From 74703d12ef6f72a057f11957181b6cf6f4730e2d Mon Sep 17 00:00:00 2001
From: Christian Mollekopf <chrigi_1@fastmail.fm>
Date: Mon, 24 Apr 2017 15:34:31 +0200
Subject: Added the Fabric as an in application message bus

---
 framework/src/fabric.h | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 framework/src/fabric.h

(limited to 'framework/src/fabric.h')

diff --git a/framework/src/fabric.h b/framework/src/fabric.h
new file mode 100644
index 00000000..764c42b1
--- /dev/null
+++ b/framework/src/fabric.h
@@ -0,0 +1,70 @@
+/*
+    Copyright (c) 2016 Christian Mollekopf <mollekopf@kolabsys.com>
+
+    This library is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Library General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    This library is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
+    License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to the
+    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301, USA.
+*/
+#pragma once
+
+#include <QObject>
+#include <QVariant>
+#include <QVector>
+
+namespace Kube {
+/**
+ * The Fabric is a publish/subscribe message bus to interconnect components in kube.
+ *
+ * It provides a background mesh ("the fabric"), that interconnects various parts of kube.
+ * This is useful as it allows us to decouple functionality from the UI components, and keeps us from writing unnecessary API
+ * for visual components to pass through all necessary information for interaction.
+ */
+namespace Fabric {
+
+class Fabric : public QObject {
+    Q_OBJECT
+public:
+    Q_INVOKABLE void postMessage(const QString &id, const QVariantMap &);
+};
+
+/**
+ * A message handler.
+ *
+ * Can beinstantiated from QML like so:
+ * Listener {
+ *   function onMessageReceived(msg) {
+ *      ...do something
+ *   }
+ * }
+ */
+class Listener : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QString filter MEMBER mFilter)
+
+public:
+    Listener(QObject *parent = 0);
+    virtual ~Listener();
+
+    virtual void notify(const QString &id, const QVariantMap &notification);
+
+signals:
+    void messageReceived(const QVariantMap &message);
+
+private:
+    QString mFilter;
+};
+
+}
+}
-- 
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