hide_cursor: Add an option to hide when typing

Add an option for the `hide_cursor` command to hide the cursor when
typing, i.e. whenever a key is pressed.

2 files changed, 13 insertions, 0 deletions

diff --git a/include/sway/config.h b/include/sway/config.h
index 473f723b..59f22ae2 100644
--- a/include/sway/config.h
+++ b/include/sway/config.h
@@ -181,6 +181,12 @@ struct seat_attachment_config {
         // TODO other things are configured here for some reason
 };
 
+enum seat_config_hide_cursor_when_typing {
+        HIDE_WHEN_TYPING_DEFAULT, // the default is currently disabled
+        HIDE_WHEN_TYPING_ENABLE,
+        HIDE_WHEN_TYPING_DISABLE,
+};
+
 enum seat_config_allow_constrain {
         CONSTRAIN_DEFAULT, // the default is currently enabled
         CONSTRAIN_ENABLE,
@@ -216,6 +222,7 @@ struct seat_config {
         int fallback; // -1 means not set
         list_t *attachments; // list of seat_attachment configs
         int hide_cursor_timeout;
+        enum seat_config_hide_cursor_when_typing hide_cursor_when_typing;
         enum seat_config_allow_constrain allow_constrain;
         enum seat_config_shortcuts_inhibit shortcuts_inhibit;
         enum seat_keyboard_grouping keyboard_grouping;
diff --git a/include/sway/input/cursor.h b/include/sway/input/cursor.h
index 4c130faf..ca3c6f4b 100644
--- a/include/sway/input/cursor.h
+++ b/include/sway/input/cursor.h
@@ -6,6 +6,7 @@
 #include <wlr/types/wlr_pointer_gestures_v1.h>
 #include <wlr/types/wlr_surface.h>
 #include "sway/input/seat.h"
+#include "config.h"
 
 #define SWAY_CURSOR_PRESSED_BUTTONS_CAP 32
 
@@ -68,6 +69,10 @@ struct sway_cursor {
 
         struct wl_event_source *hide_source;
         bool hidden;
+        // This field is just a cache of the field in seat_config in order to avoid
+        // costly seat_config lookups on every keypress. HIDE_WHEN_TYPING_DEFAULT
+        // indicates that there is no cached value.
+        enum seat_config_hide_cursor_when_typing hide_when_typing;
 
         size_t pressed_button_count;
 };
@@ -94,6 +99,7 @@ void cursor_handle_activity(struct sway_cursor *cursor,
                 struct wlr_input_device *device);
 void cursor_unhide(struct sway_cursor *cursor);
 int cursor_get_timeout(struct sway_cursor *cursor);
+void cursor_notify_key_press(struct sway_cursor *cursor);
 
 void dispatch_cursor_button(struct sway_cursor *cursor,
         struct wlr_input_device *device, uint32_t time_msec, uint32_t button,