Cannot open file in emacs from google chrome on mac os

[panaak]

hi,

i don't know what i'm doing wrong, but i can't force google chrome to open a file in emacs client.

$EDITOR=/Applications/Emacs.app/Contents/MacOS/bin/emacsclient --create-frame --no-wait

the link in the exception page looks ok:

emacs://open?url=file://filename&line=nnn

still upon clicking there is no frame opened. i guess i should set something up in chrome or zsh or ...?

any ideas?

[RobinDaugherty]

It looks like you need to install a URL handler for the scheme on macOS. I found an example, but it hasn't been updated in 9 years and doesn't seem to work. It should be pretty easy for this support to be added to the emacs project.

If you do find a solution, please update this issue and I'll make sure it gets included in the wiki.

[panaak]

better_errors with emacsclient on mac os howto

1. create emacsclient.app

   i used platypus as described here: https://east.fm/posts/open-with-emacsclient/index.html

   the ruby script i used is a modified version of a script for the Firefox integration

   #!/usr/bin/env ruby
   
   chunk = ARGV.join
   
   head, line  = chunk.split("&line=")
   trash, file = head.split("file://")
   file = file.gsub!("%2F", "/")
   
   args = `ps aux | grep Emac[s]` == "" ? "c" : ""
   
   # puts "Running file #{file} ##{line} with args #{args}"
   `/Applications/Emacs.app/Contents/MacOS/bin/emacsclient -n#{args} +#{line} "#{file}"`

   or here: emacsclient macos gist

   copy the app to /Applications folder

2. register emacs scheme

   when you created the emacsclient.app the author is changed to the current user and so is the 'identifier' of the app.

   that is for user 'joe' the LSHandlerRoleAll key should be com.joe.emacsclient like this:

   defaults write com.apple.LaunchServices/com.apple.launchservices.secure LSHandlers -array-add '{LSHandlerURLScheme=emacs;LSHandlerRoleAll=org.joe.emacsclient;}'

   so change it accordingly and run it in Terminal.

NOTE: on Sonoma, reboot is needed after registering the handler.