Turn krunner integration into a plugin

krunner stuff doesn't really belong in kwin, it has nothing to do with
compositing or any other things that are the domain of compositors.
Given that, being as a plugin suits the krunner integration stuff best.

CMakeLists.txt

@@ -607,12 +607,6 @@ if (KWIN_BUILD_ACTIVITIES)
     )
 endif()
 
-if (KWIN_BUILD_RUNNERS)
-    set(kwin_SRCS ${kwin_SRCS}
-        runners/windowsrunnerinterface.cpp
-    )
-endif()
-
 if (HAVE_LINUX_VT_H)
     set(kwin_SRCS ${kwin_SRCS}
         virtual_terminal.cpp
@@ -643,9 +637,6 @@ qt5_add_dbus_adaptor(kwin_SRCS ${kwin_effects_dbus_xml} effects.h KWin::EffectsH
 qt5_add_dbus_adaptor(kwin_SRCS org.kde.KWin.VirtualDesktopManager.xml dbusinterface.h KWin::VirtualDesktopManagerDBusInterface)
 qt5_add_dbus_adaptor(kwin_SRCS org.kde.KWin.Session.xml sm.h KWin::SessionManager)
 qt5_add_dbus_adaptor(kwin_SRCS org.kde.KWin.Plugins.xml dbusinterface.h KWin::PluginManagerDBusInterface)
-if (KWIN_BUILD_RUNNERS)
-    qt5_add_dbus_adaptor(kwin_SRCS "runners/org.kde.krunner1.xml" runners/windowsrunnerinterface.h KWin::WindowsRunner)
-endif()
 
 qt5_add_dbus_interface(kwin_SRCS ${KSCREENLOCKER_DBUS_INTERFACES_DIR}/kf5_org.freedesktop.ScreenSaver.xml screenlocker_interface)
 qt5_add_dbus_interface(kwin_SRCS ${KSCREENLOCKER_DBUS_INTERFACES_DIR}/org.kde.screensaver.xml kscreenlocker_interface)
@@ -722,10 +713,6 @@ if (KWIN_BUILD_ACTIVITIES)
     set(kwin_KDE_LIBS ${kwin_KDE_LIBS} KF5::Activities)
 endif()
 
-if (KWIN_BUILD_RUNNERS)
-    set(kwin_KDE_LIBS ${kwin_KDE_LIBS} KF5::Runner)
-endif()
-
 set(kwinLibs
     ${kwin_OWN_LIBS}
     ${kwin_QT_LIBS}
@@ -847,11 +834,6 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/kwin_export.h DESTINATION ${INCLUDE_IN
 # Install the KWin/Script service type
 install(FILES scripting/kwinscript.desktop DESTINATION ${SERVICETYPES_INSTALL_DIR})
 
-# install KWin krunner runner
-if (KWIN_BUILD_RUNNERS)
-    install(FILES runners/kwin-runner-windows.desktop DESTINATION ${KDE_INSTALL_DATAROOTDIR}/krunner/dbusplugins)
-endif()
-
 add_subdirectory(qml)
 
 if (BUILD_TESTING)

plugins/CMakeLists.txt

@@ -15,3 +15,6 @@ endif()
 if (lcms2_FOUND)
     add_subdirectory(colord-integration)
 endif()
+if (KWIN_BUILD_RUNNERS)
+    add_subdirectory(krunner-integration)
+endif()

plugins/krunner-integration/CMakeLists.txt

@@ -0,0 +1,12 @@
+set(krunnerintegration_SOURCES
+    main.cpp
+    windowsrunnerinterface.cpp
+)
+
+qt5_add_dbus_adaptor(krunnerintegration_SOURCES org.kde.krunner1.xml windowsrunnerinterface.h KWin::WindowsRunner)
+
+add_library(krunnerintegration MODULE ${krunnerintegration_SOURCES})
+target_link_libraries(krunnerintegration kwin KF5::Runner)
+
+install(TARGETS krunnerintegration DESTINATION ${PLUGIN_INSTALL_DIR}/kwin/plugins/)
+install(FILES kwin-runner-windows.desktop DESTINATION ${KDE_INSTALL_DATAROOTDIR}/krunner/dbusplugins)

