Add kwin full source tree, greeter login, zsh, pcid service, and build system improvements

local/recipes/kde/kwin/examples/plugin/.gitignore

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+build

local/recipes/kde/kwin/examples/plugin/CMakeLists.txt

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+# SPDX-FileCopyrightText: None
+# SPDX-License-Identifier: CC0-1.0
+
+cmake_minimum_required(VERSION 3.20)
+project(quick-effect)
+
+set(KF6_MIN_VERSION "6.0.0")
+
+find_package(ECM ${KF6_MIN_VERSION} REQUIRED NO_MODULE)
+set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
+
+include(FeatureSummary)
+include(KDEInstallDirs)
+include(KDECMakeSettings)
+include(KDECompilerSettings NO_POLICY_SCOPE)
+
+find_package(Qt6 CONFIG REQUIRED COMPONENTS
+    Core
+    Widgets
+)
+
+find_package(KWin REQUIRED COMPONENTS
+    kwin
+)
+
+kcoreaddons_add_plugin(eventlistener INSTALL_NAMESPACE "kwin/plugins")
+target_sources(eventlistener PRIVATE
+    main.cpp
+    eventlistener.cpp
+)
+
+target_link_libraries(eventlistener PRIVATE
+    KWin::kwin
+)
+
+feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)

local/recipes/kde/kwin/examples/plugin/eventlistener.cpp

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+/*
+    SPDX-FileCopyrightText: 2024 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+*/
+
+#include "eventlistener.h"
+#include "kwin/input.h"
+#include "kwin/input_event.h"
+
+#include <QDebug>
+
+namespace KWin
+{
+
+EventListener::EventListener()
+{
+    qDebug() << "Loaded demo event listener plugin";
+    input()->installInputEventSpy(this);
+}
+
+void EventListener::keyEvent(KeyEvent *event)
+{
+    qDebug() << event;
+}
+
+void EventListener::pointerEvent(MouseEvent *event)
+{
+    qDebug() << event;
+}
+
+} // namespace KWin
+
+#include "moc_eventlistener.cpp"

local/recipes/kde/kwin/examples/plugin/eventlistener.h

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+/*
+    SPDX-FileCopyrightText: 2024 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+*/
+
+#pragma once
+
+#include "kwin/plugin.h"
+#include "kwin/input_event_spy.h"
+
+namespace KWin
+{
+
+class EventListener : public Plugin, public InputEventSpy
+{
+    Q_OBJECT
+
+public:
+    EventListener();
+
+    void keyEvent(KeyEvent *event) override;
+    void pointerEvent(MouseEvent *event) override;
+};
+
+} // namespace KWin

local/recipes/kde/kwin/examples/plugin/main.cpp

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+/*
+    SPDX-FileCopyrightText: 2024 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+
+#include "eventlistener.h"
+
+#include <KPluginFactory>
+
+namespace KWin
+{
+
+class KWIN_EXPORT EventListenerFactory : public PluginFactory
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID PluginFactory_iid FILE "metadata.json")
+    Q_INTERFACES(KWin::PluginFactory)
+
+public:
+    explicit EventListenerFactory() = default;
+
+    std::unique_ptr<Plugin> create() const override
+    {
+        return std::make_unique<EventListener>();
+    }
+};
+
+} // namespace KWin
+
+#include "main.moc"

local/recipes/kde/kwin/examples/plugin/metadata.json

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+{
+    "KPlugin": {
+        "EnabledByDefault": true
+    }
+}

local/recipes/kde/kwin/examples/plugin/metadata.json.license

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+SPDX-FileCopyrightText: None
+SPDX-License-Identifier: CC0-1.0