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// Copyright (c) 2012 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 CHROME_BROWSER_CHROMEOS_DBUS_PRINTER_SERVICE_PROVIDER_H_
#define CHROME_BROWSER_CHROMEOS_DBUS_PRINTER_SERVICE_PROVIDER_H_
#include <string>
#include "base/memory/weak_ptr.h"
#include "chromeos/dbus/services/cros_dbus_service.h"
#include "dbus/exported_object.h"
namespace dbus {
class MethodCall;
class Response;
}
namespace chromeos {
// This class provides printer service for CrosDBusService.
// It detects attached printers and show user help page.
//
// The following methods are exported.
//
// Interface: org.chromium.LibCrosServiceInterface (kLibCrosServiceInterface)
// Method: PrinterAdded (kPrinterAdded)
// Parameters: string:vendor Optional, USB vendor ID.
// string:product Optional, USB product ID.
//
// Display help page to advice user to use Cloud Print.
//
// The returned signal will contain the three values:
//
// This service can be manually tested dbus-send on ChromeOS.
//
// 1. Open a terminal and run the following:
//
// % dbus-send --system --type=method_call
// --dest=org.chromium.LibCrosService /org/chromium/LibCrosService
// org.chromium.LibCrosServiceInterface.PrinterAdded
// string:123 string:456
//
// 2. Go back to ChromeOS and check if new tab with information is opened.
class PrinterServiceProvider
: public CrosDBusService::ServiceProviderInterface {
public:
PrinterServiceProvider();
virtual ~PrinterServiceProvider();
// CrosDBusService::ServiceProviderInterface override.
virtual void Start(
scoped_refptr<dbus::ExportedObject> exported_object) override;
protected:
virtual void ShowCloudPrintHelp(const std::string& vendor,
const std::string& product);
private:
// Called from ExportedObject, when PrinterAdded() is exported as
// a D-Bus method, or failed to be exported.
void OnExported(const std::string& interface_name,
const std::string& method_name,
bool success);
// Invoked when usb printer is detected.
// Called on UI thread from dbus request.
void PrinterAdded(dbus::MethodCall* method_call,
dbus::ExportedObject::ResponseSender response_sender);
scoped_refptr<dbus::ExportedObject> exported_object_;
base::WeakPtrFactory<PrinterServiceProvider> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(PrinterServiceProvider);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_DBUS_PRINTER_SERVICE_PROVIDER_H_
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