From de93359a5af1378358d704940f0b3861a025b1a7 Mon Sep 17 00:00:00 2001
From: Kalle Olavi Niemitalo <kon@iki.fi>
Date: Sun, 13 Aug 2006 15:32:06 +0300
Subject: [PATCH] Support Ctrl-Alt-letter key combinations.

Actions can now be bound to e.g. Ctrl-Alt-A.  The keybinding code also
supports other combinations of modifiers, like Shift-Ctrl-Up, but the
escape sequence decoder doesn't yet.

Don't let Ctrl-Alt-letter combinations open menus.
---
 src/config/dialogs.c   |  3 +--
 src/config/kbdbind.c   | 39 +++++++++++++++++++++------------------
 src/terminal/kbd.c     |  2 +-
 src/viewer/text/view.c |  3 ++-
 4 files changed, 25 insertions(+), 22 deletions(-)

diff --git a/src/config/dialogs.c b/src/config/dialogs.c
index 46b37b6e..3dca10e3 100644
--- a/src/config/dialogs.c
+++ b/src/config/dialogs.c
@@ -911,8 +911,7 @@ push_kbdbind_add_button(struct dialog_data *dlg_data,
 			   "Keymap: %s\n"
 			   "\n"
 			   "Keystroke should be written in the format: "
-			   "[Prefix-]Key\n"
-			   "Prefix: Shift, Ctrl, Alt\n"
+			   "[Shift-][Ctrl-][Alt-]Key\n"
 			   "Key: a,b,c,...,1,2,3,...,Space,Up,PageDown,"
 			   "Tab,Enter,Insert,F5,..."
 			   "\n\n"
diff --git a/src/config/kbdbind.c b/src/config/kbdbind.c
index 1fd78341..c630c12c 100644
--- a/src/config/kbdbind.c
+++ b/src/config/kbdbind.c
@@ -374,24 +374,27 @@ parse_keystroke(const unsigned char *s, struct term_event_keyboard *kbd)
 {
 	unsigned char ctrlbuf[2];
 
-	if (!strncasecmp(s, "Shift", 5) && (s[5] == '-' || s[5] == '+')) {
-		/* Shift+a == shiFt-a == Shift-a */
-		kbd->modifier = KBD_MOD_SHIFT;
-		s += 6;
-
-	} else if (!strncasecmp(s, "Ctrl", 4) && (s[4] == '-' || s[4] == '+')) {
-		/* Ctrl+a == ctRl-a == Ctrl-a */
-		kbd->modifier = KBD_MOD_CTRL;
-		s += 5;
-
-	} else if (!strncasecmp(s, "Alt", 3) && (s[3] == '-' || s[3] == '+')) {
-		/* Alt+a == aLt-a == Alt-a */
-		kbd->modifier = KBD_MOD_ALT;
-		s += 4;
-
-	} else {
-		/* No modifier. */
-		kbd->modifier = KBD_MOD_NONE;
+	kbd->modifier = KBD_MOD_NONE;
+	while (1) {
+		if (!strncasecmp(s, "Shift", 5) && (s[5] == '-' || s[5] == '+')) {
+			/* Shift+a == shiFt-a == Shift-a */
+			kbd->modifier |= KBD_MOD_SHIFT;
+			s += 6;
+
+		} else if (!strncasecmp(s, "Ctrl", 4) && (s[4] == '-' || s[4] == '+')) {
+			/* Ctrl+a == ctRl-a == Ctrl-a */
+			kbd->modifier |= KBD_MOD_CTRL;
+			s += 5;
+
+		} else if (!strncasecmp(s, "Alt", 3) && (s[3] == '-' || s[3] == '+')) {
+			/* Alt+a == aLt-a == Alt-a */
+			kbd->modifier |= KBD_MOD_ALT;
+			s += 4;
+
+		} else {
+			/* No modifier. */
+			break;
+		}
 	}
 
 	if ((kbd->modifier & KBD_MOD_CTRL) != 0 && s[0] && !s[1]) {
diff --git a/src/terminal/kbd.c b/src/terminal/kbd.c
index 229cf4de..07fd3056 100644
--- a/src/terminal/kbd.c
+++ b/src/terminal/kbd.c
@@ -865,7 +865,7 @@ set_kbd_event(struct interlink_event *ev, int key, int modifier)
 	default:
 		if (key < ' ') {
 			key += 'A' - 1;
-			modifier = KBD_MOD_CTRL;
+			modifier |= KBD_MOD_CTRL;
 		}
 	}
 
diff --git a/src/viewer/text/view.c b/src/viewer/text/view.c
index 14a28783..d383d16e 100644
--- a/src/viewer/text/view.c
+++ b/src/viewer/text/view.c
@@ -1169,7 +1169,8 @@ quit:
 
 	if (check_kbd_key(ev, KBD_CTRL_C)) goto quit;
 
-	if (get_kbd_modifier(ev) & KBD_MOD_ALT) {
+	/* Ctrl-Alt-F should not open the File menu like Alt-f does.  */
+	if (check_kbd_modifier(ev, KBD_MOD_ALT)) {
 		struct window *win;
 
 		get_kbd_modifier(ev) &= ~KBD_MOD_ALT;
-- 
2.11.4.GIT