I am not able to use keyboard events on ipad safari

I am getting org.openqa.selenium.WebDriverException: Method is not implemented when try to execute below lines of code on iPad safari browser:
new Actions(webBrowser.getWebDriver()).sendKeys(element, searchValue).
sendKeys(element, Keys.chord(Keys.CONTROL, “a”)).

Does anybody know how to handle keyboard events on the iPad. Below is my requirement:

  1. Enter some text in search box
  2. Select the entered text
  3. Clear the selected text