view src/confirmcommentdialog.cpp @ 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.
*/

#include "confirmcommentdialog.h"
#include "common.h"
#include "debug.h"

#include <QMessageBox>
#include <QInputDialog>
#include <QGridLayout>
#include <QLabel>
#include <QTextEdit>
#include <QDialogButtonBox>

ConfirmCommentDialog::ConfirmCommentDialog(QWidget *parent,
                                           QString title,
                                           QString introText,
                                           QString initialComment,
                                           QString okButtonText) :
    QDialog(parent)
{
    setWindowTitle(title);

    QGridLayout *layout = new QGridLayout;
    setLayout(layout);
    QLabel *label = new QLabel(introText);
    label->setWordWrap(true);
    layout->addWidget(label, 0, 0);

    m_textEdit = new QTextEdit;
    m_textEdit->setAcceptRichText(false);
    m_textEdit->document()->setPlainText(initialComment);
    m_textEdit->setMinimumWidth(360);
    connect(m_textEdit, SIGNAL(textChanged()), this, SLOT(commentChanged()));
    layout->addWidget(m_textEdit, 1, 0);

    QDialogButtonBox *bbox = new QDialogButtonBox(QDialogButtonBox::Ok |
                                                  QDialogButtonBox::Cancel);
    layout->addWidget(bbox, 2, 0);
    m_ok = bbox->button(QDialogButtonBox::Ok);
    m_ok->setDefault(true);
    m_ok->setEnabled(initialComment != "");
    m_ok->setText(okButtonText);
    bbox->button(QDialogButtonBox::Cancel)->setAutoDefault(false);

    connect(bbox, SIGNAL(accepted()), this, SLOT(accept()));
    connect(bbox, SIGNAL(rejected()), this, SLOT(reject()));
}

void ConfirmCommentDialog::commentChanged()
{
    m_ok->setEnabled(getComment() != "");
}

QString ConfirmCommentDialog::getComment() const
{
/*
    DEBUG << "ConfirmCommentDialog: as html is:" << endl;
    DEBUG << m_textEdit->document()->toHtml() << endl;
    DEBUG << "ConfirmCommentDialog: as plain text is:" << endl;
*/
    QString t = m_textEdit->document()->toPlainText();
/*
    DEBUG << t << endl;
    DEBUG << "Characters: " << endl;
    for (int i = 0; i < t.length(); ++i) DEBUG << t[i].unicode();
    DEBUG << endl;
*/
    return t;
}

QString ConfirmCommentDialog::buildFilesText(QString intro, QStringList files)
{
    QString text;

    if (intro == "") text = "<qt>";
    else text = "<qt>" + intro + "<p>";

    text += "<code>";
    if (files.empty()) {
        text += "&nbsp;&nbsp;&nbsp;</code>";
        text += tr("(no files: metadata only)");
    } else {
        foreach (QString file, files) {
            text += "&nbsp;&nbsp;&nbsp;" + xmlEncode(file) + "<br>";
        }
        text += "</code></qt>";
    }

    return text;
}

bool ConfirmCommentDialog::confirm(QWidget *parent,
                                   QString title,
                                   QString head,
                                   QString text,
                                   QString okButtonText)
{
    QMessageBox box(QMessageBox::Question,
                    title,
                    head,
                    QMessageBox::Cancel,
                    parent);

    box.setInformativeText(text);

    QPushButton *ok = box.addButton(QMessageBox::Ok);
    ok->setText(okButtonText);
    box.setDefaultButton(QMessageBox::Ok);
    if (box.exec() == -1) return false;
    return box.standardButton(box.clickedButton()) == QMessageBox::Ok;
}

bool ConfirmCommentDialog::confirmDangerous(QWidget *parent,
                                            QString title,
                                            QString head,
                                            QString text,
                                            QString okButtonText)
{
    QMessageBox box(QMessageBox::Warning,
                    title,
                    head,
                    QMessageBox::Cancel,
                    parent);

    box.setInformativeText(text);

