cista-front/src/App.vue

@@ -15,14 +15,8 @@
 import { RouterView } from 'vue-router'
 import type { ComputedRef } from 'vue'
 import type HeaderMain from '@/components/HeaderMain.vue'
-import { onMounted, onUnmounted, ref, watchEffect } from 'vue'
-import createWebSocket from '@/repositories/WS'
-import {
-  url_document_watch_ws,
-  url_document_upload_ws,
-  DocumentHandler,
-  DocumentUploadHandler
-} from '@/repositories/Document'
+import { onMounted, onUnmounted, ref } from 'vue'
+import { watchConnect, watchDisconnect } from '@/repositories/WS'
 import { useDocumentStore } from '@/stores/documents'
 
 import { computed } from 'vue'
@@ -41,23 +35,10 @@ const path: ComputedRef<Path> = computed(() => {
     pathList
   }
 })
+onMounted(watchConnect)
+onUnmounted(watchDisconnect)
 // Update human-readable x seconds ago messages from mtimes
 setInterval(documentStore.updateModified, 1000)
-watchEffect(() => {
-  const documentHandler = new DocumentHandler()
-  const documentUploadHandler = new DocumentUploadHandler()
-  const wsWatch = createWebSocket(
-    url_document_watch_ws,
-    documentHandler.handleWebSocketMessage
-  )
-  const wsUpload = createWebSocket(
-    url_document_upload_ws,
-    documentUploadHandler.handleWebSocketMessage
-  )
-
-  documentStore.wsWatch = wsWatch
-  documentStore.wsUpload = wsUpload
-})
 const headerMain = ref<typeof HeaderMain | null>(null)
 let vert = 0
 let timer: any = null

cista-front/src/assets/main.css

@@ -197,6 +197,9 @@ main {
   padding-bottom: 3em; /* convenience space on the bottom */
   overflow-y: scroll;
 }
+.spacer { flex-grow: 1 }
+.smallgap { margin-left: 2em }
+
 [data-tooltip]:hover:after {
   z-index: 101;
   content: attr(data-tooltip);
@@ -206,7 +209,7 @@ main {
   padding: .5rem 1rem;
   border-radius: 3rem 0 3rem 0;
   box-shadow: 0 0 1rem var(--accent-color);
-  transform: translate(calc(1rem + -50%), 100%);
+  transform: translate(calc(1rem + -50%), 150%);
   background-color: var(--accent-color);
   color: var(--primary-color);
   white-space: pre;

cista-front/src/components/FileExplorer.vue

@@ -59,17 +59,13 @@
       <template
         v-for="doc of sorted(props.documents as Document[])"
         :key="doc.key">
-        <tr v-if="doc.loc !== prevloc && ((prevloc = doc.loc) || true)">
+        <tr class="folder-change" v-if="doc.loc !== prevloc && ((prevloc = doc.loc) || true)">
           <th colspan="5"><BreadCrumb :path="doc.loc ? doc.loc.split('/') : []" /></th>
         </tr>
 
         <tr
           :id="`file-${doc.key}`"
-          :class="{
-            file: doc.type === 'file',
-            folder: doc.type === 'folder',
-            cursor: cursor === doc
-          }"
+          :class="{ file: !doc.dir, folder: doc.dir, cursor: cursor === doc }"
           @click="cursor = cursor === doc ? null : doc"
           @contextmenu.prevent="contextMenu($event, doc)"
         >
@@ -104,7 +100,7 @@
                 @focus.stop="cursor = doc"
                 @blur="ev => { if (!editing) cursor = null }"
                 @keyup.left="router.back()"
-                @keyup.right.stop="ev => { if (doc.type === 'folder') (ev.target as HTMLElement).click() }"
+                @keyup.right.stop="ev => { if (doc.dir) (ev.target as HTMLElement).click() }"
                 >{{ doc.name }}</a
               >
               <button
@@ -133,7 +129,7 @@
           </td>
         </tr>
       </template>
-    <tr>
+      <tr class="summary">
         <td colspan="3" class="right">{{props.documents.length}} items shown:</td>
         <td class="size right">{{ formatSize(props.documents.reduce((a, b) => a + b.size, 0)) }}</td>
         <td class="menu"></td>
@@ -148,7 +144,7 @@ import { ref, computed, watchEffect, onBeforeUpdate } from 'vue'
 import { useDocumentStore } from '@/stores/documents'
 import type { Document } from '@/repositories/Document'
 import FileRenameInput from './FileRenameInput.vue'
-import createWebSocket from '@/repositories/WS'
+import { connect, controlUrl } from '@/repositories/WS'
 import { collator, formatSize, formatUnixDate } from '@/utils'
 import { useRouter } from 'vue-router'
 
