When running b2g in the mulet (bug 943878), various event listeners fails and are never triggered. Listening on the system app frame for touch events, or listening on shell.html global window for key events aren't working. For both cases, we have to listen on the chrome event handler, which is the firefox tab <browser> element.

Comment on attachment 8362589 [details] [diff] [review] listen on chrome event handler Review of attachment 8362589 [details] [diff] [review]: ----------------------------------------------------------------- ::: b2g/chrome/content/desktop.js @@ +1,1 @@ > This file lacks a license block. Let's add it now.

Comment on attachment 8362589 [details] [diff] [review] listen on chrome event handler Review of attachment 8362589 [details] [diff] [review]: ----------------------------------------------------------------- ::: b2g/chrome/content/desktop.js @@ +7,5 @@ > let { TouchEventHandler } = require("devtools/touch-events"); > + let chromeEventHandler = window.QueryInterface(Ci.nsIInterfaceRequestor) > + .getInterface(Ci.nsIWebNavigation) > + .QueryInterface(Ci.nsIDocShell) > + .chromeEventHandler || window; uber-nit: alignment with .QueryInterface(Ci.nsIInterfaceRequestor) :)