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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_BROWSER_UNINSTALL_PING_SENDER_H_
#define EXTENSIONS_BROWSER_UNINSTALL_PING_SENDER_H_
#include "base/callback.h"
#include "base/macros.h"
#include "base/scoped_observer.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::Callback<FilterResult(const Extension* extension,
UninstallReason reason)>;
UninstallPingSender(ExtensionRegistry* registry, const Filter& filter);
~UninstallPingSender() override;
protected:
// ExtensionRegistryObserver:
void OnExtensionUninstalled(content::BrowserContext* browser_context,
const Extension* extension,
UninstallReason reason) override;
// Callback for determining whether to send uninstall pings.
Filter filter_;
ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver> observer_;
private:
DISALLOW_COPY_AND_ASSIGN(UninstallPingSender);
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_UNINSTALL_PING_SENDER_H_
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