@ondrej_severa

I believe there was a misunderstanding, the logic changing screens was already done with the hide_by parameters and worked, it's just that some components happened to be timing out. This didn't happen before in other projects done the same way.

Neverminding that, I reworked the project to use javascript as you suggested, I like the fact that .hmi.svg files are split, it keeps things organized. After some prolonged tests, there are no more timeouts.

There is one last flaw that I would like to work out. The chromium instance allows the user to use gestures and go back and forth in the history of pages. In some cases get to a restricted page this way.

I googled vigorously to solve this issue, but so far to no avail. Any advice on this topic?

Thanks for all the help so far!

chromium flags I tried:

--user-data-dir=/tmp/hmi-chromium
--kiosk
--incognito
--disable-pinch
--overscroll-history-navigation=0 #This should fix it but it doesn't
--disable-overscroll-edge-effect #Tried this one too
--no-sandbox
--start-fullscreen
--window-size=$SIZE
--window-position=0,0
--no-first-run
--disable-translate
--noerrdialogs
--disable-infobars
--disable-component-update

@ondrej_severa

Thanks for the example, it works as intended, I'm guessing, except that I am still missing the service.html and land on an Error 404 - Not Found page.

Any dependencies I could be missing? I am running your example on a new Raspbian lite image with fresh rex core and HMI chromium installation.

@ondrej_severa

Hello,

The alert is there, custom.js is included. All the screens work now as before, it's just that the components that switch them time out after a short while and are disabled.

Ignoring that I also force switched to the servis.html but no page is there, I checked the directory over ssh too.

I've also updated rexygen studio to 2.50.10.13072, mentioning it just in case.

hmisrc.zip

@ondrej_severa
I have done as instructed, but I don't get redirected to the service.html page, I tried to use a button component as well as a slider component. Any more advice?

The reason behind this behaviour is correct, I think, when I set the refresh rate higher/slower it takes a longer time before the components get a timeout, but it still happens even on 500 ms (default).

@cechurat

So after implementing a solution with the hide_by option we are getting a bug where most input components set their state from ONLINE to ERROR, visually they are disabled (greyed out), after a short period of running. No other functional problems, just buttons/sliders not working.

HMI log set on TRACE option:

Periodic reading failed! Request 7559 timed out
State changed to ERROR (multiple times, for reach HMI component)
Request 7559 timed out
Remaining commands: 0 message length: 0
State changed to ONLINE (multiple times, for reach HMI component)
Periodic reading failed! Request 5038 timed out

Ive used the hide_by parameter in the same manner before without problems. Any idea to the cause? Thanks in advance!

Hello,

Ive developed my project with multiple pages according to the tutorial with multiple .hmi.svg files which is working great.

The project includes a key switch that is supposed to open a setting page upon high edge. What would be the easiest way to redirect startx chromium-browser instance to a different page from a rexygen studio block. Im guessing running a bash command is the only way, but am totally lost at doing it this way.

TLDR: Chromium page redirection from a function block