nixpkgs/pkgs/applications/networking/p2p/ktorrent/drop-taskmanager-dependency.patch

commit 6d4a6ae51692966862ccb20d17cb217717519d40
Author: Joris Guisson <joris.guisson@gmail.com>
Date:   Wed Nov 23 20:17:08 2011 +0100

    Use dbus to show ktorrent window from plasma applet. This removes the dependency on libtaskmanager.
    
    BUG: 287309
Changelog removed by Yury G. Kudryashov

diff --git a/plasma/applet/CMakeLists.txt b/plasma/applet/CMakeLists.txt
index 3a72241..4307cf2 100644
--- a/plasma/applet/CMakeLists.txt
+++ b/plasma/applet/CMakeLists.txt
@@ -5,25 +5,15 @@ if(NOT QT_VERSION_OK)
 
 else(NOT QT_VERSION_OK)
 	
-	set(TASKMANAGER_FOUND FALSE)
-	FIND_PATH(TASKMANAGER_INCLUDE_DIR NAMES taskmanager.h  PATHS ${KDE4_INCLUDE_DIR}/taskmanager ${INCLUDE_INSTALL_DIR}/taskmanager.h)
-	FIND_LIBRARY(TASKMANAGER_LIBRARY NAMES taskmanager PATHS ${KDE4_LIB_DIR} ${LIB_INSTALL_DIR})
-
-	if(TASKMANAGER_INCLUDE_DIR AND TASKMANAGER_LIBRARY)
-		set(TASKMANAGER_FOUND TRUE)
-		message(STATUS "Found libtaskmanager: ${TASKMANAGER_LIBRARY} ")
-		include_directories(${TASKMANAGER_INCLUDE_DIR})
-		set(ktapplet_SRCS applet.cpp chunkbar.cpp fadingitem.cpp fadingnavigationwidget.cpp)
-		
-		kde4_add_ui_files(ktapplet_SRCS appletconfig.ui)
-		
-		kde4_add_plugin(plasma_applet_ktorrent ${ktapplet_SRCS})
-		target_link_libraries(plasma_applet_ktorrent  ${KDE4_PLASMA_LIBS} ${KDE4_KIO_LIBS} ${TASKMANAGER_LIBRARY} ${LIBKTORRENT_LIBRARIES} ktcore)
-		
-		install(TARGETS plasma_applet_ktorrent DESTINATION ${PLUGIN_INSTALL_DIR})
-		install(FILES plasma-applet-ktorrent.desktop DESTINATION ${SERVICES_INSTALL_DIR})
-	endif(TASKMANAGER_INCLUDE_DIR AND TASKMANAGER_LIBRARY)
-
-	macro_log_feature(TASKMANAGER_FOUND "libtaskmanager" "libtaskmanager library and header files" "http://www.kde.org/" FALSE "" "libtaskmanager is needed for KTorrent Plasmoid")
+	
+	set(ktapplet_SRCS applet.cpp chunkbar.cpp fadingitem.cpp fadingnavigationwidget.cpp)
+	
+	kde4_add_ui_files(ktapplet_SRCS appletconfig.ui)
+	
+	kde4_add_plugin(plasma_applet_ktorrent ${ktapplet_SRCS})
+	target_link_libraries(plasma_applet_ktorrent  ${KDE4_PLASMA_LIBS} ${KDE4_KIO_LIBS} ${LIBKTORRENT_LIBRARIES} ktcore)
+	
+	install(TARGETS plasma_applet_ktorrent DESTINATION ${PLUGIN_INSTALL_DIR})
+	install(FILES plasma-applet-ktorrent.desktop DESTINATION ${SERVICES_INSTALL_DIR})
 
 endif(NOT QT_VERSION_OK)
diff --git a/plasma/applet/applet.cpp b/plasma/applet/applet.cpp
index 59e7191..bf09479 100644
--- a/plasma/applet/applet.cpp
+++ b/plasma/applet/applet.cpp
@@ -21,6 +21,9 @@
 #include "applet.h"
 #include <QFile>
 #include <QGraphicsLinearLayout>
+#include <QDBusConnection>
+#include <QDBusConnectionInterface>
+#include <QDBusMessage>
 #include <KConfigDialog>
 #include <KLocale>
 #include <KRun>
@@ -31,12 +34,11 @@
 #include <Plasma/IconWidget>
 #endif
 #include <Plasma/Label>
-#include <taskmanager/taskmanager.h>
-#include <taskmanager/task.h>
 #include <util/functions.h>
 #include "chunkbar.h"
 #include "fadingnavigationwidget.h"
 
