Draggable wellPanel and slider in shiny 0.11

[Anders Carlsson]

Hi,

After updateing to shiny 0.11, I’m having issues with a slider inside a draggable wellPanel. when I try to drag the slider, I also drag the panel. This results that the slider moves relative to the moving panel… Further, when I release the mouse button, only the panel stops and I the slider keeps moving. The only way to let go of the slider is to click somthing else.

Any thoughts on this?

Thanks,

Anders

[Anders Carlsson]

Hi again,

This was solved by me realizing that I had the "draggable = TRUE" inside the absolutePanel that may wellpanel was in, and not the wellPanel itself. By moving it to the wellPanel it now behaves as it did in the previous version of shiny.

Thanks,

Anders

[Anders Carlsson]

OK, turns out that did not help, it only mad me unable to move the absolute panel at all. Here is a UI that replicates my problem - run (in shiny 0.11) and try to move the slider.

Thanks again,

Anders

shinyUI(
  basicPage(
    absolutePanel(
      draggable = TRUE,
      wellPanel(  
        sliderInput("tst", h1("Testing slider"), 
                  min = 0, max = 100, value = 50, step = 1)
      )
    )
  )
)

On Friday, January 23, 2015 at 4:43:23 PM UTC-8, Anders Carlsson wrote:

[Joe Cheng]

Thanks for the bug report.

Winston: the ionrangeslider's pointerDown callback needs e.stopPropagation() (in addition to e.preventDefault(), which is already being called). We could do a PR on the ionrangeslider library, or we could add an event handler ourselves to the slider element that calls e.stopPropagation().

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[Anders Carlsson]

Great, hope it's an easy fix. 

On that note, as you now use Ion.Range Slider, can I somehow access the "values = []" to set a fixed set of possible values to select in the slider?

Thanks!

Aders

[Winston Chang]

Thanks for the report. Issue filed here: https://github.com/rstudio/shiny/issues/711

[Winston Chang]

I've pushed a fix for the draggable panel issue.

Regarding setting specific values for the slider, that functionality isn't exposed to sliderInput right now, but that may change in the future. Someone else filed an issue recently:

  https://github.com/rstudio/shiny/issues/707

[Anders Carlsson]

Thanks! 

I solved the "setting specific slider values" thing by using the slider as an integer index that then is used to collect the actual value in an other vector. By also displaying the selected value in the slider label using renderText this works pretty well.