ohmyzsh/plugins/emacs/emacsclient.sh
akinnane 08da19e3fd emacs: revert cab1ac6e68 (#7765)
Revert cab1ac6e68

The change from the above commit breaks opening a new emacs frame if
there isn't a existing frame open.

When emacs is running in daemon mode, there will always be a frame
associated with the daemon, even if there are no visible frames.

The lisp function `frame-list`, will always return 1 frame.
```
emacsclient --eval '(frame-list)'
(#<frame F1 0xa3c680>)
```

When an real frame is open, two frames are reported by the `frame-list`
function.
```
emacsclient --eval '(frame-list)'
(#<frame F1 0xa3c680> #<frame emacs Prelude - ~/oh-my-zsh/plugins/emacs/emacsclient.sh 0xf50e10>)
```

See:
https://emacs.stackexchange.com/questions/44537/extra-frame-in-visible-frame-list-when-started-in-daemon-mode-is-causing-prob
https://emacs.stackexchange.com/questions/18859/dont-let-the-daemon-frame-make-a-file-visible
2019-04-14 12:31:52 +02:00

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#!/bin/sh
_emacsfun()
{
# get list of emacs frames.
frameslist=`emacsclient --alternate-editor '' --eval '(frame-list)' 2>/dev/null | egrep -o '(frame)+'`
if [ "$(echo "$frameslist" | sed -n '$=')" -ge 2 ] ;then
# prevent creating another X frame if there is at least one present.
emacsclient --alternate-editor "" "$@"
else
# Create one if there is no X window yet.
emacsclient --alternate-editor "" --create-frame "$@"
fi
}
# adopted from https://github.com/davidshepherd7/emacs-read-stdin/blob/master/emacs-read-stdin.sh
# If the second argument is - then write stdin to a tempfile and open the
# tempfile. (first argument will be `--no-wait` passed in by the plugin.zsh)
if [ "$#" -ge "2" -a "$2" = "-" ]
then
tempfile="$(mktemp emacs-stdin-$USER.XXXXXXX --tmpdir)"
cat - > "$tempfile"
_emacsfun --no-wait $tempfile
else
_emacsfun "$@"
fi