Yeah, the logic is pretty sketchy now - "if it's a shell surface, do the error checking; otherwise, do nothing" - but I don't understand the code well enough to know if this is the expected behavior.
Should the panel just be a shell surface? Then we could require that the popup's parent is a shell surface and simplify the error check. On Mon, Apr 6, 2015 at 12:33 PM, Derek Foreman <der...@osg.samsung.com> wrote: > This bug was introduced in commits da6ecd0cc52 and 24185e2561 > > I guess nobody right clicked on the panel for over a month. :) > > I've CC'd Jasper and Jonas in case they haven't noticed this yet... > > On 06/04/15 01:52 AM, Dima Ryazanov wrote: > > It looks like the error-checking code assumes the popup's parent is > > a shell surface - but that's not always the case. > > > > Signed-off-by: Dima Ryazanov <d...@gmail.com> > > --- > > desktop-shell/shell.c | 9 +++++---- > > 1 file changed, 5 insertions(+), 4 deletions(-) > > > > diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c > > index f7c928e..0159547 100644 > > --- a/desktop-shell/shell.c > > +++ b/desktop-shell/shell.c > > @@ -3392,7 +3392,7 @@ add_popup_grab(struct shell_surface *shsurf, > > > > parent = get_shell_surface(shsurf->parent); > > top_surface = get_top_popup(shseat); > > - if (shell_surface_is_xdg_popup(shsurf) && > > + if (parent && shell_surface_is_xdg_popup(shsurf) && > > This part broke in da6ecd0cc52 > > Your patch definitely stops the crash for me, which is good. :) > > I think this part's ok, but I'm not 100% sure we're still going to send > the new not-top-level-popup error when we're supposed to now... > > > ((top_surface == NULL && > !shell_surface_is_xdg_surface(parent)) || > > (top_surface != NULL && parent != top_surface))) { > > wl_resource_post_error(shsurf->owner->resource, > > @@ -4098,12 +4098,13 @@ create_xdg_popup(struct shell_client *owner, > void *shell, > > { > > struct shell_surface *shsurf, *parent_shsurf; > > > > - /* Verify that we are creating the top most popup when mapping, > > - * as its not until then we know whether it was mapped as most > > + /* Verify that we are creating the topmost popup when mapping, > > + * as it's not until then we know whether it was mapped as most > > * top level or not. */ > > The grammar fix-ups look good to me. > > > parent_shsurf = get_shell_surface(parent); > > - if (!shell_surface_is_xdg_popup(parent_shsurf) && > > + if (parent_shsurf && > > This part broke in 24185e2561... > > I wonder if we should be doing a more comprehensive test here - it looks > like some invalid parent resources could get past this test? > > > + !shell_surface_is_xdg_popup(parent_shsurf) && > > !shell_surface_is_xdg_surface(parent_shsurf)) { > > wl_resource_post_error(owner->resource, > > XDG_POPUP_ERROR_INVALID_PARENT, > > > > >
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