How can I change my default applications in Oneiric to a custom application (not on the list in system info)? I'm not talking about the default applications to open filetypes - I mean the ones that appear in the dash and open when I hit keyboard hotkeys.
closed as too localized by James♦ Mar 5 '12 at 19:14
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If you're referring to the 4 icons in the bottom row of 'Dash home' all but "View Photos" can be easily set to use a custom .desktop, (custom command), & display the icon specified in that custom .desktop.
"Browse the Web; Check Email; Listen to Music" are all controlled by specific mimetypes, manually setting a custom made .desktop to the default for those mimetypes, typically in ~/.local/share/applications/mimeapps.list, will change what is shown in the Dash home screen.
The 'controlling' mimetypes are - (In the [Default Applications] section
Browse the Web; x-scheme-handler/http=
Check Email; x-scheme-handler/mailto=
Listen to Music; audio/x-vorbis+ogg=
If you wanted to see totally different things available in that 2nd row then you'd need to make changes to the source code.