@@ -163,14 +159,15 @@ const documentStore = useDocumentStore()
 const router = useRouter()
 const url_for = (doc: Document) => {
   const p = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
-  return doc.type === 'folder' ? `#/${p}/` : `/files/${p}`
+  return doc.dir ? `#/${p}/` : `/files/${p}`
 }
 const cursor = ref<Document | null>(null)
 // File rename
 const editing = ref<Document | null>(null)
 const rename = (doc: Document, newName: string) => {
   const oldName = doc.name
-  const control = createWebSocket('/api/control', (ev: MessageEvent) => {
+  const control = connect(controlUrl, {
+    message(ev: MessageEvent) {
       const msg = JSON.parse(ev.data)
       if ('error' in msg) {
         console.error('Rename failed', msg.error.message, msg.error)
@@ -178,6 +175,7 @@ const rename = (doc: Document, newName: string) => {
       } else {
         console.log('Rename succeeded', msg)
       }
+    }
   })
   control.onopen = () => {
     control.send(
@@ -204,6 +202,7 @@ defineExpose({
       modified: formatUnixDate(now),
       haystack: '',
     }
+    console.log("New")
   },
   toggleSelectAll() {
     console.log('Select')
@@ -289,7 +288,16 @@ watchEffect(() => {
   }
 })
 const mkdir = (doc: Document, name: string) => {
-  const control = createWebSocket('/api/control', (ev: MessageEvent) => {
+  const control = connect(controlUrl, {
+    open() {
+      control.send(
+        JSON.stringify({
+          op: 'mkdir',
+          path: `${doc.loc}/${name}`
+        })
+      )
+    },
+    message(ev: MessageEvent) {
       const msg = JSON.parse(ev.data)
       if ('error' in msg) {
         console.error('Mkdir failed', msg.error.message, msg.error)
@@ -298,15 +306,8 @@ const mkdir = (doc: Document, name: string) => {
         console.log('mkdir', msg)
         router.push(`/${doc.loc}/${name}/`)
       }
-  })
-  control.onopen = () => {
-    control.send(
-      JSON.stringify({
-        op: 'mkdir',
-        path: `${doc.loc}/${name}`
-      })
-    )
     }
+  })
   doc.name = name // We should get an update from watch but this is quicker
 }
 
@@ -499,6 +500,9 @@ tbody .selection input {
   font-size: 3rem;
   color: var(--accent-color);
 }
+.folder-change {
+  margin-left: -.5rem;
+}
 .loc {
   color: #888;
 }

cista-front/src/components/HeaderMain.vue

@@ -1,26 +1,3 @@
-<script setup lang="ts">
-import { useDocumentStore } from '@/stores/documents'
-import { ref, nextTick } from 'vue'
-
-const documentStore = useDocumentStore()
-const showSearchInput = ref<boolean>(false)
-const search = ref<HTMLInputElement | null>()
-const searchButton = ref<HTMLButtonElement | null>()
-
-const toggleSearchInput = () => {
-  showSearchInput.value = !showSearchInput.value
-  nextTick(() => {
-    const input = search.value
-    if (input) input.focus()
-    //else if (searchButton.value) document.querySelector('.breadcrumb')!.focus()
-  })
-}
-
-defineExpose({
-  toggleSearchInput
-})
-</script>
-
 <template>
   <nav class="headermain">
     <div class="buttons">
@@ -39,16 +16,46 @@ defineExpose({
           v-model="documentStore.search"
           placeholder="Search words"
           class="margin-input"
-          @blur="() => { if (documentStore.search === '') toggleSearchInput() }"
-          @keyup.esc="toggleSearchInput"
+          @keyup.escape="closeSearch"
         />
       </template>
-      <SvgButton ref="searchButton" name="find" @click="toggleSearchInput" />
+      <SvgButton ref="searchButton" name="find" @click.prevent="toggleSearchInput" />
       <SvgButton name="cog" @click="console.log('settings menu')" />
     </div>
   </nav>
 </template>
 
