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 <KNS3/KMoreToolsMenuFactory>
  13
  14 #include <QMouseEvent>
  15
  16 StatusBarSpaceInfo::StatusBarSpaceInfo(QWidget* parent) :
  17     KCapacityBar(KCapacityBar::DrawTextInline, parent),
  18     m_observer(nullptr)
  19 {
  20     setCursor(Qt::PointingHandCursor);
  21 }
  22
  23 StatusBarSpaceInfo::~StatusBarSpaceInfo()
  24 {
  25 }
  26
  27 void StatusBarSpaceInfo::setShown(bool shown)
  28 {
  29     m_shown = shown;
  30     if (!m_shown) {
  31         hide();
  32         m_ready = false;
  33     }
  34 }
  35
  36 void StatusBarSpaceInfo::setUrl(const QUrl& url)
  37 {
  38     if (m_url != url) {
  39         m_url = url;
  40         m_ready = false;
  41         if (m_observer) {
  42             m_observer.reset(new SpaceInfoObserver(m_url, this));
  43             connect(m_observer.data(), &SpaceInfoObserver::valuesChanged, this, &StatusBarSpaceInfo::slotValuesChanged);
  44         }
  45     }
  46 }
  47
  48 QUrl StatusBarSpaceInfo::url() const
  49 {
  50     return m_url;
  51 }
  52
  53 void StatusBarSpaceInfo::update()
  54 {
  55     if (m_observer) {
  56         m_observer->update();
  57     }
  58 }
  59
  60 void StatusBarSpaceInfo::showEvent(QShowEvent* event)
  61 {
  62     if (m_shown) {
  63         if (m_ready) {
  64             KCapacityBar::showEvent(event);
  65         }
  66
  67         if (m_observer.isNull()) {
  68             m_observer.reset(new SpaceInfoObserver(m_url, this));
  69             connect(m_observer.data(), &SpaceInfoObserver::valuesChanged, this, &StatusBarSpaceInfo::slotValuesChanged);
  70         }
  71     }
  72 }
  73
  74 void StatusBarSpaceInfo::hideEvent(QHideEvent* event)
  75 {
  76     if (m_ready) {
  77         m_observer.reset();
  78         m_ready = false;
  79     }
  80     KCapacityBar::hideEvent(event);
  81 }
  82
  83 void StatusBarSpaceInfo::mousePressEvent(QMouseEvent* event)
  84 {
  85     if (event->button() == Qt::LeftButton) {
  86         // Creates a menu with tools that help to find out more about free
  87         // disk space for the given url.
  88
  89         // Note that this object must live long enough in case the user opens
  90         // the "Configure..." dialog
  91         KMoreToolsMenuFactory menuFactory(QStringLiteral("dolphin/statusbar-diskspace-menu"));
  92         menuFactory.setParentWidget(this);
  93         auto menu = menuFactory.createMenuFromGroupingNames(
  94             { "disk-usage", "more:", "disk-partitions" }, m_url);
  95
  96         menu->exec(QCursor::pos());
  97     }
  98 }
  99
 100 void StatusBarSpaceInfo::slotValuesChanged()
 101 {
 102     Q_ASSERT(m_observer);
 103     const quint64 size = m_observer->size();
 104
 105     if (!m_shown || size == 0) {
 106         hide();
 107         return;
 108     }
 109
 110     m_ready = true;
 111
 112     const quint64 available = m_observer->available();
 113     const quint64 used = size - available;
 114     const int percentUsed = qRound(100.0 * qreal(used) / qreal(size));
 115
 116     setText(i18nc("@info:status Free disk space", "%1 free", KIO::convertSize(available)));
 117     setUpdatesEnabled(false);
 118     setValue(percentUsed);
 119     setUpdatesEnabled(true);
 120
 121     if (!isVisible()) {
 122         show();
 123     } else {
 124         update();
 125     }
 126 }
 127