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// Copyright 2022 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_reader.h"
#include "ash/constants/ash_switches.h"
#include "base/files/file_util.h"
#include "base/task/thread_pool.h"
#include "base/trace_event/trace_event.h"
#include "chrome/browser/apps/app_service/app_icon/app_icon_decoder.h"
#include "chrome/browser/apps/app_service/app_icon/app_icon_factory.h"
#include "chrome/browser/apps/app_service/app_icon/app_icon_util.h"
#include "chrome/browser/apps/app_service/app_icon/dip_px_util.h"
#include "chrome/browser/ash/app_list/arc/arc_app_utils.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/grit/chrome_unscaled_resources.h"
#include "chrome/grit/component_extension_resources.h"
#include "components/app_constants/constants.h"
namespace {
bool UseSmallIcon(int32_t size_in_dip) {
int size_in_px = apps_util::ConvertDipToPx(
size_in_dip, /*quantize_to_supported_scale_factor=*/false);
return size_in_px <= 32;
}
int GetResourceIdForIcon(const std::string& id,
int32_t size_in_dip,
const apps::IconKey& icon_key) {
if (id == arc::kPlayStoreAppId) {
return UseSmallIcon(size_in_dip) ? IDR_ARC_SUPPORT_ICON_32_PNG
: IDR_ARC_SUPPORT_ICON_192_PNG;
}
return icon_key.resource_id;
}
} // namespace
namespace apps {
AppIconReader::AppIconReader(Profile* profile) : profile_(profile) {}
AppIconReader::~AppIconReader() = default;
void AppIconReader::ReadIcons(const std::string& id,
int32_t size_in_dip,
const IconKey& icon_key,
IconType icon_type,
LoadIconCallback callback) {
TRACE_EVENT0("ui", "AppIconReader::ReadIcons");
IconEffects icon_effects = static_cast<IconEffects>(icon_key.icon_effects);
int resource_id = GetResourceIdForIcon(id, size_in_dip, icon_key);
if (resource_id != IconKey::kInvalidResourceId) {
LoadIconFromResource(profile_, id, icon_type, size_in_dip, resource_id,
/*is_placeholder_icon=*/false, icon_effects,
std::move(callback));
return;
}
const base::FilePath& base_path = profile_->GetPath();
if (icon_type == IconType::kUnknown) {
std::move(callback).Run(std::make_unique<apps::IconValue>());
return;
}
decodes_.emplace_back(std::make_unique<AppIconDecoder>(
base_path, id, size_in_dip,
base::BindOnce(&AppIconReader::OnUncompressedIconRead,
weak_ptr_factory_.GetWeakPtr(), size_in_dip, icon_effects,
icon_type, id, std::move(callback))));
decodes_.back()->Start();
}
void AppIconReader::OnUncompressedIconRead(int32_t size_in_dip,
IconEffects icon_effects,
IconType icon_type,
const std::string& id,
LoadIconCallback callback,
AppIconDecoder* decoder,
IconValuePtr iv) {
TRACE_EVENT0("ui", "AppIconReader::OnUncompressedIconRead");
DCHECK_NE(IconType::kUnknown, icon_type);
auto it = std::ranges::find(decodes_, decoder,
&std::unique_ptr<AppIconDecoder>::get);
CHECK(it != decodes_.end());
decodes_.erase(it);
if (!iv || iv->icon_type != IconType::kUncompressed ||
iv->uncompressed.isNull()) {
std::move(callback).Run(std::move(iv));
return;
}
iv->icon_type = icon_type;
if (!icon_effects) {
// If the caller requests an uncompressed icon, return the uncompressed
// result; otherwise, encode the icon to a compressed icon, return the
// compressed result.
OnCompleteWithIconValue(size_in_dip, icon_type, std::move(callback),
std::move(iv));
return;
}
// Apply the icon effects on the uncompressed data.
// Per https://www.w3.org/TR/appmanifest/#icon-masks, we apply a white
// background in case the maskable icon contains transparent pixels in its
// safe zone, and clear the standard icon effect, apply the mask to the icon
// without shrinking it.
if (iv->is_maskable_icon) {
icon_effects &= ~apps::IconEffects::kCrOsStandardIcon;
icon_effects |= apps::IconEffects::kCrOsStandardBackground;
icon_effects |= apps::IconEffects::kCrOsStandardMask;
}
if (icon_type == apps::IconType::kUncompressed) {
// For uncompressed icon, apply the resize and pad effect.
icon_effects |= apps::IconEffects::kMdIconStyle;
// For uncompressed icon, clear the standard icon effects, kBackground
// and kMask.
icon_effects &= ~apps::IconEffects::kCrOsStandardIcon;
icon_effects &= ~apps::IconEffects::kCrOsStandardBackground;
icon_effects &= ~apps::IconEffects::kCrOsStandardMask;
}
apps::ApplyIconEffects(
profile_, id, icon_effects, size_in_dip, std::move(iv),
base::BindOnce(&AppIconReader::OnCompleteWithIconValue,
weak_ptr_factory_.GetWeakPtr(), size_in_dip, icon_type,
std::move(callback)));
}
void AppIconReader::OnCompleteWithIconValue(int32_t size_in_dip,
IconType icon_type,
LoadIconCallback callback,
IconValuePtr iv) {
TRACE_EVENT0("ui", "AppIconReader::OnCompleteWithIconValue");
iv->uncompressed.MakeThreadSafe();
if (icon_type != IconType::kCompressed) {
std::move(callback).Run(std::move(iv));
return;
}
float icon_scale = static_cast<float>(apps_util::ConvertDipToPx(
size_in_dip,
/*quantize_to_supported_scale_factor=*/true)) /
size_in_dip;
base::ThreadPool::PostTaskAndReplyWithResult(
FROM_HERE, {base::MayBlock(), base::TaskPriority::USER_VISIBLE},
base::BindOnce(&apps::EncodeImageToPngBytes, iv->uncompressed,
icon_scale),
base::BindOnce(&AppIconReader::OnCompleteWithCompressedData,
weak_ptr_factory_.GetWeakPtr(), std::move(callback)));
}
void AppIconReader::OnCompleteWithCompressedData(
LoadIconCallback callback,
std::vector<uint8_t> icon_data) {
TRACE_EVENT0("ui", "AppIconReader::OnCompleteWithCompressedData");
auto iv = std::make_unique<IconValue>();
iv->icon_type = IconType::kCompressed;
iv->compressed = std::move(icon_data);
std::move(callback).Run(std::move(iv));
}
} // namespace apps
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