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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/examples/examples_main_proc.h"
#include <memory>
#include <string>
#include <utility>
#include "base/base_switches.h"
#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/files/file_path.h"
#include "base/functional/bind.h"
#include "base/i18n/icu_util.h"
#include "base/lazy_instance.h"
#include "base/memory/ptr_util.h"
#include "base/path_service.h"
#include "base/power_monitor/power_monitor.h"
#include "base/power_monitor/power_monitor_device_source.h"
#include "base/run_loop.h"
#include "base/test/scoped_run_loop_timeout.h"
#include "base/test/task_environment.h"
#include "base/test/test_discardable_memory_allocator.h"
#include "base/test/test_timeouts.h"
#include "build/build_config.h"
#include "components/viz/host/host_frame_sink_manager.h"
#include "components/viz/service/frame_sinks/frame_sink_manager_impl.h"
#include "mojo/core/embedder/embedder.h"
#include "ui/accessibility/platform/ax_platform_for_test.h"
#include "ui/base/ime/init/input_method_initializer.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/ui_base_paths.h"
#include "ui/color/color_provider_manager.h"
#include "ui/compositor/compositor_switches.h"
#include "ui/compositor/test/in_process_context_factory.h"
#include "ui/compositor/test/test_context_factories.h"
#include "ui/display/screen.h"
#include "ui/gfx/font_util.h"
#include "ui/gfx/image/image.h"
#include "ui/gl/gl_utils.h"
#include "ui/gl/init/gl_factory.h"
#include "ui/views/buildflags.h"
#include "ui/views/examples/example_base.h"
#include "ui/views/examples/examples_color_mixer.h"
#include "ui/views/examples/examples_window.h"
#include "ui/views/test/desktop_test_views_delegate.h"
#include "ui/views/widget/any_widget_observer.h"
#include "ui/views/widget/widget.h"
#if defined(USE_AURA)
#include "ui/aura/env.h"
#include "ui/wm/core/wm_state.h"
#endif
#if BUILDFLAG(IS_CHROMEOS)
#include "ui/views/examples/examples_views_delegate_chromeos.h"
#endif
#if BUILDFLAG(ENABLE_DESKTOP_AURA)
#include "ui/views/widget/desktop_aura/desktop_screen.h"
#endif
#if BUILDFLAG(IS_WIN)
#include "ui/base/win/scoped_ole_initializer.h"
#include "ui/views/examples/examples_skia_gold_pixel_diff.h"
#endif
#if BUILDFLAG(IS_MAC)
#include "ui/views/examples/examples_main_proc_mac_parts.h"
#endif
#if BUILDFLAG(IS_OZONE)
#include "ui/ozone/public/ozone_platform.h"
#endif
namespace views::examples {
base::LazyInstance<base::TestDiscardableMemoryAllocator>::DestructorAtExit
g_discardable_memory_allocator = LAZY_INSTANCE_INITIALIZER;
bool g_initialized_once = false;
ExamplesExitCode ExamplesMainProc(bool under_test, ExampleVector examples) {
#if BUILDFLAG(IS_WIN)
ui::ScopedOleInitializer ole_initializer;
#endif
#if BUILDFLAG(IS_MAC)
ExamplesMainProcMacParts();
#endif
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
if (CheckCommandLineUsage()) {
return ExamplesExitCode::kSucceeded;
}
ui::AXPlatformForTest ax_platform;
// Disabling Direct Composition works around the limitation that
// InProcessContextFactory doesn't work with Direct Composition, causing the
// window to not render. See http://crbug.com/936249.
command_line->AppendSwitch(switches::kDisableDirectComposition);
base::FeatureList::InitInstance(
command_line->GetSwitchValueASCII(switches::kEnableFeatures),
command_line->GetSwitchValueASCII(switches::kDisableFeatures));
if (under_test) {
command_line->AppendSwitch(switches::kEnablePixelOutputInTests);
}
#if BUILDFLAG(IS_OZONE)
ui::OzonePlatform::InitParams params;
params.single_process = true;
ui::OzonePlatform::InitializeForGPU(params);
#endif
// ExamplesMainProc can be called multiple times in a test suite.
