- add ajax /console/clear - fix #348

esp-link/main.c

@@ -88,6 +88,7 @@ HttpdBuiltInUrl builtInUrls[] = {
   { "/log/reset", cgiReset, NULL },
   { "/console/reset", ajaxConsoleReset, NULL },
   { "/console/baud", ajaxConsoleBaud, NULL },
+  { "/console/clear", ajaxConsoleClear, NULL },
   { "/console/fmt", ajaxConsoleFormat, NULL },
   { "/console/text", ajaxConsole, NULL },
   { "/console/send", ajaxConsoleSend, NULL },

html/console.html

@@ -91,7 +91,10 @@
     $("#clear-button").addEventListener("click", function(e) {
         e.preventDefault();
         var co = $("#console");
-        co.innerHTML = "";
+        ajaxSpin('POST', "/console/clear",
+          function(resp) { showNotification("uC buffer cleared"); co.innerHTML = ""; co.textEnd = 0;},
+          function(s, st) { showWarning("Error clearing buffer in uC"); }
+        );
     });
 
     ajaxJson('GET', "/console/baud",

serial/console.c

@@ -59,6 +59,15 @@ ajaxConsoleReset(HttpdConnData *connData) {
   return HTTPD_CGI_DONE;
 }
 
+int ICACHE_FLASH_ATTR
+ajaxConsoleClear(HttpdConnData *connData) {
+  if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
+  jsonHeader(connData, 200);
+  //reset buffer
+  console_rd = console_wr = console_pos = 0;
+  return HTTPD_CGI_DONE;
+}
+
 int ICACHE_FLASH_ATTR
 ajaxConsoleBaud(HttpdConnData *connData) {
   if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.

serial/console.h

@@ -7,6 +7,7 @@ void consoleInit(void);
 void ICACHE_FLASH_ATTR console_write_char(char c);
 int ajaxConsole(HttpdConnData *connData);
 int ajaxConsoleReset(HttpdConnData *connData);
+int ajaxConsoleClear(HttpdConnData *connData);
 int ajaxConsoleBaud(HttpdConnData *connData);
 int ajaxConsoleFormat(HttpdConnData *connData);
 int ajaxConsoleSend(HttpdConnData *connData);