ui: Implement set_{title,icon}

src/nvim/msgpack_rpc/remote_ui.c

@@ -98,6 +98,8 @@ static Object remote_ui_attach(uint64_t channel_id, uint64_t request_id,
   ui->update_bg = remote_ui_update_bg;
   ui->flush = remote_ui_flush;
   ui->suspend = remote_ui_suspend;
+  ui->set_title = remote_ui_set_title;
+  ui->set_icon = remote_ui_set_icon;
   pmap_put(uint64_t)(connected_uis, channel_id, ui);
   ui_attach(ui);
   return NIL;
@@ -325,3 +327,17 @@ static void remote_ui_suspend(UI *ui)
   Array args = ARRAY_DICT_INIT;
   push_call(ui, "suspend", args);
 }
+
+static void remote_ui_set_title(UI *ui, char *title)
+{
+  Array args = ARRAY_DICT_INIT;
+  ADD(args, STRING_OBJ(cstr_to_string(title)));
+  push_call(ui, "set_title", args);
+}
+
+static void remote_ui_set_icon(UI *ui, char *icon)
+{
+  Array args = ARRAY_DICT_INIT;
+  ADD(args, STRING_OBJ(cstr_to_string(icon)));
+  push_call(ui, "set_icon", args);
+}

src/nvim/os_unix.c

@@ -43,6 +43,7 @@
 #include "nvim/syntax.h"
 #include "nvim/tempfile.h"
 #include "nvim/term.h"
+#include "nvim/ui.h"
 #include "nvim/types.h"
 #include "nvim/os/os.h"
 #include "nvim/os/time.h"
@@ -181,22 +182,26 @@ void mch_settitle(char_u *title, char_u *icon)
    * Note: if "t_ts" is set, title is set with escape sequence rather
    *	     than x11 calls, because the x11 calls don't always work
    */
-  if ((type || *T_TS != NUL) && title != NULL) {
+  if ((type || *T_TS != NUL || abstract_ui) && title != NULL) {
     if (oldtitle == NULL
         )                       /* first call but not in GUI, save title */
       (void)get_x11_title(FALSE);
 
-    if (*T_TS != NUL)                   /* it's OK if t_fs is empty */
+    if (abstract_ui) {
+      ui_set_title((char *)title);
+    } else if (*T_TS != NUL)                   /* it's OK if t_fs is empty */
       term_settitle(title);
     did_set_title = TRUE;
   }
 
-  if ((type || *T_CIS != NUL) && icon != NULL) {
+  if ((type || *T_CIS != NUL || abstract_ui) && icon != NULL) {
     if (oldicon == NULL
         )                       /* first call, save icon */
       get_x11_icon(FALSE);
 
-    if (*T_CIS != NUL) {
+    if (abstract_ui) {
+      ui_set_icon((char *)icon);
+    } else if (*T_CIS != NUL) {
       out_str(T_CIS);                           /* set icon start */
       out_str_nf(icon);
       out_str(T_CIE);                           /* set icon end */

src/nvim/ui.c

@@ -139,6 +139,18 @@ void ui_suspend(void)
   }
 }
 
+void ui_set_title(char *title)
+{
+  UI_CALL(set_title, title);
+  UI_CALL(flush);
+}
+
+void ui_set_icon(char *icon)
+{
+  UI_CALL(set_icon, icon);
+  UI_CALL(flush);
+}
+
 /*
  * Try to get the current Vim shell size.  Put the result in Rows and Columns.
  * Use the new sizes as defaults for 'columns' and 'lines'.

src/nvim/ui.h

@@ -36,6 +36,8 @@ struct ui_t {
   void (*update_fg)(UI *ui, int fg);
   void (*update_bg)(UI *ui, int bg);
   void (*suspend)(UI *ui);
+  void (*set_title)(UI *ui, char *title);
+  void (*set_icon)(UI *ui, char *icon);
 };
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS

test/functional/ui/screen.lua

@@ -115,6 +115,8 @@ function Screen.new(width, height)
     _bell = false,
     _visual_bell = false,
     _suspended = true,
+    _title = nil,
+    _icon = nil,
     _attrs = {},
     _cursor = {
       enabled = true, row = 1, col = 1
@@ -306,6 +308,14 @@ function Screen:_handle_suspend()
   self._suspended = true
 end
 
+function Screen:_handle_set_title(title)
+  self._title = title
+end
+
+function Screen:_handle_set_icon(icon)
+  self._icon = icon
+end
+
 function Screen:_clear_block(top, lines, left, columns)
   for i = top, top + lines - 1 do
     self:_clear_row_section(i, left, left + columns - 1)