plasma: new network applet

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>

plasma/applets/CMakeLists.txt

@@ -1,3 +1,4 @@
 project(plasma-applets)
 
-add_subdirectory(lsof)
+add_subdirectory(lsof)
+add_subdirectory(network)

plasma/applets/network/CMakeLists.txt

@@ -0,0 +1,21 @@
+project(plasma-applet-network)
+
+set(network_SRCS
+    network.cpp
+)
+
+kde4_add_plugin(plasma_applet_network ${network_SRCS})
+target_link_libraries(plasma_applet_network
+    KDE4::plasma
+    KDE4::knetworkmanager
+)
+
+install(
+    TARGETS plasma_applet_network
+    DESTINATION ${KDE4_PLUGIN_INSTALL_DIR}
+)
+
+install(
+    FILES plasma-applet-network.desktop
+    DESTINATION ${KDE4_SERVICES_INSTALL_DIR}
+)

plasma/applets/network/network.cpp

@@ -0,0 +1,155 @@
+/*  This file is part of the KDE project
+    Copyright (C) 2024 Ivailo Monev <xakepa10@gmail.com>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License version 2, as published by the Free Software Foundation.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include "network.h"
+
+#include <KIcon>
+#include <KNetworkManager>
+#include <Plasma/CheckBox>
+#include <KDebug>
+
+// TODO: KNetworkManager::isEnabled() for initial status
+// TODO: KNetworkManager::connections() for connections status (which is the one being used)
+
+static const int s_svgiconsize = 256;
+static const QString s_defaultpopupicon = QString::fromLatin1("network-workgroup");
+static const QSizeF s_minimumsize = QSizeF(150, 50);
+
+static QIcon kNetworkIcon(QObject *parent, const bool active, bool wireless, const int strength)
+{
+    QIcon result;
+    Plasma::Svg plasmasvg(parent);
+    plasmasvg.setImagePath("icons/network");
+    plasmasvg.setContainsMultipleImages(true);
+    if (plasmasvg.isValid()) {
+        QPixmap iconpixmap(s_svgiconsize, s_svgiconsize);
+        iconpixmap.fill(Qt::transparent);
+        QPainter iconpainter(&iconpixmap);
+        if (wireless) {
+            if (strength > 75) {
+                plasmasvg.paint(&iconpainter, iconpixmap.rect(), "network-wireless-100");
+            } else if (strength > 50) {
+                plasmasvg.paint(&iconpainter, iconpixmap.rect(), "network-wireless-75");
+            } else if (strength > 25) {
+                plasmasvg.paint(&iconpainter, iconpixmap.rect(), "network-wireless-50");
+            } else if (strength > 0) {
+                plasmasvg.paint(&iconpainter, iconpixmap.rect(), "network-wireless-25");
+            } else {
+                plasmasvg.paint(&iconpainter, iconpixmap.rect(), "network-wireless-0");
+            }
+        } else {
+            plasmasvg.paint(&iconpainter, iconpixmap.rect(), active ? "network-wired-activated" : "network-wired");
+        }
+        result = QIcon(iconpixmap);
+    } else {
+        result = KIcon(s_defaultpopupicon);
+    }
+    return result;
+}
+
+class NetworkAppletWidget : public QGraphicsWidget
+{
+    Q_OBJECT
+public:
+    NetworkAppletWidget(NetworkApplet* network);
+    ~NetworkAppletWidget();
+
+private Q_SLOTS:
+    void slotDisableNetwork(const bool disable);
+    void slotStatusChanged(const KNetworkManager::KNetworkStatus status);
+
+private:
+    NetworkApplet* m_network;
+    QGraphicsLinearLayout* m_layout;
+    Plasma::CheckBox* m_disablenetworkbox;
+    KNetworkManager* m_networkmanager;
+};
+
+NetworkAppletWidget::NetworkAppletWidget(NetworkApplet* network)
+    : QGraphicsWidget(network),
+    m_network(network),
+    m_layout(nullptr),
+    m_disablenetworkbox(nullptr)
+{
+    setMinimumSize(s_minimumsize);
+    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+
+    m_layout = new QGraphicsLinearLayout(Qt::Vertical, this);
+    m_disablenetworkbox = new Plasma::CheckBox(this);
+    m_disablenetworkbox->setText(i18n("Disable network"));
+    m_disablenetworkbox->setEnabled(KNetworkManager::isSupported());
+    connect(m_disablenetworkbox, SIGNAL(toggled(bool)), this, SLOT(slotDisableNetwork(bool)));
+    m_layout->addItem(m_disablenetworkbox);
+    setLayout(m_layout);
+
+    m_networkmanager = new KNetworkManager(this);
+    slotStatusChanged(m_networkmanager->status());
+    connect(
+        m_networkmanager, SIGNAL(statusChanged(KNetworkManager::KNetworkStatus)),
+        this, SLOT(slotStatusChanged(KNetworkManager::KNetworkStatus))
+    );
+}
+
+NetworkAppletWidget::~NetworkAppletWidget()
+{
+}
+
+void NetworkAppletWidget::slotDisableNetwork(const bool disable)
+{
+    if (disable) {
+        m_networkmanager->enable(false);
+    } else {
+        m_networkmanager->enable(true);
+    }
+}
+
+void NetworkAppletWidget::slotStatusChanged(const KNetworkManager::KNetworkStatus status)
+{
+    m_network->setPopupIcon(
+        kNetworkIcon(this, status == KNetworkManager::ConnectedStatus, false, 0)
+    );
+}
+
+
+NetworkApplet::NetworkApplet(QObject *parent, const QVariantList &args)
+    : Plasma::PopupApplet(parent, args),
+    m_networkwidget(nullptr)
+{
+    setAspectRatioMode(Plasma::AspectRatioMode::IgnoreAspectRatio);
+    setPopupIcon(s_defaultpopupicon);
+}
+
+NetworkApplet::~NetworkApplet()
+{
+    delete m_networkwidget;
+}
+
+void NetworkApplet::init()
+{
+    Plasma::PopupApplet::init();
+
+    m_networkwidget = new NetworkAppletWidget(this);
+}
+
+QGraphicsWidget* NetworkApplet::graphicsWidget()
+{
+    return m_networkwidget;
+}
+
+#include "moc_network.cpp"
+#include "network.moc"

