loss of keyboard input when clicking outside canvas

[TheBlackSword]

Hi, I recently used Emscripten to compile a C++/SDL project that I had written into Javascript and deploy it to the web. For the most part, it seems to be working perfectly (atleast in Mozilla Firefox) except that when I embed it in a webpage, I permanently lose keyboard input if I click outside the canvas. I do not lose mouse input. I'm fairly new to HTML5/Javascript, and I am no expert with Emscripten, so I was wondering if anyone had any idea how I could fix this.  

[Alon Zakai]

Emscripten's SDL bindings might automatically capture keyboard events, which does not let the rest of the page receive them.

Is this with SDL1 or 2?

On Tue, Jan 26, 2016 at 6:59 PM, TheBlackSword <blacksworde...@gmail.com> wrote:

Hi, I recently used Emscripten to compile a C++/SDL project that I had written into Javascript and deploy it to the web. For the most part, it seems to be working perfectly (atleast in Mozilla Firefox) except that when I embed it in a webpage, I permanently lose keyboard input if I click outside the canvas. I do not lose mouse input. I'm fairly new to HTML5/Javascript, and I am no expert with Emscripten, so I was wondering if anyone had any idea how I could fix this.  

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[TheBlackSword]

SDL1

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[Alon Zakai]

SDL1 does capture keyboard events by default. Look at SDL_Init where it calls addEventListener. You can set doNotCaptureKeyboard on Module to not capture it at all, or keyboardListeningElement to make it listen on a specific HTML element (which would still allow events to reach other places on the page).

https://github.com/kripken/emscripten/blob/master/src/library_sdl.js#L1298

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[Ian Krueger]

Thank you. 

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