generic: move plasma projects to plasma directory, new lsof applet

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

CMakeLists.txt

@@ -31,5 +31,5 @@ macro_optional_add_subdirectory (knetpkg)
 macro_optional_add_subdirectory (kfirewall)
 macro_optional_add_subdirectory (khash)
 macro_optional_add_subdirectory (kprintjobs)
-macro_optional_add_subdirectory (plasma-wallpapers)
+macro_optional_add_subdirectory (plasma)
 macro_optional_add_subdirectory (kdm)

plasma-wallpapers/CMakeLists.txt

@@ -1,13 +0,0 @@
-project(plasma-wallpapers)
-
-if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
-    include(FeatureSummary)
-
-    find_package(KDELibs4 4.23.0 REQUIRED)
-
-    include_directories(${KDE4_INCLUDES})
-    add_definitions(${QT_DEFINITIONS} ${KDE4_DEFINITIONS})
-endif()
-
-add_subdirectory(anipaper)
-add_subdirectory(xwallpaper)

plasma/CMakeLists.txt

@@ -9,4 +9,6 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
     add_definitions(${QT_DEFINITIONS} ${KDE4_DEFINITIONS})
 endif()
 
-add_subdirectory(sleeper)
+add_subdirectory(applets)
+add_subdirectory(runners)
+add_subdirectory(wallpapers)

plasma/applets/CMakeLists.txt

@@ -0,0 +1,3 @@
+project(plasma-applets)
+
+add_subdirectory(lsof)

plasma/applets/lsof/CMakeLists.txt

@@ -0,0 +1,22 @@
+project(plasma-lsof)
+
+set(lsof_SRCS
+    lsof.cpp
+)
+
+kde4_add_plugin(plasma_applet_lsof ${lsof_SRCS})
+target_link_libraries(plasma_applet_lsof
+    KDE4::plasma
+    KDE4::solid
+    ksgrd
+)
+
+install(
+    TARGETS plasma_applet_lsof
+    DESTINATION ${KDE4_PLUGIN_INSTALL_DIR}
+)
+
+install(
+    FILES plasma-applet-lsof.desktop
+    DESTINATION ${KDE4_SERVICES_INSTALL_DIR}
+)

