File indexing completed on 2024-06-16 05:01:31

 /* Copyright (C) 2006 - 2014 Jan Kundrát <jkt@flaska.net>
    Copyright (C) 2014 Thomas Lübking <thomas.luebking@gmail.com>
 
    This file is part of the Trojita Qt IMAP e-mail client,
    http://trojita.flaska.net/
 
    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) version 3 or any later version
    accepted by the membership of KDE e.V. (or its successor approved
    by the membership of KDE e.V.), which shall act as a proxy
    defined in Section 14 of version 3 of the license.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "TaskProgressIndicator.h"
 #include <QApplication>
 #include <QMouseEvent>
 #include <QTimer>
 #include "Gui/Spinner.h"
 #include "Imap/Model/Model.h"
 #include "Imap/Model/VisibleTasksModel.h"
 
 namespace Gui
 {
 
 TaskProgressIndicator::TaskProgressIndicator(QWidget *parent) :
     Spinner(parent), m_busyCursorTrigger(new QTimer(this)), m_busy(false)
 {
     connect(m_busyCursorTrigger, &QTimer::timeout, []() {
         QApplication::setOverrideCursor(Qt::BusyCursor);
     });
     m_busyCursorTrigger->setSingleShot(true);
     m_busyCursorTrigger->setInterval(666);
 
     setType(Spinner::Elastic);
     setContext(Spinner::Throbber);
 }
 
 /** @short Connect to the specified IMAP model as the source of the activity information */
 void TaskProgressIndicator::setImapModel(Imap::Mailbox::Model *model)
 {
     if (model) {
         m_visibleTasksModel = new Imap::Mailbox::VisibleTasksModel(model, model->taskModel());
         connect(m_visibleTasksModel.data(), &QAbstractItemModel::layoutChanged, this, &TaskProgressIndicator::updateActivityIndication);
         connect(m_visibleTasksModel.data(), &QAbstractItemModel::modelReset, this, &TaskProgressIndicator::updateActivityIndication);
         connect(m_visibleTasksModel.data(), &QAbstractItemModel::rowsInserted, this, &TaskProgressIndicator::updateActivityIndication);
         connect(m_visibleTasksModel.data(), &QAbstractItemModel::rowsRemoved, this, &TaskProgressIndicator::updateActivityIndication);
     }
 }
 
 /** @short Reflect a possible change in the activity in the GUI */
 void TaskProgressIndicator::updateActivityIndication()
 {
     if (!m_visibleTasksModel)
         return;
 
     bool busy = m_visibleTasksModel->hasChildren();
     if (!m_busy && busy) {
         start();
         if (!m_busyCursorTrigger->isActive()) {
             // do NOT restart, we don't want to prolong this delay
             m_busyCursorTrigger->start();
         }
     } else if (m_busy && !busy) {
         stop();
         if (!m_busyCursorTrigger->isActive()) {
             // don't restore unless we've alredy set it
             QApplication::restoreOverrideCursor();
         }
         // don't cause future timeout
         m_busyCursorTrigger->stop();
     }
 
     if (busy) {
         setToolTip(tr("%n ongoing actions", 0, m_visibleTasksModel->rowCount()));
     } else {
         setToolTip(tr("IMAP connection idle"));
     }
 
     m_busy = busy;
 }
 
 }