plugins/krunner-integration/main.cpp

@@ -0,0 +1,38 @@
+/*
+    SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+#include "windowsrunnerinterface.h"
+#include "main.h"
+
+#include <KPluginFactory>
+
+using namespace KWin;
+
+class KWIN_EXPORT KRunnerIntegrationFactory : public PluginFactory
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID PluginFactory_iid FILE "metadata.json")
+    Q_INTERFACES(KWin::PluginFactory)
+
+public:
+    explicit KRunnerIntegrationFactory(QObject *parent = nullptr);
+
+    Plugin *create() const override;
+};
+
+KRunnerIntegrationFactory::KRunnerIntegrationFactory(QObject *parent)
+    : PluginFactory(parent)
+{
+}
+
+Plugin *KRunnerIntegrationFactory::create() const
+{
+    return new WindowsRunner();
+}
+
+K_EXPORT_PLUGIN_VERSION(KWIN_PLUGIN_API_VERSION)
+
+#include "main.moc"

plugins/krunner-integration/metadata.json

@@ -0,0 +1,6 @@
+{
+    "KPlugin": {
+        "EnabledByDefault": true,
+        "Id": "kwin5_plugin_krunner"
+    }
+}

plugins/krunner-integration/windowsrunnerinterface.cpp

@@ -20,7 +20,20 @@
 namespace KWin
 {
 WindowsRunner::WindowsRunner(QObject *parent)
-    : QObject(parent)
+    : Plugin(parent)
+{
+    if (workspace()) {
+        initialize();
+    } else {
+        connect(kwinApp(), &Application::workspaceCreated, this, &WindowsRunner::initialize);
+    }
+}
+
+WindowsRunner::~WindowsRunner()
+{
+}
+
+void WindowsRunner::initialize()
 {
     new Krunner1Adaptor(this);
     qDBusRegisterMetaType<RemoteMatch>();
@@ -31,10 +44,6 @@ WindowsRunner::WindowsRunner(QObject *parent)
     QDBusConnection::sessionBus().registerService(QStringLiteral("org.kde.KWin"));
 }
 
-WindowsRunner::~WindowsRunner()
-{
-}
-
 RemoteActions WindowsRunner::Actions()
 {
     RemoteActions actions;

plugins/krunner-integration/windowsrunnerinterface.h

@@ -13,21 +13,23 @@
 
 #pragma once
 
+#include "plugin.h"
+#include "dbusutils_p.h"
+
+#include <KRunner/QueryMatch>
+
 #include <QObject>
 #include <QDBusContext>
 #include <QDBusMessage>
 #include <QString>
 #include <QDBusArgument>
 
-#include <KRunner/QueryMatch>
-#include "dbusutils_p.h"
-
 namespace KWin
 {
 class VirtualDesktop;
 class AbstractClient;
 
-class WindowsRunner : public QObject, protected QDBusContext
+class WindowsRunner : public Plugin, protected QDBusContext
 {
     Q_OBJECT
     Q_CLASSINFO("D-Bus Interface", "org.kde.KWin.WindowsRunner")
@@ -54,6 +56,7 @@ private:
         ActivateDesktopAction
     };
 
+    void initialize();
     RemoteMatch desktopMatch(const VirtualDesktop *desktop, const WindowsRunnerAction action = ActivateDesktopAction,  qreal relevance = 1.0) const;
     RemoteMatch windowsMatch(const AbstractClient *client,  const WindowsRunnerAction action = ActivateAction, qreal relevance = 1.0, Plasma::QueryMatch::Type type = Plasma::QueryMatch::ExactMatch) const;
     bool actionSupported(const AbstractClient *client, const WindowsRunnerAction action) const;

workspace.cpp

@@ -60,10 +60,6 @@
 // Qt
 #include <QtConcurrentRun>
 
-#ifdef KF5Runner_FOUND
-    #include <runners/windowsrunnerinterface.h>
-#endif
-
 namespace KWin
 {
 
@@ -201,9 +197,6 @@ Workspace::Workspace()
     });
 
     new DBusInterface(this);
-#ifdef KF5Runner_FOUND
-    new WindowsRunner(this);
-#endif
     Outline::create(this);
 
     initShortcuts();