bufferswitch.sh

#!/usr/bin/env bash

# Author: Aeghn

# A script for buffer switching between emacs buffers, firefox tabs and other windows.

# dependences: jq i3 qutebrowser emacs
# set -eo pipefail

# QUTEBROWSER_SESSION_FILE="/tmp/qutebrowser_buffers_zsbd"
# QUTEBROWSER_SOCKET_FILE="${XDG_RUNTIME_DIR}/qutebrowser/ipc-$(echo -n "$USER" | md5sum | cut -d' ' -f1)"
# BUFFERSWITCH_TEMP_FILE="/tmp/bufferswitch_temp_zsbd"

emacsclient="$HOME/.local/bin/emacsclient"
#emacsclient="emacsclient"


get_emacs_daemon_buffers() {
    ls /run/user/1000/emacs -I chinbox | while read line; do
        echo -e $($emacsclient --socket-name=$line -e '
(progn
  (setq-default return-buffer "\n")
  (dolist (buffer (buffer-list))
    (with-current-buffer buffer
      (let* ((name (buffer-name)))
        (when (not (string= (substring name 0 1) " "))
         (setq return-buffer (concat return-buffer "ee | " name "\\0meta\\x1f" chin/emacs-load-mode " " default-directory "\\x1finfo\\x1fee " chin/emacs-load-mode " " name "\n"))))))
  return-buffer)')
    done
}


# get_qutebrowser_buffers() {
#     echo '{"args":[":save-window-and-buffers"], "target_arg":"", "protocol_version":1}' |\
    #         socat - UNIX-CONNECT:"$QUTEBROWSER_SOCKET_FILE"
#     for((i=0; i<5; i++)); do
#         [ -f $QUTEBROWSER_SESSION_FILE ] && break || sleep 0.01
#     done
#     cat "$QUTEBROWSER_SESSION_FILE" | sed "s/^/ff  /g"
#     i3-msg "[title=\"CHin_bufferswitch\"] focus" &> /dev/null
# }

get_firefox_buffers() {
    dbus-send --session --print-reply\
              --dest=me.wangz.BrowserTabs\
              /me/wangz/BrowserTabs me.wangz.BrowserTabs.tabs\
        | sed -e '1d' -e 's/^[ ]*string "//g' -e 's/"$//g'\
        | jq -r  '.[] | "ff | \(.title)\\0meta\\x1f \(.url)\\x1finfo\\x1fff \(.id)\\n"'
}

get_windows() {
    # wmctrl -l | awk "{\$1=\$3=\"\"; sub(/^ \-1/, \" d\"); sub(/^ /,\"d\"); print}"
    i3-msg -t get_tree |\
        jq -r '.nodes[].nodes[] | recurse(.nodes[], .floating_nodes[]) | select(.type == "workspace", .type == "con")|.num, .window_properties.class, .name, .window' |\
        awk '{ line=NR%4;
    if (line == "1") {skip=0; if ($1 == "-1") ws="ii"; else if ($1 != "null")  ws="i"$1 }
    else if (line == "2" && $1 ~ "null|i3bar|TelegramDesktop") { skip=1 }
    else if (line == "2" && $1 != "null") { class=$0 }
    else if (line == "3" && $1 ~ "Chin_.*") { skip=1 }
    else if (line == "3" && skip != 1) { title=$0 }
    else if (line == "0" && skip != 1) { printf("%s | %s\\0meta\\x1f%s\\x1finfo\\x1fii %s\\n\n", ws, title, class, $1) }
}'
}


get_all_objects() {
    if [ -n "${ROFI_INFO}" ]; then
        pkill rofi
        exit
    fi
    get_windows
    get_emacs_daemon_buffers
    get_firefox_buffers
}

trim_list() {
    sed -r '/^[ \t"]*$/d'
}

echo -en "$(get_all_objects | trim_list)"


try_to_switch() {
    local type="${1%% *}"
    local id="${1#* }"

    case "$type" in
        ff) firefox_switch_buffer "${id}";;
        # ff) qutebrowser_switch_buffer "${_title%:*}" ;;
        ee) emacs_switch_buffer "${id}" ;;
        ii) i3_focus_id "${id}";;
        *) : ;;
    esac
}

# qutebrowser_switch_buffer() {
#     local _id _title
#     _id="${@%% *}"
#     _title="${@#* }"
#     echo "{\"args\":[\":buffer ${_id}\"], \"target_arg\":\"\", \"protocol_version\":1}" |\
    #         socat - UNIX-CONNECT:"${QUTEBROWSER_SOCKET_FILE}"
#     i3_focus_class "qutebrowser"
# }

emacs_switch_buffer() {
    local socket="${1%% *}"
    local id="${1#* }"

    $emacsclient --socket-name=$socket -e "(progn (switch-to-buffer \"$id\")(x-focus-frame (selected-frame)))"
    i3_focus_class "Emacs"
}

firefox_switch_buffer() {
    # Thanks to https://github.com/cubimon/dbus-tabs
    local _id="$1"
    dbus-send --session --print-reply --dest=me.wangz.BrowserTabs  /me/wangz/BrowserTabs me.wangz.BrowserTabs.activate uint64:$_id

    i3_focus_class "[Ff]irefox"
}

i3_focus_class() {
    for((i=0; i<3; i++)); do
        i3-msg "[class=\"$1\" urgent=latest] focus" && return || sleep 0.1
    done
}

i3_focus_id() {
    local id=$1
    for((i=0; i<3; i++)); do
        i3-msg "[id=\"${id}\"] focus" &> /dev/null && return || sleep 0.1
    done
}

if [ -n "${ROFI_INFO}" ]; then
    try_to_switch "${ROFI_INFO}"
fi

save_buffers.py

# Temporarily drop the qutebrowser part

from qutebrowser.utils import objreg
from qutebrowser.api import interceptor, cmdutils

@cmdutils.register()
def save_window_and_buffers():
    """
    Save buffer list
    like:
    window_id/buffer_id buffer_title
    """
    qbuffers = open('/tmp/qutebrowser_buffers_zsbd', "w")
    print_buffers = ''
    for windows_id in objreg.window_registry:
        tabbed_browser = objreg.get('tabbed-browser', scope='window',
                                    window=windows_id)
        for buffer_id in range(tabbed_browser.widget.count()):
            print_buffers = print_buffers+str(windows_id)+'/'+str(buffer_id+1)+' '+str(tabbed_browser.widget.widget(buffer_id).title())+'\n'
    qbuffers.write(str(print_buffers))
    qbuffers.close()