Fix a few bugs in profilers.

* Legacy was launching before the profiler.
* Some clarity changes.
* Report problem with empty strings as profiler paths.

depends/launcher/org/multimc/EntryPoint.java

@@ -29,7 +29,8 @@ public class EntryPoint
 	private enum Action
 	{
 		Proceed,
-		Launch
+		Launch,
+		Abort
 	}
 
 	public static void main(String[] args)
@@ -62,8 +63,17 @@ public class EntryPoint
 	{
 		String[] pair = inData.split(" ", 2);
 
-		if(pair.length == 1 && pair[0].equals("launch"))
-			return Action.Launch;
+		if(pair.length == 1)
+		{
+			String command = pair[0];
+			if (pair[0].equals("launch"))
+				return Action.Launch;
+
+			else if (pair[0].equals("abort"))
+				return Action.Abort;
+
+			else throw new ParseException();
+		}
 
 		if(pair.length != 2)
 			throw new ParseException();
@@ -109,6 +119,7 @@ public class EntryPoint
 			return 1;
 		}
 		boolean isListening = true;
+		boolean isAborted = false;
 		// Main loop
 		while (isListening)
 		{
@@ -119,7 +130,13 @@ public class EntryPoint
 				inData = buffer.readLine();
 				if (inData != null)
 				{
-					if(parseLine(inData) == Action.Launch)
+					Action a = parseLine(inData);
+					if(a == Action.Abort)
+					{
+						isListening = false;
+						isAborted = true;
+					}
+					if(a == Action.Launch)
 					{
 						isListening = false;
 					}
@@ -138,6 +155,11 @@ public class EntryPoint
 				return 1;
 			}
 		}
+		if(isAborted)
+		{
+			System.err.println("Launch aborted by MultiMC.");
+			return 1;
+		}
 		if(m_launcher != null)
 		{
 			return m_launcher.launch(m_params);

gui/MainWindow.cpp

@@ -1239,7 +1239,7 @@ void MainWindow::launchInstance(BaseInstance *instance, AuthSessionPtr session,
 	connect(console, SIGNAL(isClosing()), this, SLOT(instanceEnded()));
 
 	proc->setLogin(session);
-	proc->launch();
+	proc->arm();
 
 	if (profiler)
 	{
@@ -1247,6 +1247,7 @@ void MainWindow::launchInstance(BaseInstance *instance, AuthSessionPtr session,
 		if (!profiler->check(&error))
 		{
 			QMessageBox::critical(this, tr("Error"), tr("Couldn't start profiler: %1").arg(error));
+			proc->abort();
 			return;
 		}
 		BaseProfiler *profilerInstance = profiler->createProfiler(instance, this);
@@ -1267,14 +1268,14 @@ void MainWindow::launchInstance(BaseInstance *instance, AuthSessionPtr session,
 			msg.setIcon(QMessageBox::Information);
 			msg.addButton(tr("Launch"), QMessageBox::AcceptRole);
 			msg.exec();
-			proc->write("launch\n");
+			proc->launch();
 		});
 		profilerInstance->beginProfiling(proc);
 		dialog.exec();
 	}
 	else
 	{
-		proc->write("launch\n");
+		proc->launch();
 	}
 }
 

gui/dialogs/SettingsDialog.cpp

@@ -528,14 +528,15 @@ void SettingsDialog::on_jprofilerPathBtn_clicked()
 }
 void SettingsDialog::on_jprofilerCheckBtn_clicked()
 {
-	if (!ui->jprofilerPathEdit->text().isEmpty())
+	QString error;
+	if (!MMC->profilers()["jprofiler"]->check(ui->jprofilerPathEdit->text(), &error))
 	{
-		QString error;
-		if (!MMC->profilers()["jprofiler"]->check(ui->jprofilerPathEdit->text(), &error))
-		{
-			QMessageBox::critical(this, tr("Error"),
-								  tr("Error while checking JProfiler install:\n%1").arg(error));
-		}
+		QMessageBox::critical(this, tr("Error"),
+								tr("Error while checking JProfiler install:\n%1").arg(error));
+	}
+	else
+	{
+		QMessageBox::information(this, tr("OK"), tr("JProfiler setup seems to be OK"));
 	}
 }
 
@@ -553,13 +554,14 @@ void SettingsDialog::on_jvisualvmPathBtn_clicked()
 }
 void SettingsDialog::on_jvisualvmCheckBtn_clicked()
 {
-	if (!ui->jvisualvmPathEdit->text().isEmpty())
+	QString error;
+	if (!MMC->profilers()["jvisualvm"]->check(ui->jvisualvmPathEdit->text(), &error))
 	{
-		QString error;
-		if (!MMC->profilers()["jvisualvm"]->check(ui->jvisualvmPathEdit->text(), &error))
-		{
-			QMessageBox::critical(this, tr("Error"),
-								  tr("Error while checking JVisualVM install:\n%1").arg(error));
-		}
+		QMessageBox::critical(this, tr("Error"),
+								tr("Error while checking JVisualVM install:\n%1").arg(error));
+	}
+	else
+	{
+		QMessageBox::information(this, tr("OK"), tr("JVisualVM setup seems to be OK"));
 	}
 }

logic/LegacyInstance.cpp

@@ -77,7 +77,7 @@ MinecraftProcess *LegacyInstance::prepareForLaunch(AuthSessionPtr account)
 		launchScript += "windowTitle " + windowTitle() + "\n";
 		launchScript += "windowParams " + windowParams + "\n";
 		launchScript += "lwjgl " + lwjgl + "\n";
-		launchScript += "launch legacy\n";
+		launchScript += "launcher legacy\n";
 	}
 	proc->setLaunchScript(launchScript);
 

logic/MinecraftProcess.cpp

@@ -288,7 +288,7 @@ void MinecraftProcess::killMinecraft()
 	kill();
 }
 
-void MinecraftProcess::launch()
+void MinecraftProcess::arm()
 {
 	emit log("MultiMC version: " + MMC->version().toString() + "\n\n");
 	emit log("Minecraft folder is:\n" + workingDirectory() + "\n\n");
@@ -374,3 +374,17 @@ void MinecraftProcess::launch()
 	QByteArray bytes = launchScript.toUtf8();
 	writeData(bytes.constData(), bytes.length());
 }
+
+void MinecraftProcess::launch()
+{
+	QString launchString("launch\n");
+	QByteArray bytes = launchString.toUtf8();
+	writeData(bytes.constData(), bytes.length());
+}
+
+void MinecraftProcess::abort()
+{
+	QString launchString("abort\n");
+	QByteArray bytes = launchString.toUtf8();
+	writeData(bytes.constData(), bytes.length());
+}

logic/MinecraftProcess.h

@@ -55,10 +55,20 @@ public:
 	MinecraftProcess(BaseInstance *inst);
 
 	/**
-	 * @brief launch minecraft
+	 * @brief start the launcher part with the provided launch script
+	 */
+	void arm();
+
+	/**
+	 * @brief launch the armed instance!
 	 */
 	void launch();
 
+	/**
+	 * @brief abort launch!
+	 */
+	void abort();
+
 	BaseInstance *instance()
 	{
 		return m_instance;