#145 - refactored the plugin integration point and sorting function invocation and wrapper(s) to work under Obsidian 1.6.0 (which introduced significant refactoring)

Remains to do:
- polish the code to remove duplication in main.js
- full testing under 1.6.0
- regression tests under latest 1.5.x (the code is backward compatible)

src/custom-sort/custom-sort.ts

@@ -702,21 +702,45 @@ export const determineBookmarksOrderIfNeeded = (folderItems: Array<FolderItemFor
 	})
 }
 
-export const folderSort = function (sortingSpec: CustomSortSpec, ctx: ProcessingContext) {
+// This function is a replacement for the Obsidian File Explorer function sort(...) up to Obsidian 1.6.0
+//   when a major refactoring of sorting mechanics happened
+export const folderSort_vUpTo_1_6_0 = function (sortingSpec: CustomSortSpec, ctx: ProcessingContext) {
 
-	let fileExplorerView = this.fileExplorer ?? this.view  // this.view replaces the former since 1.5.4 insider build
+	const fileExplorerView = this.fileExplorer ?? this.view  // this.view replaces the former since 1.5.4 insider build
+	const folderUnderSort = this.file as TFolder
+	const sortOrder = this.sortOrder
+	const allFileItemsCollection = fileExplorerView.fileItems
+
+	const items = folderSortCore(folderUnderSort, sortOrder, sortingSpec, allFileItemsCollection, ctx)
+
+	if (requireApiVersion && requireApiVersion("0.15.0")) {
+		this.vChildren.setChildren(items);
+	} else {
+		this.children = items;
+	}
+}
+
+// This function is a replacement for the Obsidian File Explorer function getSortedFolderItems(...)
+//    which first appeared in Obsidian 1.6.0 and simplified a bit the plugin integration point
+export const getSortedFolderItems_vFrom_1_6_0 = function (sortedFolder: TFolder, sortingSpec: CustomSortSpec, ctx: ProcessingContext) {
+	const sortOrder = this.sortOrder
+	const allFileItemsCollection = this.fileItems
+	return folderSortCore(sortedFolder, sortOrder, sortingSpec, allFileItemsCollection, ctx)
+}
+
+const folderSortCore = function (sortedFolder: TFolder, sortOrder: string, sortingSpec: CustomSortSpec, allFileItemsCollection: any, ctx: ProcessingContext) {
 
 	// shallow copy of groups and expand folder-specific macros on them
 	sortingSpec.groupsShadow = sortingSpec.groups?.map((group) => Object.assign({} as CustomSortGroup, group))
-	const parentFolderName: string|undefined = this.file.name
+	const parentFolderName: string|undefined = sortedFolder.name
 	expandMacros(sortingSpec, parentFolderName)
 
 	const folderItems: Array<FolderItemForSorting> = (sortingSpec.itemsToHide ?
-		this.file.children.filter((entry: TFile | TFolder) => {
+		sortedFolder.children.filter((entry: TFile | TFolder) => {
 			return !sortingSpec.itemsToHide!.has(entry.name)
 		})
 		:
-		this.file.children)
+		sortedFolder.children)
 		.map((entry: TFile | TFolder) => {
 			const itemForSorting: FolderItemForSorting = determineSortingGroup(entry, sortingSpec, ctx)
 			return itemForSorting
@@ -729,23 +753,14 @@ export const folderSort = function (sortingSpec: CustomSortSpec, ctx: Processing
 		determineBookmarksOrderIfNeeded(folderItems, sortingSpec, ctx.bookmarksPluginInstance)
 	}
 
-	const comparator: SorterFn = getComparator(sortingSpec, fileExplorerView.sortOrder)
+	const comparator: SorterFn = getComparator(sortingSpec, sortOrder)
 
 	folderItems.sort(comparator)
 
 	const items = folderItems
-		.map((item: FolderItemForSorting) => fileExplorerView.fileItems[item.path])
+		.map((item: FolderItemForSorting) => allFileItemsCollection[item.path])
 
