feat: feat: add fuzzy_finder_mappings to customize mappings for filter popup in fuzzy_finder_mode

related issue: #451 (comment)

Author: adoyle-h

README.md

@@ -292,7 +292,14 @@ use {
               ["<c-x>"] = "clear_filter",
               ["[g"] = "prev_git_modified",
               ["]g"] = "next_git_modified",
-            }
+            },
+
+            fuzzy_finder_mappings = { -- define keymaps for filter popup window in fuzzy_finder_mode
+              ["<down>"] = "move_cursor_down",
+              ["<C-n>"] = "move_cursor_down",
+              ["<up>"] = "move_cursor_up",
+              ["<C-p>"] = "move_cursor_up",
+            },
           }
         },
         buffers = {

lua/neo-tree/defaults.lua

@@ -369,7 +369,13 @@ local config = {
         ["."] = "set_root",
         ["[g"] = "prev_git_modified",
         ["]g"] = "next_git_modified",
-      }
+      },
+      fuzzy_finder_mappings = { -- define keymaps for filter popup window in fuzzy_finder_mode
+        ["<down>"] = "move_cursor_down",
+        ["<C-n>"] = "move_cursor_down",
+        ["<up>"] = "move_cursor_up",
+        ["<C-p>"] = "move_cursor_up",
+      },
     },
     async_directory_scan = "auto", -- "auto"   means refreshes are async, but it's synchronous when called from the Neotree commands.
                                    -- "always" means directory scans are always async.

lua/neo-tree/sources/filesystem/lib/filter.lua

@@ -4,16 +4,31 @@ local vim = vim
 local Input = require("nui.input")
 local event = require("nui.utils.autocmd").event
 local fs = require("neo-tree.sources.filesystem")
-local inputs = require("neo-tree.ui.inputs")
 local popups = require("neo-tree.ui.popups")
 local renderer = require("neo-tree.ui.renderer")
 local utils = require("neo-tree.utils")
 local log = require("neo-tree.log")
 local manager = require("neo-tree.sources.manager")
-local renderer = require("neo-tree.ui.renderer")
 
 local M = {}
 
+local cmds = {
+  move_cursor_down = function(state, scroll_padding)
+    renderer.focus_node(state, nil, true, 1, scroll_padding)
+  end,
+
+  move_cursor_up = function(state, scroll_padding)
+    renderer.focus_node(state, nil, true, -1, scroll_padding)
+    vim.cmd("redraw!")
+  end,
+}
+
+local function create_input_mapping_handle(cmd, state, scroll_padding)
+  return function()
+    cmd(state, scroll_padding)
+  end
+end
+
 M.show_filter = function(state, search_as_you_type, fuzzy_finder_mode, use_fzy)
   local popup_options
   local winid = vim.api.nvim_get_current_win()
@@ -203,17 +218,15 @@ M.show_filter = function(state, search_as_you_type, fuzzy_finder_mode, use_fzy)
   end, { once = true })
 
   if fuzzy_finder_mode then
-    local move_cursor_down = function()
-      renderer.focus_node(state, nil, true, 1, scroll_padding)
-    end
-    local move_cursor_up = function()
-      renderer.focus_node(state, nil, true, -1, scroll_padding)
-      vim.cmd("redraw!")
+    local config = require("neo-tree").config
+    for lhs, cmd_name in pairs(config.filesystem.window.fuzzy_finder_mappings) do
+      local cmd = cmds[cmd_name]
+      if cmd then
+        input:map("i", lhs, create_input_mapping_handle(cmd, state, scroll_padding), { noremap = true })
+      else
+        log.warn(string.format('Invalid command in fuzzy_finder_mappings: %s = %s', lhs, cmd_name))
+      end
     end
-    input:map("i", "<down>", move_cursor_down, { noremap = true })
-    input:map("i", "<C-n>", move_cursor_down, { noremap = true })
-    input:map("i", "<up>", move_cursor_up, { noremap = true })
-    input:map("i", "<C-p>", move_cursor_up, { noremap = true })
   end
 end