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window: Handle broken icon themes more gracefully

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We assert that the icons used as default window icons are loaded correctly,
but currently this can fail simply because of an incomplete icon theme. After
all, "image-missing" was only added to the icon-naming spec in 2005 🙄

Handle this case more gracefully by falling back to a completely
transparent "icon".

https://bugzilla.gnome.org/show_bug.cgi?id=720583
https://gitlab.gnome.org/GNOME/mutter/merge_requests/462
This commit is contained in:
Florian Müllner 2019-02-27 22:11:46 +01:00
parent 16a2eab290
commit 9622733140
1 changed files with 5 additions and 1 deletions
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4
src/core/window.c
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@ -5357,7 +5357,11 @@ load_default_window_icon (int size)
icon_name = "image-missing";
pixbuf = gtk_icon_theme_load_icon (theme, icon_name, size, 0, NULL);
if (pixbuf != NULL)
return gdk_cairo_surface_create_from_pixbuf (pixbuf, 1, NULL);
return cairo_image_surface_create (CAIRO_FORMAT_ARGB32, size, size);
}
static cairo_surface_t *