search: Esc on the line gives it up, Esc in the list lets go of it

Typing after / only tries a search: Esc, or back, puts the list back as it
was before the line opened, and only Enter keeps the results. In the list,
Esc lets go of one thing at a time, so after the document it clears the
search, with the cursor kept on the row it was on; back on a phone does the
same before going up a folder. A late answer to an older search no longer
lands over a newer one, and closing the last document puts the folder back
in the address bar.

docs/wiki/Commands.md

@@ -51,9 +51,9 @@ arguments and `↑` / `↓` recall earlier lines.
 | `Ctrl-P` | go to anything by its name, in every space — words before the last narrow the path, as in proj/ingest; Tab or Ctrl-N/P walk, Enter goes |
 | `b` | the board, on the plan screen: this space's, or the last one shown — 1 … 9 there shows another's |
 | `c` | capture a card into this space's inbox, without leaving here — reading a document, a card about it; Tab on the line makes it a note, or a line in today's entry |
-| `Esc · q` | close the document, and its tile when there are several — Esc first puts down what m picked up |
-| `/` | full-text search, inside the current space and its text files — Tab takes it to every space, Ctrl-N/P walk the results, Enter opens one |
-| `n / N` | next / previous search result, opened beside the results — :noh clears the search |
+| `Esc · q` | close the document, and its tile when there are several — Esc first puts down what m picked up, and in the list lets go of a search |
+| `/` | full-text search, inside the current space and its text files — Tab takes it to every space, Ctrl-N/P walk the results, Enter opens one, Esc gives up |
+| `n / N` | next / previous search result, opened beside the results — Esc or :noh clears the search |
 | `x · dd` | delete what has focus — the row in the list, the document in its pane — into the trash (asks y/N) |
 | `u` | undo the last delete: it comes back out of the trash — :trash has the rest |
 | `gh` | the open document's earlier versions, as diffs — Enter brings one back |

docs/wiki/Files-and-Search.md

@@ -58,8 +58,10 @@ space, and back (`:search!` does the same from the command line).
 
 Results appear as you type, ranked by relevance, each with the space and
 folder it is in. `Ctrl-N` / `Ctrl-P` walk them without leaving the
-line, and `Enter` opens the one lit. Afterwards `n` and `N` open the next and
-previous result beside the list, and `:noh` clears the search.
+line, and `Enter` opens the one lit and keeps the results in the list. `Esc`
+on the line gives the search up, and the list is as it was before `/`.
+Afterwards `n` and `N` open the next and previous result beside the list, and
+`Esc` in the list (or `:noh`, or back on a phone) clears the search.
 
 Cards are searched too, by their title, description and checklist steps. They
 are listed after the documents, under `cards`, with the board and list each is

web/src/lib/CommandLine.svelte

@@ -121,6 +121,26 @@
     void tick().then(() => list?.querySelector('.current')?.scrollIntoView({ block: 'nearest' }))
   })
 
+  /*
+   * What the list showed before the search line opened. Esc, or anything else
+   * that closes the line without Enter, puts it back, as vim puts the cursor
+   * back when a `/` is abandoned: typing a search only tries it.
+   */
+  const before = untrack(() => ({
+    query: workspace.tree.query,
+    global: workspace.tree.globalSearch,
+    selected: workspace.tree.selected?.id,
+  }))
+  let entered = false
+
+  $effect(() => () => {
+    if (entered) return
+    const { tree } = workspace
+    if (tree.query !== before.query || tree.globalSearch !== before.global) {
+      void workspace.guard(() => tree.search(before.query, before.global, before.selected))
+    }
+  })
+
   // A search is live: the list filters as you type, like `incsearch`.
   $effect(() => {
     if (!isSearch) return
@@ -174,6 +194,7 @@
     const line = value
     // Closing takes the line's props with it, so what it was is read first.
     const [jumping, searching, place] = [jump, isSearch, places[lit]]
+    entered = true
     remember(historyKey, line)
     close()
     if (jumping) return go(place)