// These methods should only be initialized once.
if (!g_initialized_once) {
mojo::core::Init();
gl::init::InitializeGLOneOff(
/*gpu_preference=*/gl::GpuPreference::kDefault);
base::i18n::InitializeICU();
ui::RegisterPathProvider();
base::DiscardableMemoryAllocator::SetInstance(
g_discardable_memory_allocator.Pointer());
gfx::InitializeFonts();
g_initialized_once = true;
}
// Viz depends on the task environment to correctly tear down.
base::test::TaskEnvironment task_environment(
base::test::TaskEnvironment::MainThreadType::UI);
// The ContextFactory must exist before any Compositors are created.
auto context_factories =
std::make_unique<ui::TestContextFactories>(under_test,
/*output_to_window=*/true);
base::FilePath ui_test_pak_path;
CHECK(base::PathService::Get(ui::UI_TEST_PAK, &ui_test_pak_path));
ui::ResourceBundle::InitSharedInstanceWithPakPath(ui_test_pak_path);
base::FilePath views_examples_resources_pak_path;
CHECK(base::PathService::Get(base::DIR_ASSETS,
&views_examples_resources_pak_path));
ui::ResourceBundle::GetSharedInstance().AddDataPackFromPath(
views_examples_resources_pak_path.AppendASCII(
"views_examples_resources.pak"),
ui::k100Percent);
ui::ColorProviderManager::Get().AppendColorProviderInitializer(
base::BindRepeating(&AddExamplesColorMixers));
#if defined(USE_AURA)
std::unique_ptr<aura::Env> env = aura::Env::CreateInstance();
aura::Env::GetInstance()->set_context_factory(
context_factories->GetContextFactory());
#endif
ui::InitializeInputMethodForTesting();
ExamplesExitCode compare_result = ExamplesExitCode::kSucceeded;
{
#if BUILDFLAG(IS_CHROMEOS)
ExamplesViewsDelegateChromeOS views_delegate;
#else // BUILDFLAG(IS_CHROMEOS)
views::DesktopTestViewsDelegate views_delegate;
#if BUILDFLAG(IS_MAC)
views_delegate.set_context_factory(context_factories->GetContextFactory());
#endif
#if defined(USE_AURA)
wm::WMState wm_state;
#endif
#endif // !BUILDFLAG(IS_CHROMEOS)
#if BUILDFLAG(IS_MAC)
display::ScopedNativeScreen desktop_screen;
#elif BUILDFLAG(ENABLE_DESKTOP_AURA)
std::unique_ptr<display::Screen> desktop_screen =
views::CreateDesktopScreen();
#endif
base::RunLoop run_loop(base::RunLoop::Type::kNestableTasksAllowed);
#if BUILDFLAG(IS_WIN)
ExamplesSkiaGoldPixelDiff pixel_diff;
views::AnyWidgetObserver widget_observer{
views::test::AnyWidgetTestPasskey()};
// If this app isn't a test, it shouldn't timeout.
auto disable_timeout =
std::make_unique<base::test::ScopedDisableRunLoopTimeout>();
if (under_test) {
pixel_diff.Init("ViewsExamples");
widget_observer.set_shown_callback(
base::BindRepeating(&ExamplesSkiaGoldPixelDiff::OnExamplesWindowShown,
base::Unretained(&pixel_diff)));
// Enable the timeout since we're not running in a test.
disable_timeout.reset();
}
#else
base::test::ScopedDisableRunLoopTimeout disable_timeout;
#endif
if (examples.empty()) {
views::examples::ShowExamplesWindow(run_loop.QuitClosure());
} else {
views::examples::ShowExamplesWindow(run_loop.QuitClosure(),
std::move(examples));
}
run_loop.Run();
#if BUILDFLAG(IS_WIN)
compare_result = pixel_diff.get_result();
#endif
ui::ResourceBundle::CleanupSharedInstance();
}
ui::ShutdownInputMethod();
#if defined(USE_AURA)
env.reset();
#endif
return compare_result;
}
} // namespace views::examples
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