/****************************************************************************
**
** Copyright (C) 2003-2006 Frank Hemer <frank@hemer.org>,
**                         Tilo Riemer <riemer@crossvc.com>
**
**
**----------------------------------------------------------------------------
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**----------------------------------------------------------------------------
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** CrossVC is released under the terms of GPL also.
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*****************************************************************************/

#include "config.h"

#include "DirConnector.h"
#include "qapplication.h"
#include "ExtTimer.h"

DirConnector::DirConnector() : suspended(false), m_running(false), m_lock(false) {

}

DirConnector::~DirConnector() {

}

DirBase * DirConnector::checkEvent(QString& file,bool& deleted) {

  if ( dirQueue.empty()) return NULL;
  else {
    const dirData * first = dirQueue.front();
    dirQueue.erase(dirQueue.begin());
    DirBase * dir = first->dir;
    file = first->fileName;
    deleted = first->deleted;
    delete first;
    return dir;
  }
}

bool DirConnector::addToDirQueue(DirBase * addDir, QString& fileName, bool& deleted) {
  if (suspended) return FALSE;
  dirData * dd = new dirData();
  dd->dir = addDir;
  dd->fileName = fileName;
  dd->deleted = deleted;
  QValueVector<dirData*>::const_iterator it = qFind( dirQueue.begin(), dirQueue.end(), dd );//only add if not jet in queue
  if ( it == dirQueue.end()) {
    dirQueue.push_back(dd);
    if (!m_lock) {
      emit eventReceived();
    }
    return TRUE;
  } else delete dd;
  return FALSE;
}

void DirConnector::clearDirQueue() {
  dirQueue.clear();
}

void DirConnector::suspend() {
  qApp->processEvents();//first clear pending events
  suspended = true;
}

void DirConnector::resume() {
  qApp->processEvents();//first clear pending events
  suspended = false;
}

void DirConnector::lock() {
  m_lock = true;
}

void DirConnector::unlock() {
  m_lock = false;
  if (!dirQueue.empty()) {
    CExtTimer::singleShot(0,this,SLOT(emitNotification()));
  }
}

void DirConnector::setRunning( bool state) {
  m_running = state;
}

bool DirConnector::isRunning() {
  return m_running;
}

void DirConnector::emitNotification() {
  emit eventReceived();
}