Highlight only one cell per row

Question

My goal is to be able to highlight a cell when clicked and un-highlight when clicked again.

Each row can have only one cell highlighted.

Below is my attempted code and here is the fiddle .

Thanks.

HTML:

<div class="hws-css-filter" >
  <div class="hws-css-filter-tr">
    <div class="hws-css-filter-td"></div>
    <div class="hws-css-filter-td"></div>
    <div class="hws-css-filter-td"></div>
  </div>
  <div class="hws-css-filter-tr">
    <div class="hws-css-filter-td"></div>
    <div class="hws-css-filter-td"></div>
    <div class="hws-css-filter-td"></div>
  </div>
</div>

jQuery

$('.hws-css-filter-td').click(function () {
    var theTable = $(this).closest('.hws-css-filter-tr');
    $(theTable).each(function () {
        $(this).css("background-color", "");
    });
    $(this).css("background-color", "blue");
});

Answer 1

Remove the background color of all siblings first like following.

 $('.hws-css-filter-td').click(function() { $(this).siblings().css("background-color", ""); $(this).css("background-color", "blue"); }); 

 .hws-css-filter { display: table; margin: auto; vertical-align: middle; } .hws-css-filter-tr { display: table-row; padding: 0; margin: 0; } .hws-css-filter-td { display: table-cell; border: 1px solid #000; width: 15px; height: 15px; line-height: 15px; text-align: center; vertical-align: middle; padding: 0; margin: 0; font-family: monospace; font-size: 10px; text-transform: uppercase; cursor: pointer; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="hws-css-filter"> <div class="hws-css-filter-tr"> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> </div> <div class="hws-css-filter-tr"> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> </div> <div class="hws-css-filter-tr"> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> </div> </div> 

UPDATE: To select unselected.

 $('.hws-css-filter-td').click(function() { $(this).siblings().removeClass('selected'); $(this).toggleClass('selected'); }); 

 .hws-css-filter { display: table; margin: auto; vertical-align: middle; } .hws-css-filter-tr { display: table-row; padding: 0; margin: 0; } .hws-css-filter-td { display: table-cell; border: 1px solid #000; width: 15px; height: 15px; line-height: 15px; text-align: center; vertical-align: middle; padding: 0; margin: 0; font-family: monospace; font-size: 10px; text-transform: uppercase; cursor: pointer; } .selected { background-color: blue; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="hws-css-filter"> <div class="hws-css-filter-tr"> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> </div> <div class="hws-css-filter-tr"> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> </div> <div class="hws-css-filter-tr"> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> </div> </div> 

UPDATED FIDDLE

Answer 2

To better manage cell formatting, create a new style for highlighted cells

.cell_highlight{
    background-color: blue;
}

and set the jQuery event:

$('.hws-css-filter-td').click(function () {
    $(this).siblings().removeClass("cell_highlight"); 
    $(this).addClass("cell_highlight");
});

Answer 3

This will satisfy all of your requests:

1. Highlight on click
2. Un-highlight if clicked again
3. Only one highlighted cell allowed per row

 $('.hws-css-filter-td').on('click', function() { var $this = $(this); if ($this.hasClass('blue-highlight')) { $this.removeClass('blue-highlight'); } else { $this.addClass('blue-highlight'); $this.siblings().removeClass('blue-highlight'); } }); 

 .hws-css-filter-td { border: solid 1px #000; height: 25px; width: 25px; float: left; } .hws-css-filter-tr { clear: left; } .blue-highlight { background-color: blue; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="hws-css-filter" > <div class="hws-css-filter-tr"> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> </div> <div class="hws-css-filter-tr"> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> <div class="hws-css-filter-td"></div> </div> </div> 

Answer 4

Based on Figor's answer but also with toggling the highlighted cell https://jsfiddle.net/dwsL9z63/5/

   $('.hws-css-filter-td').click(function () {
      if($(this).hasClass("cell_highlight")){
        $(this).removeClass("cell_highlight");
      }
      else{
         $(this).addClass("cell_highlight");
      }

      $(this).siblings().removeClass("cell_highlight");

   });