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input: check if the focus surface has a valid resource

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the resource can be NULL in some cases, like when the focus is
taken by the black_surface used in shell.c as fullscreen background.
This commit is contained in:
Giulio Camuffo 2013-06-20 18:13:07 +02:00 committed by Kristian Høgsberg
parent c0b9487937
commit 1fd4b01d10
1 changed files with 5 additions and 0 deletions
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5
src/input.c
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@ -1110,6 +1110,11 @@ pointer_set_cursor(struct wl_client *client, struct wl_resource *resource,
if (pointer->focus == NULL)
return;
/* pointer->focus->resource can be NULL. Surfaces like the
black_surface used in shell.c for fullscreen don't have
a resource, but can still have focus */
if (pointer->focus->resource == NULL)
return;
if (wl_resource_get_client(pointer->focus->resource) != client)
return;
if (pointer->focus_serial - serial > UINT32_MAX / 2)