+<script setup lang="ts">
+import { useDocumentStore } from '@/stores/documents'
+import { ref, nextTick } from 'vue'
+
+const documentStore = useDocumentStore()
+const showSearchInput = ref<boolean>(false)
+const search = ref<HTMLInputElement | null>()
+const searchButton = ref<HTMLButtonElement | null>()
+
+const closeSearch = () => {
+  if (!showSearchInput.value) return  // Already closing
+  showSearchInput.value = false
+  documentStore.search = ''
+  const breadcrumb = document.querySelector('.breadcrumb') as HTMLElement
+  breadcrumb.focus()
+}
+const toggleSearchInput = () => {
+  showSearchInput.value = !showSearchInput.value
+  if (!showSearchInput.value) return closeSearch()
+  nextTick(() => {
+    const input = search.value
+    if (input) input.focus()
+  })
+}
+
+defineExpose({
+  toggleSearchInput,
+  closeSearch,
+})
+</script>
+
 <style scoped>
 .buttons {
   padding: 0;
@@ -60,12 +67,6 @@ defineExpose({
 .buttons > * {
   flex-shrink: 1;
 }
-.spacer {
-  flex-grow: 1;
-}
-.smallgap {
-  margin-left: 2em;
-}
 input[type='search'] {
   background: var(--primary-background);
   color: var(--primary-color);

