feat: added methods that can be mapped for scrolling the hover/signatureHelp windows

Author: folke

lua/noice/source/lsp/init.lua

@@ -51,6 +51,17 @@ function M.setup()
   end
 end
 
+function M.scroll(delta)
+  for _, kind in ipairs({ M.kinds.hover, M.kinds.signature }) do
+    local message = M.get(kind)
+    local win = message:win()
+    if win then
+      Util.nui.scroll(win, delta)
+      return
+    end
+  end
+end
+
 ---@param message NoiceMessage
 function M.augroup(message)
   return "noice_lsp_" .. message.id

lua/noice/util/nui.lua

@@ -235,4 +235,20 @@ function M.anchor(width, height)
   return anchor
 end
 
+function M.scroll(win, delta)
+  local info = vim.fn.getwininfo(win)[1] or {}
+  local top = info.topline or 1
+  local buf = vim.api.nvim_win_get_buf(win)
+  top = top + delta
+  top = math.max(top, 1)
+  top = math.min(top, M.win_buf_height(win) - info.height + 1)
+
+  vim.defer_fn(function()
+    vim.api.nvim_buf_call(buf, function()
+      vim.api.nvim_command("normal! " .. top .. "zt")
+      vim.cmd([[do WinScrolled]])
+    end)
+  end, 0)
+end
+
 return M

lua/noice/view/nui.lua

@@ -39,6 +39,8 @@ function NuiView:update_options()
     },
     win_options = {
       foldenable = false,
+      scrolloff = 0,
+      sidescrolloff = 0,
     },
   }, self._opts, self:get_layout())