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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.
#ifndef CHROME_BROWSER_EXTENSIONS_CHROME_APP_ICON_H_
#define CHROME_BROWSER_EXTENSIONS_CHROME_APP_ICON_H_
#include <memory>
#include <string>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "build/chromeos_buildflags.h"
#include "extensions/browser/extension_icon_image.h"
#include "extensions/buildflags/buildflags.h"
#include "ui/gfx/image/image_skia.h"
static_assert(BUILDFLAG(ENABLE_EXTENSIONS_CORE));
namespace content {
class BrowserContext;
}
namespace extensions {
class Extension;
class ChromeAppIconDelegate;
// This represents how an extension app icon should finally look. As a base,
// extension icon is used and effects that depend on extension type, state and
// some external conditions are applied. Resulting image is sent via
// ChromeAppIconDelegate. Several updates are expected in case extension
// state or some external conditions are changed.
class ChromeAppIcon : public IconImage::Observer {
public:
using DestroyedCallback = base::OnceCallback<void(ChromeAppIcon*)>;
using ResizeFunction =
base::RepeatingCallback<void(const gfx::Size&, gfx::ImageSkia*)>;
// Type of badges that can be applied to app icons.
enum class Badge {
kNone, // No badge applied
kChrome, // Applied to Chrome apps that have ARC++ 'duplicate' installed.
kBlocked, // Applied to disabled apps.
kPaused // Applied to apps that run out of daily time limit.
};
// Applies image processing effects to `image_skia`, such as resizing, adding
// badges, converting to gray and rounding corners.
static void ApplyEffects(int resource_size_in_dip,
const ResizeFunction& resize_function,
bool app_launchable,
bool rounded_corners,
Badge badge_type,
gfx::ImageSkia* image_skia);
// `resize_function` overrides icon resizing behavior if non-null. Otherwise
// IconLoader with perform the resizing. In both cases `resource_size_in_dip`
// is used to pick the correct icon representation from resources.
ChromeAppIcon(ChromeAppIconDelegate* delegate,
content::BrowserContext* browser_context,
DestroyedCallback destroyed_callback,
const std::string& app_id,
int resource_size_in_dip,
const ResizeFunction& resize_function);
ChromeAppIcon(const ChromeAppIcon&) = delete;
ChromeAppIcon& operator=(const ChromeAppIcon&) = delete;
~ChromeAppIcon() override;
// Reloads icon.
void Reload();
// Returns true if the icon still refers to existing extension. Once extension
// is disabled it is discarded from the icon.
bool IsValid() const;
// Re-applies app effects over the current extension icon and dispatches the
// result via `delegate_`.
void UpdateIcon();
const gfx::ImageSkia& image_skia() const { return image_skia_; }
const std::string& app_id() const { return app_id_; }
#if BUILDFLAG(IS_CHROMEOS)
// Returns whether the icon is badged because it's an extension app that has
// its Android analog installed.
bool has_chrome_badge() const { return has_chrome_badge_; }
#endif
private:
const Extension* GetExtension();
// IconImage::Observer:
void OnExtensionIconImageChanged(IconImage* image) override;
// Unowned pointers.
const raw_ptr<ChromeAppIconDelegate> delegate_;
const raw_ptr<content::BrowserContext, AcrossTasksDanglingUntriaged>
browser_context_;
// Called when this instance of ChromeAppIcon is destroyed.
DestroyedCallback destroyed_callback_;
const std::string app_id_;
// Contains current icon image. This is static image with applied effects and
// it is updated each time when `icon_` is updated.
gfx::ImageSkia image_skia_;
#if BUILDFLAG(IS_CHROMEOS)
// Whether the icon got badged because it's an extension app that has its
// Android analog installed.
bool has_chrome_badge_ = false;
#endif
const int resource_size_in_dip_;
// Function to be used to resize the image loaded from a resource. If null,
// resize will be performed by ImageLoader.
const ResizeFunction resize_function_;
std::unique_ptr<IconImage> icon_;
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_CHROME_APP_ICON_H_
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