implement backward compatible style handling

Remove diagnostic_style_id and use vis.ui:style_push to obtain one.

1 files changed, 9 insertions, 2 deletions

diff --git a/init.lua b/init.lua
index 63610c7..33a2ca6 100644
--- a/init.lua
+++ b/init.lua
@@ -593,7 +593,14 @@ end
 
 local function lspc_highlight_server_diagnostics(win, server_diagnostics, style)
   if not style then
-    style = lspc.diagnostic_style_id or win.STYLE_LEXER_MAX
+    if not lspc.diagnostic_style_id then
+      if vis.API and vis.API > 3215 then
+        lspc.diagnostic_style_id = vis.ui:style_push()
+      else
+        lspc.diagnostic_style_id = win.STYLE_LEXER_MAX
+      end
+    end
+    style = lspc.diagnostic_style_id
   end
 
   local level_mapping = {
@@ -605,7 +612,7 @@ local function lspc_highlight_server_diagnostics(win, server_diagnostics, style)
 
   for _, diagnostic in ipairs(server_diagnostics) do
     local diagnostic_style = level_mapping[diagnostic.severity] or level_mapping[1]
-    assert(win:style_define(style, diagnostic_style))
+    assert(util.style_define(style, diagnostic_style))
 
     if lspc.highlight_diagnostics == 'range' then
       local range = diagnostic.vis_range