src/components/DiskInfo.vue

@@ -37,4 +37,19 @@ pre {
   color: #c0c0c0;
   border: 1px solid rgba(255, 255, 255, 0.3);
 }
+
+:deep(ul) {
+  padding: 0;
+}
+
+:deep(ul ul) {
+  padding: 0 0 0 1.5em;
+}
+
+:deep(li) {
+  list-style: none;
+  line-height: 1.5rem;
+  margin: 0;
+  padding: 0;
+}
 </style>

src/floppy/disk.ts

@@ -41,29 +41,25 @@ export interface IAttributes {
 
 export interface IStandardDirEntry {
   type: 'standard-entry'
-  id: string
   name: string
-  basename: string
   extension: string
   attributes: IAttributes
   size: number
   firstCluster: number
+  clusterChain: number[]
   subDirEntries: TDirEntry[]
 }
 
 export interface ILongFileNameDirEntry {
   type: 'long-filename-entry'
-  id: string
 }
 
 export interface IFinalDirEntry {
   type: 'final-entry'
-  id: string
 }
 
 export interface IUnusedDirEntry {
   type: 'unused-entry'
-  id: string
 }
 
 export type TDirEntry = IStandardDirEntry | ILongFileNameDirEntry | IFinalDirEntry | IUnusedDirEntry
@@ -192,35 +188,36 @@ export class FloppyDisk {
     return chain
   }
 
-  addDirectory(listing: string, path: string[], entries: TDirEntry[]) {
+  addDirectory(listing: string, entries: TDirEntry[]) {
+    listing += '\n<ul>'
+
     for (let i = 0; i < entries.length; i++) {
       const entry = entries[i]
-      if (
-        entry.type !== 'standard-entry' ||
-        entry.attributes.volumeId ||
-        entry.name === '..' ||
-        entry.name === '.'
-      ) {
+      if (entry.type !== 'standard-entry') {
         continue
       }
 
-      listing += `${path.join('\\') + '\\'}${entry.name}`
+      const fullName = `${entry.name}${entry.extension ? '.' + entry.extension : ''}`
 
-      if (entry.attributes.directory) {
-        listing += '\\<br/>'
-        listing = this.addDirectory(listing, [...path, entry.name], entry.subDirEntries)
+      if (entry.name === '.' || entry.name === '..' || entry.attributes.volumeId) {
+        // do nothing
+      } else if (entry.attributes.directory) {
+        listing += `\n<li>${fullName}\\`
+        listing = this.addDirectory(listing, entry.subDirEntries)
+        listing += '</li>\n'
       } else {
-        listing += '<br/>'
+        listing += `\n<li>${fullName}</li>\n`
       }
     }
 
+    listing += '\n</ul>'
     return listing
   }
 
   buildFileListing(): string {
-    let listing = '<p>\\<br/>'
-    listing += this.addDirectory('', [''], this.rootDirEntries ?? [])
-    listing += '</p>'
+    let listing = '<ul>A:\\'
+    listing += this.addDirectory('', this.rootDirEntries ?? [])
+    listing += '</ul>'
     return listing
   }
 }
@@ -308,25 +305,20 @@ function decodeDirectoryEntry(data: DataView, fd: FloppyDisk): TDirEntry | null
 
   const firstByte = data.getUint8(0)
   const attributeByte = data.getUint8(11)
-  const id = crypto.randomUUID()
 
   if (firstByte === 0) {
-    return { type: 'final-entry', id }
+    return { type: 'final-entry' }
   } else if (firstByte === 0xe5) {
-    return { type: 'unused-entry', id }
+    return { type: 'unused-entry' }
   } else if (attributeByte === 0x0f) {
-    return { type: 'long-filename-entry', id }
+    return { type: 'long-filename-entry' }
   } else {
     const asciiDecoder = new TextDecoder('ascii')
-    const basename = asciiDecoder
-      .decode(data.buffer.slice(data.byteOffset, data.byteOffset + 8))
-      .trim()
+    const name = asciiDecoder.decode(data.buffer.slice(data.byteOffset, data.byteOffset + 8)).trim()
     const extension = asciiDecoder
       .decode(data.buffer.slice(data.byteOffset + 8, data.byteOffset + 11))
       .trim()
 
-    const name = basename + (extension ? '.' + extension : '')
-
     const attributeByte = data.getUint8(11)
 
     const attributes: IAttributes = {
@@ -343,25 +335,24 @@ function decodeDirectoryEntry(data: DataView, fd: FloppyDisk): TDirEntry | null
 
     const entry: IStandardDirEntry = {
       type: 'standard-entry',
-      id,
       name,
-      basename,
       extension,
       attributes,
       firstCluster,
+      clusterChain: [],
       size,
       subDirEntries: [],
     }
 
     if (entry.attributes.directory && entry.name !== '.' && entry.name !== '..') {
-      const clusterChain = fd.clusterChain(entry.firstCluster)
+      entry.clusterChain = fd.clusterChain(entry.firstCluster)
 
-      const dataSize = clusterChain.length * fd.bytesPerCluster
+      const dataSize = entry.clusterChain.length * fd.bytesPerCluster
 
       if (dataSize !== 0) {
         const entryData = new Uint8Array(dataSize)
-        for (let i = 0; i < clusterChain.length; i++) {
-          const offset = (clusterChain[i] - 2) * fd.bytesPerCluster
+        for (let i = 0; i < entry.clusterChain.length; i++) {
+          const offset = (entry.clusterChain[i] - 2) * fd.bytesPerCluster
           const view = new Uint8Array(fd.buffer, fd.dataOffset + offset, fd.bytesPerCluster)
           entryData.set(view, i * fd.bytesPerCluster)
         }