1 files changed, 20 insertions, 0 deletions
diff --git a/src/emrun_postjs.js b/src/emrun_postjs.js
new file mode 100644
index 00000000..eec203ec
--- /dev/null
+++ b/src/emrun_postjs.js
@@ -0,0 +1,20 @@
+function emrun_register_handlers() {
+  function post(msg) {
+    var http = new XMLHttpRequest();
+    http.open("POST", "stdio.html", true);
+    http.send(msg);
+  }
+  // If the address contains localhost, or we are running the page from port 6931, we can assume we're running the test runner and should post stdout logs.
+  if (document.URL.search("localhost") != -1 || document.URL.search(":6931/") != -1) {
+    var emrun_http_sequence_number = 1;
+    var prevExit = Module['exit'];
+    var prevPrint = Module['print'];
+    var prevErr = Module['printErr'];
+    Module['exit'] = function emrun_exit(returncode) { post('^exit^'+returncode); prevExit(returncode); }
+    Module['print'] = function emrun_print(text) { post('^out^'+(emrun_http_sequence_number++)+'^'+text); prevPrint(text); }
+    Module['printErr'] = function emrun_printErr(text) { post('^err^'+(emrun_http_sequence_number++)+'^'+text); prevErr(text); }
+  }
+  // Notify emrun web server that this browser has successfully launched the page.
+  post('^pageload^');
+}
+emrun_register_handlers();