feat: allow to always render search highlight to prevent flickering w…

…hen updating ui

lua/flash/commands.lua

@@ -13,7 +13,6 @@ function M.jump(opts)
   local state = State.new({ config = opts })
 
   while true do
-    vim.cmd.redraw()
     local ok, n = pcall(vim.fn.getchar)
     if not ok then
       break

lua/flash/config.lua

@@ -27,9 +27,14 @@ local defaults = {
     -- to search with regular expressions
     abort_pattern = "[^a-zA-Z0-9_.()]",
     -- limit matches in a certain direction
-    direction = nil, ---@type "forward" | "backward" | nil
+    direction = "both", ---@type "forward" | "backward" | "both"
   },
   ui = {
+    -- When using flash during search, flash will additionally
+    -- highlight the matches the same way as the search highlight.
+    -- This is useful to prevent flickring during search.
+    -- Especially with plugins like noice.nvim.
+    always_highlight_search = true,
     backdrop = true,
     priority = 500,
   },

lua/flash/highlight.lua

@@ -53,7 +53,7 @@ function M.update(state)
   for _, match in ipairs(state.results) do
     local buf = vim.api.nvim_win_get_buf(match.win)
 
-    if not state.is_search() then
+    if not state.is_search() or state.config.ui.always_highlight_search then
       vim.api.nvim_buf_set_extmark(buf, M.ns, match.from[1] - 1, match.from[2], {
         end_row = match.to[1] - 1,
         end_col = match.to[2] + 1,