From bdd33e84249224227514d537b44c1e8e16e82188 Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Sun, 23 Jan 2022 11:57:53 -0500
Subject: [PATCH] [termdesc] identify Konsole by TDA of ~KDE #2556

---
 src/lib/in.c       |  6 ++++--
 src/lib/in.h       |  1 +
 src/lib/termdesc.c | 12 +++++++++++-
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/src/lib/in.c b/src/lib/in.c
index d85d65e82..da75960af 100644
--- a/src/lib/in.c
+++ b/src/lib/in.c
@@ -1300,7 +1300,7 @@ da2_cb(inputctx* ictx){
 
 // weird form of Ternary Device Attributes used only by WezTerm
 static int
-da3_cb(inputctx* ictx){
+wezterm_tda_cb(inputctx* ictx){
   if(ictx->initdata){
     loginfo("read ternary device attributes");
   }
@@ -1666,6 +1666,8 @@ tda_cb(inputctx* ictx){
       ictx->initdata->qterm = TERMINAL_TERMINOLOGY;
     }else if(strcmp(str, "464F4F54") == 0){ // "FOOT"
       ictx->initdata->qterm = TERMINAL_FOOT;
+    }else if(strcmp(str, "7E4B4445") == 0){
+      ictx->initdata->qterm = TERMINAL_KONSOLE;
     }
     loginfo("got TDA: %s, terminal type %d", str, ictx->initdata->qterm);
   }
@@ -1745,7 +1747,7 @@ build_cflow_automaton(inputctx* ictx){
     { "[?2;0;\\N;\\NS", xtsmgraphics_sixel_cb, },
     { "[>83;\\N;0c", da2_screen_cb, },
     { "[>\\N;\\N;\\Nc", da2_cb, },
-    { "[=\\Sc", da3_cb, }, // CSI da3 form as issued by WezTerm
+    { "[=\\Sc", wezterm_tda_cb, }, // CSI da3 form as issued by WezTerm
     // DCS (\eP...ST)
     { "P0+\\S", NULL, }, // negative XTGETTCAP
     { "P1+r\\S", tcap_cb, }, // positive XTGETTCAP
diff --git a/src/lib/in.h b/src/lib/in.h
index 9620e5af7..1bc38d17b 100644
--- a/src/lib/in.h
+++ b/src/lib/in.h
@@ -51,6 +51,7 @@ typedef enum {
     TERMINAL_RXVT,          // rxvt/urxvt, determined by TERM + UNIX
     TERMINAL_MSTERMINAL,    // Microsoft Windows Terminal
     TERMINAL_MINTTY,        // XTVERSION == 'mintty ver' MinTTY (Cygwin, MSYS2)
+    TERMINAL_KONSOLE,       // TDA: "~KDE" (7e4b4445)
 } queried_terminals_e;
 
 // after spawning the input layer, send initial queries to the terminal. its
diff --git a/src/lib/termdesc.c b/src/lib/termdesc.c
index fcebdd9c0..68dfd3a46 100644
--- a/src/lib/termdesc.c
+++ b/src/lib/termdesc.c
@@ -848,11 +848,18 @@ apply_rxvt_heuristics(tinfo* ti){
 
 static const char*
 apply_terminology_heuristics(tinfo* ti){
-  ti->caps.rgb = false; // as of at least 1.9.0
+  // no RGB as of at least 1.9.0
   ti->caps.quadrants = true;
   return "Terminology";
 }
 
+static const char*
+apply_konsole_heuristics(tinfo* ti){
+  ti->caps.rgb = true;
+  ti->caps.quadrants = true;
+  return "Konsole";
+}
+
 static const char*
 apply_linux_heuristics(tinfo* ti, unsigned nonewfonts){
   const char* tname = NULL;
@@ -958,6 +965,9 @@ apply_term_heuristics(tinfo* ti, const char* tname, queried_terminals_e qterm,
     case TERMINAL_TERMINOLOGY:
       newname = apply_terminology_heuristics(ti);
       break;
+    case TERMINAL_KONSOLE:
+      newname = apply_konsole_heuristics(ti);
+      break;
     default:
       newname = tname;
       break;