commit 66dd3435a3d422562172c21566af7e2303aa87ef
Author: David Edmundson <kde@davidedmundson.co.uk>
Date:   Thu Jan 9 00:44:34 2020 +0000

    applet source

diff --git a/shell/panelcountsource.h b/shell/panelcountsource.h
index a621d9172..8b3af3622 100644
--- a/shell/panelcountsource.h
+++ b/shell/panelcountsource.h
@@ -23,6 +23,8 @@
 #include "shellcorona.h"
 #include <KLocalizedString>
 #include <KUserFeedback/AbstractDataSource>
+#include <KPluginMetaData>
+#include <QDebug>
 
 class PanelCountSource : public KUserFeedback::AbstractDataSource
 {
@@ -42,4 +44,37 @@ private:
     ShellCorona* const corona;
 };
 
+class AppletListSource: public KUserFeedback::AbstractDataSource
+{
+public:
+    AppletListSource(ShellCorona *corona)
+        : AbstractDataSource(QStringLiteral("applets"), KUserFeedback::Provider::DetailedSystemInformation)
+        , corona(corona)
+    {}
+
+    QString name() const override { return i18n("Applets"); }
+    QString description() const override { return i18n("List of running applets"); }
+
+    QVariant data() override {
+        QStringList applets;
+        for(auto c: corona->containments()) {
+            for (auto applet: c->applets()) {
+                QString appletName = applet->pluginMetaData().pluginId();
+                qDebug() << appletName;
+                if (!appletName.startsWith("org.kde.")) {
+                    // if it's not from us, it's probably in the form "net.davidedmundson.superawesomesecretapplet"
+                    // at which point including it would leak a probable identifier
+                    // by taking a hash, we can hide that but still see how popular net.some.random.store.thing is
+                    appletName = QCryptographicHash::hash(appletName.toLatin1(), QCryptographicHash::Md5);
+                }
+                applets << appletName;
+            }
+        }
+        return applets;
+    }
+
+private:
+    ShellCorona* const corona;
+};
+
 #endif
diff --git a/shell/shellcorona.cpp b/shell/shellcorona.cpp
index 127f5f6b6..a3e7f052b 100644
--- a/shell/shellcorona.cpp
+++ b/shell/shellcorona.cpp
@@ -313,6 +313,7 @@ void ShellCorona::setShell(const QString &shell)
     feedbackProvider->addDataSource(new KUserFeedback::OpenGLInfoSource);
     feedbackProvider->addDataSource(new KUserFeedback::ScreenInfoSource);
     feedbackProvider->addDataSource(new PanelCountSource(this));
+    feedbackProvider->addDataSource(new AppletListSource(this));
 
     {
         auto plasmaConfig = KSharedConfig::openConfig(QStringLiteral("PlasmaUserFeedback"));