cista-front/src/components/HeaderSelected.vue

@@ -11,7 +11,7 @@
 </template>
 
 <script setup lang="ts">
-import createWebSocket from '@/repositories/WS'
+import {connect, controlUrl} from '@/repositories/WS'
 import { useDocumentStore } from '@/stores/documents'
 import { computed } from 'vue'
 import type { SelectedItems } from '@/repositories/Document'
@@ -26,21 +26,27 @@ const op = (op: string, dst?: string) => {
   const sel = documentStore.selectedFiles
   const msg = {
     op,
-    sel: sel.ids.filter(id => sel.selected.has(id)).map(id => sel.fullpath[id])
+    sel: sel.keys.map(key => {
+      const doc = sel.docs[key]
+      return doc.loc ? `${doc.loc}/${doc.name}` : doc.name
+    })
   }
   // @ts-ignore
   if (dst !== undefined) msg.dst = dst
-  const control = createWebSocket('/api/control', ev => {
+  const control = connect(controlUrl, {
+    message(ev: WebSocmetMessageEvent) {
       const res = JSON.parse(ev.data)
       if ('error' in res) {
         console.error('Control socket error', msg, res.error)
+        documentStore.error = res.error.message
         return
       } else if (res.status === 'ack') {
         console.log('Control ack OK', res)
         control.close()
         documentStore.selected.clear()
         return
-    } else console.log('Unknown control respons', msg, res)
+      } else console.log('Unknown control response', msg, res)
+    }
   })
   control.onopen = () => {
     control.send(JSON.stringify(msg))
@@ -57,21 +63,15 @@ const linkdl = (href: string) => {
 const filesystemdl = async (sel: SelectedItems, handle: FileSystemDirectoryHandle) => {
   let hdir = ''
   let h = handle
-  let filelist = []
-  for (const id of sel.ids) {
-    filelist.push(sel.relpath[id])
-  }
-  console.log('Downloading to filesystem', filelist)
-  for (const id of sel.ids) {
-    const rel = sel.relpath[id]
-    const url = sel.url[id] // Only files, not folders
+  console.log('Downloading to filesystem', sel.recursive)
+  for (const [rel, full, doc] of sel.recursive) {
     // Create any missing directories
-    if (!rel.startsWith(hdir)) {
+    if (hdir && !rel.startsWith(hdir + '/')) {
       hdir = ''
       h = handle
     }
     const r = rel.slice(hdir.length)
-    for (const dir of r.split('/').slice(0, url ? -1 : undefined)) {
+    for (const dir of r.split('/').slice(0, doc.dir ? undefined : -1)) {
       hdir += `${dir}/`
       try {
         h = await h.getDirectoryHandle(dir.normalize('NFC'), { create: true })
@@ -81,17 +81,18 @@ const filesystemdl = async (sel: SelectedItems, handle: FileSystemDirectoryHandl
       }
       console.log('Created', hdir)
     }
-    if (!url) continue // Target was a folder and was created
+    if (doc.dir) continue // Target was a folder and was created
     const name = rel.split('/').pop()!.normalize('NFC')
     // Download file
     let fileHandle
     try {
       fileHandle = await h.getFileHandle(name, { create: true })
     } catch (error) {
-      console.error('Failed to create file', hdir + name, error)
+      console.error('Failed to create file', rel, full, hdir + name, error)
       return
     }
     const writable = await fileHandle.createWritable()
+    const url = `/files/${rel}`
     console.log('Fetching', url)
     const res = await fetch(url)
     if (!res.ok)
@@ -109,16 +110,16 @@ const filesystemdl = async (sel: SelectedItems, handle: FileSystemDirectoryHandl
 const download = async () => {
   const sel = documentStore.selectedFiles
   console.log('Download', sel)
-  if (sel.selected.size === 0) {
-    console.warn('Attempted download but no files found. Missing:', sel.missing)
+  if (sel.keys.length === 0) {
+    console.warn('Attempted download but no files found. Missing selected keys:', sel.missing)
     documentStore.selected.clear()
     return
   }
   // Plain old a href download if only one file (ignoring any folders)
-  const urls = Object.values(sel.url)
-  if (urls.length === 1) {
+  const files = sel.recursive.filter(([rel, full, doc]) => !doc.dir)
+  if (files.length === 1) {
     documentStore.selected.clear()
-    return linkdl(urls[0] as string)
+    return linkdl(`/files/${files[0][1]}`)
   }
   // Use FileSystem API if multiple files and the browser supports it
   if ('showDirectoryPicker' in window) {
@@ -137,7 +138,7 @@ const download = async () => {
     }
   }
   // Otherwise, zip and download
-  linkdl(`/zip/${Array.from(sel.selected).join('+')}/download.zip`)
+  linkdl(`/zip/${Array.from(sel.keys).join('+')}/download.zip`)
   documentStore.selected.clear()
 }
 </script>

cista-front/src/repositories/Document.ts

@@ -1,6 +1,3 @@
-import { useDocumentStore } from '@/stores/documents'
-import createWebSocket from './WS'
-
 export type FUID = string
 
 export type Document = {
@@ -13,7 +10,7 @@ export type Document = {
   mtime: number
   modified: string
   haystack: string
-  dir?: DirList
+  dir: boolean
 }
 
