src/statusbar/statusbarspaceinfo.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2006 Peter Penz (peter.penz@gmx.at) and Patrice Tremblay
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "statusbarspaceinfo.h"
   8
   9 #include "spaceinfoobserver.h"
  10
  11 #include <KLocalizedString>
  12 #include <KMoreToolsMenuFactory>
  13
  14 #include <KIO/Global>
  15 #include <QMouseEvent>
  16
  17 StatusBarSpaceInfo::StatusBarSpaceInfo(QWidget* parent) :
  18     KCapacityBar(KCapacityBar::DrawTextInline, parent),
  19     m_observer(nullptr)
  20 {
  21     setCursor(Qt::PointingHandCursor);
  22 }
  23
  24 StatusBarSpaceInfo::~StatusBarSpaceInfo()
  25 {
  26 }
  27
  28 void StatusBarSpaceInfo::setShown(bool shown)
  29 {
  30     m_shown = shown;
  31     if (!m_shown) {
  32         hide();
  33         m_ready = false;
  34     }
  35 }
  36
  37 void StatusBarSpaceInfo::setUrl(const QUrl& url)
  38 {
  39     if (m_url != url) {
  40         m_url = url;
  41         m_ready = false;
  42         if (m_observer) {
  43             m_observer.reset(new SpaceInfoObserver(m_url, this));
  44             connect(m_observer.data(), &SpaceInfoObserver::valuesChanged, this, &StatusBarSpaceInfo::slotValuesChanged);
  45         }
  46     }
  47 }
  48
  49 QUrl StatusBarSpaceInfo::url() const
  50 {
  51     return m_url;
  52 }
  53
  54 void StatusBarSpaceInfo::update()
  55 {
  56     if (m_observer) {
  57         m_observer->update();
  58     }
  59 }
  60
  61 void StatusBarSpaceInfo::showEvent(QShowEvent* event)
  62 {
  63     if (m_shown) {
  64         if (m_ready) {
  65             KCapacityBar::showEvent(event);
  66         }
  67
  68         if (m_observer.isNull()) {
  69             m_observer.reset(new SpaceInfoObserver(m_url, this));
  70             connect(m_observer.data(), &SpaceInfoObserver::valuesChanged, this, &StatusBarSpaceInfo::slotValuesChanged);
  71         }
  72     }
  73 }
  74
  75 void StatusBarSpaceInfo::hideEvent(QHideEvent* event)
  76 {
  77     if (m_ready) {
  78         m_observer.reset();
  79         m_ready = false;
  80     }
  81     KCapacityBar::hideEvent(event);
  82 }
  83
  84 void StatusBarSpaceInfo::mousePressEvent(QMouseEvent* event)
  85 {
  86     if (event->button() == Qt::LeftButton) {
  87         // Creates a menu with tools that help to find out more about free
  88         // disk space for the given url.
  89
  90         // Note that this object must live long enough in case the user opens
  91         // the "Configure..." dialog
  92         KMoreToolsMenuFactory menuFactory(QStringLiteral("dolphin/statusbar-diskspace-menu"));
  93         menuFactory.setParentWidget(this);
  94         auto menu = menuFactory.createMenuFromGroupingNames(
  95             { "disk-usage", "more:", "disk-partitions" }, m_url);
  96
  97         menu->exec(QCursor::pos());
  98     }
  99 }
 100
 101 void StatusBarSpaceInfo::slotValuesChanged()
 102 {
 103     Q_ASSERT(m_observer);
 104     const quint64 size = m_observer->size();
 105
 106     if (!m_shown || size == 0) {
 107         hide();
 108         return;
 109     }
 110
 111     m_ready = true;
 112
 113     const quint64 available = m_observer->available();
 114     const quint64 used = size - available;
 115     const int percentUsed = qRound(100.0 * qreal(used) / qreal(size));
 116
 117     setText(i18nc("@info:status Free disk space", "%1 free", KIO::convertSize(available)));
 118     setToolTip(i18nc("tooltip:status Free disk space", "%1 free out of %2 (%3% used)", KIO::convertSize(available), KIO::convertSize(size), percentUsed));
 119     setUpdatesEnabled(false);
 120     setValue(percentUsed);
 121     setUpdatesEnabled(true);
 122
 123     if (!isVisible()) {
 124         show();
 125     } else {
 126         update();
 127     }
 128 }
 129