Add base gnome extensions

gnome/.local/share/extensions/gsconnect@andyholmes.github.io/service/plugins/presenter.js

@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: GSConnect Developers https://github.com/GSConnect
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+'use strict';
+
+const GObject = imports.gi.GObject;
+
+const Components = imports.service.components;
+const PluginBase = imports.service.plugin;
+
+
+var Metadata = {
+    label: _('Presentation'),
+    description: _('Use the paired device as a presenter'),
+    id: 'org.gnome.Shell.Extensions.GSConnect.Plugin.Presenter',
+    incomingCapabilities: ['kdeconnect.presenter'],
+    outgoingCapabilities: [],
+    actions: {},
+};
+
+
+/**
+ * Presenter Plugin
+ * https://github.com/KDE/kdeconnect-kde/tree/master/plugins/presenter
+ * https://github.com/KDE/kdeconnect-android/tree/master/src/org/kde/kdeconnect/Plugins/PresenterPlugin/
+ */
+var Plugin = GObject.registerClass({
+    GTypeName: 'GSConnectPresenterPlugin',
+}, class Plugin extends PluginBase.Plugin {
+
+    _init(device) {
+        super._init(device, 'presenter');
+
+        if (!globalThis.HAVE_GNOME)
+            this._input = Components.acquire('ydotool');
+        else
+            this._input = Components.acquire('input');
+    }
+
+    handlePacket(packet) {
+        if (packet.body.hasOwnProperty('dx')) {
+            this._input.movePointer(
+                packet.body.dx * 1000,
+                packet.body.dy * 1000
+            );
+        } else if (packet.body.stop) {
+            // Currently unsupported and unnecessary as we just re-use the mouse
+            // pointer instead of showing an arbitrary window.
+        }
+    }
+
+    destroy() {
+        if (this._input !== undefined) {
+            if (!globalThis.HAVE_GNOME)
+                this._input = Components.release('ydotool');
+            else
+                this._input = Components.release('input');
+        }
+
+        super.destroy();
+    }
+});