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 (see features.gni for Chrome
6 # feature-related ones). These should theoretically be moved to the ui
9 # However, today we have many "bad" dependencies on some of these flags from,
10 # e.g. base, so they need to be global to match the GYP configuration. Also,
11 # anything that needs a grit define must be in either this file or features.gni.
13 # PLEASE TRY TO AVOID ADDING FLAGS TO THIS FILE in cases where grit isn't
14 # required. See the declare_args block of BUILDCONFIG.gn for advice on how
15 # to set up feature flags.
18 # Indicates if Ash is enabled. Ash is the Aura Shell which provides a
19 # desktop-like environment for Aura. Requires use_aura = true
20 use_ash = is_win || is_linux
22 # Indicates if Ozone is enabled. Ozone is a low-level library layer for Linux
23 # that does not require X11.
26 # Support ChromeOS touchpad gestures with ozone.
27 use_evdev_gestures = false
29 # Indicates if Aura is enabled. Aura is a low-level windowing library, sort
30 # of a replacement for GDI or GTK.
31 use_aura = is_win || is_linux
33 # True means the UI is built using the "views" framework.
34 toolkit_views = is_mac || is_win || is_chromeos || use_aura
36 # Whether the entire browser uses toolkit-views on Mac instead of Cocoa.
37 mac_views_browser = false
40 # Additional dependent variables -----------------------------------------------
42 # These variables depend on other variables and can't be set externally.
44 # Use GPU accelerated cross process image transport by default on linux builds
45 # with the Aura window manager.
46 ui_compositor_image_transport = use_aura && is_linux
48 use_default_render_theme = use_aura && !is_android
50 # Indicates if the UI toolkit depends on X11.
51 use_x11 = is_linux && !use_ozone
53 # Whether we should use glib, a low level C utility library.
54 use_glib = is_linux && !use_ozone
56 if (is_linux && use_glib) {
64 # Whether to use atk, the Accessibility ToolKit library
65 use_atk = is_desktop_linux && use_x11
67 use_ozone_evdev = use_ozone
69 use_clipboard_aurax11 = is_linux && use_aura && use_x11
71 enable_hidpi = is_mac || is_win || is_linux
73 enable_topchrome_md = is_chromeos || is_win || is_linux