Function ensureFocus

static/editor.md/lib/codemirror/lib/codemirror.js:1066–1068

(cm)

  // INPUT HANDLING

  function ensureFocus(cm) {
    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
  }

  function isReadOnly(cm) {
    return cm.options.readOnly || cm.doc.cantEdit;