Move WidgetExplorer to be a private QML plugin

Instead of registering WidgetExplorer inside the shell, create a new qml
plugin in the org.kde.plasma.private namespace.

This is useful for running widgetexplorer in qmlscene.

This makes testing, debugging and profiling considerably easier.

REVIEW: 114914

src/shell/CMakeLists.txt

@@ -33,12 +33,6 @@ set(scripting_SRC
     scripting/widget.cpp
 )
 
-set(widgetexplorer_SRC
-    widgetexplorer/kcategorizeditemsviewmodels.cpp
-    widgetexplorer/plasmaappletitemmodel.cpp
-    widgetexplorer/widgetexplorer.cpp
-)
-
 add_executable(plasma-shell
     activity.cpp
     main.cpp
@@ -54,7 +48,6 @@ add_executable(plasma-shell
     shellpluginloader.cpp
     shellmanager.cpp
     ${scripting_SRC}
-    ${widgetexplorer_SRC}
 )
 
 # The Qt5Widgets_LIBRARIES variable also includes QtGui and QtCore
@@ -85,3 +78,5 @@ endif()
 
 install(TARGETS plasma-shell ${INSTALL_TARGETS_DEFAULT_ARGS})
 install(FILES plasma-shell.desktop DESTINATION ${AUTOSTART_INSTALL_DIR})
+
+add_subdirectory(widgetexplorer)

src/shell/shellcorona.cpp

@@ -97,9 +97,6 @@ ShellCorona::ShellCorona(QObject *parent)
 {
     d->desktopDefaultsConfig = KConfigGroup(KSharedConfig::openConfig(package().filePath("defaults")), "Desktop");
 
-    qmlRegisterType<WidgetExplorer>("org.kde.plasma.private.shell", 2, 0, "WidgetExplorer");
-    qmlRegisterType<Plasma::Containment>();
-
     connect(&d->appConfigSyncTimer, &QTimer::timeout,
             this, &ShellCorona::syncAppConfig);
 

src/shell/widgetexplorer/CMakeLists.txt

@@ -0,0 +1,27 @@
+project(plasmawidgetexplorerplugin)
+
+set(widgetexplorer_SRC
+    kcategorizeditemsviewmodels.cpp
+    plasmaappletitemmodel.cpp
+    widgetexplorer.cpp
+    widgetexplorerplugin.cpp
+)
+
+add_library(plasmawidgetexplorerplugin SHARED ${widgetexplorer_SRC})
+target_link_libraries(plasmawidgetexplorerplugin
+        Qt5::Core
+        Qt5::Quick
+        Qt5::Qml
+        Qt5::Gui
+        Qt5::Widgets
+        Qt5::Quick
+        Qt5::Qml
+        KF5::Plasma
+        KF5::PlasmaQuick
+        KF5::I18n
+        KF5::Service
+)
+
+install(TARGETS plasmawidgetexplorerplugin DESTINATION ${QML_INSTALL_DIR}/org/kde/plasma/private/shell)
+
+install(FILES qmldir DESTINATION ${QML_INSTALL_DIR}/org/kde/plasma/private/shell)

src/shell/widgetexplorer/qmldir

@@ -0,0 +1,2 @@
+module org.kde.plasma.private.shell
+plugin plasmawidgetexplorerplugin

src/shell/widgetexplorer/widgetexplorerplugin.cpp

@@ -0,0 +1,36 @@
+/*
+    Copyright 2014 by David Edmundson <davidedmundson@kde.org>
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#include "widgetexplorerplugin.h"
+
+#include <QtQml>
+
+#include "widgetexplorer.h"
+#include <plasma/containment.h>
+
+void WidgetExplorerPlugin::registerTypes(const char *uri)
+{
+    Q_ASSERT(uri == QLatin1String("org.kde.plasma.private.shell"));
+
+    qmlRegisterType<Plasma::Containment>();
+    qmlRegisterType<WidgetExplorer>(uri, 2, 0, "WidgetExplorer");
+}

src/shell/widgetexplorer/widgetexplorerplugin.h

@@ -0,0 +1,37 @@
+/*
+    Copyright 2014 by David Edmundson <davidedmundson@kde.org>
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef WIDGETEXPLORERPLUGIN_H
+#define WIDGETEXPLORERPLUGIN_H
+
+#include <QQmlExtensionPlugin>
+
+class WidgetExplorerPlugin : public QQmlExtensionPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface")
+
+public:
+    void registerTypes(const char *uri);
+};
+
+#endif