grepsearchcontroller.h

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// SPDX-FileCopyrightText: 2014 Anne Jan Brouwer
// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef SRC_GREPSEARCHCONTROLLER_H_
#define SRC_GREPSEARCHCONTROLLER_H_

class GrepSearchController {
public:
  struct FinishOutcome {
    bool restoreCursor; 
    bool discard;       
  };

  auto inGrepMode() const -> bool { return m_mode; }

  void enterGrepMode() { m_mode = true; }

  auto leaveGrepMode() -> bool {
    m_mode = false;
    if (m_busy) {
      m_busy = false;
      m_cancelled = true;
      return true;
    }
    return false;
  }

  void clearGrepMode() { m_mode = false; }

  auto beginSearch() -> bool {
    m_cancelled = false;
    if (!m_busy) {
      m_busy = true;
      return true;
    }
    return false;
  }

  auto cancelSearch() -> bool {
    m_cancelled = true;
    if (m_busy) {
      m_busy = false;
      return true;
    }
    return false;
  }

  auto finishSearch() -> FinishOutcome {
    FinishOutcome outcome{m_busy, m_cancelled};
    m_busy = false;
    m_cancelled = false;
    return outcome;
  }
 
private:
  bool m_mode = false;      
  bool m_busy = false;      
  bool m_cancelled = false; 
};
 
#endif // SRC_GREPSEARCHCONTROLLER_H_