core: Relax requirement that MetaWindow shall have icon/mini-icon

We use a GtkIconTheme (thus icon-theme, thus xsettings, thus x11) just to
grab a "missing icon" icon to show in place. Relax this requirement that
surfaces for icon/mini-icon will be set, and just let it have NULL here.

It seems better to have the callers (presumably UI layers) aware of this
and set a proper icon by themselves, but AFAICS there is none in sight,
not even plain mutter seems to use MetaWindow::[mini-]icon. Probably
worth a future cleanup.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/420
This commit is contained in:
Carlos Garnacho 2018-12-30 14:18:09 +01:00 committed by Jonas Ådahl
parent 5e0523cc8b
commit 2f217109aa

View File

@ -5373,50 +5373,6 @@ redraw_icon (MetaWindow *window)
meta_frame_queue_draw (window->frame);
}
static cairo_surface_t *
load_default_window_icon (int size)
{
GtkIconTheme *theme = gtk_icon_theme_get_default ();
g_autoptr (GdkPixbuf) pixbuf = NULL;
const char *icon_name;
if (gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME))
icon_name = META_DEFAULT_ICON_NAME;
else
icon_name = "image-missing";
pixbuf = gtk_icon_theme_load_icon (theme, icon_name, size, 0, NULL);
return gdk_cairo_surface_create_from_pixbuf (pixbuf, 1, NULL);
}
static cairo_surface_t *
get_default_window_icon (void)
{
static cairo_surface_t *default_icon = NULL;
if (default_icon == NULL)
{
default_icon = load_default_window_icon (META_ICON_WIDTH);
g_assert (default_icon);
}
return cairo_surface_reference (default_icon);
}
static cairo_surface_t *
get_default_mini_icon (void)
{
static cairo_surface_t *default_icon = NULL;
if (default_icon == NULL)
{
default_icon = load_default_window_icon (META_MINI_ICON_WIDTH);
g_assert (default_icon);
}
return cairo_surface_reference (default_icon);
}
static void
meta_window_update_icon_now (MetaWindow *window,
gboolean force)
@ -5433,17 +5389,11 @@ meta_window_update_icon_now (MetaWindow *window,
{
if (window->icon)
cairo_surface_destroy (window->icon);
if (icon)
window->icon = icon;
else
window->icon = get_default_window_icon ();
window->icon = icon;
if (window->mini_icon)
cairo_surface_destroy (window->mini_icon);
if (mini_icon)
window->mini_icon = mini_icon;
else
window->mini_icon = get_default_mini_icon ();
window->mini_icon = mini_icon;
g_object_freeze_notify (G_OBJECT (window));
g_object_notify_by_pspec (G_OBJECT (window), obj_props[PROP_ICON]);
@ -5452,9 +5402,6 @@ meta_window_update_icon_now (MetaWindow *window,
redraw_icon (window);
}
g_assert (window->icon);
g_assert (window->mini_icon);
}
static gboolean