 export type errorEvent = {
@@ -52,111 +49,8 @@ export type UpdateEntry = {
 
 // Helper structure for selections
 export interface SelectedItems {
-  selected: Set<FUID>
+  keys: FUID[]
+  docs: Record<FUID, Document>
+  recursive: Array<[string, string, Document]>
   missing: Set<FUID>
-  rootdir: DirList
-  entries: Record<FUID, FileEntry | DirEntry>
-  fullpath: Record<FUID, string>
-  relpath: Record<FUID, string>
-  url: Record<FUID, string>
-  ids: FUID[]
-}
-
-export const url_document_watch_ws = '/api/watch'
-export const url_document_upload_ws = '/api/upload'
-export const url_document_get = '/files'
-
-export class DocumentHandler {
-  constructor(private store = useDocumentStore()) {
-    this.handleWebSocketMessage = this.handleWebSocketMessage.bind(this)
-  }
-
-  handleWebSocketMessage(event: MessageEvent) {
-    const msg = JSON.parse(event.data)
-    if ('error' in msg) {
-      if (msg.error.code === 401) {
-        this.store.user.isLoggedIn = false
-        this.store.user.isOpenLoginModal = true
-      } else {
-        this.store.error = msg.error.message
-      }
-      // The server closes the websocket after errors, so we need to reopen it
-      setTimeout(() => {
-        this.store.wsWatch = createWebSocket(
-          url_document_watch_ws,
-          this.handleWebSocketMessage
-        )
-      }, 1000)
-    }
-    switch (true) {
-      case !!msg.root:
-        this.handleRootMessage(msg)
-        break
-      case !!msg.update:
-        this.handleUpdateMessage(msg)
-        break
-      case !!msg.space:
-        console.log('Watch space', msg.space)
-        break
-      case !!msg.error:
-        this.handleError(msg)
-        break
-      default:
-    }
-  }
-
-  private handleRootMessage({ root }: { root: DirEntry }) {
-    console.log('Watch root', root)
-    if (this.store) {
-      this.store.user.isLoggedIn = true
-      this.store.updateRoot(root)
-    }
-  }
-  private handleUpdateMessage(updateData: { update: UpdateEntry[] }) {
-    console.log('Watch update', updateData.update)
-    let node: DirEntry = this.store.root
-    for (const elem of updateData.update) {
-      if (elem.deleted) {
-        delete node.dir[elem.name]
-        break // Deleted elements can't have further children
-      }
-      if (elem.name !== undefined) {
-        // @ts-ignore
-        node = node.dir[elem.name] ||= {}
-      }
-      if (elem.key !== undefined) node.key = elem.key
-      if (elem.size !== undefined) node.size = elem.size
-      if (elem.mtime !== undefined) node.mtime = elem.mtime
-      if (elem.dir !== undefined) node.dir = elem.dir
-    }
-    this.store.updateRoot()
-  }
-  private handleError(msg: errorEvent) {
-    if (msg.error.code === 401) {
-      this.store.user.isOpenLoginModal = true
-      this.store.user.isLoggedIn = false
-      return
-    }
-  }
-}
-
-export class DocumentUploadHandler {
-  constructor(private store = useDocumentStore()) {
-    this.handleWebSocketMessage = this.handleWebSocketMessage.bind(this)
-  }
-
-  handleWebSocketMessage(event: MessageEvent) {
-    const msg = JSON.parse(event.data)
-    switch (true) {
-      case !!msg.written:
-        this.handleWrittenMessage(msg)
-        break
-      default:
-    }
-  }
-
-  private handleWrittenMessage(msg: { written: number }) {
-    // if (this.store && this.store.root) this.store.root = root;
-    console.log('Written message', msg.written)
-  }
 }

cista-front/src/repositories/WS.ts

@@ -1,8 +1,118 @@
-function createWebSocket(url: string, eventHandler: (event: MessageEvent) => void) {
-  const urlObject = new URL(url, location.origin.replace(/^http/, 'ws'))
-  const webSocket = new WebSocket(urlObject)
-  webSocket.onmessage = eventHandler
+import { useDocumentStore } from "@/stores/documents"
+import type { DirEntry, UpdateEntry, errorEvent } from "./Document"
+
+export const controlUrl = '/api/control'
+export const uploadUrl = '/api/upload'
+export const watchUrl = '/api/watch'
+
+let tree = null as DirEntry | null
+let reconnectDuration = 500
+let wsWatch = null as WebSocket | null
+
+export const connect = (path: string, handlers: Partial<Record<keyof WebSocketEventMap, any>>) => {
+  const webSocket = new WebSocket(new URL(path, location.origin.replace(/^http/, 'ws')))
+  for (const [event, handler] of Object.entries(handlers)) webSocket.addEventListener(event, handler)
   return webSocket
 }
 
