feat: provide right header

Closes #14

README.md

@@ -33,7 +33,7 @@ There are a number of custom options that can be supplied in a table as the thir
 - `timeout`: Number of milliseconds to show the window (default 5000)
 - `on_open`: A function to call with the window ID as an argument after opening
 - `on_close`: A function to call with the window ID as an argument after closing
-- `title`: Title string for the header
+- `title`: Title string or tuple of strings for the header. If tuple, the right header is set to the second element.
 - `icon`: Icon to use for the header
 - `keep`: Function that returns whether or not to keep the window open instead of using a timeout
 

lua/notify/service/buffer/init.lua

@@ -72,15 +72,15 @@ function NotificationBuf:render()
 
   api.nvim_buf_set_option(buf, "modifiable", true)
 
-  local right_title = vim.fn.strftime("%H:%M", notif.time)
   local left_icon = notif.icon .. " "
   local max_width = math.max(
     math.max(unpack(vim.tbl_map(function(line)
       return vim.fn.strchars(line)
     end, notif.message))),
     50
   )
-  local left_title = (notif.title or "") .. string.rep(" ", max_width)
+  local left_title = notif.title[1] .. string.rep(" ", max_width)
+  local right_title = notif.title[2]
   api.nvim_buf_set_lines(buf, 0, 1, false, { "", "" })
   api.nvim_buf_set_extmark(buf, namespace, 0, 0, {
     virt_text = {

lua/notify/service/notification.lua

@@ -4,7 +4,7 @@ local config = require("notify.config")
 ---@field level string
 ---@field message string
 ---@field timeout number | nil
----@field title string
+---@field title string[]
 ---@field icon string
 ---@field time number
 ---@field width number
@@ -21,11 +21,16 @@ function Notification:new(message, level, opts)
     message = vim.split(message, "\n")
   end
   level = vim.fn.toupper(level or "info")
+  local time = vim.fn.localtime()
+  local title = opts.title or ""
+  if type(title) == "string" then
+    title = { title, vim.fn.strftime("%H:%M", time) }
+  end
   local notif = {
     message = message,
-    title = opts.title or "",
+    title = title,
     icon = opts.icon or config.icons()[level] or config.icons().INFO,
-    time = vim.fn.localtime(),
+    time = time,
     timeout = opts.timeout,
     level = level,
     keep = opts.keep,