feat: added custom handlers for markdown links and help tags

lua/noice/text/markdown.lua

@@ -40,4 +40,44 @@ function M.format(message, text)
   end
 end
 
+function M.keys(buf)
+  if vim.b[buf].markdown_keys then
+    return
+  end
+
+  local function map(lhs)
+    vim.keymap.set("n", lhs, function()
+      local line = vim.api.nvim_get_current_line()
+      local pos = vim.api.nvim_win_get_cursor(0)
+      local col = pos[2] + 1
+
+      for pattern, handler in pairs(require("noice.config").options.markdown.hover) do
+        local from = 1
+        local to, url
+        while from do
+          from, to, url = line:find(pattern, from)
+          if from and col >= from and col <= to then
+            return handler(url)
+          end
+        end
+      end
+      vim.api.nvim_feedkeys(lhs, "n", false)
+    end, { buffer = buf, silent = true })
+  end
+
+  map("gx")
+  map("K")
+
+  vim.b[buf].markdown_keys = true
+end
+
+---@param message NoiceMessage
+function M.horizontal_line(message)
+  message:append(NoiceText("", {
+    virt_text_win_col = 0,
+    virt_text = { { string.rep("─", vim.go.columns), "@punctuation.special.markdown" } },
+    priority = 100,
+  }))
+end
+
 return M

lua/noice/util/init.lua

@@ -21,6 +21,27 @@ function M.once(fn)
   end
 end
 
+function M.open(uri)
+  local cmd
+  if vim.fn.has("win32") == 1 then
+    cmd = { "cmd.exe", "/c", "start", '""', vim.fn.shellescape(uri) }
+  elseif vim.fn.has("macunix") == 1 then
+    cmd = { "open", uri }
+  else
+    cmd = { "xdg-open", uri }
+  end
+
+  local ret = vim.fn.system(cmd)
+  if vim.v.shell_error ~= 0 then
+    local msg = {
+      "Failed to open uri",
+      ret,
+      vim.inspect(cmd),
+    }
+    vim.notify(table.concat(msg, "\n"), vim.log.levels.ERROR)
+  end
+end
+
 function M.tag(buf, tag)
   local ft = vim.api.nvim_buf_get_option(buf, "filetype")
 

lua/noice/view/init.lua

@@ -5,6 +5,7 @@ local ConfigViews = require("noice.config.views")
 local Util = require("noice.util")
 local Object = require("nui.object")
 local Format = require("noice.text.format")
+local Markdown = require("noice.text.markdown")
 
 ---@class NoiceViewBaseOptions
 ---@field buf_options? table<string,any>
@@ -208,6 +209,10 @@ function View:render(buf, opts)
     require("nui.utils")._.set_buf_options(buf, self._opts.buf_options)
   end
 
+  if self._opts.lang == "markdown" then
+    Markdown.keys(buf)
+  end
+
   if self._opts.lang and not vim.b[buf].ts_highlight then
     if not pcall(vim.treesitter.start, buf, self._opts.lang) then
       vim.bo[buf].syntax = self._opts.lang