plasma/applets/lsof/lsof.cpp

@@ -0,0 +1,272 @@
+/* 
+    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 "lsof.h"
+
+#include <QMutex>
+#include <QTimer>
+#include <QProcess>
+#include <QTreeWidget>
+#include <QHeaderView>
+#include <QApplication>
+#include <QGraphicsLinearLayout>
+#include <Plasma/TreeWidget>
+#include <KStandardDirs>
+#include <KIcon>
+#include <KDebug>
+
+// TODO: option for it
+static const int s_updatetimeout = 2000; // ms
+static const QStringList s_lsofargs = QStringList() << QLatin1String("-Fftn");
+// keeps things interactive, somewhat
+static const int s_processtime = 50;
+
+class LsofData
+{
+public:
+    LsofData();
+
+    QByteArray lsoffd;
+    QByteArray lsoftype;
+    QByteArray lsofpid;
+    QByteArray lsofname;
+    QTreeWidgetItem* lsofitem;
+
+    bool operator==(const LsofData &other) const;
+};
+
+LsofData::LsofData()
+    : lsofitem(nullptr)
+{
+}
+
+bool LsofData::operator==(const LsofData &other) const
+{
+    return (
+        lsoffd == other.lsoffd && lsoftype == other.lsoftype
+        && lsofpid == other.lsofpid && lsofname == other.lsofname
+        && lsofitem == other.lsofitem
+    );
+}
+
+class LsofWidget : public QGraphicsWidget
+{
+    Q_OBJECT
+public:
+    LsofWidget(Lsof* lsof);
+    ~LsofWidget();
+
+public Q_SLOTS:
+    void slotUpdateLayout();
+
+private Q_SLOTS:
+    void slotFinished(int exitcode);
+    void slotTimeout();
+
+private:
+    QMutex m_mutex;
+    Lsof* m_lsof;
+    QGraphicsLinearLayout* m_layout;
+    Plasma::TreeWidget* m_treewidget;
+    QTreeWidget* m_treewidgetnative;
+    QProcess* m_lsofproc;
+    QTimer* m_timer;
+    QString m_lsofexe;
+    QList<LsofData> m_lsofdata;
+};
+
+
+LsofWidget::LsofWidget(Lsof* lsof)
+    : QGraphicsWidget(lsof),
+    m_lsof(lsof),
+    m_layout(nullptr),
+    m_treewidget(nullptr),
+    m_treewidgetnative(nullptr),
+    m_lsofproc(nullptr)
+{
+    m_layout = new QGraphicsLinearLayout(this);
+
+    const QStringList treeheaders = QStringList()
+        << i18n("File Descriptor")
+        << i18n("Type")
+        << i18n("PID")
+        << i18n("Name");
+    m_treewidget = new Plasma::TreeWidget(this);
+    m_treewidgetnative = m_treewidget->nativeWidget();
+    m_treewidgetnative->setHeaderLabels(treeheaders);
+    m_treewidgetnative->setRootIsDecorated(false);
+    m_treewidgetnative->header()->setMovable(false);
+    m_treewidgetnative->header()->setStretchLastSection(true);
+    m_treewidgetnative->header()->setResizeMode(0, QHeaderView::ResizeToContents);
+    m_treewidgetnative->header()->setResizeMode(1, QHeaderView::ResizeToContents);
+    m_treewidgetnative->header()->setResizeMode(2, QHeaderView::ResizeToContents);
+    m_treewidgetnative->header()->setResizeMode(3, QHeaderView::Stretch);
+    m_layout->addItem(m_treewidget);
+
+    setLayout(m_layout);
+
+    m_lsofproc = new QProcess(this);
+    connect(m_lsofproc, SIGNAL(finished(int)), this, SLOT(slotFinished(int)));
+
+    m_timer = new QTimer(this);
+    m_timer->setInterval(s_updatetimeout);
+    connect(m_timer, SIGNAL(timeout()), this, SLOT(slotTimeout()));
+}
+
+LsofWidget::~LsofWidget()
+{
+    m_timer->stop();
+}
+
+void LsofWidget::slotUpdateLayout()
+{
+    m_timer->stop();
+    m_treewidgetnative->clear();
+    m_lsofexe = KStandardDirs::findExe("lsof");
+    if (m_lsofexe.isEmpty()) {
+        m_lsof->showMessage(
+            KIcon("dialog-warning"),
+            i18n("Could not find lsof program"),
+            Plasma::ButtonOk
+        );
+        return;
+    }
+    m_timer->start();
+}
+
+void LsofWidget::slotFinished(int exitcode)
+{
+    kDebug() << "lsof finished" << exitcode;
+    m_timer->stop();
+    int lsofcounter = 0;
+    LsofData lsofdata;
+    QList<LsofData> currentlsofdata;
+    QByteArray lsofline = m_lsofproc->readLine();
+    while (!lsofline.isEmpty()) {
+        // qDebug() << Q_FUNC_INFO << lsofline;
+        const char lsoflinetype = lsofline.at(0);
+        switch (lsoflinetype) {
+            case 'f': {
+                lsofdata.lsoffd = lsofline.mid(1, lsofline.size() - 1);
+                lsofcounter++;
+                break;
+            }
+            case 't': {
+                lsofdata.lsoftype = lsofline.mid(1, lsofline.size() - 1);
+                lsofcounter++;
+                break;
+            }
+            case 'p': {
+                lsofdata.lsofpid = lsofline.mid(1, lsofline.size() - 1);
+                lsofcounter++;
+                break;
+            }
+            case 'n': {
+                lsofdata.lsofname = lsofline.mid(1, lsofline.size() - 1);
+                lsofcounter++;
+                break;
+            }
+            default: {
+                kWarning() << "invalid lsof line" << lsofline;
+                lsofcounter = 0;
+                lsofdata.lsoffd.clear();
+                lsofdata.lsoftype.clear();
+                lsofdata.lsofpid.clear();
+                lsofdata.lsofname.clear();
+                break;
+            }
+        }
+        if (lsofcounter >= 4) {
+            currentlsofdata.append(lsofdata);
+        }
+        QApplication::processEvents(QEventLoop::AllEvents, s_processtime);
+        lsofline = m_lsofproc->readLine();
+    }
+
+    QMutableListIterator<LsofData> iter(m_lsofdata);
+    while (iter.hasNext()) {
+        const LsofData itercurrent = iter.next();
+        if (currentlsofdata.contains(itercurrent)) {
+            currentlsofdata.removeOne(itercurrent);
+            QApplication::processEvents(QEventLoop::AllEvents, s_processtime);
+            continue;
+        }
+        iter.remove();
+        delete itercurrent.lsofitem;
+        QApplication::processEvents(QEventLoop::AllEvents, s_processtime);
+    }
+
+    foreach (const LsofData lsofdata, currentlsofdata) {
+        const QStringList lsofitemstrings = QStringList()
+            << QString::fromLatin1(lsofdata.lsoffd.constData(), lsofdata.lsoffd.size())
+            << QString::fromLatin1(lsofdata.lsoftype.constData(), lsofdata.lsoftype.size())
+            << QString::fromLatin1(lsofdata.lsofpid.constData(), lsofdata.lsofpid.size())
+            << QString::fromLatin1(lsofdata.lsofname.constData(), lsofdata.lsofname.size());
+        QTreeWidgetItem* lsofitem = new QTreeWidgetItem(m_treewidgetnative, lsofitemstrings);
+        lsofitem->setTextAlignment(0, Qt::AlignLeft | Qt::AlignVCenter);
+        lsofitem->setTextAlignment(1, Qt::AlignLeft | Qt::AlignVCenter);
+        lsofitem->setTextAlignment(2, Qt::AlignLeft | Qt::AlignVCenter);
+        lsofitem->setTextAlignment(3, Qt::AlignLeft | Qt::AlignVCenter);
+        lsofitem->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
+        m_treewidgetnative->addTopLevelItem(lsofitem);
+        QApplication::processEvents(QEventLoop::AllEvents, s_processtime);
+    }
+
+    m_lsofdata = currentlsofdata;
+    m_timer->start();
+}
+
+void LsofWidget::slotTimeout()
+{
+    m_lsofproc->terminate();
+    m_lsofproc->start(m_lsofexe, s_lsofargs);
+}
+
+Lsof::Lsof(QObject *parent, const QVariantList &args)
+    : Plasma::PopupApplet(parent, args),
+    m_lsofwidget(nullptr)
+{
+    setAspectRatioMode(Plasma::IgnoreAspectRatio);
+    setPopupIcon("media-playlist-repeat");
+    // NOTE: no check has to be done if it is installed
+    setAssociatedApplication("ksysguard");
+    adjustSize();
+}
+
+Lsof::~Lsof()
+{
+    delete m_lsofwidget;
+}
+
+void Lsof::init()
+{
+    Plasma::PopupApplet::init();
+    m_lsofwidget = new LsofWidget(this);
+    QTimer::singleShot(500, m_lsofwidget, SLOT(slotUpdateLayout()));
+}
+
+QGraphicsWidget *Lsof::graphicsWidget()
+{
+    return m_lsofwidget;
+}
+
+K_EXPORT_PLASMA_APPLET(lsof, Lsof)
+
+#include "moc_lsof.cpp"
+#include "lsof.moc"

