Force input polling before running key handlers

This makes it impossible for the handlers to see an outdated view of the
content.

Author: marijnh

lib/codemirror.js

@@ -524,6 +524,7 @@ var CodeMirror = (function() {
     function onKeyDown(e) {
       if (!focused) onFocus();
       if (ie && e.keyCode == 27) { e.returnValue = false; }
+      if (pollingFast) { if (readInput()) pollingFast = false; }
       if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
       var code = e_prop(e, "keyCode");
       // IE does strange things with escape.
@@ -538,6 +539,7 @@ var CodeMirror = (function() {
       }
     }
     function onKeyPress(e) {
+      if (pollingFast) readInput();
       if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
       var keyCode = e_prop(e, "keyCode"), charCode = e_prop(e, "charCode");
       if (window.opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}

mode/xml/index.html

@@ -25,8 +25,7 @@ <h1>CodeMirror: XML mode</h1>
     <script>
       var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
         mode: {name: "xml", alignCDATA: true},
-        lineNumbers: true,
-        onChange: function() { editor.save(); }
+        lineNumbers: true
       });
     </script>
     <p>The XML mode supports two configuration parameters:</p>