From b33f13ccaf4ec14a94ee0ee467dda04cf4981d00 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Mon, 01 Jan 2024 22:20:34 +0000
Subject: [PATCH] fix: dont show last page if folder

---
 quartz/components/Explorer.tsx |   75 +++++++++++++++++++++++++++++++------
 1 files changed, 62 insertions(+), 13 deletions(-)

diff --git a/quartz/components/Explorer.tsx b/quartz/components/Explorer.tsx
index ce69491..e3ed9b1 100644
--- a/quartz/components/Explorer.tsx
+++ b/quartz/components/Explorer.tsx
@@ -4,34 +4,81 @@
 // @ts-ignore
 import script from "./scripts/explorer.inline"
 import { ExplorerNode, FileNode, Options } from "./ExplorerNode"
+import { QuartzPluginData } from "../plugins/vfile"
 
 // Options interface defined in `ExplorerNode` to avoid circular dependency
-const defaultOptions = (): Options => ({
+const defaultOptions = {
   title: "Explorer",
   folderClickBehavior: "collapse",
   folderDefaultState: "collapsed",
   useSavedState: true,
-})
+  mapFn: (node) => {
+    return node
+  },
+  sortFn: (a, b) => {
+    // Sort order: folders first, then files. Sort folders and files alphabetically
+    if ((!a.file && !b.file) || (a.file && b.file)) {
+      // numeric: true: Whether numeric collation should be used, such that "1" < "2" < "10"
+      // sensitivity: "base": Only strings that differ in base letters compare as unequal. Examples: a ≠ b, a = á, a = A
+      return a.displayName.localeCompare(b.displayName, undefined, {
+        numeric: true,
+        sensitivity: "base",
+      })
+    }
+
+    if (a.file && !b.file) {
+      return 1
+    } else {
+      return -1
+    }
+  },
+  filterFn: (node) => node.name !== "tags",
+  order: ["filter", "map", "sort"],
+} satisfies Options
+
 export default ((userOpts?: Partial<Options>) => {
-  function Explorer({ allFiles, displayClass, fileData }: QuartzComponentProps) {
-    // Parse config
-    const opts: Options = { ...defaultOptions(), ...userOpts }
+  // Parse config
+  const opts: Options = { ...defaultOptions, ...userOpts }
+
+  // memoized
+  let fileTree: FileNode
+  let jsonTree: string
+
+  function constructFileTree(allFiles: QuartzPluginData[]) {
+    if (fileTree) {
+      return
+    }
 
     // Construct tree from allFiles
-    const fileTree = new FileNode("")
-    allFiles.forEach((file) => fileTree.add(file, 1))
+    fileTree = new FileNode("")
+    allFiles.forEach((file) => fileTree.add(file))
 
-    // Sort tree (folders first, then files (alphabetic))
-    fileTree.sort()
+    // Execute all functions (sort, filter, map) that were provided (if none were provided, only default "sort" is applied)
+    if (opts.order) {
+      // Order is important, use loop with index instead of order.map()
+      for (let i = 0; i < opts.order.length; i++) {
+        const functionName = opts.order[i]
+        if (functionName === "map") {
+          fileTree.map(opts.mapFn)
+        } else if (functionName === "sort") {
+          fileTree.sort(opts.sortFn)
+        } else if (functionName === "filter") {
+          fileTree.filter(opts.filterFn)
+        }
+      }
+    }
 
     // Get all folders of tree. Initialize with collapsed state
     const folders = fileTree.getFolderPaths(opts.folderDefaultState === "collapsed")
 
     // Stringify to pass json tree as data attribute ([data-tree])
-    const jsonTree = JSON.stringify(folders)
+    jsonTree = JSON.stringify(folders)
+  }
 
+  function Explorer({ allFiles, displayClass, fileData }: QuartzComponentProps) {
+    constructFileTree(allFiles)
     return (
-      <div class={`explorer ${displayClass}`}>
+      <div class={`explorer ${displayClass ?? ""}`}>
         <button
           type="button"
           id="explorer"
@@ -40,7 +87,7 @@
           data-savestate={opts.useSavedState}
           data-tree={jsonTree}
         >
-          <h3>{opts.title}</h3>
+          <h1>{opts.title}</h1>
           <svg
             xmlns="http://www.w3.org/2000/svg"
             width="14"
@@ -57,13 +104,15 @@
           </svg>
         </button>
         <div id="explorer-content">
-          <ul class="overflow">
+          <ul class="overflow" id="explorer-ul">
             <ExplorerNode node={fileTree} opts={opts} fileData={fileData} />
+            <li id="explorer-end" />
           </ul>
         </div>
       </div>
     )
   }
+
   Explorer.css = explorerStyle
   Explorer.afterDOMLoaded = script
   return Explorer

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