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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.
#include "chromeos/ime/ibus_bridge.h"
#include <map>
#include "base/logging.h"
#include "base/memory/singleton.h"
namespace chromeos {
static IBusBridge* g_ibus_bridge = NULL;
// An implementation of IBusBridge.
class IBusBridgeImpl : public IBusBridge {
public:
IBusBridgeImpl()
: input_context_handler_(NULL),
engine_handler_(NULL),
candidate_window_handler_(NULL) {
}
virtual ~IBusBridgeImpl() {
}
// IBusBridge override.
virtual IBusInputContextHandlerInterface*
GetInputContextHandler() const OVERRIDE {
return input_context_handler_;
}
// IBusBridge override.
virtual void SetInputContextHandler(
IBusInputContextHandlerInterface* handler) OVERRIDE {
input_context_handler_ = handler;
}
// IBusBridge override.
virtual IBusEngineHandlerInterface* GetEngineHandler() const OVERRIDE {
return engine_handler_;
}
// IBusBridge override.
virtual void SetEngineHandler(IBusEngineHandlerInterface* handler) OVERRIDE {
engine_handler_ = handler;
}
// IBusBridge override.
virtual IBusPanelCandidateWindowHandlerInterface*
GetCandidateWindowHandler() const OVERRIDE {
return candidate_window_handler_;
}
// IBusBridge override.
virtual void SetCandidateWindowHandler(
IBusPanelCandidateWindowHandlerInterface* handler) OVERRIDE {
candidate_window_handler_ = handler;
}
virtual void SetCreateEngineHandler(
const std::string& engine_id,
const CreateEngineHandler& handler) OVERRIDE {
create_engine_handler_map_[engine_id] = handler;
}
// IBusBridge override.
virtual void UnsetCreateEngineHandler(const std::string& engine_id) OVERRIDE {
create_engine_handler_map_.erase(engine_id);
}
// IBusBridge override.
virtual void CreateEngine(const std::string& engine_id) OVERRIDE {
// TODO(nona): Change following condition to DCHECK once all legacy IME is
// migrated to extension IME.
if (create_engine_handler_map_[engine_id].is_null())
return;
create_engine_handler_map_[engine_id].Run();
}
private:
IBusInputContextHandlerInterface* input_context_handler_;
IBusEngineHandlerInterface* engine_handler_;
IBusPanelCandidateWindowHandlerInterface* candidate_window_handler_;
std::map<std::string, CreateEngineHandler> create_engine_handler_map_;
DISALLOW_COPY_AND_ASSIGN(IBusBridgeImpl);
};
///////////////////////////////////////////////////////////////////////////////
// IBusBridge
IBusBridge::IBusBridge() {
}
IBusBridge::~IBusBridge() {
}
// static.
void IBusBridge::Initialize() {
if (!g_ibus_bridge)
g_ibus_bridge = new IBusBridgeImpl();
}
// static.
void IBusBridge::Shutdown() {
delete g_ibus_bridge;
g_ibus_bridge = NULL;
}
// static.
IBusBridge* IBusBridge::Get() {
return g_ibus_bridge;
}
} // namespace chromeos
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