Add run_external_console_command action for running terminal applications

CHANGELOG.md

@@ -1,5 +1,5 @@
 # ncmpcpp-0.9 (2020-12-??)
-* Restore curses window after running external command.
+* Add `run_external_console_command` action for running terminal applications.
 * Pass lyrics filename in single quotes to shell.
 * Add support for fetching lyrics from zeneszoveg.hu.
 * Add `Play` action for starting playback in stopped state.

doc/bindings

@@ -97,6 +97,10 @@
 ##    - run_external_command "command" - runs given command using
 ##      system() function.
 ##
+##    - run_external_console_command "command" - runs given console
+##      command using system() function.
+##
+##
 ## 5) In addition to binding to a key, you can also bind actions
 ##    or chains of actions to a command. If it comes to commands,
 ##    syntax is very similar to defining keys. Here goes example

src/bindings.cpp

@@ -201,6 +201,15 @@ std::shared_ptr<Actions::BaseAction> parseActionLine(const std::string &line, F
 			else
 				error() << "empty command passed to run_external_command\n";
 		}
+		else if (action_name == "run_external_console_command")
+		{
+			std::string command = getEnclosedString(line, '"', '"', 0);
+			if (!command.empty())
+				result = std::static_pointer_cast<Actions::BaseAction>(
+					std::make_shared<Actions::RunExternalConsoleCommand>(std::move(command)));
+			else
+				error() << "empty command passed to run_external_console_command\n";
+		}
 	}
 	return result;
 }

src/macro_utilities.cpp

@@ -88,7 +88,24 @@ RunExternalCommand::RunExternalCommand(std::string &&command)
 void RunExternalCommand::run()
 {
 	GNUC_UNUSED int res;
-	res = std::system((m_command + " >/dev/null 2>&1").c_str());
+	res = std::system(("nohup " + m_command + " >/dev/null 2>&1 &").c_str());
+}
+
+RunExternalConsoleCommand::RunExternalConsoleCommand(std::string &&command)
+	: BaseAction(Type::MacroUtility, "run_external_console_command")
+	, m_command(std::move(command))
+{
+	m_name += " \"";
+	m_name += m_command;
+	m_name += "\"";
+}
+
+void RunExternalConsoleCommand::run()
+{
+	GNUC_UNUSED int res;
+	NC::pauseScreen();
+	res = std::system(m_command.c_str());
+	NC::unpauseScreen();
 }
 
 }

src/macro_utilities.h

@@ -70,6 +70,16 @@ private:
 	std::string m_command;
 };
 
+struct RunExternalConsoleCommand: BaseAction
+{
+	RunExternalConsoleCommand(std::string &&command);
+
+private:
+	virtual void run() override;
+
+	std::string m_command;
+};
+
 }
 
 #endif // NCMPCPP_MACRO_UTILITIES_H