config: add [key-bindings].noop action

Key combinations assigned to this action will not be sent to the
application.

Closes #765

CHANGELOG.md

@@ -38,8 +38,11 @@
 * `notify-focus-inhibit` boolean option, which can be used to control
   whether desktop notifications should be inhibited when the terminal
   has keyboard focus
-* `colors.scrollback-indicator` color-pair option, which specifies
+* `[colors].scrollback-indicator` color-pair option, which specifies
   foreground and background colors for the scrollback indicator.
+* `[key-bindings].noop` action. Key combinations assigned to this
+  action will not be sent to the application
+  (https://codeberg.org/dnkl/foot/issues/765).
 
 
 ### Changed

config.c

@@ -84,6 +84,7 @@ static const uint32_t default_color_table[256] = {
 
 static const char *const binding_action_map[] = {
     [BIND_ACTION_NONE] = NULL,
+    [BIND_ACTION_NOOP] = "noop",
     [BIND_ACTION_SCROLLBACK_UP_PAGE] = "scrollback-up-page",
     [BIND_ACTION_SCROLLBACK_UP_HALF_PAGE] = "scrollback-up-half-page",
     [BIND_ACTION_SCROLLBACK_UP_LINE] = "scrollback-up-line",

doc/foot.ini.5.scd

@@ -606,24 +606,28 @@ default shortcut for *search-start*, you first need to unmap the
 default binding. This can be done by setting _action=none_;
 e.g. *search-start=none*.
 
+*noop*
+	All key combinations listed here will not be sent to the
+	application. Default: _not bound_.
+
 *scrollback-up-page*
 	Scrolls up/back one page in history. Default: _Shift+Page\_Up_.
 
 *scrollback-up-half-page*
-	Scrolls up/back half of a page in history. Default: _not set_.
+	Scrolls up/back half of a page in history. Default: _not bound_.
 
 *scrollback-up-line*
-	Scrolls up/back a single line in history. Default: _not set_.
+	Scrolls up/back a single line in history. Default: _not bound_.
 
 *scrollback-down-page*
 	Scroll down/forward one page in history. Default:
 	_Shift+Page\_Down_.
 
 *scrollback-down-half-page*
-	Scroll down/forward half of a page in history. Default: _not set_.
+	Scroll down/forward half of a page in history. Default: _not bound_.
 
 *scrollback-down-line*
-	Scroll down/forward a single line in history. Default: _not set_.
+	Scroll down/forward a single line in history. Default: _not bound_.
 
 *clipboard-copy*
 	Copies the current selection into the _clipboard_. Default: _Control+Shift+c_.

foot.ini

@@ -127,6 +127,7 @@
 # pipe-selected=[xargs -r firefox] none
 # show-urls-launch=Control+Shift+u
 # show-urls-copy=none
+# noop=none
 
 [search-bindings]
 # cancel=Control+g Control+c Escape

input.c

@@ -87,6 +87,9 @@ execute_binding(struct seat *seat, struct terminal *term,
     case BIND_ACTION_NONE:
         return true;
 
+    case BIND_ACTION_NOOP:
+        return true;
+
     case BIND_ACTION_SCROLLBACK_UP_PAGE:
         if (term->grid == &term->normal) {
             cmd_scrollback_up(term, term->rows);

wayland.h

@@ -30,6 +30,7 @@ struct terminal;
 
 enum bind_action_normal {
     BIND_ACTION_NONE,
+    BIND_ACTION_NOOP,
     BIND_ACTION_SCROLLBACK_UP_PAGE,
     BIND_ACTION_SCROLLBACK_UP_HALF_PAGE,
     BIND_ACTION_SCROLLBACK_UP_LINE,