input: Add null input implementation

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/src/input.cpp b/src/input.cpp
index bab9b08..5403ce0 100644
--- a/src/input.cpp
+++ b/src/input.cpp
@@ -60,9 +60,22 @@ private:
 	bool inited = false;
 };
 
+class TtyInputNull : public TtyInput {
+	friend class TtyInput;
+
+public:
+	void switchVc(bool enter);
+	void setRawMode(bool raw, bool force = false);
+	void showInfo(bool verbose);
+
+protected:
+	TtyInputNull();
+};
+
 TtyInput *TtyInput::createInstance()
 {
 	s8 buf[64];
+
 	if (ttyname_r(STDIN_FILENO, buf, sizeof(buf))) {
 		fprintf(stderr, "stdin isn't a tty!\n");
 		return 0;
@@ -329,3 +342,19 @@ void TtyInputVT::processRawKeys(s8 *buf, u32 len)
 
 	if (shell && len > start) shell->keyInput(buf + start, len - start);
 }
+
+void TtyInputNull::switchVc(bool enter)
+{
+}
+
+void TtyInputNull::setRawMode(bool raw, bool force)
+{
+}
+
+void TtyInputNull::showInfo(bool verbose)
+{
+}
+
+TtyInputNull::TtyInputNull()
+{
+}