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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 CHROME_BROWSER_ASH_PRINTING_SYNCED_PRINTERS_MANAGER_H_
#define CHROME_BROWSER_ASH_PRINTING_SYNCED_PRINTERS_MANAGER_H_
#include <memory>
#include <string>
#include <vector>
#include "chromeos/printing/printer_configuration.h"
#include "chromeos/printing/printer_translator.h"
#include "components/keyed_service/core/keyed_service.h"
namespace ash {
class PrintersSyncBridge;
// Manages information about synced local printers classes (SAVED
// and ENTERPRISE). Provides an interface to a user's printers and
// printers provided by policy. User printers are backed by the
// PrintersSyncBridge.
//
// This class is thread-safe.
// TODO(crbug/1030127): Rename to SavedPrintersManager & remove KeyedService.
// TODO(crbug/1030127): Remove lock and add a sequence_checker.
class SyncedPrintersManager : public KeyedService {
public:
class Observer {
public:
virtual void OnSavedPrintersChanged() = 0;
};
static std::unique_ptr<SyncedPrintersManager> Create(
std::unique_ptr<PrintersSyncBridge> sync_bridge);
~SyncedPrintersManager() override = default;
// Returns the printers that are saved in preferences.
virtual std::vector<chromeos::Printer> GetSavedPrinters() const = 0;
// Returns the printer with id |printer_id|, or nullptr if no such printer
// exists. Searches both Saved and Enterprise printers.
virtual std::unique_ptr<chromeos::Printer> GetPrinter(
const std::string& printer_id) const = 0;
// Updates a printer in profile preferences. The |printer| is
// identified by its id field. If |printer| is *not* a saved printer,
// |printer| will become a saved printer.
virtual void UpdateSavedPrinter(const chromeos::Printer& printer) = 0;
// Remove printer from preferences with the id |printer_id|. Returns true if
// the printer was successfully removed.
virtual bool RemoveSavedPrinter(const std::string& printer_id) = 0;
// Attach |observer| for notification of events. |observer| is expected to
// live on the same thread (UI) as this object. OnPrinter* methods are
// invoked inline so calling RegisterPrinter in response to OnPrinterAdded is
// forbidden.
virtual void AddObserver(SyncedPrintersManager::Observer* observer) = 0;
// Remove |observer| so that it no longer receives notifications. After the
// completion of this method, the |observer| can be safely destroyed.
virtual void RemoveObserver(SyncedPrintersManager::Observer* observer) = 0;
// Returns a DataTypeSyncBridge for the sync client.
virtual PrintersSyncBridge* GetSyncBridge() = 0;
};
} // namespace ash
#endif // CHROME_BROWSER_ASH_PRINTING_SYNCED_PRINTERS_MANAGER_H_
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