Vendor the command set the menu and shell depend on
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#!/bin/bash
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# blob:summary=Resize the active webcam recording overlay
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# blob:group=capture
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# blob:args=<smaller|larger|reset|small|medium|large>
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# blob:examples=blob capture webcam resize smaller | blob-capture-webcam-resize reset
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set -euo pipefail
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readonly MARGIN=40
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readonly REGION_FILE="${XDG_RUNTIME_DIR:-/tmp}/blob-screenrecord-region"
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usage() {
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echo "Usage: blob-capture-webcam-resize <smaller|larger|reset|small|medium|large>" >&2
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exit 1
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}
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hypr_dispatch() {
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local lua="$1"
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shift
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hyprctl dispatch "$lua" >/dev/null 2>&1 || hyprctl dispatch "$@" >/dev/null
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}
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action=${1:-}
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case $action in
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smaller | larger | reset | small | medium | large) ;;
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*) usage ;;
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esac
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if ! client=$(hyprctl clients -j 2>/dev/null | jq -cer 'first(.[] | select(.title == "WebcamOverlay")) // empty' 2>/dev/null); then
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exit 0
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fi
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read -r address current_width current_height monitor_id < <(
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jq -r '[.address, .size[0], .size[1], .monitor] | @tsv' <<<"$client"
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)
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[[ -n $address && $current_width =~ ^[0-9]+$ && $current_height =~ ^[0-9]+$ && $monitor_id =~ ^[0-9]+$ ]] || exit 0
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((current_width > 0 && current_height > 0)) || exit 0
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if ! monitor=$(hyprctl monitors -j 2>/dev/null | jq -cer --argjson id "$monitor_id" 'first(.[] | select(.id == $id)) // empty' 2>/dev/null); then
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exit 0
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fi
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read -r monitor_x monitor_y monitor_width monitor_height < <(
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jq -r '
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. as $monitor |
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(($monitor.transform // 0) % 2 == 1) as $rotated |
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[
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.x,
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.y,
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(((if $rotated then .height else .width end) / .scale) | floor),
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(((if $rotated then .width else .height end) / .scale) | floor)
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] | @tsv
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' <<<"$monitor"
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)
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[[ $monitor_x =~ ^-?[0-9]+$ && $monitor_y =~ ^-?[0-9]+$ && $monitor_width =~ ^[0-9]+$ && $monitor_height =~ ^[0-9]+$ ]] || exit 0
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# Anchor to the recorded region when there is one, so a window picked on a wide
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# display keeps the camera in its own corner. Full-monitor captures, the portal
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# backend, and resizes outside a recording publish none and fall back here.
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anchor_x=$monitor_x
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anchor_y=$monitor_y
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anchor_width=$monitor_width
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anchor_height=$monitor_height
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if [[ -f $REGION_FILE ]] && region=$(<"$REGION_FILE"); then
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if [[ $region =~ ^([0-9]+)x([0-9]+)\+(-?[0-9]+)\+(-?[0-9]+)$ ]]; then
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anchor_width=${BASH_REMATCH[1]}
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anchor_height=${BASH_REMATCH[2]}
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anchor_x=${BASH_REMATCH[3]}
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anchor_y=${BASH_REMATCH[4]}
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fi
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fi
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# A tall, narrow region can't fit presets scaled from its own height, so cap the
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# height they scale from to what the width allows — the large preset is the
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# widest at 3/10 of it. Scaling the ladder as a whole leaves small, medium and
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# large distinct sizes for smaller and larger to step between.
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scale_height=$anchor_height
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available_width=$((anchor_width - 2 * MARGIN))
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((available_width > 0 && scale_height * 3 / 10 > available_width)) &&
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scale_height=$((available_width * 10 / 3))
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# Scale the 8:9 portrait presets from that height so they occupy the same
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# proportion of a 1080p, HiDPI, ultrawide, or 6K recording.
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small_height=$(((scale_height * 9 + 25) / 50))
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small_width=$(((small_height * 8 + 4) / 9))
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medium_height=$(((scale_height + 2) / 4))
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medium_width=$(((medium_height * 8 + 4) / 9))
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large_height=$(((scale_height * 27 + 40) / 80))
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large_width=$(((large_height * 8 + 4) / 9))
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target_width=$current_width
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target_height=$current_height
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case $action in
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small)
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target_width=$small_width
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target_height=$small_height
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;;
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medium | reset)
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target_width=$medium_width
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target_height=$medium_height
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;;
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large)
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target_width=$large_width
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target_height=$large_height
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;;
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smaller)
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if ((large_width < current_width)); then
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target_width=$large_width
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target_height=$large_height
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elif ((medium_width < current_width)); then
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target_width=$medium_width
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target_height=$medium_height
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elif ((small_width < current_width)); then
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target_width=$small_width
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target_height=$small_height
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fi
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;;
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larger)
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if ((small_width > current_width)); then
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target_width=$small_width
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target_height=$small_height
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elif ((medium_width > current_width)); then
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target_width=$medium_width
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target_height=$medium_height
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elif ((large_width > current_width)); then
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target_width=$large_width
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target_height=$large_height
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fi
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;;
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esac
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target_x=$((anchor_x + anchor_width - target_width - MARGIN))
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target_y=$((anchor_y + anchor_height - target_height - MARGIN))
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((target_x < anchor_x + MARGIN)) && target_x=$((anchor_x + MARGIN))
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((target_y < anchor_y + MARGIN)) && target_y=$((anchor_y + MARGIN))
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window="address:$address"
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hypr_dispatch \
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"hl.dsp.window.resize({ window = \"$window\", x = $target_width, y = $target_height })" \
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resizewindowpixel "exact $target_width $target_height,$window"
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hypr_dispatch \
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"hl.dsp.window.move({ window = \"$window\", x = $target_x, y = $target_y })" \
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movewindowpixel "exact $target_x $target_y,$window"
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