plasma/applets/network/network.h

@@ -0,0 +1,45 @@
+/*  This file is part of the KDE project
+    Copyright (C) 2024 Ivailo Monev <xakepa10@gmail.com>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License version 2, as published by the Free Software Foundation.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef NETWORK_H
+#define NETWORK_H
+
+#include <Plasma/PopupApplet>
+
+class NetworkAppletWidget;
+
+class NetworkApplet : public Plasma::PopupApplet
+{
+    Q_OBJECT
+public:
+    NetworkApplet(QObject *parent, const QVariantList &args);
+    ~NetworkApplet();
+
+    // Plasma::Applet reimplementation
+    void init() final;
+    // Plasma::PopupApplet reimplementation
+    QGraphicsWidget* graphicsWidget() final;
+
+private:
+    friend NetworkAppletWidget;
+    NetworkAppletWidget *m_networkwidget;
+};
+
+K_EXPORT_PLASMA_APPLET(network, NetworkApplet)
+
+#endif // NETWORK_H

plasma/applets/network/plasma-applet-network.desktop

@@ -0,0 +1,23 @@
+[Desktop Entry]
+Name=Network Monitor and Manager
+Comment=See the network status and manage it
+Encoding=UTF-8
+Keywords=Network;System;
+
+Icon=network-workgroup
+Type=Service
+X-KDE-ServiceTypes=Plasma/Applet,Plasma/PopupApplet
+X-KDE-Library=plasma_applet_network
+
+X-Plasma-DefaultSize=450,300
+X-Plasma-NotificationArea=true
+
+X-KDE-PluginInfo-Author=Ivailo Monev
+X-KDE-PluginInfo-Category=System Information
+X-KDE-PluginInfo-Email=xakepa10@gmail.com
+X-KDE-PluginInfo-License=GPL
+X-KDE-PluginInfo-Name=network
+X-KDE-PluginInfo-Version=1.0
+X-KDE-PluginInfo-Website=
+X-KDE-PluginInfo-Depends=
+X-KDE-PluginInfo-EnabledByDefault=true