From 43e139235d1457fed093c270b81d5e16c1922fc1 Mon Sep 17 00:00:00 2001
From: Timothy Pearson <kb9vqf@pearsoncomputing.net>
Date: Mon, 15 Apr 2013 13:00:19 -0500
Subject: Add support for udisks2 device eject

---
 CMakeLists.txt                 |   1 +
 tdecore/tdehardwaredevices.cpp | 112 +++++++++++++++++++++++++++++++++++++++--
 tdecore/tdehardwaredevices.h   |   7 +++
 3 files changed, 117 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index fd195cf60..ca0a31b4d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -84,6 +84,7 @@ OPTION( WITH_GCC_VISIBILITY "Enable fvisibility and fvisibility-inlines-hidden"
 OPTION( WITH_INOTIFY "Enable inotify support for tdeio" ON )
 OPTION( WITH_GAMIN "Enable FAM/GAMIN support" ${WITH_ALL_OPTIONS} )
 option( WITH_UPOWER "Enable UPOWER support" ${WITH_ALL_OPTIONS} )
+option( WITH_UDISKS2 "Enable UDISKS2 support" ${WITH_ALL_OPTIONS} )
 OPTION( WITH_NETWORK_MANAGER_BACKEND "Enable network-manager support" OFF )
 OPTION( WITH_SUDO_TDESU_BACKEND "Use sudo as backend for tdesu (default is su)" OFF )
 
diff --git a/tdecore/tdehardwaredevices.cpp b/tdecore/tdehardwaredevices.cpp
index b8d6cf29f..3ed8661b6 100644
--- a/tdecore/tdehardwaredevices.cpp
+++ b/tdecore/tdehardwaredevices.cpp
@@ -67,14 +67,19 @@
 	#include "networkbackends/network-manager/network-manager.h"
 #endif // WITH_NETWORK_MANAGER_BACKEND
 
-// uPower integration
-#ifdef WITH_UPOWER
+// uPower and uDisks2 integration
+#if defined(WITH_UPOWER) || defined(WITH_UDISKS2)
 	#include <tqdbusdata.h>
 	#include <tqdbusmessage.h>
 	#include <tqdbusproxy.h>
 	#include <tqdbusvariant.h>
 	#include <tqdbusconnection.h>
-#endif // WITH_NETWORK_MANAGER_BACKEND
+#endif // defined(WITH_UPOWER) || defined(WITH_UDISKS2)
+#ifdef WITH_UDISKS2
+	#include <tqdbuserror.h>
+	#include <tqdbusdatamap.h>
+	#include <tqdbusobjectpath.h>
+#endif // WITH_UDISKS2
 
 // BEGIN BLOCK
 // Copied from include/linux/genhd.h
@@ -449,6 +454,107 @@ bool TDEStorageDevice::lockDriveMedia(bool lock) {
 	}
 }
 