plasma/applets/lsof/lsof.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 LSOF_H
+#define LSOF_H
+
+
+#include <Plasma/PopupApplet>
+
+class LsofWidget;
+
+class Lsof : public Plasma::PopupApplet
+{
+    Q_OBJECT
+public:
+    Lsof(QObject *parent, const QVariantList &args);
+    ~Lsof();
+
+    // Plasma::Applet reimplementations
+    void init() final;
+    // Plasma::PopupApplet reimplementation
+    QGraphicsWidget* graphicsWidget() final;
+
+private:
+    friend LsofWidget;
+    LsofWidget *m_lsofwidget;
+};
+
+#endif // LSOF_H

plasma/applets/lsof/plasma-applet-lsof.desktop

@@ -0,0 +1,17 @@
+[Desktop Entry]
+Name=Open Files
+Comment=List of open files
+Type=Service
+Icon=media-playlist-repeat
+ServiceTypes=Plasma/Applet
+
+X-KDE-Library=plasma_applet_lsof
+X-KDE-PluginInfo-Author=Ivailo Monev
+X-KDE-PluginInfo-Email=xakepa10@gmail.com
+X-KDE-PluginInfo-Name=lsof_applet
+X-KDE-PluginInfo-Version=1.0
+X-KDE-PluginInfo-Website=
+X-KDE-PluginInfo-Category=System Information
+X-KDE-PluginInfo-Depends=
+X-KDE-PluginInfo-License=GPL
+X-KDE-PluginInfo-EnabledByDefault=true

plasma/runners/CMakeLists.txt

@@ -0,0 +1,3 @@
+project(plasma-runners)
+
+add_subdirectory(sleeper)

plasma/wallpapers/CMakeLists.txt

@@ -0,0 +1,4 @@
+project(plasma-wallpapers)
+
+add_subdirectory(anipaper)
+add_subdirectory(xwallpaper)