-export default createWebSocket
+export const watchConnect = async () => {
+  wsWatch = connect(watchUrl, {
+    open() { console.log("Connected to", watchUrl)},
+    message: handleWatchMessage,
+    close: watchReconnect,
+  })
+  await wsWatch
+}
+
+export const watchDisconnect = () => {
+  if (!wsWatch) return
+  wsWatch.close()
+  wsWatch = null
+}
+
+const watchReconnect = (event: MessageEvent) => {
+  const store = useDocumentStore()
+  if (store.connected) {
+    console.warn("Disconnected from server", event)
+    store.connected = false
+  }
+  reconnectDuration = Math.min(5000, reconnectDuration + 500)
+  // The server closes the websocket after errors, so we need to reopen it
+  setTimeout(() => {
+    wsWatch = connect(watchUrl, {
+      message: handleWatchMessage,
+      close: watchReconnect,
+    })
+    console.log("Attempting to reconnect...")
+  }, reconnectDuration)
+}
+
+
+const handleWatchMessage = (event: MessageEvent) => {
+  const store = useDocumentStore()
+  const msg = JSON.parse(event.data)
+  if ('error' in msg) {
+    if (msg.error.code === 401) {
+      store.user.isLoggedIn = false
+      store.user.isOpenLoginModal = true
+    } else {
+      store.error = msg.error.message
+    }
+  }
+  switch (true) {
+    case !!msg.root:
+      handleRootMessage(msg)
+      break
+    case !!msg.update:
+      handleUpdateMessage(msg)
+      break
+    case !!msg.space:
+      console.log('Watch space', msg.space)
+      break
+    case !!msg.error:
+      handleError(msg)
+      break
+    default:
+  }
+}
+
+function handleRootMessage({ root }: { root: DirEntry }) {
+  const store = useDocumentStore()
+  console.log('Watch root', root)
+  reconnectDuration = 500
+  store.connected = true
+  store.user.isLoggedIn = true
+  store.updateRoot(root)
+  tree = root
+}
+
+function handleUpdateMessage(updateData: { update: UpdateEntry[] }) {
+  const store = useDocumentStore()
+  console.log('Watch update', updateData.update)
+  if (!tree) return console.error('Watch update before root')
+  let node: DirEntry = tree
+  for (const elem of updateData.update) {
+    if (elem.deleted) {
+      delete node.dir[elem.name]
+      break // Deleted elements can't have further children
+    }
+    if (elem.name !== undefined) {
+      // @ts-ignore
+      node = node.dir[elem.name] ||= {}
+    }
+    if (elem.key !== undefined) node.key = elem.key
+    if (elem.size !== undefined) node.size = elem.size
+    if (elem.mtime !== undefined) node.mtime = elem.mtime
+    if (elem.dir !== undefined) node.dir = elem.dir
+  }
+  store.updateRoot(tree)
+}
+
+function handleError(msg: errorEvent) {
+  const store = useDocumentStore()
+  if (msg.error.code === 401) {
+    store.user.isOpenLoginModal = true
+    store.user.isLoggedIn = false
+    return
+  }
+}

cista-front/src/stores/documents.ts

@@ -30,10 +30,9 @@ export const useDocumentStore = defineStore({
     selected: new Set<FUID>(),
     uploadingDocuments: [],
     uploadCount: 0 as number,
-    wsWatch: undefined,
-    wsUpload: undefined,
     fileExplorer: null,
     error: '' as string,
+    connected: false,
     user: {
       username: '',
       privileged: false,
@@ -44,14 +43,16 @@ export const useDocumentStore = defineStore({
 
