fdo: Using Alt+Left or Alt+Right to go back/forward results in error

[igalia]

fdo: Using Alt+Left or Alt+Right to go back/forward results in error

[elima]

This is coming from old code, when that code had access to the WebKitWebView object. Nowadays that object is kept by cog.c, and the platform-fdo's reference is null; hence the error.

IMO, the correct way to fix this is to define a key-binding interface in cog's launcher and move these calls there.

[aperezdc]

@elima Indeed, having some way of allowing Cog to request key bindings from a platform plug-in would be the best.

In the meantime, if we want to fix the hardcoded keybindings provided by the FDO platform plug-in, a stopgap measure could to obtain the Web view with:

WebKitWebView *web_view = cog_launcher_get_web_view (cog_launcher_get_default ())

This will work fine due to CogLauncher being a singleton. I'll have a patch for this in a bit.