zoom: Call weston_output_activate_zoom() appropriately
No longer call weston_output_update_zoom() when trying to zoom out
on an unzoomed output.
Add an assert() to make sure update_zoom is never called without an
active zoom.
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
diff --git a/src/zoom.c b/src/zoom.c
index 6305427..18fc7ca 100644
--- a/src/zoom.c
+++ b/src/zoom.c
@@ -25,6 +25,7 @@
#include "config.h"
+#include <assert.h>
#include <stdlib.h>
#include <stdbool.h>
@@ -135,6 +136,8 @@
{
struct weston_seat *seat = weston_zoom_pick_seat(output->compositor);
+ assert(output->zoom.active);
+
output->zoom.current.x = seat->pointer->x;
output->zoom.current.y = seat->pointer->y;