Focus follows mouse for Atom editor

focus-follows-mouse-atom

# Focus Follows Mouse
# -----------------------------------------
# put this in init.coffee

focusPane = (item) ->
    item.activate()
    try
      item.activeItem.focusTerm()
    catch err
        console.log(err)

followMouse = (item) ->
    elem = atom.views.getView(item)
    elem.addEventListener('mouseenter', (-> focusPane item))

# Create for additional panes as they are added
handlePaneFocus = (e) ->
    followMouse(e.pane)
atom.workspace.onDidAddPane(handlePaneFocus)

# set it up for initial panes
for p in atom.workspace.getPanes()
  followMouse p