src/Gui/LoadablePartWidget.cpp

   1 /* Copyright (C) 2006 - 2014 Jan Kundrát <jkt@flaska.net>
   2
   3    This file is part of the Trojita Qt IMAP e-mail client,
   4    http://trojita.flaska.net/
   5
   6    This program is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU General Public License as
   8    published by the Free Software Foundation; either version 2 of
   9    the License or (at your option) version 3 or any later version
  10    accepted by the membership of KDE e.V. (or its successor approved
  11    by the membership of KDE e.V.), which shall act as a proxy
  12    defined in Section 14 of version 3 of the license.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22 #include "LoadablePartWidget.h"
  23 #include "Gui/MessageView.h" // so that the compiler knows that it's a QObject
  24 #include "Imap/Model/ItemRoles.h"
  25 #include "UiUtils/Formatting.h"
  26
  27 #include <QPushButton>
  28
  29 namespace Gui
  30 {
  31
  32 LoadablePartWidget::LoadablePartWidget(QWidget *parent, Imap::Network::MsgPartNetAccessManager *manager, const QModelIndex &part,
  33                                        PartWidgetFactory *factory, int recursionDepth,
  34                                        const UiUtils::PartLoadingOptions loadingMode):
  35     QStackedWidget(parent), manager(manager), partIndex(part), m_factory(factory),
  36     m_recursionDepth(recursionDepth), m_loadingMode(loadingMode), realPart(0), loadButton(0), m_loadOnShow(false)
  37 {
  38     Q_ASSERT(partIndex.isValid());
  39
  40     QString mimeType = partIndex.data(Imap::Mailbox::RolePartMimeType).toString().toLower();
  41
  42     if ((loadingMode & UiUtils::PART_IS_HIDDEN) ||
  43             (loadingMode & UiUtils::PART_IGNORE_CLICKTHROUGH) ||
  44             partIndex.data(Imap::Mailbox::RoleIsFetched).toBool()) {
  45         m_loadOnShow = true;
  46     } else {
  47         loadButton = new QPushButton(tr("Load %1 (%2)").arg(partIndex.data(Imap::Mailbox::RolePartMimeType).toString(),
  48                                      UiUtils::Formatting::prettySize(partIndex.data(Imap::Mailbox::RolePartOctets).toUInt())),
  49                                      this);
  50         connect(loadButton, &QAbstractButton::clicked, this, &LoadablePartWidget::loadClicked);
  51         addWidget(loadButton);
  52     }
  53 }
  54
  55 void LoadablePartWidget::loadClicked()
  56 {
  57     if (!partIndex.isValid()) {
  58         if (loadButton) {
  59             loadButton->setEnabled(false);
  60         }
  61         return;
  62     }
  63     if (loadButton) {
  64         loadButton->deleteLater();
  65         loadButton = 0;
  66     }
  67
  68     // We have to disable any flags which might cause recursion here
  69     realPart = m_factory->walk(partIndex, m_recursionDepth + 1,
  70                                (m_loadingMode | UiUtils::PART_IGNORE_CLICKTHROUGH |
  71                                 UiUtils::PART_IGNORE_LOAD_ON_SHOW)
  72                                ^ UiUtils::PART_IS_HIDDEN);
  73     addWidget(realPart);
  74     setCurrentIndex(1);
  75 }
  76
  77 QString LoadablePartWidget::quoteMe() const
  78 {
  79     AbstractPartWidget *part = dynamic_cast<AbstractPartWidget*>(realPart);
  80     return part ? part->quoteMe() : QString();
  81 }
  82
  83 void LoadablePartWidget::showEvent(QShowEvent *event)
  84 {
  85     QStackedWidget::showEvent(event);
  86     if (m_loadOnShow) {
  87         m_loadOnShow = false;
  88         loadClicked();
  89     }
  90 }
  91
  92 void LoadablePartWidget::reloadContents()
  93 {
  94     if (AbstractPartWidget *w = dynamic_cast<AbstractPartWidget*>(realPart))
  95         w->reloadContents();
  96 }
  97
  98 }