Merge pull request #1150 from splinterofchaos/vim-patch-7.4.305

Vim patch 7.4.305 + Vim patch 7.4.359

src/nvim/globals.h

@@ -1059,6 +1059,10 @@ EXTERN int typebuf_was_filled INIT(= FALSE);      /* received text from client
 EXTERN int term_is_xterm INIT(= FALSE);         /* xterm-like 'term' */
 #endif
 
+#if defined(UNIX)
+EXTERN int xterm_conflict_mouse INIT(= FALSE);
+#endif
+
 #ifdef BACKSLASH_IN_FILENAME
 EXTERN char psepc INIT(= '\\');         /* normal path separator character */
 EXTERN char psepcN INIT(= '/');         /* abnormal path separator character */

src/nvim/os_unix.c

@@ -761,11 +761,11 @@ void mch_setmouse(int on)
 
 }
 
-/*
- * Set the mouse termcode, depending on the 'term' and 'ttymouse' options.
- */
+/// Sets the mouse termcode, depending on the 'term' and 'ttymouse' options.
 void check_mouse_termcode(void)
 {
+  xterm_conflict_mouse = false;
+
   if (use_xterm_mouse()
       && use_xterm_mouse() != 3
       ) {
@@ -791,29 +791,31 @@ void check_mouse_termcode(void)
   else
     del_mouse_termcode(KS_NETTERM_MOUSE);
 
-  /* conflicts with xterm mouse: "\033[" and "\033[M" */
-  if (!use_xterm_mouse()
-      )
+  // Conflicts with xterm mouse: "\033[" and "\033[M".
+  // Also conflicts with the xterm termresponse, skip this if it was requested
+  // already.
+  if (!use_xterm_mouse()) {
     set_mouse_termcode(KS_DEC_MOUSE, (char_u *)(term_is_8bit(T_NAME)
                                                 ? "\233" : "\033["));
-  else
+    xterm_conflict_mouse = true;
+  }
+  else {
     del_mouse_termcode(KS_DEC_MOUSE);
+  }
   /* same as the dec mouse */
-  if (use_xterm_mouse() == 3
-      ) {
-    set_mouse_termcode(KS_URXVT_MOUSE, (char_u *)(term_is_8bit(T_NAME)
-                                                  ? "\233"
-                                                  : "\033["));
-
+  if (use_xterm_mouse() == 3 && !did_request_esc_sequence()) {
+    set_mouse_termcode(KS_URXVT_MOUSE,
+                       (char_u *)(term_is_8bit(T_NAME) ? "\233" : "\033["));
     if (*p_mouse != NUL) {
-      mch_setmouse(FALSE);
+      mch_setmouse(false);
       setmouse();
     }
-  } else
+    resume_get_esc_sequence();
+  } else {
     del_mouse_termcode(KS_URXVT_MOUSE);
-  /* There is no conflict with xterm mouse */
-  if (use_xterm_mouse() == 4
-      ) {
+  }
+  // There is no conflict with xterm mouse.
+  if (use_xterm_mouse() == 4) {
     set_mouse_termcode(KS_SGR_MOUSE, (char_u *)(term_is_8bit(T_NAME)
                                                 ? "\233<"
                                                 : "\033[<"));
@@ -822,9 +824,10 @@ void check_mouse_termcode(void)
       mch_setmouse(FALSE);
       setmouse();
     }
-  } else
+  } else {
     del_mouse_termcode(KS_SGR_MOUSE);
   }
+}
 
 /*
  * Try to get the current window size:

src/nvim/term.c

@@ -152,6 +152,9 @@ char *UP, *BC, PC;
 # define TGETENT(b, t)  tgetent((char *)(b), (char *)(t))
 #endif /* HAVE_TGETENT */
 
+static int xt_index_in = 0;
+static int xt_index_out = 0;
+
 static bool detected_8bit = false;       // detected 8-bit terminal
 
 static struct builtin_term builtin_termcaps[] =
@@ -2408,11 +2411,12 @@ void starttermcap(void)
       may_req_termresponse();
       /* Immediately check for a response.  If t_Co changes, we don't
        * want to redraw with wrong colors first. */
-      if (crv_status != CRV_GET)
+      if (crv_status == CRV_SENT) {
         check_for_codes_from_term();
       }
     }
   }
+}
 
 void stoptermcap(void)
 {
@@ -2446,6 +2450,38 @@ void stoptermcap(void)
   }
 }
 
+#if defined(UNIX)
+/// Returns true when the xterm version was requested or anything else that
+/// would send an ESC sequence back to Vim.
+///
+/// If not sent yet, prevent it from being sent soon.
+/// Used to check whether it is OK to enable checking for DEC mouse codes,
+/// which conflict with may xterm ESC sequences.
+bool did_request_esc_sequence(void)
+{
+  if (crv_status == CRV_GET) {
+    crv_status = 0;
+  }
+  if (u7_status == U7_GET) {
+    u7_status = 0;
+  }
+  return crv_status == CRV_SENT || u7_status == U7_SENT
+    || xt_index_out > xt_index_in;
+}
+
+/// If requesting the version was disabled in did_request_esc_sequence(),
+/// enable it again.
+void resume_get_esc_sequence(void)
+{
+  if (crv_status == 0) {
+    crv_status = CRV_GET;
+  }
+  if (u7_status == 0) {
+    u7_status = U7_GET;
+  }
+}
+#endif
+
 /*
  * Request version string (for xterm) when needed.
  * Only do this after switching to raw mode, otherwise the result will be
@@ -2458,6 +2494,8 @@ void stoptermcap(void)
  * Insert mode.
  * On Unix only do it when both output and input are a tty (avoid writing
  * request to terminal while reading from a file).
+ * Do not do this when a mouse is being detected that starts with the same ESC
+ * sequence as the termresponse.
  * The result is caught in check_termcode().
  */
 void may_req_termresponse(void)
@@ -2470,6 +2508,7 @@ void may_req_termresponse(void)
 # ifdef UNIX
       && isatty(1)
       && isatty(read_cmd_fd)
+      && !xterm_conflict_mouse
 # endif
       && *T_CRV != NUL) {
     LOG_TR("Sending CRV");
@@ -4130,9 +4169,6 @@ int show_one_termcode(char_u *name, char_u *code, int printit)
  * termcap codes from the terminal itself.
  * We get them one by one to avoid a very long response string.
  */
-static int xt_index_in = 0;
-static int xt_index_out = 0;
-
 static void req_codes_from_term(void)
 {
   xt_index_out = 0;

src/nvim/version.c

@@ -236,7 +236,7 @@ static int included_patches[] = {
   362,
   361,
   //360,
-  //359,
+  359,
   358,
   357,
   //356 NA
@@ -290,7 +290,7 @@ static int included_patches[] = {
   308,
   //307 NA
   306,
-  //305,
+  305,
   //304 NA
   303,
   302,