How to send value into codeMirror textfield through Selenium webdriver

Question

How do I set the value to codeMirror text field through Selenium.

I am able to click on the text field through xpath.

But not able to set a value to it.

I tried using sendKeys() method, but it's not working.

I also tried first clicking the text field and then using sendkey() method, still no luck

Following is the xpath

 driver.findElement(By.xpath("//html/body/div[2]/div[2]/div/div/div[2]/div/div/div/div/div[1]/div[3]/div/div[5]/div/div[1]/div/div/div/div[3]/div[1]/pre"))

Edit: HTML code is as mentioned below

<div class="CodeMirror-scroll" tabindex="-1" draggable="true">
<div style="position: relative; min-height: 100%;">
<div class="CodeMirror-sizer" style="margin-left: 29px; min-height:75.5px;">
<div style="position: relative; top: 0px;">
<div class="CodeMirror-lines">
<div style="position: relative; outline: medium none;">
<div class="CodeMirror-measure">
<pre>
</div>
<div style="position: relative; z-index: 1; display: none;"></div>
<div style="">
<div style="position: relative;">
<div style="position: relative;">
<div style="position: relative;">
<div style="position: relative;">
<div style="position: relative;">
</div>
<div class="CodeMirror-cursor" style="left: 4px; top: 0px; height: 14px;"> 
</div>

Answer 1

I have had a play with the field. Newly entered text creates a new tag depending on where it is entered.

    <!-- Create a simple CodeMirror instance -->
<link rel="stylesheet" href="lib/codemirror.css">
<script src="lib/codemirror.js"></script>
<script>
  var editor = CodeMirror.fromTextArea(myTextarea, {
    monkey
    lineNumbers: true
  });
  monkey
</script>

These changes then create new values as follows.

 <pre class=" CodeMirror-line ">
<span style="padding-right: 0.1px;">    
<span class="cm-property">monkey</span></span>
</pre>

and

    <span style="padding-right: 0.1px;">  
<span class="cm-variable">monkey</span></span>

Realistically, this will mean you need to insert the value in the specific location (xpath) required and I don't think you can accomplish it by simply selecting the box and sending keys.