dotfiles/hammerspoon.symlink/Spoons/ControlEscape.spoon/init.lua
2021-05-17 11:02:10 -04:00

64 lines
1.8 KiB
Lua

--- === ControlEscape ===
---
--- Adapted very loosely from https://github.com/jasonrudolph/ControlEscape.spoon
--- Removed timing/delay; always send Escape as well as Control
---
--- Make the `control` key more useful: If the `control` key is tapped, treat it
--- as the `escape` key. If the `control` key is held down and used in
--- combination with another key, then provide the normal `control` key
--- behavior.
local obj={}
obj.__index = obj
-- Metadata
obj.name = 'ControlEscape'
obj.version = '0.1'
obj.author = 'Jason Rudolph <jason@jasonrudolph.com>'
obj.homepage = 'https://github.com/jasonrudolph/ControlEscape.spoon'
obj.license = 'MIT - https://opensource.org/licenses/MIT'
function obj:init()
self.sendEscape = false
self.lastModifiers = {}
-- Create an eventtap to run each time the modifier keys change (i.e., each
-- time a key like control, shift, option, or command is pressed or released)
self.controlTap = hs.eventtap.new({hs.eventtap.event.types.flagsChanged},
function(event)
local newModifiers = event:getFlags()
if not self.lastModifiers['ctrl'] then
if newModifiers['ctrl'] then
if newModifiers['shift'] then
hs.eventtap.keyStroke({'shift'}, 'escape', 0)
else
hs.eventtap.keyStroke(newModifiers, 'escape', 0)
end
end
end
self.lastModifiers = newModifiers
end
)
end
--- ControlEscape:start()
--- Method
--- Start sending `escape` when `control` is pressed and released in isolation
function obj:start()
self.controlTap:start()
end
--- ControlEscape:stop()
--- Method
--- Stop sending `escape` when `control` is pressed and released in isolation
function obj:stop()
-- Stop monitoring keystrokes
self.controlTap:stop()
-- Reset state
self.sendEscape = false
self.lastModifiers = {}
end
return obj