feat: allow cycle_open_buffers (tab) to work for a single file (#451)

* feat: allow cycle_open_buffers (`tab`) to work for a single file

Issue
=====

Using `tab` to cycle through open buffers does not work when only one
buffer is open. I disabled it because I thought it was not useful in
that case, but actually it can still be useful in the following case:

- you have opened yazi and have a single buffer open in neovim (no
  splits)
- you have navigated to a different directory in the file explorer
- you have gotten lost
- you want to get back to the beginning with `tab`

Solution
========

Enable `tab` to cd to the single buffer's directory.

Solves #447

* fixup! feat: allow cycle_open_buffers (`tab`) to work for a single file

integration-tests/cypress.config.ts

@@ -60,6 +60,7 @@ export default defineConfig({
  },
  })
  },
+ experimentalRunAllSpecs: true,
  retries: {
  runMode: 2,
  openMode: 0,

integration-tests/cypress/e2e/using-ya-to-read-events/cd-to-buffer.cy.ts

@@ -115,4 +115,24 @@ describe("'cd' to another buffer's directory", () => {
  isHoveredInNeovim(view.rightFile.text)
  })
  })
+
+ it("can tab to the directory of just a single buffer", () => {
+ cy.startNeovim({
+ filename: "file.txt",
+ }).then((dir) => {
+ cy.contains("Hello")
+
+ cy.typeIntoTerminal("{upArrow}")
+ cy.contains("initial-file.txt")
+
+ cy.typeIntoTerminal(`/routes{enter}`, { delay: 1 })
+ cy.contains("posts.$postId")
+
+ // enter the directory and make sure its contents are shown
+ cy.typeIntoTerminal("l")
+ cy.contains(dir.contents["routes/posts.$postId/route.tsx"].name)
+
+ cy.typeIntoTerminal("{control+i}")
+ })
+ })
 })

lua/yazi/keybinding_helpers.lua

@@ -98,10 +98,14 @@ function YaziOpenerActions.cycle_open_buffers(context)
  ~= current_cycle_position.filename
  end)
 
+ if #visible_buffers == 1 then
+ next_buffer = buffer
+ end
+
  if not next_buffer then
  Log:debug(
  string.format(
- 'Could not find next buffer for path: "%s", probably only one is open.',
+ 'Could not find next buffer for path: "%s".',
  context.input_path
  )
  )