On Mon, 2017-04-03 at 08:58 +0200, Pavel Grunt wrote:
> Hi Jonathon,
>
> On Wed, 2017-03-29 at 15:24 -0500, Jonathon Jongsma wrote:
> > When started in fullscreen mode with a monitor-mapping
> > configuration
> > option, we are getting the following warnings on the terminal:
>
> I haven't seen it. wayland ?
Yes. Wayland on Fedora 25.
>
> >
> > (process:27428): Gdk-CRITICAL **: gdk_screen_get_n_monitors:
> > assertion 'GDK_IS_SCREEN (screen)' failed
> >
> > ** (process:27428): WARNING **: Invalid monitor-mapping
> > configuration: monitor #1 for display #1 does not exist
> >
> > This is apparently because we were processing the fallback monitor
> > mapping before the graphic server display was opened, so
> > gdk_screen_get_default() returned NULL. This resulted in
> > gdk_screen_get_n_monitors() reporting that we had 0 monitors.
> >
> > This patch moves the fallback monitor mapping parsing from
> > virt_viewer_app_init() to virt_viewer_app_on_application_startup(),
> > after chaining up to the base class startup() vfunc. The graphic
> > server
> > display is opened in the base class vfunc, so by the time that
> > returns,
> > we should be able to query the number of monitors.
>
> sure, it makes a sense. Ack
>
> >
> > The patch also adds a check in virt_viewer_parse_monitor_mappings()
> > to
> > ensure that we pass a sane value for nmonitors.
>
> Sounds like testable
Can you clarify what you mean here?
>
> Thanks,
> Pavel
>
>
> > ---
> > src/virt-viewer-app.c | 2 +-
> > src/virt-viewer-util.c | 7 +++++--
> > 2 files changed, 6 insertions(+), 3 deletions(-)
> >
> > diff --git a/src/virt-viewer-app.c b/src/virt-viewer-app.c
> > index 2e7e193..8c5c3f5 100644
> > --- a/src/virt-viewer-app.c
> > +++ b/src/virt-viewer-app.c
> > @@ -1730,7 +1730,6 @@ virt_viewer_app_init(VirtViewerApp *self)
> >
> > g_clear_error(&error);
> >
> > - self->priv->initial_display_map =
> > virt_viewer_app_get_monitor_mapping_for_section(self, "fallback");
> > g_signal_connect(self, "notify::guest-name",
> > G_CALLBACK(title_maybe_changed), NULL);
> > g_signal_connect(self, "notify::title",
> > G_CALLBACK(title_maybe_changed), NULL);
> > g_signal_connect(self, "notify::guri",
> > G_CALLBACK(title_maybe_changed), NULL);
> > @@ -1807,6 +1806,7 @@
> > virt_viewer_app_on_application_startup(GApplication *app)
> > self->priv->main_window = virt_viewer_app_window_new(self,
> > virt_view
> > e
> > r_app_get_first_monitor(self));
> > self->priv->main_notebook =
> > GTK_WIDGET(virt_viewer_window_get_notebook(self->priv-
> > > main_window));
> >
> > + self->priv->initial_display_map =
> > virt_viewer_app_get_monitor_mapping_for_section(self, "fallback");
> >
> > virt_viewer_app_set_kiosk(self, opt_kiosk);
> > virt_viewer_app_set_hotkeys(self, opt_hotkeys);
> > diff --git a/src/virt-viewer-util.c b/src/virt-viewer-util.c
> > index 0491f73..6b63133 100644
> > --- a/src/virt-viewer-util.c
> > +++ b/src/virt-viewer-util.c
> > @@ -641,11 +641,14 @@
> > virt_viewer_shift_monitors_to_origin(GHashTable *displays)
> > GHashTable*
> > virt_viewer_parse_monitor_mappings(gchar **mappings, const gsize
> > nmappings, const gint nmonitors)
> > {
> > - GHashTable *displaymap = g_hash_table_new(g_direct_hash,
> > g_direct_equal);
> > - GHashTable *monitormap = g_hash_table_new(g_direct_hash,
> > g_direct_equal);
> > + GHashTable *displaymap;
> > + GHashTable *monitormap;
> > gint i, max_display_id = 0;
> > gchar **tokens = NULL;
> >
> > + g_return_val_if_fail(nmonitors != 0, NULL);
> > + displaymap = g_hash_table_new(g_direct_hash, g_direct_equal);
> > + monitormap = g_hash_table_new(g_direct_hash, g_direct_equal);
> > if (nmappings == 0) {
> > g_warning("Empty monitor-mapping configuration");
> > goto configerror;
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