Get the current device icon

[tieske 0]

I can set the device icon, but how can I read it?

This code;

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This is what I get;

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Is there some alternate way? Am I missing something?

[j.nowacki 5]

Do you just want to get id of current icon?

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variable "icon" will contain id of current icon in string format.

[tieske 0]

Thx for the feedback, but it doesn't work;

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returns;

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Am I missing something?

[j.nowacki 5]

If you want to stop button from changing main icon you can do something like this:

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If it doesn't help, please describe what you want to achieve.

[tieske 0]

The code I gave was just sample code to test the basics; I want to create a toggle button. Press it once, lights on, press it again, lights off (as a virtual device main button). As my virtual device also uses icons for the on and off state, I should be able to do this by checking the icon value (I cannot use globals). If the current icon is the ON icon, turn off, if it has the OFF icon, turn it on.

So my sample code sets the icon to ID '1000'. So when I read it back, I would expect to get '1000' as a return value but instead I get '28'.

[j.nowacki 5]

Ok, so first remember to use fibaro:getValue() function instead of fibaro:get(), also notice, that currentIcon's type is different from deviceIcon's type. And you can try to add a short pause before reading new value of variable.

[tieske 0]

Ok, so first remember to use fibaro:getValue() function instead of fibaro:get(), also notice, that currentIcon's type is different from deviceIcon's type.

What is the difference in type? I need to read the icon that I have set before, to make a sensible comparison to decide whether the light is currently on or off.

[j.nowacki 5]

After a few tries i don't think that would work well without use of global variables, because after restart for example, state of icon would be unknown. So i'm afraid you need to rethink the way you want to do this.

[tieske 0]

after a restart the light will be read and icon set in the mainloop. So the icon will Always have a proper value.

So why does the code return 28 instead of 1000 ?

[j.nowacki 5]

Use of main loop will cause some delay in update of icon, and thats why it's not perfect solution. I made a device for you, capable of changing icon and toogling state of switch. All you need to do is entering id of switch and id's of ON and OFF icons. Of course you need to upload 2 more icons and read their ID's from api.

[tieske 0]

I see what you did, you are polling the device status and then setting the icon from there.

I can't use polling. The device isn't a zwave device, but a virtual device and some do not support polling. Those will just be set to some 'startup state'. So I must store the state myself, and I don't want to use a global.

Tried again using a 5 seconds delay;

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But it keeps printing '28' for the icon value in the debug window. Bug maybe?

[j.nowacki 5]

Instead

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you should use

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Changing currentIcon will not affect deviceIcon, it will remain the same. Is the code you posted in a main loop or button?

[tieske 0]

same result (which is logical).

I'm using this code from a button (I want to create a toggle button)

[j.nowacki 5]

You can't change deviceIcon by changing currentIcon, these are two different values. DeviceIcon is changed manually by hitting "change icon" button in virtual device configuration. How you want to create toogle button without reading state of some other device or variable?

[tieske 0]

You can't change deviceIcon by changing currentIcon, these are two different values. DeviceIcon is changed manually by hitting "change icon" button in virtual device configuration.

Then how can I read the 'currentIcon'?

How you want to create toogle button without reading state of some other device or variable?

The state is stored in the 'currentIcon' property, if the value is the 'offIcon' then the light is off, otherwise it has the 'onIcon' value and the light is on. I'm 'abusing' the icon to store the state.

And as it is possible to set the 'currentIcon' property, I want to know how to read it...

[j.nowacki 5]

After hitting button, the virtual device will set icon of button as "currentIcon", so checking state of currentIcon in button section has no sense. Maybe you should change button icon to match the state of device. Reading currentIcon is simple as that:

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buf if you are changing icon in the same button you need to add some delay or it will alway show id of button.

[tieske 0]

Now I have it working, using a 5 second delay; but only in the same code block.

Sample code:

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Output in the debug window after 2 presses;

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Notice the 2nd press, it starts again with 0. It appears to me that whenever a piece of Lua code is run, the icon first gets reset to the default device icon, so the state I saved in the icon gets lost. This is also shown in the web interface, where the 'blue box' icon is shortly visible.

Is that intentional? Why would the HC reset that icon?

[j.nowacki 5]

As i said before after hitting button, the virtual device will set icon of button as "currentIcon". That is why you are getting id 0 in the first place. You can change icon of every button manually and it will replace defaul device icon, once button is hit. It is a feature of our system. And that is why i said that checking icon of device after you hit the button is pointless and you need to check state of module itself.

[tieske 0]

Sorry I missed that. Probably because it seems so weird to me. If an icon is set, why in the world would you want to have it reverted automatically?

What's the rationale behind this?

[j.nowacki 5]

For example, when you want to control light with virtual device you can set icons of two buttons to represent lights on and lights off. When you hit "on" button the code enables light and replace icon to show current state of module. Same for "off".

[tieske 0]

OK, so the icon I select for a specific button will be assigned to the device when that button is clicked.

Then please update the behaviour that it will only update the device icon, if the button related icon is NOT the default blue box. Or provide a checkbox "don't set icon when button is clicked" for buttons.

[ Added: 2014-06-19, 11:51 ]

Just posted in the bugzilla tool;

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