src/Gui/OnePanelAtTimeWidget.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
  23 #include "OnePanelAtTimeWidget.h"
  24 #include <QAction>
  25 #include <QMainWindow>
  26 #include <QToolBar>
  27 #include "CompleteMessageWidget.h"
  28 #include "MailBoxTreeView.h"
  29 #include "MessageListWidget.h"
  30 #include "MsgListView.h"
  31
  32 namespace Gui {
  33
  34 OnePanelAtTimeWidget::OnePanelAtTimeWidget(QMainWindow *mainWindow, MailBoxTreeView *mboxTree, MessageListWidget *msgListWidget,
  35                                            CompleteMessageWidget *messageWidget, QToolBar *toolbar, QAction *actionGoBack):
  36     QStackedWidget(mainWindow), m_mainWindow(mainWindow), m_mboxTree(mboxTree), m_msgListWidget(msgListWidget),
  37     m_messageWidget(messageWidget), m_toolbar(toolbar), m_actionGoBack(actionGoBack)
  38 {
  39     addWidget(m_mboxTree);
  40     addWidget(m_msgListWidget);
  41     addWidget(m_messageWidget);
  42     setCurrentWidget(m_mboxTree);
  43
  44     connect(m_msgListWidget->tree, &QAbstractItemView::clicked, this, &OnePanelAtTimeWidget::slotOneAtTimeGoDeeper);
  45     connect(m_msgListWidget->tree, &QAbstractItemView::activated, this, &OnePanelAtTimeWidget::slotOneAtTimeGoDeeper);
  46     connect(m_mboxTree, &QAbstractItemView::clicked, this, &OnePanelAtTimeWidget::slotOneAtTimeGoDeeper);
  47     connect(m_mboxTree, &QAbstractItemView::activated, this, &OnePanelAtTimeWidget::slotOneAtTimeGoDeeper);
  48     connect(m_actionGoBack.data(), &QAction::triggered, this, &OnePanelAtTimeWidget::slotOneAtTimeGoBack);
  49
  50     // The list view is configured to auto-emit activated(QModelIndex) after a short while when the user has navigated
  51     // to an index through keyboard. Of course, this doesn't play terribly well with this layout.
  52     m_msgListWidget->tree->setAutoActivateAfterKeyNavigation(false);
  53
  54     m_toolbar->insertAction(m_toolbar->actions().isEmpty() ? nullptr : m_toolbar->actions()[0], m_actionGoBack);
  55     addAction(m_actionGoBack);
  56 }
  57
  58 OnePanelAtTimeWidget::~OnePanelAtTimeWidget()
  59 {
  60     while (count()) {
  61         QWidget *w = widget(0);
  62         removeWidget(w);
  63         w->show();
  64     }
  65     m_msgListWidget->tree->setAutoActivateAfterKeyNavigation(true);
  66
  67     if (m_toolbar) {
  68         m_toolbar->removeAction(m_actionGoBack);
  69     }
  70
  71     // The size of the widgets is still wrong. Let's fix this.
  72     if (m_mainWindow->isMaximized()) {
  73         m_mainWindow->showNormal();
  74         m_mainWindow->showMaximized();
  75     } else {
  76         m_mainWindow->resize(m_mainWindow->sizeHint());
  77     }
  78 }
  79
  80 void OnePanelAtTimeWidget::slotOneAtTimeGoBack()
  81 {
  82     if (currentIndex() > 0)
  83         setCurrentIndex(currentIndex() - 1);
  84
  85     m_actionGoBack->setEnabled(currentIndex() > 0);
  86 }
  87
  88 void OnePanelAtTimeWidget::slotOneAtTimeGoDeeper()
  89 {
  90     QWidget *w = qobject_cast<QWidget*>(sender());
  91     Q_ASSERT(w);
  92
  93     // Careful here: some of the events are, unfortunately, emitted twice (one for clicked(), another time for activated())
  94     if (!w->isVisible())
  95         return;
  96
  97     if (currentIndex() < count() - 1)
  98         setCurrentIndex(currentIndex() + 1);
  99
 100     m_actionGoBack->setEnabled(currentIndex() > 0);
 101 }
 102
 103 }