-	if (requireApiVersion && requireApiVersion("0.16.0")) {
-		const scrollTop = fileExplorerView.navFileContainerEl.scrollTop
-		fileExplorerView.tree.infinityScroll.rootEl.vChildren.setChildren([items])
-		fileExplorerView.navFileContainerEl.scrollTop = scrollTop
-		fileExplorerView.tree.infinityScroll.compute()
-	} else if (requireApiVersion && requireApiVersion("0.15.0")) {
-		this.vChildren.setChildren(items);
-	} else {
-		this.children = items;
-	}
+	return items
 };
 
 // Returns a sorted copy of the input array, intentionally to keep it intact

src/main.ts

@@ -21,7 +21,8 @@ import {
 } from 'obsidian';
 import {around} from 'monkey-around';
 import {
-	folderSort,
+	folderSort_vUpTo_1_6_0,
+	getSortedFolderItems_vFrom_1_6_0,
 	ObsidianStandardDefaultSortingName,
 	ProcessingContext,
 	sortFolderItemsForBookmarking
@@ -593,6 +594,46 @@ export default class CustomSortPlugin extends Plugin {
 		// That's why not showing and not logging error message here
 		patchableFileExplorer = patchableFileExplorer ?? this.checkFileExplorerIsAvailableAndPatchable(false)
 		if (patchableFileExplorer) {
+			if (requireApiVersion && requireApiVersion("1.6.0")) {
+				// Starting from Obsidian 1.6.0 the sorting mechanics has been significantly refactored internally in Obsidian
+				const uninstallerOfFolderSortFunctionWrapper: MonkeyAroundUninstaller = around(patchableFileExplorer.constructor.prototype, {
+					getSortedFolderItems(old: any) {
+                        return function (...args: any[]) {
+                            // quick check for plugin status
+                            if (plugin.settings.suspended) {
+                                return old.call(this, ...args);
+                            }
+
+                            if (plugin.ribbonIconStateInaccurate && plugin.ribbonIconEl) {
+                                plugin.ribbonIconStateInaccurate = false
+                                setIcon(plugin.ribbonIconEl, ICON_SORT_ENABLED_ACTIVE)
+                            }
+
+							const folder = args[0]
+                            let sortSpec: CustomSortSpec | null | undefined = plugin.determineSortSpecForFolder(folder.path, folder.name)
+
+                            // Performance optimization
+                            //     Primary intention: when the implicit bookmarks integration is enabled, remain on std Obsidian, if no need to involve bookmarks
+                            let has: HasSortingOrGrouping = collectSortingAndGroupingTypes(sortSpec)
+                            if (hasOnlyByBookmarkOrStandardObsidian(has)) {
+                                const bookmarksPlugin: BookmarksPluginInterface|undefined = getBookmarksPlugin(plugin.app, plugin.settings.bookmarksGroupToConsumeAsOrderingReference, false, true)
+                                if ( !bookmarksPlugin?.bookmarksIncludeItemsInFolder(folder.path)) {
+                                    sortSpec = null
+                                }
+                            }
+
+                            if (sortSpec) {
+                                return getSortedFolderItems_vFrom_1_6_0.call(this, folder, sortSpec, plugin.createProcessingContextForSorting(has))
+							} else {
+								return old.call(this, ...args);
+							}
+						};
+					}
+				})
+				this.register(uninstallerOfFolderSortFunctionWrapper)
+				return true
+			} else {
+				// Up to Obsidian 1.6.0
 				// @ts-ignore
 				let tmpFolder = new TFolder(Vault, "");
 				let Folder = patchableFileExplorer.createFolderDom(tmpFolder).constructor;
@@ -623,21 +664,16 @@ export default class CustomSortPlugin extends Plugin {
 							}
 
 							if (sortSpec) {
-							return folderSort.call(this, sortSpec, plugin.createProcessingContextForSorting(has));
+								return folderSort_vUpTo_1_6_0.call(this, sortSpec, plugin.createProcessingContextForSorting(has));
 							} else {
 								return old.call(this, ...args);
 							}
 						};
-				},*/
-				getSortedFolderItems(old: any) {
-					return function (...args: any[]) {
-						console.log(`Cuda cuda ${args?.length}`)
-						return old.call(this, ...args);
-					};
 					}
 				})
 				this.register(uninstallerOfFolderSortFunctionWrapper)
 				return true
+			}
 		} else {
 			return false
 		}