xF: add bindings to scroll to the top and bottom

xF.c

@@ -280,6 +280,8 @@ enum action
 	ACTION_FORMAT_UNDERLINE,
 	ACTION_SCROLL_UP,
 	ACTION_SCROLL_DOWN,
+	ACTION_SCROLL_TOP,
+	ACTION_SCROLL_BOTTOM,
 	ACTION_BUFFER_LIST_SCROLL_UP,
 	ACTION_BUFFER_LIST_SCROLL_DOWN,
 	ACTION_SUBMIT,
@@ -3848,6 +3850,10 @@ app_process_action (enum action action)
 		return app_scroll (WIDGET_TRANSCRIPT_SCROLLBAR, -page);
 	case ACTION_SCROLL_DOWN:
 		return app_scroll (WIDGET_TRANSCRIPT_SCROLLBAR, +page);
+	case ACTION_SCROLL_TOP:
+		return app_scroll (WIDGET_TRANSCRIPT_SCROLLBAR, INT_MIN);
+	case ACTION_SCROLL_BOTTOM:
+		return app_scroll (WIDGET_TRANSCRIPT_SCROLLBAR, INT_MAX);
 	case ACTION_BUFFER_LIST_SCROLL_UP:
 		return app_scroll (WIDGET_BUFFER_LIST_SCROLLBAR, -page);
 	case ACTION_BUFFER_LIST_SCROLL_DOWN:
@@ -3995,6 +4001,8 @@ g_default_bindings[] =
 	{ "M-m",        ACTION_FORMAT                 },
 	{ "PageUp",     ACTION_SCROLL_UP              },
 	{ "PageDown",   ACTION_SCROLL_DOWN            },
+	{ "C-Home",     ACTION_SCROLL_TOP             },
+	{ "C-End",      ACTION_SCROLL_BOTTOM          },
 	{ "S-PageUp",   ACTION_BUFFER_LIST_SCROLL_UP   },
 	{ "S-PageDown", ACTION_BUFFER_LIST_SCROLL_DOWN },
 	{ "Enter",      ACTION_SUBMIT                 },