developers.smarttv-alliance.org

Re: Handling Back

2015-09-01T01:28:10-07:00

Hi,

You need to register a 'keydown' event listener:

Code:: window.document.addEventListener("keydown", keyDownHandler, false); function keyDownHandler(event) { switch(event.keyCode) { case KEY_LEFT : break; case KEY_RIGHT : break; case KEY_UP : break; case KEY_DOWN : break; case KEY_ENTER : break; case KEY_BACK : processBack(); break; case KEY_PAUSE : break; case KEY_PLAY : break; case KEY_STOP : break; case KEY_RW : break; case KEY_FF : break; default: return; } } function processBack() { if (myplatform[\"manufacturer\"] == \"LG\") {/* YOU NEED TO DETERMINE THE PLATFORM */ if(window.NetCastBack) { window.NetCastBack(); //window.NetCastReturn(KEY_BACK); // <- OR THIS } } // Smart TV Alliance if(typeof SmartTvA_API !== undefined) {/* YOU'D EXPECT THIS TO WORK FOR ALL, BUT IT DOES NOT */ try { SmartTvA_API.exit(); } catch(e) {} } window.close(); window.history.back(); }

Hope it helps.

Statistics: Posted by aisaia — Tue Sep 01, 2015 1:28 am

Handling Back

2015-06-30T10:22:02-07:00

I'm sad nobody seems to know the answer to this question.

I see there's this code:

Code:: function processBack() { if (myplatform[\"manufacturer\"] == \"LG\") { if(window.NetCastBack) { window.NetCastBack(); } } }

But I don't understand how or where this actually gets called via button press.

Statistics: Posted by edunn_1 — Tue Jun 30, 2015 10:22 am

Handling Back

2015-06-18T11:45:24-07:00

I have a question about how to get the back button to quit the app back to the live TV.

Do I map commands to function keydownhandler(e)?

Additionally, when do I use SmartTvA_API.exit(); ?

My need is when back is pressed, I save some data about the current video time code to localstorage, I'm just not sure how to grab the back command.

In the sample video player app, I don't see any mapping of an exit or back command, but on the emulator, I'm able to return to the first page of my two-page app. When I'm sitting on the index file (the first page of the 2 page app) the back button doesn't return me to the TV app menu. I'm confused where and how the back button gets defined.

Thanks so much for your help.

Statistics: Posted by edunn_1 — Thu Jun 18, 2015 11:45 am