fix: ask api (#1641)

lua/avante/api.lua

@@ -144,9 +144,10 @@ function M.ask(opts)
       close_on_submit = true,
       win_opts = {
         border = Config.windows.ask.border,
-        title = { { "ask", "FloatTitle" } },
+        title = { { "Avante Ask", "FloatTitle" } },
       },
       start_insert = Config.windows.ask.start_insert,
+      default_value = opts.question,
     })
     prompt_input:open()
     return true

lua/avante/prompt_input.lua

@@ -17,6 +17,7 @@ local Utils = require("avante.utils")
 ---@field spinner_index integer
 ---@field spinner_timer uv_timer_t | nil
 ---@field spinner_active boolean
+---@field default_value string | nil
 local PromptInput = {}
 PromptInput.__index = PromptInput
 
@@ -26,6 +27,7 @@ PromptInput.__index = PromptInput
 ---@field cancel_callback? fun():nil
 ---@field close_on_submit? boolean
 ---@field win_opts? table
+---@field default_value? string
 
 ---@param opts? PromptInputOptions
 function PromptInput:new(opts)
@@ -40,6 +42,7 @@ function PromptInput:new(opts)
   obj.cancel_callback = opts.cancel_callback
   obj.close_on_submit = opts.close_on_submit or false
   obj.win_opts = opts.win_opts
+  obj.default_value = opts.default_value
   obj.spinner_chars = {
     "⡀",
     "⠄",
@@ -114,12 +117,19 @@ function PromptInput:open()
   api.nvim_set_option_value("cursorline", true, { win = winid })
   api.nvim_set_option_value("modifiable", true, { buf = bufnr })
 
+  local default_value_lines = {}
+  if self.default_value then default_value_lines = vim.split(self.default_value, "\n") end
+  if #default_value_lines > 0 then
+    vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, default_value_lines)
+    api.nvim_win_set_cursor(winid, { #default_value_lines, #default_value_lines[#default_value_lines] })
+  end
+
   self:show_shortcuts_hints()
 
   self:setup_keymaps()
   self:setup_autocmds()
 
-  if self.start_insert then vim.cmd([[startinsert]]) end
+  if self.start_insert then vim.cmd([[startinsert!]]) end
 end
 
 function PromptInput:close()