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tests/test-client: Remove shadow from X11 test client CSS style

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Gtk is quite buggy and "fluid" in how it handles the shadow margins for
windows under X11. The "size" of the window fluctuate between including and
excluding a shadow margin in a way that causes issues, as there are no
atomic update of any state going on.

In order to avoid running into those particular issues now, lets get rid
of shadows so the margins are always zero, when the client is using the
X11 backend.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1171
This commit is contained in:
Jonas Ådahl 2020-04-02 16:05:54 +02:00 committed by Georges Basile Stavracas Neto
parent 2ee3d5392b
commit 48de81b63e
1 changed files with 26 additions and 0 deletions
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26
src/tests/test-client.c
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@ -813,6 +813,32 @@ main(int argc, char **argv)
gtk_init (NULL, NULL);
if (!wayland)
{
GdkScreen *screen;
GtkCssProvider *provider;
screen = gdk_screen_get_default ();
provider = gtk_css_provider_new ();
static const char *no_decoration_css =
"decoration {"
" border-radius: 0 0 0 0;"
" border-width: 0;"
" box-shadow: 0 0 0 0 rgba(0, 0, 0, 0), 0 0 0 0 rgba(0, 0, 0, 0);"
" margin: 0px;"
"}";
if (!gtk_css_provider_load_from_data (provider,
no_decoration_css,
strlen (no_decoration_css),
&error))
{
g_printerr ("%s", error->message);
return 1;
}
gtk_style_context_add_provider_for_screen (screen, GTK_STYLE_PROVIDER (provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
windows = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, NULL);
event_source_quark = g_quark_from_static_string ("event-source");