   actions: {
     updateRoot(root: DirEntry | null = null) {
-      root ??= this.root
+      if (!root) {
+        this.document = []
+        return
+      }
       // Transform tree data to flat documents array
       let loc = ""
       const mapper = ([name, attr]: [string, FileEntry | DirEntry]) => ({
+        ...attr,
         loc,
         name,
-        type: 'dir' in attr ? 'folder' : 'file' as 'folder' | 'file',
-        ...attr,
         sizedisp: formatSize(attr.size),
         modified: formatUnixDate(attr.mtime),
         haystack: haystackFormat(name),
@@ -61,17 +62,19 @@ export const useDocumentStore = defineStore({
       for (let doc; (doc = queue.shift()) !== undefined;) {
         docs.push(doc)
         if ("dir" in doc) {
+          // Recurse but replace recursive structure with boolean
           loc = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
           queue.push(...Object.entries(doc.dir).map(mapper))
+          doc.dir = true
         }
+        else doc.dir = false
       }
       // Pre sort directory entries folders first then files, names in natural ordering
       docs.sort((a, b) =>
         // @ts-ignore
-        (a.type === "file") - (b.type === "file") ||
+        b.dir - a.dir ||
         collator.compare(a.name, b.name)
       )
-      this.root = root
       this.document = docs
     },
     updateUploadingDocuments(key: number, progress: number) {
@@ -119,53 +122,46 @@ export const useDocumentStore = defineStore({
       return ret
     },
     selectedFiles(): SelectedItems {
-      function traverseDir(data: DirEntry | FileEntry, path: string, relpath: string) {
-        if (!('dir' in data)) return
-        for (const [name, attr] of Object.entries(data.dir)) {
-          const fullname = path ? `${path}/${name}` : name
-          const key = attr.key
-          // Is this the file we are looking for? Ignore if nested within another selection.
-          let r = relpath
-          if (selected.has(key) && !relpath) {
-            ret.selected.add(key)
-            ret.rootdir[name] = attr
-            r = name
-          } else if (relpath) {
-            r = `${relpath}/${name}`
-          }
-          if (r) {
-            ret.entries[key] = attr
-            ret.fullpath[key] = fullname
-            ret.relpath[key] = r
-            ret.ids.push(key)
-            if (!('dir' in attr)) ret.url[key] = `/files/${fullname}`
-          }
-          traverseDir(attr, fullname, r)
-        }
-      }
       const selected = this.selected
+      const found = new Set<FUID>()
       const ret: SelectedItems = {
-        selected: new Set<FUID>(),
-        missing: new Set<FUID>(),
-        rootdir: {} as DirList,
-        entries: {} as Record<FUID, FileEntry | DirEntry>,
-        fullpath: {} as Record<FUID, string>,
-        relpath: {} as Record<FUID, string>,
-        url: {} as Record<FUID, string>,
-        ids: [] as FUID[]
+        missing: new Set(),
+        docs: {},
+        keys: [],
+        recursive: [],
+      }
+      for (const doc of this.document) {
+        if (selected.has(doc.key)) {
+          found.add(doc.key)
+          ret.keys.push(doc.key)
+          ret.docs[doc.key] = doc
+        }
       }
-      traverseDir(this.root, '', '')
       // What did we not select?
-      for (const id of selected) {
-        if (!ret.selected.has(id)) ret.missing.add(id)
+      for (const key of selected) if (!found.has(key)) ret.missing.add(key)
+      // Build a flat list including contents recursively
+      const relnames = new Set<string>()
+      function add(rel: string, full: string, doc: Document) {
+        if (!doc.dir && relnames.has(rel)) throw Error(`Multiple selections conflict for: ${rel}`)
+        relnames.add(rel)
+        ret.recursive.push([rel, full, doc])
       }
-      // Sorted array of FUIDs for easy traversal
-      ret.ids.sort((a, b) =>
-        ret.relpath[a].localeCompare(ret.relpath[b], undefined, {
-          numeric: true,
-          sensitivity: 'base'
-        })
-      )
+      for (const key of ret.keys) {
+        const base = ret.docs[key]
+        const basepath = base.loc ? `${base.loc}/${base.name}` : base.name
+        const nremove = base.loc.length
+        add(base.name, basepath, base)
+        for (const doc of this.document) {
+          if (doc.loc === basepath || doc.loc.startsWith(basepath) && doc.loc[basepath.length] === '/') {
+            const full = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
+            const rel = full.slice(nremove)
+            add(rel, full, doc)
+          }
+        }
+      }
+      // Sort by rel (name stored as on download)
+      ret.recursive.sort((a, b) => collator.compare(a[0], b[0]))
+
       return ret
     }
   }