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# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# =============================================
# PLEASE DO NOT ADD MORE FLAGS TO THIS FILE
# =============================================
#
# These flags are effectively global. Your feature flag should go near the
# code it controls. Most of these items are here now because they control
# legacy global #defines passed to the compiler (now replaced with generated
# buildflag headers -- see //build/buildflag_header.gni).
#
# These flags are ui-related so should eventually be moved to various places
# in //ui/*.
#
# There is more advice on where to put build flags in the "Build flag" section
# of //build/config/BUILDCONFIG.gn.
import("//build/config/chromecast_build.gni")
import("//build/config/features.gni")
declare_args() {
# Indicates if Ash is enabled. Ash is the Aura Shell which provides a
# desktop-like environment for Aura. Requires use_aura = true
use_ash = is_chromeos && !is_chromecast
# Indicates if Ozone is enabled. Ozone is a low-level library layer for Linux
# that does not require X11. Enabling this feature disables use of glib, x11,
# Pango, and Cairo. Default to false on non-Chromecast builds.
use_ozone = is_chromecast && !is_android
# Indicates if Aura is enabled. Aura is a low-level windowing library, sort
# of a replacement for GDI or GTK.
use_aura = is_win || is_linux
# Whether we should use glib, a low level C utility library.
use_glib = is_linux
# Indicates if Wayland display server support is enabled.
enable_wayland_server = is_chromeos
# Enable experimental vulkan backend.
enable_vulkan = false
}
declare_args() {
# True means the UI is built using the "views" framework.
toolkit_views =
(is_mac || is_win || is_chromeos || use_aura) && !is_chromecast
use_xscrnsaver = !is_chromeos
}
# Additional dependent variables -----------------------------------------------
#
# These variables depend on other variables and can't be set externally.
# Use GPU accelerated cross process image transport by default on linux builds
# with the Aura window manager.
ui_compositor_image_transport = use_aura && is_linux && !use_qt
# Indicates if the UI toolkit depends on X11.
use_x11 = is_linux && !use_ozone
# Indicates if the UI toolkit depends on GTK.
use_gtk = use_x11 && !use_qt
# Turn off glib if Ozone is enabled.
if (use_ozone) {
use_glib = false
}
if (!use_x11) {
use_xscrnsaver = false
}
if (use_gtk) {
use_cairo = true
use_pango = true
} else {
use_cairo = false
use_pango = false
}
# Whether to use atk, the Accessibility ToolKit library
use_atk = is_desktop_linux && use_gtk
# =============================================
# PLEASE DO NOT ADD MORE FLAGS TO THIS FILE
# =============================================
#
# See comment at the top.
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