feat: add dynamic resizing for mini.files preview window

lua/data/autocmd.lua

@@ -1,63 +1,81 @@
 ---@module "data.autocmd"
 --- This module defines the autocommands for the Neovim configuration.
 --          ╭─────────────────────────────────────────────────────────╮
---          │                        Autocommands                       │
+--          │                        Autocommands                     │
 --          ╰─────────────────────────────────────────────────────────╯
 local M = {}
 
-M.minifiles = function(opts)
-  vim.api.nvim_create_autocmd("User", {
-    pattern = "MiniFilesBufferCreate",
-    callback = function(args)
-      local buf_id = args.data.buf_id
+local augroup = vim.api.nvim_create_augroup
+local autocmd = vim.api.nvim_create_autocmd
 
-      vim.keymap.set(
-        "n",
-        opts.mappings and opts.mappings.toggle_hidden or "g.",
-        toggle_dotfiles,
-        { buffer = buf_id, desc = "Toggle hidden files" }
-      )
+M.minifiles = {
+  ---@function Function to dynamically resize the preview window
+  dynamic_resize = function()
+    local function update_width_preview()
+      local multiplier = 0.25
+      if vim.g.minifiles_width ~= nil then
+        multiplier = vim.g.minifiles_width
+      end
+      if package.loaded["mini.files"] then
+        -- Obtain the existing config
+        local config = require("mini.files").config
+        -- Update the width_preview based on the current window size
+        if multiplier > 1 then
+          -- If the multiplier is greater than 1, use as the preview width
+          config.windows.width_preview = multiplier
+        else
+          -- Otherwise, use the current window width multiplied by the multiplier
+          config.windows.width_preview = math.floor(vim.o.columns * multiplier)
+        end
+        -- Apply the updated config
+        require("mini.files").setup(config)
+      end
+    end
 
-      vim.keymap.set(
-        "n",
-        opts.mappings and opts.mappings.change_cwd or "gc",
-        files_set_cwd,
-        { buffer = args.data.buf_id, desc = "Set cwd" }
-      )
+    -- Flag to determine if mini.files is currently in use
+    local is_mini_files_active = false
 
-      map_split(
-        buf_id,
-        opts.mappings and opts.mappings.go_in_horizontal or "<C-w>s",
-        "horizontal",
-        false
-      )
-      map_split(
-        buf_id,
-        opts.mappings and opts.mappings.go_in_vertical or "<C-w>v",
-        "vertical",
-        false
-      )
-      map_split(
-        buf_id,
-        opts.mappings and opts.mappings.go_in_horizontal_plus or "<C-w>S",
-        "horizontal",
-        true
-      )
-      map_split(
-        buf_id,
-        opts.mappings and opts.mappings.go_in_vertical_plus or "<C-w>V",
-        "vertical",
-        true
-      )
-    end,
-  })
+    -- Autocommand group to handle dynamic resizing
+    augroup("MiniFilesDynamicWidth", { clear = true })
 
-  vim.api.nvim_create_autocmd("User", {
-    pattern = "MiniFilesActionRename",
-    callback = function(event)
-      LazyVim.lsp.on_rename(event.data.from, event.data.to)
-    end,
-  })
-end
+    -- Handle mini.files open event to set the flag
+    autocmd("User", {
+      group = "MiniFilesDynamicWidth",
+      pattern = "MiniFilesExplorerOpen",
+      callback = function()
+        is_mini_files_active = true
+      end,
+    })
+
+    -- Handle mini.files close event to reset the flag and update the preview width
+    autocmd("User", {
+      group = "MiniFilesDynamicWidth",
+      pattern = "MiniFilesExplorerClose",
+      callback = function()
+        is_mini_files_active = false
+        update_width_preview()
+      end,
+    })
+
+    -- Handle window resize event
+    autocmd("VimResized", {
+      group = "MiniFilesDynamicWidth",
+      callback = function()
+        if is_mini_files_active then
+          -- Defer the update until mini.files closes
+          autocmd("User", {
+            group = "MiniFilesDynamicWidth",
+            pattern = "MiniFilesExplorerClose",
+            callback = update_width_preview,
+            once = true, -- Ensure this runs only once
+          })
+        else
+          -- If mini.files is not active, update immediately
+          update_width_preview()
+        end
+      end,
+    })
+  end,
+}
 
 return M