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Is there a way to determine whether a virtual device slider was changed by physically moving the slider or whether it was updated with LUA?

This is for a now playing progress bar. In the slider's LUA script I want to ignore when the slider was updated by the main loop LUA code.


fibaro:getSourceTrigger() sadly doesn't work for virtual devices.



Issue resolved.

Use fibaro:call(id, "setProperty", "ui.Slider1.value", position) to change the value and position of a slider without running the code in the slider.

The slider on the web interface may not move without refreshing the page when this is called but it does work.

Edited by seiq
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For triggering in Virtual Devices I use getModificationTime or getGlobalModificationTime.


For example, for triggering when a global variable is changed:


        -- Detecting global variable change and get value
function globVarChange(globVar, secMin, secMax, debugShow)
  local globVarChanged = false;
  local lastChangeGlobVar = tonumber(((os.time()) - tonumber(fibaro:getGlobalModificationTime(globVar))));
  if lastChangeGlobVar > secMin and lastChangeGlobVar <= secMax then
    globVarChanged = true;
    if debugShow then fibaro:debug('<span style="color:green">Global variable</span><span style="color:yellow"> '..globVar..' </span><span style="color:orange">Change state detected</span>') end;
  if globVarChanged or globVarValue == nil then
    globVarValue = fibaro:getGlobal(globVar);
    if debugShow then fibaro:debug('<span style="color:green">Global variable</span><span style="color:yellow">  '..globVar..' </span><span style="color:green"> status value: </span>'..'<span style="color:yellow">'..tostring(globVarValue)..'</span>') end;
  return globVarChanged, globVarValue or 0

globVar = Global Variable name (string)

secMin = Low value (number, time in seconds) when the function has to be executed

secMax = High value (number, time in seconds) when the function has to be executed

debugShow = Enable (true) or disable (false) debug messages

EDIT: Returning values:

globVarChanged = When changed detected true, when not false

globVarValue = Value of global variable after the change


For example, if you want to trigger as fast as possible then secMin = 0 and secMax = 3. If you want to wait for a another process to finish, say after 10 seconds, then secMin = 10 and secMin = 13.


Beware that a trigger in a VD is not as quick as a scene trigger. The maximal delay is the Main Loop execution delay which is 3 seconds. That's why you have to make a secMin and a secMax value range of 3 seconds.


Also be aware that you be carefull to use fibaro:sleep() or other delaying technics in you mainloop without keeping the consequences for the secMax value in Mind.


It's just an example, I hope this is what you meant.

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Edited by Lambik
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  • It's just an example, I hope this is what you meant.

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    Thanks Lambik, but not what I'm after sorry.

    My idea with the getSourceTrigger() method working in the LUA code for a VD slider (or button) would be that it would return { type="other" } when the slider was moved using the GUI and return { type="property", propertyName="value", deviceID=id } when the slider value was changed using fibaro:call(vdID,"setSlider", "1", position) from the main loop of the virtual device.

    This is so the main loop can update the progress slider value without causing the code in the slider to run.

    Worked this out by using fibaro:call(vdID, "setProperty", "ui.progressSlider.value", 50) which doesn't cause the slider's LUA code to run. Tried this initially but when I was testing using the web interface it didn't look like "setProperty" moved the slider. Turns out it does and is just a bug in the web interface. Need to refresh the page for the slider position to be updated. Mobile apps work fine.

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