UI: Add UILayout.operator_menu_hold

This is an operator button that opens a menu when the button is held.

1 files changed, 10 insertions, 0 deletions

diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index dc4c1b71066..bc2397d8e47 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -2672,6 +2672,10 @@ static void ui_but_free(const bContext *C, uiBut *but)
 		MEM_freeN(but->tip_argN);
 	}
 
+	if (but->hold_argN) {
+		MEM_freeN(but->hold_argN);
+	}
+
 	if (but->active) {
 		/* XXX solve later, buttons should be free-able without context ideally,
 		 * however they may have open tooltips or popup windows, which need to
@@ -4520,6 +4524,12 @@ void UI_but_focus_on_enter_event(wmWindow *win, uiBut *but)
 	wm_event_add(win, &event);
 }
 
+void UI_but_func_hold_set(uiBut *but, uiButHandleHoldFunc func, void *argN)
+{
+	but->hold_func = func;
+	but->hold_argN = argN;
+}
+
 void UI_but_string_info_get(bContext *C, uiBut *but, ...)
 {
 	va_list args;