Broken shortcuts in file panels

[diver]

This list was moved here from ticket:11979#comment:22

App	Panel	Alt+H	Alt+D	Alt+Up	Alt+W	Esc-close	Esc-reset-filtering
Pe	Open	ok	ok	ok	ok	ok	* * *
	Save	ok	ok	ok	ok	ok	* * *
StyledEdit	Open	*	*	ok	ok	ok	* * *
	Save	ok	ok	ok	ok	ok	* * *
ShowImage	Open	*	*	ok	ok	ok	* * *
	Save	ok	ok	ok	ok	ok	* * *
MediaPlayer	Open	ok	ok	ok	ok	ok	* * *
(playlist)	Save	ok	ok	ok	ok	ok	* * *
Expander	Open	*	*	ok	ok	ok	* * *
Filer	Open	*	*	ok	ok	ok	* * *

* works after clicking into the file list or moving the selection with the cursor keys (even though file list had the blue focus border already)

* * Esc hides all files of the list

* * * Closes the panel instead of resetting the type-ahead-filtering

So, with the patches there's quite an improvement. I'd appreciate if someone more familiar with the Tracker code could look at the code changes and apply the patch.

The focus issues marked with * are a bit puzzling...
What should be improved is the ESC behaviour when the type-ahead filter is active. Then, the ESC should only reset/deactivate the filter. Currently that closes the panel right away (* * *).
See also #13151.

[waddlesplash]

According to #15148, Alt+Q does not work either.

[diver]

After hrev58282 Alt+H stopped woking.