Allow to supend the editor via CTRL-Z

2 files changed, 9 insertions, 0 deletions

diff --git a/config.def.h b/config.def.h
index ab44ddd..cc2a076 100644
--- a/config.def.h
+++ b/config.def.h
@@ -93,6 +93,7 @@ static bool vis_keypress(Key *key) {
 }
 
 static KeyBinding basic_movement[] = {
+	{ { CONTROL('Z')            }, suspend,  { NULL                          } },
 	{ { KEY(LEFT)               }, movement, { .i = MOVE_CHAR_PREV           } },
 	{ { KEY(SLEFT)              }, movement, { .i = MOVE_LONGWORD_START_PREV } },
 	{ { KEY(RIGHT)              }, movement, { .i = MOVE_CHAR_NEXT           } },
diff --git a/vis.c b/vis.c
index e6c670e..7b93eae 100644
--- a/vis.c
+++ b/vis.c
@@ -372,6 +372,8 @@ static TextObject *moves_linewise[] = {
 };
 
 /** functions to be called from keybindings */
+/* temporarily suspend the editor and return to the shell, type 'fg' to get back */
+static void suspend(const Arg *arg);
 /* switch to mode indicated by arg->i */
 static void switchmode(const Arg *arg);
 /* set mark indicated by arg->i to current cursor position */
@@ -768,6 +770,11 @@ static size_t window_lines_bottom(const Arg *arg) {
 
 /** key bindings functions of type: void (*func)(const Arg*) */
 
+static void suspend(const Arg *arg) {
+	endwin();
+	raise(SIGSTOP);
+}
+
 static void repeat(const Arg *arg) {
 	action = action_prev;
 	action_do(&action);
@@ -1512,6 +1519,7 @@ static void setup() {
 	sigemptyset(&sa.sa_mask);
 	sa.sa_handler = sigwinch_handler;
 	sigaction(SIGWINCH, &sa, NULL);
+	sigaction(SIGCONT, &sa, NULL);
 }
 
 static bool keymatch(Key *key0, Key *key1) {