+
 using namespace bt;
 
 namespace ktplasma
@@ -174,7 +176,8 @@ namespace ktplasma
 		}
 	}
 
-	void Applet::updateNavigation() {
+	void Applet::updateNavigation() 
+	{
 		navigation->setEnabled(connected_to_app && !sources.empty()
 			&& (sources.count() > 1 || !sources.contains(current_source)));
 	}
@@ -193,12 +196,14 @@ namespace ktplasma
 		}
 	}
 	
-	void Applet::updateSources() {
+	void Applet::updateSources() 
+	{
 		sources = engine->sources();
 		sources.removeOne("core");
 	}
 
-	void Applet::setSource(QString source) {
+	void Applet::setSource(QString source) 
+	{
 		if (!current_source.isEmpty())
 			engine->disconnectSource(current_source,this);
 		clearData();
@@ -340,20 +345,39 @@ namespace ktplasma
 
 	void Applet::iconClicked()
 	{
-		TaskManager::TaskDict tasks = TaskManager::TaskManager::self()->tasks();
-		for (TaskManager::TaskDict::iterator i = tasks.begin();i != tasks.end();i ++)
+		QDBusConnection session_bus = QDBusConnection::sessionBus();
+		QDBusConnectionInterface* dbus_service = session_bus.interface();
+		if (!session_bus.isConnected() || !dbus_service || !dbus_service->isServiceRegistered("org.ktorrent.ktorrent"))
 		{
-			if (i.value()->className() == "ktorrent")
-			{
-				KWindowSystem::activateWindow(i.key());
-				return;
-			}
+			// can't find the window, try launching it
+			KUrl::List empty;
+			KRun::run("ktorrent", empty, 0);
+		}
+		else
+		{
+			QDBusMessage msg = QDBusMessage::createMethodCall("org.ktorrent.ktorrent", "/ktorrent/MainWindow_1", "org.kde.KMainWindow", "winId");
+			QDBusPendingCall call = session_bus.asyncCall(msg, 5000);
+			QDBusPendingCallWatcher* watcher = new QDBusPendingCallWatcher(call ,this);
+			connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)), this, SLOT(dbusCallFinished(QDBusPendingCallWatcher*)));
 		}
-
-		// can't find the window, try launching it
-		KUrl::List empty;
-		KRun::run("ktorrent", empty, 0);
 	}
+	
+	void Applet::dbusCallFinished(QDBusPendingCallWatcher* self)
+	{
+		if (self->isError())
+		{
+			// call failed, try launching it
+			KUrl::List empty;
+			KRun::run("ktorrent", empty, 0);
+		}
+		else
+		{
+			QDBusPendingReply<qlonglong> reply = *self;
+			KWindowSystem::activateWindow(reply.value());		
+		}
+		self->deleteLater();
+	}
+
 
 	void Applet::clearData()
 	{		
diff --git a/plasma/applet/applet.h b/plasma/applet/applet.h
index 29b3265..d396118 100644
--- a/plasma/applet/applet.h
+++ b/plasma/applet/applet.h
@@ -27,6 +27,7 @@
 #include "fadingnavigationwidget.h"
 
 class QGraphicsLinearLayout;
+class QDBusPendingCallWatcher;
 
 namespace Plasma
 {
@@ -68,6 +69,7 @@ namespace ktplasma
 		void iconClicked();
 		void selectPrev();
 		void selectNext();
+		void dbusCallFinished(QDBusPendingCallWatcher* self);
 		
 	private:
 		void updateTorrentCombo();