This is a Spoon (or plugin) that makes it easier for Hammerspoon to interact with the Zoom videotelephony software.

If you aren’t familiar with Hammerspoon yet, it is a powerful programmable automation tool for macOS.

Using this Spoon in concert with Hammerspoon, you can do things like:

• Get notified when the Zoom app opens, starts a meeting, or starts screensharing
• Get notified when the Zoom app closes, stops a meeting, or stops screensharing
• Mute Zoom when it’s open and in a meeting or screensharing
• Unmute Zoom when it’s open and in a meeting or screensharing

The original goal for this Spoon was to enable the author to create a “mute status light” for Zoom.

1. Make sure that you have Hammerspoon installed

   If it’s not installed already, then use the Getting Started with Hammerspoon guide to learn how to install and use Hammerspoon.

2. Install the Zoom Spoon

   The easiest way to do this is to download the ZIP version of this Spoon, unzip it, then double click the Zoom.spoon folder. Hammerspoon will install it for you.

   If you plan on modifying the Spoon and sending a pull request to this repo, then you should clone this repo into your ~/.hammerspoon/Spoons

Open your Hammerspoon configuration file and edit it to make use of this Spoon. Below is a sample configuration that does the following:

• Creates a menu bar item that will display a red circle when a Zoom meeting is in progress and you are muted and a green circle if you are unmuted
• Will toggle between mute and unmute if the red or green circle is clicked
• Will assign the F13 button to be a mute toggle button

-- This lets you click on the menu bar item to toggle the mute state
zoomStatusMenuBarItem = hs.menubar.new(nil)
zoomStatusMenuBarItem:setClickCallback(function()
    spoon.Zoom:toggleMute()
end)

updateZoomStatus = function(event)
  hs.printf("updateZoomStatus(%s)", event)
  if (event == "from-running-to-meeting") then
    zoomStatusMenuBarItem:returnToMenuBar()
  elseif (event == "muted") then
    zoomStatusMenuBarItem:setTitle("🔴")
  elseif (event == "unmuted") then
    zoomStatusMenuBarItem:setTitle("🟢")
  elseif (event == "from-meeting-to-running") or (event == "from-running-to-closed") then
    zoomStatusMenuBarItem:removeFromMenuBar()
  end
end

hs.loadSpoon("Zoom")
spoon.Zoom:setStatusCallback(updateZoomStatus)
spoon.Zoom:start()

-- Next up:
-- https://github.com/adamyonk/PushToTalk.spoon/blob/master/init.lua
hs.hotkey.bind('', 'f13', function()
  spoon.Zoom:toggleMute()
end)

These three lines are the most important:

hs.loadSpoon("Zoom")
spoon.Zoom:setStatusCallback(updateZoomStatus)
spoon.Zoom:start()

The first line, hs.loadSpoon("Zoom"), loads this Spoon. The second line, uses the spoon.Zoom:setStatusCallback() method to have the updateZoomStatus function called when the state of the Zoom app changes. And finally, the last line, spoon.Zoom:start() starts up the Zoom spoon.