javascript - enter key to follow the tabindex (in scenario where enter key is changed to behave as tab)

Question

I have a 3x3 table within a form. By default tab key moves the cursor in horizontal directions on these input fields. When a tabindex is given ( Like in the example below) the tab key moves cursor columns wise instead of row wise, as I needed.

With various sources from SO answers, I came up with the Jquery to use enter key as tab. But, could not figure out how to follow the tabindex as achieved above , i.e by pressing enter key instead of cursor moving row-wise, i want it to move in column wise. Below is what I have so far, any help is appreciated.

Demo of how it currently works. http://jsfiddle.net/unCu5/125/

Source of below code: jquery how to catch enter key and change event to tab

<table>
    <tr>
        <td><input tabindex="1" placeholder="1" /></td>
        <td><input tabindex="2" placeholder="2" /></td>
        <td><input tabindex="3" placeholder="3" /></td>
    </tr><tr>
        <td><input tabindex="1" placeholder="1" /></td>
        <td><input tabindex="2" placeholder="2" /></td>
        <td><input tabindex="3" placeholder="3" /></td>
    </tr><tr>
        <td><input tabindex="1" placeholder="1" /></td>
        <td><input tabindex="2" placeholder="2" /></td>
        <td><input tabindex="3" placeholder="3" /></td>
    </tr>
</table>

$('input').live("keypress", function(e) {
  /* ENTER PRESSED*/
  if (e.keyCode == 13) {
    /* FOCUS ELEMENT */
    var inputs = $(this).parents("form").eq(0).find(":input");
    var idx = inputs.index(this);

    if (idx == inputs.length - 1) {
      inputs[0].select()
    } else {
      inputs[idx + 1].focus(); //  handles submit buttons
      inputs[idx + 1].select();
    }
    return false;
  }
})

@Dekel solution work for the html scenario he displayed, but I have a different type of HTML on view source. How do I fix this

Answer 1

Instead of just focus the next input element, you can find the next element (based on the tabindex) and focus on him:

$('input[tabindex^="2"]');

Check this example:

$(document).ready(function () { // Will only run once the page Document Object Model (DOM) is ready for JavaScript code 
    // Create a jQuery object containing the html element 'input'
    // Create a .not() method to exclude buttons for keypress event
    $(":input:not(:disabled)").not($(":button")).keypress(function(evt) {
        // If the keypress event code is 13 (Enter)
        if (evt.keyCode == 13) {
            // get the attribute type and if the type is not submit
            itype = $(this).prop('type');
            if (itype !== 'submit') {
                currentTabindex = $(this).attr('tabindex');
                if (currentTabindex) {
                    nextInput = $('input[tabindex^="'+ (parseInt(currentTabindex)+1) +'"]');
                    if (nextInput.length) {
                        nextInput.focus();
                        return false;
                    }
                }
            }
        }
    });
});

<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<table>
    <tr>
        <td><input tabindex="1" placeholder="1" /></td>
        <td><input tabindex="4" placeholder="4" /></td>
        <td><input tabindex="7" placeholder="7" /></td>
    </tr><tr>
        <td><input tabindex="2" placeholder="2" /></td>
        <td><input tabindex="5" placeholder="5" /></td>
        <td><input tabindex="8" placeholder="8" /></td>
    </tr><tr>
        <td><input tabindex="3" placeholder="3" /></td>
        <td><input tabindex="6" placeholder="6" /></td>
        <td><input tabindex="9" placeholder="9" /></td>
    </tr>
</table>