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. 4 5# ============================================= 6# PLEASE DO NOT ADD MORE FLAGS TO THIS FILE 7# ============================================= 8# 9# These flags are effectively global. Your feature flag should go near the 10# code it controls. Most of these items are here now because they control 11# legacy global #defines passed to the compiler (now replaced with generated 12# buildflag headers -- see //build/buildflag_header.gni). 13# 14# These flags are ui-related so should eventually be moved to various places 15# in //ui/*. 16# 17# There is more advice on where to put build flags in the "Build flag" section 18# of //build/config/BUILDCONFIG.gn. 19 20import("//build/config/chromecast_build.gni") 21 22declare_args() { 23 # Indicates if Ash is enabled. Ash is the Aura Shell which provides a 24 # desktop-like environment for Aura. Requires use_aura = true 25 use_ash = is_chromeos && !is_chromecast 26 27 # Indicates if Ozone is enabled. Ozone is a low-level library layer for Linux 28 # that does not require X11. Enabling this feature disables use of glib, x11, 29 # Pango, and Cairo. Default to false on non-Chromecast builds. 30 use_ozone = is_chromeos || (is_chromecast && !is_android) 31 32 # Indicates if Aura is enabled. Aura is a low-level windowing library, sort 33 # of a replacement for GDI or GTK. 34 use_aura = (is_win || is_linux) && !build_with_mozilla 35 36 # Whether we should use glib, a low level C utility library. 37 use_glib = is_linux && !build_with_mozilla 38} 39 40declare_args() { 41 # True means the UI is built using the "views" framework. 42 toolkit_views = 43 (is_mac || is_win || is_chromeos || use_aura) && !is_chromecast 44} 45 46# Additional dependent variables ----------------------------------------------- 47# 48# These variables depend on other variables and can't be set externally. 49 50# Indicates if the UI toolkit depends on X11. 51use_x11 = (is_linux || is_bsd) && !use_ozone 52 53# Turn off glib if Ozone is enabled. 54if (use_ozone) { 55 use_glib = false 56} 57 58if (is_linux && !use_ozone && !build_with_mozilla) { 59 use_cairo = true 60 use_pango = true 61} else { 62 use_cairo = false 63 use_pango = false 64} 65 66# Whether to use atk, the Accessibility ToolKit library 67use_atk = is_desktop_linux && use_x11 68# ============================================= 69# PLEASE DO NOT ADD MORE FLAGS TO THIS FILE 70# ============================================= 71# 72# See comment at the top. 73