refactor(sway): rework the whole screen capture part

modules/home-manager/desktop/sway/includes/files/screencapt.sh

@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+set -eu -o pipefail
+
+APP_NAME="ScreenCapt"
+
+declare -A COMMAND
+COMMAND=(
+  [screenshot]="grim"
+  [video]="wl-screenrec"
+)
+declare -A ICONS
+ICONS=(
+  ["screenshot"]="accessories-screenshot"
+  ["video"]="record-desktop"
+)
+
+declare -A OUTPUT_DIR
+OUTPUT_DIR=(
+  ["screenshot"]="${XDG_PICTURES_DIR:-"~/pictures"}/screenshots"
+  ["video"]="${XDG_VIDEOS_DIR:="~/videos"}/screenrecords"
+)
+
+declare -A OUTPUT_FILE_EXT
+OUTPUT_FILE_EXT=(
+  ["screenshot"]="png"
+  ["video"]="mp4"
+)
+
+TO_FILE=0
+RECORD_AUDIO=0
+ACTION="screenshot"
+REGION_TYPE="window"
+
+notify() {
+  local summary message command
+  filename="${1:-""}"
+  summary="New ${ACTION}!"
+  if [[ $TO_FILE -eq 1 ]]; then
+    message+="Available in <i>${filename##*/}</i>"
+  else
+    message+="Available in the clipboard"
+  fi
+  command=(notify-send "${summary}" --app-name="$APP_NAME")
+  if [[ -n "$filename" && "$ACTION" == "screenshots" ]]; then
+    command+=(--icon="${filename}")
+  else
+    command+=("--icon=${ICONS[$ACTION]}")
+  fi
+  command+=("$message")
+  "${command[@]}"
+}
+
+process_args() {
+  while :; do
+    case ''${1:-""} in
+    screenshot)
+      ACTION="$1"
+      ;;
+
+    video)
+      # If a video record is in progress Stop it
+      if pgrep "wl-screenrec"; then
+        kill -s SIGINT $(pgrep "wl-screenrec")
+        exit 0
+      fi
+      TO_FILE=1
+      ACTION="$1"
+      ;;
+    -r | --region)
+      if [[ "${2:-""}" =~ ^(r|region|s|screen|w|window)$ ]]; then
+        REGION_TYPE="$2"
+      else
+        exit 1
+      fi
+      ;;
+    -f | --file)
+      TO_FILE=1
+      ;;
+    -a | --with-audio)
+      RECORD_AUDIO=1
+      ;;
+    *)
+      break
+      ;;
+    esac
+    shift
+  done
+}
+
+get_app_name() {
+  local appname
+  case "$REGION_TYPE" in
+  r | region)
+    appname="region"
+    ;;
+  s | screen)
+    appname="screen"
+    ;;
+  w | window)
+    appname=$(swaymsg -t get_tree | jq -r '.. | ((.nodes? // empty) + (.floating_nodes? // empty))[] | select(.visible and .pid and .focused) | "\(.app_id)"')
+    ;;
+  esac
+  printf "%s" "${appname:-}"
+}
+
+get_region() {
+  local region switch
+  case "$REGION_TYPE" in
+  r | region)
+    region=$(slurp)
+    switch="-g"
+    ;;
+  s | screen)
+    region=$(swaymsg -t get_outputs | jq -r '.[] | select(.focused) | "\(.name)"')
+    switch="-o"
+    ;;
+  w | window)
+    region=$(swaymsg -t get_tree | jq -r '.. | ((.nodes? // empty) + (.floating_nodes? // empty))[] | select(.visible and .pid and .focused) | .rect | "\(.x),\(.y) \(.width)x\(.height)"')
+    switch="-g"
+    ;;
+  esac
+  printf "%s%s" "${switch:-}" "${region:-}"
+}
+
+get_output_filename() {
+  local date
+  printf -v date '%(%F_%H.%M.%S)T'
+  printf "%s/%s-%s.%s" "${OUTPUT_DIR[$ACTION]}" "$date" "$(get_app_name)" "${OUTPUT_FILE_EXT[$ACTION]}"
+}
+
+ensure_directories_exist() {
+  for dir in "${!OUTPUT_DIR[@]}"; do
+    mkdir -p "${OUTPUT_DIR[$dir]}"
+  done
+}
+
+main() {
+  process_args "$@"
+  ensure_directories_exist
+  local command
+  command=("${COMMAND[$ACTION]}" "$(get_region)")
+  if [[ "$TO_FILE" -eq 1 ]]; then
+    local filename
+    filename=$(get_output_filename)
+    if [[ "$ACTION" = "video" ]]; then
+      if [[ "$RECORD_AUDIO" -eq 1 ]]; then
+        command+=(--audio)
+      fi
+      command+=(-f)
+    fi
+    command+=("$filename")
+    "${command[@]}"
+  else
+    "${command[@]}" - | wl-copy
+  fi
+  notify "${filename:-""}"
+  exit 0
+}
+
+main "$@"