96 lines
2.9 KiB
Plaintext
96 lines
2.9 KiB
Plaintext
# Copyright 2016 The Chromium Embedded Framework Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import("//build/buildflag_header.gni")
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import("//cef/libcef/features/features.gni")
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# This file is in a separate directory so all targets in the build can refer to
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# the buildflag header to get the necessary preprocessor defines without
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# bringing in any CEF targets. Other targets can depend on this target
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# regardless of whether CEF is being built. Set the `enable_cef=false` GN arg to
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# disable the CEF changes when building Chrome.
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#
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# Example usage:
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#
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# 1. An existing GN configuration file at path/to/foo/BUILD.gn:
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#
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# # Import the `enable_cef` arg.
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# import("//cef/libcef/features/features.gni")
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# ...
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#
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# # An existing target that is modified for CEF.
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# # The target type might instead be `component`, `source_set`, etc.
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# static_library("foo") {
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# sources = [ ... ]
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#
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# deps = [
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# # Always include the CEF features.
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# "//cef/libcef/features",
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# ...
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# ]
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#
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# if (enable_cef) {
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# # Actions to perform when the CEF build is enabled.
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#
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# # Optionally include CEF source files directly in this target. This
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# # approach is required for targets that are either directly or
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# # indirectly included in a `component` target (otherwise
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# # `is_component_build=true` builds will fail). Keep in mind that these
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# # files are part of this target instead of the `libcef_static` target
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# # and therefore subject to any target-specific configuration settings
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# # such as include paths, defines, compiler flags, etc.
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# sources += [
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# "//cef/libcef/browser/foo_helper.cc",
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# "//cef/libcef/browser/foo_helper.h",
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# ]
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#
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# # Always include the CEF configuration.
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# configs += [ "//cef/libcef/features:config" ]
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# }
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# ...
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# }
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#
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# 2. An existing C++ source file at path/to/foo/foo.cc:
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#
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# // Include the `BUILDFLAG(ENABLE_CEF)` definition.
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# #include "cef/libcef/features/features.h"
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# ...
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#
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# #if BUILDFLAG(ENABLE_CEF)
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# // CEF headers here...
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# #include "cef/libcef/browser/foo_helper.h"
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# #else
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# // Chrome headers here...
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# #endif
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#
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# // An existing function that is modified for CEF.
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# void DoFoo() {
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# #if BUILDFLAG(ENABLE_CEF)
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# // CEF implementation here...
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# cef_foo_helper::DoFoo();
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# #else
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# // Chrome implementation here...
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# #endif // !BUILDFLAG(ENABLE_CEF)
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# }
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# ...
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#
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buildflag_header("features") {
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header = "features.h"
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flags = [
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"ENABLE_CEF=$enable_cef",
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]
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}
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# Configuration for all targets that include CEF source code library-side.
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config("config") {
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# CEF sources use includes relative to the CEF root directory.
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include_dirs = [ "//cef" ]
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defines = [
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"BUILDING_CEF_SHARED",
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"USING_CHROMIUM_INCLUDES",
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]
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}
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