    QPushButton *ok = box.addButton(QMessageBox::Ok);
    ok->setText(okButtonText);
    box.setDefaultButton(QMessageBox::Cancel);
    if (box.exec() == -1) return false;
    return box.standardButton(box.clickedButton()) == QMessageBox::Ok;
}

bool ConfirmCommentDialog::confirmFilesAction(QWidget *parent,
                                              QString title,
                                              QString introText,
                                              QString introTextWithCount,
                                              QStringList files,
                                              QString okButtonText)
{
    QString text;
    if (files.size() <= 10) {
        text = buildFilesText(introText, files);
    } else {
        text = "<qt>" + introTextWithCount + "</qt>";
    }
    return confirm(parent, title, text, "", okButtonText);
}

bool ConfirmCommentDialog::confirmDangerousFilesAction(QWidget *parent,
                                                       QString title,
                                                       QString introText,
                                                       QString introTextWithCount,
                                                       QStringList files,
                                                       QString okButtonText)
{
    QString text;
    if (files.size() <= 10) {
        text = buildFilesText(introText, files);
    } else {
        text = "<qt>" + introTextWithCount + "</qt>";
    }
    return confirmDangerous(parent, title, text, "", okButtonText);
}

bool ConfirmCommentDialog::confirmAndGetShortComment(QWidget *parent,
                                                     QString title,
                                                     QString introText,
                                                     QString introTextWithCount,
                                                     QStringList files,
                                                     QString &comment,
                                                     QString okButtonText)
{
    return confirmAndComment(parent, title, introText,
                             introTextWithCount, files, comment, false,
                             okButtonText);
}

bool ConfirmCommentDialog::confirmAndGetLongComment(QWidget *parent,
                                                    QString title,
                                                    QString introText,
                                                    QString introTextWithCount,
                                                    QStringList files,
                                                    QString &comment,
                                                    QString okButtonText)
{
    return confirmAndComment(parent, title, introText,
                             introTextWithCount, files, comment, true,
                             okButtonText);
}

bool ConfirmCommentDialog::confirmAndComment(QWidget *parent,
                                             QString title,
                                             QString introText,
                                             QString introTextWithCount,
                                             QStringList files,
                                             QString &comment,
                                             bool longComment, 
                                             QString okButtonText)
{
    QString text;
    if (files.size() <= 10) {
        text = buildFilesText(introText, files);
    } else {
        text = "<qt>" + introTextWithCount;
    }
    text += tr("<p>Please enter your comment:</qt>");
    return confirmAndComment(parent, title, text, comment, longComment,
                             okButtonText);
}

bool ConfirmCommentDialog::confirmAndGetShortComment(QWidget *parent,
                                                     QString title,
                                                     QString introText,
                                                     QString &comment,
                                                     QString okButtonText)
{
    return confirmAndComment(parent, title, introText, comment, false,
                             okButtonText);
}

bool ConfirmCommentDialog::confirmAndGetLongComment(QWidget *parent,
                                                    QString title,
                                                    QString introText,
                                                    QString &comment,
                                                    QString okButtonText)
{
    return confirmAndComment(parent, title, introText, comment, true,
                             okButtonText);
}

bool ConfirmCommentDialog::confirmAndComment(QWidget *parent,
                                             QString title,
                                             QString introText,
                                             QString &comment,
                                             bool longComment,
                                             QString okButtonText)
{
    bool ok = false;
    if (!longComment) {
        QInputDialog d(parent);
        d.setWindowTitle(title);
        d.setLabelText(introText);
        d.setTextValue(comment);
        d.setOkButtonText(okButtonText);
        d.setTextEchoMode(QLineEdit::Normal);
        if (d.exec() == QDialog::Accepted) {
            comment = d.textValue();
            ok = true;
        }
    } else {
        ConfirmCommentDialog d(parent, title, introText, comment, okButtonText);
        if (d.exec() == QDialog::Accepted) {
            comment = d.getComment();
            ok = true;
        }
    }

    return ok;
}