src/filebrowse/searchengine.cpp

   1 #include "searchengine.h"
   2 #include <QDateTime>
   3 #include "searchworker.h"
   4 #include "globals.h"
   5
   6 SearchEngine::SearchEngine(QObject *parent) :
   7     QObject(parent)
   8 {
   9     m_dir = "";
  10     m_searchWorker = new SearchWorker;
  11     connect(m_searchWorker, SIGNAL(matchFound(QString)), this, SLOT(emitMatchFound(QString)));
  12
  13     // pass worker end signals to QML
  14     connect(m_searchWorker, SIGNAL(progressChanged(QString)),
  15             this, SIGNAL(progressChanged(QString)));
  16     connect(m_searchWorker, SIGNAL(done()), this, SIGNAL(workerDone()));
  17     connect(m_searchWorker, SIGNAL(errorOccurred(QString, QString)),
  18             this, SIGNAL(workerErrorOccurred(QString, QString)));
  19
  20     connect(m_searchWorker, SIGNAL(started()), this, SIGNAL(runningChanged()));
  21     connect(m_searchWorker, SIGNAL(finished()), this, SIGNAL(runningChanged()));
  22 }
  23
  24 SearchEngine::~SearchEngine()
  25 {
  26     // is this the way to force stop the worker thread?
  27     m_searchWorker->cancel(); // stop possibly running background thread
  28     m_searchWorker->wait();   // wait until thread stops
  29     delete m_searchWorker;    // delete it
  30 }
  31
  32 void SearchEngine::setDir(QString dir)
  33 {
  34     if (m_dir == dir)
  35         return;
  36
  37     m_dir = dir;
  38
  39     emit dirChanged();
  40 }
  41
  42 bool SearchEngine::running() const
  43 {
  44     return m_searchWorker->isRunning();
  45 }
  46
  47 void SearchEngine::search(QString searchTerm)
  48 {
  49     // if search term is not empty, then restart search
  50     if (!searchTerm.isEmpty()) {
  51         m_searchWorker->cancel();
  52         m_searchWorker->wait();
  53         m_searchWorker->startSearch(m_dir, searchTerm);
  54     }
  55 }
  56
  57 void SearchEngine::cancel()
  58 {
  59     m_searchWorker->cancel();
  60 }
  61
  62 void SearchEngine::emitMatchFound(QString fullpath)
  63 {
  64     QFileInfo info(fullpath);
  65     emit matchFound(fullpath, info.fileName(), info.absoluteDir().absolutePath(),
  66                     infoToIconName(info), infoToFileKind(info));
  67 }