1 # Copyright 2014 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
5 # This file contains UI-related build flags. It should theoretically be in the
6 # src/ui directory and only things that depend on the ui module should get the
9 # However, today we have many "bad" dependencies on some of these flags from,
10 # e.g. base, so they need to be global.
12 # See also build/config/features.gni
15 # Indicates if Ash is enabled. Ash is the Aura Shell which provides a
16 # desktop-like environment for Aura. Requires use_aura = true
17 use_ash = is_win || is_chromeos
19 # Indicates if Ozone is enabled. Ozone is a low-level library layer for Linux
20 # that does not require X11.
23 # Support ChromeOS touchpad gestures with ozone.
24 use_evdev_gestures = false
26 # Indicates if Aura is enabled. Aura is a low-level windowing library, sort
27 # of a replacement for GDI or GTK.
28 use_aura = is_linux || use_ozone || is_win || is_chromeos || use_ash
30 # XInput2 multitouch support. Zero means disabled, nonzero indicates the
31 # minimum XI2 version. For example, use_xi2_mt=2 means XI2.2 or above.
34 # True means the UI is built using the "views" framework.
35 toolkit_views = is_win || is_chromeos || use_aura
38 # Additional dependent variables -----------------------------------------------
40 # These variables depend on other variables and can't be set externally.
50 # Use GPU accelerated cross process image transport by default on linux builds
51 # with the Aura window manager.
52 ui_compositor_image_transport = use_aura && is_linux
54 use_default_render_theme = use_aura || is_linux
56 # Indicates if the UI toolkit depends on X11.
57 use_x11 = is_linux && !use_ozone
59 use_ozone_evdev = use_ozone
63 use_clipboard_aurax11 = is_linux && use_aura && use_x11