File: mozc_response_parser.h

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// Copyright 2010-2012, Google Inc.
// Copyright 2012~2013, Weng Xuetian <wengxt@gmail.com>
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef MOZC_UNIX_FCITX_MOZC_RESPONSE_PARSER_H_
#define MOZC_UNIX_FCITX_MOZC_RESPONSE_PARSER_H_

#include "base/port.h"

namespace mozc
{
namespace commands
{

class Candidates;
class Input;
class Output;
class Preedit;
class Result;

}  // namespace commands
}  // namespace mozc

namespace mozc
{

namespace fcitx
{

class FcitxMozc;

// This class parses IPC response from mozc_server (mozc::commands::Output) and
// updates the FCITX UI.
class MozcResponseParser
{
public:
    MozcResponseParser();
    ~MozcResponseParser();

    // Parses a response from Mozc server and sets persed information on fcitx_mozc
    // object. Returns true if response.consumed() is true. fcitx_mozc must be non
    // NULL. This function does not take ownership of fcitx_mozc.
    bool ParseResponse ( const mozc::commands::Output &response,
                         FcitxMozc *fcitx_mozc ) const;

    // Setter for use_annotation_. If use_annotation_ is true, ParseCandidates()
    // uses annotation infomation.
    void set_use_annotation ( bool use_annotation );

private:
    void UpdateDeletionRange(const mozc::commands::Output& response, FcitxMozc* fcitx_mozc) const;
    void LaunchTool(const mozc::commands::Output& response, FcitxMozc* fcitx_mozc) const;
    void ExecuteCallback(const mozc::commands::Output& response, FcitxMozc* fcitx_mozc) const;
    void ParseResult ( const mozc::commands::Result &result,
                       FcitxMozc *fcitx_mozc ) const;
    void ParseCandidates ( const mozc::commands::Candidates &candidates,
                           FcitxMozc *fcitx_mozc ) const;
    void ParsePreedit ( const mozc::commands::Preedit &preedit,
                        uint32 position,
                        FcitxMozc *fcitx_mozc ) const;

    bool use_annotation_;

    DISALLOW_COPY_AND_ASSIGN ( MozcResponseParser );
};

}  // namespace fcitx

}  // namespace mozc

#endif  // MOZC_UNIX_FCITX_MOZC_RESPONSE_PARSER_H_