Function callback

lib/web/CodeMirror/test/vim_test.js:1159–1162

(arg)

testVim('on_mode_change', function(cm, vim, helpers) {
  var modeHist = [];
  function callback(arg) {
    var subMode = arg.subMode ? ':' + arg.subMode : '';
    modeHist.push(arg.mode + subMode);
  }
  helpers.doKeys('<Esc>', '<Esc>');
  cm.on('vim-mode-change', callback);
  function test(key, mode) {