chromeos/dbus/introspectable_client.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROMEOS_DBUS_INTROSPECTABLE_CLIENT_H_
   6 #define CHROMEOS_DBUS_INTROSPECTABLE_CLIENT_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/callback.h"
  12 #include "chromeos/chromeos_export.h"
  13 #include "chromeos/dbus/dbus_client.h"
  14 #include "dbus/object_path.h"
  15
  16 namespace chromeos {
  17
  18 // IntrospectableClient is used to retrieve the D-Bus introspection data
  19 // from a remote object.
  20 class CHROMEOS_EXPORT IntrospectableClient : public DBusClient {
  21  public:
  22   ~IntrospectableClient() override;
  23
  24   // The IntrospectCallback is used for the Introspect() method. It receives
  25   // four arguments, the first two are the |service_name| and |object_path|
  26   // of the remote object being introspected, the third is the |xml_data| of
  27   // the object as described in
  28   // http://dbus.freedesktop.org/doc/dbus-specification.html, the fourth
  29   // |success| indicates whether the request succeeded.
  30   typedef base::Callback<void(const std::string&, const dbus::ObjectPath&,
  31                               const std::string&, bool)> IntrospectCallback;
  32
  33   // Retrieves introspection data from the remote object on service name
  34   // |service_name| with object path |object_path|, calling |callback| with
  35   // the XML-formatted data received.
  36   virtual void Introspect(const std::string& service_name,
  37                           const dbus::ObjectPath& object_path,
  38                           const IntrospectCallback& callback) = 0;
  39
  40   // Parses XML-formatted introspection data returned by
  41   // org.freedesktop.DBus.Introspectable.Introspect and returns the list of
  42   // interface names declared within.
  43   static std::vector<std::string> GetInterfacesFromIntrospectResult(
  44       const std::string& xml_data);
  45
  46   // Creates the instance
  47   static IntrospectableClient* Create();
  48
  49  protected:
  50   IntrospectableClient();
  51
  52  private:
  53   DISALLOW_COPY_AND_ASSIGN(IntrospectableClient);
  54 };
  55
  56 }  // namespace chromeos
  57
  58 #endif  // CHROMEOS_DBUS_INTROSPECTABLE_CLIENT_H_