src/Gui/CompleteMessageWidget.cpp

   1 /* Copyright (C) 2006 - 2016 Jan Kundrát <jkt@kde.org>
   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 "CompleteMessageWidget.h"
  24 #include <QKeyEvent>
  25 #include <QPropertyAnimation>
  26 #include <QScrollArea>
  27 #include <QScrollBar>
  28 #include <QVBoxLayout>
  29 #include "Gui/EmbeddedWebView.h"
  30 #include "Gui/FindBar.h"
  31 #include "Gui/MessageView.h"
  32 #include "UiUtils/IconLoader.h"
  33
  34 namespace Gui {
  35
  36 CompleteMessageWidget::CompleteMessageWidget(QWidget *parent, QSettings *settings, Plugins::PluginManager *pluginManager)
  37     : QWidget(parent)
  38     , FindBarMixin(this)
  39 {
  40     setWindowIcon(UiUtils::loadIcon(QStringLiteral("mail-mark-read")));
  41     messageView = new MessageView(this, settings, pluginManager);
  42     area = new QScrollArea();
  43     area->setWidget(messageView);
  44     area->setWidgetResizable(true);
  45     QVBoxLayout *layout = new QVBoxLayout(this);
  46     layout->setContentsMargins(0, 0, 0, 0);
  47     layout->addWidget(area);
  48     animator = new QPropertyAnimation(area->verticalScrollBar(), "value", this);
  49     animator->setDuration(250); // the default, maybe play with values
  50     animator->setEasingCurve(QEasingCurve::InOutCubic); // InOutQuad?
  51
  52     layout->addWidget(m_findBar);
  53     connect(messageView, &MessageView::searchRequestedBy,
  54             this, [this](EmbeddedWebView *w) {
  55         searchRequestedBy(w);
  56     });
  57     // because the FindBarMixin is not a QObject, we have to use lambda above, otherwise a cast
  58     // from FindBarMixin * to QObject * fails
  59 }
  60
  61 void CompleteMessageWidget::keyPressEvent(QKeyEvent *ke)
  62 {
  63     if (ke->key() == Qt::Key_Home) {
  64         animator->setEndValue(area->verticalScrollBar()->minimum());
  65         animator->start();
  66     } else if (ke->key() == Qt::Key_End) {
  67         animator->setEndValue(area->verticalScrollBar()->maximum());
  68         animator->start();
  69     } else if (ke->key() == Qt::Key_Space || ke->key() == Qt::Key_Backspace) {
  70         const int delta = area->verticalScrollBar()->pageStep() * (ke->key() == Qt::Key_Backspace ? -1 : 1);
  71         const int start = animator->state() == QAbstractAnimation::Running ? animator->endValue().toInt() : area->verticalScrollBar()->value();
  72         if (animator->state() == QAbstractAnimation::Running) {
  73             animator->stop();
  74         }
  75         animator->setEndValue(qMin(qMax(start + delta, area->verticalScrollBar()->minimum()), area->verticalScrollBar()->maximum()));
  76         animator->start();
  77     } else { // noop, but hey.
  78         QWidget::keyPressEvent(ke);
  79     }
  80 }
  81
  82 }