src/dolphintabbar.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2014 Emmanuel Pescosta <emmanuelpescosta099@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "dolphintabbar.h"
   8
   9 #include <KLocalizedString>
  10
  11 #include <QDragEnterEvent>
  12 #include <QMenu>
  13 #include <QMimeData>
  14 #include <QTimer>
  15
  16 class PreventFocusWhileHidden : public QObject
  17 {
  18 public:
  19     PreventFocusWhileHidden(QObject *parent)
  20         : QObject(parent){};
  21
  22 protected:
  23     bool eventFilter(QObject *obj, QEvent *ev) override
  24     {
  25         switch (ev->type()) {
  26         case QEvent::Hide:
  27             static_cast<QWidget *>(obj)->setFocusPolicy(Qt::NoFocus);
  28             return false;
  29         case QEvent::Show:
  30             static_cast<QWidget *>(obj)->setFocusPolicy(Qt::TabFocus);
  31             return false;
  32         default:
  33             return false;
  34         }
  35     };
  36 };
  37
  38 DolphinTabBar::DolphinTabBar(QWidget *parent)
  39     : QTabBar(parent)
  40     , m_autoActivationIndex(-1)
  41     , m_tabToBeClosedOnMiddleMouseButtonRelease(-1)
  42 {
  43     setAcceptDrops(true);
  44     setSelectionBehaviorOnRemove(QTabBar::SelectPreviousTab);
  45     setMovable(true);
  46     setTabsClosable(true);
  47
  48     setFocusPolicy(Qt::NoFocus);
  49     installEventFilter(new PreventFocusWhileHidden(this));
  50
  51     m_autoActivationTimer = new QTimer(this);
  52     m_autoActivationTimer->setSingleShot(true);
  53     m_autoActivationTimer->setInterval(800);
  54     connect(m_autoActivationTimer, &QTimer::timeout, this, &DolphinTabBar::slotAutoActivationTimeout);
  55 }
  56
  57 void DolphinTabBar::dragEnterEvent(QDragEnterEvent *event)
  58 {
  59     const QMimeData *mimeData = event->mimeData();
  60     const int index = tabAt(event->position().toPoint());
  61
  62     if (mimeData->hasUrls()) {
  63         event->acceptProposedAction();
  64         updateAutoActivationTimer(index);
  65     }
  66
  67     QTabBar::dragEnterEvent(event);
  68 }
  69
  70 void DolphinTabBar::dragLeaveEvent(QDragLeaveEvent *event)
  71 {
  72     updateAutoActivationTimer(-1);
  73
  74     QTabBar::dragLeaveEvent(event);
  75 }
  76
  77 void DolphinTabBar::dragMoveEvent(QDragMoveEvent *event)
  78 {
  79     const QMimeData *mimeData = event->mimeData();
  80     const int index = tabAt(event->position().toPoint());
  81
  82     if (mimeData->hasUrls()) {
  83         updateAutoActivationTimer(index);
  84     }
  85
  86     QTabBar::dragMoveEvent(event);
  87 }
  88
  89 void DolphinTabBar::dropEvent(QDropEvent *event)
  90 {
  91     // Disable the auto activation timer
  92     updateAutoActivationTimer(-1);
  93
  94     const QMimeData *mimeData = event->mimeData();
  95     const int index = tabAt(event->position().toPoint());
  96
  97     if (mimeData->hasUrls()) {
  98         Q_EMIT tabDropEvent(index, event);
  99     }
 100
 101     QTabBar::dropEvent(event);
 102 }
 103
 104 void DolphinTabBar::mousePressEvent(QMouseEvent *event)
 105 {
 106     const int index = tabAt(event->pos());
 107
 108     if (index >= 0 && event->button() == Qt::MiddleButton) {
 109         m_tabToBeClosedOnMiddleMouseButtonRelease = index;
 110         return;
 111     }
 112
 113     QTabBar::mousePressEvent(event);
 114 }
 115
 116 void DolphinTabBar::mouseReleaseEvent(QMouseEvent *event)
 117 {
 118     const int index = tabAt(event->pos());
 119
 120     if (index >= 0 && index == m_tabToBeClosedOnMiddleMouseButtonRelease && event->button() == Qt::MiddleButton) {
 121         // Mouse middle click on a tab closes this tab.
 122         Q_EMIT tabCloseRequested(index);
 123         return;
 124     }
 125
 126     QTabBar::mouseReleaseEvent(event);
 127 }
 128
 129 void DolphinTabBar::mouseDoubleClickEvent(QMouseEvent *event)
 130 {
 131     if (event->buttons() & Qt::LeftButton) {
 132         int index = tabAt(event->pos());
 133
 134         if (index < 0) {
 135             // empty tabbar area case
 136             index = currentIndex();
 137         }
 138         // Double left click on the tabbar opens a new activated tab
 139         // with the url from the doubleclicked tab or currentTab otherwise.
 140         Q_EMIT openNewActivatedTab(index);
 141     }
 142
 143     QTabBar::mouseDoubleClickEvent(event);
 144 }
 145
 146 void DolphinTabBar::contextMenuEvent(QContextMenuEvent *event)
 147 {
 148     const int index = tabAt(event->pos());
 149
 150     if (index >= 0) {
 151         // Tab context menu
 152         QMenu menu(this);
 153
 154         QAction *newTabAction = menu.addAction(QIcon::fromTheme(QStringLiteral("tab-new")), i18nc("@action:inmenu", "New Tab"));
 155         QAction *detachTabAction = menu.addAction(QIcon::fromTheme(QStringLiteral("tab-detach")), i18nc("@action:inmenu", "Detach Tab"));
 156         QAction *closeOtherTabsAction = menu.addAction(QIcon::fromTheme(QStringLiteral("tab-close-other")), i18nc("@action:inmenu", "Close Other Tabs"));
 157         QAction *closeTabAction = menu.addAction(QIcon::fromTheme(QStringLiteral("tab-close")), i18nc("@action:inmenu", "Close Tab"));
 158
 159         QAction *selectedAction = menu.exec(event->globalPos());
 160         if (selectedAction == newTabAction) {
 161             Q_EMIT openNewActivatedTab(index);
 162         } else if (selectedAction == detachTabAction) {
 163             Q_EMIT tabDetachRequested(index);
 164         } else if (selectedAction == closeOtherTabsAction) {
 165             const int tabCount = count();
 166             for (int i = 0; i < index; i++) {
 167                 Q_EMIT tabCloseRequested(0);
 168             }
 169             for (int i = index + 1; i < tabCount; i++) {
 170                 Q_EMIT tabCloseRequested(1);
 171             }
 172         } else if (selectedAction == closeTabAction) {
 173             Q_EMIT tabCloseRequested(index);
 174         }
 175
 176         return;
 177     }
 178
 179     QTabBar::contextMenuEvent(event);
 180 }
 181
 182 void DolphinTabBar::slotAutoActivationTimeout()
 183 {
 184     if (m_autoActivationIndex >= 0) {
 185         setCurrentIndex(m_autoActivationIndex);
 186         updateAutoActivationTimer(-1);
 187     }
 188 }
 189
 190 void DolphinTabBar::updateAutoActivationTimer(const int index)
 191 {
 192     if (m_autoActivationIndex != index) {
 193         m_autoActivationIndex = index;
 194
 195         if (m_autoActivationIndex < 0) {
 196             m_autoActivationTimer->stop();
 197         } else {
 198             m_autoActivationTimer->start();
 199         }
 200     }
 201 }
 202
 203 #include "moc_dolphintabbar.cpp"