+bool ejectDriveUDisks2(TDEStorageDevice* sdevice) {
+#ifdef WITH_UDISKS2
+	TQT_DBusConnection dbusConn = TQT_DBusConnection::addConnection(TQT_DBusConnection::SystemBus);
+	if (dbusConn.isConnected()) {
+		TQString blockDeviceString = sdevice->deviceNode();
+		blockDeviceString.replace("/dev/", "");
+		blockDeviceString = "/org/freedesktop/UDisks2/block_devices/" + blockDeviceString;
+		TQT_DBusProxy hardwareControl("org.freedesktop.UDisks2", blockDeviceString, "org.freedesktop.DBus.Properties", dbusConn);
+
+		// get associated udisks2 drive path
+		TQT_DBusError error;
+		TQValueList<TQT_DBusData> params;
+		params << TQT_DBusData::fromString("org.freedesktop.UDisks2.Block") << TQT_DBusData::fromString("Drive");
+		TQT_DBusMessage reply = hardwareControl.sendWithReply("Get", params, &error);
+		if (error.isValid()) {
+			// Error!
+			printf("[ERROR] %s\n\r", error.name().ascii()); fflush(stdout);
+			return FALSE;
+		}
+		else {
+			if (reply.type() == TQT_DBusMessage::ReplyMessage && reply.count() == 1) {
+				TQT_DBusObjectPath driveObjectPath = reply[0].toVariant().value.toObjectPath();
+				if (!driveObjectPath.isValid()) {
+					return FALSE;
+				}
+
+				error = TQT_DBusError();
+				TQT_DBusProxy driveInformation("org.freedesktop.UDisks2", driveObjectPath, "org.freedesktop.DBus.Properties", dbusConn);
+				// can eject?
+				TQValueList<TQT_DBusData> params;
+				params << TQT_DBusData::fromString("org.freedesktop.UDisks2.Drive") << TQT_DBusData::fromString("Ejectable");
+				TQT_DBusMessage reply = driveInformation.sendWithReply("Get", params, &error);
+				if (error.isValid()) {
+					// Error!
+					printf("[ERROR] %s\n\r", error.name().ascii()); fflush(stdout);
+					return FALSE;
+				}
+				if (reply.type() == TQT_DBusMessage::ReplyMessage && reply.count() == 1) {
+					bool ejectable = reply[0].toVariant().value.toBool();
+					if (!ejectable) {
+						return FALSE;
+					}
+
+					// Eject the drive!
+					TQT_DBusProxy driveControl("org.freedesktop.UDisks2", driveObjectPath, "org.freedesktop.UDisks2.Drive", dbusConn);
+					TQValueList<TQT_DBusData> params;
+					TQT_DBusDataMap<TQString> options(TQT_DBusData::Variant);
+					params << TQT_DBusData::fromStringKeyMap(options);
+					TQT_DBusMessage reply = driveControl.sendWithReply("Eject", params, &error);
+					if (error.isValid()) {
+						// Error!
+						printf("[ERROR] %s\n\r", error.name().ascii()); fflush(stdout);
+						return FALSE;
+					}
+					else {
+						return TRUE;
+					}
+				}
+				else {
+					return FALSE;
+				}
+			}
+			else {
+				return FALSE;
+			}
+		}
+	}
+	else {
+		return FALSE;
+	}
+#else // WITH_UDISKS2
+	return FALSE;
+#endif // WITH_UDISKS2
+}
+
+bool TDEStorageDevice::ejectDrive() {
+	if (ejectDriveUDisks2(this)) {
+		return TRUE;
+	}
+	else {
+		TQString command = TQString("eject -v '%1' 2>&1").arg(deviceNode());
+
+		FILE *exepipe = popen(command.ascii(), "r");
+		if (exepipe) {
+			TQString pmount_output;
+			char buffer[8092];
+			pmount_output = fgets(buffer, sizeof(buffer), exepipe);
+			int retcode = pclose(exepipe);
+			if (retcode == 0) {
+				return TRUE;
+			}
+			else {
+				return FALSE;
+			}
+		}
+		else {
+			return FALSE;
+		}
+	}
+}
+
 bool TDEStorageDevice::ejectDriveMedia() {
 	int fd = open(deviceNode().ascii(), O_RDWR | O_NONBLOCK);
 	if (fd < 0) {
diff --git a/tdecore/tdehardwaredevices.h b/tdecore/tdehardwaredevices.h
index a31fc8eef..4c9b74940 100644
--- a/tdecore/tdehardwaredevices.h
+++ b/tdecore/tdehardwaredevices.h
@@ -668,6 +668,13 @@ class TDECORE_EXPORT TDEStorageDevice : public TDEGenericDevice
 		*/
 		bool ejectDriveMedia();
 
+		/**
+		* @return TRUE on success, FALSE on failure
+		*
+		* This method currently works on all removable storage devices
+		*/
+		bool ejectDrive();
+
 	protected:
 		/**
 		* @param a TQString with the disk or partition label, if any
-- 
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