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// Copyright 2016 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_UPDATER_UNINSTALL_PING_SENDER_H_
#define EXTENSIONS_BROWSER_UPDATER_UNINSTALL_PING_SENDER_H_
#include "base/functional/callback.h"
#include "base/scoped_observation.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extension_registry_observer.h"
namespace content {
class BrowserContext;
}
namespace extensions {
// A class that watches the ExtensionRegistry for uninstall events, and
// uses the UpdateService to send uninstall pings.
class UninstallPingSender : public ExtensionRegistryObserver {
public:
enum FilterResult { SEND_PING, DO_NOT_SEND_PING };
// A callback function that will be called each time an extension is
// uninstalled, with the result used to determine if a ping should be
// sent or not.
using Filter =
base::RepeatingCallback<FilterResult(const Extension* extension,
UninstallReason reason)>;
UninstallPingSender(ExtensionRegistry* registry, Filter filter);
UninstallPingSender(const UninstallPingSender&) = delete;
UninstallPingSender& operator=(const UninstallPingSender&) = delete;
~UninstallPingSender() override;
protected:
// ExtensionRegistryObserver:
void OnExtensionUninstalled(content::BrowserContext* browser_context,
const Extension* extension,
UninstallReason reason) override;
private:
// Callback for determining whether to send uninstall pings.
Filter filter_;
base::ScopedObservation<ExtensionRegistry, ExtensionRegistryObserver>
observer_{this};
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_UPDATER_UNINSTALL_PING_SENDER_H_
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