web/src/lib/Sidebar.svelte

@@ -101,7 +101,7 @@
     <div class="filter">
       <span class="muted">/</span><span class="query">{workspace.tree.query}</span>
       {#if workspace.tree.globalSearch}<span class="muted scope">all spaces</span>{/if}
-      <button title="clear search (n)" onclick={() => workspace.guard(() => workspace.tree.search(''))}>esc</button>
+      <button title="clear the search (Esc)" onclick={() => workspace.guard(() => workspace.tree.clearSearch())}>esc</button>
     </div>
   {/if}
 

web/src/lib/actions.ts

@@ -431,16 +431,19 @@ export const actions: { [C in Context]: Record<ActionOf<C>, Run> } = {
       if (workspace.open) void runCommand('q')
       else workspace.tree.unmarkAll()
     },
-    // Esc lets go of one thing at a time: what is carried, then the document.
+    // Esc lets go of one thing at a time: what is carried, then what has the
+    // keys — the document read, or the search the list shows — then the rest.
     escape: () => {
       if (workspace.tree.marked.length) return workspace.tree.unmarkAll()
+      if (workspace.open && workspace.pane === 'document') return void runCommand('q')
+      if (workspace.tree.query) return guard(() => workspace.tree.clearSearch())
       if (workspace.open) void runCommand('q')
     },
     delete: () => void runCommand('d'),
     // A delete goes to the trash, so it can be undone the way vim undoes.
     undo: () => guard(() => workspace.tree.undoDelete()),
     // Through the results, as vim's `n` goes through the matches; the
-    // search itself stays until `:noh`.
+    // search itself stays until Esc or `:noh`.
     next: () => guard(() => workspace.tree.nextResult(1)),
     previous: () => guard(() => workspace.tree.nextResult(-1)),
     search: () => line('/'),

web/src/lib/keymap.ts

@@ -117,10 +117,10 @@ export const bindings = [
   { context: 'global', keys: ['Ctrl-p'], action: 'find', label: 'Ctrl-P', help: 'go to anything by its name, in every space — words before the last narrow the path, as in proj/ingest; Tab or Ctrl-N/P walk, Enter goes', essential: true },
   { context: 'global', keys: ['b'], action: 'board', help: "the board, on the plan screen: this space's, or the last one shown — 1 … 9 there shows another's" },
   { context: 'tree', keys: ['c'], action: 'capture', help: "capture a card into this space's inbox, without leaving here — reading a document, a card about it; Tab on the line makes it a note, or a line in today's entry", essential: true },
-  { context: 'tree', keys: ['q'], action: 'close', label: 'Esc · q', help: 'close the document, and its tile when there are several — Esc first puts down what m picked up', essential: true },
+  { context: 'tree', keys: ['q'], action: 'close', label: 'Esc · q', help: 'close the document, and its tile when there are several — Esc first puts down what m picked up, and in the list lets go of a search', essential: true },
   { context: 'tree', keys: ['Escape'], action: 'escape' },
-  { context: 'tree', keys: ['/'], action: 'search', help: 'full-text search, inside the current space and its text files — Tab takes it to every space, Ctrl-N/P walk the results, Enter opens one', essential: true },
-  { context: 'tree', keys: ['n'], action: 'next', label: 'n / N', help: 'next / previous search result, opened beside the results — :noh clears the search' },
+  { context: 'tree', keys: ['/'], action: 'search', help: 'full-text search, inside the current space and its text files — Tab takes it to every space, Ctrl-N/P walk the results, Enter opens one, Esc gives up', essential: true },
+  { context: 'tree', keys: ['n'], action: 'next', label: 'n / N', help: 'next / previous search result, opened beside the results — Esc or :noh clears the search' },
   { context: 'tree', keys: ['N'], action: 'previous' },
   { context: 'tree', keys: ['x', 'dd'], action: 'delete', help: 'delete what has focus — the row in the list, the document in its pane — into the trash (asks y/N)', essential: true },
   { context: 'tree', keys: ['u'], action: 'undo', help: 'undo the last delete: it comes back out of the trash — :trash has the rest', essential: true },

