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jQuery UI Slider Labels Under Slider

I am limited to using jQuery 1.4.2 and jQuery ui 1.8.5 (this is not by choice, please do not ask me to upgrade to latest versions). I have created a slider that shows the current value above the slide bar, but what I need now is a way to populate a legend below the slide bar distanced the same as the slider (i.e. if the slider is 100px wide and there are five values the slider will snap every 20px. In this example, I would like the values in the legend to be placed at 20px intervals).

Here is an example of what I want:

Slider

Here is the jQuery I have (assimilated from the ui slider demo page):

//select element with 5 - 20 options var el = $('.select');  //add slider var slider = $( '<div class="slider"></div>' ).insertAfter( el ).slider({     min: 1,     max: el.options.length,     range: 'min',     value: el.selectedIndex + 1,     slide: function( event, ui ) {       el.selectedIndex = ui.value - 1;       slider.find("a").text(el.options[el.selectedIndex].label);     },     stop: function() {       $(el).change();     } });  slider.find("a").text(el.options[el.selectedIndex].label); //pre-populate value into slider handle. 
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Richard Parnaby-King Avatar asked Apr 19 '12 09:04

Richard Parnaby-King


2 Answers

The posted solutions are totally workable, but here is another solution that requires no additional plugins and produces this (see fiddle):

a slider with simple labels

Here's how to do it:

  1. Initiate the slider.

  2. For each of the possible values, append a label element with position: absolute (the slider is already position: relative, so the labels will be positioned relative to the slider).

  3. For each label, set the left property to a percentage.

CSS

#slider label {   position: absolute;   width: 20px;   margin-top: 20px;   margin-left: -10px;   text-align: center; } 

JS

// A slider with a step of 1 $("#slider").slider({     value: 4,     min: 1,     max: 7,     step: 1 }) .each(function() {      // Add labels to slider whose values      // are specified by min, max      // Get the options for this slider (specified above)     var opt = $(this).data().uiSlider.options;      // Get the number of possible values     var vals = opt.max - opt.min;      // Position the labels     for (var i = 0; i <= vals; i++) {          // Create a new element and position it with percentages         var el = $('<label>' + (i + opt.min) + '</label>').css('left', (i/vals*100) + '%');          // Add the element inside #slider         $("#slider").append(el);      }  }); 
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chrisfargen Avatar answered Oct 12 '22 10:10

chrisfargen


To create a legend, we need to know the width of the slider and the number of elements then divide one against the other:

//store our select options in an array so we can call join(delimiter) on them var options = []; for each(var option in el.options) {   options.push(option.label); }  //how far apart each option label should appear var width = slider.width() / (options.length - 1);  //after the slider create a containing div with p tags of a set width. slider.after('<div class="ui-slider-legend"><p style="width:' + width + 'px;">' + options.join('</p><p style="width:' + width + 'px;">') +'</p></div>'); 

The p tag needs to have the style 'display:inline-block' to render correctly, otherwise each label will take one line or the labels will be stacked up right next to each other.

I have created a post explaining the problem and solution: jQuery UI Slider Legend Under Slider which contains a live demo of this working.

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Richard Parnaby-King Avatar answered Oct 12 '22 11:10

Richard Parnaby-King