autocmd: add MenuPopupChanged autocmd

Update src/nvim/auevents.lua

Co-Authored-By: chemzqm <chemzqm@gmail.com>

4 files changed, 51 insertions, 11 deletions

diff --git a/src/nvim/auevents.lua b/src/nvim/auevents.lua
index cc0ed0f587..345bf67c0e 100644
--- a/src/nvim/auevents.lua
+++ b/src/nvim/auevents.lua
@@ -66,6 +66,7 @@ return {
     'InsertLeave',            -- when leaving Insert mode
     'JobActivity',            -- when job sent some data
     'MenuPopup',              -- just before popup menu is displayed
+    'MenuPopupChanged',       -- after popup menu changed
     'OptionSet',              -- after setting any option
     'QuickFixCmdPost',        -- after :make, :grep etc.
     'QuickFixCmdPre',         -- before :make, :grep etc.
diff --git a/src/nvim/edit.c b/src/nvim/edit.c
index 6b31406b0c..6f0468dbea 100644
--- a/src/nvim/edit.c
+++ b/src/nvim/edit.c
@@ -2658,6 +2658,23 @@ void ins_compl_show_pum(void)
   pum_selected_item = cur;
   pum_display(compl_match_array, compl_match_arraysize, cur, array_changed);
   curwin->w_cursor.col = col;
+
+  if (!has_event(EVENT_MENUPOPUPCHANGED)) {
+    return;
+  }
+  dict_T *dict = get_vim_var_dict(VV_EVENT);
+  if (cur < 0) {
+    tv_dict_add_dict(dict, S_LEN("completed_item"), tv_dict_alloc());
+  } else {
+    dict_T *item = ins_compl_dict_alloc(compl_curr_match);
+    tv_dict_add_dict(dict, S_LEN("completed_item"), item);
+  }
+  pum_set_boundings(dict);
+  tv_dict_set_keys_readonly(dict);
+  textlock++;
+  apply_autocmds(EVENT_MENUPOPUPCHANGED, NULL, NULL, false, curbuf);
+  textlock--;
+  tv_dict_clear(dict);
 }
 
 #define DICT_FIRST      (1)     /* use just first element in "dict" */
@@ -4096,31 +4113,37 @@ static void ins_compl_insert(int in_compl_func)
   else
     compl_used_match = TRUE;
 
-  // Set completed item.
+  dict_T *dict = ins_compl_dict_alloc(compl_shown_match);
+  set_vim_var_dict(VV_COMPLETED_ITEM, dict);
+  if (!in_compl_func) {
+    compl_curr_match = compl_shown_match;
+  }
+}
+
+// Convert to complete item dict
+static dict_T *ins_compl_dict_alloc(compl_T *match)
+{
   // { word, abbr, menu, kind, info }
   dict_T *dict = tv_dict_alloc();
   tv_dict_add_str(
       dict, S_LEN("word"),
-      (const char *)EMPTY_IF_NULL(compl_shown_match->cp_str));
+      (const char *)EMPTY_IF_NULL(match->cp_str));
   tv_dict_add_str(
       dict, S_LEN("abbr"),
-      (const char *)EMPTY_IF_NULL(compl_shown_match->cp_text[CPT_ABBR]));
+      (const char *)EMPTY_IF_NULL(match->cp_text[CPT_ABBR]));
   tv_dict_add_str(
       dict, S_LEN("menu"),
-      (const char *)EMPTY_IF_NULL(compl_shown_match->cp_text[CPT_MENU]));
+      (const char *)EMPTY_IF_NULL(match->cp_text[CPT_MENU]));
   tv_dict_add_str(
       dict, S_LEN("kind"),
-      (const char *)EMPTY_IF_NULL(compl_shown_match->cp_text[CPT_KIND]));
+      (const char *)EMPTY_IF_NULL(match->cp_text[CPT_KIND]));
   tv_dict_add_str(
       dict, S_LEN("info"),
-      (const char *)EMPTY_IF_NULL(compl_shown_match->cp_text[CPT_INFO]));
+      (const char *)EMPTY_IF_NULL(match->cp_text[CPT_INFO]));
   tv_dict_add_str(
       dict, S_LEN("user_data"),
-      (const char *)EMPTY_IF_NULL(compl_shown_match->cp_text[CPT_USER_DATA]));
-  set_vim_var_dict(VV_COMPLETED_ITEM, dict);
-  if (!in_compl_func) {
-    compl_curr_match = compl_shown_match;
-  }
+      (const char *)EMPTY_IF_NULL(match->cp_text[CPT_USER_DATA]));
+  return dict;
 }
 
 /*
diff --git a/src/nvim/popupmnu.c b/src/nvim/popupmnu.c
index 499ee11cad..e9b3f04454 100644
--- a/src/nvim/popupmnu.c
+++ b/src/nvim/popupmnu.c
@@ -12,6 +12,7 @@
 #include "nvim/vim.h"
 #include "nvim/api/private/helpers.h"
 #include "nvim/ascii.h"
+#include "nvim/eval/typval.h"
 #include "nvim/popupmnu.h"
 #include "nvim/charset.h"
 #include "nvim/ex_cmds.h"
@@ -841,3 +842,17 @@ int pum_get_height(void)
 {
   return pum_height;
 }
+
+void pum_set_boundings(dict_T *dict)
+{
+  if (!pum_visible()) {
+    return;
+  }
+  tv_dict_add_nr(dict, S_LEN("height"), pum_height);
+  tv_dict_add_nr(dict, S_LEN("width"), pum_width);
+  tv_dict_add_nr(dict, S_LEN("row"), pum_row);
+  tv_dict_add_nr(dict, S_LEN("col"), pum_col);
+  tv_dict_add_nr(dict, S_LEN("size"), pum_size);
+  tv_dict_add_special(dict, S_LEN("scrollbar"),
+                      pum_scrollbar ? kSpecialVarTrue : kSpecialVarFalse);
+}
diff --git a/src/nvim/popupmnu.h b/src/nvim/popupmnu.h
index 42e6ef5653..7956e50a93 100644
--- a/src/nvim/popupmnu.h
+++ b/src/nvim/popupmnu.h
@@ -1,6 +1,7 @@
 #ifndef NVIM_POPUPMNU_H
 #define NVIM_POPUPMNU_H
 
+#include "nvim/vim.h"
 #include "nvim/macros.h"
 #include "nvim/grid_defs.h"
 #include "nvim/types.h"