web/src/lib/modes.ts

@@ -155,7 +155,7 @@ export function claim(event: KeyboardEvent): boolean {
 /*
  * The phone's back gesture, or its back button: one thing let go of, the way
  * Esc and q let go of it on a keyboard — a question, the line, a sheet, the
- * drawer, the editor, a tile — and then up a folder. False when there is
+ * drawer, the editor, a tile, a search — and then up a folder. False when there is
  * nothing left to leave, and the app itself may go.
  */
 export function back(): boolean {
@@ -177,6 +177,7 @@ function leaving(): (() => unknown) | null {
   if (workspace.fullscreen) return () => (workspace.fullscreen = false)
   if (workspace.focus !== 'list' && workspace.focus !== 'node') return () => runCommand('close')
   if (workspace.open && workspace.pane === 'document') return () => runCommand('q')
+  if (tree.query) return () => workspace.guard(() => tree.clearSearch())
   if (tree.path.length > 1) return () => workspace.guard(() => tree.up())
   return null
 }

web/src/lib/state/tiles.svelte.ts

@@ -180,6 +180,8 @@ export class Tiles {
     this.current.clear()
     this.prune()
     if (!this.current.empty) this.focusOn(this.focused)
+    // Nothing open: the address is the folder's again.
+    else this.ws.tree.syncUrl(this.ws.tree.path)
   }
 
   /**

web/src/lib/state/tree.svelte.ts

@@ -239,6 +239,7 @@ export class Tree {
     const folder = await api.getNode(id)
     // Walking into another space by a link leaves this one where it was.
     if (this.spaceId !== null && folder.path[0]?.id !== this.spaceId) this.#rememberSpot()
+    this.#reading++
     this.parentId = id
     this.parentSealed = folder.sealed
     this.query = ''
@@ -259,19 +260,27 @@ export class Tree {
     await this.goTo(parent.id, from.id)
   }
 
+  /** Which `refresh` is the latest: an older one answering late is dropped. */
+  #reading = 0
+
   /** `keep` follows a node that just arrived, instead of holding the cursor. */
   async refresh(keep?: number) {
     const keepId = keep ?? this.selected?.id
+    const reading = ++this.#reading
     if (this.query) {
       const space = this.searchSpace
       // A note is in no space, so every search looks through them all.
-      ;[this.nodes, this.foundCards, this.foundNotes] = await Promise.all([
+      const found = await Promise.all([
         api.listNodes({ q: this.query, space }),
         api.searchCards(this.query, space),
         api.scratch(this.query),
       ])
+      if (reading !== this.#reading) return
+      ;[this.nodes, this.foundCards, this.foundNotes] = found
     } else {
-      this.nodes = await this.#withFiles(await api.listNodes({ parent: this.parentId ?? undefined }))
+      const nodes = await this.#withFiles(await api.listNodes({ parent: this.parentId ?? undefined }))
+      if (reading !== this.#reading) return
+      this.nodes = nodes
       this.foundCards = []
       this.foundNotes = []
     }
@@ -312,11 +321,17 @@ export class Tree {
     return this.globalSearch ? undefined : (this.spaceId ?? undefined)
   }
 
-  async search(query: string, global = this.globalSearch) {
+  /** `keep`: the node the cursor stays on, when the list it lands in has it. */
+  async search(query: string, global = this.globalSearch, keep?: number) {
     this.query = query
     this.globalSearch = global && query !== ''
     this.cursor = 0
-    await this.refresh()
+    await this.refresh(keep)
+  }
+
+  /** Esc, or back: the search let go of, the folder shown again with the cursor where it was in the results. */
+  async clearSearch() {
+    await this.search('', false, this.selected?.id)
   }
 
   /**