Restore cursor and clean screen below cursor after command

Blink/Repl.h

@@ -38,6 +38,7 @@
 
 - (void)sigwinch;
 - (void)loopWithCallback:(BOOL(^)(NSString *cmd)) callback;
+- (void)clearToEnd;
 
 - (int)clear_main:(int)argc argv:(char **)argv;
 - (int)history_main:(int)argc argv:(char **)argv;

Blink/Repl.m

@@ -534,7 +534,13 @@ - (void)loopWithCallback:(BOOL(^)(NSString *cmd)) callback
     if (!callback(cmdline)) {
       break;
     }
-
+
+    dispatch_sync(dispatch_get_main_queue(), ^{
+      [_device.view restore];
+    });
+
+    replxx_clear_screen_to_end(_replxx);
+
     printf("\033]0;blink\007");
     [_device setRawMode:NO];
   }
@@ -543,6 +549,10 @@ - (void)loopWithCallback:(BOOL(^)(NSString *cmd)) callback
 //  _replxx = nil;
 }
 
+- (void)clearToEnd {
+
+}
+
 - (NSString *)_input:(char *)prompt
 {
   if (_replxx == nil || _stream.in == NULL) {

Blink/TermJS.h

@@ -176,5 +176,9 @@ NSString *term_setAutoCarriageReturn(BOOL state)
   return [NSString stringWithFormat:@"term_setAutoCarriageReturn(%@);", state ? @"true" : @"false"];
 }
 
+NSString *term_restore() {
+  return @"term_restore()";
+}
+
 
 #endif /* TermJS_h */

Blink/TermView.h

@@ -80,6 +80,7 @@
 - (void)pasteSelection:(id _Nullable)sender;
 - (void)terminate;
 - (void)reset;
+- (void)restore;
 
 - (void)blur;
 - (void)focus;

Blink/TermView.m

@@ -268,6 +268,11 @@ - (void)reset
   [_webView evaluateJavaScript:term_reset() completionHandler:nil];
 }
 
+- (void)restore
+{
+  [self _evalJSScript:term_restore()];
+}
+
 - (void)increaseFontSize
 {
   [_webView evaluateJavaScript:term_increaseFontSize() completionHandler:nil];

Blink/replxx/include/replxx.h

@@ -260,6 +260,7 @@ char const* replxx_history_line( Replxx*, int index );
 int replxx_history_save( Replxx*, const char* filename );
 int replxx_history_load( Replxx*, const char* filename );
 void replxx_clear_screen( Replxx* );
+void replxx_clear_screen_to_end( Replxx* );
 void replxx_debug_dump_print_codes(void);
 /* the following is extension to the original linenoise API */
 int replxx_install_window_change_handler( Replxx* );

Blink/replxx/src/replxx.cxx

@@ -390,6 +390,11 @@ char const* Replxx::ReplxxImpl::input( std::string const& prompt ) {
 void Replxx::ReplxxImpl::clear_screen( void ) {
 	replxx::clear_screen( CLEAR_SCREEN::WHOLE );
 }
+
+void Replxx::ReplxxImpl::clear_screen_to_end( void ) {
+  replxx::clear_screen( CLEAR_SCREEN::TO_END );
+}
+
 
 int Replxx::ReplxxImpl::install_window_change_handler( void ) {
 #ifndef _WIN32
@@ -607,6 +612,11 @@ void replxx_clear_screen( ::Replxx* replxx_ ) {
 	return ( replxx->clear_screen() );
 }
 
+void replxx_clear_screen_to_end( ::Replxx* replxx_ ) {
+  replxx::Replxx::ReplxxImpl* replxx( reinterpret_cast<replxx::Replxx::ReplxxImpl*>( replxx_ ) );
+  return ( replxx->clear_screen_to_end() );
+}
+
 /**
  * replxx_set_preload_buffer provides text to be inserted into the command buffer
  *

Blink/replxx/src/replxx_impl.hxx

@@ -91,6 +91,7 @@ public:
 	void set_no_color( bool val );
 	void set_max_history_size( int len );
 	void clear_screen( void );
+  void clear_screen_to_end(void);
 	int install_window_change_handler( void );
   int window_changed( void );
 	completions_t call_completer( std::string const& input, int breakPos ) const;

Resources/term.js

@@ -426,3 +426,9 @@ function term_applySexyTheme(theme) {
 function term_setAutoCarriageReturn(state) {
   t.setAutoCarriageReturn(state);
 }
+
+function term_restore() {
+  t.primaryScreen_.textAttributes.reset();
+  t.setVTScrollRegion(null, null);
+  t.setCursorVisible(true);
+}