Require assistance with a hidden file upload element using Webdriver and JavaScript

I am currently facing a challenge with automating a file upload process in a client web application. The code snippet for the file upload form is provided below:

<td valign="top">
    <iframe id="batchLoad:inputFile:uploadFrame" class="iceInpFile" width="600px" scrolling="no" height="30px" frameborder="0" title="Input File Frame" style="border-collapse:collapse; border-spacing:0px; padding:0px;" src="/hip-webapp/block/resource/LTExMzg4MjQzMTY=/" name="batchLoad:inputFile:uploadFrame" marginwidth="0" marginheight="0" allowtransparency="true">
        <html style="overflow:hidden;">
            <head>
                <body style="background-color:transparent; overflow:hidden">
                    <form id="fileUploadForm" enctype="multipart/form-data" action="/hip-webap/uploadHtml" method="post">
                        <input type="hidden" value="batchLoad:inputFile" name="ice.component">
                        <input type="hidden" value="3" name="ice.view">
                        <input class="iceInpFileTxt" type="file" size="35" name="upload">
                        <input class="iceInpFileBtn" type="submit" value="Upload">
                    </form>
                </body>
        </html>
    </iframe>
    <br>
    <span id="batchLoad:j_id537"></span>
</td>

My attempt to use the traditional file upload method was unsuccessful.

For reference, please see: Selenium Webdriver File Upload error element ice:inputFile

My lack of familiarity with JavaScript leads me to believe that I may be making a syntax error. The approach I tried is outlined below:

String ew = (String)js.executeScript("document.getElementByXPath('//form[@id='fileUploadForm']/input[3]')");
String j = "arguments[0].style.height='auto'; arguments[0].style.visibility='visible';";
js.executeScript(j, ew);

I found some guidance here: Selenium WebDriver clicking on hidden element.

However, I am currently encountering a syntax error. I used Selenium IDE to obtain the XPath. I also attempted the following alternatives, which did not yield the desired outcome:

((JavascriptExecutor)driver).executeScript("document.getElementByClassName(iceInpFileTxt).style.visibility = 'visible';");
((JavascriptExecutor)driver).executeScript("document.getElementByClassName('iceInpFileTxt').value = 'D:\\AD\\Prac\\Prac\\002 EditPrac Add Person Error.xml-revHEAD.svn000.tmp.xml'");

Any advice or recommendations would be greatly appreciated.

javascriptseleniumwebdriver

Answer №1

As you navigate a page with an <iframe> element, remember to switch the driver context to that <iframe> element initially:

driver.switchTo().frame("batchLoad:inputFile:uploadFrame");

After doing so, proceed with your standard upload method.

driver.findElement(By.name("upload")).sendKeys("D:\\AD\\Prac\\Prac\\002 EditPrac Add Person Error.xml-revHEAD.svn000.tmp.xml");

Remember to switch back to the default content using 

driver.switchTo().defaultContent();
when interacting with elements outside the <iframe>.

Additional points to consider:

  • The iframe declaration lacks a closing </head> tag. This is not critical but worth noting for web development purposes.
  • There's no need to manipulate visibility of hidden elements or manually input files into hidden input unless dealing with Flash/Silverlight controls. Set the value directly.

  • String ew = (String)js.executeScript("document.getElementByXPath('//form[@id='fileUploadForm']/input[3]')");

    contains an error. Address the nested single quote by escaping with a \. Ensure the result type cast is to WebElement, not String.

  • js.executeScript(j, ew);

    As mentioned above, the second parameter should be a WebElement. If you've already switched frames correctly, you can locate it using driver.findElement().

  • document.getElementByClassName() is incorrect. The correct method is 

    document.getElementsByClassName()
    (plural "elements"). Remember it returns a set of elements, requiring iteration or direct selection like [0].

  • document.getElementByClassName(iceInpFileTxt).style.visibility = 'visible';

    has an error as it expects a string input, thus quote "iceInpFileTxt".

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