Revert 179842

chromeos/ime/ibus_bridge.h

-// 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 CHROMEOS_IME_IBUS_BRIDGE_H_
-#define CHROMEOS_IME_IBUS_BRIDGE_H_
-
-#include <string>
-#include "base/basictypes.h"
-#include "base/memory/singleton.h"
-
-namespace chromeos {
-class IBusInputContextHandlerInterface;
-class IBusEngineHandlerInterface;
-
-namespace ibus {
-class IBusPanelCandidateWindowHandlerInterface;
-class IBusPanelPropertyHandlerInterface;
-}  // namespace ibus
-
-// IBusBridge provides access of each IME related handler. This class is used
-// for IME implementation without ibus-daemon. The legacy ibus IME communicates
-// their engine with dbus protocol, but new implementation doesn't. Instead of
-// dbus communcation, new implementation calls target service(e.g. PanelService
-// or EngineService) directly by using this class. IBusBridge is managed as
-// singleton object.
-class IBusBridge {
- public:
-  // Returns IBusBridge instance.
-  static IBusBridge* GetInstance();
-
-  // Returns current InputContextHandler. This function returns NULL if input
-  // context is not ready to use.
-  IBusInputContextHandlerInterface* input_context_handler() const {
-    return input_context_handler_;
-  }
-
-  // Updates current InputContextHandler. If there is no active input context,
-  // pass NULL for |handler|. Caller must release |handler|.
-  void set_input_context_handler(IBusInputContextHandlerInterface* handler) {
-    input_context_handler_ = handler;
-  }
-
-  // Returns current EngineHandler. This function returns NULL if current engine
-  // is not ready to use.
-  IBusEngineHandlerInterface* engine_handler() const {
-    return engine_handler_;
-  }
-
-  // Updates current EngineHandler. If there is no active engine service, pass
-  // NULL for |handler|. Caller must release |handler|.
-  void set_engine_handler(IBusEngineHandlerInterface* handler) {
-    engine_handler_ = handler;
-  }
-
-  // Returns current CandidateWindowHandler. This function returns NULL if
-  // current candidate window is not ready to use.
-  ibus::IBusPanelCandidateWindowHandlerInterface*
-      candidate_window_handler() const {
-    return candidate_window_handler_;
-  }
-
-  // Updates current CandidatWindowHandler. If there is no active candidate
-  // window service, pass NULL for |handler|. Caller must release |handler|.
-  void set_candidate_window_handler(
-      ibus::IBusPanelCandidateWindowHandlerInterface* handler) {
-    candidate_window_handler_ = handler;
-  }
-
-  // Returns current PropertyHandler. This function returns NULL if panel window
-  // is not ready to use.
-  ibus::IBusPanelPropertyHandlerInterface* panel_handler() const {
-    return panel_handler_;
-  }
-
-  // Updates current PropertyHandler. If there is no active property service,
-  // pass NULL for |handler|. Caller must release |handler|.
-  void set_panel_handler(ibus::IBusPanelPropertyHandlerInterface* handler) {
-    panel_handler_ = handler;
-  }
-
- private:
-  // Singleton implementation. Use GetInstance for getting instance.
-  IBusBridge();
-  friend struct DefaultSingletonTraits<IBusBridge>;
-
-  IBusInputContextHandlerInterface* input_context_handler_;
-  IBusEngineHandlerInterface* engine_handler_;
-  ibus::IBusPanelCandidateWindowHandlerInterface* candidate_window_handler_;
-  ibus::IBusPanelPropertyHandlerInterface* panel_handler_;
-
-  DISALLOW_COPY_AND_ASSIGN(IBusBridge);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROMEOS_IME_IBUS_BRIDGE_H_