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render: add render_xcursor_is_valid()

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Returns true if the provided cursor name is non-NULL, and exist in the
currently loaded xcursor theme.
This commit is contained in:
Daniel Eklöf 2022-01-01 13:56:15 +01:00
parent 92ebe00927
commit e4f9dc7d58
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2 changed files with 11 additions and 1 deletions
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8
render.c
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@ -3801,6 +3801,14 @@ static const struct wl_callback_listener xcursor_listener = {
.done = &xcursor_callback,
};
bool
render_xcursor_is_valid(const struct seat *seat, const char *cursor)
{
if (cursor == NULL)
return false;
return wl_cursor_theme_get_cursor(seat->pointer.theme, cursor) != NULL;
}
static void
render_xcursor_update(struct seat *seat)
{