view src/hgrunner.h @ 571:012ba1b83328

Show cancel button with progress bar only when running an operation that it makes sense to cancel (we don't really want people cancelling e.g. initial folder scan because it would leave things in an inconsistent state)

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    EasyMercurial

    Based on HgExplorer by Jari Korhonen
    Copyright (c) 2010 Jari Korhonen
    Copyright (c) 2012 Chris Cannam
    Copyright (c) 2012 Queen Mary, University of London
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef HGRUNNER_H
#define HGRUNNER_H

#include "hgaction.h"

#include <QWidget>
#include <QProcess>

class QProgressBar;
class QPushButton;
class QFile;

#include <deque>

class HgRunner : public QWidget
{
    Q_OBJECT

public:
    HgRunner(QString myDirPath, QWidget *parent = 0);
    ~HgRunner();

public slots:
    void requestAction(HgAction action);
    void killCurrentActions(); // kill anything running; clear the queue

signals:
    void commandStarting(HgAction action);
    void commandCompleted(HgAction action, QString stdOut);
    void commandFailed(HgAction action, QString stdErr, QString stdOut);

    /**
     * Emitted when the currently executing command is cancelled. Note
     * that this clears the queue completely, so all subsequent
     * commands are also discarded.
     */
    void commandCancelled(HgAction action);

private slots:
    void started();
    void error(QProcess::ProcessError);
    void finished(int procExitCode, QProcess::ExitStatus procExitStatus);
    void dataReadyStdout();
    void dataReadyStderr();
    void dataReadyPty();

private:
    void checkQueue();
    void startCommand(HgAction action);
    void closeProcInput();
    void killCurrentCommand();

    void noteUsername(QString);
    void noteRealm(QString);
    void getUsername();
    void getPassword();
    bool checkPrompts(QString);

    void openTerminal();
    void closeTerminal();
    
    QString getHgBinaryName();
    QString getSshBinaryName();
    QString getExtensionLocation();

    QString getAuthFilePath();
    QString getAuthKey();
    void pruneOldAuthFiles();

    QString getUnbundledFileName();
    QString unbundleExtension();

    QProgressBar *m_progress;
    QPushButton *m_cancel;

    QStringList addExtensionOptions(QStringList);

    int m_ptyMasterFd;
    int m_ptySlaveFd;
    QString m_ptySlaveFilename;
    QFile *m_ptyFile;
    
    bool m_isRunning;
    QProcess *m_proc;
    QString m_stdout;
    QString m_stderr;

    QString m_userName;
    QString m_realm;

    QString m_myDirPath;
    QString m_extensionPath;

    QString m_authKey;
    QString m_authFilePath;

    typedef std::deque<HgAction> ActionQueue;
    ActionQueue m_queue;
    HgAction m_currentAction;
};

#endif // HGRUNNER_H