category is selected form the browser */
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void OnCategorySelected(const FString& InCategory);
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/** Filter displayed tutorials - regenerates the displayed items */
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void FilterTutorials();
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/** Rebuild the displayed categories */
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TSharedPtr<FTutorialListEntry_Category> RebuildCategories();
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/** Rebuild the displayed tutorials */
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void RebuildTutorials(TSharedPtr<FTutorialListEntry_Category> InRootCategory);
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/** Recursive helper function used to find a category given the current NavigationFilter */
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TSharedPtr<FTutorialListEntry_Category> FindCategory_Recursive(TSharedPtr<FTutorialListEntry_Category> InCategory) const;
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/** Handle rebuilding the browser display when the filter text changes */
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void OnSearchTextChanged(const FText& InText);
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/** Supplies the text to display in the filter box */
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FText GetSearchText() const;
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private:
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/** Root entry of the tutorials tree */
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TSharedPtr<FTutorialListEntry_Category> RootEntry;
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/** Current filtered entries */
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TArray<TSharedPtr<ITutorialListEntry>> FilteredEntries;
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/** List of tutorials widget */
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TSharedPtr<SListView<TSharedPtr<ITutorialListEntry>>> TutorialList;
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/** Delegate fired when the close button is clicked */
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FSimpleDelegate OnClosed;
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/** Delegate fired when a tutorial is selected */
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FOnLaunchTutorial OnLaunchTutorial;
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/** Current search string */
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FText SearchFilter;
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/** Current category navigation string */
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FString NavigationFilter;
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/** Static category filter for this browser */
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FString CategoryFilter;
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/** Cached current category */
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TWeakPtr<FTutorialListEntry_Category> CurrentCategoryPtr;
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/** Parent window of this browser */
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TWeakPtr<SWindow> ParentWindow;
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}; |