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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/apps/app_service/app_icon/app_icon_decoder.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/test/test_future.h"
#include "base/threading/thread_restrictions.h"
#include "chrome/browser/apps/app_service/app_icon/app_icon_factory.h"
#include "chrome/browser/apps/app_service/app_icon/app_icon_test_util.h"
#include "chrome/browser/apps/app_service/app_icon/app_icon_util.h"
#include "chrome/test/base/testing_profile.h"
#include "components/services/app_service/public/cpp/icon_types.h"
#include "content/public/test/browser_task_environment.h"
#include "services/data_decoder/public/cpp/test_support/in_process_data_decoder.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/base/resource/resource_scale_factor.h"
#include "ui/gfx/codec/png_codec.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_unittest_util.h"
namespace apps {
namespace {
constexpr char kAppId[] = "foobar";
constexpr int kIconSizeDp = 64;
} // namespace
class AppIconDecoderTest : public testing::Test {
public:
// The type of compressed icon file, which determines the name of the file the
// icon is stored in.
enum class StoredIconType {
kNonMaskable,
kMaskable,
kAdaptiveBackground,
kAdaptiveForeground
};
// Stores icons for all scale factors for the given `app_id` and `size_dp` in
// the App Service icon directory. The icons will be a solid block of the
// given `color.
void StoreSolidColorIconsForApp(const std::string& app_id,
int size_dp,
StoredIconType type,
SkColor color) {
for (const auto scale_factor : ui::GetSupportedResourceScaleFactors()) {
int icon_size_in_px =
gfx::ScaleToFlooredSize(gfx::Size(size_dp, size_dp), scale_factor)
.width();
SkBitmap bitmap = gfx::test::CreateBitmap(icon_size_in_px, color);
std::optional<std::vector<uint8_t>> output =
gfx::PNGCodec::EncodeBGRASkBitmap(bitmap,
/*discard_transparency=*/false);
base::FilePath path;
if (type == StoredIconType::kAdaptiveBackground) {
path = GetBackgroundIconPath(base_path(), app_id, icon_size_in_px);
} else if (type == StoredIconType::kAdaptiveForeground) {
path = GetForegroundIconPath(base_path(), app_id, icon_size_in_px);
} else {
path = GetIconPath(base_path(), app_id, icon_size_in_px,
type == StoredIconType::kMaskable);
}
base::ScopedAllowBlockingForTesting scoped_allow_blocking;
ASSERT_TRUE(base::CreateDirectory(path.DirName()));
ASSERT_TRUE(base::WriteFile(path, output.value()));
}
}
base::FilePath base_path() { return profile_.GetPath(); }
private:
content::BrowserTaskEnvironment task_environment_;
TestingProfile profile_;
data_decoder::test::InProcessDataDecoder in_process_data_decoder_;
};
TEST_F(AppIconDecoderTest, DecodeNonMaskable) {
StoreSolidColorIconsForApp(kAppId, kIconSizeDp, StoredIconType::kNonMaskable,
SK_ColorGREEN);
base::test::TestFuture<AppIconDecoder*, IconValuePtr> icon_future;
AppIconDecoder decoder(base_path(), kAppId, kIconSizeDp,
icon_future.GetCallback());
decoder.Start();
ASSERT_TRUE(icon_future.Wait());
const IconValuePtr& iv = icon_future.Get<1>();
EXPECT_EQ(iv->icon_type, IconType::kUncompressed);
EXPECT_FALSE(iv->is_maskable_icon);
gfx::ImageSkia expected_image =
CreateSquareIconImageSkia(kIconSizeDp, SK_ColorGREEN);
VerifyIcon(expected_image, iv->uncompressed);
}
TEST_F(AppIconDecoderTest, DecodeMaskable) {
StoreSolidColorIconsForApp(kAppId, kIconSizeDp, StoredIconType::kMaskable,
SK_ColorGREEN);
base::test::TestFuture<AppIconDecoder*, IconValuePtr> icon_future;
AppIconDecoder decoder(base_path(), kAppId, kIconSizeDp,
icon_future.GetCallback());
decoder.Start();
ASSERT_TRUE(icon_future.Wait());
const IconValuePtr& iv = icon_future.Get<1>();
EXPECT_EQ(iv->icon_type, IconType::kUncompressed);
EXPECT_TRUE(iv->is_maskable_icon);
gfx::ImageSkia expected_image =
CreateSquareIconImageSkia(kIconSizeDp, SK_ColorGREEN);
VerifyIcon(expected_image, iv->uncompressed);
}
TEST_F(AppIconDecoderTest, DecodeAdaptiveIcon) {
// If the app has both adaptive and non-adaptive icons in storage,
// non-adaptive icons should be ignored.
StoreSolidColorIconsForApp(kAppId, kIconSizeDp, StoredIconType::kNonMaskable,
SK_ColorRED);
StoreSolidColorIconsForApp(
kAppId, kIconSizeDp, StoredIconType::kAdaptiveBackground, SK_ColorGREEN);
StoreSolidColorIconsForApp(kAppId, kIconSizeDp,
StoredIconType::kAdaptiveForeground, SK_ColorBLUE);
base::test::TestFuture<AppIconDecoder*, IconValuePtr> icon_future;
AppIconDecoder decoder(base_path(), kAppId, kIconSizeDp,
icon_future.GetCallback());
decoder.Start();
ASSERT_TRUE(icon_future.Wait());
const IconValuePtr& iv = icon_future.Get<1>();
EXPECT_EQ(iv->icon_type, IconType::kUncompressed);
EXPECT_FALSE(iv->is_maskable_icon);
gfx::ImageSkia expected_foreground =
CreateSquareIconImageSkia(kIconSizeDp, SK_ColorBLUE);
gfx::ImageSkia expected_background =
CreateSquareIconImageSkia(kIconSizeDp, SK_ColorGREEN);
gfx::ImageSkia expected_image = apps::CompositeImagesAndApplyMask(
expected_foreground, expected_background);
EnsureRepresentationsLoaded(expected_image);
VerifyIcon(expected_image, iv->uncompressed);
}
TEST_F(AppIconDecoderTest, DecodeFromEmptyStorage) {
// No icons are placed into storage, which should result in a failed decode.
base::test::TestFuture<AppIconDecoder*, IconValuePtr> icon_future;
AppIconDecoder decoder(base_path(), kAppId, kIconSizeDp,
icon_future.GetCallback());
decoder.Start();
ASSERT_TRUE(icon_future.Wait());
const IconValuePtr& iv = icon_future.Get<1>();
ASSERT_EQ(iv->icon_type, IconType::kUnknown);
}
} // namespace apps
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