feat: override timeoutlen while hovering over diff (#781)

lua/avante/diff.lua

@@ -299,15 +299,16 @@ local function register_cursor_move_events(bufnr)
     })
   end
 
-  api.nvim_create_autocmd({ "CursorMoved", "CursorMovedI" }, {
+  api.nvim_create_autocmd({ "CursorMoved", "CursorMovedI", "WinLeave" }, {
     buffer = bufnr,
-    callback = function()
+    callback = function(event)
       local position = get_current_position(bufnr)
-
-      if position then
+      if (event.event == "CursorMoved" or event.event == "CursorMovedI") and position then
         show_keybinding_hint(position.current.range_start + 1)
+        M.override_timeoutlen(bufnr)
       else
         api.nvim_buf_clear_namespace(bufnr, KEYBINDING_NAMESPACE, 0, -1)
+        M.restore_timeoutlen(bufnr)
       end
     end,
   })
@@ -377,6 +378,24 @@ H.clear_buffer_mappings = function(bufnr)
     if vim.fn.hasmapto(mapping, "n") > 0 then api.nvim_buf_del_keymap(bufnr, "n", mapping) end
   end
   vim.b[bufnr].avante_conflict_mappings_set = false
+  M.restore_timeoutlen(bufnr)
+end
+
+---@param bufnr integer
+M.override_timeoutlen = function(bufnr)
+  if vim.b[bufnr].avante_original_timeoutlen then return end
+  if Config.diff.override_timeoutlen > 0 then
+    vim.b[bufnr].avante_original_timeoutlen = vim.o.timeoutlen
+    vim.o.timeoutlen = Config.diff.override_timeoutlen
+  end
+end
+
+---@param bufnr integer
+M.restore_timeoutlen = function(bufnr)
+  if vim.b[bufnr].avante_original_timeoutlen then
+    vim.o.timeoutlen = vim.b[bufnr].avante_original_timeoutlen
+    vim.b[bufnr].avante_original_timeoutlen = nil
+  end
 end
 
 M.augroup = api.nvim_create_augroup(AUGROUP_NAME, { clear = true })