initial commit

Author: MunifTanjim

LICENSE

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+MIT License
+
+Copyright (c) 2020 Munif Tanjim
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

mode_indicator.tmux

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+#!/usr/bin/env bash
+
+set -e
+
+mode_indicator_placeholder="\#{tmux_mode_indicator}"
+
+prefix_prompt_config='@mode_indicator_prefix_prompt'
+copy_prompt_config='@mode_indicator_copy_prompt'
+sync_prompt_config='@mode_indicator_sync_prompt'
+empty_prompt_config='@mode_indicator_empty_prompt'
+prefix_mode_style_config='@mode_indicator_prefix_mode_style'
+copy_mode_style_config='@mode_indicator_copy_mode_style'
+sync_mode_style_config='@mode_indicator_sync_mode_style'
+empty_mode_style_config='@mode_indicator_empty_mode_style'
+
+tmux_option() {
+  local -r option=$(tmux show-option -gqv "$1")
+  local -r fallback="$2"
+  echo "${option:-$fallback}"
+}
+
+indicator_style() {
+  local -r style=$(tmux_option "$1" "$2")
+  echo "${style:+#[${style/,/]#[}]}"
+}
+
+init_tmux_mode_indicator() {
+  local -r \
+    prefix_prompt=$(tmux_option "$prefix_prompt_config" " WAIT ") \
+    copy_prompt=$(tmux_option "$copy_prompt_config" " COPY ") \
+    sync_prompt=$(tmux_option "$sync_prompt_config" " SYNC ") \
+    empty_prompt=$(tmux_option "$empty_prompt_config" " TMUX ") \
+    prefix_style=$(indicator_style "$prefix_mode_style_config" "bg=blue,fg=black") \
+    copy_style=$(indicator_style "$copy_mode_style_config" "bg=yellow,fg=black") \
+    sync_style=$(indicator_style "$sync_mode_style_config" "bg=red,fg=black") \
+    empty_style=$(indicator_style "$empty_mode_style_config" "bg=cyan,fg=black")
+
+  local -r \
+    mode_prompt="#{?client_prefix,$prefix_prompt,#{?pane_in_mode,$copy_prompt,#{?pane_synchronized,$sync_prompt,$empty_prompt}}}" \
+    mode_style="#{?client_prefix,$prefix_style,#{?pane_in_mode,$copy_style,#{?pane_synchronized,$sync_style,$empty_style}}}"
+
+  local -r mode_indicator="#[default]$mode_style$mode_prompt#[default]"
+
+  local -r status_left_value="$(tmux_option "status-left")"
+  tmux set-option -gq "status-left" "${status_left_value/$mode_indicator_placeholder/$mode_indicator}"
+
+  local -r status_right_value="$(tmux_option "status-right")"
+  tmux set-option -gq "status-right" "${status_right_value/$mode_indicator_placeholder/$mode_indicator}"
+}
+
+init_tmux_mode_indicator