Adding an in-course option to globally toggle closed captions on/off.

jerwin-3277
jerwin-3277 Community Member Posts: 8 ☆ Roadie ☆
in Lectora Online
I know that you can set closed captions to be automatically on or off at the title level. But either option can be a distraction for those who want / don't want them on. Is there a way that we can add some sort of button at the beginning of the course that gives the user the option to have all closed captions turned either on or off?
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  • jholland
    jholland Administrator, Rockstar Manager Posts: 73 eLearning ROCKSTAR Admin Team
    Hello @jerwin-3277 Yes, you can add a question and/or button at the beginning of the course to ask the user if they want to have closed caption on or off for the whole course. You can then use a "Run Javascript" action to set the preference course wide: 
    VarTrivSelCap.set('en');  for Captions ON
VarTrivSelCap.set('none'); for Captions OFF
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  • jerwin-3277
    jerwin-3277 Community Member Posts: 8 ☆ Roadie ☆

    Thank you!

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  • jerwin-3277
    jerwin-3277 Community Member Posts: 8 ☆ Roadie ☆
    @jholland We're using Lectora Online, not sure if that makes a difference. But the JS you provided is calling on a variable that's not in the course. Is that a variable we're supposed to create? We need a little more guidance. Help!
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  • wheels
    wheels Florida USACommunity Member, Administrator, Moderator, Rockstar Manager Posts: 636 eLearning ROCKSTAR Admin Team
    In Lectora Online the variable is different! It is called VarTriCCState so: 
    VarTriCCState.set('en');  for Captions ON
VarTriCCState.set('none'); for Captions OFF
    You should not try to create the variable.
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  • jerwin-3277
    jerwin-3277 Community Member Posts: 8 ☆ Roadie ☆
    edited January 13, 2021
    @wheels Thank you so much! That works like a charm.

    Do you by any chance know if there's a way to get the VarTriCCState to be remembered by the browser/LMS?
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  • wheels
    wheels Florida USACommunity Member, Administrator, Moderator, Rockstar Manager Posts: 636 eLearning ROCKSTAR Admin Team
    We will look into making this easier in the future.

    To save the state you will need to set to a user variable. Add a user variable in the Variable Manager and set it to Retain variable value between sessions. Then you can set up some actions that do things conditionally based on your variable. For instance if your variable is named CCON :

    On Page Show -> Show the Turn CC Off for the course button IF CCON is Empty
    On Page Show -> Show the Turn CC On for the course button IF CCON is Empty
    On Page Show -> Run JavaScript -> VarTriCCState.set(VarCCON.getValue()) IF CCON is Not Empty

    The Turn CC Buttons would also do a Modify Variable Action that set CCON to en or none.

    Hope this helps.
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