From 06f646aec4dbce64d28bae1be6111bd833f8e79e Mon Sep 17 00:00:00 2001
From: Paul Nettle <nettle.paul@gmail.com>
Date: Fri, 25 Aug 2017 09:30:39 -0500
Subject: Initial version 1.0

---
 src/DBusMethod.cpp | 88 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 src/DBusMethod.cpp

(limited to 'src/DBusMethod.cpp')

diff --git a/src/DBusMethod.cpp b/src/DBusMethod.cpp
new file mode 100644
index 0000000..716a454
--- /dev/null
+++ b/src/DBusMethod.cpp
@@ -0,0 +1,88 @@
+// Copyright 2017 Paul Nettle.
+//
+// This file is part of Gobbledegook.
+//
+// Gobbledegook is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Gobbledegook 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Gobbledegook.  If not, see <http://www.gnu.org/licenses/>.
+
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// >>
+// >>>  INSIDE THIS FILE
+// >>
+//
+// This is a representation of a D-Bus interface method.
+//
+// >>
+// >>>  DISCUSSION
+// >>
+//
+// Methods are identified by their name (such as "ReadValue" or "WriteValue"). They have argument definitions (defined as part of
+// their interface) that describe the type of arguments passed into the method and returned from the method.
+//
+// In addition to the method itself, we also store a callback delegate that is responsible for performing the tasks for this method.
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+#include <gio/gio.h>
+#include <string>
+#include <vector>
+
+#include "DBusMethod.h"
+
+// Instantiate a named method on a given interface (pOwner) with a given set of arguments and a callback delegate
+DBusMethod::DBusMethod(const DBusInterface *pOwner, const std::string &name, const char *pInArgs[], const char *pOutArgs, Callback callback)
+: pOwner(pOwner), name(name), callback(callback)
+{
+	const char **ppInArg = pInArgs;
+	while(*ppInArg)
+	{
+		this->inArgs.push_back(std::string(*ppInArg));
+		ppInArg++;
+	}
+
+	if (nullptr != pOutArgs)
+	{
+		this->outArgs = pOutArgs;
+	}
+}
+
+// Internal method used to generate introspection XML used to describe our services on D-Bus
+std::string DBusMethod::generateIntrospectionXML(int depth) const
+{
+	std::string prefix;
+	prefix.insert(0, depth * 2, ' ');
+
+	std::string xml = std::string();
+
+	xml += prefix + "<method name='" + getName() + "'>\n";
+
+	// Add our input arguments
+	for (const std::string &inArg : getInArgs())
+	{
+		xml += prefix + "  <arg type='" + inArg + "' direction='in'>\n";
+		xml += prefix + "    <annotation name='org.gtk.GDBus.C.ForceGVariant' value='true' />\n";
+		xml += prefix + "  </arg>\n";
+	}
+
+	const std::string &outArgs = getOutArgs();
+	if (!outArgs.empty())
+	{
+		xml += prefix + "  <arg type='" + outArgs + "' direction='out'>\n";
+		xml += prefix + "    <annotation name='org.gtk.GDBus.C.ForceGVariant' value='true' />\n";
+		xml += prefix + "  </arg>\n";
+	}
+
+	xml += prefix + "</method>\n";
+
+	return xml;
+}
-- 
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