Dojo Horizontal Slider - A tooltip to hover over the slider handle with current slider value? - dojo

Question

I have just started with Dojo widgets. Recently, I did this Dijit Horizontal Slider Sample,and I have been wondering how to make a tooltip follow the slider handle with the current slider value as the tooltip content.
I have tried the same but am facing two issues:
One, the tooltip appears at the end of the slider rather than constantly hovering on the slider handle.
Two, the tooltip displays a value only when I stop sliding rather than changing seamlessly.
How to overcome these?

Answer 1

If you want the tooltip to move with the slider, you have to find a way to open it from the slider handle, not from the entire horizontal slider widget. I do not know if the actual slider you move with the mouse is it's own widget or not. From the declarative sample online the HTML for the handle looks like this
<div data-dojo-attach-point="sliderHandle,focusNode" class="dijitSliderImageHandle dijitSliderImageHandleH" data-dojo-attach-event="press:_onHandleClick" role="slider" aria-valuemin="-10" aria-valuemax="10" tabindex="0" aria-valuenow="4" style="position: absolute;"></div>
So you can try something like the following, if you can get a reference to the sliderHandle object.
/*
* Create the tooltip dialog that you want to show (I use tooltip dialog,
* but you can do the same with basic tooltip)
*/
var myTooltipDialogbase = new ttdialog({
id: 'myTooltipDialogBase',
style: "width: 275px;"
});
Then in your event handler (in this example right mouse click) you open the popup
/**
* On right mouse click, opens the tooltip dialog
*/
on(sliderHandle, 'contextmenu', function (event) {
popup.open({
parent: sliderHandle,
popup: myTooltipDialogbase,
around: sliderHandle.domNode
});
});
EDIT:
For your second question, you can use the slider property onChange() to do something each time the value of the slider changes. You must set intermediateChanges=true so onChange is called when sliding. In your case, in onChange(), if you can get a reference to the tooltip, then change the value of one of the tooltip objects for every value change of the slider.