src/dolphindockwidget.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2010 Peter Penz <peter.penz19@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "dolphindockwidget.h"
   8
   9 #include <QEvent>
  10 #include <QStyle>
  11
  12 namespace
  13 {
  14 // Disable the 'Floatable' feature, i.e., the possibility to drag the
  15 // dock widget out of the main window. This works around problems like
  16 // https://bugs.kde.org/show_bug.cgi?id=288629
  17 // https://bugs.kde.org/show_bug.cgi?id=322299
  18 const QDockWidget::DockWidgetFeatures DefaultDockWidgetFeatures = QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable;
  19 }
  20
  21 // Empty titlebar for the dock widgets when "Lock Layout" has been activated.
  22 class DolphinDockTitleBar : public QWidget
  23 {
  24     Q_OBJECT
  25
  26 public:
  27     explicit DolphinDockTitleBar(QWidget *parent = nullptr)
  28         : QWidget(parent)
  29     {
  30     }
  31     ~DolphinDockTitleBar() override
  32     {
  33     }
  34
  35     QSize minimumSizeHint() const override
  36     {
  37         return QSize(0, 0);
  38     }
  39
  40     QSize sizeHint() const override
  41     {
  42         return minimumSizeHint();
  43     }
  44 };
  45
  46 DolphinDockWidget::DolphinDockWidget(const QString &title, QWidget *parent, Qt::WindowFlags flags)
  47     : QDockWidget(title, parent, flags)
  48     , m_locked(false)
  49     , m_dockTitleBar(nullptr)
  50 {
  51     setFeatures(DefaultDockWidgetFeatures);
  52 }
  53
  54 DolphinDockWidget::~DolphinDockWidget()
  55 {
  56 }
  57
  58 void DolphinDockWidget::setLocked(bool lock)
  59 {
  60     if (lock != m_locked) {
  61         m_locked = lock;
  62
  63         if (lock) {
  64             if (!m_dockTitleBar) {
  65                 m_dockTitleBar = new DolphinDockTitleBar(this);
  66             }
  67             setTitleBarWidget(m_dockTitleBar);
  68             setFeatures(QDockWidget::DockWidgetClosable);
  69         } else {
  70             setTitleBarWidget(nullptr);
  71             setFeatures(DefaultDockWidgetFeatures);
  72         }
  73     }
  74 }
  75
  76 bool DolphinDockWidget::isLocked() const
  77 {
  78     return m_locked;
  79 }
  80
  81 bool DolphinDockWidget::event(QEvent *event)
  82 {
  83     switch (event->type()) {
  84     case QEvent::Show:
  85     case QEvent::Hide:
  86         if (event->spontaneous()) {
  87             // The Dolphin window has been minimized or restored. We do not want this to be interpreted like a user was toggling the visibility of this widget.
  88             // We return here so no QDockWidget::visibilityChanged() signal is emitted. This does not seem to happen either way on Wayland.
  89             return true;
  90         }
  91         [[fallthrough]];
  92     default:
  93         return QDockWidget::event(event);
  94     }
  95 }
  96
  97 #include "dolphindockwidget.moc"
  98 #include "moc_dolphindockwidget.cpp"