Initial commit — DANCEBOT-9000 KDE Plasma wallpaper plugin

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugin/contents/ui/main.qml

@@ -0,0 +1,44 @@
+import QtQuick 2.0
+import QtWebEngine 1.10
+import org.kde.plasma.core
+import org.kde.plasma.plasmoid
+import org.kde.plasma.plasma5support as Plasma5Support
+
+WallpaperItem {
+    id: root
+
+    WebEngineView {
+        id: webView
+        anchors.fill: parent
+        url: Qt.resolvedUrl("dancer.html")
+        backgroundColor: "#000814"
+
+        settings {
+            javascriptEnabled: true
+            localContentCanAccessFileUrls: true
+            localStorageEnabled: false
+        }
+
+        onContextMenuRequested: function(request) {
+            request.accepted = true
+        }
+    }
+
+    // Polls playerctl every 2s and injects music info into the page
+    Plasma5Support.DataSource {
+        id: musicSource
+        engine: "executable"
+        connectedSources: ["playerctl metadata --format '{{artist}}||{{title}}' 2>/dev/null || echo '||'"]
+        interval: 2000
+
+        onNewData: function(sourceName, data) {
+            var raw = data["stdout"].trim()
+            var sep = raw.indexOf("||")
+            var artist = sep >= 0 ? raw.substring(0, sep) : ""
+            var title  = sep >= 0 ? raw.substring(sep + 2) : raw
+            webView.runJavaScript(
+                "updateMusic(" + JSON.stringify(artist) + "," + JSON.stringify(title) + ")"
+            )
+        }
+    }
+}