4 files changed, 58 insertions, 1 deletions

diff --git a/src/AglShellGrpcClient.cpp b/src/AglShellGrpcClient.cpp
index 0840d28..7f1ce20 100644
--- a/src/AglShellGrpcClient.cpp
+++ b/src/AglShellGrpcClient.cpp
@@ -70,3 +70,24 @@ GrpcClient::AppStatusState(Callback callback)
 {
 	reader->AppStatusState(callback);
 }
+
+std::vector<std::string>
+GrpcClient::GetOutputs()
+{
+	grpc::ClientContext context;
+	std::vector<std::string> v;
+
+	::agl_shell_ipc::OutputRequest request;
+	::agl_shell_ipc::ListOutputResponse response;
+
+	grpc::Status status = m_stub->GetOutputs(&context, request, &response);
+	if (!status.ok())
+		return std::vector<std::string>();
+
+	for (int i = 0; i < response.outputs_size(); i++) {
+		::agl_shell_ipc::OutputResponse rresponse = response.outputs(i);
+		v.push_back(rresponse.name());
+	}
+
+	return v;
+}
diff --git a/src/AglShellGrpcClient.h b/src/AglShellGrpcClient.h
index 50531f9..aedde07 100644
--- a/src/AglShellGrpcClient.h
+++ b/src/AglShellGrpcClient.h
@@ -92,6 +92,7 @@ public:
 	GrpcClient();
 	bool ActivateApp(const std::string& app_id, const std::string& output_name);
 	bool DeactivateApp(const std::string& app_id);
+	std::vector<std::string> GetOutputs();
 	void GetAppState();
 	void AppStatusState(Callback callback);
 	grpc::Status Wait();
diff --git a/src/agl_shell.proto b/src/agl_shell.proto
index 9cf238a..22fad1c 100644
--- a/src/agl_shell.proto
+++ b/src/agl_shell.proto
@@ -9,6 +9,7 @@ service AglShellManagerService {
        rpc SetAppSplit(SplitRequest)				returns (SplitResponse) {}
        rpc SetAppFloat(FloatRequest)				returns (FloatResponse) {}
        rpc AppStatusState(AppStateRequest)			returns (stream AppStateResponse) {}
+       rpc GetOutputs(OutputRequest)				returns (ListOutputResponse) {}
 }
 
 message ActivateRequest {
@@ -48,3 +49,14 @@ message AppStateResponse {
 	int32 state = 1;
 	string app_id = 2;
 }
+
+message OutputRequest {
+};
+
+message OutputResponse {
+	string name = 1;
+};
+
+message ListOutputResponse {
+	repeated OutputResponse outputs = 1;
+};
diff --git a/src/main.cpp b/src/main.cpp
index 7ebde3b..24f3288 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -46,6 +46,7 @@ enum action_state {
 	DEACTIVATE,
 	SET_FLOAT,
 	SET_SPLIT,
+	GETOUTPUTS,
 };
 
 static struct action {
@@ -54,6 +55,7 @@ static struct action {
 } actions[] = {
 	{ ACTIVATE, 	 "ACTIVATE" 	},
 	{ DEACTIVATE, 	 "DEACTIVATE" 	},
+	{ GETOUTPUTS, 	 "GETOUTPUTS" 	},
 };
 
 static int
@@ -80,6 +82,10 @@ help(char **argv)
 {
 	fprintf(stderr, "Usage: %s [-a action] [-p app_id] [-o output_name] [-l]\n",
 			argv[0]);
+	fprintf(stderr, "\t-a -- action activate|deactivate|getoutputs\n");
+	fprintf(stderr, "\t-p -- app_id application_id\n");
+	fprintf(stderr, "\t-o -- output_name one of the outputs from getoutputs action\n");
+	fprintf(stderr, "\t-l -- continuously listen for window state events\n");
 	exit(EXIT_FAILURE);
 }
 
@@ -91,6 +97,20 @@ app_status_callback(::agl_shell_ipc::AppStateResponse app_response)
 		app_response.state() << std::endl;
 }
 
+static void
+read_outputs(GrpcClient *client)
+{
+	std::vector<std::string> outputs = client->GetOutputs();
+
+	if (outputs.empty())
+		return;
+
+	for (size_t i = 0; i < outputs.size(); i++)
+		fprintf(stderr, " %s ", outputs[i].c_str());
+
+	fprintf(stderr, "\n");
+}
+
 int main(int argc, char *argv[])
 {
 	char *output = NULL;
@@ -101,7 +121,7 @@ int main(int argc, char *argv[])
 	std::thread th;
 
 	// app_id, output p[0] -> name, p[1] action, p[2] app_id, p[3] -> output
-	while ((opt = getopt(argc, argv, "a:p:o:lh")) != -1) {
+	while ((opt = getopt(argc, argv, "a:p:o:lsh")) != -1) {
 		switch (opt) {
 		case 'p':
 			app_id = optarg;
@@ -153,6 +173,9 @@ int main(int argc, char *argv[])
 		fprintf(stderr, "Deactivating application '%s'\n", app_id);
 		client->DeactivateApp(std::string(app_id));
 		break;
+	case GETOUTPUTS:
+		read_outputs(client);
+		break;
 	default:
 		// allow listen flag to be passed
 		if (listen_flag)