Move coordinate transformation to pick_surface().

diff --git a/wayland-system-compositor.c b/wayland-system-compositor.c
index e54b01f..a394893 100644 (file)
--- a/wayland-system-compositor.c
+++ b/wayland-system-compositor.c
@@ -567,7 +567,7 @@ const static struct wl_compositor_interface compositor_interface = {
 };
 
 static struct egl_surface *
-pick_surface(struct wlsc_input_device *device)
+pick_surface(struct wlsc_input_device *device, int32_t *sx, int32_t *sy)
 {
        struct egl_compositor *ec = device->ec;
        struct egl_surface *es;
@@ -586,6 +586,10 @@ pick_surface(struct wlsc_input_device *device)
 
                es = container_of(es->link.prev,
                                  struct egl_surface, link);
+
+               /* Transform to surface coordinates. */
+               *sx = (x - es->map.x) * es->width / es->map.width;
+               *sy = (y - es->map.y) * es->height / es->map.height;
        }
 
        return NULL;
@@ -611,14 +615,10 @@ notify_motion(struct wlsc_input_device *device, int x, int y)
        if (y >= ec->height)
                y = ec->height - 1;
 
-       es = pick_surface(device);
-
-       if (es) {
-               sx = (x - es->map.x) * es->width / es->map.width;
-               sy = (y - es->map.y) * es->height / es->map.height;
+       es = pick_surface(device, &sx, &sy);
+       if (es)
                wl_surface_post_event(&es->base, &device->base,
                                      WL_INPUT_MOTION, x, y, sx, sy);
-       }
 
        device->x = x;
        device->y = y;
@@ -639,7 +639,7 @@ notify_button(struct wlsc_input_device *device,
        if (!ec->vt_active)
                return;
 
-       es = pick_surface(device);
+       es = pick_surface(device, &sx, &sy);
        if (es) {
                wl_list_remove(&es->link);
                wl_list_insert(device->ec->surface_list.prev, &es->link);
@@ -654,9 +654,6 @@ notify_button(struct wlsc_input_device *device,
                        device->grab--;
                }
 
-               sx = (device->x - es->map.x) * es->width / es->map.width;
-               sy = (device->y - es->map.y) * es->height / es->map.height;
-
                /* FIXME: Swallow click on raise? */
                wl_surface_post_event(&es->base, &device->base,
                                      WL_INPUT_BUTTON, button, state,