[Feature] Add support for right prompt.

Set WISH_RIGHT_PLUGINS to be displayed on right.
wish_append is stateful now. Appends to WISH_RIGHT_PS1 or WISH_LEFT_PS1
based on WISH_STATE. wish_append also calculates the length of right
prompt. This has the downside that right prompt can't include any text
that expands on PS1. Therefore, a limitation needs to be applied on
plugins to only append text that won't be expanded in PS1. (i.e. no \u,
\h, \w, \W, etc).
This commit is contained in:
Ceda EI 2019-12-15 21:46:52 +05:30
parent 079533b686
commit c3fbe4f699
1 changed files with 48 additions and 8 deletions

56
wish.sh
View File

@ -4,7 +4,7 @@ function wish_init() {
# Source all plugins
local plugin
local path
for plugin in ${WISH_PLUGINS[@]}; do
for plugin in ${WISH_PLUGINS[@]} ${WISH_RIGHT_PLUGINS[@]}; do
for path in "$XDG_CONFIG_HOME" "/usr/share" "$HOME/.config"; do
source "$path/wish/plugins/$plugin.sh" &> /dev/null && break
done
@ -30,7 +30,7 @@ function wish_init() {
done
# Call plugins to set colors
for plugin in ${WISH_PLUGINS[@]}; do
for plugin in ${WISH_PLUGINS[@]} ${WISH_RIGHT_PLUGINS[@]}; do
eval wish_$(echo $plugin)_set_colors $prev
done
}
@ -75,24 +75,48 @@ function wish_append() {
local fg=$(color_to_escape_code 3 $fg_code)
local bg=$(color_to_escape_code 4 $bg_code)
if [[ $WISH_STATE == 1 ]]; then
WISH_RPL=$((WISH_RPL + ${#text}))
fi
if [[ $fg_code == -1 ]]; then
PS1="$PS1$fg${bg}$text"
case $WISH_STATE in
0)
WISH_LEFT_PS1="$WISH_LEFT_PS1$fg${bg}$text"
;;
1)
WISH_RIGHT_PS1="$WISH_RIGHT_PS1$fg${bg}$text"
;;
esac
else
PS1="$PS1$bg${fg}$text"
case $WISH_STATE in
0)
WISH_LEFT_PS1="$WISH_LEFT_PS1$bg$fg$text"
;;
1)
WISH_RIGHT_PS1="$WISH_RIGHT_PS1$bg$fg$text"
;;
esac
fi
}
function wish_main() {
local prev=$?
# Set local IFS to avoid being affected by shell's IFS
local IFS=$' \n'
PS1=""
WISH_LEFT_PS1=""
WISH_RIGHT_PS1=""
local i
# Set newline
if [[ $WISH_AUTONEWLINE != 0 ]]; then
echo -ne "\033[6n" ; read -s -d ';'; read -s -d R WISH_CURSOR_POSITION
if [[ $WISH_CURSOR_POSITION != "1" ]]; then
PS1="\n"
fi
fi
# Generate left prompt.
WISH_STATE=0 # 0 = left prompt, 1 = right prompt
for i in $(seq 0 $((${#WISH_PLUGINS[@]} - 1))); do
wish_${WISH_PLUGINS[i]}_main $prev
if [[ -v WISH_POWERLINE ]] && [[ $WISH_POWERLINE != 0 ]]; then
@ -112,11 +136,27 @@ function wish_main() {
fi
fi
fi
if [[ $i -eq $((${#WISH_PLUGINS[@]} - 1)) ]]; then
PS1="$PS1\[\033[0;5;0m\]"
fi
done
# Generate Right prompt.
WISH_STATE=1
WISH_RPL=0
for i in $(seq 0 $((${#WISH_RIGHT_PLUGINS[@]} - 1))); do
if [[ -v WISH_POWERLINE && WISH_POWERLINE != 0 ]]; then
if [[ $i == 0 ]]; then
local plugin=${WISH_RIGHT_PLUGINS[$i]}
local fg_name="WISH_${plugin^^}_BG"
wish_append -1 ${!fg_name}
else
local plugin=${WISH_RIGHT_PLUGINS[$i]}
local prev_plugin=${WISH_RIGHT_PLUGINS[$(($i-1))]}
local fg_name="WISH_${plugin^^}_BG"
local bg_name="WISH_${prev_plugin^^}_BG"
wish_append ${!bg_name} ${!fg_name}
fi
fi
wish_${WISH_RIGHT_PLUGINS[$i]}_main $prev
done
PS1=$PS1"\[\e7\e[$(($COLUMNS - $WISH_RPL + 1))G$WISH_RIGHT_PS1\e8\]$WISH_LEFT_PS1\[\033[0;5;0m\]"
}
wish_init