feat(picker): added <a-w> to cycle windows

lua/snacks/picker/actions.lua

@@ -221,6 +221,23 @@ function M.toggle_focus(picker)
   end
 end
 
+function M.cycle_win(picker)
+  local wins = { picker.input.win.win, picker.preview.win.win, picker.list.win.win }
+  local win = vim.api.nvim_get_current_win()
+  local idx = 1
+  for i, w in ipairs(wins) do
+    if w == win then
+      idx = i
+      break
+    end
+  end
+  win = wins[idx % #wins + 1] or 1 -- cycle
+  vim.api.nvim_set_current_win(win)
+  if win == picker.input.win.win then
+    vim.cmd("startinsert")
+  end
+end
+
 function M.focus_input(picker)
   picker.input.win:focus()
   vim.cmd("startinsert")

lua/snacks/picker/config/defaults.lua

@@ -121,6 +121,7 @@ local defaults = {
         ["<c-k>"] = "list_up",
         ["<c-n>"] = "list_down",
         ["<c-p>"] = "list_up",
+        ["<a-w>"] = "cycle_win",
       },
     },
     input = {
@@ -135,6 +136,7 @@ local defaults = {
         ["?"] = "toggle_help",
         ["<a-m>"] = { "toggle_maximize", mode = { "i", "n" } },
         ["<a-p>"] = { "toggle_preview", mode = { "i", "n" } },
+        ["<a-w>"] = { "cycle_win", mode = { "i", "n" } },
         ["<C-w>"] = { "<c-s-w>", mode = { "i" }, expr = true, desc = "delete word" },
         ["<C-Up>"] = { "history_back", mode = { "i", "n" } },
         ["<C-Down>"] = { "history_forward", mode = { "i", "n" } },
@@ -173,6 +175,7 @@ local defaults = {
         ["i"] = "focus_input",
         ["<ScrollWheelDown>"] = "list_scroll_wheel_down",
         ["<ScrollWheelUp>"] = "list_scroll_wheel_up",
+        ["<a-w>"] = "cycle_win",
       },
     },
   },

lua/snacks/picker/core/picker.lua

@@ -132,6 +132,7 @@ end
 function M:init_layout(layout)
   layout = layout or Snacks.picker.config.layout(self.opts)
   self.resolved_layout = vim.deepcopy(layout)
+  self.resolved_layout.cycle = nil -- not needed for applying layout
   local opts = layout --[[@as snacks.layout.Config]]
   local preview_main = layout.preview == "main"
   local preview_hidden = layout.preview == false or preview_main
@@ -174,6 +175,7 @@ function M:set_layout(layout)
   layout = layout or Snacks.picker.config.layout(self.opts)
   layout = type(layout) == "string" and Snacks.picker.config.layout(layout) or layout
   ---@cast layout snacks.picker.Layout
+  layout.cycle = nil -- not needed for applying layout
   if vim.deep_equal(layout, self.resolved_layout) then
     -- no need to update
     return

lua/snacks/picker/core/preview.lua

@@ -77,7 +77,7 @@ function M:update(main)
   self.main = main
   self.win_opts.main.win = main
   self.win.opts = vim.tbl_deep_extend("force", self.win.opts, main and self.win_opts.main or self.win_opts.layout)
-  if main and self.win:valid() then
+  if main then
     self.win:update()
   end
 end