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// Copyright 2017 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/extensions/chrome_app_icon.h"
#include <algorithm>
#include "build/chromeos_buildflags.h"
#include "chrome/browser/extensions/chrome_app_icon_delegate.h"
#include "chrome/browser/extensions/extension_util.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extension_util.h"
#include "extensions/common/manifest_handlers/icons_handler.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/image/canvas_image_source.h"
#include "ui/gfx/image/image_skia_operations.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/browser/ash/extensions/gfx_utils.h"
#endif
namespace extensions {
namespace {
// Rounds the corners of a given image.
// TODO(khmel): avoid sub-classing CanvasImageSource.
class RoundedCornersImageSource : public gfx::CanvasImageSource {
public:
explicit RoundedCornersImageSource(const gfx::ImageSkia& icon)
: gfx::CanvasImageSource(icon.size()), icon_(icon) {}
RoundedCornersImageSource(const RoundedCornersImageSource&) = delete;
RoundedCornersImageSource& operator=(const RoundedCornersImageSource&) =
delete;
~RoundedCornersImageSource() override = default;
private:
// gfx::CanvasImageSource overrides:
void Draw(gfx::Canvas* canvas) override {
// The radius used to round the app icon, based on 2 pixel per 48 pixels
// icon size.
const int rounding_radius =
std::max<int>(std::round(2.0 * icon_.width() / 48.0), 1);
canvas->DrawImageInt(icon_, 0, 0);
cc::PaintFlags masking_flags;
masking_flags.setBlendMode(SkBlendMode::kDstIn);
canvas->SaveLayerWithFlags(masking_flags);
cc::PaintFlags mask_flags;
mask_flags.setAntiAlias(true);
mask_flags.setColor(SK_ColorWHITE);
canvas->DrawRoundRect(gfx::Rect(icon_.width(), icon_.height()),
rounding_radius, mask_flags);
canvas->Restore();
}
gfx::ImageSkia icon_;
};
} // namespace
// static
void ChromeAppIcon::ApplyEffects(int resource_size_in_dip,
const ResizeFunction& resize_function,
bool app_launchable,
bool rounded_corners,
Badge badge_type,
gfx::ImageSkia* image_skia) {
if (!resize_function.is_null()) {
resize_function.Run(gfx::Size(resource_size_in_dip, resource_size_in_dip),
image_skia);
}
if (!app_launchable) {
constexpr color_utils::HSL shift = {-1, 0, 0.6};
*image_skia =
gfx::ImageSkiaOperations::CreateHSLShiftedImage(*image_skia, shift);
}
#if BUILDFLAG(IS_CHROMEOS)
// Badge should be added after graying out the icon to have a crisp look.
if (badge_type != Badge::kNone) {
util::ApplyBadge(image_skia, badge_type);
}
#endif
if (rounded_corners) {
*image_skia =
gfx::ImageSkia(std::make_unique<RoundedCornersImageSource>(*image_skia),
image_skia->size());
}
}
ChromeAppIcon::ChromeAppIcon(ChromeAppIconDelegate* delegate,
content::BrowserContext* browser_context,
DestroyedCallback destroyed_callback,
const std::string& app_id,
int resource_size_in_dip,
const ResizeFunction& resize_function)
: delegate_(delegate),
browser_context_(browser_context),
destroyed_callback_(std::move(destroyed_callback)),
app_id_(app_id),
resource_size_in_dip_(resource_size_in_dip),
resize_function_(resize_function) {
DCHECK(delegate_);
DCHECK(browser_context_);
DCHECK(!destroyed_callback_.is_null());
DCHECK_GE(resource_size_in_dip, 0);
Reload();
}
ChromeAppIcon::~ChromeAppIcon() {
std::move(destroyed_callback_).Run(this);
}
const Extension* ChromeAppIcon::GetExtension() {
return ExtensionRegistry::Get(browser_context_)
->GetInstalledExtension(app_id_);
}
void ChromeAppIcon::Reload() {
const Extension* extension = GetExtension();
const gfx::ImageSkia default_icon = extension && extension->is_app()
? util::GetDefaultAppIcon()
: util::GetDefaultExtensionIcon();
icon_ = std::make_unique<IconImage>(
browser_context_, extension,
extension ? IconsInfo::GetIcons(extension) : ExtensionIconSet(),
resource_size_in_dip_, !resize_function_.is_null(), default_icon, this);
UpdateIcon();
}
bool ChromeAppIcon::IsValid() const {
DCHECK(icon_);
return icon_->is_valid();
}
void ChromeAppIcon::UpdateIcon() {
DCHECK(icon_);
image_skia_ = icon_->image_skia();
Badge badge_type = Badge::kNone;
bool app_launchable = util::IsAppLaunchable(app_id_, browser_context_);
#if BUILDFLAG(IS_CHROMEOS)
has_chrome_badge_ = util::ShouldApplyChromeBadge(browser_context_, app_id_);
if (!app_launchable) {
badge_type = Badge::kBlocked;
} else if (has_chrome_badge_) {
badge_type = Badge::kChrome;
}
#endif
ApplyEffects(resource_size_in_dip_, resize_function_, app_launchable,
/*rounded_corners=*/false, badge_type, &image_skia_);
delegate_->OnIconUpdated(this);
}
void ChromeAppIcon::OnExtensionIconImageChanged(IconImage* icon) {
DCHECK_EQ(icon_.get(), icon);
UpdateIcon();
}
} // namespace extensions
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