#!/bin/sh

# Herbstluftm configuration file.

# Copyright (C) 2014  Simon Ruderich
#
# This file is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this file.  If not, see <http://www.gnu.org/licenses/>.


set -e

# Log all output to catch errors in the configuration file.
logfile="$HOME/.config/herbstluftwm/log"
exec >"$logfile" 2>&1


hc() {
    herbstclient "$@"
}

# Tell all clients the configuration file was reloaded. Should be the first
# command in the autostart file.
hc emit_hook reload


# KEY BINDINGS

# Modifier used for all herbstluftwm key bindings.
mod=Mod4

# Remove all existing key bindings.
hc keyunbind --all

# Basic key bindings.
hc keybind $mod-Shift-Return spawn urxvt
hc keybind $mod-Shift-c close
hc keybind $mod-Shift-r reload
hc keybind $mod-Shift-q quit
# Lock the screen. The sleep is necessary to allow xtrlock to grab the
# keyboard input.
hc keybind $mod-z spawn sh -c 'sleep 1 && exec xtrlock'

# Tag key bindings. Create tags 1 to 9 with bindings to switch and move
# windows to them.
hc rename default 1 2>/dev/null || true
for i in `seq 1 9`; do
    hc add "$i"
    hc keybind "$mod-$i" use "$i"
    hc keybind "$mod-Shift-$i" move "$i"
done
# Switch to last active tag.
hc keybind $mod-b use_previous

# Layouting key bindings.
hc keybind $mod-space cycle_layout 1 horizontal max # toggle these layouts
hc keybind $mod-u split vertical   0.5
hc keybind $mod-o split horizontal 0.5
hc keybind $mod-r remove                            # remove a split
# Change window state.
hc keybind $mod-f fullscreen toggle

# Focus key bindings.
hc keybind $mod-h focus left
hc keybind $mod-j focus down
hc keybind $mod-k focus up
hc keybind $mod-l focus right
# Move windows.
hc keybind $mod-Shift-h shift left
hc keybind $mod-Shift-j shift down
hc keybind $mod-Shift-k shift up
hc keybind $mod-Shift-l shift right


# MOUSE BINDINGS

# Remove all existing key bindings.
hc mouseunbind --all


# WINDOW and FRAME SETTINGS

# No border for frames, only for windows.
hc set frame_border_width  0
hc set window_border_width 1
# No gaps between frames or windows.
hc set frame_gap  0
hc set window_gap 0
# Inactive window borders are black, almost invisible on my black screen.
# Active window borders are dark red.
hc set window_border_normal_color '#000000'
hc set window_border_active_color '#990000'
# Transparent background for empty frames.
hc set frame_bg_transparent 1

# Use vertical layout for windows in frames per default.
hc set default_frame_layout 1 # vertical


# LAYOUT

# Run only on startup, not when reloading the config. Thanks to The-Compiler
# in #herbstluftwm on Freenode (2014-01-10 16:26 CET) for the idea to use
# environment variables.
if ! hc getenv HLWMRC_LOADED >/dev/null; then
    hc setenv HLWMRC_LOADED 1

    # Setup my layout: Vertical split with my main terminal window in the top
    # frame, secondary windows in the bottom frame.
    hc split vertical 0.5
fi


# RULES

# Remove all existing rules.
hc unrule --all

# * Do not focus new clients (default).
# * Don't allow clients to toggle fullscreen via EWMH.
# * Move new windows to the frame at the bottom of the screen.
hc rule focus=off \
        ewmhrequests=off \
        index=1


# After everything is done, allow redrawing of the windows.
hc unlock


# $1: timeout
notify() {
    sed 's/\^/^^/g' | dzen2 -fg blue -bg yellow -y 15 -h 30 -p "$@"
}

if test -s "$logfile"; then
    echo "hlwm: errors in autostart, check log '$logfile'" | notify 3
else
    # To notify me if set -e has terminated the script.
    echo 'hlwm restarted' | notify 1
    rm "$logfile"
fi