patch 8.2.2345: no focus events in a terminal
Problem: No focus events in a terminal.
Solution: Add the t_fd and t_fe termcap entries and implement detecting
focus events. (Hayaki Saito, Magnus Groß, closes #7673,
closes #609, closes #5526)
diff --git a/src/term.c b/src/term.c
index 9e9a67b..bf33a1c 100644
--- a/src/term.c
+++ b/src/term.c
@@ -196,6 +196,11 @@
static int detected_8bit = FALSE; // detected 8-bit terminal
+#if (defined(UNIX) || defined(VMS))
+static int focus_mode = FALSE; // xterm's "focus reporting" availability
+static int focus_state = FALSE; // TRUE if the terminal window gains focus
+#endif
+
#ifdef FEAT_TERMRESPONSE
// When the cursor shape was detected these values are used:
// 1: block, 2: underline, 3: vertical bar
@@ -908,6 +913,10 @@
{(int)KS_CRT, IF_EB("\033[23;2t", ESC_STR "[23;2t")},
{(int)KS_SSI, IF_EB("\033[22;1t", ESC_STR "[22;1t")},
{(int)KS_SRI, IF_EB("\033[23;1t", ESC_STR "[23;1t")},
+# if (defined(UNIX) || defined(VMS))
+ {(int)KS_FD, IF_EB("\033[?1004l", ESC_STR "[?1004l")},
+ {(int)KS_FE, IF_EB("\033[?1004h", ESC_STR "[?1004h")},
+# endif
{K_UP, IF_EB("\033O*A", ESC_STR "O*A")},
{K_DOWN, IF_EB("\033O*B", ESC_STR "O*B")},
@@ -2044,6 +2053,27 @@
set_mouse_termcode(KS_MOUSE, (char_u *)"\233M");
#endif
+#if (defined(UNIX) || defined(VMS))
+ // focus reporting is supported by xterm compatible terminals and tmux.
+ if (use_xterm_like_mouse(term))
+ {
+ char_u name[3];
+ name[0] = (int)KS_EXTRA;
+ name[2] = NUL;
+
+ // handle focus in event
+ name[1] = (int)KE_FOCUSGAINED;
+ add_termcode(name, (char_u *)"\033[I", FALSE);
+
+ // handle focus out event
+ name[1] = (int)KE_FOCUSLOST;
+ add_termcode(name, (char_u *)"\033[O", FALSE);
+
+ focus_mode = TRUE;
+ focus_state = TRUE;
+ }
+#endif
+
#ifdef USE_TERM_CONSOLE
// DEFAULT_TERM indicates that it is the machine console.
if (STRCMP(term, DEFAULT_TERM) != 0)
@@ -2519,7 +2549,10 @@
if (ch_log_output)
{
out_buf[len] = NUL;
- ch_log(NULL, "raw terminal output: \"%s\"", out_buf);
+ ch_log(NULL, "raw %s output: \"%s\"",
+ (gui.in_use && !gui.dying && !gui.starting)
+ ? "GUI" : "terminal",
+ out_buf);
ch_log_output = FALSE;
}
#endif
@@ -3582,6 +3615,13 @@
out_str(T_CTI); // start "raw" mode
out_str(T_KS); // start "keypad transmit" mode
out_str(T_BE); // enable bracketed paste mode
+
+#if (defined(UNIX) || defined(VMS))
+ // enable xterm's focus reporting mode
+ if (focus_mode && *T_FE != NUL)
+ out_str(T_FE);
+#endif
+
out_flush();
termcap_active = TRUE;
screen_start(); // don't know where cursor is now
@@ -3633,6 +3673,13 @@
#ifdef FEAT_JOB_CHANNEL
ch_log_output = TRUE;
#endif
+
+#if (defined(UNIX) || defined(VMS))
+ // disable xterm's focus reporting mode
+ if (focus_mode && *T_FD != NUL)
+ out_str(T_FD);
+#endif
+
out_str(T_BD); // disable bracketed paste mode
out_str(T_KE); // stop "keypad transmit" mode
out_flush();
@@ -5647,6 +5694,45 @@
# endif // !USE_ON_FLY_SCROLL
#endif // FEAT_GUI
+#if (defined(UNIX) || defined(VMS))
+ /*
+ * Handle FocusIn/FocusOut event sequences reported by XTerm.
+ * (CSI I/CSI O)
+ */
+ if (focus_mode
+# ifdef FEAT_GUI
+ && !gui.in_use
+# endif
+ && key_name[0] == KS_EXTRA
+ )
+ {
+ int did_aucmd = FALSE;
+
+ if (key_name[1] == KE_FOCUSGAINED && !focus_state)
+ {
+ did_aucmd = apply_autocmds(EVENT_FOCUSGAINED,
+ NULL, NULL, FALSE, curbuf);
+ did_cursorhold = TRUE;
+ focus_state = TRUE;
+ key_name[1] = (int)KE_IGNORE;
+ }
+ else if (key_name[1] == KE_FOCUSLOST && focus_state)
+ {
+ did_aucmd = apply_autocmds(EVENT_FOCUSLOST,
+ NULL, NULL, FALSE, curbuf);
+ did_cursorhold = TRUE;
+ focus_state = FALSE;
+ key_name[1] = (int)KE_IGNORE;
+ }
+ if (did_aucmd && (State & (NORMAL | INSERT | TERMINAL)))
+ {
+ // in case a message was displayed: reposition the cursor
+ setcursor();
+ out_flush();
+ }
+ }
+#endif
+
/*
* Change <xHome> to <Home>, <xUp> to <Up>, etc.
*/