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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_BROWSER_EXTENSION_ICON_MANAGER_H_
#define EXTENSIONS_BROWSER_EXTENSION_ICON_MANAGER_H_
#include <map>
#include <set>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "extensions/common/extension_id.h"
#include "ui/gfx/image/image.h"
namespace content {
class BrowserContext;
}
namespace extensions {
class Extension;
class ExtensionIconManager {
public:
class Observer {
public:
virtual void OnImageLoaded(const ExtensionId& extension_id) = 0;
};
ExtensionIconManager();
ExtensionIconManager(const ExtensionIconManager&) = delete;
ExtensionIconManager& operator=(const ExtensionIconManager&) = delete;
virtual ~ExtensionIconManager();
// Start loading the icon for the given extension.
void LoadIcon(content::BrowserContext* context, const Extension* extension);
// This returns an image of width/height kFaviconSize, loaded either from an
// entry specified in the extension's 'icon' section of the manifest, or a
// default extension icon.
gfx::Image GetIcon(const ExtensionId& extension_id);
// Removes the extension's icon from memory.
void RemoveIcon(const ExtensionId& extension_id);
void set_monochrome(bool value) { monochrome_ = value; }
void set_observer(Observer* observer) { observer_ = observer; }
private:
void OnImageLoaded(const ExtensionId& extension_id, const gfx::Image& image);
// Makes sure we've done one-time initialization of the default extension icon
// default_icon_.
void EnsureDefaultIcon();
// Maps extension id to the icon for that extension.
std::map<ExtensionId, gfx::Image> icons_;
// Set of extension IDs waiting for icons to load.
std::set<ExtensionId> pending_icons_;
// The default icon we'll use if an extension doesn't have one.
gfx::Image default_icon_;
// If true, we will desaturate the icons to make them monochromatic.
bool monochrome_ = false;
raw_ptr<Observer> observer_ = nullptr;
base::WeakPtrFactory<ExtensionIconManager> weak_ptr_factory_{this};
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_EXTENSION_ICON_MANAGER_H_
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