DomeKey

DomeKey lets you customise headphone buttons

Install

Examples

Video controls:

map <Up> <Left>
map <Play> <Space>
map <Down> <Right>

Preserve volume buttons and include video controls in a mode:

# Don't launch iTunes when pressing the middle button
map <Play> <Nop>

mode <Play><Play> {
    map <Up> <Left>
    map <Play> <Space>
    map <Down> <Right>
}

Application switcher:

map <Up> <D-S-Tab>
map <Down> <D-Tab>

Open frequently used applications:

cmd <Up>   open -a Terminal
cmd <Play> open -a Xcode
cmd <Down> open -a Firefox

Open Terminal window #2:

cmd <Play> osascript -e 'activate application "Terminal"' -e 'tell application "System Events" to keystroke "2" using command down'